From 41bb26f8db3ad33b083e57eb9fc5828796110e77 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 28 May 2017 08:56:46 +0300 Subject: [PATCH 01/34] uuid,afs: move struct uuid_v1 back into afs This essentially is a partial revert of commit ff548773 ("afs: Move UUID struct to linux/uuid.h") and moves struct uuid_v1 back into fs/afs as struct afs_uuid. It however keeps it as big endian structure so that we can use the normal uuid generation helpers when casting to/from struct afs_uuid. The V1 uuid intrepretation in struct form isn't really useful to the rest of the kernel, and not really compatible to it either, so move it back to AFS instead of polluting the global uuid.h. Signed-off-by: Christoph Hellwig Acked-by: David Howells --- fs/afs/cmservice.c | 16 ++++++++-------- fs/afs/internal.h | 11 ++++++++++- fs/afs/main.c | 2 +- include/linux/uuid.h | 24 ------------------------ 4 files changed, 19 insertions(+), 34 deletions(-) diff --git a/fs/afs/cmservice.c b/fs/afs/cmservice.c index 3062cceb5c2a..782d4d05a53b 100644 --- a/fs/afs/cmservice.c +++ b/fs/afs/cmservice.c @@ -350,7 +350,7 @@ static int afs_deliver_cb_init_call_back_state3(struct afs_call *call) { struct sockaddr_rxrpc srx; struct afs_server *server; - struct uuid_v1 *r; + struct afs_uuid *r; unsigned loop; __be32 *b; int ret; @@ -380,7 +380,7 @@ static int afs_deliver_cb_init_call_back_state3(struct afs_call *call) } _debug("unmarshall UUID"); - call->request = kmalloc(sizeof(struct uuid_v1), GFP_KERNEL); + call->request = kmalloc(sizeof(struct afs_uuid), GFP_KERNEL); if (!call->request) return -ENOMEM; @@ -453,7 +453,7 @@ static int afs_deliver_cb_probe(struct afs_call *call) static void SRXAFSCB_ProbeUuid(struct work_struct *work) { struct afs_call *call = container_of(work, struct afs_call, work); - struct uuid_v1 *r = call->request; + struct afs_uuid *r = call->request; struct { __be32 match; @@ -476,7 +476,7 @@ static void SRXAFSCB_ProbeUuid(struct work_struct *work) */ static int afs_deliver_cb_probe_uuid(struct afs_call *call) { - struct uuid_v1 *r; + struct afs_uuid *r; unsigned loop; __be32 *b; int ret; @@ -502,15 +502,15 @@ static int afs_deliver_cb_probe_uuid(struct afs_call *call) } _debug("unmarshall UUID"); - call->request = kmalloc(sizeof(struct uuid_v1), GFP_KERNEL); + call->request = kmalloc(sizeof(struct afs_uuid), GFP_KERNEL); if (!call->request) return -ENOMEM; b = call->buffer; r = call->request; - r->time_low = b[0]; - r->time_mid = htons(ntohl(b[1])); - r->time_hi_and_version = htons(ntohl(b[2])); + r->time_low = ntohl(b[0]); + r->time_mid = ntohl(b[1]); + r->time_hi_and_version = ntohl(b[2]); r->clock_seq_hi_and_reserved = ntohl(b[3]); r->clock_seq_low = ntohl(b[4]); diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 393672997cc2..4e2556606623 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -410,6 +410,15 @@ struct afs_interface { unsigned mtu; /* MTU of interface */ }; +struct afs_uuid { + __be32 time_low; /* low part of timestamp */ + __be16 time_mid; /* mid part of timestamp */ + __be16 time_hi_and_version; /* high part of timestamp and version */ + __u8 clock_seq_hi_and_reserved; /* clock seq hi and variant */ + __u8 clock_seq_low; /* clock seq low */ + __u8 node[6]; /* spatially unique node ID (MAC addr) */ +}; + /*****************************************************************************/ /* * cache.c @@ -544,7 +553,7 @@ extern int afs_drop_inode(struct inode *); * main.c */ extern struct workqueue_struct *afs_wq; -extern struct uuid_v1 afs_uuid; +extern struct afs_uuid afs_uuid; /* * misc.c diff --git a/fs/afs/main.c b/fs/afs/main.c index 51d7d17bca57..9944770849da 100644 --- a/fs/afs/main.c +++ b/fs/afs/main.c @@ -31,7 +31,7 @@ static char *rootcell; module_param(rootcell, charp, 0); MODULE_PARM_DESC(rootcell, "root AFS cell name and VL server IP addr list"); -struct uuid_v1 afs_uuid; +struct afs_uuid afs_uuid; struct workqueue_struct *afs_wq; /* diff --git a/include/linux/uuid.h b/include/linux/uuid.h index 4dff73a89758..2d095fc60204 100644 --- a/include/linux/uuid.h +++ b/include/linux/uuid.h @@ -18,30 +18,6 @@ #include -/* - * V1 (time-based) UUID definition [RFC 4122]. - * - the timestamp is a 60-bit value, split 32/16/12, and goes in 100ns - * increments since midnight 15th October 1582 - * - add AFS_UUID_TO_UNIX_TIME to convert unix time in 100ns units to UUID - * time - * - the clock sequence is a 14-bit counter to avoid duplicate times - */ -struct uuid_v1 { - __be32 time_low; /* low part of timestamp */ - __be16 time_mid; /* mid part of timestamp */ - __be16 time_hi_and_version; /* high part of timestamp and version */ -#define UUID_TO_UNIX_TIME 0x01b21dd213814000ULL -#define UUID_TIMEHI_MASK 0x0fff -#define UUID_VERSION_TIME 0x1000 /* time-based UUID */ -#define UUID_VERSION_NAME 0x3000 /* name-based UUID */ -#define UUID_VERSION_RANDOM 0x4000 /* (pseudo-)random generated UUID */ - u8 clock_seq_hi_and_reserved; /* clock seq hi and variant */ -#define UUID_CLOCKHI_MASK 0x3f -#define UUID_VARIANT_STD 0x80 - u8 clock_seq_low; /* clock seq low */ - u8 node[6]; /* spatially unique node ID (MAC addr) */ -}; - /* * The length of a UUID string ("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee") * not including trailing NUL. From dfd7487e991e5201808ff5e25fd1ffe5b1acbce8 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Thu, 4 May 2017 16:26:16 +0300 Subject: [PATCH 02/34] xfs: use uuid_copy() helper to abstract uuid_t uuid_t definition is about to change. Signed-off-by: Amir Goldstein Signed-off-by: Christoph Hellwig Reviewed-by: Brian Foster Reviewed-by: Andy Shevchenko Reviewed-by: Darrick J. Wong --- fs/xfs/xfs_inode_item.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 08cb7d1a4a3a..013cc78d7daf 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -834,9 +834,7 @@ xfs_inode_item_format_convert( in_f->ilf_dsize = in_f32->ilf_dsize; in_f->ilf_ino = in_f32->ilf_ino; /* copy biggest field of ilf_u */ - memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, - in_f32->ilf_u.ilfu_uuid.__u_bits, - sizeof(uuid_t)); + uuid_copy(&in_f->ilf_u.ilfu_uuid, &in_f32->ilf_u.ilfu_uuid); in_f->ilf_blkno = in_f32->ilf_blkno; in_f->ilf_len = in_f32->ilf_len; in_f->ilf_boffset = in_f32->ilf_boffset; @@ -851,9 +849,7 @@ xfs_inode_item_format_convert( in_f->ilf_dsize = in_f64->ilf_dsize; in_f->ilf_ino = in_f64->ilf_ino; /* copy biggest field of ilf_u */ - memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, - in_f64->ilf_u.ilfu_uuid.__u_bits, - sizeof(uuid_t)); + uuid_copy(&in_f->ilf_u.ilfu_uuid, &in_f64->ilf_u.ilfu_uuid); in_f->ilf_blkno = in_f64->ilf_blkno; in_f->ilf_len = in_f64->ilf_len; in_f->ilf_boffset = in_f64->ilf_boffset; From b1f359f9805c2a1ec0f57e08b74baf383eb4b6a9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 5 May 2017 09:53:09 +0200 Subject: [PATCH 03/34] xfs: use uuid_be to implement the uuid_t type Use the generic Linux definition to implement our UUID type, this will allow using more generic infrastructure in the future. Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Brian Foster Reviewed-by: Andy Shevchenko Reviewed-by: Darrick J. Wong --- fs/xfs/uuid.h | 4 ---- fs/xfs/xfs_linux.h | 3 +++ 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/fs/xfs/uuid.h b/fs/xfs/uuid.h index 104db0f3bed6..4f1441ba4fa5 100644 --- a/fs/xfs/uuid.h +++ b/fs/xfs/uuid.h @@ -18,10 +18,6 @@ #ifndef __XFS_SUPPORT_UUID_H__ #define __XFS_SUPPORT_UUID_H__ -typedef struct { - unsigned char __u_bits[16]; -} uuid_t; - extern int uuid_is_nil(uuid_t *uuid); extern int uuid_equal(uuid_t *uuid1, uuid_t *uuid2); extern void uuid_getnodeuniq(uuid_t *uuid, int fsid [2]); diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h index 044fb0e15390..89ee5ec66837 100644 --- a/fs/xfs/xfs_linux.h +++ b/fs/xfs/xfs_linux.h @@ -19,6 +19,7 @@ #define __XFS_LINUX__ #include +#include /* * Kernel specific type declarations for XFS @@ -38,6 +39,8 @@ typedef __s64 xfs_daddr_t; /* type */ typedef __u32 xfs_dev_t; typedef __u32 xfs_nlink_t; +typedef uuid_be uuid_t; + #include "xfs_types.h" #include "kmem.h" From e6fd2093a85d3be874c47d4f43bea5bdf0770955 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Thu, 4 May 2017 16:26:20 +0300 Subject: [PATCH 04/34] md: namespace private helper names The md private helper uuid_equal() collides with a generic helper of the same name. Rename the md private helper to md_uuid_equal() and do the same for md_sb_equal(). Signed-off-by: Amir Goldstein Signed-off-by: Christoph Hellwig Reviewed-by: Shaohua Li Reviewed-by: Andy Shevchenko --- drivers/md/md.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 212a6777ff31..a50302e42cb5 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -825,7 +825,7 @@ fail: return -EINVAL; } -static int uuid_equal(mdp_super_t *sb1, mdp_super_t *sb2) +static int md_uuid_equal(mdp_super_t *sb1, mdp_super_t *sb2) { return sb1->set_uuid0 == sb2->set_uuid0 && sb1->set_uuid1 == sb2->set_uuid1 && @@ -833,7 +833,7 @@ static int uuid_equal(mdp_super_t *sb1, mdp_super_t *sb2) sb1->set_uuid3 == sb2->set_uuid3; } -static int sb_equal(mdp_super_t *sb1, mdp_super_t *sb2) +static int md_sb_equal(mdp_super_t *sb1, mdp_super_t *sb2) { int ret; mdp_super_t *tmp1, *tmp2; @@ -1025,12 +1025,12 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor } else { __u64 ev1, ev2; mdp_super_t *refsb = page_address(refdev->sb_page); - if (!uuid_equal(refsb, sb)) { + if (!md_uuid_equal(refsb, sb)) { pr_warn("md: %s has different UUID to %s\n", b, bdevname(refdev->bdev,b2)); goto abort; } - if (!sb_equal(refsb, sb)) { + if (!md_sb_equal(refsb, sb)) { pr_warn("md: %s has same UUID but different superblock to %s\n", b, bdevname(refdev->bdev, b2)); goto abort; From 12ce5f8c5c56fcd027bb9d12d17d2628d7dd9882 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 31 May 2017 16:40:52 +0200 Subject: [PATCH 05/34] nfsd: namespace-prefix uuid_parse Signed-off-by: Christoph Hellwig --- fs/nfsd/export.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index e71f11b1a180..3bc08c394a3f 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -486,7 +486,7 @@ secinfo_parse(char **mesg, char *buf, struct svc_export *exp) { return 0; } #endif static inline int -uuid_parse(char **mesg, char *buf, unsigned char **puuid) +nfsd_uuid_parse(char **mesg, char *buf, unsigned char **puuid) { int len; @@ -586,7 +586,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen) if (strcmp(buf, "fsloc") == 0) err = fsloc_parse(&mesg, buf, &exp.ex_fslocs); else if (strcmp(buf, "uuid") == 0) - err = uuid_parse(&mesg, buf, &exp.ex_uuid); + err = nfsd_uuid_parse(&mesg, buf, &exp.ex_uuid); else if (strcmp(buf, "secinfo") == 0) err = secinfo_parse(&mesg, buf, &exp); else From 60927bc314363f91616c1f4577541c2a2e27aba3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 17 May 2017 09:56:45 +0200 Subject: [PATCH 06/34] uuid: remove uuid_be defintions from the uapi header We don't use uuid_be and the UUID_BE constants in any uapi headers, so make them private to the kernel. Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Andy Shevchenko --- include/linux/uuid.h | 15 +++++++++++++++ include/uapi/linux/uuid.h | 16 ---------------- 2 files changed, 15 insertions(+), 16 deletions(-) diff --git a/include/linux/uuid.h b/include/linux/uuid.h index 2d095fc60204..30fb13018e29 100644 --- a/include/linux/uuid.h +++ b/include/linux/uuid.h @@ -18,6 +18,21 @@ #include +typedef struct { + __u8 b[16]; +} uuid_be; + +#define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ +((uuid_be) \ +{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \ + ((b) >> 8) & 0xff, (b) & 0xff, \ + ((c) >> 8) & 0xff, (c) & 0xff, \ + (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) + +#define NULL_UUID_BE \ + UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \ + 0x00, 0x00, 0x00, 0x00) + /* * The length of a UUID string ("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee") * not including trailing NUL. diff --git a/include/uapi/linux/uuid.h b/include/uapi/linux/uuid.h index 3738e5fb6a4d..0099756c4bac 100644 --- a/include/uapi/linux/uuid.h +++ b/include/uapi/linux/uuid.h @@ -24,10 +24,6 @@ typedef struct { __u8 b[16]; } uuid_le; -typedef struct { - __u8 b[16]; -} uuid_be; - #define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ ((uuid_le) \ {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ @@ -35,20 +31,8 @@ typedef struct { (c) & 0xff, ((c) >> 8) & 0xff, \ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) -#define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ -((uuid_be) \ -{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \ - ((b) >> 8) & 0xff, (b) & 0xff, \ - ((c) >> 8) & 0xff, (c) & 0xff, \ - (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) - #define NULL_UUID_LE \ UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00) -#define NULL_UUID_BE \ - UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00) - - #endif /* _UAPI_LINUX_UUID_H_ */ From f9727a17db9bab71ddae91f74f11a8a2f9a0ece6 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 17 May 2017 10:02:48 +0200 Subject: [PATCH 07/34] uuid: rename uuid types Our "little endian" UUID really is a Wintel GUID, so rename it and its helpers such (guid_t). The big endian UUID is the only true one, so give it the name uuid_t. The uuid_le and uuid_be names are retained for now, but will hopefully go away soon. The exception to that are the _cmp helpers that will be replaced by better primitives ASAP and thus don't get the new names. Also the _to_bin helpers are named to match the better named uuid_parse routine in userspace. Also remove the existing typedef in XFS that's now been superceeded by the generic type name. Signed-off-by: Christoph Hellwig [andy: also update the UUID_LE/UUID_BE macros including fallout] Signed-off-by: Andy Shevchenko Reviewed-by: Amir Goldstein Reviewed-by: Darrick J. Wong Reviewed-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- fs/xfs/xfs_linux.h | 2 -- include/linux/uuid.h | 55 +++++++++++++++++++++++---------------- include/uapi/linux/uuid.h | 12 ++++++--- lib/test_uuid.c | 32 +++++++++++------------ lib/uuid.c | 30 ++++++++++----------- lib/vsprintf.c | 4 +-- 6 files changed, 73 insertions(+), 62 deletions(-) diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h index 89ee5ec66837..2c33d915e550 100644 --- a/fs/xfs/xfs_linux.h +++ b/fs/xfs/xfs_linux.h @@ -39,8 +39,6 @@ typedef __s64 xfs_daddr_t; /* type */ typedef __u32 xfs_dev_t; typedef __u32 xfs_nlink_t; -typedef uuid_be uuid_t; - #include "xfs_types.h" #include "kmem.h" diff --git a/include/linux/uuid.h b/include/linux/uuid.h index 30fb13018e29..c2adb8046095 100644 --- a/include/linux/uuid.h +++ b/include/linux/uuid.h @@ -20,46 +20,55 @@ typedef struct { __u8 b[16]; -} uuid_be; +} uuid_t; -#define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ -((uuid_be) \ +#define UUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ +((uuid_t) \ {{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \ ((b) >> 8) & 0xff, (b) & 0xff, \ ((c) >> 8) & 0xff, (c) & 0xff, \ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) -#define NULL_UUID_BE \ - UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00) - /* * The length of a UUID string ("aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee") * not including trailing NUL. */ #define UUID_STRING_LEN 36 -static inline int uuid_le_cmp(const uuid_le u1, const uuid_le u2) -{ - return memcmp(&u1, &u2, sizeof(uuid_le)); -} - -static inline int uuid_be_cmp(const uuid_be u1, const uuid_be u2) -{ - return memcmp(&u1, &u2, sizeof(uuid_be)); -} - void generate_random_uuid(unsigned char uuid[16]); -extern void uuid_le_gen(uuid_le *u); -extern void uuid_be_gen(uuid_be *u); +extern void guid_gen(guid_t *u); +extern void uuid_gen(uuid_t *u); bool __must_check uuid_is_valid(const char *uuid); -extern const u8 uuid_le_index[16]; -extern const u8 uuid_be_index[16]; +extern const u8 guid_index[16]; +extern const u8 uuid_index[16]; -int uuid_le_to_bin(const char *uuid, uuid_le *u); -int uuid_be_to_bin(const char *uuid, uuid_be *u); +int guid_parse(const char *uuid, guid_t *u); +int uuid_parse(const char *uuid, uuid_t *u); + +/* backwards compatibility, don't use in new code */ +typedef uuid_t uuid_be; +#define UUID_BE(a, _b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ + UUID_INIT(a, _b, c, d0, d1, d2, d3, d4, d5, d6, d7) +#define NULL_UUID_BE \ + UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \ + 0x00, 0x00, 0x00, 0x00) + +#define uuid_le_gen(u) guid_gen(u) +#define uuid_be_gen(u) uuid_gen(u) +#define uuid_le_to_bin(guid, u) guid_parse(guid, u) +#define uuid_be_to_bin(uuid, u) uuid_parse(uuid, u) + +static inline int uuid_le_cmp(const guid_t u1, const guid_t u2) +{ + return memcmp(&u1, &u2, sizeof(guid_t)); +} + +static inline int uuid_be_cmp(const uuid_t u1, const uuid_t u2) +{ + return memcmp(&u1, &u2, sizeof(uuid_t)); +} #endif diff --git a/include/uapi/linux/uuid.h b/include/uapi/linux/uuid.h index 0099756c4bac..8ef82f433877 100644 --- a/include/uapi/linux/uuid.h +++ b/include/uapi/linux/uuid.h @@ -22,17 +22,21 @@ typedef struct { __u8 b[16]; -} uuid_le; +} guid_t; -#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ -((uuid_le) \ +#define GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ +((guid_t) \ {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ (b) & 0xff, ((b) >> 8) & 0xff, \ (c) & 0xff, ((c) >> 8) & 0xff, \ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) +/* backwards compatibility, don't use in new code */ +typedef guid_t uuid_le; +#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ + GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) #define NULL_UUID_LE \ UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00) + 0x00, 0x00, 0x00, 0x00) #endif /* _UAPI_LINUX_UUID_H_ */ diff --git a/lib/test_uuid.c b/lib/test_uuid.c index 547d3127a3cf..ff36f3240e90 100644 --- a/lib/test_uuid.c +++ b/lib/test_uuid.c @@ -11,25 +11,25 @@ struct test_uuid_data { const char *uuid; - uuid_le le; - uuid_be be; + guid_t le; + uuid_t be; }; static const struct test_uuid_data test_uuid_test_data[] = { { .uuid = "c33f4995-3701-450e-9fbf-206a2e98e576", - .le = UUID_LE(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76), - .be = UUID_BE(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76), + .le = GUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76), + .be = UUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76), }, { .uuid = "64b4371c-77c1-48f9-8221-29f054fc023b", - .le = UUID_LE(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b), - .be = UUID_BE(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b), + .le = GUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b), + .be = UUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b), }, { .uuid = "0cb4ddff-a545-4401-9d06-688af53e7f84", - .le = UUID_LE(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84), - .be = UUID_BE(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84), + .le = GUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84), + .be = UUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84), }, }; @@ -61,13 +61,13 @@ static void __init test_uuid_failed(const char *prefix, bool wrong, bool be, static void __init test_uuid_test(const struct test_uuid_data *data) { - uuid_le le; - uuid_be be; + guid_t le; + uuid_t be; char buf[48]; /* LE */ total_tests++; - if (uuid_le_to_bin(data->uuid, &le)) + if (guid_parse(data->uuid, &le)) test_uuid_failed("conversion", false, false, data->uuid, NULL); total_tests++; @@ -78,7 +78,7 @@ static void __init test_uuid_test(const struct test_uuid_data *data) /* BE */ total_tests++; - if (uuid_be_to_bin(data->uuid, &be)) + if (uuid_parse(data->uuid, &be)) test_uuid_failed("conversion", false, true, data->uuid, NULL); total_tests++; @@ -90,17 +90,17 @@ static void __init test_uuid_test(const struct test_uuid_data *data) static void __init test_uuid_wrong(const char *data) { - uuid_le le; - uuid_be be; + guid_t le; + uuid_t be; /* LE */ total_tests++; - if (!uuid_le_to_bin(data, &le)) + if (!guid_parse(data, &le)) test_uuid_failed("negative", true, false, data, NULL); /* BE */ total_tests++; - if (!uuid_be_to_bin(data, &be)) + if (!uuid_parse(data, &be)) test_uuid_failed("negative", true, true, data, NULL); } diff --git a/lib/uuid.c b/lib/uuid.c index 37687af77ff8..90bee73f7bd7 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -21,10 +21,10 @@ #include #include -const u8 uuid_le_index[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15}; -EXPORT_SYMBOL(uuid_le_index); -const u8 uuid_be_index[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}; -EXPORT_SYMBOL(uuid_be_index); +const u8 guid_index[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15}; +EXPORT_SYMBOL(guid_index); +const u8 uuid_index[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}; +EXPORT_SYMBOL(uuid_index); /*************************************************************** * Random UUID interface @@ -53,21 +53,21 @@ static void __uuid_gen_common(__u8 b[16]) b[8] = (b[8] & 0x3F) | 0x80; } -void uuid_le_gen(uuid_le *lu) +void guid_gen(guid_t *lu) { __uuid_gen_common(lu->b); /* version 4 : random generation */ lu->b[7] = (lu->b[7] & 0x0F) | 0x40; } -EXPORT_SYMBOL_GPL(uuid_le_gen); +EXPORT_SYMBOL_GPL(guid_gen); -void uuid_be_gen(uuid_be *bu) +void uuid_gen(uuid_t *bu) { __uuid_gen_common(bu->b); /* version 4 : random generation */ bu->b[6] = (bu->b[6] & 0x0F) | 0x40; } -EXPORT_SYMBOL_GPL(uuid_be_gen); +EXPORT_SYMBOL_GPL(uuid_gen); /** * uuid_is_valid - checks if UUID string valid @@ -97,7 +97,7 @@ bool uuid_is_valid(const char *uuid) } EXPORT_SYMBOL(uuid_is_valid); -static int __uuid_to_bin(const char *uuid, __u8 b[16], const u8 ei[16]) +static int __uuid_parse(const char *uuid, __u8 b[16], const u8 ei[16]) { static const u8 si[16] = {0,2,4,6,9,11,14,16,19,21,24,26,28,30,32,34}; unsigned int i; @@ -115,14 +115,14 @@ static int __uuid_to_bin(const char *uuid, __u8 b[16], const u8 ei[16]) return 0; } -int uuid_le_to_bin(const char *uuid, uuid_le *u) +int guid_parse(const char *uuid, guid_t *u) { - return __uuid_to_bin(uuid, u->b, uuid_le_index); + return __uuid_parse(uuid, u->b, guid_index); } -EXPORT_SYMBOL(uuid_le_to_bin); +EXPORT_SYMBOL(guid_parse); -int uuid_be_to_bin(const char *uuid, uuid_be *u) +int uuid_parse(const char *uuid, uuid_t *u) { - return __uuid_to_bin(uuid, u->b, uuid_be_index); + return __uuid_parse(uuid, u->b, uuid_index); } -EXPORT_SYMBOL(uuid_be_to_bin); +EXPORT_SYMBOL(uuid_parse); diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 2d41de3f98a1..9f37d6208e99 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1308,14 +1308,14 @@ char *uuid_string(char *buf, char *end, const u8 *addr, char uuid[UUID_STRING_LEN + 1]; char *p = uuid; int i; - const u8 *index = uuid_be_index; + const u8 *index = uuid_index; bool uc = false; switch (*(++fmt)) { case 'L': uc = true; /* fall-through */ case 'l': - index = uuid_le_index; + index = guid_index; break; case 'B': uc = true; From b10bf0e281040f152da93fede1d43ec57caa7cee Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 10 May 2017 14:22:11 +0200 Subject: [PATCH 08/34] uuid: don't export guid_index and uuid_index These are only used in uuid.c and vsprintf.c and aren't something modules should use directly. Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Andy Shevchenko --- lib/uuid.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/lib/uuid.c b/lib/uuid.c index 90bee73f7bd7..f7116ed88e01 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -22,9 +22,7 @@ #include const u8 guid_index[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15}; -EXPORT_SYMBOL(guid_index); const u8 uuid_index[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}; -EXPORT_SYMBOL(uuid_index); /*************************************************************** * Random UUID interface From df33767d9fe0ca93c606cc9042df05e5045c8158 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 11 May 2017 14:00:57 +0200 Subject: [PATCH 09/34] uuid: hoist helpers uuid_equal() and uuid_copy() from xfs These helper are used to compare and copy two uuid_t type objects. Signed-off-by: Amir Goldstein [hch: also provide the respective guid_ versions] Signed-off-by: Christoph Hellwig Reviewed-by: Andy Shevchenko --- fs/xfs/uuid.c | 6 ------ fs/xfs/uuid.h | 7 ------- include/linux/uuid.h | 20 ++++++++++++++++++++ lib/test_uuid.c | 4 ++-- 4 files changed, 22 insertions(+), 15 deletions(-) diff --git a/fs/xfs/uuid.c b/fs/xfs/uuid.c index b83f76b6d410..29ed78c8637b 100644 --- a/fs/xfs/uuid.c +++ b/fs/xfs/uuid.c @@ -55,9 +55,3 @@ uuid_is_nil(uuid_t *uuid) if (*cp++) return 0; /* not nil */ return 1; /* is nil */ } - -int -uuid_equal(uuid_t *uuid1, uuid_t *uuid2) -{ - return memcmp(uuid1, uuid2, sizeof(uuid_t)) ? 0 : 1; -} diff --git a/fs/xfs/uuid.h b/fs/xfs/uuid.h index 4f1441ba4fa5..86bbed071e79 100644 --- a/fs/xfs/uuid.h +++ b/fs/xfs/uuid.h @@ -19,13 +19,6 @@ #define __XFS_SUPPORT_UUID_H__ extern int uuid_is_nil(uuid_t *uuid); -extern int uuid_equal(uuid_t *uuid1, uuid_t *uuid2); extern void uuid_getnodeuniq(uuid_t *uuid, int fsid [2]); -static inline void -uuid_copy(uuid_t *dst, uuid_t *src) -{ - memcpy(dst, src, sizeof(uuid_t)); -} - #endif /* __XFS_SUPPORT_UUID_H__ */ diff --git a/include/linux/uuid.h b/include/linux/uuid.h index c2adb8046095..777f9cb01eb1 100644 --- a/include/linux/uuid.h +++ b/include/linux/uuid.h @@ -35,6 +35,26 @@ typedef struct { */ #define UUID_STRING_LEN 36 +static inline bool guid_equal(const guid_t *u1, const guid_t *u2) +{ + return memcmp(u1, u2, sizeof(guid_t)) == 0; +} + +static inline void guid_copy(guid_t *dst, const guid_t *src) +{ + memcpy(dst, src, sizeof(guid_t)); +} + +static inline bool uuid_equal(const uuid_t *u1, const uuid_t *u2) +{ + return memcmp(u1, u2, sizeof(uuid_t)) == 0; +} + +static inline void uuid_copy(uuid_t *dst, const uuid_t *src) +{ + memcpy(dst, src, sizeof(uuid_t)); +} + void generate_random_uuid(unsigned char uuid[16]); extern void guid_gen(guid_t *u); diff --git a/lib/test_uuid.c b/lib/test_uuid.c index ff36f3240e90..478c049630b5 100644 --- a/lib/test_uuid.c +++ b/lib/test_uuid.c @@ -71,7 +71,7 @@ static void __init test_uuid_test(const struct test_uuid_data *data) test_uuid_failed("conversion", false, false, data->uuid, NULL); total_tests++; - if (uuid_le_cmp(data->le, le)) { + if (!guid_equal(&data->le, &le)) { sprintf(buf, "%pUl", &le); test_uuid_failed("cmp", false, false, data->uuid, buf); } @@ -82,7 +82,7 @@ static void __init test_uuid_test(const struct test_uuid_data *data) test_uuid_failed("conversion", false, true, data->uuid, NULL); total_tests++; - if (uuid_be_cmp(data->be, be)) { + if (uuid_equal(&data->be, &be)) { sprintf(buf, "%pUb", &be); test_uuid_failed("cmp", false, true, data->uuid, buf); } From ef40dda5bbc310f6517082c0ff002913104358cd Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 11 May 2017 09:01:42 +0200 Subject: [PATCH 10/34] uuid: hoist uuid_is_null() helper from libnvdimm Hoist the libnvdimm helper as an inline helper to linux/uuid.h using an auxiliary const variable uuid_null in lib/uuid.c. [hch: also add the guid variant. Both do the same but I'd like to keep casts to a minimum] The common helper uses the new abstract type uuid_t * instead of u8 *. Suggested-by: Christoph Hellwig Signed-off-by: Amir Goldstein [hch: added guid_is_null] Signed-off-by: Christoph Hellwig Acked-by: Dan Williams Reviewed-by: Andy Shevchenko --- drivers/nvdimm/btt_devs.c | 9 +-------- include/linux/uuid.h | 13 +++++++++++++ lib/uuid.c | 5 +++++ 3 files changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/nvdimm/btt_devs.c b/drivers/nvdimm/btt_devs.c index ae00dc0d9791..4c989bb9a8a0 100644 --- a/drivers/nvdimm/btt_devs.c +++ b/drivers/nvdimm/btt_devs.c @@ -222,13 +222,6 @@ struct device *nd_btt_create(struct nd_region *nd_region) return dev; } -static bool uuid_is_null(u8 *uuid) -{ - static const u8 null_uuid[16]; - - return (memcmp(uuid, null_uuid, 16) == 0); -} - /** * nd_btt_arena_is_valid - check if the metadata layout is valid * @nd_btt: device with BTT geometry and backing device info @@ -249,7 +242,7 @@ bool nd_btt_arena_is_valid(struct nd_btt *nd_btt, struct btt_sb *super) if (memcmp(super->signature, BTT_SIG, BTT_SIG_LEN) != 0) return false; - if (!uuid_is_null(super->parent_uuid)) + if (!guid_is_null((guid_t *)&super->parent_uuid)) if (memcmp(super->parent_uuid, parent_uuid, 16) != 0) return false; diff --git a/include/linux/uuid.h b/include/linux/uuid.h index 777f9cb01eb1..75f7182d5360 100644 --- a/include/linux/uuid.h +++ b/include/linux/uuid.h @@ -35,6 +35,9 @@ typedef struct { */ #define UUID_STRING_LEN 36 +extern const guid_t guid_null; +extern const uuid_t uuid_null; + static inline bool guid_equal(const guid_t *u1, const guid_t *u2) { return memcmp(u1, u2, sizeof(guid_t)) == 0; @@ -45,6 +48,11 @@ static inline void guid_copy(guid_t *dst, const guid_t *src) memcpy(dst, src, sizeof(guid_t)); } +static inline bool guid_is_null(guid_t *guid) +{ + return guid_equal(guid, &guid_null); +} + static inline bool uuid_equal(const uuid_t *u1, const uuid_t *u2) { return memcmp(u1, u2, sizeof(uuid_t)) == 0; @@ -55,6 +63,11 @@ static inline void uuid_copy(uuid_t *dst, const uuid_t *src) memcpy(dst, src, sizeof(uuid_t)); } +static inline bool uuid_is_null(uuid_t *uuid) +{ + return uuid_equal(uuid, &uuid_null); +} + void generate_random_uuid(unsigned char uuid[16]); extern void guid_gen(guid_t *u); diff --git a/lib/uuid.c b/lib/uuid.c index f7116ed88e01..680b9fb9ba09 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -21,6 +21,11 @@ #include #include +const guid_t guid_null; +EXPORT_SYMBOL(guid_null); +const uuid_t uuid_null; +EXPORT_SYMBOL(uuid_null); + const u8 guid_index[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15}; const u8 uuid_index[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}; From e64e17a554746a7f794f3d480d06e4be530fc090 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 11 May 2017 14:00:57 +0200 Subject: [PATCH 11/34] S390/sysinfo: use uuid_is_null instead of opencoding it And switch to use uuid_t instead of the old uuid_be type. Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Andy Shevchenko --- arch/s390/include/asm/sysinfo.h | 4 ++-- arch/s390/kernel/sysinfo.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h index e784bed6ed7f..2b498e58b914 100644 --- a/arch/s390/include/asm/sysinfo.h +++ b/arch/s390/include/asm/sysinfo.h @@ -109,7 +109,7 @@ struct sysinfo_2_2_2 { unsigned short cpus_shared; char reserved_4[3]; unsigned char vsne; - uuid_be uuid; + uuid_t uuid; char reserved_5[160]; char ext_name[256]; }; @@ -134,7 +134,7 @@ struct sysinfo_3_2_2 { char reserved_1[3]; unsigned char evmne; unsigned int reserved_2; - uuid_be uuid; + uuid_t uuid; } vm[8]; char reserved_3[1504]; char ext_names[8][256]; diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c index eefcb54872a5..fb869b103825 100644 --- a/arch/s390/kernel/sysinfo.c +++ b/arch/s390/kernel/sysinfo.c @@ -242,7 +242,7 @@ static void print_ext_name(struct seq_file *m, int lvl, static void print_uuid(struct seq_file *m, int i, struct sysinfo_3_2_2 *info) { - if (!memcmp(&info->vm[i].uuid, &NULL_UUID_BE, sizeof(uuid_be))) + if (uuid_is_null(&info->vm[i].uuid)) return; seq_printf(m, "VM%02d UUID: %pUb\n", i, &info->vm[i].uuid); } From cb0ba6cc22f372a2d42f9f2afc5a35f432cc61e2 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 5 May 2017 09:39:10 +0200 Subject: [PATCH 12/34] xfs: remove uuid_getnodeuniq and xfs_uu_t Opencode uuid_getnodeuniq in the only caller, and directly decode the uuid_t representation instead of using a structure cast for it. Signed-off-by: Christoph Hellwig --- fs/xfs/uuid.c | 25 ------------------------- fs/xfs/uuid.h | 1 - fs/xfs/xfs_mount.c | 5 ++++- 3 files changed, 4 insertions(+), 27 deletions(-) diff --git a/fs/xfs/uuid.c b/fs/xfs/uuid.c index 29ed78c8637b..737c186ea98b 100644 --- a/fs/xfs/uuid.c +++ b/fs/xfs/uuid.c @@ -17,31 +17,6 @@ */ #include -/* IRIX interpretation of an uuid_t */ -typedef struct { - __be32 uu_timelow; - __be16 uu_timemid; - __be16 uu_timehi; - __be16 uu_clockseq; - __be16 uu_node[3]; -} xfs_uu_t; - -/* - * uuid_getnodeuniq - obtain the node unique fields of a UUID. - * - * This is not in any way a standard or condoned UUID function; - * it just something that's needed for user-level file handles. - */ -void -uuid_getnodeuniq(uuid_t *uuid, int fsid [2]) -{ - xfs_uu_t *uup = (xfs_uu_t *)uuid; - - fsid[0] = (be16_to_cpu(uup->uu_clockseq) << 16) | - be16_to_cpu(uup->uu_timemid); - fsid[1] = be32_to_cpu(uup->uu_timelow); -} - int uuid_is_nil(uuid_t *uuid) { diff --git a/fs/xfs/uuid.h b/fs/xfs/uuid.h index 86bbed071e79..5aea49bf0963 100644 --- a/fs/xfs/uuid.h +++ b/fs/xfs/uuid.h @@ -19,6 +19,5 @@ #define __XFS_SUPPORT_UUID_H__ extern int uuid_is_nil(uuid_t *uuid); -extern void uuid_getnodeuniq(uuid_t *uuid, int fsid [2]); #endif /* __XFS_SUPPORT_UUID_H__ */ diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 2eaf81859166..51f7d03ef86c 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -793,7 +793,10 @@ xfs_mountfs( * Copies the low order bits of the timestamp and the randomly * set "sequence" number out of a UUID. */ - uuid_getnodeuniq(&sbp->sb_uuid, mp->m_fixedfsid); + mp->m_fixedfsid[0] = + (get_unaligned_be16(&sbp->sb_uuid.b[8]) << 16) | + get_unaligned_be16(&sbp->sb_uuid.b[4]); + mp->m_fixedfsid[1] = get_unaligned_be32(&sbp->sb_uuid.b[0]); mp->m_dmevmask = 0; /* not persistent; set after each mount */ From d905fdaaa7d59abde1535075cca6774fd7f0ef0a Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Thu, 4 May 2017 16:26:23 +0300 Subject: [PATCH 13/34] xfs: use the common helper uuid_is_null() Use the common helper uuid_is_null() and remove the xfs specific helper uuid_is_nil(). The common helper does not check for the NULL pointer value as xfs helper did, but xfs code never calls the helper with a pointer that can be NULL. Conform comments and warning strings to use the term 'null uuid' instead of 'nil uuid', because this is the terminology used by lib/uuid.c and its users. It is also the terminology used in userspace by libuuid and xfsprogs. Signed-off-by: Amir Goldstein [hch: remove now unused uuid.[ch]] Signed-off-by: Christoph Hellwig Reviewed-by: Brian Foster Reviewed-by: Andy Shevchenko --- fs/xfs/Makefile | 3 +-- fs/xfs/uuid.c | 32 -------------------------------- fs/xfs/uuid.h | 23 ----------------------- fs/xfs/xfs_linux.h | 1 - fs/xfs/xfs_log_recover.c | 6 +++--- fs/xfs/xfs_mount.c | 8 ++++---- 6 files changed, 8 insertions(+), 65 deletions(-) delete mode 100644 fs/xfs/uuid.c delete mode 100644 fs/xfs/uuid.h diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index 5c90f82b8f6b..a6e955bfead8 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -98,8 +98,7 @@ xfs-y += xfs_aops.o \ xfs_sysfs.o \ xfs_trans.o \ xfs_xattr.o \ - kmem.o \ - uuid.o + kmem.o # low-level transaction/log code xfs-y += xfs_log.o \ diff --git a/fs/xfs/uuid.c b/fs/xfs/uuid.c deleted file mode 100644 index 737c186ea98b..000000000000 --- a/fs/xfs/uuid.c +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include - -int -uuid_is_nil(uuid_t *uuid) -{ - int i; - char *cp = (char *)uuid; - - if (uuid == NULL) - return 0; - /* implied check of version number here... */ - for (i = 0; i < sizeof *uuid; i++) - if (*cp++) return 0; /* not nil */ - return 1; /* is nil */ -} diff --git a/fs/xfs/uuid.h b/fs/xfs/uuid.h deleted file mode 100644 index 5aea49bf0963..000000000000 --- a/fs/xfs/uuid.h +++ /dev/null @@ -1,23 +0,0 @@ -/* - * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef __XFS_SUPPORT_UUID_H__ -#define __XFS_SUPPORT_UUID_H__ - -extern int uuid_is_nil(uuid_t *uuid); - -#endif /* __XFS_SUPPORT_UUID_H__ */ diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h index 2c33d915e550..2d167fe643ec 100644 --- a/fs/xfs/xfs_linux.h +++ b/fs/xfs/xfs_linux.h @@ -43,7 +43,6 @@ typedef __u32 xfs_nlink_t; #include "kmem.h" #include "mrlock.h" -#include "uuid.h" #include #include diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index cd0b077deb35..8cec1e5505a4 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -352,13 +352,13 @@ xlog_header_check_mount( { ASSERT(head->h_magicno == cpu_to_be32(XLOG_HEADER_MAGIC_NUM)); - if (uuid_is_nil(&head->h_fs_uuid)) { + if (uuid_is_null(&head->h_fs_uuid)) { /* * IRIX doesn't write the h_fs_uuid or h_fmt fields. If - * h_fs_uuid is nil, we assume this log was last mounted + * h_fs_uuid is null, we assume this log was last mounted * by IRIX and continue. */ - xfs_warn(mp, "nil uuid in log - IRIX style log"); + xfs_warn(mp, "null uuid in log - IRIX style log"); } else if (unlikely(!uuid_equal(&mp->m_sb.sb_uuid, &head->h_fs_uuid))) { xfs_warn(mp, "log has mismatched uuid - can't recover"); xlog_header_check_dump(mp, head); diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 51f7d03ef86c..54452967e35e 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -80,14 +80,14 @@ xfs_uuid_mount( if (mp->m_flags & XFS_MOUNT_NOUUID) return 0; - if (uuid_is_nil(uuid)) { - xfs_warn(mp, "Filesystem has nil UUID - can't mount"); + if (uuid_is_null(uuid)) { + xfs_warn(mp, "Filesystem has null UUID - can't mount"); return -EINVAL; } mutex_lock(&xfs_uuid_table_mutex); for (i = 0, hole = -1; i < xfs_uuid_table_size; i++) { - if (uuid_is_nil(&xfs_uuid_table[i])) { + if (uuid_is_null(&xfs_uuid_table[i])) { hole = i; continue; } @@ -124,7 +124,7 @@ xfs_uuid_unmount( mutex_lock(&xfs_uuid_table_mutex); for (i = 0; i < xfs_uuid_table_size; i++) { - if (uuid_is_nil(&xfs_uuid_table[i])) + if (uuid_is_null(&xfs_uuid_table[i])) continue; if (!uuid_equal(uuid, &xfs_uuid_table[i])) continue; From 1dd771eb0b09fe9c12ea58b18c676b32a528be39 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 10 May 2017 15:16:44 +0200 Subject: [PATCH 14/34] block: remove blk_part_pack_uuid This helper was only used by IMA of all things, which would get spurious errors if CONFIG_BLOCK is disabled. Just opencode the call there. Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Acked-by: Mimi Zohar Reviewed-by: Andy Shevchenko --- include/linux/genhd.h | 11 ----------- security/integrity/ima/ima_policy.c | 3 +-- 2 files changed, 1 insertion(+), 13 deletions(-) diff --git a/include/linux/genhd.h b/include/linux/genhd.h index acff9437e5c3..e619fae2f037 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -219,12 +219,6 @@ static inline struct gendisk *part_to_disk(struct hd_struct *part) return NULL; } -static inline int blk_part_pack_uuid(const u8 *uuid_str, u8 *to) -{ - uuid_be_to_bin(uuid_str, (uuid_be *)to); - return 0; -} - static inline int disk_max_parts(struct gendisk *disk) { if (disk->flags & GENHD_FL_EXT_DEVT) @@ -736,11 +730,6 @@ static inline dev_t blk_lookup_devt(const char *name, int partno) dev_t devt = MKDEV(0, 0); return devt; } - -static inline int blk_part_pack_uuid(const u8 *uuid_str, u8 *to) -{ - return -EINVAL; -} #endif /* CONFIG_BLOCK */ #endif /* _LINUX_GENHD_H */ diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index 3ab1067db624..1431ada649e5 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -717,8 +717,7 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry) break; } - result = blk_part_pack_uuid(args[0].from, - entry->fsuuid); + result = uuid_parse(args[0].from, (uuid_t *)&entry->fsuuid); if (!result) entry->flags |= IMA_FSUUID; break; From 787d8c530af73257240fc0c0f60e296a83d5e5f4 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 1 Jun 2017 07:00:26 +0200 Subject: [PATCH 15/34] ima/policy: switch to use uuid_t Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Acked-by: Mimi Zohar Reviewed-by: Andy Shevchenko --- security/integrity/ima/ima_policy.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index 1431ada649e5..9a7c7cbdbe7c 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -61,7 +61,7 @@ struct ima_rule_entry { enum ima_hooks func; int mask; unsigned long fsmagic; - u8 fsuuid[16]; + uuid_t fsuuid; kuid_t uid; kuid_t fowner; bool (*uid_op)(kuid_t, kuid_t); /* Handlers for operators */ @@ -244,7 +244,7 @@ static bool ima_match_rules(struct ima_rule_entry *rule, struct inode *inode, && rule->fsmagic != inode->i_sb->s_magic) return false; if ((rule->flags & IMA_FSUUID) && - memcmp(rule->fsuuid, inode->i_sb->s_uuid, sizeof(rule->fsuuid))) + memcmp(&rule->fsuuid, inode->i_sb->s_uuid, sizeof(rule->fsuuid))) return false; if ((rule->flags & IMA_UID) && !rule->uid_op(cred->uid, rule->uid)) return false; @@ -711,13 +711,12 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry) case Opt_fsuuid: ima_log_string(ab, "fsuuid", args[0].from); - if (memchr_inv(entry->fsuuid, 0x00, - sizeof(entry->fsuuid))) { + if (uuid_is_null(&entry->fsuuid)) { result = -EINVAL; break; } - result = uuid_parse(args[0].from, (uuid_t *)&entry->fsuuid); + result = uuid_parse(args[0].from, &entry->fsuuid); if (!result) entry->flags |= IMA_FSUUID; break; @@ -1086,7 +1085,7 @@ int ima_policy_show(struct seq_file *m, void *v) } if (entry->flags & IMA_FSUUID) { - seq_printf(m, "fsuuid=%pU", entry->fsuuid); + seq_printf(m, "fsuuid=%pU", &entry->fsuuid); seq_puts(m, " "); } From 85787090a21eb749d8b347eaf9ff1a455637473c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 10 May 2017 15:06:33 +0200 Subject: [PATCH 16/34] fs: switch ->s_uuid to uuid_t MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For some file systems we still memcpy into it, but in various places this already allows us to use the proper uuid helpers. More to come.. Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Acked-by: Mimi Zohar  (Changes to IMA/EVM) Reviewed-by: Andy Shevchenko --- drivers/xen/tmem.c | 6 +++--- fs/ext4/super.c | 2 +- fs/f2fs/super.c | 2 +- fs/gfs2/ops_fstype.c | 2 +- fs/gfs2/sys.c | 22 +++++----------------- fs/ocfs2/super.c | 2 +- fs/overlayfs/copy_up.c | 5 ++--- fs/overlayfs/namei.c | 2 +- fs/xfs/xfs_mount.c | 3 +-- include/linux/cleancache.h | 2 +- include/linux/fs.h | 5 +++-- mm/cleancache.c | 2 +- security/integrity/evm/evm_crypto.c | 2 +- security/integrity/ima/ima_policy.c | 2 +- 14 files changed, 23 insertions(+), 36 deletions(-) diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c index 4ac2ca8a7656..bf13d1ec51f3 100644 --- a/drivers/xen/tmem.c +++ b/drivers/xen/tmem.c @@ -233,12 +233,12 @@ static int tmem_cleancache_init_fs(size_t pagesize) return xen_tmem_new_pool(uuid_private, 0, pagesize); } -static int tmem_cleancache_init_shared_fs(char *uuid, size_t pagesize) +static int tmem_cleancache_init_shared_fs(uuid_t *uuid, size_t pagesize) { struct tmem_pool_uuid shared_uuid; - shared_uuid.uuid_lo = *(u64 *)uuid; - shared_uuid.uuid_hi = *(u64 *)(&uuid[8]); + shared_uuid.uuid_lo = *(u64 *)&uuid->b[0]; + shared_uuid.uuid_hi = *(u64 *)&uuid->b[8]; return xen_tmem_new_pool(shared_uuid, TMEM_POOL_SHARED, pagesize); } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 0b177da9ea82..6e3b4186a22f 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3952,7 +3952,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) sb->s_qcop = &ext4_qctl_operations; sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; #endif - memcpy(sb->s_uuid, es->s_uuid, sizeof(es->s_uuid)); + memcpy(&sb->s_uuid, es->s_uuid, sizeof(es->s_uuid)); INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */ mutex_init(&sbi->s_orphan_lock); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 83355ec4a92c..0b89b0b7b9f7 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1937,7 +1937,7 @@ try_onemore: sb->s_time_gran = 1; sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); - memcpy(sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); + memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); /* init f2fs-specific super block info */ sbi->valid_super_block = valid_super_block; diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index ed67548b286c..b92135c202c2 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -203,7 +203,7 @@ static void gfs2_sb_in(struct gfs2_sbd *sdp, const void *buf) memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN); memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN); - memcpy(s->s_uuid, str->sb_uuid, 16); + memcpy(&s->s_uuid, str->sb_uuid, 16); } /** diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c index 7a515345610c..e77bc52b468f 100644 --- a/fs/gfs2/sys.c +++ b/fs/gfs2/sys.c @@ -71,25 +71,14 @@ static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf) return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname); } -static int gfs2_uuid_valid(const u8 *uuid) -{ - int i; - - for (i = 0; i < 16; i++) { - if (uuid[i]) - return 1; - } - return 0; -} - static ssize_t uuid_show(struct gfs2_sbd *sdp, char *buf) { struct super_block *s = sdp->sd_vfs; - const u8 *uuid = s->s_uuid; + buf[0] = '\0'; - if (!gfs2_uuid_valid(uuid)) + if (uuid_is_null(&s->s_uuid)) return 0; - return snprintf(buf, PAGE_SIZE, "%pUB\n", uuid); + return snprintf(buf, PAGE_SIZE, "%pUB\n", &s->s_uuid); } static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf) @@ -712,14 +701,13 @@ static int gfs2_uevent(struct kset *kset, struct kobject *kobj, { struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); struct super_block *s = sdp->sd_vfs; - const u8 *uuid = s->s_uuid; add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name); add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name); if (!test_bit(SDF_NOJOURNALID, &sdp->sd_flags)) add_uevent_var(env, "JOURNALID=%d", sdp->sd_lockstruct.ls_jid); - if (gfs2_uuid_valid(uuid)) - add_uevent_var(env, "UUID=%pUB", uuid); + if (!uuid_is_null(&s->s_uuid)) + add_uevent_var(env, "UUID=%pUB", &s->s_uuid); return 0; } diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index ca1646fbcaef..83005f486451 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -2062,7 +2062,7 @@ static int ocfs2_initialize_super(struct super_block *sb, cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); - memcpy(sb->s_uuid, di->id2.i_super.s_uuid, + memcpy(&sb->s_uuid, di->id2.i_super.s_uuid, sizeof(di->id2.i_super.s_uuid)); osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 7a44533f4bbf..d55fceb4e414 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -284,7 +284,6 @@ static int ovl_set_origin(struct dentry *dentry, struct dentry *lower, struct dentry *upper) { struct super_block *sb = lower->d_sb; - uuid_be *uuid = (uuid_be *) &sb->s_uuid; const struct ovl_fh *fh = NULL; int err; @@ -294,8 +293,8 @@ static int ovl_set_origin(struct dentry *dentry, struct dentry *lower, * up and a pure upper inode. */ if (sb->s_export_op && sb->s_export_op->fh_to_dentry && - uuid_be_cmp(*uuid, NULL_UUID_BE)) { - fh = ovl_encode_fh(lower, uuid); + !uuid_is_null(&sb->s_uuid)) { + fh = ovl_encode_fh(lower, &sb->s_uuid); if (IS_ERR(fh)) return PTR_ERR(fh); } diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index f3136c31e72a..de0d4f742f36 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -135,7 +135,7 @@ static struct dentry *ovl_get_origin(struct dentry *dentry, * Make sure that the stored uuid matches the uuid of the lower * layer where file handle will be decoded. */ - if (uuid_be_cmp(fh->uuid, *(uuid_be *) &mnt->mnt_sb->s_uuid)) + if (!uuid_equal(&fh->uuid, &mnt->mnt_sb->s_uuid)) goto out; origin = exportfs_decode_fh(mnt, (struct fid *)fh->fid, diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 54452967e35e..d249546da15e 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -74,8 +74,7 @@ xfs_uuid_mount( int hole, i; /* Publish UUID in struct super_block */ - BUILD_BUG_ON(sizeof(mp->m_super->s_uuid) != sizeof(uuid_t)); - memcpy(&mp->m_super->s_uuid, uuid, sizeof(uuid_t)); + uuid_copy(&mp->m_super->s_uuid, uuid); if (mp->m_flags & XFS_MOUNT_NOUUID) return 0; diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h index fccf7f44139d..bbb3712dd892 100644 --- a/include/linux/cleancache.h +++ b/include/linux/cleancache.h @@ -27,7 +27,7 @@ struct cleancache_filekey { struct cleancache_ops { int (*init_fs)(size_t); - int (*init_shared_fs)(char *uuid, size_t); + int (*init_shared_fs)(uuid_t *uuid, size_t); int (*get_page)(int, struct cleancache_filekey, pgoff_t, struct page *); void (*put_page)(int, struct cleancache_filekey, diff --git a/include/linux/fs.h b/include/linux/fs.h index 803e5a9b2654..3e68cabb8457 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -1328,8 +1329,8 @@ struct super_block { struct sb_writers s_writers; - char s_id[32]; /* Informational name */ - u8 s_uuid[16]; /* UUID */ + char s_id[32]; /* Informational name */ + uuid_t s_uuid; /* UUID */ void *s_fs_info; /* Filesystem private info */ unsigned int s_max_links; diff --git a/mm/cleancache.c b/mm/cleancache.c index ba5d8f3e6d68..f7b9fdc79d97 100644 --- a/mm/cleancache.c +++ b/mm/cleancache.c @@ -130,7 +130,7 @@ void __cleancache_init_shared_fs(struct super_block *sb) int pool_id = CLEANCACHE_NO_BACKEND_SHARED; if (cleancache_ops) { - pool_id = cleancache_ops->init_shared_fs(sb->s_uuid, PAGE_SIZE); + pool_id = cleancache_ops->init_shared_fs(&sb->s_uuid, PAGE_SIZE); if (pool_id < 0) pool_id = CLEANCACHE_NO_POOL; } diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c index d7f282d75cc1..1d32cd20009a 100644 --- a/security/integrity/evm/evm_crypto.c +++ b/security/integrity/evm/evm_crypto.c @@ -164,7 +164,7 @@ static void hmac_add_misc(struct shash_desc *desc, struct inode *inode, hmac_misc.mode = inode->i_mode; crypto_shash_update(desc, (const u8 *)&hmac_misc, sizeof(hmac_misc)); if (evm_hmac_attrs & EVM_ATTR_FSUUID) - crypto_shash_update(desc, inode->i_sb->s_uuid, + crypto_shash_update(desc, &inode->i_sb->s_uuid.b[0], sizeof(inode->i_sb->s_uuid)); crypto_shash_final(desc, digest); } diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index 9a7c7cbdbe7c..6f885fab9d84 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -244,7 +244,7 @@ static bool ima_match_rules(struct ima_rule_entry *rule, struct inode *inode, && rule->fsmagic != inode->i_sb->s_magic) return false; if ((rule->flags & IMA_FSUUID) && - memcmp(&rule->fsuuid, inode->i_sb->s_uuid, sizeof(rule->fsuuid))) + !uuid_equal(&rule->fsuuid, &inode->i_sb->s_uuid)) return false; if ((rule->flags & IMA_UID) && !rule->uid_op(cred->uid, rule->uid)) return false; From 01633fd254182eaa9372efa5c0688bf286e60d6b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 17 May 2017 09:32:50 +0200 Subject: [PATCH 17/34] overlayfs: use uuid_t instead of uuid_be Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Andy Shevchenko --- fs/overlayfs/copy_up.c | 2 +- fs/overlayfs/overlayfs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index d55fceb4e414..33fe6ca929f7 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -233,7 +233,7 @@ int ovl_set_attr(struct dentry *upperdentry, struct kstat *stat) return err; } -static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_be *uuid) +static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_t *uuid) { struct ovl_fh *fh; int fh_type, fh_len, dwords; diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 0623cebeefff..10863b4105fa 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -56,7 +56,7 @@ struct ovl_fh { u8 len; /* size of this header + size of fid */ u8 flags; /* OVL_FH_FLAG_* */ u8 type; /* fid_type of fid */ - uuid_be uuid; /* uuid of filesystem */ + uuid_t uuid; /* uuid of filesystem */ u8 fid[0]; /* file identifier */ } __packed; From 59b9c6291c4fcacf2e8290d79560aa78edbbbe2e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 17 May 2017 09:38:37 +0200 Subject: [PATCH 18/34] partitions/ldm: switch to use uuid_t And the uuid helpers. Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Andy Shevchenko --- block/partitions/ldm.c | 10 +++++----- block/partitions/ldm.h | 6 ++---- 2 files changed, 7 insertions(+), 9 deletions(-) diff --git a/block/partitions/ldm.c b/block/partitions/ldm.c index edcea70674c9..2a365c756648 100644 --- a/block/partitions/ldm.c +++ b/block/partitions/ldm.c @@ -115,7 +115,7 @@ static bool ldm_parse_privhead(const u8 *data, struct privhead *ph) ldm_error("PRIVHEAD disk size doesn't match real disk size"); return false; } - if (uuid_be_to_bin(data + 0x0030, (uuid_be *)ph->disk_id)) { + if (uuid_parse(data + 0x0030, &ph->disk_id)) { ldm_error("PRIVHEAD contains an invalid GUID."); return false; } @@ -234,7 +234,7 @@ static bool ldm_compare_privheads (const struct privhead *ph1, (ph1->logical_disk_size == ph2->logical_disk_size) && (ph1->config_start == ph2->config_start) && (ph1->config_size == ph2->config_size) && - !memcmp (ph1->disk_id, ph2->disk_id, GUID_SIZE)); + uuid_equal(&ph1->disk_id, &ph2->disk_id)); } /** @@ -557,7 +557,7 @@ static struct vblk * ldm_get_disk_objid (const struct ldmdb *ldb) list_for_each (item, &ldb->v_disk) { struct vblk *v = list_entry (item, struct vblk, list); - if (!memcmp (v->vblk.disk.disk_id, ldb->ph.disk_id, GUID_SIZE)) + if (uuid_equal(&v->vblk.disk.disk_id, &ldb->ph.disk_id)) return v; } @@ -892,7 +892,7 @@ static bool ldm_parse_dsk3 (const u8 *buffer, int buflen, struct vblk *vb) disk = &vb->vblk.disk; ldm_get_vstr (buffer + 0x18 + r_diskid, disk->alt_name, sizeof (disk->alt_name)); - if (uuid_be_to_bin(buffer + 0x19 + r_name, (uuid_be *)disk->disk_id)) + if (uuid_parse(buffer + 0x19 + r_name, &disk->disk_id)) return false; return true; @@ -927,7 +927,7 @@ static bool ldm_parse_dsk4 (const u8 *buffer, int buflen, struct vblk *vb) return false; disk = &vb->vblk.disk; - memcpy (disk->disk_id, buffer + 0x18 + r_name, GUID_SIZE); + uuid_copy(&disk->disk_id, (uuid_t *)(buffer + 0x18 + r_name)); return true; } diff --git a/block/partitions/ldm.h b/block/partitions/ldm.h index 374242c0971a..f4c6055df956 100644 --- a/block/partitions/ldm.h +++ b/block/partitions/ldm.h @@ -112,8 +112,6 @@ struct frag { /* VBLK Fragment handling */ /* In memory LDM database structures. */ -#define GUID_SIZE 16 - struct privhead { /* Offsets and sizes are in sectors. */ u16 ver_major; u16 ver_minor; @@ -121,7 +119,7 @@ struct privhead { /* Offsets and sizes are in sectors. */ u64 logical_disk_size; u64 config_start; u64 config_size; - u8 disk_id[GUID_SIZE]; + uuid_t disk_id; }; struct tocblock { /* We have exactly two bitmaps. */ @@ -154,7 +152,7 @@ struct vblk_dgrp { /* VBLK Disk Group */ }; struct vblk_disk { /* VBLK Disk */ - u8 disk_id[GUID_SIZE]; + uuid_t disk_id; u8 alt_name[128]; }; From 680895d6efe47332d25e49817d2d6781295c1614 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 17 May 2017 09:51:09 +0200 Subject: [PATCH 19/34] sysctl: switch to use uuid_t Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Andy Shevchenko --- kernel/sysctl_binary.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c index ece4b177052b..939a158eab11 100644 --- a/kernel/sysctl_binary.c +++ b/kernel/sysctl_binary.c @@ -1119,7 +1119,7 @@ static ssize_t bin_uuid(struct file *file, /* Only supports reads */ if (oldval && oldlen) { char buf[UUID_STRING_LEN + 1]; - uuid_be uuid; + uuid_t uuid; result = kernel_read(file, 0, buf, sizeof(buf) - 1); if (result < 0) @@ -1128,7 +1128,7 @@ static ssize_t bin_uuid(struct file *file, buf[result] = '\0'; result = -EIO; - if (uuid_be_to_bin(buf, &uuid)) + if (uuid_parse(buf, &uuid)) goto out; if (oldlen > 16) From 8e41226324e7c00f2087bfbc9f470d665e92df18 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 17 May 2017 09:54:27 +0200 Subject: [PATCH 20/34] nvme: switch to uuid_t Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Andy Shevchenko --- drivers/nvme/host/fabrics.c | 8 ++++---- drivers/nvme/host/fabrics.h | 2 +- drivers/nvme/host/fc.c | 3 +-- drivers/nvme/target/nvmet.h | 1 + include/linux/nvme-fc.h | 3 +-- include/linux/nvme.h | 3 ++- 6 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index 990e6fb32a63..c190d7e36900 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -58,7 +58,7 @@ static struct nvmf_host *nvmf_host_add(const char *hostnqn) kref_init(&host->ref); memcpy(host->nqn, hostnqn, NVMF_NQN_SIZE); - uuid_be_gen(&host->id); + uuid_gen(&host->id); list_add_tail(&host->list, &nvmf_hosts); out_unlock: @@ -75,7 +75,7 @@ static struct nvmf_host *nvmf_host_default(void) return NULL; kref_init(&host->ref); - uuid_be_gen(&host->id); + uuid_gen(&host->id); snprintf(host->nqn, NVMF_NQN_SIZE, "nqn.2014-08.org.nvmexpress:NVMf:uuid:%pUb", &host->id); @@ -395,7 +395,7 @@ int nvmf_connect_admin_queue(struct nvme_ctrl *ctrl) if (!data) return -ENOMEM; - memcpy(&data->hostid, &ctrl->opts->host->id, sizeof(uuid_be)); + uuid_copy(&data->hostid, &ctrl->opts->host->id); data->cntlid = cpu_to_le16(0xffff); strncpy(data->subsysnqn, ctrl->opts->subsysnqn, NVMF_NQN_SIZE); strncpy(data->hostnqn, ctrl->opts->host->nqn, NVMF_NQN_SIZE); @@ -454,7 +454,7 @@ int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid) if (!data) return -ENOMEM; - memcpy(&data->hostid, &ctrl->opts->host->id, sizeof(uuid_be)); + uuid_copy(&data->hostid, &ctrl->opts->host->id); data->cntlid = cpu_to_le16(ctrl->cntlid); strncpy(data->subsysnqn, ctrl->opts->subsysnqn, NVMF_NQN_SIZE); strncpy(data->hostnqn, ctrl->opts->host->nqn, NVMF_NQN_SIZE); diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h index f5a9c1fb186f..29be7600689d 100644 --- a/drivers/nvme/host/fabrics.h +++ b/drivers/nvme/host/fabrics.h @@ -36,7 +36,7 @@ struct nvmf_host { struct kref ref; struct list_head list; char nqn[NVMF_NQN_SIZE]; - uuid_be id; + uuid_t id; }; /** diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 5b14cbefb724..96b983bb44bd 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -878,8 +878,7 @@ nvme_fc_connect_admin_queue(struct nvme_fc_ctrl *ctrl, assoc_rqst->assoc_cmd.sqsize = cpu_to_be16(qsize); /* Linux supports only Dynamic controllers */ assoc_rqst->assoc_cmd.cntlid = cpu_to_be16(0xffff); - memcpy(&assoc_rqst->assoc_cmd.hostid, &ctrl->ctrl.opts->host->id, - min_t(size_t, FCNVME_ASSOC_HOSTID_LEN, sizeof(uuid_be))); + uuid_copy(&assoc_rqst->assoc_cmd.hostid, &ctrl->ctrl.opts->host->id); strncpy(assoc_rqst->assoc_cmd.hostnqn, ctrl->ctrl.opts->host->nqn, min(FCNVME_ASSOC_HOSTNQN_LEN, NVMF_NQN_SIZE)); strncpy(assoc_rqst->assoc_cmd.subnqn, ctrl->ctrl.opts->subsysnqn, diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index cfc5c7fb0ab7..8ff6e430b30a 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include diff --git a/include/linux/nvme-fc.h b/include/linux/nvme-fc.h index e997c4a49a88..bc711a10be05 100644 --- a/include/linux/nvme-fc.h +++ b/include/linux/nvme-fc.h @@ -177,7 +177,6 @@ struct fcnvme_lsdesc_rjt { }; -#define FCNVME_ASSOC_HOSTID_LEN 16 #define FCNVME_ASSOC_HOSTNQN_LEN 256 #define FCNVME_ASSOC_SUBNQN_LEN 256 @@ -191,7 +190,7 @@ struct fcnvme_lsdesc_cr_assoc_cmd { __be16 cntlid; __be16 sqsize; __be32 rsvd52; - u8 hostid[FCNVME_ASSOC_HOSTID_LEN]; + uuid_t hostid; u8 hostnqn[FCNVME_ASSOC_HOSTNQN_LEN]; u8 subnqn[FCNVME_ASSOC_SUBNQN_LEN]; u8 rsvd632[384]; diff --git a/include/linux/nvme.h b/include/linux/nvme.h index b625bacf37ef..e400a69fa1d3 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -16,6 +16,7 @@ #define _LINUX_NVME_H #include +#include /* NQN names in commands fields specified one size */ #define NVMF_NQN_FIELD_LEN 256 @@ -843,7 +844,7 @@ struct nvmf_connect_command { }; struct nvmf_connect_data { - __u8 hostid[16]; + uuid_t hostid; __le16 cntlid; char resv4[238]; char subsysnqn[NVMF_NQN_FIELD_LEN]; From bf47643389bbc1164c2615dc420ed0010264222e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 17 May 2017 09:55:26 +0200 Subject: [PATCH 21/34] scsi_debug: switch to uuid_t Signed-off-by: Christoph Hellwig Reviewed-by: Amir Goldstein Reviewed-by: Andy Shevchenko --- drivers/scsi/scsi_debug.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 17249c3650fe..35ee09644cfb 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -245,7 +245,7 @@ struct sdebug_dev_info { unsigned int channel; unsigned int target; u64 lun; - uuid_be lu_name; + uuid_t lu_name; struct sdebug_host_info *sdbg_host; unsigned long uas_bm[1]; atomic_t num_in_q; @@ -965,7 +965,7 @@ static const u64 naa3_comp_c = 0x3111111000000000ULL; static int inquiry_vpd_83(unsigned char *arr, int port_group_id, int target_dev_id, int dev_id_num, const char *dev_id_str, int dev_id_str_len, - const uuid_be *lu_name) + const uuid_t *lu_name) { int num, port_a; char b[32]; @@ -3568,7 +3568,7 @@ static void sdebug_q_cmd_wq_complete(struct work_struct *work) } static bool got_shared_uuid; -static uuid_be shared_uuid; +static uuid_t shared_uuid; static struct sdebug_dev_info *sdebug_device_create( struct sdebug_host_info *sdbg_host, gfp_t flags) @@ -3578,12 +3578,12 @@ static struct sdebug_dev_info *sdebug_device_create( devip = kzalloc(sizeof(*devip), flags); if (devip) { if (sdebug_uuid_ctl == 1) - uuid_be_gen(&devip->lu_name); + uuid_gen(&devip->lu_name); else if (sdebug_uuid_ctl == 2) { if (got_shared_uuid) devip->lu_name = shared_uuid; else { - uuid_be_gen(&shared_uuid); + uuid_gen(&shared_uuid); got_shared_uuid = true; devip->lu_name = shared_uuid; } From 2b4db79618ade14a9566455cbbea339f74674789 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Thu, 18 May 2017 15:29:33 +0300 Subject: [PATCH 22/34] tmpfs: generate random sb->s_uuid This is used by overlayfs to encode intrasystem unique file handles. Suggested-by: Miklos Szeredi Cc: Hugh Dickins Cc: Andrew Morton Signed-off-by: Amir Goldstein Signed-off-by: Christoph Hellwig --- mm/shmem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/shmem.c b/mm/shmem.c index e67d6ba4e98e..391f2dcca727 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -75,6 +75,7 @@ static struct vfsmount *shm_mnt; #include #include #include +#include #include #include @@ -3761,6 +3762,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent) #ifdef CONFIG_TMPFS_POSIX_ACL sb->s_flags |= MS_POSIXACL; #endif + uuid_gen(&sb->s_uuid); inode = shmem_get_inode(sb, NULL, S_IFDIR | sbinfo->mode, 0, VM_NORESERVE); if (!inode) From fafd3cdfbe246e280c0a18b424dfae73f5485c5d Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 23 May 2017 10:52:58 +0200 Subject: [PATCH 23/34] MAINTAINERS: add uuid entry I'll keep maintaining whatever little changed we need here, with Andy as my designated reviewer. Signed-off-by: Christoph Hellwig --- MAINTAINERS | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 7a28acd7f525..714da939a8cc 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13463,6 +13463,17 @@ W: http://en.wikipedia.org/wiki/Util-linux T: git git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git S: Maintained +UUID HELPERS +M: Christoph Hellwig +R: Andy Shevchenko +L: linux-kernel@vger.kernel.org +T: git git://git.infradead.org/users/hch/uuid.git +F: lib/uuid.c +F: lib/test_uuid.c +F: include/linux/uuid.h +F: include/uapi/linux/uuid.h +S: Maintained + UVESAFB DRIVER M: Michal Januszewski L: linux-fbdev@vger.kernel.org From 41c8bdb3ab10c1fefcac61d081e2fd9aaf8694b8 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 5 Jun 2017 19:40:42 +0300 Subject: [PATCH 24/34] acpi, nfit: Switch to use new generic UUID API There are new types and helpers that are supposed to be used in new code. As a preparation to get rid of legacy types and API functions do the conversion here. Reviewed-by: Dan Williams Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- drivers/acpi/nfit/core.c | 54 ++++++++++++++++++++-------------------- drivers/acpi/nfit/nfit.h | 3 +-- include/linux/acpi.h | 1 + 3 files changed, 29 insertions(+), 29 deletions(-) diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 656acb5d7166..d9b39d0e9d6a 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -74,11 +74,11 @@ struct nfit_table_prev { struct list_head flushes; }; -static u8 nfit_uuid[NFIT_UUID_MAX][16]; +static guid_t nfit_uuid[NFIT_UUID_MAX]; -const u8 *to_nfit_uuid(enum nfit_uuids id) +const guid_t *to_nfit_uuid(enum nfit_uuids id) { - return nfit_uuid[id]; + return &nfit_uuid[id]; } EXPORT_SYMBOL(to_nfit_uuid); @@ -222,7 +222,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, u32 offset, fw_status = 0; acpi_handle handle; unsigned int func; - const u8 *uuid; + const guid_t *guid; int rc, i; func = cmd; @@ -245,7 +245,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, cmd_mask = nvdimm_cmd_mask(nvdimm); dsm_mask = nfit_mem->dsm_mask; desc = nd_cmd_dimm_desc(cmd); - uuid = to_nfit_uuid(nfit_mem->family); + guid = to_nfit_uuid(nfit_mem->family); handle = adev->handle; } else { struct acpi_device *adev = to_acpi_dev(acpi_desc); @@ -254,7 +254,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, cmd_mask = nd_desc->cmd_mask; dsm_mask = cmd_mask; desc = nd_cmd_bus_desc(cmd); - uuid = to_nfit_uuid(NFIT_DEV_BUS); + guid = to_nfit_uuid(NFIT_DEV_BUS); handle = adev->handle; dimm_name = "bus"; } @@ -289,7 +289,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, in_buf.buffer.pointer, min_t(u32, 256, in_buf.buffer.length), true); - out_obj = acpi_evaluate_dsm(handle, uuid, 1, func, &in_obj); + out_obj = acpi_evaluate_dsm(handle, guid.b, 1, func, &in_obj); if (!out_obj) { dev_dbg(dev, "%s:%s _DSM failed cmd: %s\n", __func__, dimm_name, cmd_name); @@ -409,7 +409,7 @@ int nfit_spa_type(struct acpi_nfit_system_address *spa) int i; for (i = 0; i < NFIT_UUID_MAX; i++) - if (memcmp(to_nfit_uuid(i), spa->range_guid, 16) == 0) + if (guid_equal(to_nfit_uuid(i), (guid_t *)&spa->range_guid)) return i; return -1; } @@ -1415,7 +1415,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc, struct acpi_device *adev, *adev_dimm; struct device *dev = acpi_desc->dev; unsigned long dsm_mask; - const u8 *uuid; + const guid_t *guid; int i; int family = -1; @@ -1444,7 +1444,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc, /* * Until standardization materializes we need to consider 4 * different command sets. Note, that checking for function0 (bit0) - * tells us if any commands are reachable through this uuid. + * tells us if any commands are reachable through this GUID. */ for (i = NVDIMM_FAMILY_INTEL; i <= NVDIMM_FAMILY_MSFT; i++) if (acpi_check_dsm(adev_dimm->handle, to_nfit_uuid(i), 1, 1)) @@ -1474,9 +1474,9 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc, return 0; } - uuid = to_nfit_uuid(nfit_mem->family); + guid = to_nfit_uuid(nfit_mem->family); for_each_set_bit(i, &dsm_mask, BITS_PER_LONG) - if (acpi_check_dsm(adev_dimm->handle, uuid, 1, 1ULL << i)) + if (acpi_check_dsm(adev_dimm->handle, guid.b, 1, 1ULL << i)) set_bit(i, &nfit_mem->dsm_mask); return 0; @@ -1611,7 +1611,7 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc) static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc) { struct nvdimm_bus_descriptor *nd_desc = &acpi_desc->nd_desc; - const u8 *uuid = to_nfit_uuid(NFIT_DEV_BUS); + const guid_t *guid = to_nfit_uuid(NFIT_DEV_BUS); struct acpi_device *adev; int i; @@ -1621,7 +1621,7 @@ static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc) return; for (i = ND_CMD_ARS_CAP; i <= ND_CMD_CLEAR_ERROR; i++) - if (acpi_check_dsm(adev->handle, uuid, 1, 1ULL << i)) + if (acpi_check_dsm(adev->handle, guid.b, 1, 1ULL << i)) set_bit(i, &nd_desc->cmd_mask); } @@ -3051,19 +3051,19 @@ static __init int nfit_init(void) BUILD_BUG_ON(sizeof(struct acpi_nfit_control_region) != 80); BUILD_BUG_ON(sizeof(struct acpi_nfit_data_region) != 40); - acpi_str_to_uuid(UUID_VOLATILE_MEMORY, nfit_uuid[NFIT_SPA_VOLATILE]); - acpi_str_to_uuid(UUID_PERSISTENT_MEMORY, nfit_uuid[NFIT_SPA_PM]); - acpi_str_to_uuid(UUID_CONTROL_REGION, nfit_uuid[NFIT_SPA_DCR]); - acpi_str_to_uuid(UUID_DATA_REGION, nfit_uuid[NFIT_SPA_BDW]); - acpi_str_to_uuid(UUID_VOLATILE_VIRTUAL_DISK, nfit_uuid[NFIT_SPA_VDISK]); - acpi_str_to_uuid(UUID_VOLATILE_VIRTUAL_CD, nfit_uuid[NFIT_SPA_VCD]); - acpi_str_to_uuid(UUID_PERSISTENT_VIRTUAL_DISK, nfit_uuid[NFIT_SPA_PDISK]); - acpi_str_to_uuid(UUID_PERSISTENT_VIRTUAL_CD, nfit_uuid[NFIT_SPA_PCD]); - acpi_str_to_uuid(UUID_NFIT_BUS, nfit_uuid[NFIT_DEV_BUS]); - acpi_str_to_uuid(UUID_NFIT_DIMM, nfit_uuid[NFIT_DEV_DIMM]); - acpi_str_to_uuid(UUID_NFIT_DIMM_N_HPE1, nfit_uuid[NFIT_DEV_DIMM_N_HPE1]); - acpi_str_to_uuid(UUID_NFIT_DIMM_N_HPE2, nfit_uuid[NFIT_DEV_DIMM_N_HPE2]); - acpi_str_to_uuid(UUID_NFIT_DIMM_N_MSFT, nfit_uuid[NFIT_DEV_DIMM_N_MSFT]); + guid_parse(UUID_VOLATILE_MEMORY, &nfit_uuid[NFIT_SPA_VOLATILE]); + guid_parse(UUID_PERSISTENT_MEMORY, &nfit_uuid[NFIT_SPA_PM]); + guid_parse(UUID_CONTROL_REGION, &nfit_uuid[NFIT_SPA_DCR]); + guid_parse(UUID_DATA_REGION, &nfit_uuid[NFIT_SPA_BDW]); + guid_parse(UUID_VOLATILE_VIRTUAL_DISK, &nfit_uuid[NFIT_SPA_VDISK]); + guid_parse(UUID_VOLATILE_VIRTUAL_CD, &nfit_uuid[NFIT_SPA_VCD]); + guid_parse(UUID_PERSISTENT_VIRTUAL_DISK, &nfit_uuid[NFIT_SPA_PDISK]); + guid_parse(UUID_PERSISTENT_VIRTUAL_CD, &nfit_uuid[NFIT_SPA_PCD]); + guid_parse(UUID_NFIT_BUS, &nfit_uuid[NFIT_DEV_BUS]); + guid_parse(UUID_NFIT_DIMM, &nfit_uuid[NFIT_DEV_DIMM]); + guid_parse(UUID_NFIT_DIMM_N_HPE1, &nfit_uuid[NFIT_DEV_DIMM_N_HPE1]); + guid_parse(UUID_NFIT_DIMM_N_HPE2, &nfit_uuid[NFIT_DEV_DIMM_N_HPE2]); + guid_parse(UUID_NFIT_DIMM_N_MSFT, &nfit_uuid[NFIT_DEV_DIMM_N_MSFT]); nfit_wq = create_singlethread_workqueue("nfit"); if (!nfit_wq) diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h index 58fb7d68e04a..29bdd959517f 100644 --- a/drivers/acpi/nfit/nfit.h +++ b/drivers/acpi/nfit/nfit.h @@ -18,7 +18,6 @@ #include #include #include -#include #include #include @@ -237,7 +236,7 @@ static inline struct acpi_nfit_desc *to_acpi_desc( return container_of(nd_desc, struct acpi_nfit_desc, nd_desc); } -const u8 *to_nfit_uuid(enum nfit_uuids id); +const guid_t *to_nfit_uuid(enum nfit_uuids id); int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *nfit, acpi_size sz); void acpi_nfit_shutdown(void *data); void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 137e4a3d89c5..b0e1636ca5c3 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -39,6 +39,7 @@ #include #include #include +#include #include #include From 5b53696a30d5f52d35fec21c1da1e52520225efe Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 5 Jun 2017 19:40:43 +0300 Subject: [PATCH 25/34] ACPI / APEI: Switch to use new generic UUID API There are new types and helpers that are supposed to be used in new code. As a preparation to get rid of legacy types and API functions do the conversion here. Cc: Borislav Petkov Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- drivers/acpi/apei/ghes.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index d0855c09f32f..980515e029fa 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -431,12 +431,13 @@ static void ghes_do_proc(struct ghes *ghes, { int sev, sec_sev; struct acpi_hest_generic_data *gdata; + guid_t *sec_type; sev = ghes_severity(estatus->error_severity); apei_estatus_for_each_section(estatus, gdata) { + sec_type = (guid_t *)gdata->section_type; sec_sev = ghes_severity(gdata->error_severity); - if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, - CPER_SEC_PLATFORM_MEM)) { + if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) { struct cper_sec_mem_err *mem_err; mem_err = (struct cper_sec_mem_err *)(gdata+1); ghes_edac_report_mem_error(ghes, sev, mem_err); @@ -445,8 +446,7 @@ static void ghes_do_proc(struct ghes *ghes, ghes_handle_memory_failure(gdata, sev); } #ifdef CONFIG_ACPI_APEI_PCIEAER - else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, - CPER_SEC_PCIE)) { + else if (guid_equal(sec_type, &CPER_SEC_PCIE)) { struct cper_sec_pcie *pcie_err; pcie_err = (struct cper_sec_pcie *)(gdata+1); if (sev == GHES_SEV_RECOVERABLE && From dfcaad8faeec3208bb1905ca3c1e4fd4cef46113 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 5 Jun 2017 19:40:44 +0300 Subject: [PATCH 26/34] ACPI / bus: Switch to use new generic UUID API There are new types and helpers that are supposed to be used in new code. As a preparation to get rid of legacy types and API functions do the conversion here. Acked-by: Rafael J. Wysocki Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- drivers/acpi/bus.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 784bda663d16..042cd16265b3 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -225,13 +225,13 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) struct acpi_object_list input; union acpi_object in_params[4]; union acpi_object *out_obj; - u8 uuid[16]; + guid_t guid; u32 errors; struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; if (!context) return AE_ERROR; - if (ACPI_FAILURE(acpi_str_to_uuid(context->uuid_str, uuid))) + if (guid_parse(context->uuid_str, &guid)) return AE_ERROR; context->ret.length = ACPI_ALLOCATE_BUFFER; context->ret.pointer = NULL; @@ -241,7 +241,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) input.pointer = in_params; in_params[0].type = ACPI_TYPE_BUFFER; in_params[0].buffer.length = 16; - in_params[0].buffer.pointer = uuid; + in_params[0].buffer.pointer = (u8 *)&guid; in_params[1].type = ACPI_TYPE_INTEGER; in_params[1].integer.value = context->rev; in_params[2].type = ACPI_TYPE_INTEGER; From b7fe92999a98a9aab3c292bd44942f3bdbe04765 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 5 Jun 2017 19:40:45 +0300 Subject: [PATCH 27/34] ACPI / extlog: Switch to use new generic UUID API There are new types and helpers that are supposed to be used in new code. As a preparation to get rid of legacy types and API functions do the conversion here. Cc: Borislav Petkov Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- drivers/acpi/acpi_extlog.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c index 502ea4dc2080..193529417cc3 100644 --- a/drivers/acpi/acpi_extlog.c +++ b/drivers/acpi/acpi_extlog.c @@ -141,9 +141,9 @@ static int extlog_print(struct notifier_block *nb, unsigned long val, int cpu = mce->extcpu; struct acpi_hest_generic_status *estatus, *tmp; struct acpi_hest_generic_data *gdata; - const uuid_le *fru_id = &NULL_UUID_LE; + const guid_t *fru_id = &guid_null; char *fru_text = ""; - uuid_le *sec_type; + guid_t *sec_type; static u32 err_seq; estatus = extlog_elog_entry_check(cpu, bank); @@ -165,11 +165,11 @@ static int extlog_print(struct notifier_block *nb, unsigned long val, err_seq++; gdata = (struct acpi_hest_generic_data *)(tmp + 1); if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID) - fru_id = (uuid_le *)gdata->fru_id; + fru_id = (guid_t *)gdata->fru_id; if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT) fru_text = gdata->fru_text; - sec_type = (uuid_le *)gdata->section_type; - if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) { + sec_type = (guid_t *)gdata->section_type; + if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) { struct cper_sec_mem_err *mem = (void *)(gdata + 1); if (gdata->error_data_length >= sizeof(*mem)) trace_extlog_mem_event(mem, err_seq, fru_id, fru_text, @@ -182,17 +182,17 @@ out: static bool __init extlog_get_l1addr(void) { - u8 uuid[16]; + guid_t guid; acpi_handle handle; union acpi_object *obj; - acpi_str_to_uuid(extlog_dsm_uuid, uuid); - + if (guid_parse(extlog_dsm_uuid, &guid)) + return false; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return false; - if (!acpi_check_dsm(handle, uuid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR)) + if (!acpi_check_dsm(handle, guid.b, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR)) return false; - obj = acpi_evaluate_dsm_typed(handle, uuid, EXTLOG_DSM_REV, + obj = acpi_evaluate_dsm_typed(handle, guid.b, EXTLOG_DSM_REV, EXTLOG_FN_ADDR, NULL, ACPI_TYPE_INTEGER); if (!obj) { return false; From 94116f8126de9762751fd92731581b73b56292e5 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 5 Jun 2017 19:40:46 +0300 Subject: [PATCH 28/34] ACPI: Switch to use generic guid_t in acpi_evaluate_dsm() acpi_evaluate_dsm() and friends take a pointer to a raw buffer of 16 bytes. Instead we convert them to use guid_t type. At the same time we convert current users. acpi_str_to_uuid() becomes useless after the conversion and it's safe to get rid of it. Acked-by: Rafael J. Wysocki Cc: Borislav Petkov Acked-by: Dan Williams Cc: Amir Goldstein Reviewed-by: Jarkko Sakkinen Reviewed-by: Jani Nikula Acked-by: Jani Nikula Cc: Ben Skeggs Acked-by: Benjamin Tissoires Acked-by: Joerg Roedel Acked-by: Adrian Hunter Cc: Yisen Zhuang Acked-by: Bjorn Helgaas Acked-by: Felipe Balbi Acked-by: Mathias Nyman Reviewed-by: Heikki Krogerus Acked-by: Mark Brown Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- drivers/acpi/acpi_extlog.c | 4 ++-- drivers/acpi/bus.c | 23 ------------------- drivers/acpi/nfit/core.c | 6 ++--- drivers/acpi/utils.c | 16 ++++++------- drivers/char/tpm/tpm_crb.c | 9 ++++---- drivers/char/tpm/tpm_ppi.c | 20 +++++++--------- drivers/gpu/drm/i915/intel_acpi.c | 14 ++++------- drivers/gpu/drm/nouveau/nouveau_acpi.c | 20 ++++++++-------- .../gpu/drm/nouveau/nvkm/subdev/mxm/base.c | 9 ++++---- drivers/hid/i2c-hid/i2c-hid.c | 9 ++++---- drivers/iommu/dmar.c | 11 ++++----- drivers/mmc/host/sdhci-pci-core.c | 9 ++++---- .../ethernet/hisilicon/hns/hns_dsaf_misc.c | 15 ++++++------ drivers/pci/pci-acpi.c | 13 +++++------ drivers/pci/pci-label.c | 4 ++-- drivers/usb/dwc3/dwc3-pci.c | 10 ++++---- drivers/usb/host/xhci-pci.c | 9 ++++---- drivers/usb/misc/ucsi.c | 6 ++--- drivers/usb/typec/typec_wcove.c | 8 +++---- include/acpi/acpi_bus.h | 11 +++++---- include/linux/acpi.h | 3 +-- include/linux/pci-acpi.h | 2 +- sound/soc/intel/skylake/skl-nhlt.c | 7 +++--- tools/testing/nvdimm/test/iomap.c | 6 ++--- tools/testing/nvdimm/test/nfit.c | 2 +- tools/testing/nvdimm/test/nfit_test.h | 4 +++- 26 files changed, 106 insertions(+), 144 deletions(-) diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c index 193529417cc3..560fdae8cc59 100644 --- a/drivers/acpi/acpi_extlog.c +++ b/drivers/acpi/acpi_extlog.c @@ -190,9 +190,9 @@ static bool __init extlog_get_l1addr(void) return false; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return false; - if (!acpi_check_dsm(handle, guid.b, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR)) + if (!acpi_check_dsm(handle, &guid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR)) return false; - obj = acpi_evaluate_dsm_typed(handle, guid.b, EXTLOG_DSM_REV, + obj = acpi_evaluate_dsm_typed(handle, &guid, EXTLOG_DSM_REV, EXTLOG_FN_ADDR, NULL, ACPI_TYPE_INTEGER); if (!obj) { return false; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 042cd16265b3..5a6fbe0fcaf2 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -196,29 +196,6 @@ static void acpi_print_osc_error(acpi_handle handle, pr_debug("\n"); } -acpi_status acpi_str_to_uuid(char *str, u8 *uuid) -{ - int i; - static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21, - 24, 26, 28, 30, 32, 34}; - - if (strlen(str) != 36) - return AE_BAD_PARAMETER; - for (i = 0; i < 36; i++) { - if (i == 8 || i == 13 || i == 18 || i == 23) { - if (str[i] != '-') - return AE_BAD_PARAMETER; - } else if (!isxdigit(str[i])) - return AE_BAD_PARAMETER; - } - for (i = 0; i < 16; i++) { - uuid[i] = hex_to_bin(str[opc_map_to_uuid[i]]) << 4; - uuid[i] |= hex_to_bin(str[opc_map_to_uuid[i] + 1]); - } - return AE_OK; -} -EXPORT_SYMBOL_GPL(acpi_str_to_uuid); - acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) { acpi_status status; diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index d9b39d0e9d6a..097eff0b963d 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -289,7 +289,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, in_buf.buffer.pointer, min_t(u32, 256, in_buf.buffer.length), true); - out_obj = acpi_evaluate_dsm(handle, guid.b, 1, func, &in_obj); + out_obj = acpi_evaluate_dsm(handle, guid, 1, func, &in_obj); if (!out_obj) { dev_dbg(dev, "%s:%s _DSM failed cmd: %s\n", __func__, dimm_name, cmd_name); @@ -1476,7 +1476,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc, guid = to_nfit_uuid(nfit_mem->family); for_each_set_bit(i, &dsm_mask, BITS_PER_LONG) - if (acpi_check_dsm(adev_dimm->handle, guid.b, 1, 1ULL << i)) + if (acpi_check_dsm(adev_dimm->handle, guid, 1, 1ULL << i)) set_bit(i, &nfit_mem->dsm_mask); return 0; @@ -1621,7 +1621,7 @@ static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc) return; for (i = ND_CMD_ARS_CAP; i <= ND_CMD_CLEAR_ERROR; i++) - if (acpi_check_dsm(adev->handle, guid.b, 1, 1ULL << i)) + if (acpi_check_dsm(adev->handle, guid, 1, 1ULL << i)) set_bit(i, &nd_desc->cmd_mask); } diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 27d0dcfcf47d..b9d956c916f5 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -613,19 +613,19 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock) /** * acpi_evaluate_dsm - evaluate device's _DSM method * @handle: ACPI device handle - * @uuid: UUID of requested functions, should be 16 bytes + * @guid: GUID of requested functions, should be 16 bytes * @rev: revision number of requested function * @func: requested function number * @argv4: the function specific parameter * - * Evaluate device's _DSM method with specified UUID, revision id and + * Evaluate device's _DSM method with specified GUID, revision id and * function number. Caller needs to free the returned object. * * Though ACPI defines the fourth parameter for _DSM should be a package, * some old BIOSes do expect a buffer or an integer etc. */ union acpi_object * -acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func, +acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 func, union acpi_object *argv4) { acpi_status ret; @@ -638,7 +638,7 @@ acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func, params[0].type = ACPI_TYPE_BUFFER; params[0].buffer.length = 16; - params[0].buffer.pointer = (char *)uuid; + params[0].buffer.pointer = (u8 *)guid; params[1].type = ACPI_TYPE_INTEGER; params[1].integer.value = rev; params[2].type = ACPI_TYPE_INTEGER; @@ -666,7 +666,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm); /** * acpi_check_dsm - check if _DSM method supports requested functions. * @handle: ACPI device handle - * @uuid: UUID of requested functions, should be 16 bytes at least + * @guid: GUID of requested functions, should be 16 bytes at least * @rev: revision number of requested functions * @funcs: bitmap of requested functions * @@ -674,7 +674,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm); * functions. Currently only support 64 functions at maximum, should be * enough for now. */ -bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs) +bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs) { int i; u64 mask = 0; @@ -683,7 +683,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs) if (funcs == 0) return false; - obj = acpi_evaluate_dsm(handle, uuid, rev, 0, NULL); + obj = acpi_evaluate_dsm(handle, guid, rev, 0, NULL); if (!obj) return false; @@ -697,7 +697,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs) /* * Bit 0 indicates whether there's support for any functions other than - * function 0 for the specified UUID and revision. + * function 0 for the specified GUID and revision. */ if ((mask & 0x1) && (mask & funcs) == funcs) return true; diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c index b917b9d5f710..c378c7b15d49 100644 --- a/drivers/char/tpm/tpm_crb.c +++ b/drivers/char/tpm/tpm_crb.c @@ -27,10 +27,9 @@ #define ACPI_SIG_TPM2 "TPM2" -static const u8 CRB_ACPI_START_UUID[] = { - /* 0000 */ 0xAB, 0x6C, 0xBF, 0x6B, 0x63, 0x54, 0x14, 0x47, - /* 0008 */ 0xB7, 0xCD, 0xF0, 0x20, 0x3C, 0x03, 0x68, 0xD4 -}; +static const guid_t crb_acpi_start_guid = + GUID_INIT(0x6BBF6CAB, 0x5463, 0x4714, + 0xB7, 0xCD, 0xF0, 0x20, 0x3C, 0x03, 0x68, 0xD4); enum crb_defaults { CRB_ACPI_START_REVISION_ID = 1, @@ -266,7 +265,7 @@ static int crb_do_acpi_start(struct tpm_chip *chip) int rc; obj = acpi_evaluate_dsm(chip->acpi_dev_handle, - CRB_ACPI_START_UUID, + &crb_acpi_start_guid, CRB_ACPI_START_REVISION_ID, CRB_ACPI_START_INDEX, NULL); diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index 692a2c6ae036..86dd8521feef 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -32,20 +32,16 @@ #define PPI_VS_REQ_START 128 #define PPI_VS_REQ_END 255 -static const u8 tpm_ppi_uuid[] = { - 0xA6, 0xFA, 0xDD, 0x3D, - 0x1B, 0x36, - 0xB4, 0x4E, - 0xA4, 0x24, - 0x8D, 0x10, 0x08, 0x9D, 0x16, 0x53 -}; +static const guid_t tpm_ppi_guid = + GUID_INIT(0x3DDDFAA6, 0x361B, 0x4EB4, + 0xA4, 0x24, 0x8D, 0x10, 0x08, 0x9D, 0x16, 0x53); static inline union acpi_object * tpm_eval_dsm(acpi_handle ppi_handle, int func, acpi_object_type type, union acpi_object *argv4) { BUG_ON(!ppi_handle); - return acpi_evaluate_dsm_typed(ppi_handle, tpm_ppi_uuid, + return acpi_evaluate_dsm_typed(ppi_handle, &tpm_ppi_guid, TPM_PPI_REVISION_ID, func, argv4, type); } @@ -107,7 +103,7 @@ static ssize_t tpm_store_ppi_request(struct device *dev, * is updated with function index from SUBREQ to SUBREQ2 since PPI * version 1.1 */ - if (acpi_check_dsm(chip->acpi_dev_handle, tpm_ppi_uuid, + if (acpi_check_dsm(chip->acpi_dev_handle, &tpm_ppi_guid, TPM_PPI_REVISION_ID, 1 << TPM_PPI_FN_SUBREQ2)) func = TPM_PPI_FN_SUBREQ2; @@ -268,7 +264,7 @@ static ssize_t show_ppi_operations(acpi_handle dev_handle, char *buf, u32 start, "User not required", }; - if (!acpi_check_dsm(dev_handle, tpm_ppi_uuid, TPM_PPI_REVISION_ID, + if (!acpi_check_dsm(dev_handle, &tpm_ppi_guid, TPM_PPI_REVISION_ID, 1 << TPM_PPI_FN_GETOPR)) return -EPERM; @@ -341,12 +337,12 @@ void tpm_add_ppi(struct tpm_chip *chip) if (!chip->acpi_dev_handle) return; - if (!acpi_check_dsm(chip->acpi_dev_handle, tpm_ppi_uuid, + if (!acpi_check_dsm(chip->acpi_dev_handle, &tpm_ppi_guid, TPM_PPI_REVISION_ID, 1 << TPM_PPI_FN_VERSION)) return; /* Cache PPI version string. */ - obj = acpi_evaluate_dsm_typed(chip->acpi_dev_handle, tpm_ppi_uuid, + obj = acpi_evaluate_dsm_typed(chip->acpi_dev_handle, &tpm_ppi_guid, TPM_PPI_REVISION_ID, TPM_PPI_FN_VERSION, NULL, ACPI_TYPE_STRING); if (obj) { diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c index eb638a1e69d2..42fb436f6cdc 100644 --- a/drivers/gpu/drm/i915/intel_acpi.c +++ b/drivers/gpu/drm/i915/intel_acpi.c @@ -15,13 +15,9 @@ static struct intel_dsm_priv { acpi_handle dhandle; } intel_dsm_priv; -static const u8 intel_dsm_guid[] = { - 0xd3, 0x73, 0xd8, 0x7e, - 0xd0, 0xc2, - 0x4f, 0x4e, - 0xa8, 0x54, - 0x0f, 0x13, 0x17, 0xb0, 0x1c, 0x2c -}; +static const guid_t intel_dsm_guid = + GUID_INIT(0x7ed873d3, 0xc2d0, 0x4e4f, + 0xa8, 0x54, 0x0f, 0x13, 0x17, 0xb0, 0x1c, 0x2c); static char *intel_dsm_port_name(u8 id) { @@ -80,7 +76,7 @@ static void intel_dsm_platform_mux_info(void) int i; union acpi_object *pkg, *connector_count; - pkg = acpi_evaluate_dsm_typed(intel_dsm_priv.dhandle, intel_dsm_guid, + pkg = acpi_evaluate_dsm_typed(intel_dsm_priv.dhandle, &intel_dsm_guid, INTEL_DSM_REVISION_ID, INTEL_DSM_FN_PLATFORM_MUX_INFO, NULL, ACPI_TYPE_PACKAGE); if (!pkg) { @@ -118,7 +114,7 @@ static bool intel_dsm_pci_probe(struct pci_dev *pdev) if (!dhandle) return false; - if (!acpi_check_dsm(dhandle, intel_dsm_guid, INTEL_DSM_REVISION_ID, + if (!acpi_check_dsm(dhandle, &intel_dsm_guid, INTEL_DSM_REVISION_ID, 1 << INTEL_DSM_FN_PLATFORM_MUX_INFO)) { DRM_DEBUG_KMS("no _DSM method for intel device\n"); return false; diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index 39468c218027..7459ef9943ec 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -60,15 +60,13 @@ bool nouveau_is_v1_dsm(void) { } #ifdef CONFIG_VGA_SWITCHEROO -static const char nouveau_dsm_muid[] = { - 0xA0, 0xA0, 0x95, 0x9D, 0x60, 0x00, 0x48, 0x4D, - 0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4, -}; +static const guid_t nouveau_dsm_muid = + GUID_INIT(0x9D95A0A0, 0x0060, 0x4D48, + 0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4); -static const char nouveau_op_dsm_muid[] = { - 0xF8, 0xD8, 0x86, 0xA4, 0xDA, 0x0B, 0x1B, 0x47, - 0xA7, 0x2B, 0x60, 0x42, 0xA6, 0xB5, 0xBE, 0xE0, -}; +static const guid_t nouveau_op_dsm_muid = + GUID_INIT(0xA486D8F8, 0x0BDA, 0x471B, + 0xA7, 0x2B, 0x60, 0x42, 0xA6, 0xB5, 0xBE, 0xE0); static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t *result) { @@ -86,7 +84,7 @@ static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t * args_buff[i] = (arg >> i * 8) & 0xFF; *result = 0; - obj = acpi_evaluate_dsm_typed(handle, nouveau_op_dsm_muid, 0x00000100, + obj = acpi_evaluate_dsm_typed(handle, &nouveau_op_dsm_muid, 0x00000100, func, &argv4, ACPI_TYPE_BUFFER); if (!obj) { acpi_handle_info(handle, "failed to evaluate _DSM\n"); @@ -138,7 +136,7 @@ static int nouveau_dsm(acpi_handle handle, int func, int arg) .integer.value = arg, }; - obj = acpi_evaluate_dsm_typed(handle, nouveau_dsm_muid, 0x00000102, + obj = acpi_evaluate_dsm_typed(handle, &nouveau_dsm_muid, 0x00000102, func, &argv4, ACPI_TYPE_INTEGER); if (!obj) { acpi_handle_info(handle, "failed to evaluate _DSM\n"); @@ -259,7 +257,7 @@ static void nouveau_dsm_pci_probe(struct pci_dev *pdev, acpi_handle *dhandle_out if (!acpi_has_method(dhandle, "_DSM")) return; - supports_mux = acpi_check_dsm(dhandle, nouveau_dsm_muid, 0x00000102, + supports_mux = acpi_check_dsm(dhandle, &nouveau_dsm_muid, 0x00000102, 1 << NOUVEAU_DSM_POWER); optimus_funcs = nouveau_dsm_get_optimus_functions(dhandle); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c index e3e2f5e83815..f44682d62f75 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c @@ -81,10 +81,9 @@ mxm_shadow_dsm(struct nvkm_mxm *mxm, u8 version) { struct nvkm_subdev *subdev = &mxm->subdev; struct nvkm_device *device = subdev->device; - static char muid[] = { - 0x00, 0xA4, 0x04, 0x40, 0x7D, 0x91, 0xF2, 0x4C, - 0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65 - }; + static guid_t muid = + GUID_INIT(0x4004A400, 0x917D, 0x4CF2, + 0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65); u32 mxms_args[] = { 0x00000000 }; union acpi_object argv4 = { .buffer.type = ACPI_TYPE_BUFFER, @@ -105,7 +104,7 @@ mxm_shadow_dsm(struct nvkm_mxm *mxm, u8 version) * unless you pass in exactly the version it supports.. */ rev = (version & 0xf0) << 4 | (version & 0x0f); - obj = acpi_evaluate_dsm(handle, muid, rev, 0x00000010, &argv4); + obj = acpi_evaluate_dsm(handle, &muid, rev, 0x00000010, &argv4); if (!obj) { nvkm_debug(subdev, "DSM MXMS failed\n"); return false; diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index fb55fb4c39fc..04015032a35a 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -872,10 +872,9 @@ static int i2c_hid_fetch_hid_descriptor(struct i2c_hid *ihid) static int i2c_hid_acpi_pdata(struct i2c_client *client, struct i2c_hid_platform_data *pdata) { - static u8 i2c_hid_guid[] = { - 0xF7, 0xF6, 0xDF, 0x3C, 0x67, 0x42, 0x55, 0x45, - 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE, - }; + static guid_t i2c_hid_guid = + GUID_INIT(0x3CDFF6F7, 0x4267, 0x4555, + 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE); union acpi_object *obj; struct acpi_device *adev; acpi_handle handle; @@ -884,7 +883,7 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client, if (!handle || acpi_bus_get_device(handle, &adev)) return -ENODEV; - obj = acpi_evaluate_dsm_typed(handle, i2c_hid_guid, 1, 1, NULL, + obj = acpi_evaluate_dsm_typed(handle, &i2c_hid_guid, 1, 1, NULL, ACPI_TYPE_INTEGER); if (!obj) { dev_err(&client->dev, "device _DSM execution failed\n"); diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index cbf7763d8091..c8b0329c85d2 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1808,10 +1808,9 @@ IOMMU_INIT_POST(detect_intel_iommu); * for Directed-IO Architecture Specifiction, Rev 2.2, Section 8.8 * "Remapping Hardware Unit Hot Plug". */ -static u8 dmar_hp_uuid[] = { - /* 0000 */ 0xA6, 0xA3, 0xC1, 0xD8, 0x9B, 0xBE, 0x9B, 0x4C, - /* 0008 */ 0x91, 0xBF, 0xC3, 0xCB, 0x81, 0xFC, 0x5D, 0xAF -}; +static guid_t dmar_hp_guid = + GUID_INIT(0xD8C1A3A6, 0xBE9B, 0x4C9B, + 0x91, 0xBF, 0xC3, 0xCB, 0x81, 0xFC, 0x5D, 0xAF); /* * Currently there's only one revision and BIOS will not check the revision id, @@ -1824,7 +1823,7 @@ static u8 dmar_hp_uuid[] = { static inline bool dmar_detect_dsm(acpi_handle handle, int func) { - return acpi_check_dsm(handle, dmar_hp_uuid, DMAR_DSM_REV_ID, 1 << func); + return acpi_check_dsm(handle, &dmar_hp_guid, DMAR_DSM_REV_ID, 1 << func); } static int dmar_walk_dsm_resource(acpi_handle handle, int func, @@ -1843,7 +1842,7 @@ static int dmar_walk_dsm_resource(acpi_handle handle, int func, if (!dmar_detect_dsm(handle, func)) return 0; - obj = acpi_evaluate_dsm_typed(handle, dmar_hp_uuid, DMAR_DSM_REV_ID, + obj = acpi_evaluate_dsm_typed(handle, &dmar_hp_guid, DMAR_DSM_REV_ID, func, NULL, ACPI_TYPE_BUFFER); if (!obj) return -ENODEV; diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index 92fc3f7c538d..9577beb278e7 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -404,10 +404,9 @@ struct intel_host { bool d3_retune; }; -const u8 intel_dsm_uuid[] = { - 0xA5, 0x3E, 0xC1, 0xF6, 0xCD, 0x65, 0x1F, 0x46, - 0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61, -}; +const guid_t intel_dsm_guid = + GUID_INIT(0xF6C13EA5, 0x65CD, 0x461F, + 0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61); static int __intel_dsm(struct intel_host *intel_host, struct device *dev, unsigned int fn, u32 *result) @@ -416,7 +415,7 @@ static int __intel_dsm(struct intel_host *intel_host, struct device *dev, int err = 0; size_t len; - obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), intel_dsm_uuid, 0, fn, NULL); + obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_dsm_guid, 0, fn, NULL); if (!obj) return -EOPNOTSUPP; diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c index e13aa064a8e9..6b15a507999c 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c @@ -29,10 +29,9 @@ enum _dsm_rst_type { HNS_ROCE_RESET_FUNC = 0x7, }; -const u8 hns_dsaf_acpi_dsm_uuid[] = { - 0x1A, 0xAA, 0x85, 0x1A, 0x93, 0xE2, 0x5E, 0x41, - 0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A -}; +const guid_t hns_dsaf_acpi_dsm_guid = + GUID_INIT(0x1A85AA1A, 0xE293, 0x415E, + 0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A); static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val) { @@ -151,7 +150,7 @@ static void hns_dsaf_acpi_srst_by_port(struct dsaf_device *dsaf_dev, u8 op_type, argv4.package.elements = obj_args; obj = acpi_evaluate_dsm(ACPI_HANDLE(dsaf_dev->dev), - hns_dsaf_acpi_dsm_uuid, 0, op_type, &argv4); + &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4); if (!obj) { dev_warn(dsaf_dev->dev, "reset port_type%d port%d fail!", port_type, port); @@ -434,7 +433,7 @@ static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb) argv4.package.elements = &obj_args, obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev), - hns_dsaf_acpi_dsm_uuid, 0, + &hns_dsaf_acpi_dsm_guid, 0, HNS_OP_GET_PORT_TYPE_FUNC, &argv4); if (!obj || obj->type != ACPI_TYPE_INTEGER) @@ -474,7 +473,7 @@ int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt) argv4.package.elements = &obj_args, obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev), - hns_dsaf_acpi_dsm_uuid, 0, + &hns_dsaf_acpi_dsm_guid, 0, HNS_OP_GET_SFP_STAT_FUNC, &argv4); if (!obj || obj->type != ACPI_TYPE_INTEGER) @@ -565,7 +564,7 @@ hns_mac_config_sds_loopback_acpi(struct hns_mac_cb *mac_cb, bool en) argv4.package.elements = obj_args; obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dsaf_dev->dev), - hns_dsaf_acpi_dsm_uuid, 0, + &hns_dsaf_acpi_dsm_guid, 0, HNS_OP_SERDES_LP_FUNC, &argv4); if (!obj) { dev_warn(mac_cb->dsaf_dev->dev, "set port%d serdes lp fail!", diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 001860361434..47070cff508c 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -21,13 +21,12 @@ #include "pci.h" /* - * The UUID is defined in the PCI Firmware Specification available here: + * The GUID is defined in the PCI Firmware Specification available here: * https://www.pcisig.com/members/downloads/pcifw_r3_1_13Dec10.pdf */ -const u8 pci_acpi_dsm_uuid[] = { - 0xd0, 0x37, 0xc9, 0xe5, 0x53, 0x35, 0x7a, 0x4d, - 0x91, 0x17, 0xea, 0x4d, 0x19, 0xc3, 0x43, 0x4d -}; +const guid_t pci_acpi_dsm_guid = + GUID_INIT(0xe5c937d0, 0x3553, 0x4d7a, + 0x91, 0x17, 0xea, 0x4d, 0x19, 0xc3, 0x43, 0x4d); #if defined(CONFIG_PCI_QUIRKS) && defined(CONFIG_ARM64) static int acpi_get_rc_addr(struct acpi_device *adev, struct resource *res) @@ -680,7 +679,7 @@ void acpi_pci_add_bus(struct pci_bus *bus) if (!pci_is_root_bus(bus)) return; - obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), pci_acpi_dsm_uuid, 3, + obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 3, RESET_DELAY_DSM, NULL); if (!obj) return; @@ -745,7 +744,7 @@ static void pci_acpi_optimize_delay(struct pci_dev *pdev, if (bridge->ignore_reset_delay) pdev->d3cold_delay = 0; - obj = acpi_evaluate_dsm(handle, pci_acpi_dsm_uuid, 3, + obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 3, FUNCTION_DELAY_DSM, NULL); if (!obj) return; diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c index 51357377efbc..2d8db3ead6e8 100644 --- a/drivers/pci/pci-label.c +++ b/drivers/pci/pci-label.c @@ -172,7 +172,7 @@ static int dsm_get_label(struct device *dev, char *buf, if (!handle) return -1; - obj = acpi_evaluate_dsm(handle, pci_acpi_dsm_uuid, 0x2, + obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 0x2, DEVICE_LABEL_DSM, NULL); if (!obj) return -1; @@ -212,7 +212,7 @@ static bool device_has_dsm(struct device *dev) if (!handle) return false; - return !!acpi_check_dsm(handle, pci_acpi_dsm_uuid, 0x2, + return !!acpi_check_dsm(handle, &pci_acpi_dsm_guid, 0x2, 1 << DEVICE_LABEL_DSM); } diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 84a2cebfc712..fe851544d7fb 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -42,7 +42,7 @@ #define PCI_DEVICE_ID_INTEL_CNPLP 0x9dee #define PCI_DEVICE_ID_INTEL_CNPH 0xa36e -#define PCI_INTEL_BXT_DSM_UUID "732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511" +#define PCI_INTEL_BXT_DSM_GUID "732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511" #define PCI_INTEL_BXT_FUNC_PMU_PWR 4 #define PCI_INTEL_BXT_STATE_D0 0 #define PCI_INTEL_BXT_STATE_D3 3 @@ -51,14 +51,14 @@ * struct dwc3_pci - Driver private structure * @dwc3: child dwc3 platform_device * @pci: our link to PCI bus - * @uuid: _DSM UUID + * @guid: _DSM GUID * @has_dsm_for_pm: true for devices which need to run _DSM on runtime PM */ struct dwc3_pci { struct platform_device *dwc3; struct pci_dev *pci; - u8 uuid[16]; + guid_t guid; unsigned int has_dsm_for_pm:1; }; @@ -120,7 +120,7 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc) if (pdev->device == PCI_DEVICE_ID_INTEL_BXT || pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) { - acpi_str_to_uuid(PCI_INTEL_BXT_DSM_UUID, dwc->uuid); + guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid); dwc->has_dsm_for_pm = true; } @@ -292,7 +292,7 @@ static int dwc3_pci_dsm(struct dwc3_pci *dwc, int param) tmp.type = ACPI_TYPE_INTEGER; tmp.integer.value = param; - obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), dwc->uuid, + obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), &dwc->guid, 1, PCI_INTEL_BXT_FUNC_PMU_PWR, &argv4); if (!obj) { dev_err(&dwc->pci->dev, "failed to evaluate _DSM\n"); diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index fcf1f3f63e7a..4842be5687a7 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -213,13 +213,12 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) #ifdef CONFIG_ACPI static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { - static const u8 intel_dsm_uuid[] = { - 0xb7, 0x0c, 0x34, 0xac, 0x01, 0xe9, 0xbf, 0x45, - 0xb7, 0xe6, 0x2b, 0x34, 0xec, 0x93, 0x1e, 0x23, - }; + static const guid_t intel_dsm_guid = + GUID_INIT(0xac340cb7, 0xe901, 0x45bf, + 0xb7, 0xe6, 0x2b, 0x34, 0xec, 0x93, 0x1e, 0x23); union acpi_object *obj; - obj = acpi_evaluate_dsm(ACPI_HANDLE(&dev->dev), intel_dsm_uuid, 3, 1, + obj = acpi_evaluate_dsm(ACPI_HANDLE(&dev->dev), &intel_dsm_guid, 3, 1, NULL); ACPI_FREE(obj); } diff --git a/drivers/usb/misc/ucsi.c b/drivers/usb/misc/ucsi.c index 07397bddefa3..81251aaa20f9 100644 --- a/drivers/usb/misc/ucsi.c +++ b/drivers/usb/misc/ucsi.c @@ -55,13 +55,13 @@ struct ucsi { static int ucsi_acpi_cmd(struct ucsi *ucsi, struct ucsi_control *ctrl) { - uuid_le uuid = UUID_LE(0x6f8398c2, 0x7ca4, 0x11e4, - 0xad, 0x36, 0x63, 0x10, 0x42, 0xb5, 0x00, 0x8f); + guid_t guid = GUID_INIT(0x6f8398c2, 0x7ca4, 0x11e4, + 0xad, 0x36, 0x63, 0x10, 0x42, 0xb5, 0x00, 0x8f); union acpi_object *obj; ucsi->data->ctrl.raw_cmd = ctrl->raw_cmd; - obj = acpi_evaluate_dsm(ACPI_HANDLE(ucsi->dev), uuid.b, 1, 1, NULL); + obj = acpi_evaluate_dsm(ACPI_HANDLE(ucsi->dev), &guid, 1, 1, NULL); if (!obj) { dev_err(ucsi->dev, "%s: failed to evaluate _DSM\n", __func__); return -EIO; diff --git a/drivers/usb/typec/typec_wcove.c b/drivers/usb/typec/typec_wcove.c index d5a7b21fa3f1..c2ce25289027 100644 --- a/drivers/usb/typec/typec_wcove.c +++ b/drivers/usb/typec/typec_wcove.c @@ -105,8 +105,8 @@ enum wcove_typec_role { WCOVE_ROLE_DEVICE, }; -static uuid_le uuid = UUID_LE(0x482383f0, 0x2876, 0x4e49, - 0x86, 0x85, 0xdb, 0x66, 0x21, 0x1a, 0xf0, 0x37); +static guid_t guid = GUID_INIT(0x482383f0, 0x2876, 0x4e49, + 0x86, 0x85, 0xdb, 0x66, 0x21, 0x1a, 0xf0, 0x37); static int wcove_typec_func(struct wcove_typec *wcove, enum wcove_typec_func func, int param) @@ -118,7 +118,7 @@ static int wcove_typec_func(struct wcove_typec *wcove, tmp.type = ACPI_TYPE_INTEGER; tmp.integer.value = param; - obj = acpi_evaluate_dsm(ACPI_HANDLE(wcove->dev), uuid.b, 1, func, + obj = acpi_evaluate_dsm(ACPI_HANDLE(wcove->dev), &guid, 1, func, &argv4); if (!obj) { dev_err(wcove->dev, "%s: failed to evaluate _DSM\n", __func__); @@ -314,7 +314,7 @@ static int wcove_typec_probe(struct platform_device *pdev) if (ret) return ret; - if (!acpi_check_dsm(ACPI_HANDLE(&pdev->dev), uuid.b, 0, 0x1f)) { + if (!acpi_check_dsm(ACPI_HANDLE(&pdev->dev), &guid, 0, 0x1f)) { dev_err(&pdev->dev, "Missing _DSM functions\n"); return -ENODEV; } diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 197f3fffc9a7..ea7df16e71a7 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -61,17 +61,18 @@ bool acpi_ata_match(acpi_handle handle); bool acpi_bay_match(acpi_handle handle); bool acpi_dock_match(acpi_handle handle); -bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs); -union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, +bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs); +union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 func, union acpi_object *argv4); static inline union acpi_object * -acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, u64 rev, u64 func, - union acpi_object *argv4, acpi_object_type type) +acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev, + u64 func, union acpi_object *argv4, + acpi_object_type type) { union acpi_object *obj; - obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); + obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4); if (obj && obj->type != type) { ACPI_FREE(obj); obj = NULL; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index b0e1636ca5c3..ab19365c905f 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -458,7 +458,6 @@ struct acpi_osc_context { struct acpi_buffer ret; /* free by caller if success */ }; -acpi_status acpi_str_to_uuid(char *str, u8 *uuid); acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ @@ -742,7 +741,7 @@ static inline bool acpi_driver_match_device(struct device *dev, } static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, - const u8 *uuid, + const guid_t *guid, int rev, int func, union acpi_object *argv4) { diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 7a4e83a8c89c..dd86c97f2454 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -105,7 +105,7 @@ static inline void acpiphp_remove_slots(struct pci_bus *bus) { } static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { } #endif -extern const u8 pci_acpi_dsm_uuid[]; +extern const guid_t pci_acpi_dsm_guid; #define DEVICE_LABEL_DSM 0x07 #define RESET_DELAY_DSM 0x08 #define FUNCTION_DELAY_DSM 0x09 diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c index e3f06672fd6d..e7d766d56c8e 100644 --- a/sound/soc/intel/skylake/skl-nhlt.c +++ b/sound/soc/intel/skylake/skl-nhlt.c @@ -21,8 +21,9 @@ #include "skl.h" /* Unique identification for getting NHLT blobs */ -static u8 OSC_UUID[16] = {0x6E, 0x88, 0x9F, 0xA6, 0xEB, 0x6C, 0x94, 0x45, - 0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53}; +static guid_t osc_guid = + GUID_INIT(0xA69F886E, 0x6CEB, 0x4594, + 0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53); struct nhlt_acpi_table *skl_nhlt_init(struct device *dev) { @@ -37,7 +38,7 @@ struct nhlt_acpi_table *skl_nhlt_init(struct device *dev) return NULL; } - obj = acpi_evaluate_dsm(handle, OSC_UUID, 1, 1, NULL); + obj = acpi_evaluate_dsm(handle, &osc_guid, 1, 1, NULL); if (obj && obj->type == ACPI_TYPE_BUFFER) { nhlt_ptr = (struct nhlt_resource_desc *)obj->buffer.pointer; nhlt_table = (struct nhlt_acpi_table *) diff --git a/tools/testing/nvdimm/test/iomap.c b/tools/testing/nvdimm/test/iomap.c index 64cae1a5deff..e1f75a1914a1 100644 --- a/tools/testing/nvdimm/test/iomap.c +++ b/tools/testing/nvdimm/test/iomap.c @@ -370,7 +370,7 @@ acpi_status __wrap_acpi_evaluate_object(acpi_handle handle, acpi_string path, } EXPORT_SYMBOL(__wrap_acpi_evaluate_object); -union acpi_object * __wrap_acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, +union acpi_object * __wrap_acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 func, union acpi_object *argv4) { union acpi_object *obj = ERR_PTR(-ENXIO); @@ -379,11 +379,11 @@ union acpi_object * __wrap_acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, rcu_read_lock(); ops = list_first_or_null_rcu(&iomap_head, typeof(*ops), list); if (ops) - obj = ops->evaluate_dsm(handle, uuid, rev, func, argv4); + obj = ops->evaluate_dsm(handle, guid, rev, func, argv4); rcu_read_unlock(); if (IS_ERR(obj)) - return acpi_evaluate_dsm(handle, uuid, rev, func, argv4); + return acpi_evaluate_dsm(handle, guid, rev, func, argv4); return obj; } EXPORT_SYMBOL(__wrap_acpi_evaluate_dsm); diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index c2187178fb13..28859da78edf 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -1559,7 +1559,7 @@ static unsigned long nfit_ctl_handle; union acpi_object *result; static union acpi_object *nfit_test_evaluate_dsm(acpi_handle handle, - const u8 *uuid, u64 rev, u64 func, union acpi_object *argv4) + const guid_t *guid, u64 rev, u64 func, union acpi_object *argv4) { if (handle != &nfit_ctl_handle) return ERR_PTR(-ENXIO); diff --git a/tools/testing/nvdimm/test/nfit_test.h b/tools/testing/nvdimm/test/nfit_test.h index f54c0032c6ff..d3d63dd5ed38 100644 --- a/tools/testing/nvdimm/test/nfit_test.h +++ b/tools/testing/nvdimm/test/nfit_test.h @@ -13,6 +13,7 @@ #ifndef __NFIT_TEST_H__ #define __NFIT_TEST_H__ #include +#include #include #include @@ -36,7 +37,8 @@ typedef void *acpi_handle; typedef struct nfit_test_resource *(*nfit_test_lookup_fn)(resource_size_t); typedef union acpi_object *(*nfit_test_evaluate_dsm_fn)(acpi_handle handle, - const u8 *uuid, u64 rev, u64 func, union acpi_object *argv4); + const guid_t *guid, u64 rev, u64 func, + union acpi_object *argv4); void __iomem *__wrap_ioremap_nocache(resource_size_t offset, unsigned long size); void __wrap_iounmap(volatile void __iomem *addr); From bcbc2265f269cc57924371e3bce8c3220d0270c5 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 8 Jun 2017 09:02:20 +0200 Subject: [PATCH 29/34] acpi: always include uuid.h Without this the build will fail for !CONFIG_ACPI builds on x86. Fixes: 94116f81 ("ACPI: Switch to use generic guid_t in acpi_evaluate_dsm()") Signed-off-by: Christoph Hellwig --- include/linux/acpi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/acpi.h b/include/linux/acpi.h index ab19365c905f..cafdfb84ca28 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -26,6 +26,7 @@ #include #include #include +#include #ifndef _LINUX #define _LINUX @@ -39,7 +40,6 @@ #include #include #include -#include #include #include From f4c19ac9c24c5c5dcab4e961e4d7f8f5709c650e Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Fri, 9 Jun 2017 11:33:06 +0300 Subject: [PATCH 30/34] thermal: int340x_thermal: Switch to use new generic UUID API There are new types and helpers that are supposed to be used in new code. As a preparation to get rid of legacy types and API functions do the conversion here. The conversion fixes a potential bug in int340x_thermal as well since we have to use memcmp() on binary data. Acked-by: Zhang Rui Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- drivers/thermal/int340x_thermal/int3400_thermal.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c index 9413c4abf0b9..fb7284153878 100644 --- a/drivers/thermal/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/int340x_thermal/int3400_thermal.c @@ -23,7 +23,7 @@ enum int3400_thermal_uuid { INT3400_THERMAL_MAXIMUM_UUID, }; -static u8 *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { +static const char *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { "42A441D6-AE6A-462b-A84B-4A8CE79027D3", "3A95C389-E4B8-4629-A526-C52C88626BAE", "97C68AE7-15FA-499c-B8C9-5DA81D606E0A", @@ -141,10 +141,10 @@ static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv) } for (j = 0; j < INT3400_THERMAL_MAXIMUM_UUID; j++) { - u8 uuid[16]; + guid_t guid; - acpi_str_to_uuid(int3400_thermal_uuids[j], uuid); - if (!strncmp(uuid, objb->buffer.pointer, 16)) { + guid_parse(int3400_thermal_uuids[j], &guid); + if (guid_equal(objb->buffer.pointer, &guid)) { priv->uuid_bitmap |= (1 << j); break; } From 87085ff2e90ecfa91f8bb0cb0ce19ea661bd6f83 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 9 Jun 2017 16:36:50 +0200 Subject: [PATCH 31/34] thermal: int340x_thermal: fix compile after the UUID API switch Fix the compile after the switch to the UUID API in commit f4c19ac9 ("thermal: int340x_thermal: Switch to use new generic UUID API"). Signed-off-by: Christoph Hellwig --- drivers/thermal/int340x_thermal/int3400_thermal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c index fb7284153878..a9ec94ed7a42 100644 --- a/drivers/thermal/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/int340x_thermal/int3400_thermal.c @@ -23,7 +23,7 @@ enum int3400_thermal_uuid { INT3400_THERMAL_MAXIMUM_UUID, }; -static const char *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { +static char *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { "42A441D6-AE6A-462b-A84B-4A8CE79027D3", "3A95C389-E4B8-4629-A526-C52C88626BAE", "97C68AE7-15FA-499c-B8C9-5DA81D606E0A", @@ -144,7 +144,7 @@ static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv) guid_t guid; guid_parse(int3400_thermal_uuids[j], &guid); - if (guid_equal(objb->buffer.pointer, &guid)) { + if (guid_equal((guid_t *)objb->buffer.pointer, &guid)) { priv->uuid_bitmap |= (1 << j); break; } From 63709fd4296221aa4ebd06230bce3eed70ddd927 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Fri, 16 Jun 2017 21:13:38 +0300 Subject: [PATCH 32/34] uuid: Take const on input of uuid_is_null() and guid_is_null() The null check functions do not and must not modify contents of the UUID or GUID supplied. Mark argument explicitly to reflect that. Signed-off-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- include/linux/uuid.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/uuid.h b/include/linux/uuid.h index 75f7182d5360..d1defe4ab167 100644 --- a/include/linux/uuid.h +++ b/include/linux/uuid.h @@ -48,7 +48,7 @@ static inline void guid_copy(guid_t *dst, const guid_t *src) memcpy(dst, src, sizeof(guid_t)); } -static inline bool guid_is_null(guid_t *guid) +static inline bool guid_is_null(const guid_t *guid) { return guid_equal(guid, &guid_null); } @@ -63,7 +63,7 @@ static inline void uuid_copy(uuid_t *dst, const uuid_t *src) memcpy(dst, src, sizeof(uuid_t)); } -static inline bool uuid_is_null(uuid_t *uuid) +static inline bool uuid_is_null(const uuid_t *uuid) { return uuid_equal(uuid, &uuid_null); } From c37f69ff2e6a4cfe6794c825b3b5b59e9429bdec Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 19 Jun 2017 11:55:21 +0100 Subject: [PATCH 33/34] mmc: sdhci-pci: make guid intel_dsm_guid static The guid intel_dsm_guid does not need to be in global scope, so make it static. Signed-off-by: Colin Ian King Acked-by: Adrian Hunter Acked-by: Ulf Hansson Signed-off-by: Christoph Hellwig --- drivers/mmc/host/sdhci-pci-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index 9577beb278e7..18957fea82ff 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -404,7 +404,7 @@ struct intel_host { bool d3_retune; }; -const guid_t intel_dsm_guid = +static const guid_t intel_dsm_guid = GUID_INIT(0xF6C13EA5, 0x65CD, 0x461F, 0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61); From b86a496a42064e2a864bae31306e0c78eced2a3b Mon Sep 17 00:00:00 2001 From: kbuild test robot Date: Thu, 22 Jun 2017 23:45:23 +0800 Subject: [PATCH 34/34] ACPI: hns_dsaf_acpi_dsm_guid can be static Signed-off-by: Fengguang Wu Reviewed-by: Andy Shevchenko Signed-off-by: Christoph Hellwig --- drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c index 6b15a507999c..7a8addda726e 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c @@ -29,7 +29,7 @@ enum _dsm_rst_type { HNS_ROCE_RESET_FUNC = 0x7, }; -const guid_t hns_dsaf_acpi_dsm_guid = +static const guid_t hns_dsaf_acpi_dsm_guid = GUID_INIT(0x1A85AA1A, 0xE293, 0x415E, 0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A);