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Eric Biggers 877b5691f2 crypto: shash - remove shash_desc::flags 
The flags field in 'struct shash_desc' never actually does anything.
The only ostensibly supported flag is CRYPTO_TFM_REQ_MAY_SLEEP.
However, no shash algorithm ever sleeps, making this flag a no-op.

With this being the case, inevitably some users who can't sleep wrongly
pass MAY_SLEEP.  These would all need to be fixed if any shash algorithm
actually started sleeping.  For example, the shash_ahash_*() functions,
which wrap a shash algorithm with the ahash API, pass through MAY_SLEEP
from the ahash API to the shash API.  However, the shash functions are
called under kmap_atomic(), so actually they're assumed to never sleep.

Even if it turns out that some users do need preemption points while
hashing large buffers, we could easily provide a helper function
crypto_shash_update_large() which divides the data into smaller chunks
and calls crypto_shash_update() and cond_resched() for each chunk.  It's
not necessary to have a flag in 'struct shash_desc', nor is it necessary
to make individual shash algorithms aware of this at all.

Therefore, remove shash_desc::flags, and document that the
crypto_shash_*() functions can be called from any context.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 		2019-04-25 15:38:12 +08:00
..
6lowpan 6lowpan: fix debugfs_simple_attr.cocci warnings 2019-01-22 09:51:19 +01:00
9p 9p/net: fix memory leak in p9_client_create 2019-03-13 11:50:04 +01:00
802
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8021q net: Remove switchdev.h inclusion from team/bond/vlan 2019-02-24 17:40:46 -08:00
appletalk appletalk: Fix use-after-free in atalk_proc_exit 2019-03-03 13:01:49 -08:00
atm net: atm: Add another IS_ENABLED(CONFIG_COMPAT) in atm_dev_ioctl 2019-03-07 10:14:50 -08:00
ax25 ax25: fix possible use-after-free 2019-01-23 11:18:00 -08:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-15 12:38:38 -08:00
bluetooth crypto: shash - remove shash_desc::flags 2019-04-25 15:38:12 +08:00
bpf bpf: fix warning about using plain integer as NULL 2019-03-08 21:17:07 +01:00
bpfilter bpfilter: re-add header search paths to tools include to fix build error 2019-02-23 13:34:40 -08:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2019-03-02 14:01:04 -08:00
caif net: caif: use skb helpers instead of open-coding them 2019-02-17 11:01:17 -08:00
can can: bcm: check timer values before ktime conversion 2019-01-22 11:33:46 +01:00
ceph libceph: use struct_size() for kmalloc() in crush_decode() 2019-03-05 18:55:17 +01:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-11 08:54:01 -07:00
dcb net: dcb: Add priority-to-DSCP map getters 2018-07-27 13:17:50 -07:00
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-08 15:00:17 -08:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-29 21:18:54 -08:00
dns_resolver dns: Allow the dns resolver to retrieve a server set 2018-10-04 09:40:52 -07:00
dsa net: dsa: Use prepare/commit phase in dsa_slave_vlan_rx_add_vid() 2019-03-03 20:45:52 -08:00
ethernet net/ethernet: Add parse_protocol header_ops support 2019-02-22 12:55:31 -08:00
hsr net/hsr: fix possible crash in add_timer() 2019-03-07 11:02:08 -08:00
ieee802154 net: remove unused struct inet_frag_queue.fragments field 2019-02-26 08:27:05 -08:00
ife
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ipv4 tcp: Don't access TCP_SKB_CB before initializing it 2019-03-11 15:36:49 -07:00
ipv6 net: sit: fix UBSAN Undefined behaviour in check_6rd 2019-03-11 10:32:45 -07:00
iucv iucv: Remove SKB list assumptions. 2018-11-10 16:55:11 -08:00
kcm kcm: Remove unnecessary SLAB_PANIC for kmem_cache_create() in kcm_init 2019-02-23 13:46:24 -08:00
key af_key: unconditionally clone on broadcast 2019-02-12 10:36:42 +01:00
l2tp l2tp: fix infoleak in l2tp_ip6_recvmsg() 2019-03-13 14:19:35 -07:00
l3mdev l3mdev: add function to retreive upper master 2018-12-03 14:15:26 -08:00
lapb
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llc llc: do not use sk_eat_skb() 2018-10-22 19:59:20 -07:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-02-24 12:06:19 -08:00
mac802154 mac802154: Remove VLA usage of skcipher 2018-09-28 12:46:07 +08:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-02 12:54:35 -08:00
ncsi net/ncsi: Add NCSI Mellanox OEM command 2018-11-27 16:37:20 -08:00
netfilter netfilter: nf_tables: return immediately on empty commit 2019-03-11 20:01:20 +01:00
netlabel netlabel: fix out-of-bounds memory accesses 2019-02-27 21:45:24 -08:00
netlink rhashtable: Remove obsolete rhashtable_walk_init function 2019-02-22 13:49:00 +01:00
netrom netrom: switch to sock timer API 2019-01-27 10:38:04 -08:00
nfc net: nfc: Fix NULL dereference on nfc_llcp_build_tlv fails 2019-02-27 12:47:08 -08:00
nsh
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openvswitch openvswitch: convert to kvmalloc 2019-03-12 10:04:02 -07:00
packet net/packet: Remove redundant skb->protocol set 2019-02-22 12:55:31 -08:00
phonet phonet: fix building with clang 2019-02-21 16:23:56 -08:00
psample
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qrtr mm: replace all open encodings for NUMA_NO_NODE 2019-03-05 21:07:14 -08:00
rds 5.1 Merge Window Pull Request 2019-03-09 15:53:03 -08:00
rfkill rfkill: gpio: Remove unused include 2018-12-18 13:13:56 +01:00
rose net: rose: add missing dev_put() on error in rose_bind 2019-02-19 13:22:46 -08:00
rxrpc rxrpc: Fix client call queueing, waiting for channel 2019-03-08 18:24:53 -08:00
sched net_sched: return correct value for *notify* functions 2019-03-13 13:48:27 -07:00
sctp crypto: shash - remove shash_desc::flags 2019-04-25 15:38:12 +08:00
smc Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-03-12 13:27:20 -07:00
strparser bpf, sockmap: convert to generic sk_msg interface 2018-10-15 12:23:19 -07:00
sunrpc crypto: shash - remove shash_desc::flags 2019-04-25 15:38:12 +08:00
switchdev switchdev: Remove unused transaction item queue 2019-03-01 21:35:19 -08:00
tipc tipc: fix RDM/DGRAM connect() regression 2019-03-05 12:49:13 -08:00
tls net/tls: Inform user space about send buffer availability 2019-03-13 14:16:44 -07:00
unix io_uring-2019-03-06 2019-03-08 14:48:40 -08:00
vmw_vsock vsock/virtio: fix kernel panic from virtio_transport_reset_no_sock 2019-03-08 15:15:44 -08:00
wimax
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wireless crypto: shash - remove shash_desc::flags 2019-04-25 15:38:12 +08:00
x25 net/x25: reset state in x25_connect() 2019-03-11 15:40:14 -07:00
xdp xsk: fix to reject invalid options in Tx descriptor 2019-03-08 21:17:06 +01:00
xfrm xfrm: Fix inbound traffic via XFRM interfaces across network namespaces 2019-02-18 10:58:54 +01:00
Kconfig net: devlink: turn devlink into a built-in 2019-02-26 08:49:05 -08:00
Makefile net: split out functions related to registering inflight socket files 2019-02-28 08:24:23 -07:00
compat.c Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-05 14:08:26 -08:00
socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-02 12:54:35 -08:00
sysctl_net.c
…