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Author SHA1 Message Date
Linus Torvalds 9716e57a01 Peter Zijlstras rework of atomics and fallbacks. This solves two problems:
1) Compilers uninline small atomic_* static inline functions which can
      expose them to instrumentation.
 
   2) The instrumentation of atomic primitives was done at the architecture
      level while composites or fallbacks were provided at the generic level.
      As a result there are no uninstrumented variants of the fallbacks.
 
 Both issues were in the way of fully isolating fragile entry code pathes
 and especially the text poke int3 handler which is prone to an endless
 recursion problem when anything in that code path is about to be
 instrumented. This was always a problem, but got elevated due to the new
 batch mode updates of tracing.
 
 The solution is to mark the functions __always_inline and to flip the
 fallback and instrumentation so the non-instrumented variants are at the
 architecture level and the instrumentation is done in generic code.
 
 The latter introduces another fallback variant which will go away once all
 architectures have been moved over to arch_atomic_*.
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Merge tag 'locking-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull atomics rework from Thomas Gleixner:
 "Peter Zijlstras rework of atomics and fallbacks. This solves two
  problems:

   1) Compilers uninline small atomic_* static inline functions which
      can expose them to instrumentation.

   2) The instrumentation of atomic primitives was done at the
      architecture level while composites or fallbacks were provided at
      the generic level. As a result there are no uninstrumented
      variants of the fallbacks.

  Both issues were in the way of fully isolating fragile entry code
  pathes and especially the text poke int3 handler which is prone to an
  endless recursion problem when anything in that code path is about to
  be instrumented. This was always a problem, but got elevated due to
  the new batch mode updates of tracing.

  The solution is to mark the functions __always_inline and to flip the
  fallback and instrumentation so the non-instrumented variants are at
  the architecture level and the instrumentation is done in generic
  code.

  The latter introduces another fallback variant which will go away once
  all architectures have been moved over to arch_atomic_*"

* tag 'locking-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/atomics: Flip fallbacks and instrumentation
  asm-generic/atomic: Use __always_inline for fallback wrappers
2020-06-11 18:27:19 -07:00
Shannon Nelson c25cba3689 ionic: add pcie_print_link_status
Print the PCIe link information for our device.

Fixes: 77f972a707 ("ionic: remove support for mgmt device")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-11 18:26:19 -07:00
David S. Miller 3049f0fd3b Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2020-06-11

This series contains fixes to the iavf driver.

Brett fixes the supported link speeds in the iavf driver, which was only
able to report speeds that the i40e driver supported and was missing the
speeds supported by the ice driver.  In addition, fix how 2.5 and 5.0
GbE speeds are reported.

Alek fixes a enum comparison that was comparing two different enums that
may have different values, so update the comparison to use matching
enums.

Paul increases the time to complete a reset to allow for 128 VFs to
complete a reset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-11 18:25:20 -07:00
David S. Miller 07007dbee4 mlx5-fixes-2020-06-11
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Merge tag 'mlx5-fixes-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5 fixes 2020-06-11

This series introduces some fixes to mlx5 driver.
For more information please see tag log below.

Please pull and let me know if there is any problem.

For -stable v5.2
  ('net/mlx5: drain health workqueue in case of driver load error')

For -stable v5.3
  ('net/mlx5e: Fix repeated XSK usage on one channel')
  ('net/mlx5: Fix fatal error handling during device load')

For -stable v5.5
 ('net/mlx5: Disable reload while removing the device')

For -stable v5.7
  ('net/mlx5e: CT: Fix ipv6 nat header rewrite actions')
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-11 18:20:20 -07:00
Linus Torvalds b1a6274994 Merge branch 'akpm' (patches from Andrew)
Pull updates from Andrew Morton:
 "A few fixes and stragglers.

  Subsystems affected by this patch series: mm/memory-failure, ocfs2,
  lib/lzo, misc"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  amdgpu: a NULL ->mm does not mean a thread is a kthread
  lib/lzo: fix ambiguous encoding bug in lzo-rle
  ocfs2: fix build failure when TCP/IP is disabled
  mm/memory-failure: send SIGBUS(BUS_MCEERR_AR) only to current thread
  mm/memory-failure: prioritize prctl(PR_MCE_KILL) over vm.memory_failure_early_kill
2020-06-11 18:18:50 -07:00
David Howells 2ad6691d98 rxrpc: Fix race between incoming ACK parser and retransmitter
There's a race between the retransmission code and the received ACK parser.
The problem is that the retransmission loop has to drop the lock under
which it is iterating through the transmission buffer in order to transmit
a packet, but whilst the lock is dropped, the ACK parser can crank the Tx
window round and discard the packets from the buffer.

The retransmission code then updated the annotations for the wrong packet
and a later retransmission thought it had to retransmit a packet that
wasn't there, leading to a NULL pointer dereference.

Fix this by:

 (1) Moving the annotation change to before we drop the lock prior to
     transmission.  This means we can't vary the annotation depending on
     the outcome of the transmission, but that's fine - we'll retransmit
     again later if it failed now.

 (2) Skipping the packet if the skb pointer is NULL.

The following oops was seen:

	BUG: kernel NULL pointer dereference, address: 000000000000002d
	Workqueue: krxrpcd rxrpc_process_call
	RIP: 0010:rxrpc_get_skb+0x14/0x8a
	...
	Call Trace:
	 rxrpc_resend+0x331/0x41e
	 ? get_vtime_delta+0x13/0x20
	 rxrpc_process_call+0x3c0/0x4ac
	 process_one_work+0x18f/0x27f
	 worker_thread+0x1a3/0x247
	 ? create_worker+0x17d/0x17d
	 kthread+0xe6/0xeb
	 ? kthread_delayed_work_timer_fn+0x83/0x83
	 ret_from_fork+0x1f/0x30

Fixes: 248f219cb8 ("rxrpc: Rewrite the data and ack handling code")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-11 18:18:22 -07:00
Christoph Hellwig 8449d150e6 amdgpu: a NULL ->mm does not mean a thread is a kthread
Use the proper API instead.

Fixes: 70539bd795 ("drm/amd: Update MEC HQD loading code for KFD")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: http://lkml.kernel.org/r/20200404094101.672954-1-hch@lst.de
Link: http://lkml.kernel.org/r/20200404094101.672954-2-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-11 18:17:48 -07:00
Dave Rodgman b5265c813c lib/lzo: fix ambiguous encoding bug in lzo-rle
In some rare cases, for input data over 32 KB, lzo-rle could encode two
different inputs to the same compressed representation, so that
decompression is then ambiguous (i.e.  data may be corrupted - although
zram is not affected because it operates over 4 KB pages).

This modifies the compressor without changing the decompressor or the
bitstream format, such that:

 - there is no change to how data produced by the old compressor is
   decompressed

 - an old decompressor will correctly decode data from the updated
   compressor

 - performance and compression ratio are not affected

 - we avoid introducing a new bitstream format

In testing over 12.8M real-world files totalling 903 GB, three files
were affected by this bug.  I also constructed 37M semi-random 64 KB
files totalling 2.27 TB, and saw no affected files.  Finally I tested
over files constructed to contain each of the ~1024 possible bad input
sequences; for all of these cases, updated lzo-rle worked correctly.

There is no significant impact to performance or compression ratio.

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Dave Rodgman <dave.rodgman@arm.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200507100203.29785-1-dave.rodgman@arm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-11 18:17:47 -07:00
Tom Seewald fce1affe4e ocfs2: fix build failure when TCP/IP is disabled
After commit 12abc5ee78 ("tcp: add tcp_sock_set_nodelay") and commit
c488aeadcb ("tcp: add tcp_sock_set_user_timeout"), building the kernel
with OCFS2_FS=y but without INET=y causes it to fail with:

  ld: fs/ocfs2/cluster/tcp.o: in function `o2net_accept_many':
  tcp.c:(.text+0x21b1): undefined reference to `tcp_sock_set_nodelay'
  ld: tcp.c:(.text+0x21c1): undefined reference to `tcp_sock_set_user_timeout'
  ld: fs/ocfs2/cluster/tcp.o: in function `o2net_start_connect':
  tcp.c:(.text+0x2633): undefined reference to `tcp_sock_set_nodelay'
  ld: tcp.c:(.text+0x2643): undefined reference to `tcp_sock_set_user_timeout'

This is due to tcp_sock_set_nodelay() and tcp_sock_set_user_timeout()
being declared in linux/tcp.h and defined in net/ipv4/tcp.c, which
depend on TCP/IP being enabled.

To fix this, make OCFS2_FS depend on INET=y which already requires
NET=y.

Fixes: 12abc5ee78 ("tcp: add tcp_sock_set_nodelay")
Fixes: c488aeadcb ("tcp: add tcp_sock_set_user_timeout")
Signed-off-by: Tom Seewald <tseewald@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Link: http://lkml.kernel.org/r/20200606190827.23954-1-tseewald@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-11 18:17:47 -07:00
Naoya Horiguchi 03151c6e0b mm/memory-failure: send SIGBUS(BUS_MCEERR_AR) only to current thread
Action Required memory error should happen only when a processor is
about to access to a corrupted memory, so it's synchronous and only
affects current process/thread.

Recently commit 872e9a205c ("mm, memory_failure: don't send
BUS_MCEERR_AO for action required error") fixed the issue that Action
Required memory could unnecessarily send SIGBUS to the processes which
share the error memory.  But we still have another issue that we could
send SIGBUS to a wrong thread.

This is because collect_procs() and task_early_kill() fails to add the
current process to "to-kill" list.  So this patch is suggesting to fix
it.  With this fix, SIGBUS(BUS_MCEERR_AR) is never sent to non-current
process/thread.

Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Tony Luck <tony.luck@intel.com>
Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Link: http://lkml.kernel.org/r/1591321039-22141-3-git-send-email-naoya.horiguchi@nec.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-11 18:17:47 -07:00
Naoya Horiguchi 4e018b450a mm/memory-failure: prioritize prctl(PR_MCE_KILL) over vm.memory_failure_early_kill
Patch series "hwpoison: fixes signaling on memory error"

This is a small patchset to solve issues in memory error handler to send
SIGBUS to proper process/thread as expected in configuration.  Please
see descriptions in individual patches for more details.

This patch (of 2):

Early-kill policy is controlled from two types of settings, one is
per-process setting prctl(PR_MCE_KILL) and the other is system-wide
setting vm.memory_failure_early_kill.  Users expect per-process setting
to override system-wide setting as many other settings do, but
early-kill setting doesn't work as such.

For example, if a system configures vm.memory_failure_early_kill to 1
(enabled), a process receives SIGBUS even if it's configured to
explicitly disable PF_MCE_KILL by prctl().  That's not desirable for
applications with their own policies.

This patch is suggesting to change the priority of these two types of
settings, by checking sysctl_memory_failure_early_kill only when a given
process has the default kill policy.

Note that this patch is solving a thread choice issue too.

Originally, collect_procs() always chooses the main thread when
vm.memory_failure_early_kill is 1, even if the process has a dedicated
thread for memory error handling.  SIGBUS should be sent to the
dedicated thread if early-kill is enabled via
vm.memory_failure_early_kill as we are doing for PR_MCE_KILL_EARLY
processes.

Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Link: http://lkml.kernel.org/r/1591321039-22141-1-git-send-email-naoya.horiguchi@nec.com
Link: http://lkml.kernel.org/r/1591321039-22141-2-git-send-email-naoya.horiguchi@nec.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-11 18:17:47 -07:00
Linus Torvalds b961f8dc89 io_uring-5.8-2020-06-11
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Merge tag 'io_uring-5.8-2020-06-11' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "A few late stragglers in here. In particular:

   - Validate full range for provided buffers (Bijan)

   - Fix bad use of kfree() in buffer registration failure (Denis)

   - Don't allow close of ring itself, it's not fully safe. Making it
     fully safe would require making the system call more expensive,
     which isn't worth it.

   - Buffer selection fix

   - Regression fix for O_NONBLOCK retry

   - Make IORING_OP_ACCEPT honor O_NONBLOCK (Jiufei)

   - Restrict opcode handling for SQ/IOPOLL (Pavel)

   - io-wq work handling cleanups and improvements (Pavel, Xiaoguang)

   - IOPOLL race fix (Xiaoguang)"

* tag 'io_uring-5.8-2020-06-11' of git://git.kernel.dk/linux-block:
  io_uring: fix io_kiocb.flags modification race in IOPOLL mode
  io_uring: check file O_NONBLOCK state for accept
  io_uring: avoid unnecessary io_wq_work copy for fast poll feature
  io_uring: avoid whole io_wq_work copy for requests completed inline
  io_uring: allow O_NONBLOCK async retry
  io_wq: add per-wq work handler instead of per work
  io_uring: don't arm a timeout through work.func
  io_uring: remove custom ->func handlers
  io_uring: don't derive close state from ->func
  io_uring: use kvfree() in io_sqe_buffer_register()
  io_uring: validate the full range of provided buffers for access
  io_uring: re-set iov base/len for buffer select retry
  io_uring: move send/recv IOPOLL check into prep
  io_uring: deduplicate io_openat{,2}_prep()
  io_uring: do build_open_how() only once
  io_uring: fix {SQ,IO}POLL with unsupported opcodes
  io_uring: disallow close of ring itself
2020-06-11 16:10:08 -07:00
Linus Torvalds a58dfea297 block-5.8-2020-06-11
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Merge tag 'block-5.8-2020-06-11' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Some followup fixes for this merge window. In particular:

   - Seqcount write missing preemption disable for stats (Ahmed)

   - blktrace fixes (Chaitanya)

   - Redundant initializations (Colin)

   - Various small NVMe fixes (Chaitanya, Christoph, Daniel, Max,
     Niklas, Rikard)

   - loop flag bug regression fix (Martijn)

   - blk-mq tagging fixes (Christoph, Ming)"

* tag 'block-5.8-2020-06-11' of git://git.kernel.dk/linux-block:
  umem: remove redundant initialization of variable ret
  pktcdvd: remove redundant initialization of variable ret
  nvmet: fail outstanding host posted AEN req
  nvme-pci: use simple suspend when a HMB is enabled
  nvme-fc: don't call nvme_cleanup_cmd() for AENs
  nvmet-tcp: constify nvmet_tcp_ops
  nvme-tcp: constify nvme_tcp_mq_ops and nvme_tcp_admin_mq_ops
  nvme: do not call del_gendisk() on a disk that was never added
  blk-mq: fix blk_mq_all_tag_iter
  blk-mq: split out a __blk_mq_get_driver_tag helper
  blktrace: fix endianness for blk_log_remap()
  blktrace: fix endianness in get_pdu_int()
  blktrace: use errno instead of bi_status
  block: nr_sects_write(): Disable preemption on seqcount write
  block: remove the error argument to the block_bio_complete tracepoint
  loop: Fix wrong masking of status flags
  block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed
2020-06-11 16:07:33 -07:00
David Howells b3597945c8 afs: Fix afs_store_data() to set mtime in new operation descriptor
Fix afs_store_data() so that it sets the mtime in the new operation
descriptor otherwise the mtime on the server gets set to 0 when a write is
stored to the server.

Fixes: e49c7b2f6d ("afs: Build an abstraction around an "operation" concept")
Reported-by: Dave Botsch <botsch@cnf.cornell.edu>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-11 16:04:30 -07:00
Linus Torvalds 6a45a65888 A set of fixes and updates for x86:
- Unbreak paravirt VDSO clocks. While the VDSO code was moved into lib
     for sharing a subtle check for the validity of paravirt clocks got
     replaced. While the replacement works perfectly fine for bare metal as
     the update of the VDSO clock mode is synchronous, it fails for paravirt
     clocks because the hypervisor can invalidate them asynchronous. Bring
     it back as an optional function so it does not inflict this on
     architectures which are free of PV damage.
 
   - Fix the jiffies to jiffies64 mapping on 64bit so it does not trigger
     an ODR violation on newer compilers
 
   - Three fixes for the SSBD and *IB* speculation mitigation maze to ensure
     consistency, not disabling of some *IB* variants wrongly and to prevent
     a rogue cross process shutdown of SSBD. All marked for stable.
 
   - Add yet more CPU models to the splitlock detection capable list !@#%$!
 
   - Bring the pr_info() back which tells that TSC deadline timer is enabled.
 
   - Reboot quirk for MacBook6,1
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Merge tag 'x86-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull more x86 updates from Thomas Gleixner:
 "A set of fixes and updates for x86:

   - Unbreak paravirt VDSO clocks.

     While the VDSO code was moved into lib for sharing a subtle check
     for the validity of paravirt clocks got replaced. While the
     replacement works perfectly fine for bare metal as the update of
     the VDSO clock mode is synchronous, it fails for paravirt clocks
     because the hypervisor can invalidate them asynchronously.

     Bring it back as an optional function so it does not inflict this
     on architectures which are free of PV damage.

   - Fix the jiffies to jiffies64 mapping on 64bit so it does not
     trigger an ODR violation on newer compilers

   - Three fixes for the SSBD and *IB* speculation mitigation maze to
     ensure consistency, not disabling of some *IB* variants wrongly and
     to prevent a rogue cross process shutdown of SSBD. All marked for
     stable.

   - Add yet more CPU models to the splitlock detection capable list
     !@#%$!

   - Bring the pr_info() back which tells that TSC deadline timer is
     enabled.

   - Reboot quirk for MacBook6,1"

* tag 'x86-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vdso: Unbreak paravirt VDSO clocks
  lib/vdso: Provide sanity check for cycles (again)
  clocksource: Remove obsolete ifdef
  x86_64: Fix jiffies ODR violation
  x86/speculation: PR_SPEC_FORCE_DISABLE enforcement for indirect branches.
  x86/speculation: Prevent rogue cross-process SSBD shutdown
  x86/speculation: Avoid force-disabling IBPB based on STIBP and enhanced IBRS.
  x86/cpu: Add Sapphire Rapids CPU model number
  x86/split_lock: Add Icelake microserver and Tigerlake CPU models
  x86/apic: Make TSC deadline timer detection message visible
  x86/reboot/quirks: Add MacBook6,1 reboot quirk
2020-06-11 15:54:31 -07:00
Dan Carpenter 09a9297574 net/mlx5: E-Switch, Fix some error pointer dereferences
We can't leave "counter" set to an error pointer.  Otherwise either it
will lead to an error pointer dereference later in the function or it
leads to an error pointer dereference when we call mlx5_fc_destroy().

Fixes: 07bab95026 ("net/mlx5: E-Switch, Refactor eswitch ingress acl codes")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:38:08 -07:00
Leon Romanovsky 17e73d47cd net/mlx5: Don't fail driver on failure to create debugfs
Clang warns:

drivers/net/ethernet/mellanox/mlx5/core/main.c:1278:6: warning: variable
'err' is used uninitialized whenever 'if' condition is true
[-Wsometimes-uninitialized]
        if (!priv->dbg_root) {
            ^~~~~~~~~~~~~~~
drivers/net/ethernet/mellanox/mlx5/core/main.c:1303:9: note:
uninitialized use occurs here
        return err;
               ^~~
drivers/net/ethernet/mellanox/mlx5/core/main.c:1278:2: note: remove the
'if' if its condition is always false
        if (!priv->dbg_root) {
        ^~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/mellanox/mlx5/core/main.c:1259:9: note: initialize
the variable 'err' to silence this warning
        int err;
               ^
                = 0
1 warning generated.

The check of returned value of debugfs_create_dir() is wrong because
by the design debugfs failures should never fail the driver and the
check itself was wrong too. The kernel compiled without CONFIG_DEBUG_FS
will return ERR_PTR(-ENODEV) and not NULL as expected.

Fixes: 11f3b84d70 ("net/mlx5: Split mdev init and pci init")
Link: https://github.com/ClangBuiltLinux/linux/issues/1042
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:38:06 -07:00
Oz Shlomo 0d156f2ded net/mlx5e: CT: Fix ipv6 nat header rewrite actions
Set the ipv6 word fields according to the hardware definitions.

Fixes: ac991b48d4 ("net/mlx5e: CT: Offload established flows")
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:38:04 -07:00
Parav Pandit 98f91c4576 net/mlx5: Fix devlink objects and devlink device unregister sequence
Current below problems exists.

1. devlink device is registered by mlx5_load_one(). But it is
not unregistered by mlx5_unload_one(). This is incorrect.

2. Above issue leads to,
When mlx5 PCI device is removed, currently devlink device is
unregistered before devlink ports are unregistered in below ladder
diagram.

remove_one()
  mlx5_devlink_unregister()
    [..]
    devlink_unregister() <- ports are still registered!
  mlx5_unload_one()
    mlx5_unregister_device()
      mlx5_remove_device()
        mlx5e_remove()
          mlx5e_devlink_port_unregister()
            devlink_port_unregister()

3. Condition checking for registering and unregister device are not
symmetric either in these routines.

Hence, fix the sequence by having load and unload routines symmetric
and in right order.
i.e.
(a) register devlink device followed by registering devlink ports
(b) unregister devlink ports followed by devlink device

Do this based on boot and cleanup flags instead of different
conditions.

Fixes: c6acd629ee ("net/mlx5e: Add support for devlink-port in non-representors mode")
Fixes: f60f315d33 ("net/mlx5e: Register devlink ports for physical link, PCI PF, VFs")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:38:02 -07:00
Parav Pandit 60904cd349 net/mlx5: Disable reload while removing the device
While unregistration is in progress, user might be reloading the
interface.
This can race with unregistration in below flow which uses the
resources which are getting disabled by reload flow.

Hence, disable the devlink reloading first when removing the device.

     CPU0                                   CPU1
     ----                                   ----
local_pci_remove()                  devlink_mutex
  remove_one()                       devlink_nl_cmd_reload()
    mlx5_unregister_device()           devlink_reload()
                                       ops->reload_down()
                                         mlx5_unload_one()

Fixes: 4383cfcc65 ("net/mlx5: Add devlink reload")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:38:00 -07:00
Aya Levin 5f1572e617 net/mlx5e: Fix ethtool hfunc configuration change
Changing RX hash function requires rearranging of RQT internal indexes,
the user isn't exposed to such changes and these changes do not affect
the user configured indirection table. Rebuild RQ table on hfunc change.

Fixes: bdfc028de1 ("net/mlx5e: Fix ethtool RX hash func configuration change")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:37:57 -07:00
Maxim Mikityanskiy 36d45fb9d2 net/mlx5e: Fix repeated XSK usage on one channel
After an XSK is closed, the relevant structures in the channel are not
zeroed. If an XSK is opened the second time on the same channel without
recreating channels, the stray values in the structures will lead to
incorrect operation of queues, which causes CQE errors, and the new
socket doesn't work at all.

This patch fixes the issue by explicitly zeroing XSK-related structs in
the channel on XSK close. Note that those structs are zeroed on channel
creation, and usually a configuration change (XDP program is set)
happens on XSK open, which leads to recreating channels, so typical XSK
usecases don't suffer from this issue. However, if XSKs are opened and
closed on the same channel without removing the XDP program, this bug
reproduces.

Fixes: db05815b36 ("net/mlx5e: Add XSK zero-copy support")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:37:55 -07:00
Denis Efremov 47a357de2b net/mlx5: DR, Fix freeing in dr_create_rc_qp()
Variable "in" in dr_create_rc_qp() is allocated with kvzalloc() and
should be freed with kvfree().

Fixes: 297cccebdc ("net/mlx5: DR, Expose an internal API to issue RDMA operations")
Cc: stable@vger.kernel.org
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:37:53 -07:00
Shay Drory b6e0b6bebe net/mlx5: Fix fatal error handling during device load
Currently, in case of fatal error during mlx5_load_one(), we cannot
enter error state until mlx5_load_one() is finished, what can take
several minutes until commands will get timeouts, because these commands
can't be processed due to the fatal error.
Fix it by setting dev->state as MLX5_DEVICE_STATE_INTERNAL_ERROR before
requesting the lock.

Fixes: c1d4d2e92a ("net/mlx5: Avoid calling sleeping function by the health poll thread")
Signed-off-by: Shay Drory <shayd@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:37:51 -07:00
Shay Drory 42ea9f1b5c net/mlx5: drain health workqueue in case of driver load error
In case there is a work in the health WQ when we teardown the driver,
in driver load error flow, the health work will try to read dev->iseg,
which was already unmap in mlx5_pci_close().
Fix it by draining the health workqueue first thing in mlx5_pci_close().

Trace of the error:
BUG: unable to handle page fault for address: ffffb5b141c18014
PF: supervisor read access in kernel mode
PF: error_code(0x0000) - not-present page
PGD 1fe95d067 P4D 1fe95d067 PUD 1fe95e067 PMD 1b7823067 PTE 0
Oops: 0000 [#1] SMP PTI
CPU: 3 PID: 6755 Comm: kworker/u128:2 Not tainted 5.2.0-net-next-mlx5-hv_stats-over-last-worked-hyperv #1
Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006  04/28/2016
Workqueue: mlx5_healtha050:00:02.0 mlx5_fw_fatal_reporter_err_work [mlx5_core]
RIP: 0010:ioread32be+0x30/0x40
Code: 00 77 27 48 81 ff 00 00 01 00 76 07 0f b7 d7 ed 0f c8 c3 55 48 c7 c6 3b ee d5 9f 48 89 e5 e8 67 fc ff ff b8 ff ff ff ff 5d c3 <8b> 07 0f c8 c3 66 66 2e 0f 1f 84 00 00 00 00 00 48 81 fe ff ff 03
RSP: 0018:ffffb5b14c56fd78 EFLAGS: 00010292
RAX: ffffb5b141c18000 RBX: ffff8e9f78a801c0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffff8e9f7ecd7628 RDI: ffffb5b141c18014
RBP: ffffb5b14c56fd90 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8e9f372a2c30 R11: ffff8e9f87f4bc40 R12: ffff8e9f372a1fc0
R13: ffff8e9f78a80000 R14: ffffffffc07136a0 R15: ffff8e9f78ae6f20
FS:  0000000000000000(0000) GS:ffff8e9f7ecc0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffb5b141c18014 CR3: 00000001c8f82006 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ? mlx5_health_try_recover+0x4d/0x270 [mlx5_core]
 mlx5_fw_fatal_reporter_recover+0x16/0x20 [mlx5_core]
 devlink_health_reporter_recover+0x1c/0x50
 devlink_health_report+0xfb/0x240
 mlx5_fw_fatal_reporter_err_work+0x65/0xd0 [mlx5_core]
 process_one_work+0x1fb/0x4e0
 ? process_one_work+0x16b/0x4e0
 worker_thread+0x4f/0x3d0
 kthread+0x10d/0x140
 ? process_one_work+0x4e0/0x4e0
 ? kthread_cancel_delayed_work_sync+0x20/0x20
 ret_from_fork+0x1f/0x30
Modules linked in: nfsv3 rpcsec_gss_krb5 nfsv4 nfs fscache 8021q garp mrp stp llc ipmi_devintf ipmi_msghandler rpcrdma rdma_ucm ib_iser rdma_cm ib_umad iw_cm ib_ipoib libiscsi scsi_transport_iscsi ib_cm mlx5_ib ib_uverbs ib_core mlx5_core sb_edac crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 mlxfw crypto_simd cryptd glue_helper input_leds hyperv_fb intel_rapl_perf joydev serio_raw pci_hyperv pci_hyperv_mini mac_hid hv_balloon nfsd auth_rpcgss nfs_acl lockd grace sunrpc sch_fq_codel ip_tables x_tables autofs4 hv_utils hid_generic hv_storvsc ptp hid_hyperv hid hv_netvsc hyperv_keyboard pps_core scsi_transport_fc psmouse hv_vmbus i2c_piix4 floppy pata_acpi
CR2: ffffb5b141c18014
---[ end trace b12c5503157cad24 ]---
RIP: 0010:ioread32be+0x30/0x40
Code: 00 77 27 48 81 ff 00 00 01 00 76 07 0f b7 d7 ed 0f c8 c3 55 48 c7 c6 3b ee d5 9f 48 89 e5 e8 67 fc ff ff b8 ff ff ff ff 5d c3 <8b> 07 0f c8 c3 66 66 2e 0f 1f 84 00 00 00 00 00 48 81 fe ff ff 03
RSP: 0018:ffffb5b14c56fd78 EFLAGS: 00010292
RAX: ffffb5b141c18000 RBX: ffff8e9f78a801c0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffff8e9f7ecd7628 RDI: ffffb5b141c18014
RBP: ffffb5b14c56fd90 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8e9f372a2c30 R11: ffff8e9f87f4bc40 R12: ffff8e9f372a1fc0
R13: ffff8e9f78a80000 R14: ffffffffc07136a0 R15: ffff8e9f78ae6f20
FS:  0000000000000000(0000) GS:ffff8e9f7ecc0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffb5b141c18014 CR3: 00000001c8f82006 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:38
in_atomic(): 0, irqs_disabled(): 1, pid: 6755, name: kworker/u128:2
INFO: lockdep is turned off.
CPU: 3 PID: 6755 Comm: kworker/u128:2 Tainted: G      D           5.2.0-net-next-mlx5-hv_stats-over-last-worked-hyperv #1
Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006  04/28/2016
Workqueue: mlx5_healtha050:00:02.0 mlx5_fw_fatal_reporter_err_work [mlx5_core]
Call Trace:
 dump_stack+0x63/0x88
 ___might_sleep+0x10a/0x130
 __might_sleep+0x4a/0x80
 exit_signals+0x33/0x230
 ? blocking_notifier_call_chain+0x16/0x20
 do_exit+0xb1/0xc30
 ? kthread+0x10d/0x140
 ? process_one_work+0x4e0/0x4e0

Fixes: 52c368dc3d ("net/mlx5: Move health and page alloc init to mdev_init")
Signed-off-by: Shay Drory <shayd@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-11 15:37:48 -07:00
Linus Torvalds 92ac971219 A small fix for the VDSO code to force inline
__cvdso_clock_gettime_common() so the compiler can't generate horrible
 code.
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Merge tag 'timers-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Thomas Gleixner:
 "A small fix for the VDSO code to force inline
  __cvdso_clock_gettime_common() so the compiler
  can't generate horrible code"

* tag 'timers-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  lib/vdso: Force inlining of __cvdso_clock_gettime_common()
2020-06-11 15:36:28 -07:00
Paul Greenwalt 8e3e4b9da7 iavf: increase reset complete wait time
With an increased number of VFs, it's possible to encounter the following
issue during reset.

    iavf b8d4:00:02.0: Hardware reset detected
    iavf b8d4:00:02.0: Reset never finished (0)
    iavf b8d4:00:02.0: Reset task did not complete, VF disabled

Increase the reset complete wait count to allow for 128 VFs to complete
reset.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-11 15:13:16 -07:00
Brett Creeley 18c012d922 iavf: Fix reporting 2.5 Gb and 5Gb speeds
Commit 4ae4916b56 ("i40e: fix 'Unknown bps' in dmesg for 2.5Gb/5Gb
speeds") added the ability for the PF to report 2.5 and 5Gb speeds,
however, the iavf driver does not recognize those speeds as the values were
not added there. Add the proper enums and values so that iavf can properly
deal with those speeds.

Fixes: 4ae4916b56 ("i40e: fix 'Unknown bps' in dmesg for 2.5Gb/5Gb speeds")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Witold Fijalkowski <witoldx.fijalkowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-11 15:11:42 -07:00
Aleksandr Loktionov 5071bda294 iavf: use appropriate enum for comparison
adapter->link_speed has type enum virtchnl_link_speed but our comparisons
are against enum iavf_aq_link_speed. Though they are, currently, the same
values, change the comparison to the matching enum virtchnl_link_speed
since that may not always be the case.

Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-11 14:53:50 -07:00
Brett Creeley e0ef26fbe2 iavf: fix speed reporting over virtchnl
Link speeds are communicated over virtchnl using an enum
virtchnl_link_speed. Currently, the highest link speed is 40Gbps which
leaves us unable to reflect some speeds that an ice VF is capable of.
This causes link speed to be misreported on the iavf driver.

Allow for communicating link speeds using Mbps so that the proper speed can
be reported for an ice VF. Moving away from the enum allows us to
communicate future speed changes without requiring a new enum to be added.

In order to support communicating link speeds over virtchnl in Mbps the
following functionality was added:
    - Added u32 link_speed_mbps in the iavf_adapter structure.
    - Added the macro ADV_LINK_SUPPORT(_a) to determine if the VF
      driver supports communicating link speeds in Mbps.
    - Added the function iavf_get_vpe_link_status() to fill the
      correct link_status in the event_data union based on the
      ADV_LINK_SUPPORT(_a) macro.
    - Added the function iavf_set_adapter_link_speed_from_vpe()
      to determine whether or not to fill the u32 link_speed_mbps or
      enum virtchnl_link_speed link_speed field in the iavf_adapter
      structure based on the ADV_LINK_SUPPORT(_a) macro.
    - Do not free vf_res in iavf_init_get_resources() as vf_res will be
      accessed in iavf_get_link_ksettings(); memset to 0 instead. This
      memory is subsequently freed in iavf_remove().

Fixes: 7c710869d6 ("ice: Add handlers for VF netdevice operations")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Sergey Nemov <sergey.nemov@intel.com>
Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-11 14:53:50 -07:00
Tobias Klauser 2c4779eff8 tools, bpftool: Exit on error in function codegen
Currently, the codegen function might fail and return an error. But its
callers continue without checking its return value. Since codegen can
fail only in the unlikely case of the system running out of memory or
the static template being malformed, just exit(-1) directly from codegen
and make it void-returning.

Suggested-by: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200611103341.21532-1-tklauser@distanz.ch
2020-06-11 23:52:19 +02:00
Li RongQing aa2cad0600 xdp: Fix xsk_generic_xmit errno
Propagate sock_alloc_send_skb error code, not set it to
EAGAIN unconditionally, when fail to allocate skb, which
might cause that user space unnecessary loops.

Fixes: 35fcde7f8d ("xsk: support for Tx")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/1591852266-24017-1-git-send-email-lirongqing@baidu.com
2020-06-11 23:44:33 +02:00
Linus Torvalds 623f6dc593 Merge branch 'akpm' (patches from Andrew)
Merge some more updates from Andrew Morton:

 - various hotfixes and minor things

 - hch's use_mm/unuse_mm clearnups

Subsystems affected by this patch series: mm/hugetlb, scripts, kcov,
lib, nilfs, checkpatch, lib, mm/debug, ocfs2, lib, misc.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  kernel: set USER_DS in kthread_use_mm
  kernel: better document the use_mm/unuse_mm API contract
  kernel: move use_mm/unuse_mm to kthread.c
  kernel: move use_mm/unuse_mm to kthread.c
  stacktrace: cleanup inconsistent variable type
  lib: test get_count_order/long in test_bitops.c
  mm: add comments on pglist_data zones
  ocfs2: fix spelling mistake and grammar
  mm/debug_vm_pgtable: fix kernel crash by checking for THP support
  lib: fix bitmap_parse() on 64-bit big endian archs
  checkpatch: correct check for kernel parameters doc
  nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
  lib/lz4/lz4_decompress.c: document deliberate use of `&'
  kcov: check kcov_softirq in kcov_remote_stop()
  scripts/spelling: add a few more typos
  khugepaged: selftests: fix timeout condition in wait_for_scan()
2020-06-11 13:25:53 -07:00
Rob Herring 0db958b689 dt-bindings: Fix more incorrect 'reg' property sizes in examples
The examples template is a 'simple-bus' with a size of 1 cell for
had between 2 and 4 cells which really only errors on I2C or SPI type
devices with a single cell.

The easiest fix in most cases is to change the 'reg' property to 1 cell
for address and size.

Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Ezequiel Garcia <ezequiel@collabora.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: linux-rockchip@lists.infradead.org
Cc: linux-media@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Cc: netdev@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-06-11 14:12:09 -06:00
Joerg Roedel 5cd221e837 alpha: Fix build around srm_sysrq_reboot_op
The patch introducing the struct was probably never compile tested,
because it sets a handler with a wrong function signature. Wrap the
handler into a functions with the correct signature to fix the build.

Fixes: 0f1c9688a1 ("tty/sysrq: alpha: export and use __sysrq_get_key_op()")
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-11 13:05:24 -07:00
Linus Torvalds cd16ed33c3 RISC-V Patches for the 5.8 Merge Window, Part 2
* Select statements are now sorted alphanumerically.
 * Our first-level interrupts are now handled via a full irqchip driver.
 * CPU hotplug is fixed.
 * Our vDSO calls now use the common vDSO infrastructure.
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Merge tag 'riscv-for-linus-5.8-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:

 - Kconfig select statements are now sorted alphanumerically

 - first-level interrupts are now handled via a full irqchip driver

 - CPU hotplug is fixed

 - vDSO calls now use the common vDSO infrastructure

* tag 'riscv-for-linus-5.8-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: set the permission of vdso_data to read-only
  riscv: use vDSO common flow to reduce the latency of the time-related functions
  riscv: fix build warning of missing prototypes
  RISC-V: Don't mark init section as non-executable
  RISC-V: Force select RISCV_INTC for CONFIG_RISCV
  RISC-V: Remove do_IRQ() function
  clocksource/drivers/timer-riscv: Use per-CPU timer interrupt
  irqchip: RISC-V per-HART local interrupt controller driver
  RISC-V: Rename and move plic_find_hart_id() to arch directory
  RISC-V: self-contained IPI handling routine
  RISC-V: Sort select statements alphanumerically
2020-06-11 12:55:20 -07:00
Linus Torvalds 55d728b2b0 arm64 merge window fixes for -rc1
- Fix SCS debug check to report max stack usage in bytes as advertised
 - Fix typo: CONFIG_FTRACE_WITH_REGS => CONFIG_DYNAMIC_FTRACE_WITH_REGS
 - Fix incorrect mask in HiSilicon L3C perf PMU driver
 - Fix compat vDSO compilation under some toolchain configurations
 - Fix false UBSAN warning from ACPI IORT parsing code
 - Fix booting under bootloaders that ignore TEXT_OFFSET
 - Annotate debug initcall function with '__init'
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "arm64 fixes that came in during the merge window.

  There will probably be more to come, but it doesn't seem like it's
  worth me sitting on these in the meantime.

   - Fix SCS debug check to report max stack usage in bytes as advertised

   - Fix typo: CONFIG_FTRACE_WITH_REGS => CONFIG_DYNAMIC_FTRACE_WITH_REGS

   - Fix incorrect mask in HiSilicon L3C perf PMU driver

   - Fix compat vDSO compilation under some toolchain configurations

   - Fix false UBSAN warning from ACPI IORT parsing code

   - Fix booting under bootloaders that ignore TEXT_OFFSET

   - Annotate debug initcall function with '__init'"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: warn on incorrect placement of the kernel by the bootloader
  arm64: acpi: fix UBSAN warning
  arm64: vdso32: add CONFIG_THUMB2_COMPAT_VDSO
  drivers/perf: hisi: Fix wrong value for all counters enable
  arm64: ftrace: Change CONFIG_FTRACE_WITH_REGS to CONFIG_DYNAMIC_FTRACE_WITH_REGS
  arm64: debug: mark a function as __init to save some memory
  scs: Report SCS usage in bytes rather than number of entries
2020-06-11 12:53:23 -07:00
Linus Torvalds d3ea693439 m68knommu: collection of fixes for v5.8
Fixes include:
 . casting clean up in the user access macros
 . memory leak on error case fix for PCI probing
 . update of a defconfig.
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Merge tag 'm68knommu-for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

Pull m68knommu updates from Greg Ungerer:

 - casting clean up in the user access macros

 - memory leak on error case fix for PCI probing

 - update of a defconfig

* tag 'm68knommu-for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k,nommu: fix implicit cast from __user in __{get,put}_user_asm()
  m68k,nommu: add missing __user in uaccess' __ptr() macro
  m68k: Drop CONFIG_MTD_M25P80 in stmark2_defconfig
  m68k/PCI: Fix a memory leak in an error handling path
2020-06-11 12:50:54 -07:00
Rob Herring c0eca14c57 dt-bindings: phy: qcom: Fix missing 'ranges' and example addresses
The QCom QMP PHY bindings have child nodes with translatable (MMIO)
addresses, so a 'ranges' property is required in the parent node.
Additionally, the examples default to 1 address and size cell, so let's
fix that, too.

Fixes: ccf51c1ced ("dt-bindings: phy: qcom,qmp: Convert QMP PHY bindings to yaml")
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-06-11 13:50:43 -06:00
Rob Herring 086e9074f5 dt-bindings: Remove more cases of 'allOf' containing a '$ref'
Another round of 'allOf' removals that came in this cycle.

json-schema versions draft7 and earlier have a weird behavior in that
any keywords combined with a '$ref' are ignored (silently). The correct
form was to put a '$ref' under an 'allOf'. This behavior is now changed
in the 2019-09 json-schema spec and '$ref' can be mixed with other
keywords. The json-schema library doesn't yet support this, but the
tooling now does a fixup for this and either way works.

This has been a constant source of review comments, so let's change this
treewide so everyone copies the simpler syntax.

Signed-off-by: Rob Herring <robh@kernel.org>
2020-06-11 13:50:43 -06:00
Tuong Lien 9798278260 tipc: fix NULL pointer dereference in tipc_disc_rcv()
When a bearer is enabled, we create a 'tipc_discoverer' object to store
the bearer related data along with a timer and a preformatted discovery
message buffer for later probing... However, this is only carried after
the bearer was set 'up', that left a race condition resulting in kernel
panic.

It occurs when a discovery message from a peer node is received and
processed in bottom half (since the bearer is 'up' already) just before
the discoverer object is created but is now accessed in order to update
the preformatted buffer (with a new trial address, ...) so leads to the
NULL pointer dereference.

We solve the problem by simply moving the bearer 'up' setting to later,
so make sure everything is ready prior to any message receiving.

Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-11 12:48:08 -07:00
Tuong Lien c9aa81faf1 tipc: fix kernel WARNING in tipc_msg_append()
syzbot found the following issue:

WARNING: CPU: 0 PID: 6808 at include/linux/thread_info.h:150 check_copy_size include/linux/thread_info.h:150 [inline]
WARNING: CPU: 0 PID: 6808 at include/linux/thread_info.h:150 copy_from_iter include/linux/uio.h:144 [inline]
WARNING: CPU: 0 PID: 6808 at include/linux/thread_info.h:150 tipc_msg_append+0x49a/0x5e0 net/tipc/msg.c:242
Kernel panic - not syncing: panic_on_warn set ...

This happens after commit 5e9eeccc58 ("tipc: fix NULL pointer
dereference in streaming") that tried to build at least one buffer even
when the message data length is zero... However, it now exposes another
bug that the 'mss' can be zero and the 'cpy' will be negative, thus the
above kernel WARNING will appear!
The zero value of 'mss' is never expected because it means Nagle is not
enabled for the socket (actually the socket type was 'SOCK_SEQPACKET'),
so the function 'tipc_msg_append()' must not be called at all. But that
was in this particular case since the message data length was zero, and
the 'send <= maxnagle' check became true.

We resolve the issue by explicitly checking if Nagle is enabled for the
socket, i.e. 'maxnagle != 0' before calling the 'tipc_msg_append()'. We
also reinforce the function to against such a negative values if any.

Reported-by: syzbot+75139a7d2605236b0b7f@syzkaller.appspotmail.com
Fixes: c0bceb97db ("tipc: add smart nagle feature")
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-11 12:47:23 -07:00
Shannon Nelson 77f972a707 ionic: remove support for mgmt device
We no longer support the mgmt device in the ionic driver,
so remove the device id and related code.

Fixes: b3f064e974 ("ionic: add support for device id 0x1004")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-11 12:43:29 -07:00
Linus Torvalds 2dca74a40e - qcom :
new controller driver for IPCC
      reorg the of_device data
      add support for ipq6018 platform
 - spreadtrum:
      new sprd controller driver
 - imx:
      implement suspend/resume PM support
 - Misc :
      make pcc driver struct as static
      fix return value in imx_mu_scu
      disable clock before bailout in imx probe
      remove duplicate error mssg in zynqmp probe
      fix header size in imx.scu
      check for null instead of is-err in zynqmp
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Merge tag 'mailbox-v5.8' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:
 "qcom:
   - new controller driver for IPCC
   - reorg the of_device data
   - add support for ipq6018 platform

  spreadtrum:
   - new sprd controller driver

  imx:
   - implement suspend/resume PM support

  misc:
   - make pcc driver struct static
   - fix return value in imx_mu_scu
   - disable clock before bailout in imx probe
   - remove duplicate error mssg in zynqmp probe
   - fix header size in imx.scu
   - check for null instead of is-err in zynqmp"

* tag 'mailbox-v5.8' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: qcom: Add ipq6018 apcs compatible
  mailbox: qcom: Add clock driver name in apcs mailbox driver data
  dt-bindings: mailbox: Add YAML schemas for QCOM APCS global block
  mailbox: imx: ONLY IPC MU needs IRQF_NO_SUSPEND flag
  mailbox: imx: Add runtime PM callback to handle MU clocks
  mailbox: imx: Add context save/restore for suspend/resume
  MAINTAINERS: Add entry for Qualcomm IPCC driver
  mailbox: Add support for Qualcomm IPCC
  dt-bindings: mailbox: Add devicetree binding for Qcom IPCC
  mailbox: zynqmp-ipi: Fix NULL vs IS_ERR() check in zynqmp_ipi_mbox_probe()
  mailbox: imx-mailbox: fix scu msg header size check
  mailbox: sprd: Add Spreadtrum mailbox driver
  dt-bindings: mailbox: Add the Spreadtrum mailbox documentation
  mailbox: ZynqMP IPI: Delete an error message in zynqmp_ipi_probe()
  mailbox: imx: Disable the clock on devm_mbox_controller_register() failure
  mailbox: imx: Fix return in imx_mu_scu_xlate()
  mailbox: imx: Support runtime PM
  mailbox: pcc: make pcc_mbox_driver static
2020-06-11 12:42:14 -07:00
Xu Wang 9334d5ba32 drivers: dpaa2: Use devm_kcalloc() in setup_dpni()
A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "devm_kcalloc".

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-11 12:41:12 -07:00
Linus Torvalds e0154bd478 sound fixes for 5.8-rc1
Here are last-minute fixes gathered before merge window close;
 a few fixes are for the core while the rest majority are driver
 fixes.
 
 * PCM locking annotation fixes and the possible self-lock fix
 * ASoC DPCM regression fixes with multi-CPU DAI
 * A fix for inconsistent resume from system-PM on USB-audio
 * Improved runtime-PM handling with multiple USB interfaces
 * Quirks for HD-audio and USB-audio
 * Hardened firmware handling in max98390 codec
 * A couple of fixes for meson
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Merge tag 'sound-fix-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are last-minute fixes gathered before merge window close; a few
  fixes are for the core while the rest majority are driver fixes.

   - PCM locking annotation fixes and the possible self-lock fix

   - ASoC DPCM regression fixes with multi-CPU DAI

   - A fix for inconsistent resume from system-PM on USB-audio

   - Improved runtime-PM handling with multiple USB interfaces

   - Quirks for HD-audio and USB-audio

   - Hardened firmware handling in max98390 codec

   - A couple of fixes for meson"

* tag 'sound-fix-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
  ASoC: rt5645: Add platform-data for Asus T101HA
  ASoC: Intel: bytcr_rt5640: Add quirk for Toshiba Encore WT10-A tablet
  ASoC: SOF: nocodec: conditionally set dpcm_capture/dpcm_playback flags
  ASoC: Intel: boards: replace capture_only by dpcm_capture
  ASoC: core: only convert non DPCM link to DPCM link
  ASoC: soc-pcm: dpcm: fix playback/capture checks
  ASoC: meson: add missing free_irq() in error path
  ALSA: pcm: disallow linking stream to itself
  ALSA: usb-audio: Manage auto-pm of all bundled interfaces
  ALSA: hda/realtek - add a pintbl quirk for several Lenovo machines
  ALSA: pcm: fix snd_pcm_link() lockdep splat
  ALSA: usb-audio: Use the new macro for HP Dock rename quirks
  ALSA: usb-audio: Add vendor, product and profile name for HP Thunderbolt Dock
  ALSA: emu10k1: delete an unnecessary condition
  dt-bindings: ASoc: Fix tdm-slot documentation spelling error
  ASoC: meson: fix memory leak of links if allocation of ldata fails
  ALSA: usb-audio: Fix inconsistent card PM state after resume
  ASoC: max98390: Fix potential crash during param fw loading
  ASoC: max98390: Fix incorrect printf qualifier
  ASoC: fsl-asoc-card: Defer probe when fail to find codec device
  ...
2020-06-11 12:38:11 -07:00
Linus Torvalds d4e181f204 drm fixes for 5.7-rc1
core:
 - fix race in connectors sending hotplug
 
 i915:
 - Avoid use after free in cmdparser
 - Avoid NULL dereference when probing all display encoders
 - Fixup to module parameter type
 
 sun4i:
 - clock divider fix
 
 ast:
 - 24/32 bpp mode setting fix
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Merge tag 'drm-next-2020-06-11-1' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "One sun4i fix and a connector hotplug race The ast fix is for a
  regression in 5.6, and one of the i915 ones fixes an oops reported by
  dhowells.

  core:
   - fix race in connectors sending hotplug

  i915:
   - Avoid use after free in cmdparser
   - Avoid NULL dereference when probing all display encoders
   - Fixup to module parameter type

  sun4i:
   - clock divider fix

  ast:
   - 24/32 bpp mode setting fix"

* tag 'drm-next-2020-06-11-1' of git://anongit.freedesktop.org/drm/drm:
  drm/ast: fix missing break in switch statement for format->cpp[0] case 4
  drm/sun4i: hdmi ddc clk: Fix size of m divider
  drm/i915/display: Only query DP state of a DDI encoder
  drm/i915/params: fix i915.reset module param type
  drm/i915/gem: Mark the buffer pool as active for the cmdparser
  drm/connector: notify userspace on hotplug after register complete
2020-06-11 12:27:06 -07:00
Linus Torvalds a539568299 NFS Client Updates for Linux 5.8
New features and improvements:
 - Sunrpc receive buffer sizes only change when establishing a GSS credentials
 - Add more sunrpc tracepoints
 - Improve on tracepoints to capture internal NFS I/O errors
 
 Other bugfixes and cleanups:
 - Move a dprintk() to after a call to nfs_alloc_fattr()
 - Fix off-by-one issues in rpc_ntop6
 - Fix a few coccicheck warnings
 - Use the correct SPDX license identifiers
 - Fix rpc_call_done assignment for BIND_CONN_TO_SESSION
 - Replace zero-length array with flexible array
 - Remove duplicate headers
 - Set invalid blocks after NFSv4 writes to update space_used attribute
 - Fix direct WRITE throughput regression
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Merge tag 'nfs-for-5.8-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client updates from Anna Schumaker:
 "New features and improvements:
   - Sunrpc receive buffer sizes only change when establishing a GSS credentials
   - Add more sunrpc tracepoints
   - Improve on tracepoints to capture internal NFS I/O errors

  Other bugfixes and cleanups:
   - Move a dprintk() to after a call to nfs_alloc_fattr()
   - Fix off-by-one issues in rpc_ntop6
   - Fix a few coccicheck warnings
   - Use the correct SPDX license identifiers
   - Fix rpc_call_done assignment for BIND_CONN_TO_SESSION
   - Replace zero-length array with flexible array
   - Remove duplicate headers
   - Set invalid blocks after NFSv4 writes to update space_used attribute
   - Fix direct WRITE throughput regression"

* tag 'nfs-for-5.8-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (27 commits)
  NFS: Fix direct WRITE throughput regression
  SUNRPC: rpc_xprt lifetime events should record xprt->state
  xprtrdma: Make xprt_rdma_slot_table_entries static
  nfs: set invalid blocks after NFSv4 writes
  NFS: remove redundant initialization of variable result
  sunrpc: add missing newline when printing parameter 'auth_hashtable_size' by sysfs
  NFS: Add a tracepoint in nfs_set_pgio_error()
  NFS: Trace short NFS READs
  NFS: nfs_xdr_status should record the procedure name
  SUNRPC: Set SOFTCONN when destroying GSS contexts
  SUNRPC: rpc_call_null_helper() should set RPC_TASK_SOFT
  SUNRPC: rpc_call_null_helper() already sets RPC_TASK_NULLCREDS
  SUNRPC: trace RPC client lifetime events
  SUNRPC: Trace transport lifetime events
  SUNRPC: Split the xdr_buf event class
  SUNRPC: Add tracepoint to rpc_call_rpcerror()
  SUNRPC: Update the RPC_SHOW_SOCKET() macro
  SUNRPC: Update the rpc_show_task_flags() macro
  SUNRPC: Trace GSS context lifetimes
  SUNRPC: receive buffer size estimation values almost never change
  ...
2020-06-11 12:22:41 -07:00
Marco Elver 1f44328ea2 compiler_types.h, kasan: Use __SANITIZE_ADDRESS__ instead of CONFIG_KASAN to decide inlining
Use __always_inline in compilation units that have instrumentation
disabled (KASAN_SANITIZE_foo.o := n) for KASAN, like it is done for
KCSAN.

Also, add common documentation for KASAN and KCSAN explaining the
attribute.

 [ bp: Massage commit message. ]

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200521142047.169334-12-elver@google.com
2020-06-11 20:04:04 +02:00
Marco Elver eb73876c74 compiler.h: Move function attributes to compiler_types.h
Cleanup and move the KASAN and KCSAN related function attributes to
compiler_types.h, where the rest of the same kind live.

No functional change intended.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200521142047.169334-11-elver@google.com
2020-06-11 20:04:04 +02:00