sfrench/cifs-2.6.git
2 years agonfs: block notification on fs with its own ->lock
J. Bruce Fields [Thu, 16 Dec 2021 17:20:13 +0000 (12:20 -0500)]
nfs: block notification on fs with its own ->lock

NFSv4.1 supports an optional lock notification feature which notifies
the client when a lock comes available.  (Normally NFSv4 clients just
poll for locks if necessary.)  To make that work, we need to request a
blocking lock from the filesystem.

We turned that off for NFS in commit f657f8eef3ff ("nfs: don't atempt
blocking locks on nfs reexports") [sic] because it actually blocks the
nfsd thread while waiting for the lock.

Thanks to Vasily Averin for pointing out that NFS isn't the only
filesystem with that problem.

Any filesystem that leaves ->lock NULL will use posix_lock_file(), which
does the right thing.  Simplest is just to assume that any filesystem
that defines its own ->lock is not safe to request a blocking lock from.

So, this patch mostly reverts commit f657f8eef3ff ("nfs: don't atempt
blocking locks on nfs reexports") [sic] and commit b840be2f00c0 ("lockd:
don't attempt blocking locks on nfs reexports"), and instead uses a
check of ->lock (Vasily's suggestion) to decide whether to support
blocking lock notifications on a given filesystem.  Also add a little
documentation.

Perhaps someday we could add back an export flag later to allow
filesystems with "good" ->lock methods to support blocking lock
notifications.

Reported-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
[ cel: Description rewritten to address checkpatch nits ]
[ cel: Fixed warning when SUNRPC debugging is disabled ]
[ cel: Fixed NULL check ]
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Vasily Averin <vvs@virtuozzo.com>
2 years agoNFSD: De-duplicate nfsd4_decode_bitmap4()
Chuck Lever [Mon, 13 Dec 2021 15:20:45 +0000 (10:20 -0500)]
NFSD: De-duplicate nfsd4_decode_bitmap4()

Clean up. Trond points out that xdr_stream_decode_uint32_array()
does the same thing as nfsd4_decode_bitmap4().

Suggested-by: Trond Myklebust <trondmy@hammerspace.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agonfsd: improve stateid access bitmask documentation
J. Bruce Fields [Tue, 7 Dec 2021 22:32:21 +0000 (17:32 -0500)]
nfsd: improve stateid access bitmask documentation

The use of the bitmaps is confusing.  Add a cross-reference to make it
easier to find the existing comment.  Add an updated reference with URL
to make it quicker to look up.  And a bit more editorializing about the
value of this.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: Combine XDR error tracepoints
Chuck Lever [Thu, 21 Oct 2021 16:11:45 +0000 (12:11 -0400)]
NFSD: Combine XDR error tracepoints

Clean up: The garbage_args and cant_encode tracepoints report the
same information as each other, so combine them into a single
tracepoint class to reduce code duplication and slightly reduce the
size of trace.o.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoSUNRPC: Remove low signal-to-noise tracepoints
Chuck Lever [Tue, 19 Oct 2021 19:17:21 +0000 (15:17 -0400)]
SUNRPC: Remove low signal-to-noise tracepoints

I'm about to add more information to the server-side SUNRPC
tracepoints, so I'm going to offset the increased trace log
consumption by getting rid of some tracepoints that fire frequently
but don't offer much value.

trace_svc_xprt_received() was useful for debugging, perhaps, but
is not generally informative.

trace_svc_handle_xprt() reports largely the same information as
trace_svc_xdr_recvfrom().

As a clean-up, rename trace_svc_xprt_do_enqueue() to match
svc_xprt_dequeue().

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: simplify per-net file cache management
NeilBrown [Tue, 30 Nov 2021 23:58:14 +0000 (10:58 +1100)]
NFSD: simplify per-net file cache management

We currently have a 'laundrette' for closing cached files - a different
work-item for each network-namespace.

These 'laundrettes' (aka struct nfsd_fcache_disposal) are currently on a
list, and are freed using rcu.

The list is not necessary as we have a per-namespace structure (struct
nfsd_net) which can hold a link to the nfsd_fcache_disposal.
The use of kfree_rcu is also unnecessary as the cache is cleaned of all
files associated with a given namespace, and no new files can be added,
before the nfsd_fcache_disposal is freed.

So add a '->fcache_disposal' link to nfsd_net, and discard the list
management and rcu usage.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: Fix inconsistent indenting
Jiapeng Chong [Thu, 2 Dec 2021 08:35:42 +0000 (16:35 +0800)]
NFSD: Fix inconsistent indenting

Eliminate the follow smatch warning:

fs/nfsd/nfs4xdr.c:4766 nfsd4_encode_read_plus_hole() warn: inconsistent
indenting.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: Remove be32_to_cpu() from DRC hash function
Chuck Lever [Thu, 30 Sep 2021 23:10:03 +0000 (19:10 -0400)]
NFSD: Remove be32_to_cpu() from DRC hash function

Commit 7142b98d9fd7 ("nfsd: Clean up drc cache in preparation for
global spinlock elimination"), billed as a clean-up, added
be32_to_cpu() to the DRC hash function without explanation. That
commit removed two comments that state that byte-swapping in the
hash function is unnecessary without explaining whether there was
a need for that change.

On some Intel CPUs, the swab32 instruction is known to cause a CPU
pipeline stall. be32_to_cpu() does not add extra randomness, since
the hash multiplication is done /before/ shifting to the high-order
bits of the result.

As a micro-optimization, remove the unnecessary transform from the
DRC hash function.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFS: switch the callback service back to non-pooled.
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
NFS: switch the callback service back to non-pooled.

Now that thread management is consistent there is no need for
nfs-callback to use svc_create_pooled() as introduced in Commit
df807fffaabd ("NFSv4.x/callback: Create the callback service through
svc_create_pooled").  So switch back to svc_create().

If service pools were configured, but the number of threads were left at
'1', nfs callback may not work reliably when svc_create_pooled() is used.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agolockd: use svc_set_num_threads() for thread start and stop
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
lockd: use svc_set_num_threads() for thread start and stop

svc_set_num_threads() does everything that lockd_start_svc() does, except
set sv_maxconn.  It also (when passed 0) finds the threads and
stops them with kthread_stop().

So move the setting for sv_maxconn, and use svc_set_num_thread()

We now don't need nlmsvc_task.

Now that we use svc_set_num_threads() it makes sense to set svo_module.
This request that the thread exists with module_put_and_exit().
Also fix the documentation for svo_module to make this explicit.

svc_prepare_thread is now only used where it is defined, so it can be
made static.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoSUNRPC: always treat sv_nrpools==1 as "not pooled"
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
SUNRPC: always treat sv_nrpools==1 as "not pooled"

Currently 'pooled' services hold a reference on the pool_map, and
'unpooled' services do not.
svc_destroy() uses the presence of ->svo_function (via
svc_serv_is_pooled()) to determine if the reference should be dropped.
There is no direct correlation between being pooled and the use of
svo_function, though in practice, lockd is the only non-pooled service,
and the only one not to use svo_function.

This is untidy and would cause problems if we changed lockd to use
svc_set_num_threads(), which requires the use of ->svo_function.

So change the test for "is the service pooled" to "is sv_nrpools > 1".

This means that when svc_pool_map_get() returns 1, it must NOT take a
reference to the pool.

We discard svc_serv_is_pooled(), and test sv_nrpools directly.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoSUNRPC: move the pool_map definitions (back) into svc.c
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
SUNRPC: move the pool_map definitions (back) into svc.c

These definitions are not used outside of svc.c, and there is no
evidence that they ever have been.  So move them into svc.c
and make the declarations 'static'.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agolockd: rename lockd_create_svc() to lockd_get()
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
lockd: rename lockd_create_svc() to lockd_get()

lockd_create_svc() already does an svc_get() if the service already
exists, so it is more like a "get" than a "create".

So:
 - Move the increment of nlmsvc_users into the function as well
 - rename to lockd_get().

It is now the inverse of lockd_put().

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agolockd: introduce lockd_put()
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
lockd: introduce lockd_put()

There is some cleanup that is duplicated in lockd_down() and the failure
path of lockd_up().
Factor these out into a new lockd_put() and call it from both places.

lockd_put() does *not* take the mutex - that must be held by the caller.
It decrements nlmsvc_users and if that reaches zero, it cleans up.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agolockd: move svc_exit_thread() into the thread
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
lockd: move svc_exit_thread() into the thread

The normal place to call svc_exit_thread() is from the thread itself
just before it exists.
Do this for lockd.

This means that nlmsvc_rqst is not used out side of lockd_start_svc(),
so it can be made local to that function, and renamed to 'rqst'.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agolockd: move lockd_start_svc() call into lockd_create_svc()
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
lockd: move lockd_start_svc() call into lockd_create_svc()

lockd_start_svc() only needs to be called once, just after the svc is
created.  If the start fails, the svc is discarded too.

It thus makes sense to call lockd_start_svc() from lockd_create_svc().
This allows us to remove the test against nlmsvc_rqst at the start of
lockd_start_svc() - it must always be NULL.

lockd_up() only held an extra reference on the svc until a thread was
created - then it dropped it.  The thread - and thus the extra reference
- will remain until kthread_stop() is called.
Now that the thread is created in lockd_create_svc(), the extra
reference can be dropped there.  So the 'serv' variable is no longer
needed in lockd_up().

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agolockd: simplify management of network status notifiers
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
lockd: simplify management of network status notifiers

Now that the network status notifiers use nlmsvc_serv rather then
nlmsvc_rqst the management can be simplified.

Notifier unregistration synchronises with any pending notifications so
providing we unregister before nlm_serv is freed no further interlock
is required.

So we move the unregister call to just before the thread is killed
(which destroys the service) and just before the service is destroyed in
the failure-path of lockd_up().

Then nlm_ntf_refcnt and nlm_ntf_wq can be removed.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agolockd: introduce nlmsvc_serv
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
lockd: introduce nlmsvc_serv

lockd has two globals - nlmsvc_task and nlmsvc_rqst - but mostly it
wants the 'struct svc_serv', and when it doesn't want it exactly it can
get to what it wants from the serv.

This patch is a first step to removing nlmsvc_task and nlmsvc_rqst.  It
introduces nlmsvc_serv to store the 'struct svc_serv*'.  This is set as
soon as the serv is created, and cleared only when it is destroyed.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: simplify locking for network notifier.
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
NFSD: simplify locking for network notifier.

nfsd currently maintains an open-coded read/write semaphore (refcount
and wait queue) for each network namespace to ensure the nfs service
isn't shut down while the notifier is running.

This is excessive.  As there is unlikely to be contention between
notifiers and they run without sleeping, a single spinlock is sufficient
to avoid problems.

Signed-off-by: NeilBrown <neilb@suse.de>
[ cel: ensure nfsd_notifier_lock is static ]
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoSUNRPC: discard svo_setup and rename svc_set_num_threads_sync()
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
SUNRPC: discard svo_setup and rename svc_set_num_threads_sync()

The ->svo_setup callback serves no purpose.  It is always called from
within the same module that chooses which callback is needed.  So
discard it and call the relevant function directly.

Now that svc_set_num_threads() is no longer used remove it and rename
svc_set_num_threads_sync() to remove the "_sync" suffix.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: Make it possible to use svc_set_num_threads_sync
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
NFSD: Make it possible to use svc_set_num_threads_sync

nfsd cannot currently use svc_set_num_threads_sync.  It instead
uses svc_set_num_threads which does *not* wait for threads to all
exit, and has a separate mechanism (nfsd_shutdown_complete) to wait
for completion.

The reason that nfsd is unlike other services is that nfsd threads can
exit separately from svc_set_num_threads being called - they die on
receipt of SIGKILL.  Also, when the last thread exits, the service must
be shut down (sockets closed).

For this, the nfsd_mutex needs to be taken, and as that mutex needs to
be held while svc_set_num_threads is called, the one cannot wait for
the other.

This patch changes the nfsd thread so that it can drop the ref on the
service without blocking on nfsd_mutex, so that svc_set_num_threads_sync
can be used:
 - if it can drop a non-last reference, it does that.  This does not
   trigger shutdown and does not require a mutex.  This will likely
   happen for all but the last thread signalled, and for all threads
   being shut down by nfsd_shutdown_threads()
 - if it can get the mutex without blocking (trylock), it does that
   and then drops the reference.  This will likely happen for the
   last thread killed by SIGKILL
 - Otherwise there might be an unrelated task holding the mutex,
   possibly in another network namespace, or nfsd_shutdown_threads()
   might be just about to get a reference on the service, after which
   we can drop ours safely.
   We cannot conveniently get wakeup notifications on these events,
   and we are unlikely to need to, so we sleep briefly and check again.

With this we can discard nfsd_shutdown_complete and
nfsd_complete_shutdown(), and switch to svc_set_num_threads_sync.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: narrow nfsd_mutex protection in nfsd thread
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
NFSD: narrow nfsd_mutex protection in nfsd thread

There is nothing happening in the start of nfsd() that requires
protection by the mutex, so don't take it until shutting down the thread
- which does still require protection - but only for nfsd_put().

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoSUNRPC: use sv_lock to protect updates to sv_nrthreads.
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
SUNRPC: use sv_lock to protect updates to sv_nrthreads.

Using sv_lock means we don't need to hold the service mutex over these
updates.

In particular,  svc_exit_thread() no longer requires synchronisation, so
threads can exit asynchronously.

Note that we could use an atomic_t, but as there are many more read
sites than writes, that would add unnecessary noise to the code.
Some reads are already racy, and there is no need for them to not be.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agonfsd: make nfsd_stats.th_cnt atomic_t
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
nfsd: make nfsd_stats.th_cnt atomic_t

This allows us to move the updates for th_cnt out of the mutex.
This is a step towards reducing mutex coverage in nfsd().

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoSUNRPC: stop using ->sv_nrthreads as a refcount
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
SUNRPC: stop using ->sv_nrthreads as a refcount

The use of sv_nrthreads as a general refcount results in clumsy code, as
is seen by various comments needed to explain the situation.

This patch introduces a 'struct kref' and uses that for reference
counting, leaving sv_nrthreads to be a pure count of threads.  The kref
is managed particularly in svc_get() and svc_put(), and also nfsd_put();

svc_destroy() now takes a pointer to the embedded kref, rather than to
the serv.

nfsd allows the svc_serv to exist with ->sv_nrhtreads being zero.  This
happens when a transport is created before the first thread is started.
To support this, a 'keep_active' flag is introduced which holds a ref on
the svc_serv.  This is set when any listening socket is successfully
added (unless there are running threads), and cleared when the number of
threads is set.  So when the last thread exits, the nfs_serv will be
destroyed.
The use of 'keep_active' replaces previous code which checked if there
were any permanent sockets.

We no longer clear ->rq_server when nfsd() exits.  This was done
to prevent svc_exit_thread() from calling svc_destroy().
Instead we take an extra reference to the svc_serv to prevent
svc_destroy() from being called.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoSUNRPC/NFSD: clean up get/put functions.
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
SUNRPC/NFSD: clean up get/put functions.

svc_destroy() is poorly named - it doesn't necessarily destroy the svc,
it might just reduce the ref count.
nfsd_destroy() is poorly named for the same reason.

This patch:
 - removes the refcount functionality from svc_destroy(), moving it to
   a new svc_put().  Almost all previous callers of svc_destroy() now
   call svc_put().
 - renames nfsd_destroy() to nfsd_put() and improves the code, using
   the new svc_destroy() rather than svc_put()
 - removes a few comments that explain the important for balanced
   get/put calls.  This should be obvious.

The only non-trivial part of this is that svc_destroy() would call
svc_sock_update() on a non-final decrement.  It can no longer do that,
and svc_put() isn't really a good place of it.  This call is now made
from svc_exit_thread() which seems like a good place.  This makes the
call *before* sv_nrthreads is decremented rather than after.  This
is not particularly important as the call just sets a flag which
causes sv_nrthreads set be checked later.  A subsequent patch will
improve the ordering.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoSUNRPC: change svc_get() to return the svc.
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
SUNRPC: change svc_get() to return the svc.

It is common for 'get' functions to return the object that was 'got',
and there are a couple of places where users of svc_get() would be a
little simpler if svc_get() did that.

Make it so.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: handle errors better in write_ports_addfd()
NeilBrown [Mon, 29 Nov 2021 04:51:25 +0000 (15:51 +1100)]
NFSD: handle errors better in write_ports_addfd()

If write_ports_add() fails, we shouldn't destroy the serv, unless we had
only just created it.  So if there are any permanent sockets already
attached, leave the serv in place.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoNFSD: Fix sparse warning
Chuck Lever [Wed, 13 Oct 2021 20:44:20 +0000 (16:44 -0400)]
NFSD: Fix sparse warning

/home/cel/src/linux/linux/fs/nfsd/nfs4proc.c:1539:24: warning: incorrect type in assignment (different base types)
/home/cel/src/linux/linux/fs/nfsd/nfs4proc.c:1539:24:    expected restricted __be32 [usertype] status
/home/cel/src/linux/linux/fs/nfsd/nfs4proc.c:1539:24:    got int

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2 years agoLinux 5.16-rc5 v5.16-rc5
Linus Torvalds [Sun, 12 Dec 2021 22:53:01 +0000 (14:53 -0800)]
Linux 5.16-rc5

2 years agoMerge tag 'usb-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 12 Dec 2021 18:20:57 +0000 (10:20 -0800)]
Merge tag 'usb-5.16-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 5.16-rc5.  They include:

   - gadget driver fixes for reported issues

   - xhci fixes for reported problems.

   - config endpoint parsing fixes for where we got bitfields wrong

  Most of these have been in linux-next, the remaining few were not, but
  got lots of local testing in my systems and in some cloud testing
  infrastructures"

* tag 'usb-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: core: config: using bit mask instead of individual bits
  usb: core: config: fix validation of wMaxPacketValue entries
  USB: gadget: zero allocate endpoint 0 buffers
  USB: gadget: detect too-big endpoint 0 requests
  xhci: avoid race between disable slot command and host runtime suspend
  xhci: Remove CONFIG_USB_DEFAULT_PERSIST to prevent xHCI from runtime suspending
  Revert "usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default"

2 years agoMerge tag 'char-misc-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sun, 12 Dec 2021 18:16:34 +0000 (10:16 -0800)]
Merge tag 'char-misc-5.16-rc5' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are a bunch of small char/misc and other driver subsystem fixes.

  Included in here are:

   - iio driver fixes for reported problems

   - phy driver fixes for a number of reported problems

   - mhi resume bugfix for broken hardware

   - nvmem driver fix

   - rtsx driver fix for irq issues

   - fastrpc packet parsing fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (33 commits)
  bus: mhi: core: Add support for forced PM resume
  iio: trigger: stm32-timer: fix MODULE_ALIAS
  misc: rtsx: Avoid mangling IRQ during runtime PM
  nvmem: eeprom: at25: fix FRAM byte_len
  misc: fastrpc: fix improper packet size calculation
  MAINTAINERS: add maintainer for Qualcomm FastRPC driver
  bus: mhi: pci_generic: Fix device recovery failed issue
  iio: adc: stm32: fix null pointer on defer_probe error
  phy: HiSilicon: Fix copy and paste bug in error handling
  dt-bindings: phy: zynqmp-psgtr: fix USB phy name
  phy: ti: omap-usb2: Fix the kernel-doc style
  phy: qualcomm: ipq806x-usb: Fix kernel-doc style
  iio: at91-sama5d2: Fix incorrect sign extension
  iio: adc: axp20x_adc: fix charging current reporting on AXP22x
  iio: gyro: adxrs290: fix data signedness
  phy: ti: tusb1210: Fix the kernel-doc warn
  phy: qualcomm: usb-hsic: Fix the kernel-doc warn
  phy: qualcomm: qmp: Add missing struct documentation
  phy: mvebu-cp110-utmi: Fix kernel-doc warns
  iio: ad7768-1: Call iio_trigger_notify_done() on error
  ...

2 years agoMerge tag 'timers-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 12 Dec 2021 18:07:50 +0000 (10:07 -0800)]
Merge tag 'timers-urgent-2021-12-12' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "Two fixes for clock chip drivers:

   - A regression fix for the Designware APB timer. A recent change to
     the error checking code transformed the error condition wrongly so
     it turned into a fail if good condition.

   - Fix a clang build fail of the ARM architected timer driver"

* tag 'timers-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/arm_arch_timer: Force inlining of erratum_set_next_event_generic()
  clocksource/drivers/dw_apb_timer_of: Fix probe failure

2 years agoMerge tag 'irq-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 12 Dec 2021 17:53:12 +0000 (09:53 -0800)]
Merge tag 'irq-urgent-2021-12-12' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A set of interrupt chip driver fixes:

   - Fix the multi vector MSI allocation on Armada 370XP

   - Do interrupt acknowledgement correctly in the aspeed-scu driver

   - Make the IPR register offset correct in the NVIC driver

   - Make redistribution table flushing correct by issueing a SYNC
     command to ensure that the invalidation command has been executed

   - Plug a device tree node reference leak in the bcm7210-l2 driver

   - Trivial fixes in the MIPS GIC and the Apple AIC drivers"

* tag 'irq-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/irq-bcm7120-l2: Add put_device() after of_find_device_by_node()
  irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL
  irqchip/apple-aic: Mark aic_init_smp() as __init
  irqchip: nvic: Fix offset for Interrupt Priority Offsets
  irqchip/mips-gic: Use bitfield helpers
  irqchip/aspeed-scu: Replace update_bits with write_bits.
  irqchip/armada-370-xp: Fix support for Multi-MSI interrupts
  irqchip/armada-370-xp: Fix return value of armada_370_xp_msi_alloc()

2 years agoMerge tag 'sched-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 12 Dec 2021 17:38:04 +0000 (09:38 -0800)]
Merge tag 'sched-urgent-2021-12-12' of git://git./linux/kernel/git/tip/tip

Pull scheduler fix from Thomas Gleixner:
 "A single fix for the x86 scheduler topology:

  Using cluster topology on hybrid CPUs, e.g. Alder Lake, biases the
  scheduler towards the ATOM cluster as that has more total capacity.
  Use selection based on CPU priority instead"

* tag 'sched-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched,x86: Don't use cluster topology for x86 hybrid CPUs

2 years agoMerge tag 'csky-for-linus-5.16-rc5' of git://github.com/c-sky/csky-linux
Linus Torvalds [Sun, 12 Dec 2021 17:32:49 +0000 (09:32 -0800)]
Merge tag 'csky-for-linus-5.16-rc5' of git://github.com/c-sky/csky-linux

Pull csky from Guo Ren:
 "Only one fix for csky: fix fpu config macro"

* tag 'csky-for-linus-5.16-rc5' of git://github.com/c-sky/csky-linux:
  csky: fix typo of fpu config macro

2 years agousb: core: config: using bit mask instead of individual bits
Pavel Hofman [Fri, 10 Dec 2021 08:52:19 +0000 (09:52 +0100)]
usb: core: config: using bit mask instead of individual bits

Using standard USB_EP_MAXP_MULT_MASK instead of individual bits for
extracting multiple-transactions bits from wMaxPacketSize value.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20211210085219.16796-2-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agousb: core: config: fix validation of wMaxPacketValue entries
Pavel Hofman [Fri, 10 Dec 2021 08:52:18 +0000 (09:52 +0100)]
usb: core: config: fix validation of wMaxPacketValue entries

The checks performed by commit aed9d65ac327 ("USB: validate
wMaxPacketValue entries in endpoint descriptors") require that initial
value of the maxp variable contains both maximum packet size bits
(10..0) and multiple-transactions bits (12..11). However, the existing
code assings only the maximum packet size bits. This patch assigns all
bits of wMaxPacketSize to the variable.

Fixes: aed9d65ac327 ("USB: validate wMaxPacketValue entries in endpoint descriptors")
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20211210085219.16796-1-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoUSB: gadget: zero allocate endpoint 0 buffers
Greg Kroah-Hartman [Thu, 9 Dec 2021 18:02:15 +0000 (19:02 +0100)]
USB: gadget: zero allocate endpoint 0 buffers

Under some conditions, USB gadget devices can show allocated buffer
contents to a host.  Fix this up by zero-allocating them so that any
extra data will all just be zeros.

Reported-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Tested-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoUSB: gadget: detect too-big endpoint 0 requests
Greg Kroah-Hartman [Thu, 9 Dec 2021 17:59:27 +0000 (18:59 +0100)]
USB: gadget: detect too-big endpoint 0 requests

Sometimes USB hosts can ask for buffers that are too large from endpoint
0, which should not be allowed.  If this happens for OUT requests, stall
the endpoint, but for IN requests, trim the request size to the endpoint
buffer size.

Co-developed-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 12 Dec 2021 00:28:27 +0000 (16:28 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four fixes, all in drivers.

  Three are small and obvious, the qedi one is a bit larger but also
  pretty obvious"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: Format log strings only if needed
  scsi: scsi_debug: Fix buffer size of REPORT ZONES command
  scsi: qedi: Fix cmd_cleanup_cmpl counter mismatch issue
  scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()

2 years agoMerge tag 'xfs-5.16-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Sun, 12 Dec 2021 00:21:06 +0000 (16:21 -0800)]
Merge tag 'xfs-5.16-fixes-3' of git://git./fs/xfs/xfs-linux

Pull xfs fix from Darrick Wong:
 "This fixes a race between a readonly remount process and other
  processes that hold a file IOLOCK on files that previously experienced
  copy on write, that could result in severe filesystem corruption if
  the filesystem is then remounted rw.

  I think this is fairly rare (since the only reliable reproducer I have
  that fits the second criteria is the experimental xfs_scrub program),
  but the race is clear, so we still need to fix this.

  Summary:

   - Fix a data corruption vector that can result from the ro remount
     process failing to clear all speculative preallocations from files
     and the rw remount process not noticing the incomplete cleanup"

* tag 'xfs-5.16-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: remove all COW fork extents when remounting readonly

2 years agoMerge branch 'for-5.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis...
Linus Torvalds [Sun, 12 Dec 2021 00:14:17 +0000 (16:14 -0800)]
Merge branch 'for-5.16-fixes' of git://git./linux/kernel/git/dennis/percpu

Pull percpu fixes from Dennis Zhou:
 "This contains a fix for SMP && !MMU archs for percpu which has been
  tested by arm and sh. It seems in the past they have gotten away with
  it due to mapping of vm functions to km functions, but this fell apart
  a few releases ago and was just reported recently.

  The other is just a minor dependency clean up.

  I think queued up right now by Andrew is a fix in percpu that papers
  of what seems to be a bug in hotplug for a special situation with
  memoryless nodes. Michal Hocko is digging into it further"

* 'for-5.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
  percpu_ref: Replace kernel.h with the necessary inclusions
  percpu: km: ensure it is used with NOMMU (either UP or SMP)

2 years agoMerge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sat, 11 Dec 2021 21:28:02 +0000 (13:28 -0800)]
Merge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Prevent out-of-bounds access to per sample registers.

 - Fix NULL vs IS_ERR_OR_NULL() checking on the python binding.

 - Intel PT fixes, half of those are one-liners:
      - Fix some PGE (packet generation enable/control flow packets) usage.
      - Fix sync state when a PSB (synchronization) packet is found.
      - Fix intel_pt_fup_event() assumptions about setting state type.
      - Fix state setting when receiving overflow (OVF) packet.
      - Fix next 'err' value, walking trace.
      - Fix missing 'instruction' events with 'q' option.
      - Fix error timestamp setting on the decoder error path.

* tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf python: Fix NULL vs IS_ERR_OR_NULL() checking
  perf intel-pt: Fix error timestamp setting on the decoder error path
  perf intel-pt: Fix missing 'instruction' events with 'q' option
  perf intel-pt: Fix next 'err' value, walking trace
  perf intel-pt: Fix state setting when receiving overflow (OVF) packet
  perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
  perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
  perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
  perf tools: Prevent out-of-bounds access to registers

2 years agoMerge tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 11 Dec 2021 17:25:07 +0000 (09:25 -0800)]
Merge tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few block fixes that should go into this release:

   - NVMe pull request:
        - set ana_log_size to 0 after freeing ana_log_buf (Hou Tao)
        - show subsys nqn for duplicate cntlids (Keith Busch)
        - disable namespace access for unsupported metadata (Keith
          Busch)
        - report write pointer for a full zone as zone start + zone len
          (Niklas Cassel)
        - fix use after free when disconnecting a reconnecting ctrl
          (Ruozhu Li)
        - fix a list corruption in nvmet-tcp (Sagi Grimberg)

   - Fix for a regression on DIO single bio async IO (Pavel)

   - ioprio seteuid fix (Davidlohr)

   - mtd fix that subsequently got reverted as it was broken, will get
     re-done and submitted for the next round

   - Two MD fixes via Song (Markus, zhangyue)"

* tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
  Revert "mtd_blkdevs: don't scan partitions for plain mtdblock"
  block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
  md: fix double free of mddev->private in autorun_array()
  md: fix update super 1.0 on rdev size change
  nvmet-tcp: fix possible list corruption for unexpected command failure
  block: fix single bio async DIO error handling
  nvme: fix use after free when disconnecting a reconnecting ctrl
  nvme-multipath: set ana_log_size to 0 after free ana_log_buf
  mtd_blkdevs: don't scan partitions for plain mtdblock
  nvme: report write pointer for a full zone as zone start + zone len
  nvme: disable namespace access for unsupported metadata
  nvme: show subsys nqn for duplicate cntlids

2 years agoMerge tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 11 Dec 2021 17:19:44 +0000 (09:19 -0800)]
Merge tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "A few fixes that are all bound for stable:

   - Two syzbot reports for io-wq that turned out to be separate fixes,
     but ultimately very closely related

   - io_uring task_work running on cancelations"

* tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
  io-wq: check for wq exit after adding new worker task_work
  io_uring: ensure task_work gets run as part of cancelations
  io-wq: remove spurious bit clear on task_work addition

2 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 11 Dec 2021 17:09:59 +0000 (09:09 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two more I2C driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: mpc: Use atomic read and fix break condition
  i2c: virtio: fix completion handling

2 years agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 11 Dec 2021 17:06:08 +0000 (09:06 -0800)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk driver fixes from Stephen Boyd:

 - Fix qcom mux logic to look at the proper parent table member. Luckily
   this clk type isn't very common.

 - Don't kill clks on qcom systems that use Trion PLLs that are enabled
   out of the bootloader. We will simply skip programming the PLL rate
   if it's already done.

 - Use the proper clk_ops for the qcom sm6125 ICE clks.

 - Use module_platform_driver() in i.MX as it can be a module.

 - Fix a UAF in the versatile clk driver on an error path.

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: versatile: clk-icst: use after free on error path
  clk: qcom: sm6125-gcc: Swap ops of ice and apps on sdcc1
  clk: imx: use module_platform_driver
  clk: qcom: clk-alpha-pll: Don't reconfigure running Trion
  clk: qcom: regmap-mux: fix parent clock lookup

2 years agoMerge tag 'devicetree-fixes-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 11 Dec 2021 16:58:04 +0000 (08:58 -0800)]
Merge tag 'devicetree-fixes-for-5.16-2' of git://git./linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Revert schema checks on %.dtb targets. This was problematic for some
   external build tools.

 - A few DT binding example fixes

 - Add back dropped 'enet-phy-lane-no-swap' Ethernet PHY property

 - Drop erroneous if/then schema in nxp,imx7-mipi-csi2

 - Add a quirk to fix some interrupt controllers use of 'interrupt-map'

* tag 'devicetree-fixes-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  Revert "kbuild: Enable DT schema checks for %.dtb targets"
  dt-bindings: bq25980: Fixup the example
  dt-bindings: input: gpio-keys: Fix interrupts in example
  dt-bindings: net: Reintroduce PHY no lane swap binding
  dt-bindings: media: nxp,imx7-mipi-csi2: Drop bad if/then schema
  of/irq: Add a quirk for controllers with their own definition of interrupt-map
  dt-bindings: iio: adc: exynos-adc: Fix node name in example

2 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Sat, 11 Dec 2021 16:46:52 +0000 (08:46 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "21 patches.

  Subsystems affected by this patch series: MAINTAINERS, mailmap, and mm
  (mlock, pagecache, damon, slub, memcg, hugetlb, and pagecache)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (21 commits)
  mm: bdi: initialize bdi_min_ratio when bdi is unregistered
  hugetlbfs: fix issue of preallocation of gigantic pages can't work
  mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
  mm/slub: fix endianness bug for alloc/free_traces attributes
  selftests/damon: split test cases
  selftests/damon: test debugfs file reads/writes with huge count
  selftests/damon: test wrong DAMOS condition ranges input
  selftests/damon: test DAMON enabling with empty target_ids case
  selftests/damon: skip test if DAMON is running
  mm/damon/vaddr-test: remove unnecessary variables
  mm/damon/vaddr-test: split a test function having >1024 bytes frame size
  mm/damon/vaddr: remove an unnecessary warning message
  mm/damon/core: remove unnecessary error messages
  mm/damon/dbgfs: remove an unnecessary error message
  mm/damon/core: use better timer mechanisms selection threshold
  mm/damon/core: fix fake load reports due to uninterruptible sleeps
  timers: implement usleep_idle_range()
  filemap: remove PageHWPoison check from next_uptodate_page()
  mailmap: update email address for Guo Ren
  MAINTAINERS: update kdump maintainers
  ...

2 years agoMerge tag 'timers-v5.16-rc4' of https://git.linaro.org/people/daniel.lezcano/linux...
Thomas Gleixner [Sat, 11 Dec 2021 12:56:30 +0000 (13:56 +0100)]
Merge tag 'timers-v5.16-rc4' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent

Pull timer fixes from Daniel Lezcano:

  - Fix build error with clang and some kernel configuration on the
    arm64 architected timer by inlining the
    erratum_set_next_event_generic() function (Marc Zyngier)

  - Fix probe error on the dw_apb_timer_of driver by fixing the
    incorrect condition previously introduced (Alexey Sheplyakov)

Link: https://lore.kernel.org/r/429b796d-9395-4ca8-81f3-30911f80a9a9@linaro.org
2 years agoperf python: Fix NULL vs IS_ERR_OR_NULL() checking
Miaoqian Lin [Sat, 11 Dec 2021 05:38:53 +0000 (05:38 +0000)]
perf python: Fix NULL vs IS_ERR_OR_NULL() checking

The function trace_event__tp_format_id may return ERR_PTR(-ENOMEM).  Use
IS_ERR_OR_NULL to check tp_format.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Link: http://lore.kernel.org/lkml/20211211053856.19827-1-linmq006@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix error timestamp setting on the decoder error path
Adrian Hunter [Fri, 10 Dec 2021 16:23:03 +0000 (18:23 +0200)]
perf intel-pt: Fix error timestamp setting on the decoder error path

An error timestamp shows the last known timestamp for the queue, but this
is not updated on the error path. Fix by setting it.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix missing 'instruction' events with 'q' option
Adrian Hunter [Fri, 10 Dec 2021 16:23:02 +0000 (18:23 +0200)]
perf intel-pt: Fix missing 'instruction' events with 'q' option

FUP packets contain IP information, which makes them also an 'instruction'
event in 'hop' mode i.e. the itrace 'q' option.  That wasn't happening, so
restructure the logic so that FUP events are added along with appropriate
'instruction' and 'branch' events.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix next 'err' value, walking trace
Adrian Hunter [Fri, 10 Dec 2021 16:23:01 +0000 (18:23 +0200)]
perf intel-pt: Fix next 'err' value, walking trace

Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero,
but it may not be, if arrived at via a 'goto'. Ensure it is zero.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix state setting when receiving overflow (OVF) packet
Adrian Hunter [Fri, 10 Dec 2021 16:23:00 +0000 (18:23 +0200)]
perf intel-pt: Fix state setting when receiving overflow (OVF) packet

An overflow (OVF packet) is treated as an error because it represents a
loss of trace data, but there is no loss of synchronization, so the packet
state should be INTEL_PT_STATE_IN_SYNC not INTEL_PT_STATE_ERR_RESYNC.

To support that, some additional variables must be reset, and the FUP
packet that may follow OVF is treated as an FUP event.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
Adrian Hunter [Fri, 10 Dec 2021 16:22:59 +0000 (18:22 +0200)]
perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type

intel_pt_fup_event() assumes it can overwrite the state type if there has
been an FUP event, but this is an unnecessary and unexpected constraint on
callers.

Fix by touching only the state type flags that are affected by an FUP
event.

Fixes: a472e65fc490a ("perf intel-pt: Add decoder support for ptwrite and power event packets")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix sync state when a PSB (synchronization) packet is found
Adrian Hunter [Fri, 10 Dec 2021 16:22:58 +0000 (18:22 +0200)]
perf intel-pt: Fix sync state when a PSB (synchronization) packet is found

When syncing, it may be that branch packet generation is not enabled at
that point, in which case there will not immediately be a control-flow
packet, so some packets before a control flow packet turns up, get
ignored.  However, the decoder is in sync as soon as a PSB is found, so
the state should be set accordingly.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
Adrian Hunter [Fri, 10 Dec 2021 16:22:57 +0000 (18:22 +0200)]
perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage

Packet generation enable (PGE) refers to whether control flow (COFI)
packets are being produced.

PGE may be false even when branch-tracing is enabled, due to being
out-of-context, or outside a filter address range.  Fix some missing PGE
usage.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Fixes: 839598176b0554 ("perf intel-pt: Allow decoding with branch tracing disabled")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf tools: Prevent out-of-bounds access to registers
German Gomez [Wed, 1 Dec 2021 12:33:29 +0000 (12:33 +0000)]
perf tools: Prevent out-of-bounds access to registers

The size of the cache of register values is arch-dependant
(PERF_REGS_MAX). This has the potential of causing an out-of-bounds
access in the function "perf_reg_value" if the local architecture
contains less registers than the one the perf.data file was recorded on.

Since the maximum number of registers is bound by the bitmask "u64
cache_mask", and the size of the cache when running under x86 systems is
64 already, fix the size to 64 and add a range-check to the function
"perf_reg_value" to prevent out-of-bounds access.

Reported-by: Alexandre Truong <alexandre.truong@arm.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-csky@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Link: https://lore.kernel.org/r/20211201123334.679131-2-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoMerge tag 'irqchip-fixes-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Thomas Gleixner [Sat, 11 Dec 2021 09:51:23 +0000 (10:51 +0100)]
Merge tag 'irqchip-fixes-5.16-2' of git://git./linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

 - Fix Armada-370-XP Multi-MSi allocation to be aligned on the allocation
   size, as required by the PCI spec

 - Fix aspeed-scu interrupt acknowledgement by directly writing to the
   register instead of a read-modify-write sequence

 - Use standard bitfirl helpers in the MIPS GIC driver instead of custom
   constructs

 - Fix the NVIC driver IPR register offset

 - Correctly drop the reference of the device node in the irq-bcm7120-l2
   driver

 - Fix the GICv3 ITS INVALL command by issueing a following SYNC command

 - Add a missing __init attribute to the init function of the Apple AIC
   driver

Link: https://lore.kernel.org/r/20211210133516.664497-1-maz@kernel.org
2 years agoMerge tag 'for-5.16-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sat, 11 Dec 2021 01:28:02 +0000 (17:28 -0800)]
Merge tag 'for-5.16-rc4-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few more regression fixes and stable patches, mostly one-liners.

  Regression fixes:

   - fix pointer/ERR_PTR mismatch returned from memdup_user

   - reset dedicated zoned mode relocation block group to avoid using it
     and filling it without any recourse

  Fixes:

   - handle a case to FITRIM range (also to make fstests/generic/260
     work)

   - fix warning when extent buffer state and pages get out of sync
     after an IO error

   - fix transaction abort when syncing due to missing mapping error set
     on metadata inode after inlining a compressed file

   - fix transaction abort due to tree-log and zoned mode interacting in
     an unexpected way

   - fix memory leak of additional extent data when qgroup reservation
     fails

   - do proper handling of slot search call when deleting root refs"

* tag 'for-5.16-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: replace the BUG_ON in btrfs_del_root_ref with proper error handling
  btrfs: zoned: clear data relocation bg on zone finish
  btrfs: free exchange changeset on failures
  btrfs: fix re-dirty process of tree-log nodes
  btrfs: call mapping_set_error() on btree inode with a write error
  btrfs: clear extent buffer uptodate when we fail to write it
  btrfs: fail if fstrim_range->start == U64_MAX
  btrfs: fix error pointer dereference in btrfs_ioctl_rm_dev_v2()

2 years agoMerge tag '5.16-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 11 Dec 2021 01:24:57 +0000 (17:24 -0800)]
Merge tag '5.16-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Two cifs/smb3 fixes - one for stable, the other fixes a recently
  reported NTLMSSP auth problem"

* tag '5.16-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix ntlmssp auth when there is no key exchange
  cifs: Fix crash on unload of cifs_arc4.ko

2 years agoMerge tag 'nfsd-5.16-2' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Sat, 11 Dec 2021 01:17:53 +0000 (17:17 -0800)]
Merge tag 'nfsd-5.16-2' of git://linux-nfs.org/~bfields/linux

Pull nfsd fixes from Bruce Fields:
 "Fix a race on startup and another in the delegation code.

  The latter has been around for years, but I suspect recent changes may
  have widened the race window a little, so I'd like to go ahead and get
  it in"

* tag 'nfsd-5.16-2' of git://linux-nfs.org/~bfields/linux:
  nfsd: fix use-after-free due to delegation race
  nfsd: Fix nsfd startup race (again)

2 years agomm: bdi: initialize bdi_min_ratio when bdi is unregistered
Manjong Lee [Fri, 10 Dec 2021 22:47:11 +0000 (14:47 -0800)]
mm: bdi: initialize bdi_min_ratio when bdi is unregistered

Initialize min_ratio if it is set during bdi unregistration.  This can
prevent problems that may occur a when bdi is removed without resetting
min_ratio.

For example.
1) insert external sdcard
2) set external sdcard's min_ratio 70
3) remove external sdcard without setting min_ratio 0
4) insert external sdcard
5) set external sdcard's min_ratio 70 << error occur(can't set)

Because when an sdcard is removed, the present bdi_min_ratio value will
remain.  Currently, the only way to reset bdi_min_ratio is to reboot.

[akpm@linux-foundation.org: tweak comment and coding style]

Link: https://lkml.kernel.org/r/20211021161942.5983-1-mj0123.lee@samsung.com
Signed-off-by: Manjong Lee <mj0123.lee@samsung.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Changheun Lee <nanich.lee@samsung.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <seunghwan.hyun@samsung.com>
Cc: <sookwan7.kim@samsung.com>
Cc: <yt0928.kim@samsung.com>
Cc: <junho89.kim@samsung.com>
Cc: <jisoo2146.oh@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agohugetlbfs: fix issue of preallocation of gigantic pages can't work
Zhenguo Yao [Fri, 10 Dec 2021 22:47:08 +0000 (14:47 -0800)]
hugetlbfs: fix issue of preallocation of gigantic pages can't work

Preallocation of gigantic pages can't work bacause of commit
b5389086ad7b ("hugetlbfs: extend the definition of hugepages parameter
to support node allocation").  When nid is NUMA_NO_NODE(-1),
alloc_bootmem_huge_page will always return without doing allocation.
Fix this by adding more check.

Link: https://lkml.kernel.org/r/20211129133803.15653-1-yaozhenguo1@gmail.com
Fixes: b5389086ad7b ("hugetlbfs: extend the definition of hugepages parameter to support node allocation")
Signed-off-by: Zhenguo Yao <yaozhenguo1@gmail.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Tested-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
Waiman Long [Fri, 10 Dec 2021 22:47:05 +0000 (14:47 -0800)]
mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()

All the calls to mod_objcg_mlstate(), get_obj_stock() and
put_obj_stock() are done by functions defined within the same "#ifdef
CONFIG_MEMCG_KMEM" compilation block.  When CONFIG_MEMCG_KMEM isn't
defined, the following compilation warnings will be issued [1] and [2].

  mm/memcontrol.c:785:20: warning: unused function 'mod_objcg_mlstate'
  mm/memcontrol.c:2113:33: warning: unused function 'get_obj_stock'

Fix these warning by moving those functions to under the same
CONFIG_MEMCG_KMEM compilation block.  There is no functional change.

[1] https://lore.kernel.org/lkml/202111272014.WOYNLUV6-lkp@intel.com/
[2] https://lore.kernel.org/lkml/202111280551.LXsWYt1T-lkp@intel.com/

Link: https://lkml.kernel.org/r/20211129161140.306488-1-longman@redhat.com
Fixes: 559271146efc ("mm/memcg: optimize user context object stock access")
Fixes: 68ac5b3c8db2 ("mm/memcg: cache vmstat data in percpu memcg_stock_pcp")
Signed-off-by: Waiman Long <longman@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/slub: fix endianness bug for alloc/free_traces attributes
Gerald Schaefer [Fri, 10 Dec 2021 22:47:02 +0000 (14:47 -0800)]
mm/slub: fix endianness bug for alloc/free_traces attributes

On big-endian s390, the alloc/free_traces attributes produce endless
output, because of always 0 idx in slab_debugfs_show().

idx is de-referenced from *v, which points to a loff_t value, with

    unsigned int idx = *(unsigned int *)v;

This will only give the upper 32 bits on big-endian, which remain 0.

Instead of only fixing this de-reference, during discussion it seemed
more appropriate to change the seq_ops so that they use an explicit
iterator in private loc_track struct.

This patch adds idx to loc_track, which will also fix the endianness
bug.

Link: https://lore.kernel.org/r/20211117193932.4049412-1-gerald.schaefer@linux.ibm.com
Link: https://lkml.kernel.org/r/20211126171848.17534-1-gerald.schaefer@linux.ibm.com
Fixes: 64dd68497be7 ("mm: slub: move sysfs slab alloc/free interfaces to debugfs")
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Reported-by: Steffen Maier <maier@linux.ibm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: split test cases
SeongJae Park [Fri, 10 Dec 2021 22:46:59 +0000 (14:46 -0800)]
selftests/damon: split test cases

Currently, the single test program, debugfs.sh, contains all test cases
for DAMON.  When one of the cases fails, finding which case is failed
from the test log is not so easy, and all remaining tests will be
skipped.  To improve the situation, this commit splits the single
program into small test programs having their own names.

Link: https://lkml.kernel.org/r/20211201150440.1088-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: test debugfs file reads/writes with huge count
SeongJae Park [Fri, 10 Dec 2021 22:46:55 +0000 (14:46 -0800)]
selftests/damon: test debugfs file reads/writes with huge count

DAMON debugfs interface users were able to trigger warning by writing
some files with arbitrarily large 'count' parameter.  The issue is fixed
with commit db7a347b26fe ("mm/damon/dbgfs: use '__GFP_NOWARN' for
user-specified size buffer allocation").  This commit adds a test case
for the issue in DAMON selftests to avoid future regressions.

Link: https://lkml.kernel.org/r/20211201150440.1088-11-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: test wrong DAMOS condition ranges input
SeongJae Park [Fri, 10 Dec 2021 22:46:52 +0000 (14:46 -0800)]
selftests/damon: test wrong DAMOS condition ranges input

A patch titled "mm/damon/schemes: add the validity judgment of
thresholds"[1] makes DAMON debugfs interface to validate DAMON scheme
inputs.  This commit adds a test case for the validation logic in DAMON
selftests.

[1] https://lore.kernel.org/linux-mm/d78360e52158d786fcbf20bc62c96785742e76d3.1637239568.git.xhao@linux.alibaba.com/

Link: https://lkml.kernel.org/r/20211201150440.1088-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: test DAMON enabling with empty target_ids case
SeongJae Park [Fri, 10 Dec 2021 22:46:49 +0000 (14:46 -0800)]
selftests/damon: test DAMON enabling with empty target_ids case

DAMON debugfs didn't check empty targets when starting monitoring, and
the issue is fixed with commit b5ca3e83ddb0 ("mm/damon/dbgfs: add
adaptive_targets list check before enable monitor_on").  To avoid future
regression, this commit adds a test case for that in DAMON selftests.

Link: https://lkml.kernel.org/r/20211201150440.1088-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoselftests/damon: skip test if DAMON is running
SeongJae Park [Fri, 10 Dec 2021 22:46:46 +0000 (14:46 -0800)]
selftests/damon: skip test if DAMON is running

Testing the DAMON debugfs files while DAMON is running makes no sense,
as any write to the debugfs files will fail.  This commit makes the test
be skipped in this case.

Link: https://lkml.kernel.org/r/20211201150440.1088-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/vaddr-test: remove unnecessary variables
SeongJae Park [Fri, 10 Dec 2021 22:46:43 +0000 (14:46 -0800)]
mm/damon/vaddr-test: remove unnecessary variables

A couple of test functions in DAMON virtual address space monitoring
primitives implementation has unnecessary damon_ctx variables.  This
commit removes those.

Link: https://lkml.kernel.org/r/20211201150440.1088-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/vaddr-test: split a test function having >1024 bytes frame size
SeongJae Park [Fri, 10 Dec 2021 22:46:40 +0000 (14:46 -0800)]
mm/damon/vaddr-test: split a test function having >1024 bytes frame size

On some configuration[1], 'damon_test_split_evenly()' kunit test
function has >1024 bytes frame size, so below build warning is
triggered:

      CC      mm/damon/vaddr.o
    In file included from mm/damon/vaddr.c:672:
    mm/damon/vaddr-test.h: In function 'damon_test_split_evenly':
    mm/damon/vaddr-test.h:309:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=]
      309 | }
          | ^

This commit fixes the warning by separating the common logic in the
function.

[1] https://lore.kernel.org/linux-mm/202111182146.OV3C4uGr-lkp@intel.com/

Link: https://lkml.kernel.org/r/20211201150440.1088-6-sj@kernel.org
Fixes: 17ccae8bb5c9 ("mm/damon: add kunit tests")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/vaddr: remove an unnecessary warning message
SeongJae Park [Fri, 10 Dec 2021 22:46:37 +0000 (14:46 -0800)]
mm/damon/vaddr: remove an unnecessary warning message

The DAMON virtual address space monitoring primitive prints a warning
message for wrong DAMOS action.  However, it is not essential as the
code returns appropriate failure in the case.  This commit removes the
message to make the log clean.

Link: https://lkml.kernel.org/r/20211201150440.1088-5-sj@kernel.org
Fixes: 6dea8add4d28 ("mm/damon/vaddr: support DAMON-based Operation Schemes")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/core: remove unnecessary error messages
SeongJae Park [Fri, 10 Dec 2021 22:46:34 +0000 (14:46 -0800)]
mm/damon/core: remove unnecessary error messages

DAMON core prints error messages when damon_target object creation is
failed or wrong monitoring attributes are given.  Because appropriate
error code is returned for each case, the messages are not essential.
Also, because the code path can be triggered with user-specified input,
this could result in kernel log mistakenly being messy.  To avoid the
case, this commit removes the messages.

Link: https://lkml.kernel.org/r/20211201150440.1088-4-sj@kernel.org
Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface")
Fixes: b9a6ac4e4ede ("mm/damon: adaptively adjust regions")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/dbgfs: remove an unnecessary error message
SeongJae Park [Fri, 10 Dec 2021 22:46:31 +0000 (14:46 -0800)]
mm/damon/dbgfs: remove an unnecessary error message

When wrong scheme action is requested via the debugfs interface, DAMON
prints an error message.  Because the function returns error code, this
is not really needed.  Because the code path is triggered by the user
specified input, this can result in kernel log mistakenly being messy.
To avoid the case, this commit removes the message.

Link: https://lkml.kernel.org/r/20211201150440.1088-3-sj@kernel.org
Fixes: af122dd8f3c0 ("mm/damon/dbgfs: support DAMON-based Operation Schemes")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/core: use better timer mechanisms selection threshold
SeongJae Park [Fri, 10 Dec 2021 22:46:28 +0000 (14:46 -0800)]
mm/damon/core: use better timer mechanisms selection threshold

Patch series "mm/damon: Trivial fixups and improvements".

This patchset contains trivial fixups and improvements for DAMON and its
kunit/kselftest tests.

This patch (of 11):

DAMON is using hrtimer if requested sleep time is <=100ms, while the
suggested threshold[1] is <=20ms.  This commit applies the threshold.

[1] Documentation/timers/timers-howto.rst

Link: https://lkml.kernel.org/r/20211201150440.1088-2-sj@kernel.org
Fixes: ee801b7dd7822 ("mm/damon/schemes: activate schemes based on a watermarks mechanism")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomm/damon/core: fix fake load reports due to uninterruptible sleeps
SeongJae Park [Fri, 10 Dec 2021 22:46:25 +0000 (14:46 -0800)]
mm/damon/core: fix fake load reports due to uninterruptible sleeps

Because DAMON sleeps in uninterruptible mode, /proc/loadavg reports fake
load while DAMON is turned on, though it is doing nothing.  This can
confuse users[1].  To avoid the case, this commit makes DAMON sleeps in
idle mode.

[1] https://lore.kernel.org/all/11868371.O9o76ZdvQC@natalenko.name/

Link: https://lkml.kernel.org/r/20211126145015.15862-3-sj@kernel.org
Fixes: 2224d8485492 ("mm: introduce Data Access MONitor (DAMON)")
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: SeongJae Park <sj@kernel.org>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agotimers: implement usleep_idle_range()
SeongJae Park [Fri, 10 Dec 2021 22:46:22 +0000 (14:46 -0800)]
timers: implement usleep_idle_range()

Patch series "mm/damon: Fix fake /proc/loadavg reports", v3.

This patchset fixes DAMON's fake load report issue.  The first patch
makes yet another variant of usleep_range() for this fix, and the second
patch fixes the issue of DAMON by making it using the newly introduced
function.

This patch (of 2):

Some kernel threads such as DAMON could need to repeatedly sleep in
micro seconds level.  Because usleep_range() sleeps in uninterruptible
state, however, such threads would make /proc/loadavg reports fake load.

To help such cases, this commit implements a variant of usleep_range()
called usleep_idle_range().  It is same to usleep_range() but sets the
state of the current task as TASK_IDLE while sleeping.

Link: https://lkml.kernel.org/r/20211126145015.15862-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211126145015.15862-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: John Stultz <john.stultz@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agofilemap: remove PageHWPoison check from next_uptodate_page()
Matthew Wilcox (Oracle) [Fri, 10 Dec 2021 22:46:18 +0000 (14:46 -0800)]
filemap: remove PageHWPoison check from next_uptodate_page()

Pages are individually marked as suffering from hardware poisoning.
Checking that the head page is not hardware poisoned doesn't make
sense; we might be after a subpage.  We check each page individually
before we use it, so this was an optimisation gone wrong.  It will
cause us to fall back to the slow path when there was no need to do
that

Link: https://lkml.kernel.org/r/20211120174429.2596303-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agomailmap: update email address for Guo Ren
Guo Ren [Fri, 10 Dec 2021 22:46:15 +0000 (14:46 -0800)]
mailmap: update email address for Guo Ren

The ren_guo@c-sky.com would be deprecated and use guoren@kernel.org as the
main email address.

Link: https://lkml.kernel.org/r/20211123022741.545541-1-guoren@kernel.org
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoMAINTAINERS: update kdump maintainers
Dave Young [Fri, 10 Dec 2021 22:46:12 +0000 (14:46 -0800)]
MAINTAINERS: update kdump maintainers

Remove myself from kdump maintainers as I have no enough time to maintain
it now.  But I can review patches on demand though.

Link: https://lkml.kernel.org/r/YZyKilzKFsWJYdgn@dhcp-128-65.nay.redhat.com
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoIncrease default MLOCK_LIMIT to 8 MiB
Drew DeVault [Fri, 10 Dec 2021 22:46:09 +0000 (14:46 -0800)]
Increase default MLOCK_LIMIT to 8 MiB

This limit has not been updated since 2008, when it was increased to 64
KiB at the request of GnuPG.  Until recently, the main use-cases for this
feature were (1) preventing sensitive memory from being swapped, as in
GnuPG's use-case; and (2) real-time use-cases.  In the first case, little
memory is called for, and in the second case, the user is generally in a
position to increase it if they need more.

The introduction of IOURING_REGISTER_BUFFERS adds a third use-case:
preparing fixed buffers for high-performance I/O.  This use-case will take
as much of this memory as it can get, but is still limited to 64 KiB by
default, which is very little.  This increases the limit to 8 MB, which
was chosen fairly arbitrarily as a more generous, but still conservative,
default value.

It is also possible to raise this limit in userspace.  This is easily
done, for example, in the use-case of a network daemon: systemd, for
instance, provides for this via LimitMEMLOCK in the service file; OpenRC
via the rc_ulimit variables.  However, there is no established userspace
facility for configuring this outside of daemons: end-user applications do
not presently have access to a convenient means of raising their limits.

The buck, as it were, stops with the kernel.  It's much easier to address
it here than it is to bring it to hundreds of distributions, and it can
only realistically be relied upon to be high-enough by end-user software
if it is more-or-less ubiquitous.  Most distros don't change this
particular rlimit from the kernel-supplied default value, so a change here
will easily provide that ubiquity.

Link: https://lkml.kernel.org/r/20211028080813.15966-1-sir@cmpwn.com
Signed-off-by: Drew DeVault <sir@cmpwn.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Andrew Dona-Couch <andrew@donacou.ch>
Cc: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoMerge tag 'thermal-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sat, 11 Dec 2021 01:02:46 +0000 (17:02 -0800)]
Merge tag 'thermal-5.16-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "Fix the definition of one of the Tiger Lake MMIO registers in the
  int340x thermal driver (Sumeet Pawnikar)"

* tag 'thermal-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: int340x: Fix VCoRefLow MMIO bit offset for TGL

2 years agoMerge tag 'acpi-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 10 Dec 2021 22:43:16 +0000 (14:43 -0800)]
Merge tag 'acpi-5.16-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Create the output directory for the ACPI tools during build if it has
  not been present before and prevent the compilation from failing in
  that case (Chen Yu)"

* tag 'acpi-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: tools: Fix compilation when output directory is not present

2 years agoMerge tag 'pm-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 10 Dec 2021 22:36:06 +0000 (14:36 -0800)]
Merge tag 'pm-5.16-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a kernedoc comment that doesn't match the behavior of the function
  documented by it"

* tag 'pm-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: runtime: Fix pm_runtime_active() kerneldoc comment

2 years agoMerge tag 'hwmon-for-v5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 10 Dec 2021 22:31:45 +0000 (14:31 -0800)]
Merge tag 'hwmon-for-v5.16-rc5' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - In the pwm-fan driver, ensure that the internal pwm state matches the
   state assumed by the pwm code.

 - Avoid EREMOTEIO errors in sht4 driver

 - In the nct6775 driver, make it explicit that the register value
   passed to nct6775_asuswmi_read() is an 8-bit value

 - Avoid WARNing in dell-smm driver removal after failing to create
   /proc/i8k

 - Stop using a plain integer as NULL pointer in corsair-psu driver

* tag 'hwmon-for-v5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (pwm-fan) Ensure the fan going on in .probe()
  hwmon: (sht4x) Fix EREMOTEIO errors
  hwmon: (nct6775) mask out bank number in nct6775_wmi_read_value()
  hwmon: (dell-smm) Fix warning on /proc/i8k creation error
  hwmon: (corsair-psu) fix plain integer used as NULL pointer

2 years agoMerge tag 'trace-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Fri, 10 Dec 2021 22:24:05 +0000 (14:24 -0800)]
Merge tag 'trace-v5.16-rc4' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Tracing, ftrace and tracefs fixes:

   - Have tracefs honor the gid mount option

   - Have new files in tracefs inherit the parent ownership

   - Have direct_ops unregister when it has no more functions

   - Properly clean up the ops when unregistering multi direct ops

   - Add a sample module to test the multiple direct ops

   - Fix memory leak in error path of __create_synth_event()"

* tag 'trace-v5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix possible memory leak in __create_synth_event() error path
  ftrace/samples: Add module to test multi direct modify interface
  ftrace: Add cleanup to unregister_ftrace_direct_multi
  ftrace: Use direct_ops hash in unregister_ftrace_direct
  tracefs: Set all files to the same group ownership as the mount option
  tracefs: Have new files inherit the ownership of their parent

2 years agoMerge tag 'aio-poll-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebigg...
Linus Torvalds [Fri, 10 Dec 2021 22:15:39 +0000 (14:15 -0800)]
Merge tag 'aio-poll-for-linus' of git://git./linux/kernel/git/ebiggers/linux

Pull aio poll fixes from Eric Biggers:
 "Fix three bugs in aio poll, and one issue with POLLFREE more broadly:

   - aio poll didn't handle POLLFREE, causing a use-after-free.

   - aio poll could block while the file is ready.

   - aio poll called eventfd_signal() when it isn't allowed.

   - POLLFREE didn't handle multiple exclusive waiters correctly.

  This has been tested with the libaio test suite, as well as with test
  programs I wrote that reproduce the first two bugs. I am sending this
  pull request myself as no one seems to be maintaining this code"

* tag 'aio-poll-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  aio: Fix incorrect usage of eventfd_signal_allowed()
  aio: fix use-after-free due to missing POLLFREE handling
  aio: keep poll requests on waitqueue until completed
  signalfd: use wake_up_pollfree()
  binder: use wake_up_pollfree()
  wait: add wake_up_pollfree()

2 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 10 Dec 2021 22:09:12 +0000 (14:09 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "More x86 fixes:

   - Logic bugs in CR0 writes and Hyper-V hypercalls

   - Don't use Enlightened MSR Bitmap for L3

   - Remove user-triggerable WARN

  Plus a few selftest fixes and a regression test for the
  user-triggerable WARN"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  selftests: KVM: Add test to verify KVM doesn't explode on "bad" I/O
  KVM: x86: Don't WARN if userspace mucks with RCX during string I/O exit
  KVM: X86: Raise #GP when clearing CR0_PG in 64 bit mode
  selftests: KVM: avoid failures due to reserved HyperTransport region
  KVM: x86: Ignore sparse banks size for an "all CPUs", non-sparse IPI req
  KVM: x86: Wait for IPIs to be delivered when handling Hyper-V TLB flush hypercall
  KVM: x86: selftests: svm_int_ctl_test: fix intercept calculation
  KVM: nVMX: Don't use Enlightened MSR Bitmap for L3

2 years agoi2c: mpc: Use atomic read and fix break condition
Chris Packham [Tue, 7 Dec 2021 04:21:44 +0000 (17:21 +1300)]
i2c: mpc: Use atomic read and fix break condition

Maxime points out that the polling code in mpc_i2c_isr should use the
_atomic API because it is called in an irq context and that the
behaviour of the MCF bit is that it is 1 when the byte transfer is
complete. All of this means the original code was effectively a
udelay(100).

Fix this by using readb_poll_timeout_atomic() and removing the negation
of the break condition.

Fixes: 4a8ac5e45cda ("i2c: mpc: Poll for MCF")
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2 years agoio-wq: check for wq exit after adding new worker task_work
Jens Axboe [Fri, 10 Dec 2021 15:29:30 +0000 (08:29 -0700)]
io-wq: check for wq exit after adding new worker task_work

We check IO_WQ_BIT_EXIT before attempting to create a new worker, and
wq exit cancels pending work if we have any. But it's possible to have
a race between the two, where creation checks exit finding it not set,
but we're in the process of exiting. The exit side will cancel pending
creation task_work, but there's a gap where we add task_work after we've
canceled existing creations at exit time.

Fix this by checking the EXIT bit post adding the creation task_work.
If it's set, run the same cancelation that exit does.

Reported-and-tested-by: syzbot+b60c982cb0efc5e05a47@syzkaller.appspotmail.com
Reviewed-by: Hao Xu <haoxu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoio_uring: ensure task_work gets run as part of cancelations
Jens Axboe [Thu, 9 Dec 2021 15:54:29 +0000 (08:54 -0700)]
io_uring: ensure task_work gets run as part of cancelations

If we successfully cancel a work item but that work item needs to be
processed through task_work, then we can be sleeping uninterruptibly
in io_uring_cancel_generic() and never process it. Hence we don't
make forward progress and we end up with an uninterruptible sleep
warning.

While in there, correct a comment that should be IFF, not IIF.

Reported-and-tested-by: syzbot+21e6887c0be14181206d@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agoMerge tag 'pci-v5.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
Linus Torvalds [Fri, 10 Dec 2021 19:56:05 +0000 (11:56 -0800)]
Merge tag 'pci-v5.16-fixes-2' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Revert emulation of Marvell Armada A3720 expansion ROM because it
   doesn't work as expected (Marek BehĂșn)

 - Assert PERST# in Apple M1 driver to fix initialization when booting
   from bootloaders using PCIe, such as U-Boot (Marc Zyngier)

 - Describe PERST# as active low in Apple T8103 DT and update driver to
   match (Marc Zyngier)

* tag 'pci-v5.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: apple: Fix PERST# polarity
  arm64: dts: apple: t8103: Mark PCIe PERST# polarity active low in DT
  PCI: apple: Follow the PCIe specifications when resetting the port
  Revert "PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge"

2 years agoMerge tag 'mmc-v5.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 10 Dec 2021 19:50:21 +0000 (11:50 -0800)]
Merge tag 'mmc-v5.16-rc3' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC host fixes from Ulf Hansson:

 - mtk-sd: Fix memory leak during tuning

 - renesas_sdhi: Initialize variable properly when tuning

* tag 'mmc-v5.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: mediatek: free the ext_csd when mmc_get_ext_csd success
  mmc: renesas_sdhi: initialize variable properly when tuning

2 years agoMerge tag 'libata-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal...
Linus Torvalds [Fri, 10 Dec 2021 19:46:53 +0000 (11:46 -0800)]
Merge tag 'libata-5.16-rc5' of git://git./linux/kernel/git/dlemoal/libata

Pull libata fixes from Damien Le Moal:

 - Fix a sparse warning in the ahci_ceva driver (me)

 - Disable the ASMedia 1092 non-functional device (Hannes)

* tag 'libata-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  libata: add horkage for ASMedia 1092
  ata: ahci_ceva: Fix id array access in ceva_ahci_read_id()

2 years agoMerge tag 'sound-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 10 Dec 2021 19:43:00 +0000 (11:43 -0800)]
Merge tag 'sound-5.16-rc5' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Another collection of small fixes. It's still not quite calm yet, but
  nothing looks scary.

  ALSA core got a few fixes for covering the issues detected by fuzzer
  and the 32bit compat problem of control API, while the rest are all
  device-specific small fixes, including the continued fixes for Tegra"

* tag 'sound-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (23 commits)
  ALSA: hda/realtek - Add headset Mic support for Lenovo ALC897 platform
  ALSA: usb-audio: Reorder snd_djm_devices[] entries
  ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1
  ALSA: ctl: Fix copy of updated id with element read/write
  ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*()
  ALSA: pcm: oss: Limit the period size to 16MB
  ALSA: pcm: oss: Fix negative period/buffer sizes
  ASoC: codecs: wsa881x: fix return values from kcontrol put
  ASoC: codecs: wcd934x: return correct value from mixer put
  ASoC: codecs: wcd934x: handle channel mappping list correctly
  ASoC: qdsp6: q6routing: Fix return value from msm_routing_put_audio_mixer
  ASoC: SOF: Intel: Retry codec probing if it fails
  ASoC: amd: fix uninitialized variable in snd_acp6x_probe()
  ASoC: rockchip: i2s_tdm: Dup static DAI template
  ASoC: rt5682s: Fix crash due to out of scope stack vars
  ASoC: rt5682: Fix crash due to out of scope stack vars
  ASoC: tegra: Use normal system sleep for ADX
  ASoC: tegra: Use normal system sleep for AMX
  ASoC: tegra: Use normal system sleep for Mixer
  ASoC: tegra: Use normal system sleep for MVC
  ...

2 years agoMerge tag 'drm-fixes-2021-12-10' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 10 Dec 2021 19:29:53 +0000 (11:29 -0800)]
Merge tag 'drm-fixes-2021-12-10' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular fixes, pretty small overall, couple of core fixes, two i915
  and two amdgpu, hopefully it stays this quiet.

  ttm:
   - fix ttm_bo_swapout

  syncobj:
   - fix fence find bug with signalled fences

  i915:
   - fix error pointer deref in gem execbuffer
   - fix for GT init with GuC/HuC on ICL

  amdgpu:
   - DPIA fix
   - eDP fix"

* tag 'drm-fixes-2021-12-10' of git://anongit.freedesktop.org/drm/drm:
  drm/i915/gen11: Moving WAs to icl_gt_workarounds_init()
  drm/amd/display: prevent reading unitialized links
  drm/amd/display: Fix DPIA outbox timeout after S3/S4/reset
  drm/i915: Fix error pointer dereference in i915_gem_do_execbuffer()
  drm/syncobj: Deal with signalled fences in drm_syncobj_find_fence.
  drm/ttm: fix ttm_bo_swapout