1215859 Commits

Author SHA1 Message Date
Linus Torvalds
8565bdf8cd Six smb3 client fixes, including three for stable
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Merge tag '6.6-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:
 "Six smb3 client fixes, including three for stable, from the SMB
  plugfest (testing event) this week:

   - Reparse point handling fix (found when investigating dir
     enumeration when fifo in dir)

   - Fix excessive thread creation for dir lease cleanup

   - UAF fix in negotiate path

   - remove duplicate error message mapping and fix confusing warning
     message

   - add dynamic trace point to improve debugging RDMA connection
     attempts"

* tag '6.6-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: fix confusing debug message
  smb: client: handle STATUS_IO_REPARSE_TAG_NOT_HANDLED
  smb3: remove duplicate error mapping
  cifs: Fix UAF in cifs_demultiplex_thread()
  smb3: do not start laundromat thread when dir leases  disabled
  smb3: Add dynamic trace points for RDMA (smbdirect) reconnect
2023-09-23 11:34:48 -07:00
Linus Torvalds
5a4de7dc9e A set of I2C driver fixes. Mostly fixing resource leaks or sanity
checks.
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Merge tag 'i2c-for-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "A set of I2C driver fixes. Mostly fixing resource leaks or sanity
  checks"

* tag 'i2c-for-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: xiic: Correct return value check for xiic_reinit()
  i2c: mux: gpio: Add missing fwnode_handle_put()
  i2c: mux: demux-pinctrl: check the return value of devm_kstrdup()
  i2c: designware: fix __i2c_dw_disable() in case master is holding SCL low
  i2c: i801: unregister tco_pdev in i801_probe() error path
2023-09-23 11:20:24 -07:00
Charles Keepax
eb72d52070 mfd: cs42l43: Use correct macro for new-style PM runtime ops
The code was accidentally mixing new and old style macros, update the
macros used to remove an unused function warning whilst building with
no PM enabled in the config.

Fixes: ace6d1448138 ("mfd: cs42l43: Add support for cs42l43 core driver")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/all/20230822114914.340359-1-ckeepax@opensource.cirrus.com/
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-09-23 11:10:23 -07:00
Linus Torvalds
93397d3a2f LoongArch fixes for v6.6-rc3
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Merge tag 'loongarch-fixes-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "Fix lockdep, fix a boot failure, fix some build warnings, fix document
  links, and some cleanups"

* tag 'loongarch-fixes-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  docs/zh_CN/LoongArch: Update the links of ABI
  docs/LoongArch: Update the links of ABI
  LoongArch: Don't inline kasan_mem_to_shadow()/kasan_shadow_to_mem()
  kasan: Cleanup the __HAVE_ARCH_SHADOW_MAP usage
  LoongArch: Set all reserved memblocks on Node#0 at initialization
  LoongArch: Remove dead code in relocate_new_kernel
  LoongArch: Use _UL() and _ULL()
  LoongArch: Fix some build warnings with W=1
  LoongArch: Fix lockdep static memory detection
2023-09-23 10:57:03 -07:00
Linus Torvalds
2e3d391184 s390 updates for 6.6-rc3
- Fix potential string buffer overflow in hypervisor user-defined
   certificates handling.
 
 - Update defconfigs.
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Merge tag 's390-6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - Fix potential string buffer overflow in hypervisor user-defined
   certificates handling

 - Update defconfigs

* tag 's390-6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/cert_store: fix string length handling
  s390: update defconfigs
2023-09-23 10:50:37 -07:00
Linus Torvalds
59c376d636 Fixes for 6.6-rc3:
* Return EIO on bad inputs to iomap_to_bh instead of BUGging, to deal
   less poorly with block device io racing with block device resizing.
 * Fix a stale page data exposure bug introduced in 6.6-rc1 when
   unsharing a file range that is not in the page cache.
 
 Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'iomap-6.6-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap fixes from Darrick Wong:

 - Return EIO on bad inputs to iomap_to_bh instead of BUGging, to deal
   less poorly with block device io racing with block device resizing

 - Fix a stale page data exposure bug introduced in 6.6-rc1 when
   unsharing a file range that is not in the page cache

* tag 'iomap-6.6-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  iomap: convert iomap_unshare_iter to use large folios
  iomap: don't skip reading in !uptodate folios when unsharing a range
  iomap: handle error conditions more gracefully in iomap_to_bh
2023-09-23 09:56:40 -07:00
Paolo Bonzini
5804c19b80 KVM/riscv fixes for 6.6, take #1
- Fix KVM_GET_REG_LIST API for ISA_EXT registers
 - Fix reading ISA_EXT register of a missing extension
 - Fix ISA_EXT register handling in get-reg-list test
 - Fix filtering of AIA registers in get-reg-list test
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Merge tag 'kvm-riscv-fixes-6.6-1' of https://github.com/kvm-riscv/linux into HEAD

KVM/riscv fixes for 6.6, take #1

- Fix KVM_GET_REG_LIST API for ISA_EXT registers
- Fix reading ISA_EXT register of a missing extension
- Fix ISA_EXT register handling in get-reg-list test
- Fix filtering of AIA registers in get-reg-list test
2023-09-23 05:35:55 -04:00
Tom Lendacky
916e3e5f26 KVM: SVM: Do not use user return MSR support for virtualized TSC_AUX
When the TSC_AUX MSR is virtualized, the TSC_AUX value is swap type "B"
within the VMSA. This means that the guest value is loaded on VMRUN and
the host value is restored from the host save area on #VMEXIT.

Since the value is restored on #VMEXIT, the KVM user return MSR support
for TSC_AUX can be replaced by populating the host save area with the
current host value of TSC_AUX. And, since TSC_AUX is not changed by Linux
post-boot, the host save area can be set once in svm_hardware_enable().
This eliminates the two WRMSR instructions associated with the user return
MSR support.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <d381de38eb0ab6c9c93dda8503b72b72546053d7.1694811272.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-09-23 05:35:49 -04:00
Tom Lendacky
e0096d01c4 KVM: SVM: Fix TSC_AUX virtualization setup
The checks for virtualizing TSC_AUX occur during the vCPU reset processing
path. However, at the time of initial vCPU reset processing, when the vCPU
is first created, not all of the guest CPUID information has been set. In
this case the RDTSCP and RDPID feature support for the guest is not in
place and so TSC_AUX virtualization is not established.

This continues for each vCPU created for the guest. On the first boot of
an AP, vCPU reset processing is executed as a result of an APIC INIT
event, this time with all of the guest CPUID information set, resulting
in TSC_AUX virtualization being enabled, but only for the APs. The BSP
always sees a TSC_AUX value of 0 which probably went unnoticed because,
at least for Linux, the BSP TSC_AUX value is 0.

Move the TSC_AUX virtualization enablement out of the init_vmcb() path and
into the vcpu_after_set_cpuid() path to allow for proper initialization of
the support after the guest CPUID information has been set.

With the TSC_AUX virtualization support now in the vcpu_set_after_cpuid()
path, the intercepts must be either cleared or set based on the guest
CPUID input.

Fixes: 296d5a17e793 ("KVM: SEV-ES: Use V_TSC_AUX if available instead of RDTSC/MSR_TSC_AUX intercepts")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <4137fbcb9008951ab5f0befa74a0399d2cce809a.1694811272.git.thomas.lendacky@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-09-23 05:35:49 -04:00
Paolo Bonzini
e8d93d5d93 KVM: SVM: INTERCEPT_RDTSCP is never intercepted anyway
svm_recalc_instruction_intercepts() is always called at least once
before the vCPU is started, so the setting or clearing of the RDTSCP
intercept can be dropped from the TSC_AUX virtualization support.

Extracted from a patch by Tom Lendacky.

Cc: stable@vger.kernel.org
Fixes: 296d5a17e793 ("KVM: SEV-ES: Use V_TSC_AUX if available instead of RDTSC/MSR_TSC_AUX intercepts")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-09-23 05:35:49 -04:00
Sean Christopherson
0df9dab891 KVM: x86/mmu: Stop zapping invalidated TDP MMU roots asynchronously
Stop zapping invalidate TDP MMU roots via work queue now that KVM
preserves TDP MMU roots until they are explicitly invalidated.  Zapping
roots asynchronously was effectively a workaround to avoid stalling a vCPU
for an extended during if a vCPU unloaded a root, which at the time
happened whenever the guest toggled CR0.WP (a frequent operation for some
guest kernels).

While a clever hack, zapping roots via an unbound worker had subtle,
unintended consequences on host scheduling, especially when zapping
multiple roots, e.g. as part of a memslot.  Because the work of zapping a
root is no longer bound to the task that initiated the zap, things like
the CPU affinity and priority of the original task get lost.  Losing the
affinity and priority can be especially problematic if unbound workqueues
aren't affined to a small number of CPUs, as zapping multiple roots can
cause KVM to heavily utilize the majority of CPUs in the system, *beyond*
the CPUs KVM is already using to run vCPUs.

When deleting a memslot via KVM_SET_USER_MEMORY_REGION, the async root
zap can result in KVM occupying all logical CPUs for ~8ms, and result in
high priority tasks not being scheduled in in a timely manner.  In v5.15,
which doesn't preserve unloaded roots, the issues were even more noticeable
as KVM would zap roots more frequently and could occupy all CPUs for 50ms+.

Consuming all CPUs for an extended duration can lead to significant jitter
throughout the system, e.g. on ChromeOS with virtio-gpu, deleting memslots
is a semi-frequent operation as memslots are deleted and recreated with
different host virtual addresses to react to host GPU drivers allocating
and freeing GPU blobs.  On ChromeOS, the jitter manifests as audio blips
during games due to the audio server's tasks not getting scheduled in
promptly, despite the tasks having a high realtime priority.

Deleting memslots isn't exactly a fast path and should be avoided when
possible, and ChromeOS is working towards utilizing MAP_FIXED to avoid the
memslot shenanigans, but KVM is squarely in the wrong.  Not to mention
that removing the async zapping eliminates a non-trivial amount of
complexity.

Note, one of the subtle behaviors hidden behind the async zapping is that
KVM would zap invalidated roots only once (ignoring partial zaps from
things like mmu_notifier events).  Preserve this behavior by adding a flag
to identify roots that are scheduled to be zapped versus roots that have
already been zapped but not yet freed.

Add a comment calling out why kvm_tdp_mmu_invalidate_all_roots() can
encounter invalid roots, as it's not at all obvious why zapping
invalidated roots shouldn't simply zap all invalid roots.

Reported-by: Pattara Teerapong <pteerapong@google.com>
Cc: David Stevens <stevensd@google.com>
Cc: Yiwei Zhang<zzyiwei@google.com>
Cc: Paul Hsia <paulhsia@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230916003916.2545000-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-09-23 05:35:48 -04:00
Paolo Bonzini
441a5dfcd9 KVM: x86/mmu: Do not filter address spaces in for_each_tdp_mmu_root_yield_safe()
All callers except the MMU notifier want to process all address spaces.
Remove the address space ID argument of for_each_tdp_mmu_root_yield_safe()
and switch the MMU notifier to use __for_each_tdp_mmu_root_yield_safe().

Extracted out of a patch by Sean Christopherson <seanjc@google.com>

Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-09-23 05:35:12 -04:00
Linus Torvalds
d90b0276af hardening fixes for v6.6-rc3
- Fix UAPI stddef.h to avoid C++-ism (Alexey Dobriyan)
 
 - Fix harmless UAPI stddef.h header guard endif (Alexey Dobriyan)
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Merge tag 'hardening-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening fixes from Kees Cook:

 - Fix UAPI stddef.h to avoid C++-ism (Alexey Dobriyan)

 - Fix harmless UAPI stddef.h header guard endif (Alexey Dobriyan)

* tag 'hardening-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  uapi: stddef.h: Fix __DECLARE_FLEX_ARRAY for C++
  uapi: stddef.h: Fix header guard location
2023-09-22 16:46:55 -07:00
Linus Torvalds
3abc79dce6 Bug fixes for 6.6-rc3:
* Fix an integer overflow bug when processing an fsmap call.
 
  * Fix crash due to CPU hot remove event racing with filesystem mount
    operation.
 
  * During read-only mount, XFS does not allow the contents of the log to be
    recovered when there are one or more unrecognized rcompat features in the
    primary superblock, since the log might have intent items which the kernel
    does not know how to process.
 
  * During recovery of log intent items, XFS now reserves log space sufficient
    for one cycle of a permanent transaction to execute. Otherwise, this could
    lead to livelocks due to non-availability of log space.
 
  * On an fs which has an ondisk unlinked inode list, trying to delete a file
    or allocating an O_TMPFILE file can cause the fs to the shutdown if the
    first inode in the ondisk inode list is not present in the inode cache.
    The bug is solved by explicitly loading the first inode in the ondisk
    unlinked inode list into the inode cache if it is not already cached.
 
    A similar problem arises when the uncached inode is present in the middle
    of the ondisk unlinked inode list. This second bug is triggered when
    executing operations like quotacheck and bulkstat. In this case, XFS now
    reads in the entire ondisk unlinked inode list.
 
  * Enable LARP mode only on recent v5 filesystems.
 
  * Fix a out of bounds memory access in scrub.
 
  * Fix a performance bug when locating the tail of the log during mounting a
    filesystem.
 
 Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.6-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Chandan Babu:

 - Fix an integer overflow bug when processing an fsmap call

 - Fix crash due to CPU hot remove event racing with filesystem mount
   operation

 - During read-only mount, XFS does not allow the contents of the log to
   be recovered when there are one or more unrecognized rcompat features
   in the primary superblock, since the log might have intent items
   which the kernel does not know how to process

 - During recovery of log intent items, XFS now reserves log space
   sufficient for one cycle of a permanent transaction to execute.
   Otherwise, this could lead to livelocks due to non-availability of
   log space

 - On an fs which has an ondisk unlinked inode list, trying to delete a
   file or allocating an O_TMPFILE file can cause the fs to the shutdown
   if the first inode in the ondisk inode list is not present in the
   inode cache. The bug is solved by explicitly loading the first inode
   in the ondisk unlinked inode list into the inode cache if it is not
   already cached

   A similar problem arises when the uncached inode is present in the
   middle of the ondisk unlinked inode list. This second bug is
   triggered when executing operations like quotacheck and bulkstat. In
   this case, XFS now reads in the entire ondisk unlinked inode list

 - Enable LARP mode only on recent v5 filesystems

 - Fix a out of bounds memory access in scrub

 - Fix a performance bug when locating the tail of the log during
   mounting a filesystem

* tag 'xfs-6.6-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: use roundup_pow_of_two instead of ffs during xlog_find_tail
  xfs: only call xchk_stats_merge after validating scrub inputs
  xfs: require a relatively recent V5 filesystem for LARP mode
  xfs: make inode unlinked bucket recovery work with quotacheck
  xfs: load uncached unlinked inodes into memory on demand
  xfs: reserve less log space when recovering log intent items
  xfs: fix log recovery when unknown rocompat bits are set
  xfs: reload entire unlinked bucket lists
  xfs: allow inode inactivation during a ro mount log recovery
  xfs: use i_prev_unlinked to distinguish inodes that are not on the unlinked list
  xfs: remove CPU hotplug infrastructure
  xfs: remove the all-mounts list
  xfs: use per-mount cpumask to track nonempty percpu inodegc lists
  xfs: fix an agbno overflow in __xfs_getfsmap_datadev
  xfs: fix per-cpu CIL structure aggregation racing with dying cpus
  xfs: fix select in config XFS_ONLINE_SCRUB_STATS
2023-09-22 16:32:19 -07:00
Kees Cook
c66650d297 cxl/acpi: Annotate struct cxl_cxims_data with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).

As found with Coccinelle[1], add __counted_by for struct cxl_cxims_data.
Additionally, since the element count member must be set before accessing
the annotated flexible array member, move its initialization earlier.

[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci

Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linux-cxl@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20230922175319.work.096-kees@kernel.org
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-09-22 14:31:04 -07:00
Dan Williams
a76b62518e cxl/port: Fix cxl_test register enumeration regression
The cxl_test unit test environment models a CXL topology for
sysfs/user-ABI regression testing. It uses interface mocking via the
"--wrap=" linker option to redirect cxl_core routines that parse
hardware registers with versions that just publish objects, like
devm_cxl_enumerate_decoders().

Starting with:

Commit 19ab69a60e3b ("cxl/port: Store the port's Component Register mappings in struct cxl_port")

...port register enumeration is moved into devm_cxl_add_port(). This
conflicts with the "cxl_test avoids emulating registers stance" so
either the port code needs to be refactored (too violent), or modified
so that register enumeration is skipped on "fake" cxl_test ports
(annoying, but straightforward).

This conflict has happened previously and the "check for platform
device" workaround to avoid instrusive refactoring was deployed in those
scenarios. In general, refactoring should only benefit production code,
test code needs to remain minimally instrusive to the greatest extent
possible.

This was missed previously because it may sometimes just cause warning
messages to be emitted, but it can also cause test failures. The
backport to -stable is only nice to have for clean cxl_test runs.

Fixes: 19ab69a60e3b ("cxl/port: Store the port's Component Register mappings in struct cxl_port")
Cc: stable@vger.kernel.org
Reported-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/169476525052.1013896.6235102957693675187.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-09-22 14:28:42 -07:00
Steven Rostedt (Google)
ef36b4f928 eventfs: Remember what dentries were created on dir open
Using the following code with libtracefs:

	int dfd;

	// create the directory events/kprobes/kp1
	tracefs_kprobe_raw(NULL, "kp1", "schedule_timeout", "time=$arg1");

	// Open the kprobes directory
	dfd = tracefs_instance_file_open(NULL, "events/kprobes", O_RDONLY);

	// Do a lookup of the kprobes/kp1 directory (by looking at enable)
	tracefs_file_exists(NULL, "events/kprobes/kp1/enable");

	// Now create a new entry in the kprobes directory
	tracefs_kprobe_raw(NULL, "kp2", "schedule_hrtimeout", "expires=$arg1");

	// Do another lookup to create the dentries
	tracefs_file_exists(NULL, "events/kprobes/kp2/enable"))

	// Close the directory
	close(dfd);

What happened above, the first open (dfd) will call
dcache_dir_open_wrapper() that will create the dentries and up their ref
counts.

Now the creation of "kp2" will add another dentry within the kprobes
directory.

Upon the close of dfd, eventfs_release() will now do a dput for all the
entries in kprobes. But this is where the problem lies. The open only
upped the dentry of kp1 and not kp2. Now the close is decrementing both
kp1 and kp2, which causes kp2 to get a negative count.

Doing a "trace-cmd reset" which deletes all the kprobes cause the kernel
to crash! (due to the messed up accounting of the ref counts).

To solve this, save all the dentries that are opened in the
dcache_dir_open_wrapper() into an array, and use this array to know what
dentries to do a dput on in eventfs_release().

Since the dcache_dir_open_wrapper() calls dcache_dir_open() which uses the
file->private_data, we need to also add a wrapper around dcache_readdir()
that uses the cursor assigned to the file->private_data. This is because
the dentries need to also be saved in the file->private_data. To do this
create the structure:

  struct dentry_list {
	void		*cursor;
	struct dentry	**dentries;
  };

Which will hold both the cursor and the dentries. Some shuffling around is
needed to make sure that dcache_dir_open() and dcache_readdir() only see
the cursor.

Link: https://lore.kernel.org/linux-trace-kernel/20230919211804.230edf1e@gandalf.local.home/
Link: https://lore.kernel.org/linux-trace-kernel/20230922163446.1431d4fa@gandalf.local.home

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ajay Kaher <akaher@vmware.com>
Fixes: 63940449555e7 ("eventfs: Implement eventfs lookup, read, open functions")
Reported-by: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-09-22 16:58:11 -04:00
Zheng Yejian
45d99ea451 ring-buffer: Fix bytes info in per_cpu buffer stats
The 'bytes' info in file 'per_cpu/cpu<X>/stats' means the number of
bytes in cpu buffer that have not been consumed. However, currently
after consuming data by reading file 'trace_pipe', the 'bytes' info
was not changed as expected.

  # cat per_cpu/cpu0/stats
  entries: 0
  overrun: 0
  commit overrun: 0
  bytes: 568             <--- 'bytes' is problematical !!!
  oldest event ts:  8651.371479
  now ts:  8653.912224
  dropped events: 0
  read events: 8

The root cause is incorrect stat on cpu_buffer->read_bytes. To fix it:
  1. When stat 'read_bytes', account consumed event in rb_advance_reader();
  2. When stat 'entries_bytes', exclude the discarded padding event which
     is smaller than minimum size because it is invisible to reader. Then
     use rb_page_commit() instead of BUF_PAGE_SIZE at where accounting for
     page-based read/remove/overrun.

Also correct the comments of ring_buffer_bytes_cpu() in this patch.

Link: https://lore.kernel.org/linux-trace-kernel/20230921125425.1708423-1-zhengyejian1@huawei.com

Cc: stable@vger.kernel.org
Fixes: c64e148a3be3 ("trace: Add ring buffer stats to measure rate of events")
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-09-22 16:57:14 -04:00
Linus Torvalds
8018e02a87 Thermal control fix for 6.6-rc3
Unbreak the trip point update sysfs interface that has been
 broken since the 6.3 cycle (Rafael Wysocki).
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Merge tag 'thermal-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "Unbreak the trip point update sysfs interface that has been broken
  since the 6.3 cycle (Rafael Wysocki)"

* tag 'thermal-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: sysfs: Fix trip_point_hyst_store()
2023-09-22 13:25:13 -07:00
Linus Torvalds
b184c040dc ACPI fixes for 6.6-rc3
- Fix recently introduced uninitialized memory access issue in the ACPI
    processor driver (Michal Wilczynski).
 
  - Fix ia64 build inadvertently broken by recent ACPI processor driver
    changes, which is prudent to do for 6.6 even though ia64 support is
    slated for removal in 6.7 (Ard Biesheuvel).
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Merge tag 'acpi-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix a general ACPI processor driver regression and an ia64 build
  issue, both introduced recently.

  Specifics:

   - Fix recently introduced uninitialized memory access issue in the
     ACPI processor driver (Michal Wilczynski)

   - Fix ia64 build inadvertently broken by recent ACPI processor driver
     changes, which is prudent to do for 6.6 even though ia64 support is
     slated for removal in 6.7 (Ard Biesheuvel)"

* tag 'acpi-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: processor: Fix uninitialized access of buf in acpi_set_pdc_bits()
  acpi: Provide ia64 dummy implementation of acpi_proc_quirk_mwait_check()
2023-09-22 13:19:04 -07:00
Linus Torvalds
36fcf38152 arm64 fixes for -rc3
- Fix detection of "ClearBHB" and "Hinted Conditional Branch" features
 
 - Fix broken wildcarding for Arm PMU MAINTAINERS entry
 
 - Add missing documentation for userspace-visible ID register fields
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Small crop of relatively boring arm64 fixes for -rc3.

  That's not to say we don't have any juicy bugs, however, it's just
  that fixes for those are likely to come via -mm and -tip for a hugetlb
  and an atomics issue respectively. I get left with the
  documentation...

   - Fix detection of "ClearBHB" and "Hinted Conditional Branch" features

   - Fix broken wildcarding for Arm PMU MAINTAINERS entry

   - Add missing documentation for userspace-visible ID register fields"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Document missing userspace visible fields in ID_AA64ISAR2_EL1
  arm64/hbc: Document HWCAP2_HBC
  arm64/sme: Include ID_AA64PFR1_EL1.SME in cpu-feature-registers.rst
  arm64: cpufeature: Fix CLRBHB and BC detection
  MAINTAINERS: Use wildcard pattern for ARM PMU headers
2023-09-22 12:41:43 -07:00
Linus Torvalds
b61ec8d0f1 Fix the patching ordering between static calls and return thunks.
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Merge tag 'x86_urgent_for_v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 rethunk fixes from Borislav Petkov:
 "Fix the patching ordering between static calls and return thunks"

* tag 'x86_urgent_for_v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86,static_call: Fix static-call vs return-thunk
  x86/alternatives: Remove faulty optimization
2023-09-22 12:35:56 -07:00
Linus Torvalds
e583bffeb8 Misc x86 fixes:
- Fix a kexec bug,
  - Fix an UML build bug,
  - Fix a handful of SRSO related bugs,
  - Fix a shadow stacks handling bug & robustify related code.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2023-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 fixes from Ingo Molnar:

 - Fix a kexec bug

 - Fix an UML build bug

 - Fix a handful of SRSO related bugs

 - Fix a shadow stacks handling bug & robustify related code

* tag 'x86-urgent-2023-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/shstk: Add warning for shadow stack double unmap
  x86/shstk: Remove useless clone error handling
  x86/shstk: Handle vfork clone failure correctly
  x86/srso: Fix SBPB enablement for spec_rstack_overflow=off
  x86/srso: Don't probe microcode in a guest
  x86/srso: Set CPUID feature bits independently of bug or mitigation status
  x86/srso: Fix srso_show_state() side effect
  x86/asm: Fix build of UML with KASAN
  x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()
2023-09-22 12:26:42 -07:00
Linus Torvalds
5b47b5766b Fix a PF_IDLE initialization bug that generated warnings on tiny-RCU.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2023-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fix from Ingo Molnar:
 "Fix a PF_IDLE initialization bug that generated warnings on tiny-RCU"

* tag 'sched-urgent-2023-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kernel/sched: Modify initial boot task idle setup
2023-09-22 12:16:46 -07:00
Linus Torvalds
725e2d7ec8 Fix a include/linux/atomic/atomic-arch-fallback.h breakage that generated
incorrect code, and fix a lockdep reporting race that may result in lockups.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-urgent-2023-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fixes from Ingo Molnar:
 "Fix a include/linux/atomic/atomic-arch-fallback.h breakage that
  generated incorrect code, and fix a lockdep reporting race that may
  result in lockups"

* tag 'locking-urgent-2023-09-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/seqlock: Do the lockdep annotation before locking in do_write_seqcount_begin_nested()
  locking/atomic: scripts: fix fallback ifdeffery
2023-09-22 12:02:30 -07:00
Peter Zijlstra
aee9d30b97 x86,static_call: Fix static-call vs return-thunk
Commit

  7825451fa4dc ("static_call: Add call depth tracking support")

failed to realize the problem fixed there is not specific to call depth
tracking but applies to all return-thunk uses.

Move the fix to the appropriate place and condition.

Fixes: ee88d363d156 ("x86,static_call: Use alternative RET encoding")
Reported-by: David Kaplan <David.Kaplan@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@kernel.org>
2023-09-22 18:58:24 +02:00
Josh Poimboeuf
4ba89dd6dd x86/alternatives: Remove faulty optimization
The following commit

  095b8303f383 ("x86/alternative: Make custom return thunk unconditional")

made '__x86_return_thunk' a placeholder value.  All code setting
X86_FEATURE_RETHUNK also changes the value of 'x86_return_thunk'.  So
the optimization at the beginning of apply_returns() is dead code.

Also, before the above-mentioned commit, the optimization actually had a
bug It bypassed __static_call_fixup(), causing some raw returns to
remain unpatched in static call trampolines.  Thus the 'Fixes' tag.

Fixes: d2408e043e72 ("x86/alternative: Optimize returns patching")
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/16d19d2249d4485d8380fb215ffaae81e6b8119e.1693889988.git.jpoimboe@kernel.org
2023-09-22 18:52:39 +02:00
Rafael J. Wysocki
a1001c37f8 Merge branch 'acpi-processor'
Merge a fix for recently introduced uninitialized memory access in the
ACPI processor driver from Michal Wilczynski.

* acpi-processor:
  ACPI: processor: Fix uninitialized access of buf in acpi_set_pdc_bits()
2023-09-22 18:34:34 +02:00
Linus Torvalds
dc912ba91b EFI fixes for v6.6 take 2:
- fix boot regression on SEV-SNP (and TDX) caused by a fix in the
   preceding batch
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Merge tag 'efi-fixes-for-v6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI fix from Ard Biesheuvel:
 "Follow-up fix for the unaccepted memory fix merged last week as part
  of the first EFI fixes batch.

  The unaccepted memory table needs to be accessible very early, even in
  cases (such as crashkernels) where the direct map does not cover all
  of DRAM, and so it is added to memblock explicitly, and subsequently
  memblock_reserve()'d as before"

* tag 'efi-fixes-for-v6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi/unaccepted: Make sure unaccepted table is mapped
2023-09-22 09:25:26 -07:00
Linus Torvalds
48bb67d3f1 MAINTAINERS:
- drop Ben as he retired from nouveau
 
 core:
 - drm_mm test fixes
 
 fbdev:
 - Kconfig fixes
 
 ivpu:
 - IRQ-handling fixes
 
 meson:
 - Fix memory leak in HDMI EDID code
 
 nouveau:
 - Correct type casting
 - Fix memory leak in scheduler
 - u_memcpya() fixes
 
 i915:
 - Prevent error pointer dereference
 - Fix PMU busyness values when using GuC mode
 
 amdgpu:
 - MST fix
 - Vbios part number reporting fix
 - Fix a possible memory leak in an error case in the RAS code
 - Fix low resolution modes on eDP
 
 amdkfd:
 - Fix GPU address for user queue wptr when GART is not at 0
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Merge tag 'drm-fixes-2023-09-22-2' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Ben Skeggs is stepping away from nouveau and Red Hat for personal
  reasons, he'll be missed and we intend to fill the gaps in the
  upcoming time with Danilo and Lyude stepping in for now.

  Otherwise i915, nouveau, amdgpu with a few each and some misc spread
  around.

  MAINTAINERS:
   - drop Ben as he retired from nouveau

  core:
   - drm_mm test fixes

  fbdev:
   - Kconfig fixes

  ivpu:
   - IRQ-handling fixes

  meson:
   - Fix memory leak in HDMI EDID code

  nouveau:
   - Correct type casting
   - Fix memory leak in scheduler
   - u_memcpya() fixes

  i915:
   - Prevent error pointer dereference
   - Fix PMU busyness values when using GuC mode

  amdgpu:
   - MST fix
   - Vbios part number reporting fix
   - Fix a possible memory leak in an error case in the RAS code
   - Fix low resolution modes on eDP

  amdkfd:
   - Fix GPU address for user queue wptr when GART is not at 0"

* tag 'drm-fixes-2023-09-22-2' of git://anongit.freedesktop.org/drm/drm:
  MAINTAINERS: remove myself as nouveau maintainer
  fbdev/sh7760fb: Depend on FB=y
  drm/amdkfd: Use gpu_offset for user queue's wptr
  drm/amd/display: fix the ability to use lower resolution modes on eDP
  drm/amdgpu: fix a memory leak in amdgpu_ras_feature_enable
  Revert "drm/amdgpu: Report vbios version instead of PN"
  drm/amd/display: Fix MST recognizes connected displays as one
  drm/virtio: clean out_fence on complete_submit
  i915/pmu: Move execlist stats initialization to execlist specific setup
  drm/i915/gt: Prevent error pointer dereference
  drm/meson: fix memory leak on ->hpd_notify callback
  accel/ivpu/40xx: Fix buttress interrupt handling
  nouveau/u_memcpya: fix NULL vs error pointer bug
  nouveau/u_memcpya: use vmemdup_user
  drm/nouveau: sched: fix leaking memory of timedout job
  drm/nouveau: fence: fix type cast warning in nouveau_fence_emit()
  drm: fix up fbdev Kconfig defaults
  drm/tests: Fix incorrect argument in drm_test_mm_insert_range
2023-09-22 09:18:51 -07:00
Linus Torvalds
2f8d62daf2 This push fixes a regression in sm2.
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Merge tag 'v6.6-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "This fixes a regression in sm2"

* tag 'v6.6-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: sm2 - Fix crash caused by uninitialized context
2023-09-22 09:15:37 -07:00
Linus Torvalds
3a457d2804 platform-drivers-x86 for v6.6-3
Highlights:
  -  Add Ilpo Järvinen as platform-drivers-x86 co-maintainer
  -  Set of Intel SCU IPC fixes
  -  thinkpad_acpi locking fix
 
 The following is an automated git shortlog grouped by driver:
 
 MAINTAINERS:
  -  Add x86 platform drivers patchwork
  -  Add myself into x86 platform driver maintainers
 
 intel_scu_ipc:
  -  Fail IPC send if still busy
  -  Don't override scu in intel_scu_ipc_dev_simple_command()
  -  Check status upon timeout in ipc_wait_for_interrupt()
  -  Check status after timeout in busy_loop()
 
 thinkpad_acpi:
  -  Take mutex in hotkey_resume
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Merge tag 'platform-drivers-x86-v6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:
 "The most noteworthy change in here is the addition of Ilpo Järvinen as
  co-maintainer of platform-drivers-x86. Ilpo will be helping me with
  platform-drivers-x86 maintenance going forward and you can expect
  pull-requests from Ilpo in the future.

  Other then that there is a set of Intel SCU IPC fixes and a
  thinkpad_acpi locking fix"

* tag 'platform-drivers-x86-v6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  MAINTAINERS: Add x86 platform drivers patchwork
  MAINTAINERS: Add myself into x86 platform driver maintainers
  platform/x86: thinkpad_acpi: Take mutex in hotkey_resume
  platform/x86: intel_scu_ipc: Fail IPC send if still busy
  platform/x86: intel_scu_ipc: Don't override scu in intel_scu_ipc_dev_simple_command()
  platform/x86: intel_scu_ipc: Check status upon timeout in ipc_wait_for_interrupt()
  platform/x86: intel_scu_ipc: Check status after timeout in busy_loop()
2023-09-22 09:11:35 -07:00
Justin Stitt
cb7ab7854b IB/qib: Replace deprecated strncpy
`strncpy` is deprecated for use on NUL-terminated destination strings [1]
and as such we should prefer more robust and less ambiguous string
interfaces.

We know `txselect_list` is expected to be NUL-terminated based on its
use in `param_get_string()`:
| int param_get_string(char *buffer, const struct kernel_param *kp)
| {
| 	const struct kparam_string *kps = kp->str;
| 	return scnprintf(buffer, PAGE_SIZE, "%s\n", kps->string);
| }

Note that `txselect_list` is assigned to `kp_txselect`'s string field:
| static struct kparam_string kp_txselect = {
| 	.string = txselect_list,
| 	.maxlen = MAX_ATTEN_LEN
| };

Wherein it is then assigned the set and get methods:
| module_param_call(txselect, setup_txselect, param_get_string,
| 		  &kp_txselect, S_IWUSR | S_IRUGO);

Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20230921-strncpy-drivers-infiniband-hw-qib-qib_iba7322-c-v1-1-373727763f5b@google.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-09-22 13:29:19 +03:00
Justin Stitt
c2d0c5b28a IB/hfi1: Replace deprecated strncpy
`strncpy` is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.

We see that `buf` is expected to be NUL-terminated based on it's use
within a trace event wherein `is_misc_err_name` and `is_various_name`
map to `is_name` through `is_table`:
| TRACE_EVENT(hfi1_interrupt,
| 	    TP_PROTO(struct hfi1_devdata *dd, const struct is_table *is_entry,
| 		     int src),
| 	    TP_ARGS(dd, is_entry, src),
| 	    TP_STRUCT__entry(DD_DEV_ENTRY(dd)
| 			     __array(char, buf, 64)
| 			     __field(int, src)
| 			     ),
| 	    TP_fast_assign(DD_DEV_ASSIGN(dd);
| 			   is_entry->is_name(__entry->buf, 64,
| 					     src - is_entry->start);
| 			   __entry->src = src;
| 			   ),
| 	    TP_printk("[%s] source: %s [%d]", __get_str(dev), __entry->buf,
| 		      __entry->src)
| );

Considering the above, a suitable replacement is `strscpy_pad` due to
the fact that it guarantees NUL-termination on the destination buffer
while maintaining the NUL-padding behavior that strncpy provides.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20230921-strncpy-drivers-infiniband-hw-hfi1-chip-c-v1-1-37afcf4964d9@google.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-09-22 13:28:54 +03:00
Justin Stitt
f0cc82ca11 RDMA/irdma: Replace deprecated strncpy
`strncpy` is deprecated for use on NUL-terminated destination strings [1]
and as such we should prefer more robust and less ambiguous string
interfaces.

A suitable replacement is `strscpy_pad` due to the fact that it
guarantees NUL-termination on the destination buffer.

It is unclear to me whether `i40iw_client.name` requires NUL-padding but
have opted to keep the NUL-padding behavior that strncpy provides to
ensure no functional change.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20230921-strncpy-drivers-infiniband-hw-irdma-i40iw_if-c-v1-1-22d87aef7186@google.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-09-22 13:27:27 +03:00
Daniel Scally
59851fb05d i2c: xiic: Correct return value check for xiic_reinit()
The error paths for xiic_reinit() return negative values on failure
and 0 on success - this error message therefore is triggered on
_success_ rather than failure. Correct the condition so it's only
shown on failure as intended.

Fixes: 8fa9c9388053 ("i2c: xiic: return value of xiic_reinit")
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2023-09-22 12:04:39 +02:00
Bartosz Golaszewski
5cb9606a90 gpio: sim: fix an invalid __free() usage
gpio_sim_make_line_names() returns NULL or ERR_PTR() so we must not use
__free(kfree) on the returned address. Split this function into two, one
that determines the size of the "gpio-line-names" array to allocate and
one that actually sets the names at correct offsets. The allocation and
assignment of the managed pointer happens in between.

Fixes: 3faf89f27aab ("gpio: sim: simplify code with cleanup helpers")
Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Closes: https://lore.kernel.org/all/07c32bf1-6c1a-49d9-b97d-f0ae4a2b42ab@p183/
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-09-22 10:51:56 +02:00
Ben Skeggs
b41b28366d MAINTAINERS: remove myself as nouveau maintainer
I have resigned, and will no longer be taking as active a role in
nouveau development.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918222225.8629-1-skeggsb@gmail.com
2023-09-22 16:32:00 +10:00
Dave Airlie
54928f2f84 amd-drm-fixes-6.6-2023-09-20:
amdgpu:
 - MST fix
 - Vbios part number reporting fix
 - Fix a possible memory leak in an error case in the RAS code
 - Fix low resolution modes on eDP
 
 amdkfd:
 - Fix GPU address for user queue wptr when GART is not at 0
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Merge tag 'amd-drm-fixes-6.6-2023-09-20' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.6-2023-09-20:

amdgpu:
- MST fix
- Vbios part number reporting fix
- Fix a possible memory leak in an error case in the RAS code
- Fix low resolution modes on eDP

amdkfd:
- Fix GPU address for user queue wptr when GART is not at 0

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230920222915.7789-1-alexander.deucher@amd.com
2023-09-22 15:43:44 +10:00
Dave Airlie
ab2bff5993 - Prevent error pointer dereference (Dan Carpenter)
- Fix PMU busyness values when using GuC mode (Umesh)
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Merge tag 'drm-intel-fixes-2023-09-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Prevent error pointer dereference (Dan Carpenter)
- Fix PMU busyness values when using GuC mode (Umesh)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZQxf267jxc7tiIlZ@intel.com
2023-09-22 15:32:21 +10:00
Dave Airlie
f675553d76 Short summary of fixes pull:
* DRM MM-test fixes
  * Fbdev Kconfig fixes
 
  * ivpu:
    * IRQ-handling fixes
 
  * meson:
    * Fix memory leak in HDMI EDID code
 
  * nouveau:
    * Correct type casting
    * Fix memory leak in scheduler
    * u_memcpya() fixes
 
  * virtio:
    * Fence cleanups
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Merge tag 'drm-misc-fixes-2023-09-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Short summary of fixes pull:

 * DRM MM-test fixes
 * Fbdev Kconfig fixes

 * ivpu:
   * IRQ-handling fixes

 * meson:
   * Fix memory leak in HDMI EDID code

 * nouveau:
   * Correct type casting
   * Fix memory leak in scheduler
   * u_memcpya() fixes

 * virtio:
   * Fence cleanups

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230921153712.GA14059@linux-uq9g
2023-09-22 14:38:30 +10:00
Rafael J. Wysocki
e86cdc80c6 Build fix for Itanium/ia64:
- provide dummy implementation of acpi_proc_quirk_mwait_check() which
   was moved out of generic code into arch/x86, breaking the ia64 build
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Merge tag 'fix-ia64-build-for-v6.6' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/ardb/linux

Merge an ia64 ACPI build fix for v6.6 from Ard Biesheuvel:

"Build fix for Itanium/ia64:

 - provide dummy implementation of acpi_proc_quirk_mwait_check() which
   was moved out of generic code into arch/x86, breaking the ia64 build"

* tag 'fix-ia64-build-for-v6.6' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/ardb/linux:
  acpi: Provide ia64 dummy implementation of acpi_proc_quirk_mwait_check()
2023-09-21 21:39:23 +02:00
Linus Torvalds
27bbf45eae Networking fixes for 6.6-rc2, including fixes from netfilter and bpf
Current release - regressions:
 
  - bpf: adjust size_index according to the value of KMALLOC_MIN_SIZE
 
  - netfilter: fix entries val in rule reset audit log
 
  - eth: stmmac: fix incorrect rxq|txq_stats reference
 
 Previous releases - regressions:
 
  - ipv4: fix null-deref in ipv4_link_failure
 
  - netfilter:
    - fix several GC related issues
    - fix race between IPSET_CMD_CREATE and IPSET_CMD_SWAP
 
  - eth: team: fix null-ptr-deref when team device type is changed
 
  - eth: i40e: fix VF VLAN offloading when port VLAN is configured
 
  - eth: ionic: fix 16bit math issue when PAGE_SIZE >= 64KB
 
 Previous releases - always broken:
 
  - core: fix ETH_P_1588 flow dissector
 
  - mptcp: fix several connection hang-up conditions
 
  - bpf:
    - avoid deadlock when using queue and stack maps from NMI
    - add override check to kprobe multi link attach
 
  - hsr: properly parse HSRv1 supervisor frames.
 
  - eth: igc: fix infinite initialization loop with early XDP redirect
 
  - eth: octeon_ep: fix tx dma unmap len values in SG
 
  - eth: hns3: fix GRE checksum offload issue
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter and bpf.

  Current release - regressions:

   - bpf: adjust size_index according to the value of KMALLOC_MIN_SIZE

   - netfilter: fix entries val in rule reset audit log

   - eth: stmmac: fix incorrect rxq|txq_stats reference

  Previous releases - regressions:

   - ipv4: fix null-deref in ipv4_link_failure

   - netfilter:
      - fix several GC related issues
      - fix race between IPSET_CMD_CREATE and IPSET_CMD_SWAP

   - eth: team: fix null-ptr-deref when team device type is changed

   - eth: i40e: fix VF VLAN offloading when port VLAN is configured

   - eth: ionic: fix 16bit math issue when PAGE_SIZE >= 64KB

  Previous releases - always broken:

   - core: fix ETH_P_1588 flow dissector

   - mptcp: fix several connection hang-up conditions

   - bpf:
      - avoid deadlock when using queue and stack maps from NMI
      - add override check to kprobe multi link attach

   - hsr: properly parse HSRv1 supervisor frames.

   - eth: igc: fix infinite initialization loop with early XDP redirect

   - eth: octeon_ep: fix tx dma unmap len values in SG

   - eth: hns3: fix GRE checksum offload issue"

* tag 'net-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits)
  sfc: handle error pointers returned by rhashtable_lookup_get_insert_fast()
  igc: Expose tx-usecs coalesce setting to user
  octeontx2-pf: Do xdp_do_flush() after redirects.
  bnxt_en: Flush XDP for bnxt_poll_nitroa0()'s NAPI
  net: ena: Flush XDP packets on error.
  net/handshake: Fix memory leak in __sock_create() and sock_alloc_file()
  net: hinic: Fix warning-hinic_set_vlan_fliter() warn: variable dereferenced before check 'hwdev'
  netfilter: ipset: Fix race between IPSET_CMD_CREATE and IPSET_CMD_SWAP
  netfilter: nf_tables: fix memleak when more than 255 elements expired
  netfilter: nf_tables: disable toggling dormant table state more than once
  vxlan: Add missing entries to vxlan_get_size()
  net: rds: Fix possible NULL-pointer dereference
  team: fix null-ptr-deref when team device type is changed
  net: bridge: use DEV_STATS_INC()
  net: hns3: add 5ms delay before clear firmware reset irq source
  net: hns3: fix fail to delete tc flower rules during reset issue
  net: hns3: only enable unicast promisc when mac table full
  net: hns3: fix GRE checksum offload issue
  net: hns3: add cmdq check for vf periodic service task
  net: stmmac: fix incorrect rxq|txq_stats reference
  ...
2023-09-21 11:28:16 -07:00
Linus Torvalds
b5cbe7c00a v6.6-rc3.vfs.ctime.revert
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Merge tag 'v6.6-rc3.vfs.ctime.revert' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull finegrained timestamp reverts from Christian Brauner:
 "Earlier this week we sent a few minor fixes for the multi-grained
  timestamp work in [1]. While we were polishing those up after Linus
  realized that there might be a nicer way to fix them we received a
  regression report in [2] that fine grained timestamps break gnulib
  tests and thus possibly other tools.

  The kernel will elide fine-grain timestamp updates when no one is
  actively querying for them to avoid performance impacts. So a sequence
  like write(f1) stat(f2) write(f2) stat(f2) write(f1) stat(f1) may
  result in timestamp f1 to be older than the final f2 timestamp even
  though f1 was last written too but the second write didn't update the
  timestamp.

  Such plotholes can lead to subtle bugs when programs compare
  timestamps. For example, the nap() function in [2] will estimate that
  it needs to wait one ns on a fine-grain timestamp enabled filesytem
  between subsequent calls to observe a timestamp change. But in general
  we don't update timestamps with more than one jiffie if we think that
  no one is actively querying for fine-grain timestamps to avoid
  performance impacts.

  While discussing various fixes the decision was to go back to the
  drawing board and ultimately to explore a solution that involves only
  exposing such fine-grained timestamps to nfs internally and never to
  userspace.

  As there are multiple solutions discussed the honest thing to do here
  is not to fix this up or disable it but to cleanly revert. The general
  infrastructure will probably come back but there is no reason to keep
  this code in mainline.

  The general changes to timestamp handling are valid and a good cleanup
  that will stay. The revert is fully bisectable"

Link: https://lore.kernel.org/all/20230918-hirte-neuzugang-4c2324e7bae3@brauner [1]
Link: https://lore.kernel.org/all/bf0524debb976627693e12ad23690094e4514303.camel@linuxfromscratch.org [2]

* tag 'v6.6-rc3.vfs.ctime.revert' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  Revert "fs: add infrastructure for multigrain timestamps"
  Revert "btrfs: convert to multigrain timestamps"
  Revert "ext4: switch to multigrain timestamps"
  Revert "xfs: switch to multigrain timestamps"
  Revert "tmpfs: add support for multigrain timestamps"
2023-09-21 10:15:26 -07:00
Ilpo Järvinen
bc3b6f5946 MAINTAINERS: Add x86 platform drivers patchwork
Add x86 platform drivers patchwork which has been missing from
MAINTAINERS.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230919123948.1583-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-09-21 18:03:03 +02:00
Linus Torvalds
7bdfc1af0a powerpc fixes for 6.6 #2
- A fix for breakpoint handling which was using get_user() while atomic.
 
  - Fix the Power10 HASHCHK handler which was using get_user() while atomic.
 
  - A few build fixes for issues caused by recent changes.
 
 Thanks to: Benjamin Gray, Christophe Leroy, Kajol Jain, Naveen N Rao.
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Merge tag 'powerpc-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - A fix for breakpoint handling which was using get_user() while atomic

 - Fix the Power10 HASHCHK handler which was using get_user() while
   atomic

 - A few build fixes for issues caused by recent changes

Thanks to Benjamin Gray, Christophe Leroy, Kajol Jain, and Naveen N Rao.

* tag 'powerpc-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/dexcr: Move HASHCHK trap handler
  powerpc/82xx: Select FSL_SOC
  powerpc: Fix build issue with LD_DEAD_CODE_DATA_ELIMINATION and FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
  powerpc/watchpoints: Annotate atomic context in more places
  powerpc/watchpoint: Disable pagefaults when getting user instruction
  powerpc/watchpoints: Disable preemption in thread_change_pc()
  powerpc/perf/hv-24x7: Update domain value check
2023-09-21 08:39:24 -07:00
Linus Torvalds
88a174a906 xen: branch for v6.6-rc3
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Merge tag 'for-linus-6.6a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - remove some unused functions in the Xen event channel handling

 - fix a regression (introduced during the merge window) when booting as
   Xen PV guest

 - small cleanup removing another strncpy() instance

* tag 'for-linus-6.6a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/efi: refactor deprecated strncpy
  x86/xen: allow nesting of same lazy mode
  x86/xen: move paravirt lazy code
  arm/xen: remove lazy mode related definitions
  xen: simplify evtchn_do_upcall() call maze
2023-09-21 08:27:42 -07:00
Linus Torvalds
fb8b1b93ee memblock test: compilation fixes
Fix several compilation errors and warnings in memblock tests
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Merge tag 'fixes-2023-09-21' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock test fixes from Mike Rapoport:
 "Fix several compilation errors and warnings in memblock tests"

* tag 'fixes-2023-09-21' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  memblock tests: fix warning ‘struct seq_file’ declared inside parameter list
  memblock tests: fix warning: "__ALIGN_KERNEL" redefined
  memblock tests: Fix compilation errors.
2023-09-21 08:21:23 -07:00
Linus Torvalds
2af5acbaa7 sound fixes for 6.6-rc3
A large collection of fixes around this time.
 All small and mostly trivial fixes.
 
 - Lots of fixes for the new -Wformat-truncation warnings
 - A fix in ALSA rawmidi core regression and UMP handling
 - Series of Cirrus codec fixes
 - ASoC Intel and Realtek codec fixes
 - Usual HD- and USB-audio quirks and AMD ASoC quirks
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Merge tag 'sound-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A large collection of fixes around this time.

  All small and mostly trivial fixes.

   - Lots of fixes for the new -Wformat-truncation warnings

   - A fix in ALSA rawmidi core regression and UMP handling

   - Series of Cirrus codec fixes

   - ASoC Intel and Realtek codec fixes

   - Usual HD- and USB-audio quirks and AMD ASoC quirks"

* tag 'sound-6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (64 commits)
  ALSA: hda/realtek - ALC287 Realtek I2S speaker platform support
  ALSA: hda: cs35l56: Use the new RUNTIME_PM_OPS() macro
  ALSA: usb-audio: scarlett_gen2: Fix another -Wformat-truncation warning
  ALSA: rawmidi: Fix NULL dereference at proc read
  ASoC: SOF: core: Only call sof_ops_free() on remove if the probe was successful
  ASoC: SOF: Intel: MTL: Reduce the DSP init timeout
  ASoC: cs42l43: Add shared IRQ flag for shutters
  ASoC: imx-audmix: Fix return error with devm_clk_get()
  ASoC: hdaudio.c: Add missing check for devm_kstrdup
  ALSA: riptide: Fix -Wformat-truncation warning for longname string
  ALSA: cs4231: Fix -Wformat-truncation warning for longname string
  ALSA: ad1848: Fix -Wformat-truncation warning for longname string
  ALSA: hda: generic: Check potential mixer name string truncation
  ALSA: cmipci: Fix -Wformat-truncation warning
  ALSA: firewire: Fix -Wformat-truncation warning for MIDI stream names
  ALSA: firewire: Fix -Wformat-truncation warning for longname string
  ALSA: xen: Fix -Wformat-truncation warning
  ALSA: opti9x: Fix -Wformat-truncation warning
  ALSA: es1688: Fix -Wformat-truncation warning
  ALSA: cs4236: Fix -Wformat-truncation warning
  ...
2023-09-21 08:13:15 -07:00
Linus Torvalds
b300c0fdf0 hwmon fix for v6.6-rc3
One patch to drop a non-existent alarm attribute in the nct6775 driver
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Merge tag 'hwmon-for-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fix from Guenter Roeck:
 "One patch to drop a non-existent alarm attribute in the nct6775 driver"

* tag 'hwmon-for-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct6775) Fix non-existent ALARM warning
2023-09-21 08:10:47 -07:00