Add an option to the trace_instance kernel command line parameter that
allows it to use the reserved memory from memmap boot parameter.
memmap=12M$0x284500000 trace_instance=boot_mapped@0x284500000:12M
The above will reserves 12 megs at the physical address 0x284500000.
The second parameter will create a "boot_mapped" instance and use the
memory reserved as the memory for the ring buffer.
That will create an instance called "boot_mapped":
/sys/kernel/tracing/instances/boot_mapped
Note, because the ring buffer is using a defined memory ranged, it will
act just like a memory mapped ring buffer. It will not have a snapshot
buffer, as it can't swap out the buffer. The snapshot files as well as any
tracers that uses a snapshot will not be present in the boot_mapped
instance.
Link: https://lkml.kernel.org/r/20240612232026.329660169@goodmis.org
Cc: linux-mm@kvack.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Youssef Esmat <youssefesmat@google.com>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Make sure all the events in each of the sub-buffers that were mapped in a
memory region are valid. This moves the code that walks the buffers for
time-stamp validation out of the CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS
ifdef block and is used to validate the content. Only the ring buffer
event meta data and time stamps are checked and not the data load.
This also has a second purpose. The buffer_page structure that points to
the data sub-buffers has accounting that keeps track of the number of
events that are on the sub-buffer. This updates that counter as well. That
counter is used in reading the buffer and knowing if the ring buffer is
empty or not.
Link: https://lkml.kernel.org/r/20240612232026.172503570@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Youssef Esmat <youssefesmat@google.com>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add a test against the ring buffer memory range to see if it has valid
data. The ring_buffer_meta structure is given a new field called
"first_buffer" which holds the address of the first sub-buffer. This is
used to both determine if the other fields are valid as well as finding
the offset between the old addresses of the sub-buffer from the previous
boot to the new addresses of the current boot.
Since the values for nr_subbufs and subbuf_size is to be the same, check
if the values in the meta page match the values calculated.
Take the range of the first_buffer and the total size of all the buffers
and make sure the saved head_buffer and commit_buffer fall in the range.
Iterate through all the sub-buffers to make sure that the values in the
sub-buffer "commit" field (the field that holds the amount of data on the
sub-buffer) is within the end of the sub-buffer. Also check the index
array to make sure that all the indexes are within nr_subbufs.
Link: https://lkml.kernel.org/r/20240612232026.013843655@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Youssef Esmat <youssefesmat@google.com>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Add a buffer_meta per-cpu file for the trace instance that is mapped to
boot memory. This shows the current meta-data and can be used by user
space tools to record off the current mappings to help reconstruct the
ring buffer after a reboot.
It does not expose any virtual addresses, just indexes into the sub-buffer
pages.
Link: https://lkml.kernel.org/r/20240612232025.854471446@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Youssef Esmat <youssefesmat@google.com>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Allow for creating a new instance by passing in an address and size to map
the ring buffer for the instance to.
This will allow features like a pstore memory mapped region to be used for
an tracing instance ring buffer that can be retrieved from one boot to the
next.
Link: https://lkml.kernel.org/r/20240612232025.692086240@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Youssef Esmat <youssefesmat@google.com>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Populate the ring_buffer_meta array. It holds the pointer to the
head_buffer (next to read), the commit_buffer (next to write) the size of
the sub-buffers, number of sub-buffers and an array that keeps track of
the order of the sub-buffers.
This information will be stored in the persistent memory to help on reboot
to reconstruct the ring buffer.
Link: https://lkml.kernel.org/r/20240612232025.530733577@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Youssef Esmat <youssefesmat@google.com>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
In preparation to allowing the trace ring buffer to be allocated in a
range of memory that is persistent across reboots, add
ring_buffer_alloc_range(). It takes a contiguous range of memory and will
split it up evenly for the per CPU ring buffers.
If there's not enough memory to handle all CPUs with the minimum size, it
will fail to allocate the ring buffer.
Link: https://lkml.kernel.org/r/20240612232025.363998725@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Youssef Esmat <youssefesmat@google.com>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
In preparation for having the ring buffer mapped to a dedicated location,
which will have the same restrictions as user space memory mapped buffers,
allow it to use the "mapped" field of the ring_buffer_per_cpu structure
without having the user space meta page mapping.
When this starts using the mapped field, it will need to handle adding a
user space mapping (and removing it) from a ring buffer that is using a
dedicated memory range.
Link: https://lkml.kernel.org/r/20240612232025.190908567@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineeth Pillai <vineeth@bitbyteword.org>
Cc: Youssef Esmat <youssefesmat@google.com>
Cc: Beau Belgrave <beaub@linux.microsoft.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
- Add a quirk for three different devices that have shown issues with
LPM (link power management). These devices appear to not implement LPM
properly, since we see command timeouts when enabling LPM. The quirk
disables LPM for these problematic devices. (Me)
- Do not apply the Intel PCS quirk on Alder Lake. The quirk is not needed
and was originally added by mistake when LPM support was enabled for
this AHCI controller. Enabling the quirk when not needed causes the
the controller to not be able to detect the connected devices on some
platforms.
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Merge tag 'ata-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Niklas Cassel:
- Add a quirk for three different devices that have shown issues with
LPM (link power management). These devices appear to not implement
LPM properly, since we see command timeouts when enabling LPM. The
quirk disables LPM for these problematic devices. (Me)
- Do not apply the Intel PCS quirk on Alder Lake. The quirk is not
needed and was originally added by mistake when LPM support was
enabled for this AHCI controller. Enabling the quirk when not needed
causes the the controller to not be able to detect the connected
devices on some platforms.
* tag 'ata-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-core: Add ATA_HORKAGE_NOLPM for Apacer AS340
ata: libata-core: Add ATA_HORKAGE_NOLPM for AMD Radeon S3 SSD
ata: libata-core: Add ATA_HORKAGE_NOLPM for Crucial CT240BX500SSD1
ata: ahci: Do not apply Intel PCS quirk on Intel Alder Lake
- Fix topology parsing regression on older CPUs in the
new AMD/Hygon parser
- Fix boot crash on odd Intel Quark and similar CPUs that
do not fill out cpuinfo_x86::x86_clflush_size and zero out
cpuinfo_x86::x86_cache_alignment as a result. Provide
32 bytes as a general fallback value.
- Fix topology enumeration on certain rare CPUs where the
BIOS locks certain CPUID leaves and the kernel unlocked
them late, which broke with the new topology parsing code.
Factor out this unlocking logic and move it earlier
in the parsing sequence.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2024-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Miscellaneous topology parsing fixes:
- Fix topology parsing regression on older CPUs in the new AMD/Hygon
parser
- Fix boot crash on odd Intel Quark and similar CPUs that do not fill
out cpuinfo_x86::x86_clflush_size and zero out
cpuinfo_x86::x86_cache_alignment as a result.
Provide 32 bytes as a general fallback value.
- Fix topology enumeration on certain rare CPUs where the BIOS locks
certain CPUID leaves and the kernel unlocked them late, which broke
with the new topology parsing code. Factor out this unlocking logic
and move it earlier in the parsing sequence"
* tag 'x86-urgent-2024-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/topology/intel: Unlock CPUID before evaluating anything
x86/cpu: Provide default cache line size if not enumerated
x86/topology/amd: Evaluate SMT in CPUID leaf 0x8000001e only on family 0x17 and greater
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2024-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
"Export a symbol to make life easier for instrumentation/debugging"
* tag 'sched-urgent-2024-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/x86: Export 'percpu arch_freq_scale'
- Enforce full ordering for ATOMIC operations with BPF_FETCH.
- Fix uaccess build errors seen with GCC 13/14.
- Fix build errors on ppc32 due to ARCH_HAS_KERNEL_FPU_SUPPORT.
- Drop error message from lparcfg guest name lookup.
Thanks to: Christophe Leroy, Guenter Roeck, Nathan Lynch, Naveen N Rao, Puranjay
Mohan, Samuel Holland.
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Merge tag 'powerpc-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Enforce full ordering for ATOMIC operations with BPF_FETCH
- Fix uaccess build errors seen with GCC 13/14
- Fix build errors on ppc32 due to ARCH_HAS_KERNEL_FPU_SUPPORT
- Drop error message from lparcfg guest name lookup
Thanks to Christophe Leroy, Guenter Roeck, Nathan Lynch, Naveen N Rao,
Puranjay Mohan, and Samuel Holland.
* tag 'powerpc-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Limit ARCH_HAS_KERNEL_FPU_SUPPORT to PPC64
powerpc/uaccess: Use YZ asm constraint for ld
powerpc/uaccess: Fix build errors seen with GCC 13/14
powerpc/pseries/lparcfg: drop error message from guest name lookup
powerpc/bpf: enforce full ordering for ATOMIC operations with BPF_FETCH
After merging a commit 1fffe7a34c ("script: modpost: emit a warning when
the description is missing"), MODULE_DESCRIPTOR seems to be mandatory for
kernel modules. In FireWire subsystem, the most of practical kernel modules
have the field, while KUnit test modules do not. A single patch is applied
to fix them.
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Merge tag 'firewire-fixes-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Takashi Sakamoto:
"After merging a commit 1fffe7a34c ("script: modpost: emit a warning
when the description is missing"), MODULE_DESCRIPTOR seems to be
mandatory for kernel modules. In FireWire subsystem, the most of
practical kernel modules have the field, while KUnit test modules do
not. A single patch is applied to fix them"
* tag 'firewire-fixes-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: add missing MODULE_DESCRIPTION() to test modules
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Merge tag '6.10-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"Two small smb3 fixes:
- Fix socket creation with sfu mount option (spotted by test generic/423)
- Minor cleanup: fix missing description in two files"
* tag '6.10-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix creating sockets when using sfu mount options
fs: smb: common: add missing MODULE_DESCRIPTION() macros
* Fix a livelock by dropping an xfarray sortinfo folio when an error is
encountered.
* During extended attribute operations, Initialize transaction reservation
computation based on attribute operation code.
* Relax symbolic link's ondisk verification code to allow symbolic links
with short remote targets.
* Prevent soft lockups when unmapping file ranges and also during remapping
blocks during a reflink operation.
* Fix compilation warnings when XFS is built with W=1 option.
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.10-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Chandan Babu:
- Fix a livelock by dropping an xfarray sortinfo folio when an error
is encountered
- During extended attribute operations, Initialize transaction
reservation computation based on attribute operation code
- Relax symbolic link's ondisk verification code to allow symbolic
links with short remote targets
- Prevent soft lockups when unmapping file ranges and also during
remapping blocks during a reflink operation
- Fix compilation warnings when XFS is built with W=1 option
* tag 'xfs-6.10-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: Add cond_resched to block unmap range and reflink remap path
xfs: don't open-code u64_to_user_ptr
xfs: allow symlinks with short remote targets
xfs: fix xfs_init_attr_trans not handling explicit operation codes
xfs: drop xfarray sortinfo folio on error
xfs: Stop using __maybe_unused in xfs_alloc.c
xfs: Clear W=1 warning in xfs_iwalk_run_callbacks()
Here is a single revert for a much-reported regression in 6.10-rc1 when
it comes to a few older architectures. Turns out that the VT ioctls
don't work the same across all cpu types because of some old
compatibility requrements for stuff like alpha and powerpc. So revert
the change that attempted to have them use the _IO() macros and go back
to the known-working values instead.
This has NOT been in linux-next but has had many reports that it fixes
the issue with 6.10-rc1.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fix from Greg KH:
"Here is a single revert for a much-reported regression in 6.10-rc1
when it comes to a few older architectures.
Turns out that the VT ioctls don't work the same across all cpu types
because of some old compatibility requrements for stuff like alpha and
powerpc. So revert the change that attempted to have them use the
_IO() macros and go back to the known-working values instead.
This has NOT been in linux-next but has had many reports that it fixes
the issue with 6.10-rc1"
* tag 'tty-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "VT: Use macros to define ioctls"
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Merge tag 'landlock-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull landlock fix from Mickaël Salaün:
"This fixes a wrong path walk triggered by syzkaller"
* tag 'landlock-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
selftests/landlock: Add layout1.refer_mount_root
landlock: Fix d_parent walk
A series of fixes that came in since the merge window, the main thing
being the fixes Andy did for DMA sync where we were calling into the DMA
API in suprising ways and causing issues as a result, the main thing
being confusing the IOMMU code.
We've also got some fairly important fixes for the stm32 driver, it
supports a wide range of hardware and some optimisations that were done
recently have broken on some systems, and a fix to prevent glitched
signals on the bus in the cadence driver.
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Merge tag 'spi-fix-v6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A series of fixes that came in since the merge window, the main thing
being the fixes Andy did for DMA sync where we were calling into the
DMA API in suprising ways and causing issues as a result, the main
thing being confusing the IOMMU code.
We've also got some fairly important fixes for the stm32 driver, it
supports a wide range of hardware and some optimisations that were
done recently have broken on some systems, and a fix to prevent
glitched signals on the bus in the cadence driver"
* tag 'spi-fix-v6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: stm32: Don't warn about spurious interrupts
spi: Assign dummy scatterlist to unidirectional transfers
spi: cadence: Ensure data lines set to low during dummy-cycle period
spi: stm32: Revert change that enabled controller before asserting CS
spi: Check if transfer is mapped before calling DMA sync APIs
spi: Don't mark message DMA mapped when no transfer in it is
One fix that came in since -rc1, fixing misuse of a local variable in
the DT parsing code in the RTQ2208 driver.
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Merge tag 'regulator-fix-v6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"One fix that came in since -rc1, fixing misuse of a local variable in
the DT parsing code in the RTQ2208 driver"
* tag 'regulator-fix-v6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: rtq2208: Fix invalid memory access when devm_of_regulator_put_matches is called
The I2C bus was not taking account of the register and any padding bytes
when handling maximum write sizes supported by an I2C adaptor, this
patch from Jim Wylder fixes that.
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Merge tag 'regmap-fix-v6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"The I2C bus was not taking account of the register and any padding
bytes when handling maximum write sizes supported by an I2C adaptor,
this patch from Jim Wylder fixes that"
* tag 'regmap-fix-v6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap-i2c: Subtract reg size from max_write
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Merge tag 'block-6.10-20240530' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe fixes via Keith:
- Removing unused fields (Kanchan)
- Large folio offsets support (Kundan)
- Multipath NUMA node initialiazation fix (Nilay)
- Multipath IO stats accounting fixes (Keith)
- Circular lockdep fix (Keith)
- Target race condition fix (Sagi)
- Target memory leak fix (Sagi)
- bcache fixes
- null_blk fixes (Damien)
- Fix regression in io.max due to throttle low removal (Waiman)
- DM limit table fixes (Christoph)
- SCSI and block limit fixes (Christoph)
- zone fixes (Damien)
- Misc fixes (Christoph, Hannes, hexue)
* tag 'block-6.10-20240530' of git://git.kernel.dk/linux: (25 commits)
blk-throttle: Fix incorrect display of io.max
block: Fix zone write plugging handling of devices with a runt zone
block: Fix validation of zoned device with a runt zone
null_blk: Do not allow runt zone with zone capacity smaller then zone size
nvmet: fix a possible leak when destroy a ctrl during qp establishment
nvme: use srcu for iterating namespace list
bcache: code cleanup in __bch_bucket_alloc_set()
bcache: call force_wake_up_gc() if necessary in check_should_bypass()
bcache: allow allocator to invalidate bucket in gc
block: check for max_hw_sectors underflow
block: stack max_user_sectors
sd: also set max_user_sectors when setting max_sectors
null_blk: Print correct max open zones limit in null_init_zoned_dev()
block: delete redundant function declaration
null_blk: Fix return value of nullb_device_power_store()
dm: make dm_set_zones_restrictions work on the queue limits
dm: remove dm_check_zoned
dm: move setting zoned_enabled to dm_table_set_restrictions
block: remove blk_queue_max_integrity_segments
nvme: adjust multiples of NVME_CTRL_PAGE_SIZE in offset
...
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Merge tag 'io_uring-6.10-20240530' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"A couple of minor fixes for issues introduced in the 6.10 merge window:
- Ensure that all read/write ops have an appropriate cleanup handler
set (Breno)
- Regression for applications still doing multiple mmaps even if
FEAT_SINGLE_MMAP is set (me)
- Move kmsg inquiry setting above any potential failure point,
avoiding a spurious NONEMPTY flag setting on early error (me)"
* tag 'io_uring-6.10-20240530' of git://git.kernel.dk/linux:
io_uring/net: assign kmsg inq/flags before buffer selection
io_uring/rw: Free iovec before cleaning async data
io_uring: don't attempt to mmap larger than what the user asks for
Lots of small fixes.
- A race fix for debugfs handling in ALSA core
- A series of corrections for MIDI2 core format conversions
- ASoC Intel fixes for 16 bit DMIC config
- Updates for missing module parameters in ASoC code
- HD-audio quirk, Cirrus codec fix, etc minor fixes
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Merge tag 'sound-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Lots of small fixes:
- A race fix for debugfs handling in ALSA core
- A series of corrections for MIDI2 core format conversions
- ASoC Intel fixes for 16 bit DMIC config
- Updates for missing module parameters in ASoC code
- HD-audio quirk, Cirrus codec fix, etc minor fixes"
* tag 'sound-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (26 commits)
ALSA: seq: ump: Fix swapped song position pointer data
ASoC: SOF: ipc4-topology: Adjust the params based on DAI formats
ASoC: SOF: ipc4-topology: Improve readability of sof_ipc4_prepare_dai_copier()
ASoC: SOF: ipc4-topology/pcm: Rename sof_ipc4_copier_is_single_format()
ASoC: SOF: ipc4-topology: Print out the channel count in sof_ipc4_dbg_audio_format
ASoC: SOF: ipc4-topology: Add support for NHLT with 16-bit only DMIC blob
ALSA: seq: Fix yet another spot for system message conversion
ALSA: ump: Set default protocol when not given explicitly
ALSA: ump: Don't accept an invalid UMP protocol number
ASoC: SOF: ipc4-topology: Fix input format query of process modules without base extension
ASoC: Intel: sof-sdw: fix missing SPI_MASTER dependency
ALSA: pcm: fix typo in comment
ALSA: ump: Don't clear bank selection after sending a program change
ALSA: seq: Fix incorrect UMP type for system messages
ALSA/hda: intel-dsp-config: reduce log verbosity
ALSA: seq: Don't clear bank selection at event -> UMP MIDI2 conversion
ALSA: seq: Fix missing bank setup between MIDI1/MIDI2 UMP conversion
ASoC: SOF: add missing MODULE_DESCRIPTION()
ASoC: SOF: reorder MODULE_ definitions
ASoC: SOF: AMD: group all module related information
...
Highlights:
- A use-after-free bugfix
- 2 Kconfig fixes for randconfig builds
- Allow setting touchscreen_dmi quirks from the cmdline for debugging
- touchscreen_dmi quirks for 2 new laptop/tablet models
The following is an automated git shortlog grouped by driver:
ISST:
- fix use-after-free in tpmi_sst_dev_remove()
thinkpad_acpi:
- Select INPUT_SPARSEKMAP in Kconfig
touchscreen_dmi:
- Add info for the EZpad 6s Pro
- Add info for GlobalSpace SolT IVW 11.6" tablet
- Add support for setting touchscreen properties from cmdline
x86-android-tablets:
- Add "select LEDS_CLASS"
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Merge tag 'platform-drivers-x86-v6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- a use-after-free bugfix
- Kconfig fixes for randconfig builds
- allow setting touchscreen_dmi quirks from the cmdline for debugging
- touchscreen_dmi quirks for two new laptop/tablet models
* tag 'platform-drivers-x86-v6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: touchscreen_dmi: Add info for the EZpad 6s Pro
platform/x86: touchscreen_dmi: Add info for GlobalSpace SolT IVW 11.6" tablet
platform/x86: touchscreen_dmi: Add support for setting touchscreen properties from cmdline
platform/x86: thinkpad_acpi: Select INPUT_SPARSEKMAP in Kconfig
platform/x86: x86-android-tablets: Add "select LEDS_CLASS"
platform/x86: ISST: fix use-after-free in tpmi_sst_dev_remove()
* A fix to avoid pt_regs aliasing with idle thread stacks on secondary
harts.
* HAVE_ARCH_HUGE_VMAP is enabled on XIP kernels, which fixes boot issues
on XIP systems with huge pages.
* An update to the uABI documentation clarifying that only scalar
misaligned accesses were grandfathered in as supported, as the vector
extension did not exist at the time the uABI was frozen.
* A fix for the recently-added byte/half atomics to avoid losing the
fully ordered decorations.
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Merge tag 'riscv-for-linus-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix to avoid pt_regs aliasing with idle thread stacks on secondary
harts.
- HAVE_ARCH_HUGE_VMAP is enabled on XIP kernels, which fixes boot
issues on XIP systems with huge pages.
- An update to the uABI documentation clarifying that only scalar
misaligned accesses were grandfathered in as supported, as the vector
extension did not exist at the time the uABI was frozen.
- A fix for the recently-added byte/half atomics to avoid losing the
fully ordered decorations.
* tag 'riscv-for-linus-6.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix fully ordered LR/SC xchg[8|16]() implementations
Documentation: RISC-V: uabi: Only scalar misaligned loads are supported
riscv: enable HAVE_ARCH_HUGE_VMAP for XIP kernel
riscv: prevent pt_regs corruption for secondary idle threads
- two downgrade fixes
- a couple snapshot deletion and repair fixes, thanks to noradtux for
finding these and providing the image to debug them
- a couple assert fixes
- convert to folio helper, from Matthew
- some improved error messages
- bit of code reorganization (just moving things around); doing this
while things are quiet so I'm not rebasing fixes past reorgs
- don't return -EROFS on inconsistency error in recovery, this confuses
util-linux and has it retry the mount
- fix failure to return error on misaligned dio write; reported as an
issue with coreutils shred
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Merge tag 'bcachefs-2024-05-30' of https://evilpiepirate.org/git/bcachefs
Pull bcachefs fixes from Kent Overstreet:
"Assorted odds and ends...
- two downgrade fixes
- a couple snapshot deletion and repair fixes, thanks to noradtux for
finding these and providing the image to debug them
- a couple assert fixes
- convert to folio helper, from Matthew
- some improved error messages
- bit of code reorganization (just moving things around); doing this
while things are quiet so I'm not rebasing fixes past reorgs
- don't return -EROFS on inconsistency error in recovery, this
confuses util-linux and has it retry the mount
- fix failure to return error on misaligned dio write; reported as an
issue with coreutils shred"
* tag 'bcachefs-2024-05-30' of https://evilpiepirate.org/git/bcachefs: (21 commits)
bcachefs: Fix failure to return error on misaligned dio write
bcachefs: Don't return -EROFS from mount on inconsistency error
bcachefs: Fix uninitialized var warning
bcachefs: Split out sb-errors_format.h
bcachefs: Split out journal_seq_blacklist_format.h
bcachefs: Split out replicas_format.h
bcachefs: Split out disk_groups_format.h
bcachefs: split out sb-downgrade_format.h
bcachefs: split out sb-members_format.h
bcachefs: Better fsck error message for key version
bcachefs: btree_gc can now handle unknown btrees
bcachefs: add missing MODULE_DESCRIPTION()
bcachefs: Fix setting of downgrade recovery passes/errors
bcachefs: Run check_key_has_snapshot in snapshot_delete_keys()
bcachefs: Refactor delete_dead_snapshots()
bcachefs: Fix locking assert
bcachefs: Fix lookup_first_inode() when inode_generations are present
bcachefs: Plumb bkey into __btree_err()
bcachefs: Use copy_folio_from_iter_atomic()
bcachefs: Fix sb-downgrade validation
...
Intel CPUs have a MSR bit to limit CPUID enumeration to leaf two. If
this bit is set by the BIOS then CPUID evaluation including topology
enumeration does not work correctly as the evaluation code does not try
to analyze any leaf greater than two.
This went unnoticed before because the original topology code just
repeated evaluation several times and managed to overwrite the initial
limited information with the correct one later. The new evaluation code
does it once and therefore ends up with the limited and wrong
information.
Cure this by unlocking CPUID right before evaluating anything which
depends on the maximum CPUID leaf being greater than two instead of
rereading stuff after unlock.
Fixes: 22d63660c3 ("x86/cpu: Use common topology code for Intel")
Reported-by: Peter Schneider <pschneider1968@googlemail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/fd3f73dc-a86f-4bcf-9c60-43556a21eb42@googlemail.com
irq_to_desc() is not exported to loadable modules, so this driver now
fails to link in some configurations:
ERROR: modpost: "irq_to_desc" [drivers/mailbox/zynqmp-ipi-mailbox.ko] undefined!
I can't see a purpose for this call, since the return value is unused
and probably left over from some code refactoring.
Address the link failure by just removing the line.
Fixes: 6ffb163534 ("mailbox: zynqmp: handle SGI for shared IPI")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Tanmay Shah <tanmay.shah@amd.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
The prior strscpy() replacement of strncpy() here expected the
manufacture_reply strings to be NUL-terminated, but it is possible
they are not, as the code pattern here shows, e.g., edev->vendor_id
being exactly 1 character larger than manufacture_reply->vendor_id,
and the replaced strncpy() was copying only up to the size of the
source character array. Replace this with memtostr(), which is the
unambiguous way to convert a maybe not-NUL-terminated character array
into a NUL-terminated string.
Fixes: b7e9712a02 ("scsi: mpt3sas: Replace deprecated strncpy() with strscpy()")
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Marco Patalano <mpatalan@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20240410023155.2100422-3-keescook@chromium.org
Signed-off-by: Kees Cook <kees@kernel.org>
When running fstest generic/423 with sfu mount option, it
was being skipped due to inability to create sockets:
generic/423 [not run] cifs does not support mknod/mkfifo
which can also be easily reproduced with their af_unix tool:
./src/af_unix /mnt1/socket-two bind: Operation not permitted
Fix sfu mount option to allow creating and reporting sockets.
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Add tests to check error codes when linking or renaming a mount root
directory. This previously triggered a kernel warning, but it is fixed
with the previous commit.
Cc: Günther Noack <gnoack@google.com>
Cc: Paul Moore <paul@paul-moore.com>
Link: https://lore.kernel.org/r/20240516181935.1645983-3-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Commit 7627a0edef ("ata: ahci: Drop low power policy board type")
dropped the board_ahci_low_power board type, and instead enables LPM if:
-The AHCI controller reports that it supports LPM (Partial/Slumber), and
-CONFIG_SATA_MOBILE_LPM_POLICY != 0, and
-The port is not defined as external in the per port PxCMD register, and
-The port is not defined as hotplug capable in the per port PxCMD
register.
Partial and Slumber LPM states can either be initiated by HIPM or DIPM.
For HIPM (host initiated power management) to get enabled, both the AHCI
controller and the drive have to report that they support HIPM.
For DIPM (device initiated power management) to get enabled, only the
drive has to report that it supports DIPM. However, the HBA will reject
device requests to enter LPM states which the HBA does not support.
The problem is that Apacer AS340 drives do not handle low power modes
correctly. The problem was most likely not seen before because no one
had used this drive with a AHCI controller with LPM enabled.
Add a quirk so that we do not enable LPM for this drive, since we see
command timeouts if we do (even though the drive claims to support DIPM).
Fixes: 7627a0edef ("ata: ahci: Drop low power policy board type")
Cc: stable@vger.kernel.org
Reported-by: Tim Teichmann <teichmanntim@outlook.de>
Closes: https://lore.kernel.org/linux-ide/87bk4pbve8.ffs@tglx/
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Commit 7627a0edef ("ata: ahci: Drop low power policy board type")
dropped the board_ahci_low_power board type, and instead enables LPM if:
-The AHCI controller reports that it supports LPM (Partial/Slumber), and
-CONFIG_SATA_MOBILE_LPM_POLICY != 0, and
-The port is not defined as external in the per port PxCMD register, and
-The port is not defined as hotplug capable in the per port PxCMD
register.
Partial and Slumber LPM states can either be initiated by HIPM or DIPM.
For HIPM (host initiated power management) to get enabled, both the AHCI
controller and the drive have to report that they support HIPM.
For DIPM (device initiated power management) to get enabled, only the
drive has to report that it supports DIPM. However, the HBA will reject
device requests to enter LPM states which the HBA does not support.
The problem is that AMD Radeon S3 SSD drives do not handle low power modes
correctly. The problem was most likely not seen before because no one
had used this drive with a AHCI controller with LPM enabled.
Add a quirk so that we do not enable LPM for this drive, since we see
command timeouts if we do (even though the drive claims to support both
HIPM and DIPM).
Fixes: 7627a0edef ("ata: ahci: Drop low power policy board type")
Cc: stable@vger.kernel.org
Reported-by: Doru Iorgulescu <doru.iorgulescu1@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218832
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Commit 7627a0edef ("ata: ahci: Drop low power policy board type")
dropped the board_ahci_low_power board type, and instead enables LPM if:
-The AHCI controller reports that it supports LPM (Partial/Slumber), and
-CONFIG_SATA_MOBILE_LPM_POLICY != 0, and
-The port is not defined as external in the per port PxCMD register, and
-The port is not defined as hotplug capable in the per port PxCMD
register.
Partial and Slumber LPM states can either be initiated by HIPM or DIPM.
For HIPM (host initiated power management) to get enabled, both the AHCI
controller and the drive have to report that they support HIPM.
For DIPM (device initiated power management) to get enabled, only the
drive has to report that it supports DIPM. However, the HBA will reject
device requests to enter LPM states which the HBA does not support.
The problem is that Crucial CT240BX500SSD1 drives do not handle low power
modes correctly. The problem was most likely not seen before because no
one had used this drive with a AHCI controller with LPM enabled.
Add a quirk so that we do not enable LPM for this drive, since we see
command timeouts if we do (even though the drive claims to support DIPM).
Fixes: 7627a0edef ("ata: ahci: Drop low power policy board type")
Cc: stable@vger.kernel.org
Reported-by: Aarrayy <lp610mh@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218832
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Commit:
7bc263840b ("sched/topology: Consolidate and clean up access to a CPU's max compute capacity")
removed rq->cpu_capacity_orig in favor of using arch_scale_freq_capacity()
calls. Export the underlying percpu symbol on x86 so that external trace
point helper modules can be made to work again.
Signed-off-by: Phil Auld <pauld@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240530181548.2039216-1-pauld@redhat.com
Fix the warning from 'make C=1 W=1':
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/x86/events/rapl.o
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lore.kernel.org/r/20240530-md-arch-x86-events-v1-1-e45ffa8af99f@quicinc.com
At converting between the legacy event and UMP, the parameters for
MIDI Song Position Pointer are incorrectly stored. It should have
been LSB -> MSB order while it stored in MSB -> LSB order.
This patch corrects the ordering.
Fixes: e9e02819a9 ("ALSA: seq: Automatic conversion of UMP events")
Link: https://lore.kernel.org/r/20240531075110.3250-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
