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v7.1-rc4
28355 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Sayali Patil
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31467b2382 |
powerpc/time: Remove redundant preempt_disable|enable() calls from arch_irq_work_raise()
A kernel panic is observed when handling machine check exceptions from real mode. BUG: Unable to handle kernel data access on read at 0xc00000006be21300 Oops: Kernel access of bad area, sig: 11 [#1] MSR: 8000000000001003 <SF,ME,RI,LE> CR: 88222248 XER: 00000005 CFAR: c00000000003ffc4 DAR: c00000006be21300 DSISR: 40000000 IRQMASK: 0 NIP [c000000000029e40] arch_irq_work_raise+0x10/0x70 LR [c00000000003ffc8] machine_check_queue_event+0xa8/0x150 Call Trace: [c0000000179d3c70] [c00000000003ff64] machine_check_queue_event+0x44/0x150 [c0000000179d3d30] [c0000000000084e0] machine_check_early_common+0x1f0/0x2c0 The crash occurs because arch_irq_work_raise() calls preempt_disable() from machine check exception (MCE) handlers running in real mode. In this context, accessing the preempt_count can fault, leading to the panic. The preempt_disable()/preempt_enable() pair in arch_irq_work_raise() was originally added by commit |
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Aboorva Devarajan
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dbc30a57bd |
powerpc/hv-gpci: fix preempt count leak in sysfs show paths
Four sysfs show() callbacks in hv-gpci take get_cpu_var(hv_gpci_reqb) (which calls preempt_disable()) but only call the matching put_cpu_var() on the error path under the 'out:' label. Every successful read leaks one preempt_disable(): processor_bus_topology_show() processor_config_show() affinity_domain_via_virtual_processor_show() affinity_domain_via_domain_show() (affinity_domain_via_partition_show() was already correct.) On a CONFIG_PREEMPT=y kernel, repeated reads raise preempt_count and eventually return to userspace with preemption still disabled. The next user-mode page fault then hits faulthandler_disabled() == 1, gets forced to SIGSEGV, and the resulting coredump trips 'BUG: scheduling while atomic' in call_usermodehelper_exec -> wait_for_completion_state -> schedule: BUG: scheduling while atomic: <task>/<pid>/0x00000004 ... __schedule_bug+0x6c/0x90 __schedule+0x58c/0x13a0 schedule+0x48/0x1a0 schedule_timeout+0x104/0x170 wait_for_completion_state+0x16c/0x330 call_usermodehelper_exec+0x254/0x2d0 vfs_coredump+0x1050/0x2590 get_signal+0xb9c/0xc80 do_notify_resume+0xf8/0x470 Add an out_success label that calls put_cpu_var() before returning the byte count, mirroring affinity_domain_via_partition_show(). Fixes: |
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Julian Braha
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aef656a0e6 |
powerpc: fix dead default for GUEST_STATE_BUFFER_TEST
The GUEST_STATE_BUFFER_TEST config option should default to KUNIT_ALL_TESTS so that if all tests are enabled then it is included, but currently the 'default KUNIT_ALL_TESTS' statement is shadowed by 'def_tristate n', meaning that this second default statement is currently dead code. It looks to me like the commit |
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Bart Van Assche
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f98020c22a |
powerpc/powermac: Remove pmac_low_i2c_{lock,unlock}()
Commit
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Ma Ke
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108d7f9512 |
powerpc/warp: Fix error handling in pika_dtm_thread
pika_dtm_thread() acquires client through of_find_i2c_device_by_node()
but fails to release it in error handling path. This could result in a
reference count leak, preventing proper cleanup and potentially
leading to resource exhaustion. Add put_device() to release the
reference in the error handling path.
Found by code review.
Cc: stable@vger.kernel.org
Fixes:
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Ally Heev
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acd1e47db0 |
powerpc: 82xx: fix uninitialized pointers with free attribute
Uninitialized pointers with `__free` attribute can cause undefined
behavior as the memory allocated to the pointer is freed automatically
when the pointer goes out of scope.
powerpc/km82xx doesn't have any bugs related to this as of now, but,
it is better to initialize and assign pointers with `__free` attribute
in one statement to ensure proper scope-based cleanup
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aPiG_F5EBQUjZqsl@stanley.mountain/
Signed-off-by: Ally Heev <allyheev@gmail.com>
Fixes:
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Linus Walleij
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8d57bb6173 |
powerpc/g5: Enable all windfarms by default
The G5 defconfig is clearly intended for the G5 Powermac series, and that should enable all the available windfarm drivers, or the machine will overheat a short while after booting and shut itself down, which is annoying. Signed-off-by: Linus Walleij <linusw@kernel.org> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260505-powermac-g5-config-v3-1-7747bf72f874@kernel.org |
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Krzysztof Kozlowski
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f583bd5f64 |
powerpc/pasemi: Drop redundant res assignment
Return value of pas_add_bridge() is not used, so code can be simplified to fix W=1 clang warnings: arch/powerpc/platforms/pasemi/pci.c:275:6: error: variable 'res' set but not used [-Werror,-Wunused-but-set-variable] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260317130823.240279-4-krzysztof.kozlowski@oss.qualcomm.com |
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Krzysztof Kozlowski
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8333e49160 |
powerpc/ps3: Drop redundant result assignment
Return value of ps3_start_probe_thread() is not used, so code can be simplified to fix W=1 clang warnings: arch/powerpc/platforms/ps3/device-init.c:953:6: error: variable 'result' set but not used [-Werror,-Wunused-but-set-variable] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260317130823.240279-3-krzysztof.kozlowski@oss.qualcomm.com |
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Nathan Chancellor
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60c71369ee |
powerpc/vdso: Drop -DCC_USING_PATCHABLE_FUNCTION_ENTRY from 32-bit flags with clang
After commit |
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Thomas Zimmermann
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4052b93204 |
arch/powerpc: Drop CONFIG_FIRMWARE_EDID from defconfig files
CONFIG_FIRMWARE_EDID=y depends on X86 or EFI_GENERIC_STUB. Neither is true here, so drop the lines from the defconfig files. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260401083023.214426-1-tzimmermann@suse.de |
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Shivani Nittor
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131717e656 |
powerpc/perf: Update check for PERF_SAMPLE_DATA_SRC marked events
The core-book3s PMU sampling code validates the SIER TYPE field
when PERF_SAMPLE_DATA_SRC is requested. The SIER TYPE field
indicates the instruction type and is only valid for
random sampling (marked events). To handle cases observed where
SIER TYPE could be zero even for marked events,validation was
added to drop such samples and increment event->lost_samples.
However, this validation was applied to all samples,
including continuous sampling. In continuous sampling mode,
the PMU does not set the SIER TYPE field, so it remains zero.
As a result, valid continuous samples were incorrectly
treated as invalid and dropped. Fixed this by gating the
SIER TYPE validation with mark_event, so the check runs only
for marked (random) events. Continuous samples now skip this
check and are recorded normally in the final data recording path.
Fixes:
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Christophe Leroy (CS GROUP)
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da107152c4 |
powerpc/8xx: Fix interrupt mask in cpm1_gpiochip_add16()
Allthough fsl,cpm1-gpio-irq-mask always contains a 16 bits value,
it is a standard u32 OF property as documented in
Documentation/devicetree/bindings/soc/fsl/cpm_qe/gpio.txt
The driver erroneously uses of_property_read_u16() leading to a
mask which is always 0.
Fix it by using of_property_read_u32() instead.
Fixes:
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Sourabh Jain
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38e989d504 |
powerpc/vmx: avoid KASAN instrumentation in enter_vmx_ops() for kexec
The kexec sequence invokes enter_vmx_ops() via copy_page() with the MMU
disabled. In this context, code must not rely on normal virtual address
translations or trigger page faults.
With KASAN enabled, functions get instrumented and may access shadow
memory using regular address translation. When executed with the MMU
off, this can lead to page faults (bad_page_fault) from which the
kernel cannot recover in the kexec path, resulting in a hang.
The kexec path sets preempt_count to HARDIRQ_OFFSET before entering
the MMU-off copy sequence.
current_thread_info()->preempt_count = HARDIRQ_OFFSET
kexec_sequence(..., copy_with_mmu_off = 1)
-> kexec_copy_flush(image)
copy_segments()
-> copy_page(dest, addr)
bl enter_vmx_ops()
if (in_interrupt())
return 0
beq .Lnonvmx_copy
Since kexec sets preempt_count to HARDIRQ_OFFSET, in_interrupt()
evaluates to true and enter_vmx_ops() returns early.
As in_interrupt() (and preempt_count()) are always inlined, mark
enter_vmx_ops() with __no_sanitize_address to avoid KASAN
instrumentation and shadow memory access with MMU disabled, helping
kexec boot fine with KASAN enabled.
Reported-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
Reviewed-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
Tested-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260407124349.1698552-2-sourabhjain@linux.ibm.com
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Sourabh Jain
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b3a97f9484 |
powerpc/kdump: fix KASAN sanitization flag for core_$(BITS).o
KASAN instrumentation is intended to be disabled for the kexec core
code, but the existing Makefile entry misses the object suffix. As a
result, the flag is not applied correctly to core_$(BITS).o.
So when KASAN is enabled, kexec_copy_flush and copy_segments in
kexec/core_64.c are instrumented, which can result in accesses to
shadow memory via normal address translation paths. Since these run
with the MMU disabled, such accesses may trigger page faults
(bad_page_fault) that cannot be handled in the kdump path, ultimately
causing a hang and preventing the kdump kernel from booting. The same
is true for kexec as well, since the same functions are used there.
Update the entry to include the “.o” suffix so that KASAN
instrumentation is properly disabled for this object file.
Fixes:
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Ritesh Harjani (IBM)
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629d1a901d |
pseries/papr-hvpipe: Fix style and checkpatch issues in enable_hvpipe_IRQ()
While at it let's also fix the similar style issue in enable_hvpipe_IRQ() function. This also fixes a minor checkpatch warning which I got due to an extra space before " ==". Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/1174f60d0ae128e773dbefd11dd8d46d69e7f50e.1777606826.git.ritesh.list@gmail.com |
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Ritesh Harjani (IBM)
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fe53d2ae82 |
pseries/papr-hvpipe: Refactor and simplify hvpipe_rtas_recv_msg()
Simplify hvpipe_rtas_recv_msg() by removing three levels of nesting...
if (!ret)
if (buf)
if (size < bytes_written)
... this refactoring of the function bails out to "out:" label first, in case
of any error. This simplifies the init flow.
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/bbe7ddf8b8e25c9be8fc5e2c4aea9e5fca128bf4.1777606826.git.ritesh.list@gmail.com
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Ritesh Harjani (IBM)
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4e2d83c804 |
pseries/papr-hvpipe: Kill task_struct pointer from struct hvpipe_source_info
We don't really use task_struct pointer for anything meaningful. So just kill it for now, and we can bring back later if we need this for any future debug purposes. Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/895e061e45cdc95db36fa7f27aa1922b81eed867.1777606826.git.ritesh.list@gmail.com |
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Ritesh Harjani (IBM)
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2eeac57748 |
pseries/papr-hvpipe: Simplify spin unlock usage in papr_hvpipe_handle_release()
Once the src_info is removed from the global list, no one can access it. This simplies the usage of spin_unlock_irqrestore() in papr_hvpipe_handle_release() Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/4a980331557af3d10aada8576aaa16cddc691c65.1777606826.git.ritesh.list@gmail.com |
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Ritesh Harjani (IBM)
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d48654bd8b |
pseries/papr-hvpipe: Fix the usage of copy_to_user()
copy_to_user() return bytes_not_copied to the user buffer. If there was
an error writing bytes into the user buffer, i.e. if copy_to_user
returns a non-zero value, then we should simply return -EFAULT from the
->read() call.
Otherwise, in the non-patched version, we may end up mixing
"bytes_not_copied + bytes_copied (HVPIPE_HDR_LEN)" as the return value
to the user in ->read() call
Also let's make sure we clear the hvpipe_status flag, if we have
consumed the hvpipe msg by making the rtas call. ret = -EFAULT means
copy_to_user has failed but that still means that the msg was read from
the hvpipe, hence for both cases, success & -EFAULT, we should clear the
HVPIPE_MSG_AVAILABLE flag in hvpipe_status.
Cc: stable@vger.kernel.org
Fixes:
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Ritesh Harjani (IBM)
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713e468cdb |
pseries/papr-hvpipe: Fix & simplify error handling in papr_hvpipe_init()
Remove such 3 levels of nesting patterns to check success return values
from function calls.
ret = enable_hvpipe_IRQ()
if (!ret)
ret = set_hvpipe_sys_param(1)
if (!ret)
ret = misc_register()
Instead just bail out to "out*:" labels, in case of any error. This
simplifies the init flow.
While at it let's also fix the following error handling logic:
We have already enabled interrupt sources and enabled hvpipe to received
interrupts, if misc_register() fails, we will destroy the workqueue, but
the HMC might send us a msg via hvpipe which will call, queue work on
the workqueue which might be destroyed.
So instead, let's reverse the order of enabling set_hvpipe_sys_param(1)
and in case of an error let's remove the misc dev by calling
misc_deregister().
Cc: stable@vger.kernel.org
Fixes:
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Ritesh Harjani (IBM)
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1b9f7aafa4 |
pseries/papr-hvpipe: Fix null ptr deref in papr_hvpipe_dev_create_handle()
commit |
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Ritesh Harjani (IBM)
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cefeed4429 |
pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace
The hdr variable is allocated on the stack and only hdr.version and
hdr.flags are initialized explicitly. Because the struct papr_hvpipe_hdr
contains reserved padding bytes (reserved[3] and reserved2[40]), these
could leak the uninitialized bytes to userspace after copy_to_user().
This patch fixes that by initializing the whole struct to 0.
Cc: stable@vger.kernel.org
Fixes:
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Ritesh Harjani (IBM)
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7a4f0846ee |
pseries/papr-hvpipe: Fix race with interrupt handler
While executing ->ioctl handler or ->release handler, if an interrupt
fires on the same cpu, then we can enter into a deadlock.
This patch fixes both these handlers to take spin_lock_irq{save|restore}
versions of the lock to prevent this deadlock.
Cc: stable@vger.kernel.org
Fixes:
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Athira Rajeev
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0342545a29 |
powerpc/pseries/htmdump: Add memory configuration dump support to htmdump module
H_HTM (Hardware Trace Macro) hypervisor call has capability to capture SystemMemory Configuration. This information helps to understand the address mapping for the partitions in the system. Support dumping system memory configuration from Hardware Trace Macro (HTM) function via debugfs interface. Under debugfs folder "/sys/kernel/debug/powerpc/htmdump", add file "htmsystem_mem". The interface allows only read of this file which will present the content of HTM buffer from the hcall. The 16th offset of HTM buffer has value for the number of entries for array of processors. Use this information to copy data to the debugfs file Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260314132953.27269-1-atrajeev@linux.ibm.com |
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Athira Rajeev
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0031424cbc |
powerpc/pseries/htmdump: Fix the offset value used in htm status dump
H_HTM call is invoked using three parameters specifying
the address of the buffer, size of the buffer and offset
where to read from. offset used was always zero.
"offset" is value from output buffer header that points
to next entry to dump. zero is the first entry to dump.
next entry is read from the output bufferbyte offset 0x8.
Update htmstatus_read() function to use right offset. Return
when offset points to -1
Fixes:
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Athira Rajeev
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4ec6ade73f |
powerpc/pseries/htmdump: Fix the offset value used in processor configuration dump
H_HTM call is invoked using three parameters specifying
the address of the buffer, size of the buffer and offset
where to read from. offset used was always zero.
"offset" is value from output buffer header that points
to next entry to dump. zero is the first entry to dump.
next entry is read from the output bufferbyte offset 0x8.
Update htminfo_read() function to use right offset. Return
when offset points to -1
Fixes:
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Athira Rajeev
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54d54f3381 |
powerpc/pseries/htmdump: Free the global buffers in htmdump module exit
htmdump modules uses global memory buffers to capture details like capabilities, status of specified HTM, read the trace buffer. These are initialized during module init and hence needs to be freed in module exit. Patch adds freeing of the memory in module exit. The change also includes minor clean up for the variable name. The read call back for the debugfs interface file saves filp->private_data to local variable name which is same as global variable name for the memory buffers. Rename these local variable names. Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260314132432.25581-1-atrajeev@linux.ibm.com |
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Linus Torvalds
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64edfa6506 |
Delete some obsolete networking code
Old code like amateur radio and NFC have long been a burden to core networking developers. syzbot loves to find bugs in BKL-era code, and noobs try to fix them. If we want to have a fighting chance of surviving the LLM-pocalypse this code needs to find a dedicated owner or get deleted. We've talked about these deletions multiple times in the past and every time someone wanted the code to stay. It is never very clear to me how many of those people actually use the code vs are just nostalgic to see it go. Amateur radio did have occasional users (or so I think) but most users switched to user space implementations since its all super slow stuff. Nobody stepped up to maintain the kernel code. We were lucky enough to find someone who wants to help with NFC so we're giving that a chance. Let's try to put the rest of this code behind us. Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmnqqWYACgkQMUZtbf5S IrtEpQ/9F5+8POE6dg6gJVLDKx1+i6GiaOIweAl8h5DatzhBAAGuGr9JyTw0P/iy QX7/SU8WQIhi+LVTYBX9M5bJ3Rf+Iws4dll0CyoTTdOFvGwCAck8Ee/w+1gZdsQY aG0mQPmftfMEdZGX3KXt8UPDWG7QX4w1gSqxqYcSs1ohN6Txi1F94tmgqXgzYHzv vxWP3cF3XTv4eM6BpQj4tiLT3hvrTUfoCZEn9oF4Hn+miYU/yNlWxh0/pmfNjcxd vpNN0VfJVK48uPrj57Ep2x9OjkHPviojrUZT0Y55ENBhn1Lykry4MaxsJVsVYhuC OqJHQYTFyxwT/USTJxs1gplFyO0i37oCEEt43BKm2KS7rYHgc4pQgMJz7R2IS3wL z1xFl45QFt5kX3pw8BvWPXwBomkbDeFORB40Y1qc8RHMfAUKqOhbhzV8rDq9uKup 0nJxdijdh3/2qdO+LB1pU5rq/MbfAxOQSnRJmKLoKLVljaZHMAVbm829sdap8OM+ VMnyPF5hOAuTHV0NZJJ2BbcznI4MFDxM1lNEWFuRC39RQeeGRIHsNMjvs4HMHLaW V827UBXpUOK6HR3nGCKX3VpLJByUYAIkdIKvRugbWdynvXAw+FJUHx4wRzvFi6oi E7ucUY+FI5YOS1rmQJ+rqBjhThcIAdj2U9SNAykDKRVa7zPEUMU= =3vMU -----END PGP SIGNATURE----- Merge tag 'net-deletions' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking deletions from Jakub Kicinski: "Delete some obsolete networking code Old code like amateur radio and NFC have long been a burden to core networking developers. syzbot loves to find bugs in BKL-era code, and noobs try to fix them. If we want to have a fighting chance of surviving the LLM-pocalypse this code needs to find a dedicated owner or get deleted. We've talked about these deletions multiple times in the past and every time someone wanted the code to stay. It is never very clear to me how many of those people actually use the code vs are just nostalgic to see it go. Amateur radio did have occasional users (or so I think) but most users switched to user space implementations since its all super slow stuff. Nobody stepped up to maintain the kernel code. We were lucky enough to find someone who wants to help with NFC so we're giving that a chance. Let's try to put the rest of this code behind us" * tag 'net-deletions' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: drivers: net: 8390: wd80x3: Remove this driver drivers: net: 8390: ultra: Remove this driver drivers: net: 8390: AX88190: Remove this driver drivers: net: fujitsu: fmvj18x: Remove this driver drivers: net: smsc: smc91c92: Remove this driver drivers: net: smsc: smc9194: Remove this driver drivers: net: amd: nmclan: Remove this driver drivers: net: amd: lance: Remove this driver drivers: net: 3com: 3c589: Remove this driver drivers: net: 3com: 3c574: Remove this driver drivers: net: 3com: 3c515: Remove this driver drivers: net: 3com: 3c509: Remove this driver net: packetengines: remove obsolete yellowfin driver and vendor dir net: packetengines: remove obsolete hamachi driver net: remove unused ATM protocols and legacy ATM device drivers net: remove ax25 and amateur radio (hamradio) subsystem net: remove ISDN subsystem and Bluetooth CMTP caif: remove CAIF NETWORK LAYER |
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Andrew Lunn
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b0b807aa78 |
drivers: net: 8390: ultra: Remove this driver
The ultra was written by Donald Becker 1993 to 1998. It is an ISA device, so unlikely to be used with modern kernels. Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-14-08a5b59784d5@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Andrew Lunn
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5783522348 |
drivers: net: 8390: AX88190: Remove this driver
The ax88190 was written by David A. Hinds in 2001. It is an PCMCIA device, so unlikely to be used with modern kernels. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-12-08a5b59784d5@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Andrew Lunn
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51c1c88b64 |
drivers: net: fujitsu: fmvj18x: Remove this driver
The fmvj18x was written by Shingo Fujimoto in 2002. It is an PCMCIA device, so unlikely to be used with modern kernels. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-11-08a5b59784d5@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Andrew Lunn
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a3fb9a5bf6 |
drivers: net: smsc: smc91c92: Remove this driver
The smc91c92 was written by David A Hinds in 1999. It is an PCMCIA device, so unlikely to be used with modern kernels. Remove the Documentation as well, since it refers to kernel versions 1.2.13 until 1.3.71 and FTP sites which no longer exist. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-8-08a5b59784d5@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Andrew Lunn
|
29103588d7 |
drivers: net: amd: nmclan: Remove this driver
The nmclan was written by Roger C Pao in 1995. It is an PCMCIA device, so unlikely to be used with modern kernels. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-6-08a5b59784d5@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Andrew Lunn
|
4ff8d0672d |
drivers: net: 3com: 3c589: Remove this driver
The 3c589 was written by David A. Hinds 2001. It is an PCMCIA device, so unlikely to be used with modern kernels. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-4-08a5b59784d5@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Andrew Lunn
|
a7fbf27d77 |
drivers: net: 3com: 3c574: Remove this driver
The 3c574 was written by Donald Becker between 1993-1998. It is an PCMCIA device, so unlikely to be used with modern kernels. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-3-08a5b59784d5@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Andrew Lunn
|
91f3a27ae9 |
drivers: net: 3com: 3c509: Remove this driver
The 3c509 was written by Donald Becker between 1993-2000. It is an ISA device, so unlikely to be used with modern kernels. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-1-08a5b59784d5@lunn.ch Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Mingyu Wang
|
aec3202247 |
net: packetengines: remove obsolete yellowfin driver and vendor dir
Similar to the hamachi driver, the yellowfin driver supports hardware that is over two decades old and no longer in active use. Since yellowfin was the last remaining driver in the packetengines vendor directory, we can now safely remove the entire directory and drop its associated references from the parent Kconfig and Makefile. This eliminates dead code and reduces the overall maintenance burden on the netdev subsystem. Signed-off-by: Mingyu Wang <25181214217@stu.xidian.edu.cn> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422044820.485660-3-25181214217@stu.xidian.edu.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Mingyu Wang
|
4cf42f9c3e |
net: packetengines: remove obsolete hamachi driver
The PacketEngine Hamachi driver is for PCI hardware that has been obsolete for over two decades. It recently triggered arithmetic exceptions during automated fuzzing. As suggested by maintainers, remove the driver entirely to eliminate dead code and reduce the maintenance burden. Signed-off-by: Mingyu Wang <25181214217@stu.xidian.edu.cn> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260422044820.485660-2-25181214217@stu.xidian.edu.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Jakub Kicinski
|
6deb535950 |
net: remove unused ATM protocols and legacy ATM device drivers
Remove the ATM protocol modules and PCI/SBUS ATM device drivers that are no longer in active use. The ATM core protocol stack, PPPoATM, BR2684, and USB DSL modem drivers (drivers/usb/atm/) are retained in-tree to maintain PPP over ATM (PPPoA) and PPPoE-over-BR2684 support for DSL connections. The Solos ADSL2+ PCI driver is also retained. Removed ATM protocol modules: - net/atm/clip.c - Classical IP over ATM (RFC 2225) - net/atm/lec.c - LAN Emulation Client (LANE) - net/atm/mpc.c, mpoa_caches.c, mpoa_proc.c - Multi-Protocol Over ATM Removed PCI/SBUS ATM device drivers (drivers/atm/): - adummy, atmtcp - software/testing ATM devices - eni - Efficient Networks ENI155P (OC-3, ~1995) - fore200e - FORE Systems 200E PCI/SBUS (OC-3, ~1999) - he - ForeRunner HE (OC-3/OC-12, ~2000) - idt77105 - IDT 77105 25 Mbps ATM PHY - idt77252 - IDT 77252 NICStAR II (OC-3, ~2000) - iphase - Interphase ATM PCI (OC-3/DS3/E3) - lanai - Efficient Networks Speedstream 3010 - nicstar - IDT 77201 NICStAR (155/25 Mbps, ~1999) - suni - PMC S/UNI SONET PHY library Also clean up references in: - net/bridge/ - remove ATM LANE hook (br_fdb_test_addr_hook, br_fdb_test_addr) - net/core/dev.c - remove br_fdb_test_addr_hook export - defconfig files - remove ATM driver config options The removed code is moved to an out-of-tree module package (mod-orphan). Acked-by: Andy Shevchenko <andriy.shevchenko@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20260422041846.2035118-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
45dcf5e288 |
PCMCIA fixes and cleanups for v7.1
A number of minor PCMCIA bugfixes and cleanups, and a patch removing obsolete host controller drivers. -----BEGIN PGP SIGNATURE----- iQJPBAABCgA5FiEEmgXaWKgmjrvkPhLCmpdgiUyNow0FAmnqWwIbHGxpbnV4QGRv bWluaWticm9kb3dza2kubmV0AAoJEJqXYIlMjaMNifYP/R89OwUCazfebvE+mzTT Nlj11sxOaMF9ZMDkWZlP49TkoBZjQ9MEb6hGgw99SLLf5bYoHQFHZ0RMIwM/7UXv y66ZLqfuGgdenUre8QROsYP1uegO4gh41aRm9a7cswoAkNlnIgKhH1k2/jhRwlXT rrl2CObgkdAtpnZDb2GFyjL2Y5VEKoKJf3nrNlDs1R4NBDVmfisojlfLeYFGGBsq CESwNcj9eEj+NuUhdWOmHXjXOvsDxk2PpTUEettswcdInOj8MApScbmyj/UqCX6A RTI/myAeLeGTMgTrZCfIqhCiaZbBdVcoKYakRfAZVyM1KuHQo/PmAlMPhv5C4lRT V8Fqz3RTtcYxblTMoxWh8pMaCKoH905YIINs54rkFwAqgq6TXgu26QdZtH+YR2V/ /0JI613MfSDhC2WwEF3j+sW0WlCnGSFZ5yzUZQmoQYf4US3ZOhp1JgaK+18QtqUa 00e0OQkLNN03Nj7UcoMfLHANOBVjLV8C8U+zkHT1t5AI4bRlP8FSTNrFP0f2VKWZ rm0S7CWovRS9mewOOXVHv2Wo0bxSaBsBxrD2G8n1PRE96xpXZvjuUKQtSyX6Totk lacS2HziABD7IiuKH0djC1MPPZkbZcct3TO8PggVYkrDa9nyQAsG4Z2+S85f8+Qg ALVHDj4B4bbJEVyn4duU9y+F =y3cK -----END PGP SIGNATURE----- Merge tag 'pcmcia-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux Pull PCMCIA updates from Dominik Brodowski: "A number of minor PCMCIA bugfixes and cleanups, and a patch removing obsolete host controller drivers" * tag 'pcmcia-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: pcmcia: remove obsolete host controller drivers pcmcia: Convert to use less arguments in pci_bus_for_each_resource() PCMCIA: Fix garbled log messages for KERN_CONT |
||
|
Linus Torvalds
|
2a4c0c11c0 |
s390 updates for 7.1 merge window
- Add support for CONFIG_PAGE_TABLE_CHECK and enable it in debug_defconfig. s390 can only tell user from kernel PTEs via the mm, so mm_struct is now passed into pxx_user_accessible_page() callbacks - Expose the PCI function UID as an arch-specific slot attribute in sysfs so a function can be identified by its user-defined id while still in standby. Introduces a generic ARCH_PCI_SLOT_GROUPS hook in drivers/pci/slot.c - Refresh s390 PCI documentation to reflect current behavior and cover previously undocumented sysfs attributes - zcrypt device driver cleanup series: consistent field types, clearer variable naming, a kernel-doc warning fix, and a comment explaining the intentional synchronize_rcu() in pkey_handler_register() - Provide an s390 arch_raw_cpu_ptr() that avoids the detour via get_lowcore() using alternatives, shrinking defconfig by ~27 kB - Guard identity-base randomization with kaslr_enabled() so nokaslr keeps the identity mapping at 0 even with CONFIG_RANDOMIZE_IDENTITY_BASE=y - Build S390_MODULES_SANITY_TEST as a module only by requiring KUNIT && m, since built-in would not exercise module loading - Remove the permanently commented-out HMCDRV_DEV_CLASS create_class() code in the hmcdrv driver - Drop stale ident_map_size extern conflicting with asm/page.h -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAmno78kACgkQjYWKoQLX FBiHbggAmW5hPIDf4F8HLomMREaaQb7QAyYwfeefwhcFUXSMu8td8S68aN4UkOnS DGSFjb+V6Nqd+ewrF7IS9pRU9YFsmBqo3MnLdcJ/ojZFz8BlwoAi+E4AD1a38hY2 9zh2siPBMjydqBRUn6zjsK8auk4e8r44iS5MNNMXDF2ePE/PnPKTm93GhbtnnM6r a7mQkiPbi6j0sN/UU+pQkhS4fm2XNaGpCGGX0W0v2RdLIYZ9zQQdg4TaEsjQ5wZA OC3P8LG3OyJjnxsY2J8PIKK0VM0JP67KUGnQOi1y8HbN1LkFfAWF6CK7tsyUE/JM TYg7ENs2mUMmaa8niOGkiXzjjAxD0g== =NpmP -----END PGP SIGNATURE----- Merge tag 's390-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Add support for CONFIG_PAGE_TABLE_CHECK and enable it in debug_defconfig. s390 can only tell user from kernel PTEs via the mm, so mm_struct is now passed into pxx_user_accessible_page() callbacks - Expose the PCI function UID as an arch-specific slot attribute in sysfs so a function can be identified by its user-defined id while still in standby. Introduces a generic ARCH_PCI_SLOT_GROUPS hook in drivers/pci/slot.c - Refresh s390 PCI documentation to reflect current behavior and cover previously undocumented sysfs attributes - zcrypt device driver cleanup series: consistent field types, clearer variable naming, a kernel-doc warning fix, and a comment explaining the intentional synchronize_rcu() in pkey_handler_register() - Provide an s390 arch_raw_cpu_ptr() that avoids the detour via get_lowcore() using alternatives, shrinking defconfig by ~27 kB - Guard identity-base randomization with kaslr_enabled() so nokaslr keeps the identity mapping at 0 even with RANDOMIZE_IDENTITY_BASE=y - Build S390_MODULES_SANITY_TEST as a module only by requiring KUNIT && m, since built-in would not exercise module loading - Remove the permanently commented-out HMCDRV_DEV_CLASS create_class() code in the hmcdrv driver - Drop stale ident_map_size extern conflicting with asm/page.h * tag 's390-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/zcrypt: Fix warning about wrong kernel doc comment PCI: s390: Expose the UID as an arch specific PCI slot attribute docs: s390/pci: Improve and update PCI documentation s390/pkey: Add comment about synchronize_rcu() to pkey base s390/hmcdrv: Remove commented out code s390/zcrypt: Slight rework on the agent_id field s390/zcrypt: Explicitly use a card variable in _zcrypt_send_cprb s390/zcrypt: Rework MKVP fields and handling s390/zcrypt: Make apfs a real unsigned int field s390/zcrypt: Rework domain processing within zcrypt device driver s390/zcrypt: Move inline function rng_type6cprb_msgx from header to code s390/percpu: Provide arch_raw_cpu_ptr() s390: Enable page table check for debug_defconfig s390/pgtable: Add s390 support for page table check s390/pgtable: Use set_pmd_bit() to invalidate PMD entry mm/page_table_check: Pass mm_struct to pxx_user_accessible_page() s390/boot: Respect kaslr_enabled() for identity randomization s390/Kconfig: Make modules sanity test a module-only option s390/setup: Drop stale ident_map_size declaration |
||
|
Linus Torvalds
|
9055c64567 |
memblock: updates for 7.0-rc1
* improve debugability of reserve_mem kernel parameter handling with print outs in case of a failure and debugfs info showing what was actually reserved * Make memblock_free_late() and free_reserved_area() use the same core logic for freeing the memory to buddy and ensure it takes care of updating memblock arrays when ARCH_KEEP_MEMBLOCK is enabled. -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEeOVYVaWZL5900a/pOQOGJssO/ZEFAmnjRmsQHHJwcHRAa2Vy bmVsLm9yZwAKCRA5A4Ymyw79kYh0CAC4NpZGFqpEBep1eQcfqsPH05dvp1LUXDNk i5GwS2ht/F5D9GcD+EyoYRQjRM8k+XZyOe3sqEF01Uav/rHAv3XrITg/pfiA92AR K7CvQv4NvyQqUNcv/mEb+P8niriJ4oHRXCag9inop1jo/x3Mym07oEy73rknAx9r ZQKwoFNOM/QQGVb9hZUANKCkE8cAsUXG89yEOH0n17FOahC0PZbK/vxjeO+br3IL HxEoC5l1j4cUauf8XEhsVXXdch0iqit/fB3ROePYFNCx7koVYHk6Yl1w++AM0RUA ypOmfPsSiqLY2ciuTIAnpTeMfQkkhEmMI3mp6T5BUBwSKJxLRaSM =c1xd -----END PGP SIGNATURE----- Merge tag 'memblock-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock Pull memblock updates from Mike Rapoport: - improve debuggability of reserve_mem kernel parameter handling with print outs in case of a failure and debugfs info showing what was actually reserved - Make memblock_free_late() and free_reserved_area() use the same core logic for freeing the memory to buddy and ensure it takes care of updating memblock arrays when ARCH_KEEP_MEMBLOCK is enabled. * tag 'memblock-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: x86/alternative: delay freeing of smp_locks section memblock: warn when freeing reserved memory before memory map is initialized memblock, treewide: make memblock_free() handle late freeing memblock: make free_reserved_area() update memblock if ARCH_KEEP_MEMBLOCK=y memblock: extract page freeing from free_reserved_area() into a helper memblock: make free_reserved_area() more robust mm: move free_reserved_area() to mm/memblock.c powerpc: opal-core: pair alloc_pages_exact() with free_pages_exact() powerpc: fadump: pair alloc_pages_exact() with free_pages_exact() memblock: reserve_mem: fix end caclulation in reserve_mem_release_by_name() memblock: move reserve_bootmem_range() to memblock.c and make it static memblock: Add reserve_mem debugfs info memblock: Print out errors on reserve_mem parser |
||
|
Linus Torvalds
|
eb0d6d97c2 |
bpf-fixes
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
"Most of the diff stat comes from Xu Kuohai's fix to emit ENDBR/BTI,
since all JITs had to be touched to move constant blinding out and
pass bpf_verifier_env in.
- Fix use-after-free in arena_vm_close on fork (Alexei Starovoitov)
- Dissociate struct_ops program with map if map_update fails (Amery
Hung)
- Fix out-of-range and off-by-one bugs in arm64 JIT (Daniel Borkmann)
- Fix precedence bug in convert_bpf_ld_abs alignment check (Daniel
Borkmann)
- Fix arg tracking for imprecise/multi-offset in BPF_ST/STX insns
(Eduard Zingerman)
- Copy token from main to subprogs to fix missing kallsyms (Eduard
Zingerman)
- Prevent double close and leak of btf objects in libbpf (Jiri Olsa)
- Fix af_unix null-ptr-deref in sockmap (Michal Luczaj)
- Fix NULL deref in map_kptr_match_type for scalar regs (Mykyta
Yatsenko)
- Avoid unnecessary IPIs. Remove redundant bpf_flush_icache() in
arm64 and riscv JITs (Puranjay Mohan)
- Fix out of bounds access. Validate node_id in arena_alloc_pages()
(Puranjay Mohan)
- Reject BPF-to-BPF calls and callbacks in arm32 JIT (Puranjay Mohan)
- Refactor all JITs to pass bpf_verifier_env to emit ENDBR/BTI for
indirect jump targets on x86-64, arm64 JITs (Xu Kuohai)
- Allow UTF-8 literals in bpf_bprintf_prepare() (Yihan Ding)"
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: (32 commits)
bpf, arm32: Reject BPF-to-BPF calls and callbacks in the JIT
bpf: Dissociate struct_ops program with map if map_update fails
bpf: Validate node_id in arena_alloc_pages()
libbpf: Prevent double close and leak of btf objects
selftests/bpf: cover UTF-8 trace_printk output
bpf: allow UTF-8 literals in bpf_bprintf_prepare()
selftests/bpf: Reject scalar store into kptr slot
bpf: Fix NULL deref in map_kptr_match_type for scalar regs
bpf: Fix precedence bug in convert_bpf_ld_abs alignment check
bpf, arm64: Emit BTI for indirect jump target
bpf, x86: Emit ENDBR for indirect jump targets
bpf: Add helper to detect indirect jump targets
bpf: Pass bpf_verifier_env to JIT
bpf: Move constants blinding out of arch-specific JITs
bpf, sockmap: Take state lock for af_unix iter
bpf, sockmap: Fix af_unix null-ptr-deref in proto update
selftests/bpf: Extend bpf_iter_unix to attempt deadlocking
bpf, sockmap: Fix af_unix iter deadlock
bpf, sockmap: Annotate af_unix sock:: Sk_state data-races
selftests/bpf: verify kallsyms entries for token-loaded subprograms
...
|
||
|
Linus Torvalds
|
9cdca33667 |
integrity-v7.1
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Merge tag 'integrity-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity updates from Mimi Zohar:
"There are two main changes, one feature removal, some code cleanup,
and a number of bug fixes.
Main changes:
- Detecting secure boot mode was limited to IMA. Make detecting
secure boot mode accessible to EVM and other LSMs
- IMA sigv3 support was limited to fsverity. Add IMA sigv3 support
for IMA regular file hashes and EVM portable signatures
Remove:
- Remove IMA support for asychronous hash calculation originally
added for hardware acceleration
Cleanup:
- Remove unnecessary Kconfig CONFIG_MODULE_SIG and CONFIG_KEXEC_SIG
tests
- Add descriptions of the IMA atomic flags
Bug fixes:
- Like IMA, properly limit EVM "fix" mode
- Define and call evm_fix_hmac() to update security.evm
- Fallback to using i_version to detect file change for filesystems
that do not support STATX_CHANGE_COOKIE
- Address missing kernel support for configured (new) TPM hash
algorithms
- Add missing crypto_shash_final() return value"
* tag 'integrity-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
evm: Enforce signatures version 3 with new EVM policy 'bit 3'
integrity: Allow sigv3 verification on EVM_XATTR_PORTABLE_DIGSIG
ima: add support to require IMA sigv3 signatures
ima: add regular file data hash signature version 3 support
ima: Define asymmetric_verify_v3() to verify IMA sigv3 signatures
ima: remove buggy support for asynchronous hashes
integrity: Eliminate weak definition of arch_get_secureboot()
ima: Add code comments to explain IMA iint cache atomic_flags
ima_fs: Correctly create securityfs files for unsupported hash algos
ima: check return value of crypto_shash_final() in boot aggregate
ima: Define and use a digest_size field in the ima_algo_desc structure
powerpc/ima: Drop unnecessary check for CONFIG_MODULE_SIG
ima: efi: Drop unnecessary check for CONFIG_MODULE_SIG/CONFIG_KEXEC_SIG
ima: fallback to using i_version to detect file change
evm: fix security.evm for a file with IMA signature
s390: Drop unnecessary CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT
evm: Don't enable fix mode when secure boot is enabled
integrity: Make arch_ima_get_secureboot integrity-wide
|
||
|
Linus Torvalds
|
440d6635b2 |
mm.git review status for linus..mm-nonmm-stable
Total patches: 126
Reviews/patch: 0.92
Reviewed rate: 76%
- The 2 patch series "pid: make sub-init creation retryable" from Oleg
Nesterov increases the robustness of our creation of init in a new
namespace. By clearing away some historical cruft which is no longer
needed. Also some documentation fixups are provided.
- The 2 patch series "selftests/fchmodat2: Error handling and general"
from Mark Brown has a fixup and a cleanup for the fchmodat2() syscall
selftest.
- The 3 patch series "lib: polynomial: Move to math/ and clean up" from
Andy Shevchenko does as advertised.
- The 3 patch series "hung_task: Provide runtime reset interface for
hung task detector" from Aaron Tomlin gives administrators the ability
to zero out /proc/sys/kernel/hung_task_detect_count.
- The 2 patch series "tools/getdelays: use the static UAPI headers from
tools/include/uapi" from Thomas Weißschuh teaches getdelays to use the
in-kernel UAPI headers rather than the system-provided ones.
- The 5 patch series "watchdog/hardlockup: Improvements to hardlockup"
from Mayank Rungta provides several cleanups and fixups to the
hardlockup detector code and its documentation.
- The 2 patch series "lib/bch: fix undefined behavior from signed
left-shifts" from Josh Law provides a couple of small/theoretical fixes
in the bch code.
- The 2 patch series "ocfs2/dlm: fix two bugs in dlm_match_regions()"
from Junrui Luo does what is claims.
- The 27 patch series "cleanup the RAID5 XOR library" from Christoph
Hellwig is a quite far-reaching cleanup to this code. I can't do better
than to quote Christoph:
The XOR library used for the RAID5 parity is a bit of a mess right
now. The main file sits in crypto/ despite not being cryptography and
not using the crypto API, with the generic implementations sitting in
include/asm-generic and the arch implementations sitting in an asm/
header in theory. The latter doesn't work for many cases, so
architectures often build the code directly into the core kernel, or
create another module for the architecture code.
Change this to a single module in lib/ that also contains the
architecture optimizations, similar to the library work Eric Biggers
has done for the CRC and crypto libraries later. After that it
changes to better calling conventions that allow for smarter
architecture implementations (although none is contained here yet),
and uses static_call to avoid indirection function call overhead.
- The 2 patch series "lib/list_sort: Clean up list_sort() scheduling
workarounds" from Kuan-Wei Chiu cleans up this library code by removing
a hacky thing which was added for UBIFS, which UBIFS doesn't actually
need.
- The 5 patch series "Fix bugs in extract_iter_to_sg()" from Christian
Ehrhardt fixes a few bugs in the scatterlist code, adds in-kernel tests
for the now-fixed bugs and fixes a leak in the test itself.
- The 3 patch series "kdump: Enable LUKS-encrypted dump target support
in ARM64 and PowerPC" from Coiby Xu eenables support of the
LUKS-encrypted device dump target on arm64 and powerpc.
- The 4 patch series "ocfs2: consolidate extent list validation into
block read callbacks" from Joseph Qi addresses ocfs2's validation of
extent list fields - cleanup, simplification, robustness. (Kernel test
robot loves mounting corrupted fs images!)
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Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "pid: make sub-init creation retryable" (Oleg Nesterov)
Make creation of init in a new namespace more robust by clearing away
some historical cruft which is no longer needed. Also some
documentation fixups
- "selftests/fchmodat2: Error handling and general" (Mark Brown)
Fix and a cleanup for the fchmodat2() syscall selftest
- "lib: polynomial: Move to math/ and clean up" (Andy Shevchenko)
- "hung_task: Provide runtime reset interface for hung task detector"
(Aaron Tomlin)
Give administrators the ability to zero out
/proc/sys/kernel/hung_task_detect_count
- "tools/getdelays: use the static UAPI headers from
tools/include/uapi" (Thomas Weißschuh)
Teach getdelays to use the in-kernel UAPI headers rather than the
system-provided ones
- "watchdog/hardlockup: Improvements to hardlockup" (Mayank Rungta)
Several cleanups and fixups to the hardlockup detector code and its
documentation
- "lib/bch: fix undefined behavior from signed left-shifts" (Josh Law)
A couple of small/theoretical fixes in the bch code
- "ocfs2/dlm: fix two bugs in dlm_match_regions()" (Junrui Luo)
- "cleanup the RAID5 XOR library" (Christoph Hellwig)
A quite far-reaching cleanup to this code. I can't do better than to
quote Christoph:
"The XOR library used for the RAID5 parity is a bit of a mess right
now. The main file sits in crypto/ despite not being cryptography
and not using the crypto API, with the generic implementations
sitting in include/asm-generic and the arch implementations
sitting in an asm/ header in theory. The latter doesn't work for
many cases, so architectures often build the code directly into
the core kernel, or create another module for the architecture
code.
Change this to a single module in lib/ that also contains the
architecture optimizations, similar to the library work Eric
Biggers has done for the CRC and crypto libraries later. After
that it changes to better calling conventions that allow for
smarter architecture implementations (although none is contained
here yet), and uses static_call to avoid indirection function call
overhead"
- "lib/list_sort: Clean up list_sort() scheduling workarounds"
(Kuan-Wei Chiu)
Clean up this library code by removing a hacky thing which was added
for UBIFS, which UBIFS doesn't actually need
- "Fix bugs in extract_iter_to_sg()" (Christian Ehrhardt)
Fix a few bugs in the scatterlist code, add in-kernel tests for the
now-fixed bugs and fix a leak in the test itself
- "kdump: Enable LUKS-encrypted dump target support in ARM64 and
PowerPC" (Coiby Xu)
Enable support of the LUKS-encrypted device dump target on arm64 and
powerpc
- "ocfs2: consolidate extent list validation into block read callbacks"
(Joseph Qi)
Cleanup, simplify, and make more robust ocfs2's validation of extent
list fields (Kernel test robot loves mounting corrupted fs images!)
* tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (127 commits)
ocfs2: validate group add input before caching
ocfs2: validate bg_bits during freefrag scan
ocfs2: fix listxattr handling when the buffer is full
doc: watchdog: fix typos etc
update Sean's email address
ocfs2: use get_random_u32() where appropriate
ocfs2: split transactions in dio completion to avoid credit exhaustion
ocfs2: remove redundant l_next_free_rec check in __ocfs2_find_path()
ocfs2: validate extent block list fields during block read
ocfs2: remove empty extent list check in ocfs2_dx_dir_lookup_rec()
ocfs2: validate dx_root extent list fields during block read
ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY
ocfs2: handle invalid dinode in ocfs2_group_extend
.get_maintainer.ignore: add Askar
ocfs2: validate bg_list extent bounds in discontig groups
checkpatch: exclude forward declarations of const structs
tools/accounting: handle truncated taskstats netlink messages
taskstats: set version in TGID exit notifications
ocfs2/heartbeat: fix slot mapping rollback leaks on error paths
arm64,ppc64le/kdump: pass dm-crypt keys to kdump kernel
...
|
||
|
Xu Kuohai
|
d9ef13f727 |
bpf: Pass bpf_verifier_env to JIT
Pass bpf_verifier_env to bpf_int_jit_compile(). The follow-up patch will use env->insn_aux_data in the JIT stage to detect indirect jump targets. Since bpf_prog_select_runtime() can be called by cbpf and lib/test_bpf.c code without verifier, introduce helper __bpf_prog_select_runtime() to accept the env parameter. Remove the call to bpf_prog_select_runtime() in bpf_prog_load(), and switch to call __bpf_prog_select_runtime() in the verifier, with env variable passed. The original bpf_prog_select_runtime() is preserved for cbpf and lib/test_bpf.c, where env is NULL. Now all constants blinding calls are moved into the verifier, except the cbpf and lib/test_bpf.c cases. The instructions arrays are adjusted by bpf_patch_insn_data() function for normal cases, so there is no need to call adjust_insn_arrays() in bpf_jit_blind_constants(). Remove it. Reviewed-by: Anton Protopopov <a.s.protopopov@gmail.com> # v8 Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com> # v12 Acked-by: Hengqi Chen <hengqi.chen@gmail.com> # v14 Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Link: https://lore.kernel.org/r/20260416064341.151802-3-xukuohai@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Xu Kuohai
|
d3e945223e |
bpf: Move constants blinding out of arch-specific JITs
During the JIT stage, constants blinding rewrites instructions but only rewrites the private instruction copy of the JITed subprog, leaving the global env->prog->insnsi and env->insn_aux_data untouched. This causes a mismatch between subprog instructions and the global state, making it difficult to use the global data in the JIT. To avoid this mismatch, and given that all arch-specific JITs already support constants blinding, move it to the generic verifier code, and switch to rewrite the global env->prog->insnsi with the global states adjusted, as other rewrites in the verifier do. This removes the constants blinding calls in each JIT, which are largely duplicated code across architectures. Since constants blinding is only required for JIT, and there are two JIT entry functions, jit_subprogs() for BPF programs with multiple subprogs and bpf_prog_select_runtime() for programs with no subprogs, move the constants blinding invocation into these two functions. In the verifier path, bpf_patch_insn_data() is used to keep global verifier auxiliary data in sync with patched instructions. A key question is whether this global auxiliary data should be restored on the failure path. Besides instructions, bpf_patch_insn_data() adjusts: - prog->aux->poke_tab - env->insn_array_maps - env->subprog_info - env->insn_aux_data For prog->aux->poke_tab, it is only used by JIT or only meaningful after JIT succeeds, so it does not need to be restored on the failure path. For env->insn_array_maps, when JIT fails, programs using insn arrays are rejected by bpf_insn_array_ready() due to missing JIT addresses. Hence, env->insn_array_maps is only meaningful for JIT and does not need to be restored. For subprog_info, if jit_subprogs fails and CONFIG_BPF_JIT_ALWAYS_ON is not enabled, kernel falls back to interpreter. In this case, env->subprog_info is used to determine subprogram stack depth. So it must be restored on failure. For env->insn_aux_data, it is freed by clear_insn_aux_data() at the end of bpf_check(). Before freeing, clear_insn_aux_data() loops over env->insn_aux_data to release jump targets recorded in it. The loop uses env->prog->len as the array length, but this length no longer matches the actual size of the adjusted env->insn_aux_data array after constants blinding. To address it, a simple approach is to keep insn_aux_data as adjusted after failure, since it will be freed shortly, and record its actual size for the loop in clear_insn_aux_data(). But since clear_insn_aux_data() uses the same index to loop over both env->prog->insnsi and env->insn_aux_data, this approach results in incorrect index for the insnsi array. So an alternative approach is adopted: clone the original env->insn_aux_data before blinding and restore it after failure, similar to env->prog. For classic BPF programs, constants blinding works as before since it is still invoked from bpf_prog_select_runtime(). Reviewed-by: Anton Protopopov <a.s.protopopov@gmail.com> # v8 Reviewed-by: Hari Bathini <hbathini@linux.ibm.com> # powerpc jit Reviewed-by: Pu Lehui <pulehui@huawei.com> # riscv jit Acked-by: Hengqi Chen <hengqi.chen@gmail.com> # loongarch jit Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Link: https://lore.kernel.org/r/20260416064341.151802-2-xukuohai@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
|
Linus Torvalds
|
40286d6379 |
pci-v7.1-changes
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Merge tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Allow TLP Processing Hints to be enabled for RCiEPs (George Abraham
P)
- Enable AtomicOps only if we know the Root Port supports them (Gerd
Bayer)
- Don't enable AtomicOps for RCiEPs since none of them need Atomic
Ops and we can't tell whether the Root Complex would support them
(Gerd Bayer)
- Leave Precision Time Measurement disabled until a driver enables it
to avoid PCIe errors (Mika Westerberg)
- Make pci_set_vga_state() fail if bridge doesn't support VGA
routing, i.e., PCI_BRIDGE_CTL_VGA is not writable, and return
errors to vga_get() callers including userspace via
/dev/vga_arbiter (Simon Richter)
- Validate max-link-speed from DT in j721e, brcmstb, mediatek-gen3,
rzg3s drivers (where the actual controller constraints are known),
and remove validation from the generic OF DT accessor (Hans Zhang)
- Remove pc110pad driver (no longer useful after 486 CPU support
removed) and no_pci_devices() (pc110pad was the last user) (Dmitry
Torokhov, Heiner Kallweit)
Resource management:
- Prevent assigning space to unimplemented bridge windows; previously
we mistakenly assumed prefetchable window existed and assigned
space and put a BAR there (Ahmed Naseef)
- Avoid shrinking bridge windows to fit in the initial Root Port
window; fixes one problem with devices with large BARs connected
via switches, e.g., Thunderbolt (Ilpo Järvinen)
- Pass full extent of empty space, not just the aligned space, to
resource_alignf callback so free space before the requested
alignment can be used (Ilpo Järvinen)
- Place small resources before larger ones for better utilization of
address space (Ilpo Järvinen)
- Fix alignment calculation for resource size larger than align,
e.g., bridge windows larger than the 1MB required alignment (Ilpo
Järvinen)
Reset:
- Update slot handling so all ARI functions are treated as being in
the same slot. They're all reset by Secondary Bus Reset, but
previously drivers of ARI functions that appeared to be on a
non-zero device weren't notified and fatal hardware errors could
result (Keith Busch)
- Make sysfs reset_subordinate hotplug safe to avoid spurious hotplug
events (Keith Busch)
- Hide Secondary Bus Reset ('bus') from sysfs reset_methods if masked
by CXL because it has no effect (Vidya Sagar)
- Avoid FLR for AMD NPU device, where it causes the device to hang
(Lizhi Hou)
Error handling:
- Clear only error bits in PCIe Device Status to avoid accidentally
clearing Emergency Power Reduction Detected (Shuai Xue)
- Check for AER errors even in devices without drivers (Lukas Wunner)
- Initialize ratelimit info so DPC and EDR paths log AER error
information (Kuppuswamy Sathyanarayanan)
Power control:
- Add UPD720201/UPD720202 USB 3.0 xHCI Host Controller .compatible so
generic pwrctrl driver can control it (Neil Armstrong)
Hotplug:
- Set LED_HW_PLUGGABLE for NPEM hotplug-capable ports so LED core
doesn't complain when setting brightness fails because the endpoint
is gone (Richard Cheng)
Peer-to-peer DMA:
- Allow wildcards in list of host bridges that support peer-to-peer
DMA between hierarchy domains and add all Google SoCs (Jacob
Moroni)
Endpoint framework:
- Advertise dynamic inbound mapping support in pci-epf-test and
update host pci_endpoint_test to skip doorbell testing if not
advertised by endpoint (Koichiro Den)
- Return 0, not remaining timeout, when MHI eDMA ops complete so
mhi_ep_ring_add_element() doesn't interpret non-zero as failure
(Daniel Hodges)
- Remove vntb and ntb duplicate resource teardown that leads to oops
when .allow_link() fails or .drop_link() is called (Koichiro Den)
- Disable vntb delayed work before clearing BAR mappings and
doorbells to avoid oops caused by doing the work after resources
have been torn down (Koichiro Den)
- Add a way to describe reserved subregions within BARs, e.g.,
platform-owned fixed register windows, and use it for the RK3588
BAR4 DMA ctrl window (Koichiro Den)
- Add BAR_DISABLED for BARs that will never be available to an EPF
driver, and change some BAR_RESERVED annotations to BAR_DISABLED
(Niklas Cassel)
- Add NTB .get_dma_dev() callback for cases where DMA API requires a
different device, e.g., vNTB devices (Koichiro Den)
- Add reserved region types for MSI-X Table and PBA so Endpoint
controllers can them as describe hardware-owned regions in a
BAR_RESERVED BAR (Manikanta Maddireddy)
- Make Tegra194/234 BAR0 programmable and remove 1MB size limit
(Manikanta Maddireddy)
- Expose Tegra BAR2 (MSI-X) and BAR4 (DMA) as 64-bit BAR_RESERVED
(Manikanta Maddireddy)
- Add Tegra194 and Tegra234 device table entries to pci_endpoint_test
(Manikanta Maddireddy)
- Skip the BAR subrange selftest if there are not enough inbound
window resources to run the test (Christian Bruel)
New native PCIe controller drivers:
- Add DT binding and driver for Andes QiLai SoC PCIe host controller
(Randolph Lin)
- Add DT binding and driver for ESWIN PCIe Root Complex (Senchuan
Zhang)
Baikal T-1 PCIe controller driver:
- Remove driver since it never quite became usable (Andy Shevchenko)
Cadence PCIe controller driver:
- Implement byte/word config reads with dword (32-bit) reads because
some Cadence controllers don't support sub-dword accesses (Aksh
Garg)
CIX Sky1 PCIe controller driver:
- Add 'power-domains' to DT binding for SCMI power domain (Gary Yang)
Freescale i.MX6 PCIe controller driver:
- Add i.MX94 and i.MX943 to fsl,imx6q-pcie-ep DT binding (Richard
Zhu)
- Delay instead of polling for L2/L3 Ready after PME_Turn_off when
suspending i.MX6SX because LTSSM registers are inaccessible
(Richard Zhu)
- Separate PERST# assertion (for resetting endpoints) from core reset
(for resetting the RC itself) to prepare for new DTs with PERST#
GPIO in per-Root Port nodes (Sherry Sun)
- Retain Root Port MSI capability on i.MX7D, i.MX8MM, and i.MX8MQ so
MSI from downstream devices will work (Richard Zhu)
- Fix i.MX95 reference clock source selection when internal refclk is
used (Franz Schnyder)
Freescale Layerscape PCIe controller driver:
- Allow building as a removable module (Sascha Hauer)
MediaTek PCIe Gen3 controller driver:
- Use dev_err_probe() to simplify error paths and make deferred probe
messages visible in /sys/kernel/debug/devices_deferred (Chen-Yu
Tsai)
- Power off device if setup fails (Chen-Yu Tsai)
- Integrate new pwrctrl API to enable power control for WiFi/BT
adapters on mainboard or in PCIe or M.2 slots (Chen-Yu Tsai)
NVIDIA Tegra194 PCIe controller driver:
- Poll less aggressively and non-atomically for PME_TO_Ack during
transition to L2 (Vidya Sagar)
- Disable LTSSM after transition to Detect on surprise link down to
stop toggling between Polling and Detect (Manikanta Maddireddy)
- Don't force the device into the D0 state before L2 when suspending
or shutting down the controller (Vidya Sagar)
- Disable PERST# IRQ only in Endpoint mode because it's not
registered in Root Port mode (Manikanta Maddireddy)
- Handle 'nvidia,refclk-select' as optional (Vidya Sagar)
- Disable direct speed change in Endpoint mode so link speed change
is controlled by the host (Vidya Sagar)
- Set LTR values before link up to avoid bogus LTR messages with 0
latency (Vidya Sagar)
- Allow system suspend when the Endpoint link is down (Vidya Sagar)
- Use DWC IP core version, not Tegra custom values, to avoid DWC core
version check warnings (Manikanta Maddireddy)
- Apply ECRC workaround to devices based on DesignWare 5.00a as well
as 4.90a (Manikanta Maddireddy)
- Disable PM Substate L1.2 in Endpoint mode to work around Tegra234
erratum (Vidya Sagar)
- Delay post-PERST# cleanup until core is powered on to avoid CBB
timeout (Manikanta Maddireddy)
- Assert CLKREQ# so switches that forward it to their downstream side
can bring up those links successfully (Vidya Sagar)
- Calibrate pipe to UPHY for Endpoint mode to reset stale PLL state
from any previous bad link state (Vidya Sagar)
- Remove IRQF_ONESHOT flag from Endpoint interrupt registration so
DMA driver and Endpoint controller driver can share the interrupt
line (Vidya Sagar)
- Enable DMA interrupt to support DMA in both Root Port and Endpoint
modes (Vidya Sagar)
- Enable hardware link retraining after link goes down in Endpoint
mode (Vidya Sagar)
- Add DT binding and driver support for core clock monitoring (Vidya
Sagar)
Qualcomm PCIe controller driver:
- Advertise 'Hot-Plug Capable' and set 'No Command Completed Support'
since Qcom Root Ports support hotplug events like DL_Up/Down and
can accept writes to Slot Control without delays between writes
(Krishna Chaitanya Chundru)
Renesas R-Car PCIe controller driver:
- Mark Endpoint BAR0 and BAR2 as Resizable (Koichiro Den)
- Reduce EPC BAR alignment requirement to 4K (Koichiro Den)
Renesas RZ/G3S PCIe controller driver:
- Add RZ/G3E to DT binding and to driver (John Madieu)
- Assert (not deassert) resets in probe error path (John Madieu)
- Assert resets in suspend path in reverse order they were deasserted
during probe (John Madieu)
- Rework inbound window algorithm to prevent mapping more than
intended region and enforce alignment on size, to prepare for
RZ/G3E support (John Madieu)
Rockchip DesignWare PCIe controller driver:
- Add tracepoints for PCIe controller LTSSM transitions and link rate
changes (Shawn Lin)
- Trace LTSSM events collected by the dw-rockchip debug FIFO (Shawn
Lin)
SOPHGO PCIe controller driver:
- Disable ASPM L0s and L1 on Sophgo 2042 PCIe Root Ports that
advertise support for them (Yao Zi)
Synopsys DesignWare PCIe controller driver:
- Continue with system suspend even if an Endpoint doesn't respond
with PME_TO_Ack message (Manivannan Sadhasivam)
- Set Endpoint MSI-X Table Size in the correct function of a
multi-function device when configuring MSI-X, not in Function 0
(Aksh Garg)
- Set Max Link Width and Max Link Speed for all functions of a
multi-function device, not just Function 0 (Aksh Garg)
- Expose PCIe event counters in groups 5-7 in debugfs (Hans Zhang)
Miscellaneous:
- Warn only once about invalid ACS kernel parameter format (Richard
Cheng)
- Suppress FW_BUG warning when writing sysfs 'numa_node' with the
current value (Li RongQing)
- Drop redundant 'depends on PCI' from Kconfig (Julian Braha)"
* tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (165 commits)
PCI/P2PDMA: Add Google SoCs to the P2P DMA host bridge list
PCI/P2PDMA: Allow wildcard Device IDs in host bridge list
PCI: sg2042: Avoid L0s and L1 on Sophgo 2042 PCIe Root Ports
PCI: cadence: Add flags for disabling ASPM capability for broken Root Ports
PCI: tegra194: Add core monitor clock support
dt-bindings: PCI: tegra194: Add monitor clock support
PCI: tegra194: Enable hardware hot reset mode in Endpoint mode
PCI: tegra194: Enable DMA interrupt
PCI: tegra194: Remove IRQF_ONESHOT flag during Endpoint interrupt registration
PCI: tegra194: Calibrate pipe to UPHY for Endpoint mode
PCI: tegra194: Assert CLKREQ# explicitly by default
PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on
PCI: tegra194: Disable L1.2 capability of Tegra234 EP
PCI: dwc: Apply ECRC workaround to DesignWare 5.00a as well
PCI: tegra194: Use DWC IP core version
PCI: tegra194: Free up Endpoint resources during remove()
PCI: tegra194: Allow system suspend when the Endpoint link is not up
PCI: tegra194: Set LTR message request before PCIe link up in Endpoint mode
PCI: tegra194: Disable direct speed change for Endpoint mode
PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select"
...
|
||
|
Linus Torvalds
|
334fbe734e |
mm.git review status for linus..mm-stable
Everything: Total patches: 368 Reviews/patch: 1.56 Reviewed rate: 74% Excluding DAMON: Total patches: 316 Reviews/patch: 1.77 Reviewed rate: 81% Excluding DAMON and zram: Total patches: 306 Reviews/patch: 1.81 Reviewed rate: 82% Excluding DAMON, zram and maple_tree: Total patches: 276 Reviews/patch: 2.01 Reviewed rate: 91% Significant patch series in this merge: - The 30 patch series "maple_tree: Replace big node with maple copy" from Liam Howlett is mainly prepararatory work for ongoing development but it does reduce stack usage and is an improvement. - The 12 patch series "mm, swap: swap table phase III: remove swap_map" from Kairui Song offers memory savings by removing the static swap_map. It also yields some CPU savings and implements several cleanups. - The 2 patch series "mm: memfd_luo: preserve file seals" from Pratyush Yadav adds file seal preservation to LUO's memfd code. - The 2 patch series "mm: zswap: add per-memcg stat for incompressible pages" from Jiayuan Chen adds additional userspace stats reportng to zswap. - The 4 patch series "arch, mm: consolidate empty_zero_page" from Mike Rapoport implements some cleanups for our handling of ZERO_PAGE() and zero_pfn. - The 2 patch series "mm/kmemleak: Improve scan_should_stop() implementation" from Zhongqiu Han provides an robustness improvement and some cleanups in the kmemleak code. - The 4 patch series "Improve khugepaged scan logic" from Vernon Yang "improves the khugepaged scan logic and reduces CPU consumption by prioritizing scanning tasks that access memory frequently". - The 2 patch series "Make KHO Stateless" from Jason Miu simplifies Kexec Handover by "transitioning KHO from an xarray-based metadata tracking system with serialization to a radix tree data structure that can be passed directly to the next kernel" - The 3 patch series "mm: vmscan: add PID and cgroup ID to vmscan tracepoints" from Thomas Ballasi and Steven Rostedt enhances vmscan's tracepointing. - The 5 patch series "mm: arch/shstk: Common shadow stack mapping helper and VM_NOHUGEPAGE" from Catalin Marinas is a cleanup for the shadow stack code: remove per-arch code in favour of a generic implementation. - The 2 patch series "Fix KASAN support for KHO restored vmalloc regions" from Pasha Tatashin fixes a WARN() which can be emitted the KHO restores a vmalloc area. - The 4 patch series "mm: Remove stray references to pagevec" from Tal Zussman provides several cleanups, mainly udpating references to "struct pagevec", which became folio_batch three years ago. - The 17 patch series "mm: Eliminate fake head pages from vmemmap optimization" from Kiryl Shutsemau simplifies the HugeTLB vmemmap optimization (HVO) by changing how tail pages encode their relationship to the head page. - The 2 patch series "mm/damon/core: improve DAMOS quota efficiency for core layer filters" from SeongJae Park improves two problematic behaviors of DAMOS that makes it less efficient when core layer filters are used. - The 3 patch series "mm/damon: strictly respect min_nr_regions" from SeongJae Park improves DAMON usability by extending the treatment of the min_nr_regions user-settable parameter. - The 3 patch series "mm/page_alloc: pcp locking cleanup" from Vlastimil Babka is a proper fix for a previously hotfixed SMP=n issue. Code simplifications and cleanups ennsed. - The 16 patch series "mm: cleanups around unmapping / zapping" from David Hildenbrand implements "a bunch of cleanups around unmapping and zapping. Mostly simplifications, code movements, documentation and renaming of zapping functions". - The 6 patch series "support batched checking of the young flag for MGLRU" from Baolin Wang supports batched checking of the young flag for MGLRU. It's part cleanups; one benchmark shows large performance benefits for arm64. - The 5 patch series "memcg: obj stock and slab stat caching cleanups" from Johannes Weiner provides memcg cleanup and robustness improvements. - The 5 patch series "Allow order zero pages in page reporting" from Yuvraj Sakshith enhances page_reporting's free page reporting - it is presently and undesirably order-0 pages when reporting free memory. - The 6 patch series "mm: vma flag tweaks" from Lorenzo Stoakes is cleanup work following from the recent conversion of the VMA flags to a bitmap. - The 10 patch series "mm/damon: add optional debugging-purpose sanity checks" from SeongJae Park adds some more developer-facing debug checks into DAMON core. - The 2 patch series "mm/damon: test and document power-of-2 min_region_sz requirement" from SeongJae Park adds an additional DAMON kunit test and makes some adjustments to the addr_unit parameter handling. - The 3 patch series "mm/damon/core: make passed_sample_intervals comparisons overflow-safe" from SeongJae Park fixes a hard-to-hit time overflow issue in DAMON core. - The 7 patch series "mm/damon: improve/fixup/update ratio calculation, test and documentation" from SeongJae Park is a "batch of misc/minor improvements and fixups" for DAMON. - The 4 patch series "mm: move vma_(kernel|mmu)_pagesize() out of hugetlb.c" from David Hildenbrand fixes a possible issue with dax-device when CONFIG_HUGETLB=n. Some code movement was required. - The 6 patch series "zram: recompression cleanups and tweaks" from Sergey Senozhatsky provides "a somewhat random mix of fixups, recompression cleanups and improvements" in the zram code. - The 11 patch series "mm/damon: support multiple goal-based quota tuning algorithms" from SeongJae Park extend DAMOS quotas goal auto-tuning to support multiple tuning algorithms that users can select. - The 4 patch series "mm: thp: reduce unnecessary start_stop_khugepaged()" from Breno Leitao fixes the khugpaged sysfs handling so we no longer spam the logs with reams of junk when starting/stopping khugepaged. - The 3 patch series "mm: improve map count checks" from Lorenzo Stoakes provides some cleanups and slight fixes in the mremap, mmap and vma code. - The 5 patch series "mm/damon: support addr_unit on default monitoring targets for modules" from SeongJae Park extends the use of DAMON core's addr_unit tunable. - The 5 patch series "mm: khugepaged cleanups and mTHP prerequisites" from Nico Pache provides cleanups in the khugepaged and is a base for Nico's planned khugepaged mTHP support. - The 15 patch series "mm: memory hot(un)plug and SPARSEMEM cleanups" from David Hildenbrand implements code movement and cleanups in the memhotplug and sparsemem code. - The 2 patch series "mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE and cleanup CONFIG_MIGRATION" from David Hildenbrand rationalizes some memhotplug Kconfig support. - The 6 patch series "change young flag check functions to return bool" from Baolin Wang is "a cleanup patchset to change all young flag check functions to return bool". - The 3 patch series "mm/damon/sysfs: fix memory leak and NULL dereference issues" from Josh Law and SeongJae Park fixes a few potential DAMON bugs. - The 25 patch series "mm/vma: convert vm_flags_t to vma_flags_t in vma code" from "converts a lot of the existing use of the legacy vm_flags_t data type to the new vma_flags_t type which replaces it". Mainly in the vma code. - The 21 patch series "mm: expand mmap_prepare functionality and usage" from Lorenzo Stoakes "expands the mmap_prepare functionality, which is intended to replace the deprecated f_op->mmap hook which has been the source of bugs and security issues for some time". Cleanups, documentation, extension of mmap_prepare into filesystem drivers. - The 13 patch series "mm/huge_memory: refactor zap_huge_pmd()" from Lorenzo Stoakes simplifies and cleans up zap_huge_pmd(). Additional cleanups around vm_normal_folio_pmd() and the softleaf functionality are performed. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCad3HDQAKCRDdBJ7gKXxA jrUQAPwNhPk5nPSxnyxjAeQtOBHqgCdnICeEismLajPKd9aYRgEA0s2XAu3tSUYi GrBnWImHG3s4ePQxVcPCegWTsOUrXgQ= =1Q7o -----END PGP SIGNATURE----- Merge tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - "maple_tree: Replace big node with maple copy" (Liam Howlett) Mainly prepararatory work for ongoing development but it does reduce stack usage and is an improvement. - "mm, swap: swap table phase III: remove swap_map" (Kairui Song) Offers memory savings by removing the static swap_map. It also yields some CPU savings and implements several cleanups. - "mm: memfd_luo: preserve file seals" (Pratyush Yadav) File seal preservation to LUO's memfd code - "mm: zswap: add per-memcg stat for incompressible pages" (Jiayuan Chen) Additional userspace stats reportng to zswap - "arch, mm: consolidate empty_zero_page" (Mike Rapoport) Some cleanups for our handling of ZERO_PAGE() and zero_pfn - "mm/kmemleak: Improve scan_should_stop() implementation" (Zhongqiu Han) A robustness improvement and some cleanups in the kmemleak code - "Improve khugepaged scan logic" (Vernon Yang) Improve khugepaged scan logic and reduce CPU consumption by prioritizing scanning tasks that access memory frequently - "Make KHO Stateless" (Jason Miu) Simplify Kexec Handover by transitioning KHO from an xarray-based metadata tracking system with serialization to a radix tree data structure that can be passed directly to the next kernel - "mm: vmscan: add PID and cgroup ID to vmscan tracepoints" (Thomas Ballasi and Steven Rostedt) Enhance vmscan's tracepointing - "mm: arch/shstk: Common shadow stack mapping helper and VM_NOHUGEPAGE" (Catalin Marinas) Cleanup for the shadow stack code: remove per-arch code in favour of a generic implementation - "Fix KASAN support for KHO restored vmalloc regions" (Pasha Tatashin) Fix a WARN() which can be emitted the KHO restores a vmalloc area - "mm: Remove stray references to pagevec" (Tal Zussman) Several cleanups, mainly udpating references to "struct pagevec", which became folio_batch three years ago - "mm: Eliminate fake head pages from vmemmap optimization" (Kiryl Shutsemau) Simplify the HugeTLB vmemmap optimization (HVO) by changing how tail pages encode their relationship to the head page - "mm/damon/core: improve DAMOS quota efficiency for core layer filters" (SeongJae Park) Improve two problematic behaviors of DAMOS that makes it less efficient when core layer filters are used - "mm/damon: strictly respect min_nr_regions" (SeongJae Park) Improve DAMON usability by extending the treatment of the min_nr_regions user-settable parameter - "mm/page_alloc: pcp locking cleanup" (Vlastimil Babka) The proper fix for a previously hotfixed SMP=n issue. Code simplifications and cleanups ensued - "mm: cleanups around unmapping / zapping" (David Hildenbrand) A bunch of cleanups around unmapping and zapping. Mostly simplifications, code movements, documentation and renaming of zapping functions - "support batched checking of the young flag for MGLRU" (Baolin Wang) Batched checking of the young flag for MGLRU. It's part cleanups; one benchmark shows large performance benefits for arm64 - "memcg: obj stock and slab stat caching cleanups" (Johannes Weiner) memcg cleanup and robustness improvements - "Allow order zero pages in page reporting" (Yuvraj Sakshith) Enhance free page reporting - it is presently and undesirably order-0 pages when reporting free memory. - "mm: vma flag tweaks" (Lorenzo Stoakes) Cleanup work following from the recent conversion of the VMA flags to a bitmap - "mm/damon: add optional debugging-purpose sanity checks" (SeongJae Park) Add some more developer-facing debug checks into DAMON core - "mm/damon: test and document power-of-2 min_region_sz requirement" (SeongJae Park) An additional DAMON kunit test and makes some adjustments to the addr_unit parameter handling - "mm/damon/core: make passed_sample_intervals comparisons overflow-safe" (SeongJae Park) Fix a hard-to-hit time overflow issue in DAMON core - "mm/damon: improve/fixup/update ratio calculation, test and documentation" (SeongJae Park) A batch of misc/minor improvements and fixups for DAMON - "mm: move vma_(kernel|mmu)_pagesize() out of hugetlb.c" (David Hildenbrand) Fix a possible issue with dax-device when CONFIG_HUGETLB=n. Some code movement was required. - "zram: recompression cleanups and tweaks" (Sergey Senozhatsky) A somewhat random mix of fixups, recompression cleanups and improvements in the zram code - "mm/damon: support multiple goal-based quota tuning algorithms" (SeongJae Park) Extend DAMOS quotas goal auto-tuning to support multiple tuning algorithms that users can select - "mm: thp: reduce unnecessary start_stop_khugepaged()" (Breno Leitao) Fix the khugpaged sysfs handling so we no longer spam the logs with reams of junk when starting/stopping khugepaged - "mm: improve map count checks" (Lorenzo Stoakes) Provide some cleanups and slight fixes in the mremap, mmap and vma code - "mm/damon: support addr_unit on default monitoring targets for modules" (SeongJae Park) Extend the use of DAMON core's addr_unit tunable - "mm: khugepaged cleanups and mTHP prerequisites" (Nico Pache) Cleanups to khugepaged and is a base for Nico's planned khugepaged mTHP support - "mm: memory hot(un)plug and SPARSEMEM cleanups" (David Hildenbrand) Code movement and cleanups in the memhotplug and sparsemem code - "mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE and cleanup CONFIG_MIGRATION" (David Hildenbrand) Rationalize some memhotplug Kconfig support - "change young flag check functions to return bool" (Baolin Wang) Cleanups to change all young flag check functions to return bool - "mm/damon/sysfs: fix memory leak and NULL dereference issues" (Josh Law and SeongJae Park) Fix a few potential DAMON bugs - "mm/vma: convert vm_flags_t to vma_flags_t in vma code" (Lorenzo Stoakes) Convert a lot of the existing use of the legacy vm_flags_t data type to the new vma_flags_t type which replaces it. Mainly in the vma code. - "mm: expand mmap_prepare functionality and usage" (Lorenzo Stoakes) Expand the mmap_prepare functionality, which is intended to replace the deprecated f_op->mmap hook which has been the source of bugs and security issues for some time. Cleanups, documentation, extension of mmap_prepare into filesystem drivers - "mm/huge_memory: refactor zap_huge_pmd()" (Lorenzo Stoakes) Simplify and clean up zap_huge_pmd(). Additional cleanups around vm_normal_folio_pmd() and the softleaf functionality are performed. * tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (369 commits) mm: fix deferred split queue races during migration mm/khugepaged: fix issue with tracking lock mm/huge_memory: add and use has_deposited_pgtable() mm/huge_memory: add and use normal_or_softleaf_folio_pmd() mm: add softleaf_is_valid_pmd_entry(), pmd_to_softleaf_folio() mm/huge_memory: separate out the folio part of zap_huge_pmd() mm/huge_memory: use mm instead of tlb->mm mm/huge_memory: remove unnecessary sanity checks mm/huge_memory: deduplicate zap deposited table call mm/huge_memory: remove unnecessary VM_BUG_ON_PAGE() mm/huge_memory: add a common exit path to zap_huge_pmd() mm/huge_memory: handle buggy PMD entry in zap_huge_pmd() mm/huge_memory: have zap_huge_pmd return a boolean, add kdoc mm/huge: avoid big else branch in zap_huge_pmd() mm/huge_memory: simplify vma_is_specal_huge() mm: on remap assert that input range within the proposed VMA mm: add mmap_action_map_kernel_pages[_full]() uio: replace deprecated mmap hook with mmap_prepare in uio_info drivers: hv: vmbus: replace deprecated mmap hook with mmap_prepare mm: allow handling of stacked mmap_prepare hooks in more drivers ... |