<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/firmware, branch v7.1-rc7</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge tag 'soc-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc</title>
<updated>2026-06-02T17:54:11+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-06-02T17:54:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=ba3e43a9e601636f5edb54e259a74f96ca3b8fd8'/>
<id>ba3e43a9e601636f5edb54e259a74f96ca3b8fd8</id>
<content type='text'>
Pull SoC fixes from Arnd Bergmann:
 "Following the previous set of fixes, this addresses another
  significant number of small issues found in firmware drivers (tee,
  optee, qcomtee, qcom ice, exynos acpm) drivers through various tools.

  This is about error handling, resource leaks, concurrency and a
  use-after-free bug.

  The fixes for the Qualcomm ICE driver also introduce interface changes
  in the UFS and MMC drivers using it.

  Outside of firmware drivers, there are a few fixes across the tree:

   - Minor driver code mistakes in the Atmel EBI memory controller, the
     i.MX soc ID driver and socfpga boot logic

   - A defconfig change to avoid a boot time regression on multiple
     qualcomm boards

   - Device tree fixes for qualcomm, at91 and gemini, addressing mostly
     minor configuration mistakes"

* tag 'soc-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (28 commits)
  firmware: samsung: acpm: Fix infinite loop on sequence number exhaustion
  firmware: samsung: acpm: Fix missing LKMM barriers in sequence allocator
  firmware: samsung: acpm: Fix false timeouts and Use-After-Free in polling
  ARM: dts: gemini: Fix partition offsets
  ARM: socfpga: Fix OF node refcount leak in SMP setup
  soc: qcom: ice: Fix the error code when 'qcom,ice' property is not found
  arm64: dts: qcom: eliza: Add power-domain and iface clk for ice node
  arm64: dts: qcom: milos: Add power-domain and iface clk for ice node
  tee: qcomtee: add missing va_end in early return qcomtee_object_user_init()
  tee: fix params_from_user() error path in tee_ioctl_supp_recv
  tee: shm: fix shm leak in register_shm_helper()
  tee: fix tee_ioctl_object_invoke_arg padding
  arm64: defconfig: Enable PCI M.2 power sequencing driver
  scsi: ufs: ufs-qcom: Remove NULL check from devm_of_qcom_ice_get()
  mmc: sdhci-msm: Remove NULL check from devm_of_qcom_ice_get()
  soc: qcom: ice: Return proper error codes from devm_of_qcom_ice_get() instead of NULL
  soc: qcom: ice: Return -ENODEV if the ICE platform device is not found
  soc: qcom: ice: Fix race between qcom_ice_probe() and of_qcom_ice_get()
  ARM: dts: microchip: sam9x7: fix GMAC clock configuration
  firmware: samsung: acpm: Fix mailbox channel leak on probe error
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull SoC fixes from Arnd Bergmann:
 "Following the previous set of fixes, this addresses another
  significant number of small issues found in firmware drivers (tee,
  optee, qcomtee, qcom ice, exynos acpm) drivers through various tools.

  This is about error handling, resource leaks, concurrency and a
  use-after-free bug.

  The fixes for the Qualcomm ICE driver also introduce interface changes
  in the UFS and MMC drivers using it.

  Outside of firmware drivers, there are a few fixes across the tree:

   - Minor driver code mistakes in the Atmel EBI memory controller, the
     i.MX soc ID driver and socfpga boot logic

   - A defconfig change to avoid a boot time regression on multiple
     qualcomm boards

   - Device tree fixes for qualcomm, at91 and gemini, addressing mostly
     minor configuration mistakes"

* tag 'soc-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (28 commits)
  firmware: samsung: acpm: Fix infinite loop on sequence number exhaustion
  firmware: samsung: acpm: Fix missing LKMM barriers in sequence allocator
  firmware: samsung: acpm: Fix false timeouts and Use-After-Free in polling
  ARM: dts: gemini: Fix partition offsets
  ARM: socfpga: Fix OF node refcount leak in SMP setup
  soc: qcom: ice: Fix the error code when 'qcom,ice' property is not found
  arm64: dts: qcom: eliza: Add power-domain and iface clk for ice node
  arm64: dts: qcom: milos: Add power-domain and iface clk for ice node
  tee: qcomtee: add missing va_end in early return qcomtee_object_user_init()
  tee: fix params_from_user() error path in tee_ioctl_supp_recv
  tee: shm: fix shm leak in register_shm_helper()
  tee: fix tee_ioctl_object_invoke_arg padding
  arm64: defconfig: Enable PCI M.2 power sequencing driver
  scsi: ufs: ufs-qcom: Remove NULL check from devm_of_qcom_ice_get()
  mmc: sdhci-msm: Remove NULL check from devm_of_qcom_ice_get()
  soc: qcom: ice: Return proper error codes from devm_of_qcom_ice_get() instead of NULL
  soc: qcom: ice: Return -ENODEV if the ICE platform device is not found
  soc: qcom: ice: Fix race between qcom_ice_probe() and of_qcom_ice_get()
  ARM: dts: microchip: sam9x7: fix GMAC clock configuration
  firmware: samsung: acpm: Fix mailbox channel leak on probe error
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>firmware: samsung: acpm: Fix infinite loop on sequence number exhaustion</title>
<updated>2026-05-29T12:11:23+00:00</updated>
<author>
<name>Tudor Ambarus</name>
<email>tudor.ambarus@linaro.org</email>
</author>
<published>2026-05-05T13:13:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=7fe40c32a33905302341797b5d12c541729dd08d'/>
<id>7fe40c32a33905302341797b5d12c541729dd08d</id>
<content type='text'>
Sashiko identified a possible infinite loop [1].

ACPM IPC sequence numbers are tracked via a 64-bit bitmap. Previously,
acpm_prepare_xfer() used a do...while loop to search for a free
sequence number.

If all 63 available sequence numbers are leaked due to transient
hardware timeouts or mailbox failures, the bitmap becomes full.
The next call to acpm_prepare_xfer() would enter an infinite loop.

Fix this by utilizing the kernel's optimized bitmap search functions
(find_next_zero_bit / find_first_zero_bit). If the pool is completely
exhausted, log the failure and return -EBUSY to allow the kernel to
fail gracefully instead of hanging.

Furthermore, drop the allocation loop entirely. Because
acpm_prepare_xfer() is strictly called under the 'tx_lock' mutex,
sequence number allocations are perfectly serialized. If
find_next_zero_bit() locates a free bit, a single
test_and_set_bit_lock() is mathematically guaranteed to succeed.

To enforce this locking invariant, wrap the allocation in a
WARN_ON_ONCE. If the atomic set fails, it indicates the driver's
mutex serialization is fundamentally broken. The warning generates a
stack trace for debugging, while returning -EIO immediately aborts the
transfer to prevent silent payload corruption.

Cc: stable@vger.kernel.org
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Closes: https://sashiko.dev/#/patchset/20260420-acpm-tmu-v3-0-3dc8e93f0b26%40linaro.org [1]
Signed-off-by: Tudor Ambarus &lt;tudor.ambarus@linaro.org&gt;
Link: https://patch.msgid.link/20260505-acpm-fixes-sashiko-reports-v5-7-43b5ee7f1674@linaro.org
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Sashiko identified a possible infinite loop [1].

ACPM IPC sequence numbers are tracked via a 64-bit bitmap. Previously,
acpm_prepare_xfer() used a do...while loop to search for a free
sequence number.

If all 63 available sequence numbers are leaked due to transient
hardware timeouts or mailbox failures, the bitmap becomes full.
The next call to acpm_prepare_xfer() would enter an infinite loop.

Fix this by utilizing the kernel's optimized bitmap search functions
(find_next_zero_bit / find_first_zero_bit). If the pool is completely
exhausted, log the failure and return -EBUSY to allow the kernel to
fail gracefully instead of hanging.

Furthermore, drop the allocation loop entirely. Because
acpm_prepare_xfer() is strictly called under the 'tx_lock' mutex,
sequence number allocations are perfectly serialized. If
find_next_zero_bit() locates a free bit, a single
test_and_set_bit_lock() is mathematically guaranteed to succeed.

To enforce this locking invariant, wrap the allocation in a
WARN_ON_ONCE. If the atomic set fails, it indicates the driver's
mutex serialization is fundamentally broken. The warning generates a
stack trace for debugging, while returning -EIO immediately aborts the
transfer to prevent silent payload corruption.

Cc: stable@vger.kernel.org
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Closes: https://sashiko.dev/#/patchset/20260420-acpm-tmu-v3-0-3dc8e93f0b26%40linaro.org [1]
Signed-off-by: Tudor Ambarus &lt;tudor.ambarus@linaro.org&gt;
Link: https://patch.msgid.link/20260505-acpm-fixes-sashiko-reports-v5-7-43b5ee7f1674@linaro.org
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>firmware: samsung: acpm: Fix missing LKMM barriers in sequence allocator</title>
<updated>2026-05-29T12:11:22+00:00</updated>
<author>
<name>Tudor Ambarus</name>
<email>tudor.ambarus@linaro.org</email>
</author>
<published>2026-05-05T13:13:03+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=bf296f83a3ddab1ab875edc4e8862cb10553064f'/>
<id>bf296f83a3ddab1ab875edc4e8862cb10553064f</id>
<content type='text'>
Sashiko identified memory ordering races in [1].

The ACPM driver uses a globally shared 'bitmap_seqnum' to track
available sequence numbers. Even though threads now strictly free their
own sequence numbers, the allocation and freeing of these bits across
concurrent threads are effectively lockless operations and require
explicit LKMM memory barriers.

Previously, the driver used plain bitwise operators (test_bit, set_bit,
clear_bit), which lack ordering guarantees. This creates two race
conditions on weakly ordered architectures like ARM64:

1. Polling Release Violation: The polling thread copies its payload and
   calls clear_bit(). Without a release barrier, the CPU can reorder
   the memory operations, making the cleared bit globally visible
   before the payload reads have fully completed.
2. TX Acquire Violation: The TX thread loops on test_bit(), calls
   set_bit(), and then wipes the payload buffer via memset(). Without
   an acquire barrier, the CPU can speculatively execute the memset()
   before the bit is safely and formally claimed.

If these reorderings overlap, a new TX thread can claim the sequence
number and overwrite the buffer while the original polling thread is
still actively reading from it.

Fix this by upgrading the bitwise operators. Wrap the TX allocation in
test_and_set_bit_lock() to establish formal LKMM Acquire semantics, and
pair it with clear_bit_unlock() in the polling path to enforce Release
semantics.

Cc: stable@vger.kernel.org
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Closes: https://sashiko.dev/#/patchset/20260423-acpm-fixes-sashiko-reports-v1-0-2217b790925e%40linaro.org [1]
Signed-off-by: Tudor Ambarus &lt;tudor.ambarus@linaro.org&gt;
Link: https://patch.msgid.link/20260505-acpm-fixes-sashiko-reports-v5-6-43b5ee7f1674@linaro.org
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Sashiko identified memory ordering races in [1].

The ACPM driver uses a globally shared 'bitmap_seqnum' to track
available sequence numbers. Even though threads now strictly free their
own sequence numbers, the allocation and freeing of these bits across
concurrent threads are effectively lockless operations and require
explicit LKMM memory barriers.

Previously, the driver used plain bitwise operators (test_bit, set_bit,
clear_bit), which lack ordering guarantees. This creates two race
conditions on weakly ordered architectures like ARM64:

1. Polling Release Violation: The polling thread copies its payload and
   calls clear_bit(). Without a release barrier, the CPU can reorder
   the memory operations, making the cleared bit globally visible
   before the payload reads have fully completed.
2. TX Acquire Violation: The TX thread loops on test_bit(), calls
   set_bit(), and then wipes the payload buffer via memset(). Without
   an acquire barrier, the CPU can speculatively execute the memset()
   before the bit is safely and formally claimed.

If these reorderings overlap, a new TX thread can claim the sequence
number and overwrite the buffer while the original polling thread is
still actively reading from it.

Fix this by upgrading the bitwise operators. Wrap the TX allocation in
test_and_set_bit_lock() to establish formal LKMM Acquire semantics, and
pair it with clear_bit_unlock() in the polling path to enforce Release
semantics.

Cc: stable@vger.kernel.org
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Closes: https://sashiko.dev/#/patchset/20260423-acpm-fixes-sashiko-reports-v1-0-2217b790925e%40linaro.org [1]
Signed-off-by: Tudor Ambarus &lt;tudor.ambarus@linaro.org&gt;
Link: https://patch.msgid.link/20260505-acpm-fixes-sashiko-reports-v5-6-43b5ee7f1674@linaro.org
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>firmware: samsung: acpm: Fix false timeouts and Use-After-Free in polling</title>
<updated>2026-05-29T12:11:22+00:00</updated>
<author>
<name>Tudor Ambarus</name>
<email>tudor.ambarus@linaro.org</email>
</author>
<published>2026-05-05T13:13:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c889b146478885344a220dd468e5a08de088cbc5'/>
<id>c889b146478885344a220dd468e5a08de088cbc5</id>
<content type='text'>
Sashiko identified severe races in the polling state machine [1].

In the ACPM driver's polling mode, threads waited for responses by
monitoring the globally shared 'bitmap_seqnum'. This caused false
timeouts because if a thread processed its response and freed the
sequence number, a concurrent TX thread could immediately reallocate
it before the polling thread woke up.

Additionally, the driver suffered from a cross-thread Use-After-Free
(UAF) preemption race. Previously, acpm_get_rx() cleared the sequence
number of whichever RX message it drained from the hardware queue. This
meant Thread A could globally free Thread B's sequence slot while
Thread B was asleep. A new Thread C could then steal the slot,
overwrite the buffer, and leave Thread B to wake up to corrupted state
or a timeout.

Fix this by rewriting the polling state machine:
1. Decouple polling from the global allocator by introducing a per-slot
   'completed' flag, synchronized via smp_store_release() and
   smp_load_acquire().
2. Strip acpm_get_saved_rx() out of acpm_get_rx() to make it a pure
   queue-draining function. Introduce a 'native_match' boolean argument
   which evaluates to true only if the thread natively processed its
   own sequence number during the call. This explicitly informs the
   polling loop whether it must retrieve its payload from the
   cross-thread cache.
3. Centralize the cache fallback and sequence number free (clear_bit)
   inside the polling loop. Crucially, the free operation now strictly
   targets the thread's own TX sequence number (xfer-&gt;txd[0]), rather
   than the drained RX sequence number. This enforces strict ownership:
   a thread only ever frees its own allocated sequence slot, and only
   at the exact moment it completes its poll, eliminating the UAF
   window.

Furthermore, explicitly guard the 'native_match' assignment with an
if (rx_seqnum == tx_seqnum) check, even for zero-length (no payload)
responses. While an unguarded assignment wouldn't crash (because the
cache fallback acpm_get_saved_rx() safely returns early on zero-length
transfers) doing so would "lie" to the state machine. If a thread
drained the queue and found another thread's zero-length message,
setting native_match = true would falsely convince the polling loop
that it natively handled its own response. Maintaining a rigorous state
machine requires that native_match is only set when a thread explicitly
processes its own sequence number.

Cc: stable@vger.kernel.org
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Closes: https://sashiko.dev/#/patchset/20260429-acpm-fixes-sashiko-reports-v3-0-47cf74ab09ad%40linaro.org [1]
Signed-off-by: Tudor Ambarus &lt;tudor.ambarus@linaro.org&gt;
Link: https://patch.msgid.link/20260505-acpm-fixes-sashiko-reports-v5-5-43b5ee7f1674@linaro.org
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Sashiko identified severe races in the polling state machine [1].

In the ACPM driver's polling mode, threads waited for responses by
monitoring the globally shared 'bitmap_seqnum'. This caused false
timeouts because if a thread processed its response and freed the
sequence number, a concurrent TX thread could immediately reallocate
it before the polling thread woke up.

Additionally, the driver suffered from a cross-thread Use-After-Free
(UAF) preemption race. Previously, acpm_get_rx() cleared the sequence
number of whichever RX message it drained from the hardware queue. This
meant Thread A could globally free Thread B's sequence slot while
Thread B was asleep. A new Thread C could then steal the slot,
overwrite the buffer, and leave Thread B to wake up to corrupted state
or a timeout.

Fix this by rewriting the polling state machine:
1. Decouple polling from the global allocator by introducing a per-slot
   'completed' flag, synchronized via smp_store_release() and
   smp_load_acquire().
2. Strip acpm_get_saved_rx() out of acpm_get_rx() to make it a pure
   queue-draining function. Introduce a 'native_match' boolean argument
   which evaluates to true only if the thread natively processed its
   own sequence number during the call. This explicitly informs the
   polling loop whether it must retrieve its payload from the
   cross-thread cache.
3. Centralize the cache fallback and sequence number free (clear_bit)
   inside the polling loop. Crucially, the free operation now strictly
   targets the thread's own TX sequence number (xfer-&gt;txd[0]), rather
   than the drained RX sequence number. This enforces strict ownership:
   a thread only ever frees its own allocated sequence slot, and only
   at the exact moment it completes its poll, eliminating the UAF
   window.

Furthermore, explicitly guard the 'native_match' assignment with an
if (rx_seqnum == tx_seqnum) check, even for zero-length (no payload)
responses. While an unguarded assignment wouldn't crash (because the
cache fallback acpm_get_saved_rx() safely returns early on zero-length
transfers) doing so would "lie" to the state machine. If a thread
drained the queue and found another thread's zero-length message,
setting native_match = true would falsely convince the polling loop
that it natively handled its own response. Maintaining a rigorous state
machine requires that native_match is only set when a thread explicitly
processes its own sequence number.

Cc: stable@vger.kernel.org
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Closes: https://sashiko.dev/#/patchset/20260429-acpm-fixes-sashiko-reports-v3-0-47cf74ab09ad%40linaro.org [1]
Signed-off-by: Tudor Ambarus &lt;tudor.ambarus@linaro.org&gt;
Link: https://patch.msgid.link/20260505-acpm-fixes-sashiko-reports-v5-5-43b5ee7f1674@linaro.org
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'loongarch-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson</title>
<updated>2026-05-23T16:13:00+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-05-23T16:13:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=95e6d3ba0571330df866911da9dedd83e05417ca'/>
<id>95e6d3ba0571330df866911da9dedd83e05417ca</id>
<content type='text'>
Pull LoongArch fixes from Huacai Chen:
 "Rework KASLR to avoid initrd overlap, remove some unused code to avoid
  a build warning, fix some bugs in kprobes and KVM"

* tag 'loongarch-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: KVM: Move some variable declarations to paravirt.h
  LoongArch: kprobes: Fix handling of fatal unrecoverable recursions
  LoongArch: kprobes: Use larch_insn_text_copy() to patch instructions
  LoongArch: Remove unused code to avoid build warning
  LoongArch: Avoid initrd overlap during kernel relocation
  LoongArch: Skip relocation-time KASLR if already applied
  efi/loongarch: Randomize kernel preferred address for KASLR
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull LoongArch fixes from Huacai Chen:
 "Rework KASLR to avoid initrd overlap, remove some unused code to avoid
  a build warning, fix some bugs in kprobes and KVM"

* tag 'loongarch-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: KVM: Move some variable declarations to paravirt.h
  LoongArch: kprobes: Fix handling of fatal unrecoverable recursions
  LoongArch: kprobes: Use larch_insn_text_copy() to patch instructions
  LoongArch: Remove unused code to avoid build warning
  LoongArch: Avoid initrd overlap during kernel relocation
  LoongArch: Skip relocation-time KASLR if already applied
  efi/loongarch: Randomize kernel preferred address for KASLR
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'efi-fixes-for-v7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi</title>
<updated>2026-05-21T15:59:52+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-05-21T15:59:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=758c807bb943138f887d42d986b645e12446ba9c'/>
<id>758c807bb943138f887d42d986b645e12446ba9c</id>
<content type='text'>
Pull EFI fixes from Ard Biesheuvel:

 - Permit ACPI PRM runtime firmware calls when acpi_init() runs

 - Add another Lenovo Ideapad framebuffer quirk

 - Cosmetic tweak

* tag 'efi-fixes-for-v7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi: sysfb_efi: Extend quirk to cover IdeaPad Duet 3 10IGL5-LTE
  efi: efi.h: Remove extra semicolon
  efi: Allocate runtime workqueue before ACPI init
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull EFI fixes from Ard Biesheuvel:

 - Permit ACPI PRM runtime firmware calls when acpi_init() runs

 - Add another Lenovo Ideapad framebuffer quirk

 - Cosmetic tweak

* tag 'efi-fixes-for-v7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi: sysfb_efi: Extend quirk to cover IdeaPad Duet 3 10IGL5-LTE
  efi: efi.h: Remove extra semicolon
  efi: Allocate runtime workqueue before ACPI init
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'soc-fixes-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc</title>
<updated>2026-05-21T15:43:26+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-05-21T15:43:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=dd3802fc4f6b52201a93330d44981a66bd6ef883'/>
<id>dd3802fc4f6b52201a93330d44981a66bd6ef883</id>
<content type='text'>
Pull SoC fixes from Arnd Bergmann:

 - The ff-a firmware driver gets 11 individual bugfixes for a number of
   issues with robustness to buggy firmware or client implementations.
   Another firmware fix address suspend to RAM via PSCI firmware.

 - The final code change is for the old Arm Integrator reference
   platform that recently started exposing an old NULL pointer
   dereference bug.

 - The MAINTAINERS file gets two updates, notably James Tai and Yu-Chun
   Lin are stepping up as co-maintainers for the Realtek platform.

 - The remaining patches are all for devicetree files. Two of these are
   for riscv boards, the rest are all for enesas Arm platforms,
   addressing build time checking issues as well as minor configuration
   problems.

* tag 'soc-fixes-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits)
  firmware: psci: Set pm_set_resume/suspend_via_firmware() for SYSTEM_SUSPEND
  ARM: realtek: MAINTAINERS: Include pin controller drivers
  MAINTAINERS: Add maintainers for ARM/REALTEK ARCHITECTURE
  ARM: integrator: Fix early initialization
  firmware: arm_ffa: Fix sched-recv callback partition lookup
  firmware: arm_ffa: Snapshot notifier callbacks under lock
  firmware: arm_ffa: Align RxTx buffer size before mapping
  firmware: arm_ffa: Validate framework notification message layout
  firmware: arm_ffa: Keep framework RX release under lock
  firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies
  firmware: arm_ffa: Unregister bus notifier on teardown for FF-A v1.0
  firmware: arm_ffa: Fix per-vcpu self notifications handling in workqueue
  firmware: arm_ffa: Avoid collapsing NPI work from different CPUs
  firmware: arm_ffa: Skip free_pages on RX buffer alloc failure
  firmware: arm_ffa: Check for NULL FF-A ID table while driver registration
  riscv: dts: microchip: fix icicle i2c pinctrl configuration
  riscv: dts: starfive: jh7110: Drop CAMSS node
  arm64: dts: renesas: r9a09g056: Add #mux-state-cells to usb20phyrst
  arm64: dts: renesas: r9a09g057: Add #mux-state-cells to usb2{0,1}phyrst
  ARM: dts: renesas: rskrza1: Drop superfluous cells
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull SoC fixes from Arnd Bergmann:

 - The ff-a firmware driver gets 11 individual bugfixes for a number of
   issues with robustness to buggy firmware or client implementations.
   Another firmware fix address suspend to RAM via PSCI firmware.

 - The final code change is for the old Arm Integrator reference
   platform that recently started exposing an old NULL pointer
   dereference bug.

 - The MAINTAINERS file gets two updates, notably James Tai and Yu-Chun
   Lin are stepping up as co-maintainers for the Realtek platform.

 - The remaining patches are all for devicetree files. Two of these are
   for riscv boards, the rest are all for enesas Arm platforms,
   addressing build time checking issues as well as minor configuration
   problems.

* tag 'soc-fixes-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits)
  firmware: psci: Set pm_set_resume/suspend_via_firmware() for SYSTEM_SUSPEND
  ARM: realtek: MAINTAINERS: Include pin controller drivers
  MAINTAINERS: Add maintainers for ARM/REALTEK ARCHITECTURE
  ARM: integrator: Fix early initialization
  firmware: arm_ffa: Fix sched-recv callback partition lookup
  firmware: arm_ffa: Snapshot notifier callbacks under lock
  firmware: arm_ffa: Align RxTx buffer size before mapping
  firmware: arm_ffa: Validate framework notification message layout
  firmware: arm_ffa: Keep framework RX release under lock
  firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies
  firmware: arm_ffa: Unregister bus notifier on teardown for FF-A v1.0
  firmware: arm_ffa: Fix per-vcpu self notifications handling in workqueue
  firmware: arm_ffa: Avoid collapsing NPI work from different CPUs
  firmware: arm_ffa: Skip free_pages on RX buffer alloc failure
  firmware: arm_ffa: Check for NULL FF-A ID table while driver registration
  riscv: dts: microchip: fix icicle i2c pinctrl configuration
  riscv: dts: starfive: jh7110: Drop CAMSS node
  arm64: dts: renesas: r9a09g056: Add #mux-state-cells to usb20phyrst
  arm64: dts: renesas: r9a09g057: Add #mux-state-cells to usb2{0,1}phyrst
  ARM: dts: renesas: rskrza1: Drop superfluous cells
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>efi/loongarch: Randomize kernel preferred address for KASLR</title>
<updated>2026-05-21T12:58:36+00:00</updated>
<author>
<name>WANG Rui</name>
<email>wangrui@loongson.cn</email>
</author>
<published>2026-05-21T12:58:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=03d8273542146f228c0019f08b57545fdee79704'/>
<id>03d8273542146f228c0019f08b57545fdee79704</id>
<content type='text'>
Introduce efi_get_kimg_kaslr_address() helper to compute the preferred
kernel image load address dynamically when CONFIG_RANDOMIZE_BASE is
enabled. The function derives a random offset by using the EFI-provided
randomness combined with the timer tick value, and constrains it within
CONFIG_RANDOMIZE_BASE_MAX_OFFSET.

Update EFI_KIMG_PREFERRED_ADDRESS to call this helper so that the EFI
stub can select a randomized load address when KASLR is active, while
preserving the original base address behavior when KASLR is disabled or
"nokaslr" is specified.

Note: LoongArch can't KASLR for hibernation, so set efi_nokaslr to true
if "resume=&lt;devname&gt;" is explicitly specified in cmdline.

Acked-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Signed-off-by: WANG Rui &lt;wangrui@loongson.cn&gt;
Signed-off-by: Huacai Chen &lt;chenhuacai@loongson.cn&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Introduce efi_get_kimg_kaslr_address() helper to compute the preferred
kernel image load address dynamically when CONFIG_RANDOMIZE_BASE is
enabled. The function derives a random offset by using the EFI-provided
randomness combined with the timer tick value, and constrains it within
CONFIG_RANDOMIZE_BASE_MAX_OFFSET.

Update EFI_KIMG_PREFERRED_ADDRESS to call this helper so that the EFI
stub can select a randomized load address when KASLR is active, while
preserving the original base address behavior when KASLR is disabled or
"nokaslr" is specified.

Note: LoongArch can't KASLR for hibernation, so set efi_nokaslr to true
if "resume=&lt;devname&gt;" is explicitly specified in cmdline.

Acked-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Signed-off-by: WANG Rui &lt;wangrui@loongson.cn&gt;
Signed-off-by: Huacai Chen &lt;chenhuacai@loongson.cn&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>efi: sysfb_efi: Extend quirk to cover IdeaPad Duet 3 10IGL5-LTE</title>
<updated>2026-05-19T15:27:15+00:00</updated>
<author>
<name>Marius Hoch</name>
<email>mail@mariushoch.de</email>
</author>
<published>2026-05-17T19:23:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=d8809f6931065cbbf3554647a50a65a471ab5983'/>
<id>d8809f6931065cbbf3554647a50a65a471ab5983</id>
<content type='text'>
The LTE enabled version of the IdeaPad Duet 3 10IGL5 needs the
same quirk as the non-LTE version. As these are the only two
IdeaPad Duet 3 10IGL5 versions, we can safely use non exact matching.

Tested on a IdeaPad Duet 3 10IGL5-LTE.

Signed-off-by: Marius Hoch &lt;mail@mariushoch.de&gt;
Signed-off-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The LTE enabled version of the IdeaPad Duet 3 10IGL5 needs the
same quirk as the non-LTE version. As these are the only two
IdeaPad Duet 3 10IGL5 versions, we can safely use non exact matching.

Tested on a IdeaPad Duet 3 10IGL5-LTE.

Signed-off-by: Marius Hoch &lt;mail@mariushoch.de&gt;
Signed-off-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>efi: Allocate runtime workqueue before ACPI init</title>
<updated>2026-05-19T15:24:00+00:00</updated>
<author>
<name>Ard Biesheuvel</name>
<email>ardb@kernel.org</email>
</author>
<published>2026-05-19T08:03:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=13c6da02e767152c9ac4330962247a5e47011035'/>
<id>13c6da02e767152c9ac4330962247a5e47011035</id>
<content type='text'>
Since commit

  5894cf571e14 ("acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers")

ACPI PRM calls are delegated to a workqueue which runs in a kernel
thread, making it easier to detect and mitigate faulting memory accesses
performed by the firmware.

Rafael reports that such PRM accesses may occur before efisubsys_init()
executes, which is where the workqueue is allocated, leading to NULL
pointer dereferences. Since acpi_init() [which triggers the early PRM
accesses] executes as a subsys_initcall() as well, and has its own
dependencies that may be sensitive to initcall ordering, deferring
acpi_init() is not an option.

So instead, split off the workqueue allocation into its own postcore
initcall, as this is the only missing piece to allow EFI runtime calls
to be made. This ensures that EFI runtime call (including PRM calls) are
accessible to all code running at subsys_initcall() level.

Cc: &lt;stable@vger.kernel.org&gt;
Fixes: 5894cf571e14 ("acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers")
Reviewed-by: Rafael J. Wysocki (Intel) &lt;rafael@kernel.org&gt;
Signed-off-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since commit

  5894cf571e14 ("acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers")

ACPI PRM calls are delegated to a workqueue which runs in a kernel
thread, making it easier to detect and mitigate faulting memory accesses
performed by the firmware.

Rafael reports that such PRM accesses may occur before efisubsys_init()
executes, which is where the workqueue is allocated, leading to NULL
pointer dereferences. Since acpi_init() [which triggers the early PRM
accesses] executes as a subsys_initcall() as well, and has its own
dependencies that may be sensitive to initcall ordering, deferring
acpi_init() is not an option.

So instead, split off the workqueue allocation into its own postcore
initcall, as this is the only missing piece to allow EFI runtime calls
to be made. This ensures that EFI runtime call (including PRM calls) are
accessible to all code running at subsys_initcall() level.

Cc: &lt;stable@vger.kernel.org&gt;
Fixes: 5894cf571e14 ("acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers")
Reviewed-by: Rafael J. Wysocki (Intel) &lt;rafael@kernel.org&gt;
Signed-off-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
