<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/of, branch v6.18-rc2</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge tag 'devicetree-fixes-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux</title>
<updated>2025-10-10T20:05:40+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-10-10T20:05:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=f76b1683d16dcd5299a9b67d8ef45fe8d29cb2e6'/>
<id>f76b1683d16dcd5299a9b67d8ef45fe8d29cb2e6</id>
<content type='text'>
Pull devicetree fixes from Rob Herring:

 - Allow child nodes on renesas-bsc bus binding

 - Drop node name pattern on allwinner,sun50i-a64-de2 bus binding

 - Switch DT patchwork to kernel.org from ozlabs.org

 - Fix some typos in docs and bindings

 - Fix reference count in PCI node unittest

* tag 'devicetree-fixes-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: bus: renesas-bsc: allow additional properties
  dt-bindings: bus: allwinner,sun50i-a64-de2: don't check node names
  MAINTAINERS: Move DT patchwork to kernel.org
  of: unittest: Fix device reference count leak in of_unittest_pci_node_verify
  of: doc: Fix typo in doc comments.
  dt-bindings: mmc: Correct typo "upto" to "up to"
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull devicetree fixes from Rob Herring:

 - Allow child nodes on renesas-bsc bus binding

 - Drop node name pattern on allwinner,sun50i-a64-de2 bus binding

 - Switch DT patchwork to kernel.org from ozlabs.org

 - Fix some typos in docs and bindings

 - Fix reference count in PCI node unittest

* tag 'devicetree-fixes-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: bus: renesas-bsc: allow additional properties
  dt-bindings: bus: allwinner,sun50i-a64-de2: don't check node names
  MAINTAINERS: Move DT patchwork to kernel.org
  of: unittest: Fix device reference count leak in of_unittest_pci_node_verify
  of: doc: Fix typo in doc comments.
  dt-bindings: mmc: Correct typo "upto" to "up to"
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'devicetree-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux</title>
<updated>2025-10-01T23:58:24+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-10-01T23:58:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=9792d660a4e91d31a6b1af105ae3f1c29107e94b'/>
<id>9792d660a4e91d31a6b1af105ae3f1c29107e94b</id>
<content type='text'>
Pull devicetree updates from Rob Herring:
 "DT core:

   - Update dtc to upstream version v1.7.2-35-g52f07dcca47c

   - Add stub for of_get_next_child_with_prefix()

   - Convert of_msi_map_id() callers to of_msi_xlate()

 DT bindings:

   - Convert multiple text board bindings to DT schema format

   - Add bindings for synaptics,synaptics_i2c touchscreen controller,
     innolux,n133hse-ea1 and nlt,nl12880bc20-spwg-24 displays, and NXP
     vf610 reboot controller

   - Add new Arm Cortex-A320/A520AE/A720AE and C1-Nano/Pro/Premium/Ultra
     CPUs. Add missing Applied Micro CPU compatibles. Add pu-supply and
     fsl,soc-operating-points properties for CPU nodes.

   - Add QCom Glymur PDC and tegra264-agic interrupt controllers

   - Add samsung,exynos8890-mali GPU to Arm Mali Midgard

   - Drop Samsung S3C2410 display related bindings

   - Allow separate DP lane and AUX connections in dp-connector

   - Add some missing, undocumented vendor prefixes

   - Add missing '#address-cells' properties in interrupt controller
     bindings which dtc now warns about

   - Drop duplicate socfpga-sdram-edac.txt, moxa,moxart-watchdog.txt,
     fsl/mpic.txt, ti,opa362.txt, and cavium-thunder2.txt legacy text
     bindings which are already covered by existing schemas.

   - Various binding fixes for Mediatek platforms in mailbox, regulator,
     pinctrl, timer, and display

   - Drop work-around for yamllint quoting of values containing ','

   - Various spelling, typo, grammar, and duplicated words fixes in DT
     bindings and docs

   - Add binding guidelines for defining properties at top level of
     schemas, lack of node name ABI, and usage of simple-mfd"

* tag 'devicetree-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (81 commits)
  dt-bindings: arm: altera: Drop socfpga-sdram-edac.txt
  dt-bindings: gpu: Convert nvidia,gk20a to DT schema
  dt-bindings: rng: sparc_sun_oracle_rng: convert to DT schema
  dt-bindings: vendor-prefixes: update regex for properties without a prefix
  dt-bindings: display: bridge: convert megachips-stdpxxxx-ge-b850v3-fw.txt to yaml
  scripts: dt_to_config: fix grammar and a typo in --help text
  dt-bindings: fix spelling, typos, grammar, duplicated words
  docs: dt: fix grammar and spelling
  of: base: Add of_get_next_child_with_prefix() stub
  dt-bindings: trivial-devices: Add compatible string synaptics,synaptics_i2c
  dt-bindings: soc: mediatek: pwrap: Add power-domains property
  dt-bindings: pinctrl: mt65xx: Allow gpio-line-names
  dt-bindings: media: Convert MediaTek mt8173-vpu bindings to DT schema
  dt-bindings: arm: mediatek: Support mt8183-audiosys variant
  dt-bindings: mailbox: mediatek,gce-mailbox: Make clock-names optional
  dt-bindings: regulator: mediatek,mt6331: Add missing compatible
  dt-bindings: regulator: mediatek,mt6331: Fix various regulator names
  dt-bindings: regulator: mediatek,mt6332-regulator: Add missing compatible
  dt-bindings: pinctrl: mediatek,mt7622-pinctrl: Add missing base reg
  dt-bindings: pinctrl: mediatek,mt7622-pinctrl: Add missing pwm_ch7_2
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull devicetree updates from Rob Herring:
 "DT core:

   - Update dtc to upstream version v1.7.2-35-g52f07dcca47c

   - Add stub for of_get_next_child_with_prefix()

   - Convert of_msi_map_id() callers to of_msi_xlate()

 DT bindings:

   - Convert multiple text board bindings to DT schema format

   - Add bindings for synaptics,synaptics_i2c touchscreen controller,
     innolux,n133hse-ea1 and nlt,nl12880bc20-spwg-24 displays, and NXP
     vf610 reboot controller

   - Add new Arm Cortex-A320/A520AE/A720AE and C1-Nano/Pro/Premium/Ultra
     CPUs. Add missing Applied Micro CPU compatibles. Add pu-supply and
     fsl,soc-operating-points properties for CPU nodes.

   - Add QCom Glymur PDC and tegra264-agic interrupt controllers

   - Add samsung,exynos8890-mali GPU to Arm Mali Midgard

   - Drop Samsung S3C2410 display related bindings

   - Allow separate DP lane and AUX connections in dp-connector

   - Add some missing, undocumented vendor prefixes

   - Add missing '#address-cells' properties in interrupt controller
     bindings which dtc now warns about

   - Drop duplicate socfpga-sdram-edac.txt, moxa,moxart-watchdog.txt,
     fsl/mpic.txt, ti,opa362.txt, and cavium-thunder2.txt legacy text
     bindings which are already covered by existing schemas.

   - Various binding fixes for Mediatek platforms in mailbox, regulator,
     pinctrl, timer, and display

   - Drop work-around for yamllint quoting of values containing ','

   - Various spelling, typo, grammar, and duplicated words fixes in DT
     bindings and docs

   - Add binding guidelines for defining properties at top level of
     schemas, lack of node name ABI, and usage of simple-mfd"

* tag 'devicetree-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (81 commits)
  dt-bindings: arm: altera: Drop socfpga-sdram-edac.txt
  dt-bindings: gpu: Convert nvidia,gk20a to DT schema
  dt-bindings: rng: sparc_sun_oracle_rng: convert to DT schema
  dt-bindings: vendor-prefixes: update regex for properties without a prefix
  dt-bindings: display: bridge: convert megachips-stdpxxxx-ge-b850v3-fw.txt to yaml
  scripts: dt_to_config: fix grammar and a typo in --help text
  dt-bindings: fix spelling, typos, grammar, duplicated words
  docs: dt: fix grammar and spelling
  of: base: Add of_get_next_child_with_prefix() stub
  dt-bindings: trivial-devices: Add compatible string synaptics,synaptics_i2c
  dt-bindings: soc: mediatek: pwrap: Add power-domains property
  dt-bindings: pinctrl: mt65xx: Allow gpio-line-names
  dt-bindings: media: Convert MediaTek mt8173-vpu bindings to DT schema
  dt-bindings: arm: mediatek: Support mt8183-audiosys variant
  dt-bindings: mailbox: mediatek,gce-mailbox: Make clock-names optional
  dt-bindings: regulator: mediatek,mt6331: Add missing compatible
  dt-bindings: regulator: mediatek,mt6331: Fix various regulator names
  dt-bindings: regulator: mediatek,mt6332-regulator: Add missing compatible
  dt-bindings: pinctrl: mediatek,mt7622-pinctrl: Add missing base reg
  dt-bindings: pinctrl: mediatek,mt7622-pinctrl: Add missing pwm_ch7_2
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>of: unittest: Fix device reference count leak in of_unittest_pci_node_verify</title>
<updated>2025-10-01T14:33:23+00:00</updated>
<author>
<name>Ma Ke</name>
<email>make24@iscas.ac.cn</email>
</author>
<published>2025-09-30T08:16:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=a8de554774ae48efbe48ace79f8badae2daa2bf1'/>
<id>a8de554774ae48efbe48ace79f8badae2daa2bf1</id>
<content type='text'>
In of_unittest_pci_node_verify(), when the add parameter is false,
device_find_any_child() obtains a reference to a child device. This
function implicitly calls get_device() to increment the device's
reference count before returning the pointer. However, the caller
fails to properly release this reference by calling put_device(),
leading to a device reference count leak. Add put_device() in the else
branch immediately after child_dev is no longer needed.

As the comment of device_find_any_child states: "NOTE: you will need
to drop the reference with put_device() after use".

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 26409dd04589 ("of: unittest: Add pci_dt_testdrv pci driver")
Signed-off-by: Ma Ke &lt;make24@iscas.ac.cn&gt;
Signed-off-by: Rob Herring (Arm) &lt;robh@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In of_unittest_pci_node_verify(), when the add parameter is false,
device_find_any_child() obtains a reference to a child device. This
function implicitly calls get_device() to increment the device's
reference count before returning the pointer. However, the caller
fails to properly release this reference by calling put_device(),
leading to a device reference count leak. Add put_device() in the else
branch immediately after child_dev is no longer needed.

As the comment of device_find_any_child states: "NOTE: you will need
to drop the reference with put_device() after use".

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 26409dd04589 ("of: unittest: Add pci_dt_testdrv pci driver")
Signed-off-by: Ma Ke &lt;make24@iscas.ac.cn&gt;
Signed-off-by: Rob Herring (Arm) &lt;robh@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>of: doc: Fix typo in doc comments.</title>
<updated>2025-10-01T12:55:42+00:00</updated>
<author>
<name>Bhanu Seshu Kumar Valluri</name>
<email>bhanuseshukumar@gmail.com</email>
</author>
<published>2025-10-01T08:57:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=4e66293bb141df33d5eb1f922e16fe05913bf296'/>
<id>4e66293bb141df33d5eb1f922e16fe05913bf296</id>
<content type='text'>
synthetized =&gt; synthesized
definied =&gt; defined
sucess =&gt; success

Signed-off-by: Bhanu Seshu Kumar Valluri &lt;bhanuseshukumar@gmail.com&gt;
Signed-off-by: Rob Herring (Arm) &lt;robh@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
synthetized =&gt; synthesized
definied =&gt; defined
sucess =&gt; success

Signed-off-by: Bhanu Seshu Kumar Valluri &lt;bhanuseshukumar@gmail.com&gt;
Signed-off-by: Rob Herring (Arm) &lt;robh@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'timers-clocksource-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</title>
<updated>2025-09-30T23:53:59+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-09-30T23:53:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=70de5572a82b3d510df31d2c572c15cd53a00870'/>
<id>70de5572a82b3d510df31d2c572c15cd53a00870</id>
<content type='text'>
Pull clocksource updates from Thomas Gleixner:

 - Further preparations for modular clocksource/event drivers

 - The usual device tree updates to support new chip variants and the
   related changes to thise drivers

 - Avoid a 64-bit division in the TEGRA186 driver, which caused a build
   fail on 32-bit machines.

 - Small fixes, improvements and cleanups all over the place

* tag 'timers-clocksource-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
  dt-bindings: timer: exynos4210-mct: Add compatible for ARTPEC-9 SoC
  clocksource/drivers/sh_cmt: Split start/stop of clock source and events
  clocksource/drivers/clps711x: Fix resource leaks in error paths
  clocksource/drivers/arm_global_timer: Add auto-detection for initial prescaler values
  clocksource/drivers/ingenic-sysost: Convert from round_rate() to determine_rate()
  clocksource/drivers/timer-tegra186: Don't print superfluous errors
  clocksource/drivers/timer-rtl-otto: Simplify documentation
  clocksource/drivers/timer-rtl-otto: Do not interfere with interrupts
  clocksource/drivers/timer-rtl-otto: Drop set_counter function
  clocksource/drivers/timer-rtl-otto: Work around dying timers
  clocksource/drivers/timer-ti-dm : Capture functionality for OMAP DM timer
  clocksource/drivers/arm_arch_timer_mmio: Add MMIO clocksource
  clocksource/drivers/arm_arch_timer_mmio: Switch over to standalone driver
  clocksource/drivers/arm_arch_timer: Add standalone MMIO driver
  ACPI: GTDT: Generate platform devices for MMIO timers
  clocksource/drivers/nxp-pit: Add NXP Automotive s32g2 / s32g3 support
  dt: bindings: fsl,vf610-pit: Add compatible for s32g2 and s32g3
  clocksource/drivers/vf-pit: Rename the VF PIT to NXP PIT
  clocksource/drivers/vf-pit: Unify the function name for irq ack
  clocksource/drivers/vf-pit: Consolidate calls to pit_*_disable/enable
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull clocksource updates from Thomas Gleixner:

 - Further preparations for modular clocksource/event drivers

 - The usual device tree updates to support new chip variants and the
   related changes to thise drivers

 - Avoid a 64-bit division in the TEGRA186 driver, which caused a build
   fail on 32-bit machines.

 - Small fixes, improvements and cleanups all over the place

* tag 'timers-clocksource-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
  dt-bindings: timer: exynos4210-mct: Add compatible for ARTPEC-9 SoC
  clocksource/drivers/sh_cmt: Split start/stop of clock source and events
  clocksource/drivers/clps711x: Fix resource leaks in error paths
  clocksource/drivers/arm_global_timer: Add auto-detection for initial prescaler values
  clocksource/drivers/ingenic-sysost: Convert from round_rate() to determine_rate()
  clocksource/drivers/timer-tegra186: Don't print superfluous errors
  clocksource/drivers/timer-rtl-otto: Simplify documentation
  clocksource/drivers/timer-rtl-otto: Do not interfere with interrupts
  clocksource/drivers/timer-rtl-otto: Drop set_counter function
  clocksource/drivers/timer-rtl-otto: Work around dying timers
  clocksource/drivers/timer-ti-dm : Capture functionality for OMAP DM timer
  clocksource/drivers/arm_arch_timer_mmio: Add MMIO clocksource
  clocksource/drivers/arm_arch_timer_mmio: Switch over to standalone driver
  clocksource/drivers/arm_arch_timer: Add standalone MMIO driver
  ACPI: GTDT: Generate platform devices for MMIO timers
  clocksource/drivers/nxp-pit: Add NXP Automotive s32g2 / s32g3 support
  dt: bindings: fsl,vf610-pit: Add compatible for s32g2 and s32g3
  clocksource/drivers/vf-pit: Rename the VF PIT to NXP PIT
  clocksource/drivers/vf-pit: Unify the function name for irq ack
  clocksource/drivers/vf-pit: Consolidate calls to pit_*_disable/enable
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>of/irq: Export of_irq_count for modules</title>
<updated>2025-09-23T08:53:53+00:00</updated>
<author>
<name>Will McVicker</name>
<email>willmcvicker@google.com</email>
</author>
<published>2025-06-20T18:17:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=be26ec8b1479a0bb1888ed93d7bb5ce4d8eaee1e'/>
<id>be26ec8b1479a0bb1888ed93d7bb5ce4d8eaee1e</id>
<content type='text'>
Need to export `of_irq_count` in preparation for modularizing the Exynos
MCT driver which uses this API for setting up the timer IRQs.

Signed-off-by: Will McVicker &lt;willmcvicker@google.com&gt;
Signed-off-by: Daniel Lezcano &lt;daniel.lezcano@linaro.org&gt;
Tested-by: Youngmin Nam &lt;youngmin.nam@samsung.com&gt;
Reviewed-by: Linus Walleij &lt;linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org&gt;
Reviewed-by: Youngmin Nam &lt;youngmin.nam@samsung.com&gt;
Acked-by: Rob Herring (Arm) &lt;robh@kernel.org&gt;
Acked-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Link: https://lore.kernel.org/r/20250620181719.1399856-2-willmcvicker@google.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Need to export `of_irq_count` in preparation for modularizing the Exynos
MCT driver which uses this API for setting up the timer IRQs.

Signed-off-by: Will McVicker &lt;willmcvicker@google.com&gt;
Signed-off-by: Daniel Lezcano &lt;daniel.lezcano@linaro.org&gt;
Tested-by: Youngmin Nam &lt;youngmin.nam@samsung.com&gt;
Reviewed-by: Linus Walleij &lt;linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org&gt;
Reviewed-by: Youngmin Nam &lt;youngmin.nam@samsung.com&gt;
Acked-by: Rob Herring (Arm) &lt;robh@kernel.org&gt;
Acked-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Link: https://lore.kernel.org/r/20250620181719.1399856-2-willmcvicker@google.com
</pre>
</div>
</content>
</entry>
<entry>
<title>of/irq: Convert of_msi_map_id() callers to of_msi_xlate()</title>
<updated>2025-09-03T14:01:26+00:00</updated>
<author>
<name>Lorenzo Pieralisi</name>
<email>lpieralisi@kernel.org</email>
</author>
<published>2025-08-05T13:34:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=a576a849d5f33356e0d8fd3eae4fbaf8869417e5'/>
<id>a576a849d5f33356e0d8fd3eae4fbaf8869417e5</id>
<content type='text'>
With the introduction of the of_msi_xlate() function, the OF layer
provides an API to map a device ID and retrieve the MSI controller
node the ID is mapped to with a single call.

of_msi_map_id() is currently used to map a deviceID to a specific
MSI controller node; of_msi_xlate() can be used for that purpose
too, there is no need to keep the two functions.

Convert of_msi_map_id() to of_msi_xlate() calls and update the
of_msi_xlate() documentation to describe how the struct device_node
pointer passed in should be set-up to either provide the MSI controller
node target or receive its pointer upon mapping completion.

Signed-off-by: Lorenzo Pieralisi &lt;lpieralisi@kernel.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Rob Herring &lt;robh@kernel.org&gt;
Cc: Marc Zyngier &lt;maz@kernel.org&gt;
Acked-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Frank Li &lt;Frank.Li@nxp.com&gt;
Link: https://lore.kernel.org/r/20250805133443.936955-1-lpieralisi@kernel.org
Signed-off-by: Rob Herring (Arm) &lt;robh@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
With the introduction of the of_msi_xlate() function, the OF layer
provides an API to map a device ID and retrieve the MSI controller
node the ID is mapped to with a single call.

of_msi_map_id() is currently used to map a deviceID to a specific
MSI controller node; of_msi_xlate() can be used for that purpose
too, there is no need to keep the two functions.

Convert of_msi_map_id() to of_msi_xlate() calls and update the
of_msi_xlate() documentation to describe how the struct device_node
pointer passed in should be set-up to either provide the MSI controller
node target or receive its pointer upon mapping completion.

Signed-off-by: Lorenzo Pieralisi &lt;lpieralisi@kernel.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Rob Herring &lt;robh@kernel.org&gt;
Cc: Marc Zyngier &lt;maz@kernel.org&gt;
Acked-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Frank Li &lt;Frank.Li@nxp.com&gt;
Link: https://lore.kernel.org/r/20250805133443.936955-1-lpieralisi@kernel.org
Signed-off-by: Rob Herring (Arm) &lt;robh@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm</title>
<updated>2025-09-02T20:18:00+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-09-02T20:18:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=8026aed072e1221f0a61e5acc48c64546341bd4d'/>
<id>8026aed072e1221f0a61e5acc48c64546341bd4d</id>
<content type='text'>
Pull misc fixes from Andrew Morton:
 "17 hotfixes. 13 are cc:stable and the remainder address post-6.16
  issues or aren't considered necessary for -stable kernels. 11 of these
  fixes are for MM.

  This includes a three-patch series from Harry Yoo which fixes an
  intermittent boot failure which can occur on x86 systems. And a
  two-patch series from Alexander Gordeev which fixes a KASAN crash on
  S390 systems"

* tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: fix possible deadlock in kmemleak
  x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings()
  mm: introduce and use {pgd,p4d}_populate_kernel()
  mm: move page table sync declarations to linux/pgtable.h
  proc: fix missing pde_set_flags() for net proc files
  mm: fix accounting of memmap pages
  mm/damon/core: prevent unnecessary overflow in damos_set_effective_quota()
  kexec: add KEXEC_FILE_NO_CMA as a legal flag
  kasan: fix GCC mem-intrinsic prefix with sw tags
  mm/kasan: avoid lazy MMU mode hazards
  mm/kasan: fix vmalloc shadow memory (de-)population races
  kunit: kasan_test: disable fortify string checker on kasan_strings() test
  selftests/mm: fix FORCE_READ to read input value correctly
  mm/userfaultfd: fix kmap_local LIFO ordering for CONFIG_HIGHPTE
  ocfs2: prevent release journal inode after journal shutdown
  rust: mm: mark VmaNew as transparent
  of_numa: fix uninitialized memory nodes causing kernel panic
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull misc fixes from Andrew Morton:
 "17 hotfixes. 13 are cc:stable and the remainder address post-6.16
  issues or aren't considered necessary for -stable kernels. 11 of these
  fixes are for MM.

  This includes a three-patch series from Harry Yoo which fixes an
  intermittent boot failure which can occur on x86 systems. And a
  two-patch series from Alexander Gordeev which fixes a KASAN crash on
  S390 systems"

* tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: fix possible deadlock in kmemleak
  x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings()
  mm: introduce and use {pgd,p4d}_populate_kernel()
  mm: move page table sync declarations to linux/pgtable.h
  proc: fix missing pde_set_flags() for net proc files
  mm: fix accounting of memmap pages
  mm/damon/core: prevent unnecessary overflow in damos_set_effective_quota()
  kexec: add KEXEC_FILE_NO_CMA as a legal flag
  kasan: fix GCC mem-intrinsic prefix with sw tags
  mm/kasan: avoid lazy MMU mode hazards
  mm/kasan: fix vmalloc shadow memory (de-)population races
  kunit: kasan_test: disable fortify string checker on kasan_strings() test
  selftests/mm: fix FORCE_READ to read input value correctly
  mm/userfaultfd: fix kmap_local LIFO ordering for CONFIG_HIGHPTE
  ocfs2: prevent release journal inode after journal shutdown
  rust: mm: mark VmaNew as transparent
  of_numa: fix uninitialized memory nodes causing kernel panic
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'dma-mapping-6.17-2025-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux</title>
<updated>2025-08-28T23:04:14+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2025-08-28T23:04:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=4d28e280981337360b20ac9812bf0eab9224d5a3'/>
<id>4d28e280981337360b20ac9812bf0eab9224d5a3</id>
<content type='text'>
Pull dma-mapping fixes from Marek Szyprowski:

 - another small fix for arm64 systems with memory encryption (Shanker
   Donthineni)

 - fix for arm32 systems with non-standard CMA configuration (Oreoluwa
   Babatunde)

* tag 'dma-mapping-6.17-2025-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
  dma/pool: Ensure DMA_DIRECT_REMAP allocations are decrypted
  of: reserved_mem: Restructure call site for dma_contiguous_early_fixup()
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull dma-mapping fixes from Marek Szyprowski:

 - another small fix for arm64 systems with memory encryption (Shanker
   Donthineni)

 - fix for arm32 systems with non-standard CMA configuration (Oreoluwa
   Babatunde)

* tag 'dma-mapping-6.17-2025-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
  dma/pool: Ensure DMA_DIRECT_REMAP allocations are decrypted
  of: reserved_mem: Restructure call site for dma_contiguous_early_fixup()
</pre>
</div>
</content>
</entry>
<entry>
<title>of_numa: fix uninitialized memory nodes causing kernel panic</title>
<updated>2025-08-28T05:45:41+00:00</updated>
<author>
<name>Yin Tirui</name>
<email>yintirui@huawei.com</email>
</author>
<published>2025-08-19T07:55:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=ee4d098cbc9160f573b5c1b5a51d6158efdb2896'/>
<id>ee4d098cbc9160f573b5c1b5a51d6158efdb2896</id>
<content type='text'>
When there are memory-only nodes (nodes without CPUs), these nodes are not
properly initialized, causing kernel panic during boot.

of_numa_init
	of_numa_parse_cpu_nodes
		node_set(nid, numa_nodes_parsed);
	of_numa_parse_memory_nodes

In of_numa_parse_cpu_nodes, numa_nodes_parsed gets updated only for nodes
containing CPUs.  Memory-only nodes should have been updated in
of_numa_parse_memory_nodes, but they weren't.

Subsequently, when free_area_init() attempts to access NODE_DATA() for
these uninitialized memory nodes, the kernel panics due to NULL pointer
dereference.

This can be reproduced on ARM64 QEMU with 1 CPU and 2 memory nodes:

qemu-system-aarch64 \
-cpu host -nographic \
-m 4G -smp 1 \
-machine virt,accel=kvm,gic-version=3,iommu=smmuv3 \
-object memory-backend-ram,size=2G,id=mem0 \
-object memory-backend-ram,size=2G,id=mem1 \
-numa node,nodeid=0,memdev=mem0 \
-numa node,nodeid=1,memdev=mem1 \
-kernel $IMAGE \
-hda $DISK \
-append "console=ttyAMA0 root=/dev/vda rw earlycon"

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x481fd010]
[    0.000000] Linux version 6.17.0-rc1-00001-gabb4b3daf18c-dirty (yintirui@local) (gcc (GCC) 12.3.1, GNU ld (GNU Binutils) 2.41) #52 SMP PREEMPT Mon Aug 18 09:49:40 CST 2025
[    0.000000] KASLR enabled
[    0.000000] random: crng init done
[    0.000000] Machine model: linux,dummy-virt
[    0.000000] efi: UEFI not found.
[    0.000000] earlycon: pl11 at MMIO 0x0000000009000000 (options '')
[    0.000000] printk: legacy bootconsole [pl11] enabled
[    0.000000] OF: reserved mem: Reserved memory: No reserved-memory node in the DT
[    0.000000] NODE_DATA(0) allocated [mem 0xbfffd9c0-0xbfffffff]
[    0.000000] node 1 must be removed before remove section 23
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000040000000-0x00000000ffffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   [mem 0x0000000100000000-0x000000013fffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000]   node   1: [mem 0x00000000c0000000-0x000000013fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0
[    0.000000] Mem abort info:
[    0.000000]   ESR = 0x0000000096000004
[    0.000000]   EC = 0x25: DABT (current EL), IL = 32 bits
[    0.000000]   SET = 0, FnV = 0
[    0.000000]   EA = 0, S1PTW = 0
[    0.000000]   FSC = 0x04: level 0 translation fault
[    0.000000] Data abort info:
[    0.000000]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[    0.000000]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[    0.000000]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[    0.000000] [00000000000000a0] user address but active_mm is swapper
[    0.000000] Internal error: Oops: 0000000096000004 [#1]  SMP
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.17.0-rc1-00001-g760c6dabf762-dirty #54 PREEMPT
[    0.000000] Hardware name: linux,dummy-virt (DT)
[    0.000000] pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    0.000000] pc : free_area_init+0x50c/0xf9c
[    0.000000] lr : free_area_init+0x5c0/0xf9c
[    0.000000] sp : ffffa02ca0f33c00
[    0.000000] x29: ffffa02ca0f33cb0 x28: 0000000000000000 x27: 0000000000000000
[    0.000000] x26: 4ec4ec4ec4ec4ec5 x25: 00000000000c0000 x24: 00000000000c0000
[    0.000000] x23: 0000000000040000 x22: 0000000000000000 x21: ffffa02ca0f3b368
[    0.000000] x20: ffffa02ca14c7b98 x19: 0000000000000000 x18: 0000000000000002
[    0.000000] x17: 000000000000cacc x16: 0000000000000001 x15: 0000000000000001
[    0.000000] x14: 0000000080000000 x13: 0000000000000018 x12: 0000000000000002
[    0.000000] x11: ffffa02ca0fd4f00 x10: ffffa02ca14bab20 x9 : ffffa02ca14bab38
[    0.000000] x8 : 00000000000c0000 x7 : 0000000000000001 x6 : 0000000000000002
[    0.000000] x5 : 0000000140000000 x4 : ffffa02ca0f33c90 x3 : ffffa02ca0f33ca0
[    0.000000] x2 : ffffa02ca0f33c98 x1 : 0000000080000000 x0 : 0000000000000001
[    0.000000] Call trace:
[    0.000000]  free_area_init+0x50c/0xf9c (P)
[    0.000000]  bootmem_init+0x110/0x1dc
[    0.000000]  setup_arch+0x278/0x60c
[    0.000000]  start_kernel+0x70/0x748
[    0.000000]  __primary_switched+0x88/0x90
[    0.000000] Code: d503201f b98093e0 52800016 f8607a93 (f9405260)
[    0.000000] ---[ end trace 0000000000000000 ]---
[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[    0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---

Link: https://lkml.kernel.org/r/20250819075510.2079961-1-yintirui@huawei.com
Fixes: 767507654c22 ("arch_numa: switch over to numa_memblks")
Signed-off-by: Yin Tirui &lt;yintirui@huawei.com&gt;
Acked-by: David Hildenbrand &lt;david@redhat.com&gt;
Acked-by: Mike Rapoport (Microsoft) &lt;rppt@kernel.org&gt;
Reviewed-by: Kefeng Wang &lt;wangkefeng.wang@huawei.com&gt;
Cc: Chen Jun &lt;chenjun102@huawei.com&gt;
Cc: Dan Williams &lt;dan.j.williams@intel.com&gt;
Cc: Joanthan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
Cc: Rob Herring &lt;robh@kernel.org&gt;
Cc: Saravana Kannan &lt;saravanak@google.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When there are memory-only nodes (nodes without CPUs), these nodes are not
properly initialized, causing kernel panic during boot.

of_numa_init
	of_numa_parse_cpu_nodes
		node_set(nid, numa_nodes_parsed);
	of_numa_parse_memory_nodes

In of_numa_parse_cpu_nodes, numa_nodes_parsed gets updated only for nodes
containing CPUs.  Memory-only nodes should have been updated in
of_numa_parse_memory_nodes, but they weren't.

Subsequently, when free_area_init() attempts to access NODE_DATA() for
these uninitialized memory nodes, the kernel panics due to NULL pointer
dereference.

This can be reproduced on ARM64 QEMU with 1 CPU and 2 memory nodes:

qemu-system-aarch64 \
-cpu host -nographic \
-m 4G -smp 1 \
-machine virt,accel=kvm,gic-version=3,iommu=smmuv3 \
-object memory-backend-ram,size=2G,id=mem0 \
-object memory-backend-ram,size=2G,id=mem1 \
-numa node,nodeid=0,memdev=mem0 \
-numa node,nodeid=1,memdev=mem1 \
-kernel $IMAGE \
-hda $DISK \
-append "console=ttyAMA0 root=/dev/vda rw earlycon"

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x481fd010]
[    0.000000] Linux version 6.17.0-rc1-00001-gabb4b3daf18c-dirty (yintirui@local) (gcc (GCC) 12.3.1, GNU ld (GNU Binutils) 2.41) #52 SMP PREEMPT Mon Aug 18 09:49:40 CST 2025
[    0.000000] KASLR enabled
[    0.000000] random: crng init done
[    0.000000] Machine model: linux,dummy-virt
[    0.000000] efi: UEFI not found.
[    0.000000] earlycon: pl11 at MMIO 0x0000000009000000 (options '')
[    0.000000] printk: legacy bootconsole [pl11] enabled
[    0.000000] OF: reserved mem: Reserved memory: No reserved-memory node in the DT
[    0.000000] NODE_DATA(0) allocated [mem 0xbfffd9c0-0xbfffffff]
[    0.000000] node 1 must be removed before remove section 23
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000040000000-0x00000000ffffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   [mem 0x0000000100000000-0x000000013fffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000]   node   1: [mem 0x00000000c0000000-0x000000013fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0
[    0.000000] Mem abort info:
[    0.000000]   ESR = 0x0000000096000004
[    0.000000]   EC = 0x25: DABT (current EL), IL = 32 bits
[    0.000000]   SET = 0, FnV = 0
[    0.000000]   EA = 0, S1PTW = 0
[    0.000000]   FSC = 0x04: level 0 translation fault
[    0.000000] Data abort info:
[    0.000000]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[    0.000000]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[    0.000000]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[    0.000000] [00000000000000a0] user address but active_mm is swapper
[    0.000000] Internal error: Oops: 0000000096000004 [#1]  SMP
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.17.0-rc1-00001-g760c6dabf762-dirty #54 PREEMPT
[    0.000000] Hardware name: linux,dummy-virt (DT)
[    0.000000] pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    0.000000] pc : free_area_init+0x50c/0xf9c
[    0.000000] lr : free_area_init+0x5c0/0xf9c
[    0.000000] sp : ffffa02ca0f33c00
[    0.000000] x29: ffffa02ca0f33cb0 x28: 0000000000000000 x27: 0000000000000000
[    0.000000] x26: 4ec4ec4ec4ec4ec5 x25: 00000000000c0000 x24: 00000000000c0000
[    0.000000] x23: 0000000000040000 x22: 0000000000000000 x21: ffffa02ca0f3b368
[    0.000000] x20: ffffa02ca14c7b98 x19: 0000000000000000 x18: 0000000000000002
[    0.000000] x17: 000000000000cacc x16: 0000000000000001 x15: 0000000000000001
[    0.000000] x14: 0000000080000000 x13: 0000000000000018 x12: 0000000000000002
[    0.000000] x11: ffffa02ca0fd4f00 x10: ffffa02ca14bab20 x9 : ffffa02ca14bab38
[    0.000000] x8 : 00000000000c0000 x7 : 0000000000000001 x6 : 0000000000000002
[    0.000000] x5 : 0000000140000000 x4 : ffffa02ca0f33c90 x3 : ffffa02ca0f33ca0
[    0.000000] x2 : ffffa02ca0f33c98 x1 : 0000000080000000 x0 : 0000000000000001
[    0.000000] Call trace:
[    0.000000]  free_area_init+0x50c/0xf9c (P)
[    0.000000]  bootmem_init+0x110/0x1dc
[    0.000000]  setup_arch+0x278/0x60c
[    0.000000]  start_kernel+0x70/0x748
[    0.000000]  __primary_switched+0x88/0x90
[    0.000000] Code: d503201f b98093e0 52800016 f8607a93 (f9405260)
[    0.000000] ---[ end trace 0000000000000000 ]---
[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[    0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---

Link: https://lkml.kernel.org/r/20250819075510.2079961-1-yintirui@huawei.com
Fixes: 767507654c22 ("arch_numa: switch over to numa_memblks")
Signed-off-by: Yin Tirui &lt;yintirui@huawei.com&gt;
Acked-by: David Hildenbrand &lt;david@redhat.com&gt;
Acked-by: Mike Rapoport (Microsoft) &lt;rppt@kernel.org&gt;
Reviewed-by: Kefeng Wang &lt;wangkefeng.wang@huawei.com&gt;
Cc: Chen Jun &lt;chenjun102@huawei.com&gt;
Cc: Dan Williams &lt;dan.j.williams@intel.com&gt;
Cc: Joanthan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
Cc: Rob Herring &lt;robh@kernel.org&gt;
Cc: Saravana Kannan &lt;saravanak@google.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
