<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/arch/arm, branch v5.4.49</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>ARM: dts: sun8i-h2-plus-bananapi-m2-zero: Fix led polarity</title>
<updated>2020-06-24T15:50:20+00:00</updated>
<author>
<name>Vincent Stehlé</name>
<email>vincent.stehle@laposte.net</email>
</author>
<published>2020-04-11T17:48:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=7acbadd1aa294b422657f90d3349f20c06dae541'/>
<id>7acbadd1aa294b422657f90d3349f20c06dae541</id>
<content type='text'>
[ Upstream commit 34b6826df7462c541752cf8b1de2691b26d78ae0 ]

The PWR-LED on the bananapi m2 zero board is on when gpio PL10 is low.
This has been verified on a board and in the schematics [1].

[1]: http://wiki.banana-pi.org/Banana_Pi_BPI-M2_ZERO#Documents

Fixes: 8b8061fcbfae ("ARM: dts: sun8i: h2+: add support for Banana Pi M2 Zero board")
Signed-off-by: Vincent Stehlé &lt;vincent.stehle@laposte.net&gt;
Cc: Icenowy Zheng &lt;icenowy@aosc.io&gt;
Cc: Maxime Ripard &lt;mripard@kernel.org&gt;
Signed-off-by: Maxime Ripard &lt;maxime@cerno.tech&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 34b6826df7462c541752cf8b1de2691b26d78ae0 ]

The PWR-LED on the bananapi m2 zero board is on when gpio PL10 is low.
This has been verified on a board and in the schematics [1].

[1]: http://wiki.banana-pi.org/Banana_Pi_BPI-M2_ZERO#Documents

Fixes: 8b8061fcbfae ("ARM: dts: sun8i: h2+: add support for Banana Pi M2 Zero board")
Signed-off-by: Vincent Stehlé &lt;vincent.stehle@laposte.net&gt;
Cc: Icenowy Zheng &lt;icenowy@aosc.io&gt;
Cc: Maxime Ripard &lt;mripard@kernel.org&gt;
Signed-off-by: Maxime Ripard &lt;maxime@cerno.tech&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>arm64: dts: fvp/juno: Fix node address fields</title>
<updated>2020-06-24T15:50:15+00:00</updated>
<author>
<name>Andre Przywara</name>
<email>andre.przywara@arm.com</email>
</author>
<published>2020-05-13T10:29:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=24911d387b840464356be309a5362bcb322a8302'/>
<id>24911d387b840464356be309a5362bcb322a8302</id>
<content type='text'>
[ Upstream commit bb5cce12ac717c7462217cd493ed701d12d6dbce ]

The Arm Ltd. boards were using an outdated address convention in the DT
node names, by separating the high from the low 32-bits of an address by
a comma.

Remove the comma from the node name suffix to be DT spec compliant.

Link: https://lore.kernel.org/r/20200513103016.130417-3-andre.przywara@arm.com
Signed-off-by: Andre Przywara &lt;andre.przywara@arm.com&gt;
Signed-off-by: Sudeep Holla &lt;sudeep.holla@arm.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit bb5cce12ac717c7462217cd493ed701d12d6dbce ]

The Arm Ltd. boards were using an outdated address convention in the DT
node names, by separating the high from the low 32-bits of an address by
a comma.

Remove the comma from the node name suffix to be DT spec compliant.

Link: https://lore.kernel.org/r/20200513103016.130417-3-andre.przywara@arm.com
Signed-off-by: Andre Przywara &lt;andre.przywara@arm.com&gt;
Signed-off-by: Sudeep Holla &lt;sudeep.holla@arm.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: dts: stm32: Add missing ethernet PHY reset on AV96</title>
<updated>2020-06-24T15:50:10+00:00</updated>
<author>
<name>Marek Vasut</name>
<email>marex@denx.de</email>
</author>
<published>2020-04-22T10:45:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=bde2d5d443c436a046591521d50441e2d1020150'/>
<id>bde2d5d443c436a046591521d50441e2d1020150</id>
<content type='text'>
[ Upstream commit 010ca9fe500bfe365860b50220ff80541c18f0e1 ]

Add PHY reset GPIO on AV96 ethernet PHY.

Reviewed-by: Manivannan Sadhasivam &lt;manivannan.sadhasivam@linaro.org&gt;
Signed-off-by: Marek Vasut &lt;marex@denx.de&gt;
Cc: Alexandre Torgue &lt;alexandre.torgue@st.com&gt;
Cc: Manivannan Sadhasivam &lt;manivannan.sadhasivam@linaro.org&gt;
Cc: Maxime Coquelin &lt;mcoquelin.stm32@gmail.com&gt;
Cc: Patrice Chotard &lt;patrice.chotard@st.com&gt;
Cc: Patrick Delaunay &lt;patrick.delaunay@st.com&gt;
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue &lt;alexandre.torgue@st.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 010ca9fe500bfe365860b50220ff80541c18f0e1 ]

Add PHY reset GPIO on AV96 ethernet PHY.

Reviewed-by: Manivannan Sadhasivam &lt;manivannan.sadhasivam@linaro.org&gt;
Signed-off-by: Marek Vasut &lt;marex@denx.de&gt;
Cc: Alexandre Torgue &lt;alexandre.torgue@st.com&gt;
Cc: Manivannan Sadhasivam &lt;manivannan.sadhasivam@linaro.org&gt;
Cc: Maxime Coquelin &lt;mcoquelin.stm32@gmail.com&gt;
Cc: Patrice Chotard &lt;patrice.chotard@st.com&gt;
Cc: Patrick Delaunay &lt;patrick.delaunay@st.com&gt;
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue &lt;alexandre.torgue@st.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: integrator: Add some Kconfig selections</title>
<updated>2020-06-24T15:50:10+00:00</updated>
<author>
<name>Linus Walleij</name>
<email>linus.walleij@linaro.org</email>
</author>
<published>2020-02-13T14:27:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=38ede4d7736ee504c62325fc3e1486a514d719c1'/>
<id>38ede4d7736ee504c62325fc3e1486a514d719c1</id>
<content type='text'>
[ Upstream commit d2854bbe5f5c4b4bec8061caf4f2e603d8819446 ]

The CMA and DMA_CMA Kconfig options need to be selected
by the Integrator in order to produce boot console on some
Integrator systems.

The REGULATOR and REGULATOR_FIXED_VOLTAGE need to be
selected in order to boot the system from an external
MMC card when using MMCI/PL181 from the device tree
probe path.

Select these things directly from the Kconfig so we are
sure to be able to bring the systems up with console
from any device tree.

Signed-off-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit d2854bbe5f5c4b4bec8061caf4f2e603d8819446 ]

The CMA and DMA_CMA Kconfig options need to be selected
by the Integrator in order to produce boot console on some
Integrator systems.

The REGULATOR and REGULATOR_FIXED_VOLTAGE need to be
selected in order to boot the system from an external
MMC card when using MMCI/PL181 from the device tree
probe path.

Select these things directly from the Kconfig so we are
sure to be able to bring the systems up with console
from any device tree.

Signed-off-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: dts: renesas: Fix IOMMU device node names</title>
<updated>2020-06-24T15:50:09+00:00</updated>
<author>
<name>Yoshihiro Shimoda</name>
<email>yoshihiro.shimoda.uh@renesas.com</email>
</author>
<published>2020-04-21T09:35:56+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=8908c555e06e5ccb56869a405d9e22caffad646c'/>
<id>8908c555e06e5ccb56869a405d9e22caffad646c</id>
<content type='text'>
[ Upstream commit ae990a1de014396ffc8d0fcc31b6888c9b0ce59a ]

Fix IOMMU device node names as "iommu@".

Fixes: bbb44da0b595 ("ARM: dts: r8a7743: Add IPMMU DT nodes")
Fixes: 0dcba3de5835 ("ARM: dts: r8a7745: Add IPMMU DT nodes")
Fixes: 350ae49b97c4 ("ARM: dts: r8a7744: Add IPMMU DT nodes")
Fixes: 70496727c082 ("ARM: shmobile: r8a7790: Add IPMMU DT nodes")
Fixes: f1951852ed17 ("ARM: shmobile: r8a7791: Add IPMMU DT nodes")
Fixes: 098cb3a601e6 ("ARM: shmobile: r8a7793: Add IPMMU nodes")
Fixes: 1cb2794f6082 ("ARM: shmobile: r8a7794: Add IPMMU DT nodes")
Signed-off-by: Yoshihiro Shimoda &lt;yoshihiro.shimoda.uh@renesas.com&gt;
Reviewed-by: Niklas Söderlund &lt;niklas.soderlund+renesas@ragnatech.se&gt;
Link: https://lore.kernel.org/r/1587461756-13317-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven &lt;geert+renesas@glider.be&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit ae990a1de014396ffc8d0fcc31b6888c9b0ce59a ]

Fix IOMMU device node names as "iommu@".

Fixes: bbb44da0b595 ("ARM: dts: r8a7743: Add IPMMU DT nodes")
Fixes: 0dcba3de5835 ("ARM: dts: r8a7745: Add IPMMU DT nodes")
Fixes: 350ae49b97c4 ("ARM: dts: r8a7744: Add IPMMU DT nodes")
Fixes: 70496727c082 ("ARM: shmobile: r8a7790: Add IPMMU DT nodes")
Fixes: f1951852ed17 ("ARM: shmobile: r8a7791: Add IPMMU DT nodes")
Fixes: 098cb3a601e6 ("ARM: shmobile: r8a7793: Add IPMMU nodes")
Fixes: 1cb2794f6082 ("ARM: shmobile: r8a7794: Add IPMMU DT nodes")
Signed-off-by: Yoshihiro Shimoda &lt;yoshihiro.shimoda.uh@renesas.com&gt;
Reviewed-by: Niklas Söderlund &lt;niklas.soderlund+renesas@ragnatech.se&gt;
Link: https://lore.kernel.org/r/1587461756-13317-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven &lt;geert+renesas@glider.be&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: dts: s5pv210: Set keep-power-in-suspend for SDHCI1 on Aries</title>
<updated>2020-06-22T07:31:22+00:00</updated>
<author>
<name>Jonathan Bakker</name>
<email>xc-racer2@live.ca</email>
</author>
<published>2020-05-01T23:50:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1d5144d7dc5db8c57174771945dc1d6c4266e8b2'/>
<id>1d5144d7dc5db8c57174771945dc1d6c4266e8b2</id>
<content type='text'>
commit 869d42e6eba821905e1a0950623aadafe1a6e6d3 upstream.

SDHCI1 is connected to a BCM4329 WiFi/BT chip which requires
power to be kept over suspend.  As the surrounding hardware supports
this, mark it as such.  This fixes WiFi after a suspend/resume cycle.

Fixes: 170642468a51 ("ARM: dts: s5pv210: Add initial DTS for Samsung Aries based phones")
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Jonathan Bakker &lt;xc-racer2@live.ca&gt;
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 869d42e6eba821905e1a0950623aadafe1a6e6d3 upstream.

SDHCI1 is connected to a BCM4329 WiFi/BT chip which requires
power to be kept over suspend.  As the surrounding hardware supports
this, mark it as such.  This fixes WiFi after a suspend/resume cycle.

Fixes: 170642468a51 ("ARM: dts: s5pv210: Add initial DTS for Samsung Aries based phones")
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Jonathan Bakker &lt;xc-racer2@live.ca&gt;
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: dts: at91: sama5d2_ptc_ek: fix vbus pin</title>
<updated>2020-06-22T07:31:22+00:00</updated>
<author>
<name>Ludovic Desroches</name>
<email>ludovic.desroches@microchip.com</email>
</author>
<published>2020-04-01T22:19:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=727111d44a591bdce3b4dc6e3d32c752e90da757'/>
<id>727111d44a591bdce3b4dc6e3d32c752e90da757</id>
<content type='text'>
commit baa998aecb75c04d62be0a4ab6b724af6d73a0f9 upstream.

The gpio property for the vbus pin doesn't match the pinctrl and is
not correct.

Signed-off-by: Ludovic Desroches &lt;ludovic.desroches@microchip.com&gt;
Fixes: 42ed535595ec "ARM: dts: at91: introduce the sama5d2 ptc ek board"
Cc: stable@vger.kernel.org # 4.19 and later
Link: https://lore.kernel.org/r/20200401221947.41502-1-ludovic.desroches@microchip.com
Signed-off-by: Alexandre Belloni &lt;alexandre.belloni@bootlin.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit baa998aecb75c04d62be0a4ab6b724af6d73a0f9 upstream.

The gpio property for the vbus pin doesn't match the pinctrl and is
not correct.

Signed-off-by: Ludovic Desroches &lt;ludovic.desroches@microchip.com&gt;
Fixes: 42ed535595ec "ARM: dts: at91: introduce the sama5d2 ptc ek board"
Cc: stable@vger.kernel.org # 4.19 and later
Link: https://lore.kernel.org/r/20200401221947.41502-1-ludovic.desroches@microchip.com
Signed-off-by: Alexandre Belloni &lt;alexandre.belloni@bootlin.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: dts: exynos: Fix GPIO polarity for thr GalaxyS3 CM36651 sensor's bus</title>
<updated>2020-06-22T07:31:22+00:00</updated>
<author>
<name>Marek Szyprowski</name>
<email>m.szyprowski@samsung.com</email>
</author>
<published>2020-03-26T14:20:37+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1bfcafbb4d1e93a1bb14978dcef84b1179cffe59'/>
<id>1bfcafbb4d1e93a1bb14978dcef84b1179cffe59</id>
<content type='text'>
commit 8807d356bfea92b0a8f04ce421800ed83400cd22 upstream.

GPIO lines for the CM36651 sensor I2C bus use the normal not the inverted
polarity. This bug has been there since adding the CM36651 sensor by
commit 85cb4e0bd229 ("ARM: dts: add cm36651 light/proximity sensor node
for exynos4412-trats2"), but went unnoticed because the "i2c-gpio"
driver ignored the GPIO polarity specified in the device-tree.

The recent conversion of "i2c-gpio" driver to the new, descriptor based
GPIO API, automatically made it the DT-specified polarity aware, what
broke the CM36651 sensor operation.

Fixes: 85cb4e0bd229 ("ARM: dts: add cm36651 light/proximity sensor node for exynos4412-trats2")
CC: stable@vger.kernel.org # 4.16+
Signed-off-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 8807d356bfea92b0a8f04ce421800ed83400cd22 upstream.

GPIO lines for the CM36651 sensor I2C bus use the normal not the inverted
polarity. This bug has been there since adding the CM36651 sensor by
commit 85cb4e0bd229 ("ARM: dts: add cm36651 light/proximity sensor node
for exynos4412-trats2"), but went unnoticed because the "i2c-gpio"
driver ignored the GPIO polarity specified in the device-tree.

The recent conversion of "i2c-gpio" driver to the new, descriptor based
GPIO API, automatically made it the DT-specified polarity aware, what
broke the CM36651 sensor operation.

Fixes: 85cb4e0bd229 ("ARM: dts: add cm36651 light/proximity sensor node for exynos4412-trats2")
CC: stable@vger.kernel.org # 4.16+
Signed-off-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: tegra: Correct PL310 Auxiliary Control Register initialization</title>
<updated>2020-06-22T07:31:22+00:00</updated>
<author>
<name>Dmitry Osipenko</name>
<email>digetx@gmail.com</email>
</author>
<published>2020-03-13T09:01:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=be20b99a86b3dcdaa594867f468de3ef3a9bcda3'/>
<id>be20b99a86b3dcdaa594867f468de3ef3a9bcda3</id>
<content type='text'>
commit 35509737c8f958944e059d501255a0bf18361ba0 upstream.

The PL310 Auxiliary Control Register shouldn't have the "Full line of
zero" optimization bit being set before L2 cache is enabled. The L2X0
driver takes care of enabling the optimization by itself.

This patch fixes a noisy error message on Tegra20 and Tegra30 telling
that cache optimization is erroneously enabled without enabling it for
the CPU:

	L2C-310: enabling full line of zeros but not enabled in Cortex-A9

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Dmitry Osipenko &lt;digetx@gmail.com&gt;
Tested-by: Nicolas Chauvet &lt;kwizart@gmail.com&gt;
Signed-off-by: Thierry Reding &lt;treding@nvidia.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 35509737c8f958944e059d501255a0bf18361ba0 upstream.

The PL310 Auxiliary Control Register shouldn't have the "Full line of
zero" optimization bit being set before L2 cache is enabled. The L2X0
driver takes care of enabling the optimization by itself.

This patch fixes a noisy error message on Tegra20 and Tegra30 telling
that cache optimization is erroneously enabled without enabling it for
the CPU:

	L2C-310: enabling full line of zeros but not enabled in Cortex-A9

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Dmitry Osipenko &lt;digetx@gmail.com&gt;
Tested-by: Nicolas Chauvet &lt;kwizart@gmail.com&gt;
Signed-off-by: Thierry Reding &lt;treding@nvidia.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: 8978/1: mm: make act_mm() respect THREAD_SIZE</title>
<updated>2020-06-22T07:30:56+00:00</updated>
<author>
<name>Linus Walleij</name>
<email>linus.walleij@linaro.org</email>
</author>
<published>2020-05-19T11:59:12+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=8cf93ef213f9c335e38db44a2c0b5ed44a146ec7'/>
<id>8cf93ef213f9c335e38db44a2c0b5ed44a146ec7</id>
<content type='text'>
[ Upstream commit e1de94380af588bdf6ad6f0cc1f75004c35bc096 ]

Recent work with KASan exposed the folling hard-coded bitmask
in arch/arm/mm/proc-macros.S:

  bic     rd, sp, #8128
  bic     rd, rd, #63

This forms the bitmask 0x1FFF that is coinciding with
(PAGE_SIZE &lt;&lt; THREAD_SIZE_ORDER) - 1, this code was assuming
that THREAD_SIZE is always 8K (8192).

As KASan was increasing THREAD_SIZE_ORDER to 2, I ran into
this bug.

Fix it by this little oneline suggested by Ard:

  bic     rd, sp, #(THREAD_SIZE - 1) &amp; ~63

Where THREAD_SIZE is defined using THREAD_SIZE_ORDER.

We have to also include &lt;linux/const.h&gt; since the THREAD_SIZE
expands to use the _AC() macro.

Cc: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Cc: Florian Fainelli &lt;f.fainelli@gmail.com&gt;
Suggested-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Signed-off-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
Signed-off-by: Russell King &lt;rmk+kernel@armlinux.org.uk&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
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[ Upstream commit e1de94380af588bdf6ad6f0cc1f75004c35bc096 ]

Recent work with KASan exposed the folling hard-coded bitmask
in arch/arm/mm/proc-macros.S:

  bic     rd, sp, #8128
  bic     rd, rd, #63

This forms the bitmask 0x1FFF that is coinciding with
(PAGE_SIZE &lt;&lt; THREAD_SIZE_ORDER) - 1, this code was assuming
that THREAD_SIZE is always 8K (8192).

As KASan was increasing THREAD_SIZE_ORDER to 2, I ran into
this bug.

Fix it by this little oneline suggested by Ard:

  bic     rd, sp, #(THREAD_SIZE - 1) &amp; ~63

Where THREAD_SIZE is defined using THREAD_SIZE_ORDER.

We have to also include &lt;linux/const.h&gt; since the THREAD_SIZE
expands to use the _AC() macro.

Cc: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Cc: Florian Fainelli &lt;f.fainelli@gmail.com&gt;
Suggested-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Signed-off-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
Signed-off-by: Russell King &lt;rmk+kernel@armlinux.org.uk&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
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