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[ Upstream commit 3db1d52466dc11dca4e47ef12a6e6e97f846af62 ]
In "tx_empty", we should poll TC bit in both DMA and PIO modes (instead of
TXE) to check transmission data register has been transmitted independently
of the FIFO mode. TC indicates that both transmit register and shift
register are empty. When shift register is empty, tx_empty should return
TIOCSER_TEMT instead of TC value.
Cleans the USART_CR_TC TCCF register define (transmission complete clear
flag) as it is duplicate of USART_ICR_TCCF.
Fixes: 48a6092fb41f ("serial: stm32-usart: Add STM32 USART Driver")
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Link: https://lore.kernel.org/r/20210304162308.8984-13-erwan.leray@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f264c6f6aece81a9f8fbdf912b20bd3feb476a7a ]
Incorrect characters are observed on console during boot. This issue occurs
when init/main.c is modifying termios settings to open /dev/console on the
rootfs.
This patch adds a waiting loop in set_termios to wait for TX shift register
empty (and TX FIFO if any) before stopping serial port.
Fixes: 48a6092fb41f ("serial: stm32-usart: Add STM32 USART Driver")
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Link: https://lore.kernel.org/r/20210304162308.8984-4-erwan.leray@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 8987efbb17c2522be8615085df9a14da2ab53d34 ]
The Maxim PMIC datasheets describe the interrupt line as active low
with a requirement of acknowledge from the CPU. Without specifying the
interrupt type in Devicetree, kernel might apply some fixed
configuration, not necessarily working for this hardware.
Additionally, the interrupt line is shared so using level sensitive
interrupt is here especially important to avoid races.
Fixes: c61248afa819 ("ARM: dts: Add max77686 RTC interrupt to cros5250-common")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-9-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f6368c60561370e4a92fac22982a3bd656172170 ]
The Maxim PMIC datasheets describe the interrupt line as active low
with a requirement of acknowledge from the CPU. Without specifying the
interrupt type in Devicetree, kernel might apply some fixed
configuration, not necessarily working for this hardware.
Additionally, the interrupt line is shared so using level sensitive
interrupt is here especially important to avoid races.
Fixes: 47580e8d94c2 ("ARM: dts: Specify MAX77686 pmic interrupt for exynos5250-smdk5250")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-8-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6503c568e97a52f8b7a3109718db438e52e59485 ]
The Maxim PMIC datasheets describe the interrupt line as active low
with a requirement of acknowledge from the CPU. Without specifying the
interrupt type in Devicetree, kernel might apply some fixed
configuration, not necessarily working for this hardware.
Additionally, the interrupt line is shared so using level sensitive
interrupt is here especially important to avoid races.
Fixes: eea6653aae7b ("ARM: dts: Enable PMIC interrupts for exynos4412-odroid-common")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-6-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e52dcd6e70fab51f53292e53336ecb007bb60889 ]
The Maxim PMIC datasheets describe the interrupt line as active low
with a requirement of acknowledge from the CPU. Without specifying the
interrupt type in Devicetree, kernel might apply some fixed
configuration, not necessarily working for this hardware.
Additionally, the interrupt line is shared so using level sensitive
interrupt is here especially important to avoid races.
Fixes: 15dfdfad2d4a ("ARM: dts: Add basic dts for Exynos4412-based Trats 2 board")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-5-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 15107e443ab8c6cb35eff10438993e4bc944d9ae ]
The Maxim MUIC datasheets describe the interrupt line as active low
with a requirement of acknowledge from the CPU. Without specifying the
interrupt type in Devicetree, kernel might apply some fixed
configuration, not necessarily working for this hardware.
Additionally, the interrupt line is shared so using level sensitive
interrupt is here especially important to avoid races.
Fixes: 7eec1266751b ("ARM: dts: Add Maxim 77693 PMIC to exynos4412-trats2")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-4-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 8a45f33bd36efbb624198cfa9fdf1f66fd1c3d26 ]
The Maxim fuel gauge datasheets describe the interrupt line as active
low with a requirement of acknowledge from the CPU. The falling edge
interrupt will mostly work but it's not correct.
Fixes: e8614292cd41 ("ARM: dts: Add Maxim 77693 fuel gauge node for exynos4412-trats2")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-3-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e004c3e67b6459c99285b18366a71af467d869f5 ]
Currently the array gpmc_cs is indexed by cs before it cs is range checked
and the pointer read from this out-of-index read is dereferenced. Fix this
by performing the range check on cs before the read and the following
pointer dereference.
Addresses-Coverity: ("Negative array index read")
Fixes: 9ed7a776eb50 ("ARM: OMAP2+: Fix support for multiple devices on a GPMC chip select")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210223193821.17232-1-colin.king@canonical.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 50a318cc9b54a36f00beadf77e578a50f3620477 upstream.
The commit d3cb25a12138 ("usb: gadget: udc: fix spin_lock in pch_udc")
obviously was not thought through and had made the situation even worse
than it was before. Two changes after almost reverted it. but a few
leftovers have been left as it. With this revert d3cb25a12138 completely.
While at it, narrow down the scope of unlocked section to prevent
potential race when prot_stall is assigned.
Fixes: d3cb25a12138 ("usb: gadget: udc: fix spin_lock in pch_udc")
Fixes: 9903b6bedd38 ("usb: gadget: pch-udc: fix lock")
Fixes: 1d23d16a88e6 ("usb: gadget: pch_udc: reorder spin_[un]lock to avoid deadlock")
Cc: Iago Abal <mail@iagoabal.eu>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210323153626.54908-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 7b279bbfd2b230c7a210ff8f405799c7e46bbf48 upstream.
Smatch complains about missing that the ovl_override_creds() doesn't
have a matching revert_creds() if the dentry is disconnected. Fix this
by moving the ovl_override_creds() until after the disconnected check.
Fixes: aa3ff3c152ff ("ovl: copy up of disconnected dentries")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 5d3c4c79384af06e3c8e25b7770b6247496b4417 upstream.
Abort the walk of coalesced MMIO zones if kvm_io_bus_unregister_dev()
fails to allocate memory for the new instance of the bus. If it can't
instantiate a new bus, unregister_dev() destroys all devices _except_ the
target device. But, it doesn't tell the caller that it obliterated the
bus and invoked the destructor for all devices that were on the bus. In
the coalesced MMIO case, this can result in a deleted list entry
dereference due to attempting to continue iterating on coalesced_zones
after future entries (in the walk) have been deleted.
Opportunistically add curly braces to the for-loop, which encompasses
many lines but sneaks by without braces due to the guts being a single
if statement.
Fixes: f65886606c2d ("KVM: fix memory leak in kvm_io_bus_unregister_dev()")
Cc: stable@vger.kernel.org
Reported-by: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210412222050.876100-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit ee050a577523dfd5fac95e6cc182ebe0293ead59 upstream.
Drop bits 63:32 of the VMCS field encoding when checking for a nested
VM-Exit on VMREAD/VMWRITE in !64-bit mode. VMREAD and VMWRITE always
use 32-bit operands outside of 64-bit mode.
The actual emulation of VMREAD/VMWRITE does the right thing, this bug is
purely limited to incorrectly causing a nested VM-Exit if a GPR happens
to have bits 63:32 set outside of 64-bit mode.
Fixes: a7cde481b6e8 ("KVM: nVMX: Do not forward VMREAD/VMWRITE VMExits to L1 if required so by vmcs12 vmread/vmwrite bitmaps")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210422022128.3464144-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit c5d1f6b531e68888cbe6718b3f77a60115d58b9c upstream.
A new function _kvm_s390_real_to_abs will apply prefixing to a real address
with a given prefix value.
The old kvm_s390_real_to_abs becomes now a wrapper around the new function.
This is needed to avoid code duplication in vSIE.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210322140559.500716-2-imbrenda@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b208108638c4bd3215792415944467c36f5dfd97 upstream.
The PoP documents:
134: The vector packed decimal facility is installed in the
z/Architecture architectural mode. When bit 134 is
one, bit 129 is also one.
135: The vector enhancements facility 1 is installed in
the z/Architecture architectural mode. When bit 135
is one, bit 129 is also one.
Looks like we confuse the vector enhancements facility 1 ("EXT") with the
Vector packed decimal facility ("BCD"). Let's fix the facility checks.
Detected while working on QEMU/tcg z14 support and only unlocking
the vector enhancements facility 1, but not the vector packed decimal
facility.
Fixes: 2583b848cad0 ("s390: report new vector facilities")
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20210503121244.25232-1-david@redhat.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 44bada28219031f9e8e86b84460606efa57b871e upstream.
store_regs_fmt2() has an ordering problem: first the guarded storage
facility is enabled on the local cpu, then preemption disabled, and
then the STGSC (store guarded storage controls) instruction is
executed.
If the process gets scheduled away between enabling the guarded
storage facility and before preemption is disabled, this might lead to
a special operation exception and therefore kernel crash as soon as
the process is scheduled back and the STGSC instruction is executed.
Fixes: 4e0b1ab72b8a ("KVM: s390: gs support for kvm guests")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Cc: <stable@vger.kernel.org> # 4.12
Link: https://lore.kernel.org/r/20210415080127.1061275-1-hca@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f85f1baaa18932a041fd2b1c2ca6cfd9898c7d2b upstream.
Split kvm_s390_logical_to_effective to a generic function called
_kvm_s390_logical_to_effective. The new function takes a PSW and an address
and returns the address with the appropriate bits masked off. The old
function now calls the new function with the appropriate PSW from the vCPU.
This is needed to avoid code duplication for vSIE.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: stable@vger.kernel.org # for VSIE: correctly handle MVPG when in VSIE
Link: https://lore.kernel.org/r/20210302174443.514363-2-imbrenda@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 266fd994b2b0ab7ba3e5541868838ce30775964b upstream.
In 9bbb94e57df1 ("ALSA: hda/realtek: fix static noise on ALC285 Lenovo
laptops") an existing Lenovo quirk was made more generic by removing a
0x12 pin requirement from the entry. This made the second chance table
Thinkpad jack entry unreachable as the pin configurations became
identical.
Revert the 0x12 pin requirement removal and move Thinkpad jack pin quirk
back to the primary pin table as they can co-exist when more specific
configurations come first.
Add a more targeted pin quirk for Lenovo devices that have 0x12 as
0x40000000.
Tested on Yoga 6 (AMD) laptop.
[ Corrected the commit ID -- tiwai ]
Fixes: 9bbb94e57df1 ("ALSA: hda/realtek: fix static noise on ALC285 Lenovo laptops")
Signed-off-by: Sami Loone <sami@loone.fi>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/YI0oefvTYn8URYDb@yoga
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit defce244b01ee12534910a4544e11be5eb927d25 upstream.
The quirk entry for Uniwill ECS M31EI is with the PCI SSID device 0,
which means matching with all. That is, it's essentially equivalent
with SND_PCI_QUIRK_VENDOR(0x1584), which also matches with the
previous entry for Haier W18 applying the very same quirk.
Let's unify them with the single vendor-quirk entry.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-13-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 9edeb1109d05953b2f0e24e5b2341a98c3fa78d5 upstream.
Just re-order the alc662_fixup_tbl[] entries for Acer and ASUS devices
for avoiding the oversight of the duplicated or unapplied item in
future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-12-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit c656f747df151a0a89756a5312f4ca2116758ba4 upstream.
Just re-order the alc269_fixup_tbl[] entries for FSC, Medion, Samsung
and Lemote devices for avoiding the oversight of the duplicated or
unapplied item in future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-11-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f552ff54c2a700616a02b038e4bf3cbf859f65b7 upstream.
Just re-order the alc269_fixup_tbl[] entries for Lenovo devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit cab561f8d4bc9b196ae20c960aa5da89fd786ab5 upstream.
Just re-order the alc269_fixup_tbl[] entries for Sony devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3cd0ed636dd19e7fbe3ebe8de8476e1718d5a8f1 upstream.
Just re-order the alc269_fixup_tbl[] entries for ASUS devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit aa143ad39a52d968ac69e426d329bb74f270e6ca upstream.
Just re-order the alc269_fixup_tbl[] entries for Dell devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 433f894ec7fbd3b4bf1f3187b2ddd566078c4aef upstream.
Just re-order the alc269_fixup_tbl[] entries for Acer devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 45461e3b554c75ddff9703539f3711cc3dfb0422 upstream.
Just re-order the alc269_fixup_tbl[] entries for HP devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Formerly, some entries were grouped for the actual codec, but this
doesn't seem reasonable to keep in that way. So now we simply keep
the PCI SSID order for the whole.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 13e1a4cd490b959a4c72c9f4fb502ef56b190062 upstream.
Just re-order the alc882_fixup_tbl[] entries for Clevo devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Also, user lower hex letters in the entry.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b7529c18feecb1af92f9db08c8e7fe446a82d96d upstream.
Just re-order the alc882_fixup_tbl[] entries for Sony devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b265047ac56bad8c4f3d0c8bf9cb4e828ee0d28e upstream.
Just re-order the alc882_fixup_tbl[] entries for Acer devices for
avoiding the oversight of the duplicated or unapplied item in future.
No functional changes.
Also Cc-to-stable for the further patch applications.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit d89f6048bdcb6a56abb396c584747d5eeae650db upstream.
[Why]
This hasn't been well tested and leads to complete system hangs on DCN1
based systems, possibly others.
The system hang can be reproduced by gesturing the video on the YouTube
Android app on ChromeOS into full screen.
[How]
Reject atomic commits with non-zero drm_plane_state.src_x or src_y values.
v2:
- Add code comment describing the reason we're rejecting non-zero
src_x and src_y
- Drop gerrit Change-Id
- Add stable CC
- Based on amd-staging-drm-next
v3: removed trailing whitespace
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Cc: stable@vger.kernel.org
Cc: nicholas.kazlauskas@amd.com
Cc: amd-gfx@lists.freedesktop.org
Cc: alexander.deucher@amd.com
Cc: Roman.Li@amd.com
Cc: hersenxs.wu@amd.com
Cc: danny.wang@amd.com
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 8dbc2ccac5a65c5b57e3070e36a3dc97c7970d96 upstream.
Currently the ioctl command RADEON_INFO_SI_BACKEND_ENABLED_MASK can
copy back uninitialised data in value_tmp that pointer *value points
to. This can occur when rdev->family is less than CHIP_BONAIRE and
less than CHIP_TAHITI. Fix this by adding in a missing -EINVAL
so that no invalid value is copied back to userspace.
Addresses-Coverity: ("Uninitialized scalar variable)
Cc: stable@vger.kernel.org # 3.13+
Fixes: 439a1cfffe2c ("drm/radeon: expose render backend mask to the userspace")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f45da8204ff1707c529a8769f5467ff16f504b26 upstream.
We allocate 2MB chunks at a time, so it might appear that a page fault
has already been handled by a previous page fault when we reach
panfrost_mmu_map_fault_addr(). Bail out in that case to avoid mapping the
same area twice.
Cc: <stable@vger.kernel.org>
Fixes: 187d2929206e ("drm/panfrost: Add support for GPU heap allocations")
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210205111757.585248-3-boris.brezillon@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3aa0a80fc692c9959c261f4c5bfe9c23ddd90562 upstream.
When a fault is handled it will unblock the GPU which will continue
executing its shader and might fault almost immediately on a different
page. If we clear interrupts after handling the fault we might miss new
faults, so clear them before.
Cc: <stable@vger.kernel.org>
Fixes: 187d2929206e ("drm/panfrost: Add support for GPU heap allocations")
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210205111757.585248-2-boris.brezillon@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 2ff25985ea9ccc6c9af2c77b0b49045adcc62e0e upstream.
Using a kernel with the Undefined Behaviour Sanity Checker (UBSAN) enabled, the
following array overrun is logged:
================================================================================
UBSAN: array-index-out-of-bounds in /home/finger/wireless-drivers-next/drivers/net/wireless/realtek/rtw88/phy.c:1789:34
index 5 is out of range for type 'u8 [5]'
CPU: 2 PID: 84 Comm: kworker/u16:3 Tainted: G O 5.12.0-rc5-00086-gd88bba47038e-dirty #651
Hardware name: TOSHIBA TECRA A50-A/TECRA A50-A, BIOS Version 4.50 09/29/2014
Workqueue: phy0 ieee80211_scan_work [mac80211]
Call Trace:
dump_stack+0x64/0x7c
ubsan_epilogue+0x5/0x40
__ubsan_handle_out_of_bounds.cold+0x43/0x48
rtw_get_tx_power_params+0x83a/drivers/net/wireless/realtek/rtw88/0xad0 [rtw_core]
? rtw_pci_read16+0x20/0x20 [rtw_pci]
? check_hw_ready+0x50/0x90 [rtw_core]
rtw_phy_get_tx_power_index+0x4d/0xd0 [rtw_core]
rtw_phy_set_tx_power_level+0xee/0x1b0 [rtw_core]
rtw_set_channel+0xab/0x110 [rtw_core]
rtw_ops_config+0x87/0xc0 [rtw_core]
ieee80211_hw_config+0x9d/0x130 [mac80211]
ieee80211_scan_state_set_channel+0x81/0x170 [mac80211]
ieee80211_scan_work+0x19f/0x2a0 [mac80211]
process_one_work+0x1dd/0x3a0
worker_thread+0x49/0x330
? rescuer_thread+0x3a0/0x3a0
kthread+0x134/0x150
? kthread_create_worker_on_cpu+0x70/0x70
ret_from_fork+0x22/0x30
================================================================================
The statement where an array is being overrun is shown in the following snippet:
if (rate <= DESC_RATE11M)
tx_power = pwr_idx_2g->cck_base[group];
else
====> tx_power = pwr_idx_2g->bw40_base[group];
The associated arrays are defined in main.h as follows:
struct rtw_2g_txpwr_idx {
u8 cck_base[6];
u8 bw40_base[5];
struct rtw_2g_1s_pwr_idx_diff ht_1s_diff;
struct rtw_2g_ns_pwr_idx_diff ht_2s_diff;
struct rtw_2g_ns_pwr_idx_diff ht_3s_diff;
struct rtw_2g_ns_pwr_idx_diff ht_4s_diff;
};
The problem arises because the value of group is 5 for channel 14. The trivial
increase in the dimension of bw40_base fails as this struct must match the layout of
efuse. The fix is to add the rate as an argument to rtw_get_channel_group() and set
the group for channel 14 to 4 if rate <= DESC_RATE11M.
This patch fixes commit fa6dfe6bff24 ("rtw88: resolve order of tx power setting routines")
Fixes: fa6dfe6bff24 ("rtw88: resolve order of tx power setting routines")
Reported-by: Богдан Пилипенко <bogdan.pylypenko107@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210401192717.28927-1-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 010bfbe768f7ecc876ffba92db30432de4997e2a upstream.
If we overflow the maximum number of BSS entries and free the
new entry, drop it from any hidden_list that it may have been
added to in the code above or in cfg80211_combine_bsses().
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210416094212.5de7d1676ad7.Ied283b0bc5f504845e7d6ab90626bdfa68bb3dc0@changeid
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 260a9ad9446723d4063ed802989758852809714d upstream.
The "ext->key_len" is a u16 that comes from the user. If it's over
SCM_KEY_LEN (32) that could lead to memory corruption.
Fixes: e0d369d1d969 ("[PATCH] ieee82011: Added WE-18 support to default wireless extension handler")
Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YHaoA1i+8uT4ir4h@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 7abfabaf5f805f5171d133ce6af9b65ab766e76a upstream.
Reading /proc/mdstat with a read buffer size that would not
fit the unused status line in the first read will skip this
line from the output.
So 'dd if=/proc/mdstat bs=64 2>/dev/null' will not print something
like: unused devices: <none>
Don't return NULL immediately in start() for v=2 but call
show() once to print the status line also for multiple reads.
Cc: stable@vger.kernel.org
Fixes: 1f4aace60b0e ("fs/seq_file.c: simplify seq_file iteration code and interface")
Signed-off-by: Jan Glauber <jglauber@digitalocean.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6a4db2a60306eb65bfb14ccc9fde035b74a4b4e7 upstream.
commit d3374825ce57 ("md: make devices disappear when they are no longer
needed.") introduced protection between mddev creating & removing. The
md_open shouldn't create mddev when all_mddevs list doesn't contain
mddev. With currently code logic, there will be very easy to trigger
soft lockup in non-preempt env.
This patch changes md_open returning from -ERESTARTSYS to -EBUSY, which
will break the infinitely retry when md_open enter racing area.
This patch is partly fix soft lockup issue, full fix needs mddev_find
is split into two functions: mddev_find & mddev_find_or_alloc. And
md_open should call new mddev_find (it only does searching job).
For more detail, please refer with Christoph's "split mddev_find" patch
in later commits.
commit 8b57251f9a91f5e5a599de7549915d2d226cc3af upstream.
Factor out a self-contained helper to just lookup a mddev by the dev_t
"unit".
Cc: stable@vger.kernel.org
Reviewed-by: Heming Zhao <heming.zhao@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 65aa97c4d2bfd76677c211b9d03ef05a98c6d68e upstream.
Split mddev_find into a simple mddev_find that just finds an existing
mddev by the unit number, and a more complicated mddev_find that deals
with find or allocating a mddev.
This turns out to fix this bug reported by Zhao Heming.
----------------------------- snip ------------------------------
commit d3374825ce57 ("md: make devices disappear when they are no longer
needed.") introduced protection between mddev creating & removing. The
md_open shouldn't create mddev when all_mddevs list doesn't contain
mddev. With currently code logic, there will be very easy to trigger
soft lockup in non-preempt env.
commit 404a8ef512587b2460107d3272c17a89aef75edf upstream.
NULL pointer dereference was observed in super_written() when it tries
to access the mddev structure.
[The below stack trace is from an older kernel, but the problem described
in this patch applies to the mainline kernel.]
[ 1194.474861] task: ffff8fdd20858000 task.stack: ffffb99d40790000
[ 1194.488000] RIP: 0010:super_written+0x29/0xe1
[ 1194.499688] RSP: 0018:ffff8ffb7fcc3c78 EFLAGS: 00010046
[ 1194.512477] RAX: 0000000000000000 RBX: ffff8ffb7bf4a000 RCX: ffff8ffb78991048
[ 1194.527325] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8ffb56b8a200
[ 1194.542576] RBP: ffff8ffb7fcc3c90 R08: 000000000000000b R09: 0000000000000000
[ 1194.558001] R10: ffff8ffb56b8a298 R11: 0000000000000000 R12: ffff8ffb56b8a200
[ 1194.573070] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 1194.588117] FS: 0000000000000000(0000) GS:ffff8ffb7fcc0000(0000) knlGS:0000000000000000
[ 1194.604264] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1194.617375] CR2: 00000000000002b8 CR3: 00000021e040a002 CR4: 00000000007606e0
[ 1194.632327] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1194.647865] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1194.663316] PKRU: 55555554
[ 1194.674090] Call Trace:
[ 1194.683735] <IRQ>
[ 1194.692948] bio_endio+0xae/0x135
[ 1194.703580] blk_update_request+0xad/0x2fa
[ 1194.714990] blk_update_bidi_request+0x20/0x72
[ 1194.726578] __blk_end_bidi_request+0x2c/0x4d
[ 1194.738373] __blk_end_request_all+0x31/0x49
[ 1194.749344] blk_flush_complete_seq+0x377/0x383
[ 1194.761550] flush_end_io+0x1dd/0x2a7
[ 1194.772910] blk_finish_request+0x9f/0x13c
[ 1194.784544] scsi_end_request+0x180/0x25c
[ 1194.796149] scsi_io_completion+0xc8/0x610
[ 1194.807503] scsi_finish_command+0xdc/0x125
[ 1194.818897] scsi_softirq_done+0x81/0xde
[ 1194.830062] blk_done_softirq+0xa4/0xcc
[ 1194.841008] __do_softirq+0xd9/0x29f
[ 1194.851257] irq_exit+0xe6/0xeb
[ 1194.861290] do_IRQ+0x59/0xe3
[ 1194.871060] common_interrupt+0x1c6/0x382
[ 1194.881988] </IRQ>
[ 1194.890646] RIP: 0010:cpuidle_enter_state+0xdd/0x2a5
[ 1194.902532] RSP: 0018:ffffb99d40793e68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff43
[ 1194.917317] RAX: ffff8ffb7fce27c0 RBX: ffff8ffb7fced800 RCX: 000000000000001f
[ 1194.932056] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
[ 1194.946428] RBP: ffffb99d40793ea0 R08: 0000000000000004 R09: 0000000000002ed2
[ 1194.960508] R10: 0000000000002664 R11: 0000000000000018 R12: 0000000000000003
[ 1194.974454] R13: 000000000000000b R14: ffffffff925715a0 R15: 0000011610120d5a
[ 1194.988607] ? cpuidle_enter_state+0xcc/0x2a5
[ 1194.999077] cpuidle_enter+0x17/0x19
[ 1195.008395] call_cpuidle+0x23/0x3a
[ 1195.017718] do_idle+0x172/0x1d5
[ 1195.026358] cpu_startup_entry+0x73/0x75
[ 1195.035769] start_secondary+0x1b9/0x20b
[ 1195.044894] secondary_startup_64+0xa5/0xa5
[ 1195.084921] RIP: super_written+0x29/0xe1 RSP: ffff8ffb7fcc3c78
[ 1195.096354] CR2: 00000000000002b8
bio in the above stack is a bitmap write whose completion is invoked after
the tear down sequence sets the mddev structure to NULL in rdev.
During tear down, there is an attempt to flush the bitmap writes, but for
external bitmaps, there is no explicit wait for all the bitmap writes to
complete. For instance, md_bitmap_flush() is called to flush the bitmap
writes, but the last call to md_bitmap_daemon_work() in md_bitmap_flush()
could generate new bitmap writes for which there is no explicit wait to
complete those writes. The call to md_bitmap_update_sb() will return
simply for external bitmaps and the follow-up call to md_update_sb() is
conditional and may not get called for external bitmaps. This results in a
kernel panic when the completion routine, super_written() is called which
tries to reference mddev in the rdev that has been set to
NULL(in unbind_rdev_from_array() by tear down sequence).
The solution is to call md_super_wait() for external bitmaps after the
last call to md_bitmap_daemon_work() in md_bitmap_flush() to ensure there
are no pending bitmap writes before proceeding with the tear down.
Cc: stable@vger.kernel.org
Signed-off-by: Sudhakar Panneerselvam <sudhakar.panneerselvam@oracle.com>
Reviewed-by: Zhao Heming <heming.zhao@suse.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3641762c1c9c7cfd84a7061a0a73054f09b412e3 upstream.
Before this commit lis3lv02d_get_pwron_wait() had a WARN_ONCE() to catch
a potential divide by 0. WARN macros should only be used to catch internal
kernel bugs and that is not the case here. We have been receiving a lot of
bug reports about kernel backtraces caused by this WARN.
The div value being checked comes from the lis3->odrs[] array. Which
is sized to be a power-of-2 matching the number of bits in lis3->odr_mask.
The only lis3 model where this array is not entirely filled with non zero
values. IOW the only model where we can hit the div == 0 check is the
3dc ("8 bits 3DC sensor") model:
int lis3_3dc_rates[16] = {0, 1, 10, 25, 50, 100, 200, 400, 1600, 5000};
Note the 0 value at index 0, according to the datasheet an odr index of 0
means "Power-down mode". HP typically uses a lis3 accelerometer for HDD
fall protection. What I believe is happening here is that on newer
HP devices, which only contain a SDD, the BIOS is leaving the lis3 device
powered-down since it is not used for HDD fall protection.
Note that the lis3_3dc_rates array initializer only specifies 10 values,
which matches the datasheet. So it also contains 6 zero values at the end.
Replace the WARN with a normal check, which treats an odr index of 0
as power-down and uses a normal dev_err() to report the error in case
odr index point past the initialized part of the array.
Fixes: 1510dd5954be ("lis3lv02d: avoid divide by zero due to unchecked")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=785814
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1817027
BugLink: https://bugs.centos.org/view.php?id=10720
Link: https://lore.kernel.org/r/20210217102501.31758-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4e102429f3dc62dce546f6107e34a4284634196d upstream.
Whilst running some basic tests as part of writing up the dt-bindings for
this driver (to follow), it became clear it doesn't actually load
currently.
iio iio:device1: tried to double register : in_incli_x_index
adis16201 spi0.0: Failed to create buffer sysfs interfaces
adis16201: probe of spi0.0 failed with error -16
Looks like a cut and paste / update bug. Fixes tag obviously not accurate
but we don't want to bother carry thing back to before the driver moved
out of staging.
Fixes: 591298e54cea ("Staging: iio: accel: adis16201: Move adis16201 driver out of staging")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: <Stable@vger.kernel.org>
Cc: Himanshu Jha <himanshujha199640@gmail.com>
Cc: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20210321182956.844652-1-jic23@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit e00dc69b5f17c444a38cd9745a0f76bc989b3af4 upstream.
0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722") disabled access
to VPD of the ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter because
reading past the end of the VPD caused NMIs.
104daa71b396 ("PCI: Determine actual VPD size on first access") limits
reads to the actual size of VPD, which should prevent these NMIs.
104daa71b396 was merged *before* 0d5370d1d852, but we think the testing
that prompted 0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722")
was done with a kernel that lacked 104daa71b396. See [1, 2].
Remove the quirk added by 0d5370d1d852 ("PCI: Prevent VPD access for QLogic
ISP2722") so customers can read the HBA VPD.
[1] https://lore.kernel.org/linux-pci/alpine.LRH.2.21.9999.2012161641230.28924@irv1user01.caveonetworks.com/
[2] https://lore.kernel.org/linux-pci/alpine.LRH.2.21.9999.2104071535110.13940@irv1user01.caveonetworks.com/
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20210409215153.16569-2-aeasi@marvell.com
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v4.6+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f626ca682912fab55dff15469ce893ae16b65c7e upstream.
Recent versions of the PCI Express specification have deprecated support
for I/O transactions and actually some PCIe host bridges, such as Power
Systems Host Bridge 4 (PHB4), do not implement them.
For those systems the PCI BARs that request a mapping in the I/O space
have the length recorded in the corresponding PCI resource set to zero,
which makes it unassigned:
# lspci -s 0031:02:04.0 -v
0031:02:04.0 FDDI network controller: Digital Equipment Corporation PCI-to-PDQ Interface Chip [PFI] FDDI (DEFPA) (rev 02)
Subsystem: Digital Equipment Corporation FDDIcontroller/PCI (DEFPA)
Flags: bus master, medium devsel, latency 136, IRQ 57, NUMA node 8
Memory at 620c080020000 (32-bit, non-prefetchable) [size=128]
I/O ports at <unassigned> [disabled]
Memory at 620c080030000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [50] Power Management version 2
Kernel driver in use: defxx
Kernel modules: defxx
#
Regardless the driver goes ahead and requests it (here observed with a
Raptor Talos II POWER9 system), resulting in an odd /proc/ioport entry:
# cat /proc/ioports
00000000-ffffffffffffffff : 0031:02:04.0
#
Furthermore, the system gets confused as the driver actually continues
and pokes at those locations, causing a flood of messages being output
to the system console by the underlying system firmware, like:
defxx: v1.11 2014/07/01 Lawrence V. Stefani and others
defxx 0031:02:04.0: enabling device (0140 -> 0142)
LPC[000]: Got SYNC no-response error. Error address reg: 0xd0010000
IPMI: dropping non severe PEL event
LPC[000]: Got SYNC no-response error. Error address reg: 0xd0010014
IPMI: dropping non severe PEL event
LPC[000]: Got SYNC no-response error. Error address reg: 0xd0010014
IPMI: dropping non severe PEL event
and so on and so on (possibly intermixed actually, as there's no locking
between the kernel and the firmware in console port access with this
particular system, but cleaned up above for clarity), and once some 10k
of such pairs of the latter two messages have been produced an interace
eventually shows up in a useless state:
0031:02:04.0: DEFPA at I/O addr = 0x0, IRQ = 57, Hardware addr = 00-00-00-00-00-00
This was not expected to happen as resource handling was added to the
driver a while ago, because it was not known at that time that a PCI
system would be possible that cannot assign port I/O resources, and
oddly enough `request_region' does not fail, which would have caught it.
Correct the problem then by checking for the length of zero for the CSR
resource and bail out gracefully refusing to register an interface if
that turns out to be the case, producing messages like:
defxx: v1.11 2014/07/01 Lawrence V. Stefani and others
0031:02:04.0: Cannot use I/O, no address set, aborting
0031:02:04.0: Recompile driver with "CONFIG_DEFXX_MMIO=y"
Keep the original check for the EISA MMIO resource as implemented,
because in that case the length is hardwired to 0x400 as a consequence
of how the compare/mask address decoding works in the ESIC chip and it
is only the base address that is set to zero if MMIO has been disabled
for the adapter in EISA configuration, which in turn could be a valid
bus address in a legacy-free system implementing PCI, especially for
port I/O.
Where the EISA MMIO resource has been disabled for the adapter in EISA
configuration this arrangement keeps producing messages like:
eisa 00:05: EISA: slot 5: DEC3002 detected
defxx: v1.11 2014/07/01 Lawrence V. Stefani and others
00:05: Cannot use MMIO, no address set, aborting
00:05: Recompile driver with "CONFIG_DEFXX_MMIO=n"
00:05: Or run ECU and set adapter's MMIO location
with the last two lines now swapped for easier handling in the driver.
There is no need to check for and catch the case of a port I/O resource
not having been assigned for EISA as the adapter uses the slot-specific
I/O space, which gets assigned by how EISA has been specified and maps
directly to the particular slot an option card has been placed in. And
the EISA variant of the adapter has additional registers that are only
accessible via the port I/O space anyway.
While at it factor out the error message calls into helpers and fix an
argument order bug with the `pr_err' call now in `dfx_register_res_err'.
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: 4d0438e56a8f ("defxx: Clean up DEFEA resource management")
Cc: stable@vger.kernel.org # v3.19+
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
