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Vidya Sagar ebe2d576ce PCI: tegra194: Fix Root Port interrupt handling 
[ Upstream commit 6646e99bce ]

As part of Root Port interrupt handling, level-0 register is read first and
based on the bits set in that, corresponding level-1 registers are read for
further interrupt processing. Since both these values are currently read
into the same 'val' variable, checking level-0 bits the second time around
is happening on the 'val' variable value of level-1 register contents
instead of freshly reading the level-0 value again.

Fix by using different variables to store level-0 and level-1 registers
contents.

Link: https://lore.kernel.org/r/20220721142052.25971-11-vidyas@nvidia.com
Fixes: 56e15a238d ("PCI: tegra: Add Tegra194 PCIe support")
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2022-08-17 15:15:37 +02:00
arch um: random: Don't initialise hwrng struct with zero 2022-08-17 15:15:33 +02:00
block blk-mq: don't create hctx debugfs dir until q->debugfs_dir is created 2022-08-17 15:14:16 +02:00
certs certs: make system keyring depend on x509 parser 2022-07-24 12:53:55 -07:00
crypto crypto: s390 - do not depend on CRYPTO_HW for SIMD implementations 2022-07-06 20:04:06 -07:00
Documentation dt-bindings: mmc: sdhci-msm: Fix issues in yaml bindings 2022-08-17 15:15:30 +02:00
drivers PCI: tegra194: Fix Root Port interrupt handling 2022-08-17 15:15:37 +02:00
fs kernfs: fix potential NULL dereference in __kernfs_remove 2022-08-17 15:15:26 +02:00
include iio: cros: Register FIFO callback after sensor is registered 2022-08-17 15:15:35 +02:00
init stack: Declare {randomize_,}kstack_offset to fix Sparse warnings 2022-08-17 15:14:14 +02:00
io_uring io_uring: Don't require reinitable percpu_ref 2022-08-17 15:14:20 +02:00
ipc ipc: Free mq_sysctls if ipc namespace creation failed 2022-06-22 17:47:41 -05:00
kernel wireguard: ratelimiter: use hrtimer in selftest 2022-08-17 15:14:59 +02:00
lib lib/test_hmm: avoid accessing uninitialized pages 2022-08-17 15:15:20 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm: percpu: use kmemleak_ignore_phys() instead of kmemleak_free() 2022-08-17 15:15:34 +02:00
net dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock 2022-08-17 15:14:59 +02:00
samples sample: bpf: xdp_router_ipv4: Allow the kernel to send arp requests 2022-08-17 15:14:25 +02:00
scripts scripts/gdb: fix 'lx-dmesg' on 32 bits arch 2022-08-17 15:15:36 +02:00
security selinux: Add boundary check in put_entry() 2022-08-17 15:14:06 +02:00
sound devcoredump: remove the useless gfp_t parameter in dev_coredumpv and dev_coredumpm 2022-08-17 15:15:21 +02:00
tools rtla/utils: Use calloc and check the potential memory allocation failure 2022-08-17 15:15:30 +02:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: Don't set Accessed/Dirty bits for ZERO_PAGE 2022-08-17 15:15:21 +02:00
.clang-format clang-format: Fix space after for_each macros 2022-05-20 19:27:16 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: split the second line of *.mod into *.usyms 2022-05-08 03:16:59 +09:00
.mailmap ARM: SoC fixes for 5.19, part 4 2022-07-27 09:43:07 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: mark ARM/PALM TREO SUPPORT orphan 2022-07-07 15:17:00 +02:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS io_uring: move to separate directory 2022-08-17 15:14:20 +02:00
Makefile io_uring: move to separate directory 2022-08-17 15:14:20 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.