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Stafford Horne c242d0c465 openrisc: Properly store r31 to pt_regs on unhandled exceptions 
[ Upstream commit 812489ac4d ]

In commit 91993c8c2e ("openrisc: use shadow registers to save regs on
exception") the unhandled exception path was changed to do an early
store of r30 instead of r31.  The entry code was not updated and r31 is
not getting stored to pt_regs.

This patch updates the entry handler to store r31 instead of r30.  We
also remove some misleading commented out store r30 and r31
instructrions.

I noticed this while working on adding floating point exception
handling,  This issue probably would never impact anything since we kill
the process or Oops right away on unhandled exceptions.

Fixes: 91993c8c2e ("openrisc: use shadow registers to save regs on exception")
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-06 18:37:28 +08:00
arch openrisc: Properly store r31 to pt_regs on unhandled exceptions 2023-06-06 18:37:28 +08:00
block blk-crypto: make blk_crypto_evict_key() more robust 2023-06-06 18:34:51 +08:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2023-04-19 17:50:34 +08:00
crypto crypto: drbg - Only fail when jent is unavailable in FIPS mode 2023-06-06 18:37:15 +08:00
Documentation riscv: Move early dtb mapping into the fixmap region 2023-06-06 18:19:52 +08:00
drivers clocksource/drivers/davinci: Fix memory leak in davinci_timer_register when init fails 2023-06-06 18:37:28 +08:00
fs NFSv4.1: Always send a RECLAIM_COMPLETE after establishing lease 2023-06-06 18:37:27 +08:00
include SUNRPC: remove the maximum number of retries in call_bind_status 2023-06-06 18:37:28 +08:00
init kbuild: Add CONFIG_PAHOLE_VERSION 2023-04-19 17:59:33 +08:00
io_uring io_uring: avoid null-ptr-deref in io_arm_poll_handler 2023-04-19 18:00:57 +08:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2023-04-19 17:56:54 +08:00
kernel workqueue: Fix hung time report of worker pools 2023-06-06 18:37:26 +08:00
lib debugobject: Prevent init race with static objects 2023-06-06 18:37:11 +08:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs 2023-06-06 18:34:53 +08:00
net SUNRPC: remove the maximum number of retries in call_bind_status 2023-06-06 18:37:28 +08:00
samples samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe() 2023-04-19 17:57:46 +08:00
scripts scripts/gdb: raise error with reduced debugging information 2023-06-06 18:37:23 +08:00
security selinux: ensure av_permissions.h is built when needed 2023-06-06 18:37:04 +08:00
sound ASoC: fsl_mqs: move of_node_put() to the correct location 2023-06-06 18:37:23 +08:00
tools Revert "objtool: Support addition to set CFA base" 2023-06-06 18:37:25 +08:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2023-04-19 17:44:58 +08:00
virt KVM: fix memoryleak in kvm_init() 2023-04-19 18:00:47 +08:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
.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 .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
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 counter: Internalize sysfs interface code 2023-06-06 18:05:09 +08:00
Makefile Linux 5.15.110 2023-06-06 18:19:52 +08:00
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.