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Adam Guerin defeb70636 crypto: qat - avoid division by zero 
[ Upstream commit f99fb7d660 ]

Check if delta_us is not zero and return -EINVAL if it is.
delta_us is unlikely to be zero as there is a sleep between the reads of
the two timestamps.

This is to fix the following warning when compiling the QAT driver
using clang scan-build:
    drivers/crypto/intel/qat/qat_common/adf_clock.c:87:9: warning: Division by zero [core.DivideZero]
       87 |         temp = DIV_ROUND_CLOSEST_ULL(temp, delta_us);
          |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: e2980ba57e ("crypto: qat - add measure clock frequency")
Signed-off-by: Adam Guerin <adam.guerin@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:17:11 -04:00
arch crypto: arm/sha - fix function cast warnings 2024-03-26 18:17:11 -04:00
block block: fix deadlock between bd_link_disk_holder and partition scan 2024-03-26 18:16:27 -04:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: lskcipher - Copy IV in lskcipher glue code always 2024-02-24 08:37:24 +08:00
Documentation dt-bindings: msm: qcom, mdss: Include ommited fam-b compatible 2024-03-26 18:17:04 -04:00
drivers crypto: qat - avoid division by zero 2024-03-26 18:17:11 -04:00
fs quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
include media: videobuf2: Add missing doc comment for waiting_in_dqbuf 2024-03-26 18:17:07 -04:00
init init/Kconfig: lower GCC version check for -Warray-bounds 2024-03-04 16:40:33 -08:00
io_uring io_uring/net: fix overflow check in io_recvmsg_mshot_prep() 2024-03-26 18:16:29 -04:00
ipc shm: Slim down dependencies 2023-12-20 19:26:31 -05:00
kernel bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible_nodes() 2024-03-26 18:16:57 -04:00
lib net: blackhole_dev: fix build warning for ethh set but not used 2024-03-26 18:16:38 -04:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:17:03 -04:00
net devlink: Fix length of eswitch inline-mode 2024-03-26 18:16:57 -04:00
rust Rust changes for v6.8 2024-01-11 13:05:41 -08:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
scripts 6 hotfixes. 4 are cc:stable and the remainder pertain to post-6.7 2024-03-07 17:16:38 -08:00
security integrity-v6.8-fix 2024-03-05 13:21:30 -08:00
sound ASoC: SOF: Add some bounds checking to firmware data 2024-03-26 18:17:06 -04:00
tools perf print-events: make is_event_supported() more robust 2024-03-26 18:17:11 -04:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Make KVM_MEM_GUEST_MEMFD mutually exclusive with KVM_MEM_READONLY 2024-02-22 17:07:06 -08:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.mailmap drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
.rustfmt.toml
COPYING
CREDITS MAINTAINERS: supplement of zswap maintainers update 2024-01-25 23:52:21 -08:00
Kbuild
Kconfig
MAINTAINERS drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
Makefile Linux 6.8.1 2024-03-15 14:19:29 -04:00
README

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.