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Gaurav Jain 2efa4dd460 crypto: caam - save caam memory to support crypto engine retry mechanism. 
[ Upstream commit 087e1d715b ]

When caam queue is full (-ENOSPC), caam frees descriptor memory.
crypto-engine checks if retry support is true and h/w queue
is full(-ENOSPC), then requeue the crypto request.
During processing the requested descriptor again, caam gives below error.
(caam_jr 30902000.jr: 40000006: DECO: desc idx 0: Invalid KEY Command).

This patch adds a check to return when caam input ring is full
and retry support is true. so descriptor memory is not freed
and requeued request can be processed again.

Fixes: 2d653936eb ("crypto: caam - enable crypto-engine retry mechanism")
Signed-off-by: Gaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 11:03:24 +01:00
arch arm64: dts: qcom: msm8916: fix MMC controller aliases 2022-01-27 11:03:22 +01:00
block bfq: Do not let waker requests skip proper accounting 2022-01-27 11:03:18 +01:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto crypto: pcrypt - Delay write to padata->info 2021-11-18 19:16:44 +01:00
Documentation Input: i8042 - add deferred probe support 2022-01-05 12:42:32 +01:00
drivers crypto: caam - save caam memory to support crypto engine retry mechanism. 2022-01-27 11:03:24 +01:00
fs fs: dlm: fix build with CONFIG_IPV6 disabled 2022-01-27 11:03:13 +01:00
include cgroup: Trace event cgroup id fields should be u64 2022-01-27 11:03:23 +01:00
init init: make unknown command line param message clearer 2021-11-18 19:17:11 +01:00
ipc shm: extend forced shm destroy to support objects from several IPC nses 2021-11-25 09:48:42 +01:00
kernel dma/pool: create dma atomic pool only if dma zone has managed pages 2022-01-27 11:03:00 +01:00
lib siphash: use _unaligned version by default 2021-12-08 09:04:47 +01:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode 2022-01-27 11:03:01 +01:00
net netfilter: bridge: add support for pppoe filtering 2022-01-27 11:03:22 +01:00
samples ftrace/samples: Add missing prototypes direct functions 2022-01-11 15:35:13 +01:00
scripts recordmcount.pl: fix typo in s390 mcount regex 2022-01-05 12:42:33 +01:00
security selinux: initialize proto variable in selinux_ip_postroute_compat() 2022-01-05 12:42:34 +01:00
sound ALSA: core: Fix SSID quirk lookup for subvendor=0 2022-01-27 11:02:47 +01:00
tools libbpf: Clean gen_loader's attach kind. 2022-01-27 11:03:24 +01:00
usr .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
virt KVM: downgrade two BUG_ONs to WARN_ON_ONCE 2021-12-22 09:32:34 +01:00
.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 drm fixes for 5.15 final 2021-10-28 12:17:01 -07:00
Makefile Linux 5.15.16 2022-01-20 09:13:16 +01:00
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.