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Maurizio Lombardi dc1fc14047 nvme-host: fix the updating of the firmware version 
[ Upstream commit f0377ff975 ]

The original code didn't update the firmware version if the
"next slot" of the AFI register isn't zero or if the
"current slot" field is zero; in those cases it assumed
that a reset was needed.

However, the NVMe specification doesn't exclude the possibility that
the "next slot" value is equal to the "current slot" value,
meaning that the same firmware slot will be activated after performing
a controller level reset; in this case a reset is clearly not
necessary and we can safely update the firmware version.

Modify the code so the kernel will report that a Controller Level Reset
is needed only in the following cases:

1) If the "current slot" field is zero. This is invalid and means that
   something is wrong, a reset is needed.

or

2) if the "next slot" field isn't zero AND it's not equal to the
   "current slot" value. This means that at the next reset a different
   firmware slot will be activated.

Fixes: 983a338b96 ("nvme: update firmware version after commit")
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-02-16 19:14:27 +01:00
arch riscv: declare overflow_stack as exported from traps.c 2024-02-16 19:14:27 +01:00
block blk-mq: fix IO hang from sbitmap wakeup race 2024-02-05 20:17:05 +00:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: api - Disallow identical driver names 2024-01-31 16:20:54 -08:00
Documentation net: sysfs: Fix /sys/class/net/<iface> path 2024-02-05 20:17:10 +00:00
drivers nvme-host: fix the updating of the firmware version 2024-02-16 19:14:27 +01:00
fs ceph: always set initial i_blkbits to CEPH_FSCRYPT_BLOCK_SHIFT 2024-02-16 19:14:26 +01:00
include libceph: just wait for more data to be available on the socket 2024-02-16 19:14:26 +01:00
init rootfs: Fix support for rootfstype= when root= is given 2024-01-25 15:45:15 -08:00
io_uring io_uring: adjust defer tw counting 2024-01-25 15:45:30 -08:00
ipc Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
kernel perf: Fix the nr_addr_filters fix 2024-02-05 20:17:06 +00:00
lib kunit: run test suites only after module initialization completes 2024-02-05 20:17:07 +00:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm: Introduce flush_cache_vmap_early() 2024-02-16 19:14:25 +01:00
net libceph: just wait for more data to be available on the socket 2024-02-16 19:14:26 +01:00
rust rust: Ignore preserve-most functions 2024-01-25 15:45:09 -08:00
samples Landlock updates for v6.7-rc1 2023-11-03 09:28:53 -10:00
scripts scripts/get_abi: fix source path leak 2024-01-31 16:21:00 -08:00
security lsm: new security_file_ioctl_compat() hook 2024-01-31 16:21:00 -08:00
sound ASoC: codecs: wsa883x: fix PA volume control 2024-02-05 20:17:12 +00:00
tools selftests: cmsg_ipv6: repeat the exact packet 2024-02-16 19:14:23 +01:00
usr arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
virt KVM/arm64 fixes for 6.7, part #2 2023-12-22 18:03:54 -05:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: generate kernel.spec in rpmbuild/SPECS/ 2023-10-03 20:49:09 +09:00
.mailmap 12 hotfixes. 2 are cc:stable and the remainder either address post-6.7 2024-01-05 13:46:18 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS 12 hotfixes. 2 are cc:stable and the remainder either address post-6.7 2024-01-05 13:46:18 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS 12 hotfixes. 2 are cc:stable and the remainder either address post-6.7 2024-01-05 13:46:18 -08:00
Makefile Linux 6.7.4 2024-02-05 20:17:12 +00:00
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.