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Nathan Chancellor ea7b4244b3 x86/setup: Explicitly include acpi.h 
After commit 342f43af70 ("iscsi_ibft: fix crash due to KASLR physical
memory remapping") x86_64_defconfig shows the following errors:

  arch/x86/kernel/setup.c: In function ‘setup_arch’:
  arch/x86/kernel/setup.c:916:13: error: implicit declaration of function ‘acpi_mps_check’ [-Werror=implicit-function-declaration]
    916 |         if (acpi_mps_check()) {
        |             ^~~~~~~~~~~~~~
  arch/x86/kernel/setup.c:1110:9: error: implicit declaration of function ‘acpi_table_upgrade’ [-Werror=implicit-function-declaration]
   1110 |         acpi_table_upgrade();
        |         ^~~~~~~~~~~~~~~~~~
  [... more acpi noise ...]

acpi.h was being implicitly included from iscsi_ibft.h in this
configuration so the removal of that header means these functions have
no definition or declaration.

In most other configurations, <linux/acpi.h> continued to be included
through at least <linux/tboot.h> if CONFIG_INTEL_TXT was enabled, and
there were probably other implicit include paths too.

Add acpi.h explicitly so there is no more error, and so that we don't
continue to depend on these unreliable implicit include paths.

Tested-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Cc: Maurizio Lombardi <mlombard@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Konrad Rzeszutek Wilk <konrad@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-01 10:17:05 -07:00
arch x86/setup: Explicitly include acpi.h 2021-09-01 10:17:05 -07:00
block for-5.15-tag 2021-08-31 09:41:22 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-08-30 12:57:10 -07:00
Documentation USB/Thunderbolt patches for 5.15-rc1 2021-09-01 09:59:34 -07:00
drivers USB/Thunderbolt patches for 5.15-rc1 2021-09-01 09:59:34 -07:00
fs Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
include USB/Thunderbolt patches for 5.15-rc1 2021-09-01 09:59:34 -07:00
init Core: 2021-08-31 16:43:06 -07:00
ipc Merge branch 'akpm' (patches from Andrew) 2021-07-02 12:08:10 -07:00
kernel Core: 2021-08-31 16:43:06 -07:00
lib Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm Core: 2021-08-31 16:43:06 -07:00
net TTY / Serial patches for 5.15-rc1 2021-09-01 09:51:16 -07:00
samples Char / Misc driver changes for 5.15-rc1 2021-09-01 08:35:06 -07:00
scripts Char / Misc driver changes for 5.15-rc1 2021-09-01 08:35:06 -07:00
security Core: 2021-08-31 16:43:06 -07:00
sound Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
tools Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
usr .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
virt KVM: Do not leak memory for duplicate debugfs directories 2021-08-04 06:02:03 -04:00
.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: update email address of Matthias Fuchs and Thomas Körper 2021-08-19 09:39:44 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: move Murali Karicheri to credits 2021-04-29 15:47:30 -07:00
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 IIO / Staging driver update for 5.15-rc1 2021-09-01 09:45:57 -07:00
Makefile Linux 5.14 2021-08-29 15:04:50 -07:00
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.