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Nico Pache b346075fcf mm/page_alloc.c: fix 'zone_id' may be used uninitialized in this function warning 
When compiling with -Werror, cc1 will warn that 'zone_id' may be used
uninitialized in this function warning.

Initialize the zone_id as 0.

Its safe to assume that if the code reaches this point it has at least one
numa node with memory, so no need for an assertion before
init_unavilable_range.

Link: https://lkml.kernel.org/r/20210716210336.1114114-1-npache@redhat.com
Fixes: 122e093c17 ("mm/page_alloc: fix memory map initialization for descending nodes")
Signed-off-by: Nico Pache <npache@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-03 09:58:15 -07:00
arch microblaze: simplify pte_alloc_one_kernel() 2021-09-03 09:58:15 -07:00
block mm: remove flush_kernel_dcache_page 2021-09-03 09:58:13 -07:00
certs Kbuild updates for v5.13 (2nd) 2021-05-08 10:00:11 -07:00
crypto crypto: drbg - select SHA512 2021-07-16 15:49:31 +08:00
Documentation mm/kasan: move kasan.fault to mm/kasan/report.c 2021-09-03 09:58:14 -07:00
drivers mm: sparse: pass section_nr to find_memory_block 2021-09-03 09:58:14 -07:00
fs mm/pagemap: add mmap_assert_locked() annotations to find_vma*() 2021-09-03 09:58:13 -07:00
include mm/sparse: set SECTION_NID_SHIFT to 6 2021-09-03 09:58:14 -07:00
init init: Suppress wrong warning for bootconfig cmdline parameter 2021-08-12 13:35:57 -04:00
ipc memcg: enable accounting of ipc resources 2021-09-03 09:58:12 -07:00
kernel memcg: enable accounting for posix_timers_cache slab 2021-09-03 09:58:13 -07:00
lib kasan: test: avoid corrupting memory in kasan_rcu_uaf 2021-09-03 09:58:15 -07:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm/page_alloc.c: fix 'zone_id' may be used uninitialized in this function warning 2021-09-03 09:58:15 -07:00
net This is a one-liner fix for a serious bug that can cause the server to 2021-08-26 13:26:40 -07:00
samples Networking fixes for 5.14-rc2, including fixes from bpf and netfilter. 2021-07-14 09:24:32 -07:00
scripts Kbuild fixes for v5.14 (2nd) 2021-08-07 10:03:02 -07:00
security mm/pagemap: add mmap_assert_locked() annotations to find_vma*() 2021-09-03 09:58:13 -07:00
sound another sound-fixes for 5.14-rc7 2021-08-20 12:31:10 -07:00
tools mm: remove flush_kernel_dcache_page 2021-09-03 09:58:13 -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 scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.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 m68k updates for v5.14 2021-06-28 14:01:03 -07:00
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 MAINTAINERS: exfat: update my email address 2021-08-25 12:25:12 -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.