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| author | Arnd Bergmann <arnd@arndb.de> | 2023-04-14 10:03:53 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-04-19 01:29:42 +0200 |
| commit | 5f300fd59a2ae90b8a7fb5ed3d5fd43768236c38 (patch) | |
| tree | 17aeddcce782c291bb0ffc788384d1dfb0792eee /mm | |
| parent | mm: avoid passing 0 to __ffs() (diff) | |
| download | linux-5f300fd59a2ae90b8a7fb5ed3d5fd43768236c38.tar.xz linux-5f300fd59a2ae90b8a7fb5ed3d5fd43768236c38.zip | |
mm: make arch_has_descending_max_zone_pfns() static
clang produces a build failure on x86 for some randconfig builds after a
change that moves around code to mm/mm_init.c:
Cannot find symbol for section 2: .text.
mm/mm_init.o: failed
I have not been able to figure out why this happens, but the __weak
annotation on arch_has_descending_max_zone_pfns() is the trigger here.
Removing the weak function in favor of an open-coded Kconfig option check
avoids the problem and becomes clearer as well as better to optimize by
the compiler.
[arnd@arndb.de: fix logic bug]
Link: https://lkml.kernel.org/r/20230415081904.969049-1-arnd@kernel.org
Link: https://lkml.kernel.org/r/20230414080418.110236-1-arnd@kernel.org
Fixes: 9420f89db2dd ("mm: move most of core MM initialization to mm/mm_init.c")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: SeongJae Park <sj@kernel.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mm_init.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/mm_init.c b/mm/mm_init.c index dd3a6ed9663f..a0ec3b3acb5e 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -1752,9 +1752,9 @@ static void __init free_area_init_memoryless_node(int nid) * Some architectures, e.g. ARC may have ZONE_HIGHMEM below ZONE_NORMAL. For * such cases we allow max_zone_pfn sorted in the descending order */ -bool __weak arch_has_descending_max_zone_pfns(void) +static bool arch_has_descending_max_zone_pfns(void) { - return false; + return IS_ENABLED(CONFIG_ARC) && !IS_ENABLED(CONFIG_ARC_HAS_PAE40); } /** |