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authorXiongwei Song <sxwjean@gmail.com>2022-01-14 14:07:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-15 16:30:29 +0200
commitca831f29f8f25c97182e726429b38c0802200c8f (patch)
treeb8683ce1de8106fe571b163318da7750a13fe8d7 /mm
parent1611f74a94ba2e0f2d25b75008ed8e76e122097a (diff)
mm: page_alloc: fix building error on -Werror=array-compare
Arthur Marsh reported we would hit the error below when building kernel with gcc-12: CC mm/page_alloc.o mm/page_alloc.c: In function `mem_init_print_info': mm/page_alloc.c:8173:27: error: comparison between two arrays [-Werror=array-compare] 8173 | if (start <= pos && pos < end && size > adj) \ | In C++20, the comparision between arrays should be warned. Link: https://lkml.kernel.org/r/20211125130928.32465-1-sxwjean@me.com Signed-off-by: Xiongwei Song <sxwjean@gmail.com> Reported-by: Arthur Marsh <arthur.marsh@internode.on.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 806f317c2e7e..c4ef450ac442 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8228,7 +8228,7 @@ void __init mem_init_print_info(void)
*/
#define adj_init_size(start, end, size, pos, adj) \
do { \
- if (start <= pos && pos < end && size > adj) \
+ if (&start[0] <= &pos[0] && &pos[0] < &end[0] && size > adj) \
size -= adj; \
} while (0)