Messages in this thread Patch in this message | | | From | sxwjean@me ... | Subject | [PATCH] mm: page_alloc: Fix building error on -Werror=array-compare | Date | Thu, 25 Nov 2021 21:09:28 +0800 |
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From: Xiongwei Song <sxwjean@gmail.com>
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.
Reported-by: Arthur Marsh <arthur.marsh@internode.on.net> Signed-off-by: Xiongwei Song <sxwjean@gmail.com> --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index c5952749ad40..8f304c3d0e19 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8170,7 +8170,7 @@ 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) -- 2.30.2
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