From: Nathan Chancellor Date: Wed, 16 Oct 2019 14:47:14 +0000 (-0700) Subject: arm64: mm: Fix unused variable warning in zone_sizes_init X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4399d430700d3974ed6c5a1b1380bc6527f17e99;p=linux.git arm64: mm: Fix unused variable warning in zone_sizes_init When building arm64 allnoconfig, CONFIG_ZONE_DMA and CONFIG_ZONE_DMA32 get disabled so there is a warning about max_dma being unused. ../arch/arm64/mm/init.c:215:16: warning: unused variable 'max_dma' [-Wunused-variable] unsigned long max_dma = min; ^ 1 warning generated. Add __maybe_unused to make this clear to the compiler. Fixes: 1a8e1cef7603 ("arm64: use both ZONE_DMA and ZONE_DMA32") Reviewed-by: Nicolas Saenz Julienne Signed-off-by: Nathan Chancellor Signed-off-by: Catalin Marinas --- diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 44f07fdf7a596..71b45c58218b8 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -212,7 +212,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) struct memblock_region *reg; unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES]; unsigned long max_dma32 = min; - unsigned long max_dma = min; + unsigned long __maybe_unused max_dma = min; memset(zone_size, 0, sizeof(zone_size));