Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH 14/34] dma/congiguous: avoid warning about unused size_bytes | Date | Wed, 3 Apr 2024 10:06:32 +0200 |
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From: Arnd Bergmann <arnd@arndb.de>
When building with W=1, this variable is unused for configs with CONFIG_CMA_SIZE_SEL_PERCENTAGE=y:
kernel/dma/contiguous.c:67:26: error: 'size_bytes' defined but not used [-Werror=unused-const-variable=]
Mark it as __maybe_unused to avoid the warning without adding more ifdef checks to this file.
Fixes: c64be2bb1c6e ("drivers: add Contiguous Memory Allocator") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- kernel/dma/contiguous.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c index 055da410ac71..c53f4f633f7f 100644 --- a/kernel/dma/contiguous.c +++ b/kernel/dma/contiguous.c @@ -64,7 +64,7 @@ struct cma *dma_contiguous_default_area; * Users, who want to set the size of global CMA area for their system * should use cma= kernel parameter. */ -static const phys_addr_t size_bytes __initconst = +static const phys_addr_t size_bytes __initconst __maybe_unused = (phys_addr_t)CMA_SIZE_MBYTES * SZ_1M; static phys_addr_t size_cmdline __initdata = -1; static phys_addr_t base_cmdline __initdata; -- 2.39.2
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