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authorVladimir Murzin <vladimir.murzin@arm.com>2017-08-14 09:55:47 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2017-08-21 16:24:53 +0100
commit8165f70648da0a4a51e5871693781b2cc29b29d6 (patch)
tree90e0511c80395391995149f3ddf3b6b55db97881 /arch/arm64/mm
parentarm64: dma-mapping: Do not pass data to gen_pool_set_algo() (diff)
downloadlinux-dev-8165f70648da0a4a51e5871693781b2cc29b29d6.tar.xz
linux-dev-8165f70648da0a4a51e5871693781b2cc29b29d6.zip
arm64: dma-mapping: Mark atomic_pool as __ro_after_init
atomic_pool is setup once while init stage and never changed after that, so it is good candidate for __ro_after_init Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/mm')
-rw-r--r--arch/arm64/mm/dma-mapping.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 7038e1a61397..614af886b7ef 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -42,7 +42,7 @@ static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
return prot;
}
-static struct gen_pool *atomic_pool;
+static struct gen_pool *atomic_pool __ro_after_init;
#define DEFAULT_DMA_COHERENT_POOL_SIZE SZ_256K
static size_t atomic_pool_size __initdata = DEFAULT_DMA_COHERENT_POOL_SIZE;