[PATCH] ARM: dma-mapping: Mark atomic_pool as __ro_after_init

[Vladimir Murzin]

atomic_pool is setup once while init stage and never changed after
that, so it is good candidate for __ro_after_init.

Since we are here mark atomic_pool_size with __init_data.

Signed-off-by: Vladimir Murzin <vladimir.murzin at arm.com>
---
 arch/arm/mm/dma-mapping.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 25a8bce..ada8eb2 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -382,9 +382,9 @@ static void __dma_free_remap(void *cpu_addr, size_t size)
 }
 
 #define DEFAULT_DMA_COHERENT_POOL_SIZE	SZ_256K
-static struct gen_pool *atomic_pool;
+static struct gen_pool *atomic_pool __ro_after_init;
 
-static size_t atomic_pool_size = DEFAULT_DMA_COHERENT_POOL_SIZE;
+static size_t atomic_pool_size __initdata = DEFAULT_DMA_COHERENT_POOL_SIZE;
 
 static int __init early_coherent_pool(char *p)
 {
-- 
2.0.0