From 20b105feda8d42360bd690b8fdf6b2f00ba4a993 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 4 Dec 2018 08:04:31 -0800 Subject: [PATCH] dma-mapping: remove a pointless memset in dma_atomic_pool_init We already zero the memory after allocating it from the pool that this function fills, and having the memset here in this form means we can't support CMA highmem allocations. Signed-off-by: Christoph Hellwig Reported-by: Russell King - ARM Linux --- kernel/dma/remap.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/dma/remap.c b/kernel/dma/remap.c index 8a44317cfc1a..18cc09fc27b9 100644 --- a/kernel/dma/remap.c +++ b/kernel/dma/remap.c @@ -121,7 +121,6 @@ int __init dma_atomic_pool_init(gfp_t gfp, pgprot_t prot) if (!page) goto out; - memset(page_address(page), 0, atomic_pool_size); arch_dma_prep_coherent(page, atomic_pool_size); atomic_pool = gen_pool_create(PAGE_SHIFT, -1); -- 2.39.5