Messages in this thread Patch in this message | | | Date | Sat, 19 Jul 2014 17:07:41 +0530 | From | Himangi Saraogi <> | Subject | [PATCH] parisc: Eliminate memset after alloc_bootmem_pages |
| |
alloc_bootmem and related function always return zeroed region of memory. Thus a memset after calls to these functions is unnecessary.
The following Coccinelle semantic patch was used for making the change:
@@ expression E,E1; @@
E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...) ... when != E - memset(E,0,E1);
Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> --- arch/parisc/mm/init.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index ae085ad..0bef864 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -728,7 +728,6 @@ static void __init pagetable_init(void) #endif empty_zero_page = alloc_bootmem_pages(PAGE_SIZE); - memset(empty_zero_page, 0, PAGE_SIZE); } static void __init gateway_init(void) -- 1.9.1
| |