From 8f3e136ff378a2b22dbc0ca2a6e58022e6df36d2 Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Fri, 7 May 2021 22:19:59 +0800 Subject: [PATCH] riscv: mm: Remove setup_zero_page() The empty_zero_page sits at .bss..page_aligned section, so will be cleared to zero during clearing bss, we don't need to clear it again. Signed-off-by: Jisheng Zhang Reviewed-by: Anup Patel Signed-off-by: Palmer Dabbelt --- arch/riscv/mm/init.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 4faf8bd..11b61be 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -67,11 +67,6 @@ static void __init zone_sizes_init(void) free_area_init(max_zone_pfns); } -static void __init setup_zero_page(void) -{ - memset((void *)empty_zero_page, 0, PAGE_SIZE); -} - #if defined(CONFIG_MMU) && defined(CONFIG_DEBUG_VM) static inline void print_mlk(char *name, unsigned long b, unsigned long t) { @@ -867,7 +862,6 @@ RESERVEDMEM_OF_DECLARE(elfcorehdr, "linux,elfcorehdr", elfcore_hdr_setup); void __init paging_init(void) { setup_vm_final(); - setup_zero_page(); } void __init misc_mem_init(void) -- 2.7.4