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authorChristophe Leroy <christophe.leroy@c-s.fr>2019-04-26 19:23:30 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2019-05-02 18:20:26 +0300
commit7934cea7f0b93fcfdb3b175df94f539e4af86c9b (patch)
tree638172af316c3754c81553312ce69fdc8e079693 /arch/powerpc/kernel/early_32.c
parentadcf59187e2705721ccf23733a5fa2fb20d91415 (diff)
downloadlinux-7934cea7f0b93fcfdb3b175df94f539e4af86c9b.tar.xz
powerpc/32: use memset() instead of memset_io() to zero BSS
Since commit 400c47d81ca38 ("powerpc32: memset: only use dcbz once cache is enabled"), memset() can be used before activation of the cache, so no need to use memset_io() for zeroing the BSS. Acked-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/early_32.c')
-rw-r--r--arch/powerpc/kernel/early_32.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/early_32.c b/arch/powerpc/kernel/early_32.c
index cf3cdd81dc47..3482118ffe76 100644
--- a/arch/powerpc/kernel/early_32.c
+++ b/arch/powerpc/kernel/early_32.c
@@ -21,8 +21,8 @@ notrace unsigned long __init early_init(unsigned long dt_ptr)
{
unsigned long offset = reloc_offset();
- /* First zero the BSS -- use memset_io, some platforms don't have caches on yet */
- memset_io((void __iomem *)PTRRELOC(&__bss_start), 0, __bss_stop - __bss_start);
+ /* First zero the BSS */
+ memset(PTRRELOC(&__bss_start), 0, __bss_stop - __bss_start);
/*
* Identify the CPU type and fix up code sections