[PATCH v7 05/11] powerpc/32: use memset() instead of memset_io() to zero BSS
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STALE2794d
SUPERSEDED: 1 (1M)
From: Christophe Leroy <hidden>
Date: 2019-02-25 13:48:50
Also in:
linux-mm
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Revision v7 of 5 in this series; 1 review trailer.
Revisions (5)
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 <redacted>
---
arch/powerpc/kernel/early_32.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/early_32.c b/arch/powerpc/kernel/early_32.c
index 99a3d82588e7..3482118ffe76 100644
--- a/arch/powerpc/kernel/early_32.c
+++ b/arch/powerpc/kernel/early_32.c@@ -21,10 +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
--
2.13.3