diff mbox series

[v10,07/18] powerpc/32: use memset() instead of memset_io() to zero BSS

Message ID 96efc03aff3ce13f22cb7da0adb6267b9dbaa2c3.1552428161.git.christophe.leroy@c-s.fr (mailing list archive)
State New, archived
Headers show
Series KASAN for powerpc/32 and RFC for 64bit Book3E | expand

Commit Message

Christophe Leroy March 12, 2019, 10:16 p.m. UTC 
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>
---
 arch/powerpc/kernel/early_32.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

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