Messages in this thread Patch in this message | | | From | Masahiro Yamada <> | Subject | [PATCH] ARM: replace magic number with PAGE_SHIFT macro in fixup_pv code | Date | Fri, 28 Nov 2014 15:10:41 +0900 |
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This line converts PHYS_OFFSET into PHYS_PFN_OFFSET. It is better to use PAGE_SHIFT rather than the magic number 12.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> ---
arch/arm/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 664eee8..ecb7be8 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -586,7 +586,7 @@ __fixup_pv_table: add r5, r5, r3 @ adjust table end address add r6, r6, r3 @ adjust __pv_phys_pfn_offset address add r7, r7, r3 @ adjust __pv_offset address - mov r0, r8, lsr #12 @ convert to PFN + mov r0, r8, lsr #PAGE_SHIFT @ convert to PFN str r0, [r6] @ save computed PHYS_OFFSET to __pv_phys_pfn_offset strcc ip, [r7, #HIGH_OFFSET] @ save to __pv_offset high bits mov r6, r3, lsr #24 @ constant for add/sub instructions -- 1.9.1
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