On Fri, 28 Nov 2014, Masahiro Yamada wrote:

> 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 <yamad...@jp.panasonic.com>

Acked-by: Nicolas Pitre <n...@linaro.org>


> ---
> 
>  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
> 
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to