Re: [PATCH 1/8] arm64: kernel: don't export local symbols from head.S

From: Mark Rutland
Date: Mon Apr 18 2016 - 11:36:13 EST


On Mon, Apr 18, 2016 at 05:09:41PM +0200, Ard Biesheuvel wrote:
> This unexports some symbols from head.S that are only used locally.

It might be worth s/some/all/, as that makes this sound less arbitrary
(and AFAICS this caters for all symbols only used locally).

> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>

Acked-by: Mark Rutland <mark.rutland@xxxxxxx>

Mark.

> ---
> arch/arm64/kernel/head.S | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
> index b43417618847..ac27d8d937b2 100644
> --- a/arch/arm64/kernel/head.S
> +++ b/arch/arm64/kernel/head.S
> @@ -638,7 +638,7 @@ ENDPROC(el2_setup)
> * Sets the __boot_cpu_mode flag depending on the CPU boot mode passed
> * in x20. See arch/arm64/include/asm/virt.h for more info.
> */
> -ENTRY(set_cpu_boot_mode_flag)
> +set_cpu_boot_mode_flag:
> adr_l x1, __boot_cpu_mode
> cmp w20, #BOOT_CPU_MODE_EL2
> b.ne 1f
> @@ -691,7 +691,7 @@ ENTRY(secondary_entry)
> b secondary_startup
> ENDPROC(secondary_entry)
>
> -ENTRY(secondary_startup)
> +secondary_startup:
> /*
> * Common entry point for secondary CPUs.
> */
> @@ -706,7 +706,7 @@ ENTRY(secondary_startup)
> ENDPROC(secondary_startup)
> 0: .long (_text - TEXT_OFFSET) - __secondary_switched
>
> -ENTRY(__secondary_switched)
> +__secondary_switched:
> adr_l x5, vectors
> msr vbar_el1, x5
> isb
> --
> 2.5.0
>