Re: [PATCH 1/3] ARM: tegra: fix build error when THUMB2_KERNEL enabled

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On Mon, Apr 15, 2013 at 04:50:53PM -0600, Stephen Warren wrote:
> From: Joseph Lo <josephl@xxxxxxxxxx>
> 
> This patch fix the build failure when CONFIG_THUBM2_KERNEL enabled. You
> clould see the error message below:
> 
> arch/arm/mach-tegra/sleep-tegra30.S:69: Error: shift must be constant --
> `orr r12,r12,r4,lsl r3'
> 
> Reported-by: Arnd Bergmann <arnd@xxxxxxxx>
> Signed-off-by: Joseph Lo <josephl@xxxxxxxxxx>
> Signed-off-by: Stephen Warren <swarren@xxxxxxxxxx>

FWIW, Reviewed-by: Dave Martin <dave.martin@xxxxxxxxxx>

> ---
> Arnd, Olof, here are 3 fixes from Joseph for some Tegra build issues,
> mostly exposed by multi-platform enablement and/or related randconfig
> testing.
> 
> Can you please apply these to arm-soc? For reference, I tested applying
> them to Tegra's for-3.10/fixes branch and they apply there fine, and
> merge with the other Tegra for-3.10 branches at least, without any issue.
> 
> Note: patch 3 triggers checkpatch, but I can't work out why; the code
> seems to be formatted the same as patch 1 and 2, and is consistent with
> other usage of ARM() and THUMB() macros in arch/arm/.
> 
>  arch/arm/mach-tegra/sleep-tegra30.S |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S
> index 63a15bd..d29dfcc 100644
> --- a/arch/arm/mach-tegra/sleep-tegra30.S
> +++ b/arch/arm/mach-tegra/sleep-tegra30.S
> @@ -66,7 +66,9 @@ ENTRY(tegra30_cpu_shutdown)
>  		FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG | \
>  		FLOW_CTRL_CSR_ENABLE
>  	mov	r4, #(1 << 4)
> -	orr	r12, r12, r4, lsl r3
> + ARM(	orr	r12, r12, r4, lsl r3	)
> + THUMB(	lsl	r4, r4, r3		)
> + THUMB(	orr	r12, r12, r4		)
>  	str	r12, [r1]
>  
>  	/* Halt this CPU. */
> -- 
> 1.7.10.4
> 
> 
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