[PATCH v8 04/28] arm64: smccc: Include alternative-macros.h

Alex Elder elder at linaro.org
Mon Jan 9 13:34:21 PST 2023


On 12/19/22 4:58 PM, Elliot Berman wrote:
> Fix build error when CONFIG_ARM64_SVE is selected and
> asm/alternative-macros.h wasn't implicitly included by another header.
> 
> In file included from arch/arm64/gunyah/gunyah_hypercall.c:6:
> arch/arm64/gunyah/gunyah_hypercall.c: In function `gh_hypercall_msgq_send':
> ./include/linux/arm-smccc.h:387:25: error: expected string literal before `ALTERNATIVE'
>    387 | #define SMCCC_SVE_CHECK ALTERNATIVE("nop \n",  "bl __arm_smccc_sve_check \n", \
> 
> Signed-off-by: Elliot Berman <quic_eberman at quicinc.com>

If this is correct (and I presume it is), I think this patch should
be posted separate from (and before) the rest of the series.

					-Alex

> ---
>   include/linux/arm-smccc.h | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
> index 220c8c60e021..6a627cdbbdec 100644
> --- a/include/linux/arm-smccc.h
> +++ b/include/linux/arm-smccc.h
> @@ -383,6 +383,7 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
>   
>   /* nVHE hypervisor doesn't have a current thread so needs separate checks */
>   #if defined(CONFIG_ARM64_SVE) && !defined(__KVM_NVHE_HYPERVISOR__)
> +#include <asm/alternative-macros.h>
>   
>   #define SMCCC_SVE_CHECK ALTERNATIVE("nop \n",  "bl __arm_smccc_sve_check \n", \
>   				    ARM64_SVE)




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