[PATCH v2 8/8] selftests/livepatch: Add RISC-V syscall wrapper prefix

Shuai Xue xueshuai at linux.alibaba.com
Tue Jun 2 18:54:25 PDT 2026



On 5/28/26 4:23 PM, Wang Han wrote:
> The syscall livepatch selftest resolves and patches a syscall wrapper
> symbol. To use that test for RISC-V livepatch validation, add the
> RISC-V FN_PREFIX definition for ARCH_HAS_SYSCALL_WRAPPER.
> 
> Without this macro, the syscall livepatch selftest cannot resolve the
> RISC-V target symbol, and the syscall-related livepatch test fails on
> RISC-V.
> 
> Signed-off-by: Wang Han <wanghan at linux.alibaba.com>
> ---
>   .../testing/selftests/livepatch/test_modules/test_klp_syscall.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c b/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
> index dd802783ea84..275e4b10cf59 100644
> --- a/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
> +++ b/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
> @@ -18,6 +18,8 @@
>   #define FN_PREFIX __s390x_
>   #elif defined(__aarch64__)
>   #define FN_PREFIX __arm64_
> +#elif defined(__riscv)
> +#define FN_PREFIX __riscv_
>   #else
>   /* powerpc does not select ARCH_HAS_SYSCALL_WRAPPER */
>   #define FN_PREFIX

Reviewed-by: Shuai Xue <xueshuai at linux.alibaba.com>

Thanks.
Shuai



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