Re: [PATCH] riscv: Add extern declarations for vDSO time-related functions

Re: [PATCH] riscv: Add extern declarations for vDSO time-related functions

[Palmer Dabbelt]

On Mon, 22 Jun 2020 22:40:21 PDT (-0700), vincent.chen@sifive.com wrote:
> Add extern declarations for vDSO time-related functions to notify the
> compiler these functions will be used in somewhere to avoid
> "no previous prototype" compile warning.
>
> Reported-by: kernel test robot <lkp@intel.com>
> Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
> ---
>  arch/riscv/kernel/vdso/vgettimeofday.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/arch/riscv/kernel/vdso/vgettimeofday.c b/arch/riscv/kernel/vdso/vgettimeofday.c
> index d264943e2e47..cc0d80699c31 100644
> --- a/arch/riscv/kernel/vdso/vgettimeofday.c
> +++ b/arch/riscv/kernel/vdso/vgettimeofday.c
> @@ -9,16 +9,22 @@
>  #include <linux/time.h>
>  #include <linux/types.h>
>
> +extern
> +int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts);
>  int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
>  {
>  	return __cvdso_clock_gettime(clock, ts);
>  }
>
> +extern
> +int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz);
>  int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
>  {
>  	return __cvdso_gettimeofday(tv, tz);
>  }
>
> +extern
> +int __vdso_clock_getres(clockid_t clock_id, struct __kernel_timespec *res);
>  int __vdso_clock_getres(clockid_t clock_id, struct __kernel_timespec *res)
>  {
>  	return __cvdso_clock_getres(clock_id, res);

Thanks, this is on fixes.

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