Cc'ing Arnd
On Thu, 28 Jan 2016, zengtao wrote:
> The structure:
> struct timeval {
> __kernel_time_t tv_sec; /* seconds */
> __kernel_suseconds_t tv_usec; /* microseconds */
> };
> both __kernel_time_t and __kernel_suseconds_t are short than u64
> when it is 32bit platform, so force u64 conversion here.
>
> Signed-off-by: zengtao <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
> ---
> include/asm-generic/cputime_nsecs.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/asm-generic/cputime_nsecs.h
> b/include/asm-generic/cputime_nsecs.h
> index 0419485..e2f7ff9 100644
> --- a/include/asm-generic/cputime_nsecs.h
> +++ b/include/asm-generic/cputime_nsecs.h
> @@ -91,7 +91,8 @@ static inline void cputime_to_timespec(const cputime_t ct,
> struct timespec *val)
> */
> static inline cputime_t timeval_to_cputime(const struct timeval *val)
> {
> - u64 ret = val->tv_sec * NSEC_PER_SEC + val->tv_usec * NSEC_PER_USEC;
> + u64 ret = (u64)val->tv_sec * NSEC_PER_SEC +
> + val->tv_usec * NSEC_PER_USEC;
> return (__force cputime_t) ret;
> }
> static inline void cputime_to_timeval(const cputime_t ct, struct timeval
> *val)
> --
> 1.9.1
>
>
