Re: [PATCH] Cleanup __pvclock_read_cycles to remove useless variables

From: Borislav Petkov
Date: Sat Apr 30 2016 - 09:24:29 EST


On Mon, Apr 25, 2016 at 02:53:14PM +0800, Minfei Huang wrote:
> The value of cycles and flags can be assigned directly without
> intermediate variables.
>
> Remove the useless variables.
>
> Signed-off-by: Minfei Huang <mnghuan@xxxxxxxxx>
> ---
> arch/x86/include/asm/pvclock.h | 15 ++++-----------
> 1 file changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
> index fdcc040..fb95dac 100644
> --- a/arch/x86/include/asm/pvclock.h
> +++ b/arch/x86/include/asm/pvclock.h
> @@ -80,19 +80,12 @@ static __always_inline
> unsigned __pvclock_read_cycles(const struct pvclock_vcpu_time_info *src,
> cycle_t *cycles, u8 *flags)
> {
> - unsigned version;
> - cycle_t ret, offset;
> - u8 ret_flags;
> -
> - version = src->version;
> + cycle_t offset;
>
> offset = pvclock_get_nsec_offset(src);

You could go a step further and get rid of that
pvclock_get_nsec_offset() simple wrapper too and move its meat into
__pvclock_read_cycles()...

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Regards/Gruss,
Boris.

SUSE Linux GmbH, GF: Felix ImendÃrffer, Jane Smithard, Graham Norton, HRB 21284 (AG NÃrnberg)
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