From: Colin Ian King Date: Tue, 7 Dec 2021 22:37:35 +0000 (+0000) Subject: x86/resctrl: Remove redundant assignment to variable chunks X-Git-Tag: v5.17-rc1~191^2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=df0114f1f8711dbf481324c44cf5a8349130b913;p=thirdparty%2Fkernel%2Flinux.git x86/resctrl: Remove redundant assignment to variable chunks The variable chunks is being shifted right and re-assinged the shifted value which is then returned. Since chunks is not being read afterwards the assignment is redundant and the >>= operator can be replaced with a shift >> operator instead. Signed-off-by: Colin Ian King Signed-off-by: Dave Hansen Reviewed-by: Fenghua Yu Link: https://lkml.kernel.org/r/20211207223735.35173-1-colin.i.king@gmail.com --- diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c index c9f0f3d63f75f..eaf25a234ff5d 100644 --- a/arch/x86/kernel/cpu/resctrl/monitor.c +++ b/arch/x86/kernel/cpu/resctrl/monitor.c @@ -282,7 +282,7 @@ static u64 mbm_overflow_count(u64 prev_msr, u64 cur_msr, unsigned int width) u64 shift = 64 - width, chunks; chunks = (cur_msr << shift) - (prev_msr << shift); - return chunks >>= shift; + return chunks >> shift; } static u64 __mon_event_count(u32 rmid, struct rmid_read *rr)