The following commit has been merged into the x86/cache branch of tip: Commit-ID: df0114f1f8711dbf481324c44cf5a8349130b913 Gitweb: https://git.kernel.org/tip/df0114f1f8711dbf481324c44cf5a8349130b913 Author: Colin Ian King <colin.i.king@xxxxxxxxx> AuthorDate: Tue, 07 Dec 2021 22:37:35 Committer: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> CommitterDate: Thu, 09 Dec 2021 09:57:16 -08:00 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 <colin.i.king@xxxxxxxxx> Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> Reviewed-by: Fenghua Yu <fenghua.yu@xxxxxxxxx> Link: https://lkml.kernel.org/r/20211207223735.35173-1-colin.i.king@xxxxxxxxx --- arch/x86/kernel/cpu/resctrl/monitor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c index c9f0f3d..eaf25a2 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)
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