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Subject[PATCH] x86/resctrl: remove redundant assignment to variable chunks
Date
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@gmail.com>
---
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 c9f0f3d63f75..eaf25a234ff5 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)
--
2.33.1
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