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Subject[tip: x86/cleanups] x86/events/amd/iommu: Remove redundant assignment to variable shift
The following commit has been merged into the x86/cleanups branch of tip:

Commit-ID: 0be4838f018c10d7f138a213c006d345db35ef5b
Gitweb: https://git.kernel.org/tip/0be4838f018c10d7f138a213c006d345db35ef5b
Author: Colin Ian King <colin.i.king@gmail.com>
AuthorDate: Tue, 07 Dec 2021 18:50:01
Committer: Borislav Petkov <bp@suse.de>
CommitterDate: Tue, 28 Dec 2021 21:30:05 +01:00

x86/events/amd/iommu: Remove redundant assignment to variable shift

Variable shift is being initialized with a value that is never read, it
is being re-assigned later inside a loop. The assignment is redundant
and can be removed.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211207185001.1412413-1-colin.i.king@gmail.com
---
arch/x86/events/amd/iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/amd/iommu.c b/arch/x86/events/amd/iommu.c
index 913745f..b15f7b9 100644
--- a/arch/x86/events/amd/iommu.c
+++ b/arch/x86/events/amd/iommu.c
@@ -161,7 +161,7 @@ static int get_next_avail_iommu_bnk_cntr(struct perf_event *event)

raw_spin_lock_irqsave(&piommu->lock, flags);

- for (bank = 0, shift = 0; bank < max_banks; bank++) {
+ for (bank = 0; bank < max_banks; bank++) {
for (cntr = 0; cntr < max_cntrs; cntr++) {
shift = bank + (bank*3) + cntr;
if (piommu->cntr_assign_mask & BIT_ULL(shift)) {
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