linux-kernel - [PATCH] iommu: remove variable cnt

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Message-Id: <20221024134301.2158939-1-colin.i.king@gmail.com>
Date:   Mon, 24 Oct 2022 14:43:01 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Joerg Roedel <joro@...tes.org>,
        Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>, iommu@...ts.linux.dev
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] iommu: remove variable cnt

Variable cnt is just being incremented and it's never used
anywhere else. The variable and the increment are redundant so
remove it.

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/iommu/amd/iommu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index d3b39d0416fa..3847f3bdc568 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -767,7 +767,7 @@ EXPORT_SYMBOL(amd_iommu_register_ga_log_notifier);
 
 static void iommu_poll_ga_log(struct amd_iommu *iommu)
 {
-	u32 head, tail, cnt = 0;
+	u32 head, tail;
 
 	if (iommu->ga_log == NULL)
 		return;
@@ -780,7 +780,6 @@ static void iommu_poll_ga_log(struct amd_iommu *iommu)
 		u64 log_entry;
 
 		raw = (u64 *)(iommu->ga_log + head);
-		cnt++;
 
 		/* Avoid memcpy function-call overhead */
 		log_entry = *raw;
-- 
2.37.3