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From: Michal Orzel <michalorzel.eng@gmail.com>
To: Jens Axboe <axboe@kernel.dk>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Tom Rix <trix@redhat.com>
Cc: Michal Orzel <michalorzel.eng@gmail.com>,
	linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	llvm@lists.linux.dev
Subject: [PATCH v2 1/5] block/badblocks: Remove redundant assignments
Date: Tue, 12 Apr 2022 19:16:47 +0200	[thread overview]
Message-ID: <20220412171651.19812-1-michalorzel.eng@gmail.com> (raw)

Get rid of redundant assignments to a variable sectors from functions
badblocks_check and badblocks_clear. This variable, that is a function
parameter, is being assigned a value that is never read until the end of
function.

Reported by clang-tidy [deadcode.DeadStores]

Signed-off-by: Michal Orzel <michalorzel.eng@gmail.com>
---
Changes since v1:
-move the change into a separate patch
-add analysis
---
 block/badblocks.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/block/badblocks.c b/block/badblocks.c
index d39056630d9c..3afb550c0f7b 100644
--- a/block/badblocks.c
+++ b/block/badblocks.c
@@ -65,7 +65,6 @@ int badblocks_check(struct badblocks *bb, sector_t s, int sectors,
 		s >>= bb->shift;
 		target += (1<<bb->shift) - 1;
 		target >>= bb->shift;
-		sectors = target - s;
 	}
 	/* 'target' is now the first block after the bad range */
 
@@ -345,7 +344,6 @@ int badblocks_clear(struct badblocks *bb, sector_t s, int sectors)
 		s += (1<<bb->shift) - 1;
 		s >>= bb->shift;
 		target >>= bb->shift;
-		sectors = target - s;
 	}
 
 	write_seqlock_irq(&bb->lock);
-- 
2.25.1


             reply	other threads:[~2022-04-12 17:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-12 17:16 Michal Orzel [this message]
2022-04-12 17:16 ` [PATCH v2 2/5] block/blk-map: Remove redundant assignment Michal Orzel
2022-04-12 17:16 ` [PATCH v2 3/5] block/partitions/acorn: Remove redundant assignments Michal Orzel
2022-04-12 17:16 ` [PATCH v2 4/5] block/partitions/atari: Remove redundant assignment Michal Orzel
2022-04-12 17:16 ` [PATCH v2 5/5] block/partitions/ldm: Remove redundant assignments Michal Orzel

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