linux-kernel - [PATCH] ata/acard_ahci: remove unused variable n

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Message-Id: <1579596529-257563-1-git-send-email-alex.shi@linux.alibaba.com>
Date:   Tue, 21 Jan 2020 16:48:49 +0800
From:   Alex Shi <alex.shi@...ux.alibaba.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Jens Axboe <axboe@...nel.dk>, linux-ide@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ata/acard_ahci: remove unused variable n_elem

No one care the varible acard_ahci in func acard_ahci_qc_prep.
better to remove it.

Signed-off-by: Alex Shi <alex.shi@...ux.alibaba.com>
Cc: Jens Axboe <axboe@...nel.dk> 
Cc: linux-ide@...r.kernel.org 
Cc: linux-kernel@...r.kernel.org 
---
 drivers/ata/acard-ahci.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
index 46dc54d18f0b..2a04e8abd397 100644
--- a/drivers/ata/acard-ahci.c
+++ b/drivers/ata/acard-ahci.c
@@ -218,7 +218,6 @@ static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc)
 	void *cmd_tbl;
 	u32 opts;
 	const u32 cmd_fis_len = 5; /* five dwords */
-	unsigned int n_elem;
 
 	/*
 	 * Fill in command table information.  First, the header,
@@ -232,9 +231,8 @@ static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc)
 		memcpy(cmd_tbl + AHCI_CMD_TBL_CDB, qc->cdb, qc->dev->cdb_len);
 	}
 
-	n_elem = 0;
 	if (qc->flags & ATA_QCFLAG_DMAMAP)
-		n_elem = acard_ahci_fill_sg(qc, cmd_tbl);
+		acard_ahci_fill_sg(qc, cmd_tbl);
 
 	/*
 	 * Fill in command slot information.
-- 
1.8.3.1