linux-kernel - [PATCH] scsi: isci: remove redundant initialization to 'bit'

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Date:   Tue,  6 Feb 2018 14:12:36 +0000
From:   Colin King <colin.king@...onical.com>
To:     Intel SCU Linux support <intel-linux-scu@...el.com>,
        Artur Paszkiewicz <artur.paszkiewicz@...el.com>,
        "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] scsi: isci: remove redundant initialization to 'bit'

From: Colin Ian King <colin.king@...onical.com>

Variable bit is initialized with a value that is never read and is
being updated immediately after the initialization, hence the
initialization is redundant and can be removed.

Cleans up clang warning:
drivers/scsi/isci/host.c:2769:8: warning: Value stored to 'bit' during
its initialization is never read

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/scsi/isci/host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index 13b37cdffa8e..1ee3868ade07 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -2766,7 +2766,7 @@ static int sci_write_gpio_tx_gp(struct isci_host *ihost, u8 reg_index, u8 reg_co
 		int i;
 
 		for (i = 0; i < 3; i++) {
-			int bit = (i << 2) + 2;
+			int bit;
 
 			bit = try_test_sas_gpio_gp_bit(to_sas_gpio_od(d, i),
 						       write_data, reg_index,
-- 
2.15.1