linux-kernel - [PATCH] drivers/rapidio/rio-scan.c: remove redundant variable tmp

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Message-Id: <20220730123309.147307-1-colin.i.king@gmail.com>
Date:   Sat, 30 Jul 2022 13:33:09 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Matt Porter <mporter@...nel.crashing.org>,
        Alexandre Bounine <alex.bou9@...il.com>
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drivers/rapidio/rio-scan.c: remove redundant variable tmp

The variable tmp is assigned a value but it is never read. The
variable and the assignment are redundant and can be removed.

Cleans up clang scan build warning:
drivers/rapidio/rio-scan.c:561:10: warning: Although the value
stored to 'tmp' is used in the enclosing expression, the value
is never actually read from 'tmp' [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/rapidio/rio-scan.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index 19b0c33f4a62..5256e76ab29c 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -524,7 +524,6 @@ static int rio_enum_peer(struct rio_net *net, struct rio_mport *port,
 {
 	struct rio_dev *rdev;
 	u32 regval;
-	int tmp;
 
 	if (rio_mport_chk_dev_access(port,
 			RIO_ANY_DESTID(port->sys_size), hopcount)) {
@@ -558,8 +557,7 @@ static int rio_enum_peer(struct rio_net *net, struct rio_mport *port,
 	rio_mport_write_config_32(port, RIO_ANY_DESTID(port->sys_size),
 				  hopcount,
 				  RIO_HOST_DID_LOCK_CSR, port->host_deviceid);
-	while ((tmp = rio_get_host_deviceid_lock(port, hopcount))
-	       < port->host_deviceid) {
+	while (rio_get_host_deviceid_lock(port, hopcount) < port->host_deviceid) {
 		/* Delay a bit */
 		mdelay(1);
 		/* Attempt to acquire device lock again */
-- 
2.35.3