linux-kernel - [PATCH] scsi: megaraid_sas: remove redundant variable cmd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220730124509.148457-1-colin.i.king@gmail.com>
Date:   Sat, 30 Jul 2022 13:45:09 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Kashyap Desai <kashyap.desai@...adcom.com>,
        Sumit Saxena <sumit.saxena@...adcom.com>,
        Shivasharan S <shivasharan.srikanteshwara@...adcom.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        megaraidlinux.pdl@...adcom.com, linux-scsi@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] scsi: megaraid_sas: remove redundant variable cmd_type

The variable cmd_type 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/scsi/megaraid/megaraid_sas_fusion.c:3228:10: warning: Although
the value stored to 'cmd_type' is used in the enclosing expression, the
value is never actually read from 'cmd_type' [deadcode.DeadStores]

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

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 5b5885d9732b..e48d4261d0bc 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3199,7 +3199,6 @@ megasas_build_io_fusion(struct megasas_instance *instance,
 			struct megasas_cmd_fusion *cmd)
 {
 	int sge_count;
-	u8  cmd_type;
 	u16 pd_index = 0;
 	u8 drive_type = 0;
 	struct MPI2_RAID_SCSI_IO_REQUEST *io_request = cmd->io_request;
@@ -3225,7 +3224,7 @@ megasas_build_io_fusion(struct megasas_instance *instance,
 	 */
 	io_request->IoFlags = cpu_to_le16(scp->cmd_len);
 
-	switch (cmd_type = megasas_cmd_type(scp)) {
+	switch (megasas_cmd_type(scp)) {
 	case READ_WRITE_LDIO:
 		megasas_build_ldio_fusion(instance, scp, cmd);
 		break;
-- 
2.35.3