linux-kernel - [PATCH] scsi/megaraid_sas: fix a compilation warning

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Message-Id: <1564151143-22889-1-git-send-email-cai@lca.pw>
Date:   Fri, 26 Jul 2019 10:25:43 -0400
From:   Qian Cai <cai@....pw>
To:     martin.petersen@...cle.com
Cc:     jejb@...ux.ibm.com, kashyap.desai@...adcom.com,
        sumit.saxena@...adcom.com, shivasharan.srikanteshwara@...adcom.com,
        megaraidlinux.pdl@...adcom.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, Qian Cai <cai@....pw>
Subject: [PATCH] scsi/megaraid_sas: fix a compilation warning

The commit de516379e85f ("scsi: megaraid_sas: changes to function
prototypes") introduced a comilation warning due to it changed the
function prototype of read_fw_status_reg() to take an instance pointer
instead, but forgot to remove an unused variable.

drivers/scsi/megaraid/megaraid_sas_fusion.c: In function
'megasas_fusion_update_can_queue':
drivers/scsi/megaraid/megaraid_sas_fusion.c:326:39: warning: variable
'reg_set' set but not used [-Wunused-but-set-variable]
  struct megasas_register_set __iomem *reg_set;
                                       ^~~~~~~
Fixes: de516379e85f ("scsi: megaraid_sas: changes to function prototypes")
Signed-off-by: Qian Cai <cai@....pw>
---
 drivers/scsi/megaraid/megaraid_sas_fusion.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index a32b3f0fcd15..e8092d59d575 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -323,9 +323,6 @@ inline void megasas_return_cmd_fusion(struct megasas_instance *instance,
 {
 	u16 cur_max_fw_cmds = 0;
 	u16 ldio_threshold = 0;
-	struct megasas_register_set __iomem *reg_set;
-
-	reg_set = instance->reg_set;
 
 	/* ventura FW does not fill outbound_scratch_pad_2 with queue depth */
 	if (instance->adapter_type < VENTURA_SERIES)
-- 
1.8.3.1