linux-kernel - [PATCH v3] scsi: sli4: Remove code duplication

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Message-Id: <20230817114301.17601-1-coolrrsh@gmail.com>
Date:   Thu, 17 Aug 2023 17:13:01 +0530
From:   coolrrsh@...il.com
To:     james.smart@...adcom.com, ram.vegesna@...adcom.com,
        jejb@...ux.ibm.com, martin.petersen@...cle.com,
        rdunlap@...radead.org, linux-scsi@...r.kernel.org,
        target-devel@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     linux-kernel-mentees@...ts.linuxfoundation.org,
        Rajeshwar R Shinde <coolrrsh@...il.com>
Subject: [PATCH v3] scsi: sli4: Remove code duplication

From: Rajeshwar R Shinde <coolrrsh@...il.com>

In the function sli_xmit_bls_rsp64_wqe, the 'if' and 'else' conditions
evaluates the same expression and gives same output. Also, params->s_id
shall not be equal to U32_MAX. Therefore removing the unused code.

This fixes coccinelle warning such as:
drivers/scsi/elx/libefc_sli/sli4.c:2320:2-4: WARNING: possible
condition with no effect (if == else)

Signed-off-by: Rajeshwar R Shinde <coolrrsh@...il.com>
---
v1->v2
Modified patch and the corrected the warnings using checkpatch.
v2->v3
Modified patch details keeping HW descriptor variable.

---
 drivers/scsi/elx/libefc_sli/sli4.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/elx/libefc_sli/sli4.c b/drivers/scsi/elx/libefc_sli/sli4.c
index 8f96049f62dd..5e7fb110bc3f 100644
--- a/drivers/scsi/elx/libefc_sli/sli4.c
+++ b/drivers/scsi/elx/libefc_sli/sli4.c
@@ -2317,12 +2317,8 @@ sli_xmit_bls_rsp64_wqe(struct sli4 *sli, void *buf,
 		SLI4_GENERIC_CONTEXT_VPI << SLI4_BLS_RSP_WQE_CT_SHFT;
 		bls->context_tag = cpu_to_le16(params->vpi);
 
-		if (params->s_id != U32_MAX)
-			bls->local_n_port_id_dword |=
-				cpu_to_le32(params->s_id & 0x00ffffff);
-		else
-			bls->local_n_port_id_dword |=
-				cpu_to_le32(params->s_id & 0x00ffffff);
+		bls->local_n_port_id_dword |=
+			cpu_to_le32(params->s_id & 0x00ffffff);
 
 		dw_ridflags = (dw_ridflags & ~SLI4_BLS_RSP_RID) |
 			       (params->d_id & SLI4_BLS_RSP_RID);
-- 
2.25.1