linux-kernel - [PATCH] scsi: elx: libefc_sli: Optimize the same if/else blocks

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>] [day] [month] [year] [list]

Message-ID: <Y7n/6ls2xpUkiGQf@ubun2204.myguest.virtualbox.org>
Date:   Sun, 8 Jan 2023 04:57:38 +0530
From:   Deepak R Varma <drv@...lo.com>
To:     James Smart <james.smart@...adcom.com>,
        Ram Vegesna <ram.vegesna@...adcom.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, target-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Saurabh Singh Sengar <ssengar@...rosoft.com>,
        Praveen Kumar <kumarpraveen@...ux.microsoft.com>,
        Deepak R Varma <drv@...lo.com>
Subject: [PATCH] scsi: elx: libefc_sli: Optimize the same if/else blocks

The if and else branches have the exact same code, which then always
executes independent of the condition evaluation. Simplify the code by
removing the redundant branching.
Issue identified using the cond_no_effect Coccinelle semantic patch.

Signed-off-by: Deepak R Varma <drv@...lo.com>
---
 drivers/scsi/elx/libefc_sli/sli4.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/scsi/elx/libefc_sli/sli4.c b/drivers/scsi/elx/libefc_sli/sli4.c
index b8c048cdb17f..833fe4bd012e 100644
--- a/drivers/scsi/elx/libefc_sli/sli4.c
+++ b/drivers/scsi/elx/libefc_sli/sli4.c
@@ -2317,12 +2317,7 @@ 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);
--
2.34.1