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[85.114.29.218]) by smtp.gmail.com with ESMTPSA id b4-20020a05651c098400b002cc7925cf2bsm90679ljq.124.2023.12.18.06.09.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Dec 2023 06:09:39 -0800 (PST) From: Rand Deeb To: Hannes Reinecke , "James E . J . Bottomley" , "Martin K . Petersen" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: deeb.rand@confident.ru, lvc-project@linuxtesting.org, voskresenski.stanislav@confident.ru, Rand Deeb Subject: [PATCH] ahd: Remove Redundant Comparison in ahd_intr() Date: Mon, 18 Dec 2023 17:09:02 +0300 Message-Id: <20231218140902.36774-1-rand.sec96@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The 'ahd_intr()' function contained a redundant comparisonthat was always false. The comparison in question was: if ((intstat == 0xFF) && (ahd->features & AHD_REMOVABLE) != 0) The 'AHD_REMOVABLE' constant had a value of '0x00000'. Therefore, the condition 'ahd->features & AHD_REMOVABLE' was always '0', making the comparison unnecessary. This patch removes the redundant comparison, making the code clearer and more efficient. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Rand Deeb --- drivers/scsi/aic7xxx/aic79xx_core.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c index 98b02e7d38bb..4c790fe28f73 100644 --- a/drivers/scsi/aic7xxx/aic79xx_core.c +++ b/drivers/scsi/aic7xxx/aic79xx_core.c @@ -1008,9 +1008,7 @@ ahd_intr(struct ahd_softc *ahd) * Handle statuses that may invalidate our cached * copy of INTSTAT separately. */ - if (intstat == 0xFF && (ahd->features & AHD_REMOVABLE) != 0) { - /* Hot eject. Do nothing */ - } else if (intstat & HWERRINT) { + if (intstat & HWERRINT) { ahd_handle_hwerrint(ahd); } else if ((intstat & (PCIINT|SPLTINT)) != 0) { ahd->bus_intr(ahd); -- 2.34.1