linux-kernel - [PATCH 3/4] scsi: hisi_sas: Remove cond_resched() in bottom half of interrupt

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Message-ID: <20250822075951.2051639-4-liyihang9@h-partners.com>
Date: Fri, 22 Aug 2025 15:59:50 +0800
From: Yihang Li <liyihang9@...artners.com>
To: <martin.petersen@...cle.com>, <James.Bottomley@...senPartnership.com>
CC: <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linuxarm@...wei.com>, <liyihang9@...wei.com>, <liuyonglong@...wei.com>,
	<prime.zeng@...ilicon.com>
Subject: [PATCH 3/4] scsi: hisi_sas: Remove cond_resched() in bottom half of interrupt

After changing threaded irq to tasklet, the tasklet function executes in
the soft interrupt context, and soft interrupt handlers cannot sleep or
be scheduled. Therefore, remove cond_resched() in complete_v3_hw().

Signed-off-by: Yihang Li <liyihang9@...artners.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 967cf5181fed..58bdff8b3665 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2553,7 +2553,6 @@ static int complete_v3_hw(struct hisi_sas_cq *cq)
 	/* update rd_point */
 	cq->rd_point = rd_point;
 	hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
-	cond_resched();
 
 	return completed;
 }
-- 
2.33.0