linux-kernel - [PATCH 1/3] ublk: remove unnecessary NULL check in ublk_rq_has

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Message-Id: <20230207070033.367423-2-ZiyangZhang@linux.alibaba.com>
Date:   Tue,  7 Feb 2023 15:00:31 +0800
From:   Ziyang Zhang <ZiyangZhang@...ux.alibaba.com>
To:     axboe@...nel.dk, ming.lei@...hat.com
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        joseph.qi@...ux.alibaba.com,
        Ziyang Zhang <ZiyangZhang@...ux.alibaba.com>
Subject: [PATCH 1/3] ublk: remove unnecessary NULL check in ublk_rq_has_data()

bio_has_data() allows a NULL bio so the NULL check in
ublk_rq_has_data() is unnecessary.

Fixes: 71f28f3136af ("ublk_drv: add io_uring based userspace block driver")
Signed-off-by: Ziyang Zhang <ZiyangZhang@...ux.alibaba.com>
---
 drivers/block/ublk_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index c932e9ea5a0f..55fccce68a9c 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -322,7 +322,7 @@ static inline struct ublk_queue *ublk_get_queue(struct ublk_device *dev,
 
 static inline bool ublk_rq_has_data(const struct request *rq)
 {
-	return rq->bio && bio_has_data(rq->bio);
+	return bio_has_data(rq->bio);
 }
 
 static inline struct ublksrv_io_desc *ublk_get_iod(struct ublk_queue *ubq,
-- 
2.18.4