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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: SurajSonawane2415 <surajsonawane0215@gmail.com>,
	Jens Axboe <axboe@kernel.dk>, Sasha Levin <sashal@kernel.org>,
	linux-block@vger.kernel.org
Subject: [PATCH AUTOSEL 5.15 03/10] block: Fix elevator_get_default() checking for NULL q->tag_set
Date: Wed, 23 Oct 2024 10:32:24 -0400	[thread overview]
Message-ID: <20241023143235.2982363-3-sashal@kernel.org> (raw)
In-Reply-To: <20241023143235.2982363-1-sashal@kernel.org>

From: SurajSonawane2415 <surajsonawane0215@gmail.com>

[ Upstream commit b402328a24ee7193a8ab84277c0c90ae16768126 ]

elevator_get_default() and elv_support_iosched() both check for whether
or not q->tag_set is non-NULL, however it's not possible for them to be
NULL. This messes up some static checkers, as the checking of tag_set
isn't consistent.

Remove the checks, which both simplifies the logic and avoids checker
errors.

Signed-off-by: SurajSonawane2415 <surajsonawane0215@gmail.com>
Link: https://lore.kernel.org/r/20241007111416.13814-1-surajsonawane0215@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/elevator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/elevator.c b/block/elevator.c
index 1b5e57f6115f3..a98e8356f1b87 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -620,7 +620,7 @@ int elevator_switch_mq(struct request_queue *q,
 static inline bool elv_support_iosched(struct request_queue *q)
 {
 	if (!queue_is_mq(q) ||
-	    (q->tag_set && (q->tag_set->flags & BLK_MQ_F_NO_SCHED)))
+	    (q->tag_set->flags & BLK_MQ_F_NO_SCHED))
 		return false;
 	return true;
 }
@@ -631,7 +631,7 @@ static inline bool elv_support_iosched(struct request_queue *q)
  */
 static struct elevator_type *elevator_get_default(struct request_queue *q)
 {
-	if (q->tag_set && q->tag_set->flags & BLK_MQ_F_NO_SCHED_BY_DEFAULT)
+	if (q->tag_set->flags & BLK_MQ_F_NO_SCHED_BY_DEFAULT)
 		return NULL;
 
 	if (q->nr_hw_queues != 1 &&
-- 
2.43.0


  parent reply	other threads:[~2024-10-23 14:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-23 14:32 [PATCH AUTOSEL 5.15 01/10] 9p: Avoid creating multiple slab caches with the same name Sasha Levin
2024-10-23 14:32 ` [PATCH AUTOSEL 5.15 02/10] irqchip/ocelot: Fix trigger register address Sasha Levin
2024-10-23 14:32 ` Sasha Levin [this message]
2024-10-23 14:32 ` [PATCH AUTOSEL 5.15 04/10] HID: multitouch: Add support for B2402FVA track point Sasha Levin
2024-10-23 14:32 ` [PATCH AUTOSEL 5.15 05/10] HID: multitouch: Add quirk for HONOR MagicBook Art 14 touchpad Sasha Levin
2024-10-23 14:32 ` [PATCH AUTOSEL 5.15 06/10] bpf: use kvzmalloc to allocate BPF verifier environment Sasha Levin
2024-10-23 14:32 ` [PATCH AUTOSEL 5.15 07/10] crypto: marvell/cesa - Disable hash algorithms Sasha Levin
2024-10-23 14:32 ` [PATCH AUTOSEL 5.15 08/10] sound: Make CONFIG_SND depend on INDIRECT_IOMEM instead of UML Sasha Levin
2024-10-23 14:32 ` [PATCH AUTOSEL 5.15 09/10] drm/vmwgfx: Limit display layout ioctl array size to VMWGFX_NUM_DISPLAY_UNITS Sasha Levin
2024-10-23 14:32 ` [PATCH AUTOSEL 5.15 10/10] powerpc/powernv: Free name on error in opal_event_init() Sasha Levin

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