linux-kernel - [RFC PATCH 15/21] ubi: use lib tagset init helper

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Message-ID: <20221005032257.80681-16-kch@nvidia.com>
Date:   Tue, 4 Oct 2022 20:22:51 -0700
From:   Chaitanya Kulkarni <kch@...dia.com>
To:     <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-omap@...r.kernel.org>, <linux-remoteproc@...r.kernel.org>,
        <linux-mmc@...r.kernel.org>, <linux-mtd@...ts.infradead.org>,
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Subject: [RFC PATCH 15/21] ubi: use lib tagset init helper

Use the block layer helper to initialize the common fields of tag_set
such as blk_mq_ops, number of h/w queues, queue depth, command size,
numa_node, timeout, BLK_MQ_F_XXX flags, driver data. This initialization
is spread all over the block drivers. This avoids the code repetation of
the inialization code of the tag set in current block drivers and any
future ones.

Signed-off-by: Chaitanya Kulkarni <kch@...dia.com>
---
 drivers/mtd/ubi/block.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c
index 4cf67a2a0d04..809e946cfc93 100644
--- a/drivers/mtd/ubi/block.c
+++ b/drivers/mtd/ubi/block.c
@@ -398,14 +398,9 @@ int ubiblock_create(struct ubi_volume_info *vi)
 	dev->vol_id = vi->vol_id;
 	dev->leb_size = vi->usable_leb_size;
 
-	dev->tag_set.ops = &ubiblock_mq_ops;
-	dev->tag_set.queue_depth = 64;
-	dev->tag_set.numa_node = NUMA_NO_NODE;
-	dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
-	dev->tag_set.cmd_size = sizeof(struct ubiblock_pdu);
-	dev->tag_set.driver_data = dev;
-	dev->tag_set.nr_hw_queues = 1;
-
+	blk_mq_init_tag_set(&dev->tag_set, &ubiblock_mq_ops, 1, 64,
+			sizeof(struct ubiblock_pdu), NUMA_NO_NODE, 0,
+			BLK_MQ_F_SHOULD_MERGE, dev);
 	ret = blk_mq_alloc_tag_set(&dev->tag_set);
 	if (ret) {
 		dev_err(disk_to_dev(dev->gd), "blk_mq_alloc_tag_set failed");
-- 
2.29.0