linux-kernel - [RFC PATCH 15/18] swim: use init disk helper

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Message-ID: <20221005050027.39591-16-kch@nvidia.com>
Date:   Tue, 4 Oct 2022 22:00:24 -0700
From:   Chaitanya Kulkarni <kch@...dia.com>
To:     <ogeert@...ux-m68k.org>, <linux-block@...r.kernel.org>,
        <linux-m68k@...ts.linux-m68k.org>, <linux-kernel@...r.kernel.org>,
        <drbd-dev@...ts.linbit.com>, <nbd@...er.debian.org>,
        <linux-mtd@...ts.infradead.org>
CC:     <axboe@...nel.dk>, <philipp.reisner@...bit.com>,
        <lars.ellenberg@...bit.com>, <christoph.boehmwalder@...bit.com>,
        <efremov@...ux.com>, <josef@...icpanda.com>, <tim@...erelk.net>,
        <haris.iqbal@...os.com>, <jinpu.wang@...os.com>, <richard@....at>,
        <miquel.raynal@...tlin.com>, <vigneshr@...com>, <kch@...dia.com>,
        <mcgrof@...nel.org>, <hare@...e.de>,
        <damien.lemoal@...nsource.wdc.com>, <johannes.thumshirn@....com>,
        <bvanassche@....org>, <ming.lei@...hat.com>,
        <vincent.fu@...sung.com>, <shinichiro.kawasaki@....com>
Subject: [RFC PATCH 15/18] swim: use init disk helper

Add and use the helper to initialize the common fields of struct gendisk
such as major, first_minor, minors, disk_name, private_data, and ops.
This initialization is spread all over the block drivers. This avoids
code repetation of inialization code of gendisk in current block drivers
and any future ones.

Signed-off-by: Chaitanya Kulkarni <kch@...dia.com>
---
 drivers/block/swim.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 42b4b6828690..7fa4b2766367 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -835,15 +835,12 @@ static int swim_floppy_init(struct swim_priv *swd)
 
 	for (drive = 0; drive < swd->floppy_count; drive++) {
 		swd->unit[drive].disk->flags = GENHD_FL_REMOVABLE;
-		swd->unit[drive].disk->major = FLOPPY_MAJOR;
-		swd->unit[drive].disk->first_minor = drive;
-		swd->unit[drive].disk->minors = 1;
 		sprintf(swd->unit[drive].disk->disk_name, "fd%d", drive);
-		swd->unit[drive].disk->fops = &floppy_fops;
 		swd->unit[drive].disk->flags |= GENHD_FL_NO_PART;
 		swd->unit[drive].disk->events = DISK_EVENT_MEDIA_CHANGE;
 		swd->unit[drive].disk->private_data = &swd->unit[drive];
-		set_capacity(swd->unit[drive].disk, 2880);
+		init_disk(swd->unit[drive].disk, FLOPPY_MAJOR, drive, 1, 2880,
+				&swd->unit[drive], &floopy_dops);
 		err = add_disk(swd->unit[drive].disk);
 		if (err)
 			goto exit_put_disks;
-- 
2.29.0