linux-kernel - [RFC PATCH 17/18] z2ram: use init disk helper

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Message-ID: <20221005050027.39591-18-kch@nvidia.com>
Date:   Tue, 4 Oct 2022 22:00:26 -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 17/18] z2ram: 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/z2ram.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index c1e85f356e4d..74432fbfe42c 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -324,11 +324,8 @@ static int z2ram_register_disk(int minor)
 	if (IS_ERR(disk))
 		return PTR_ERR(disk);
 
-	disk->major = Z2RAM_MAJOR;
-	disk->first_minor = minor;
-	disk->minors = 1;
 	disk->flags |= GENHD_FL_NO_PART;
-	disk->fops = &z2_fops;
+	init_disk(disk, Z2RAM_MAJOR, minor, 1, 0, NULL, &z2_fops);
 	if (minor)
 		sprintf(disk->disk_name, "z2ram%d", minor);
 	else
-- 
2.29.0