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ubd: remove ubd_disk_register

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Fold it into the only caller to remove lots of references to the
global ubd_devs array.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Richard Weinberger <richard@nod.at>
Link: https://lore.kernel.org/r/20240222072417.3773131-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2024-02-22 08:24:12 +01:00 committed by Jens Axboe
parent 32621ad7a7
commit 0267e9cac6
1 changed files with 15 additions and 22 deletions
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37
arch/um/drivers/ubd_kern.c
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@ -849,27 +849,6 @@ static const struct attribute_group *ubd_attr_groups[] = {
NULL,
};
static int ubd_disk_register(int major, u64 size, int unit,
struct gendisk *disk)
{
disk->major = major;
disk->first_minor = unit << UBD_SHIFT;
disk->minors = 1 << UBD_SHIFT;
disk->fops = &ubd_blops;
set_capacity(disk, size / 512);
sprintf(disk->disk_name, "ubd%c", 'a' + unit);
ubd_devs[unit].pdev.id = unit;
ubd_devs[unit].pdev.name = DRIVER_NAME;
ubd_devs[unit].pdev.dev.release = ubd_device_release;
dev_set_drvdata(&ubd_devs[unit].pdev.dev, &ubd_devs[unit]);
platform_device_register(&ubd_devs[unit].pdev);
disk->private_data = &ubd_devs[unit];
disk->queue = ubd_devs[unit].queue;
return device_add_disk(&ubd_devs[unit].pdev.dev, disk, ubd_attr_groups);
}
#define ROUND_BLOCK(n) ((n + (SECTOR_SIZE - 1)) & (-SECTOR_SIZE))
static const struct blk_mq_ops ubd_mq_ops = {
@ -916,7 +895,21 @@ static int ubd_add(int n, char **error_out)
ubd_dev->queue = disk->queue;
blk_queue_write_cache(ubd_dev->queue, true, false);
err = ubd_disk_register(UBD_MAJOR, ubd_dev->size, n, disk);
disk->major = UBD_MAJOR;
disk->first_minor = n << UBD_SHIFT;
disk->minors = 1 << UBD_SHIFT;
disk->fops = &ubd_blops;
set_capacity(disk, ubd_dev->size / 512);
sprintf(disk->disk_name, "ubd%c", 'a' + n);
disk->private_data = ubd_dev;
ubd_dev->pdev.id = n;
ubd_dev->pdev.name = DRIVER_NAME;
ubd_dev->pdev.dev.release = ubd_device_release;
dev_set_drvdata(&ubd_dev->pdev.dev, ubd_dev);
platform_device_register(&ubd_dev->pdev);
err = device_add_disk(&ubd_dev->pdev.dev, disk, ubd_attr_groups);
if (err)
goto out_cleanup_disk;