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block: remove devnode callback from struct block_device_operations

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With the removal of the pktcdvd driver, there are no in-kernel users of
the devnode callback in struct block_device_operations, so it can be
safely removed.  If it is needed for new block drivers in the future, it
can be brought back.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20221203140747.1942969-1-gregkh@linuxfoundation.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Greg Kroah-Hartman 2022-12-03 15:07:47 +01:00 committed by Jens Axboe
parent 368c7f1f8a
commit 85d6ce58e4
2 changed files with 0 additions and 12 deletions
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11
block/genhd.c
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@ -1196,21 +1196,10 @@ struct class block_class = {
.dev_uevent = block_uevent, .dev_uevent = block_uevent,
}; };
static char *block_devnode(struct device *dev, umode_t *mode,
kuid_t *uid, kgid_t *gid)
{
struct gendisk *disk = dev_to_disk(dev);
if (disk->fops->devnode)
return disk->fops->devnode(disk, mode);
return NULL;
}
const struct device_type disk_type = { const struct device_type disk_type = {
.name = "disk", .name = "disk",
.groups = disk_attr_groups, .groups = disk_attr_groups,
.release = disk_release, .release = disk_release,
.devnode = block_devnode,
}; };
#ifdef CONFIG_PROC_FS #ifdef CONFIG_PROC_FS

1
include/linux/blkdev.h
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@ -1395,7 +1395,6 @@ struct block_device_operations {
void (*swap_slot_free_notify) (struct block_device *, unsigned long); void (*swap_slot_free_notify) (struct block_device *, unsigned long);
int (*report_zones)(struct gendisk *, sector_t sector, int (*report_zones)(struct gendisk *, sector_t sector,
unsigned int nr_zones, report_zones_cb cb, void *data); unsigned int nr_zones, report_zones_cb cb, void *data);
char *(*devnode)(struct gendisk *disk, umode_t *mode);
/* returns the length of the identifier or a negative errno: */ /* returns the length of the identifier or a negative errno: */
int (*get_unique_id)(struct gendisk *disk, u8 id[16], int (*get_unique_id)(struct gendisk *disk, u8 id[16],
enum blk_unique_id id_type); enum blk_unique_id id_type);