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virtio_blk: eliminate anonymous module_init & module_exit

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Eliminate anonymous module_init() and module_exit(), which can lead to
confusion or ambiguity when reading System.map, crashes/oops/bugs,
or an initcall_debug log.

Give each of these init and exit functions unique driver-specific
names to eliminate the anonymous names.

Example 1: (System.map)
 ffffffff832fc78c t init
 ffffffff832fc79e t init
 ffffffff832fc8f8 t init

Example 2: (initcall_debug log)
 calling  init+0x0/0x12 @ 1
 initcall init+0x0/0x12 returned 0 after 15 usecs
 calling  init+0x0/0x60 @ 1
 initcall init+0x0/0x60 returned 0 after 2 usecs
 calling  init+0x0/0x9a @ 1
 initcall init+0x0/0x9a returned 0 after 74 usecs

Fixes: e467cde23818 ("Block driver using virtio.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220316192010.19001-2-rdunlap@infradead.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Randy Dunlap 2022-03-16 12:20:02 -07:00 committed by Jens Axboe
parent 85d9abcd73
commit bcfe9b6cbb
1 changed files with 4 additions and 4 deletions
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8
drivers/block/virtio_blk.c
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@ -1022,7 +1022,7 @@ static struct virtio_driver virtio_blk = {
#endif
};
static int __init init(void)
static int __init virtio_blk_init(void)
{
int error;
@ -1048,14 +1048,14 @@ out_destroy_workqueue:
return error;
}
static void __exit fini(void)
static void __exit virtio_blk_fini(void)
{
unregister_virtio_driver(&virtio_blk);
unregister_blkdev(major, "virtblk");
destroy_workqueue(virtblk_wq);
}
module_init(init);
module_exit(fini);
module_init(virtio_blk_init);
module_exit(virtio_blk_fini);
MODULE_DEVICE_TABLE(virtio, id_table);
MODULE_DESCRIPTION("Virtio block driver");