Re: [PATCH 5/9] virtio-scsi: eliminate anonymous module_init & module_exit
From: Jason Wang <hidden>
Date: 2022-03-17 03:26:20
Also in:
linux-block, linux-crypto, linux-rdma, linux-scsi, linux-usb, lkml, netfilter-devel, nouveau, virtualization
On Thu, Mar 17, 2022 at 3:24 AM Randy Dunlap [off-list ref] wrote:
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: 4fe74b1cb051 ("[SCSI] virtio-scsi: SCSI driver for QEMU based virtual machines")
Signed-off-by: Randy Dunlap <redacted>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <redacted>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: "James E.J. Bottomley" <redacted>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Cc: virtualization@lists.linux-foundation.orgAcked-by: Jason Wang <redacted>
quoted hunk ↗ jump to hunk
--- drivers/scsi/virtio_scsi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)--- lnx-517-rc8.orig/drivers/scsi/virtio_scsi.c +++ lnx-517-rc8/drivers/scsi/virtio_scsi.c@@ -988,7 +988,7 @@ static struct virtio_driver virtio_scsi_ .remove = virtscsi_remove, }; -static int __init init(void) +static int __init virtio_scsi_init(void) { int ret = -ENOMEM;@@ -1020,14 +1020,14 @@ error: return ret; } -static void __exit fini(void) +static void __exit virtio_scsi_fini(void) { unregister_virtio_driver(&virtio_scsi_driver); mempool_destroy(virtscsi_cmd_pool); kmem_cache_destroy(virtscsi_cmd_cache); } -module_init(init); -module_exit(fini); +module_init(virtio_scsi_init); +module_exit(virtio_scsi_fini); MODULE_DEVICE_TABLE(virtio, id_table); MODULE_DESCRIPTION("Virtio SCSI HBA driver");