[PATCH 7/9] usb: usbip: eliminate anonymous module_init & module_exit

Randy Dunlap
2022-03-16T19:20:50Z

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: 80fd9cd52de6 ("usbip: vudc: Add VUDC main file")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Krzysztof Opasiak <k.opasiak@samsung.com>
Cc: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Valentina Manea <valentina.manea.m@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
---
drivers/usb/usbip/vudc_main.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

--- lnx-517-rc8.orig/drivers/usb/usbip/vudc_main.c
+++ lnx-517-rc8/drivers/usb/usbip/vudc_main.c
@@ -28,7 +28,7 @@ static struct platform_driver vudc_drive

static struct list_head vudc_devices = LIST_HEAD_INIT(vudc_devices);

-static int __init init(void)
+static int __init vudc_init(void)
{
int retval = -ENOMEM;
int i;
@@ -86,9 +86,9 @@ cleanup:
out:
return retval;
}
-module_init(init);
+module_init(vudc_init);

-static void __exit cleanup(void)
+static void __exit vudc_cleanup(void)
{
struct vudc_device *udc_dev = NULL, *udc_dev2 = NULL;

@@ -103,7 +103,7 @@ static void __exit cleanup(void)
}
platform_driver_unregister(&vudc_driver);
}
-module_exit(cleanup);
+module_exit(vudc_cleanup);

MODULE_DESCRIPTION("USB over IP Device Controller");
MODULE_AUTHOR("Krzysztof Opasiak, Karol Kosik, Igor Kotrasinski");