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

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On 3/16/22 1:20 PM, Randy Dunlap 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: 80fd9cd52de6 ("usbip: vudc: Add VUDC main file")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx>
Cc: Igor Kotrasinski <i.kotrasinsk@xxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Valentina Manea <valentina.manea.m@xxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Cc: linux-usb@xxxxxxxxxxxxxxx
---
  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");


Thanks for fixing this.

Acked-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>

thanks,
-- Shuah



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