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

Message ID 20220316192010.19001-8-rdunlap@infradead.org
State New
Headers show
Series treewide: eliminate anonymous module_init & module_exit | expand

Commit Message

Randy Dunlap March 16, 2022, 7:20 p.m. UTC 
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(-)

Comments

Shuah Khan March 18, 2022, 10:45 p.m. UTC | #1 
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@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");
> 

Thanks for fixing this.

Acked-by: Shuah Khan <skhan@linuxfoundation.org>

thanks,
-- Shuah
diff mbox series

Patch

--- 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");