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From:   Randy Dunlap <rdunlap@infradead.org>
To:     linux-kernel@vger.kernel.org
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Subject: [PATCH 7/9] usb: usbip: eliminate anonymous module_init & module_exit
Date:   Wed, 16 Mar 2022 12:20:08 -0700
Message-Id: <20220316192010.19001-8-rdunlap@infradead.org>
In-Reply-To: <20220316192010.19001-1-rdunlap@infradead.org>
References: <20220316192010.19001-1-rdunlap@infradead.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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");