* [PATCH 4.9 185/218] virtio_console: eliminate anonymous module_init & module_exit
[not found] <20220418121158.636999985@linuxfoundation.org>
@ 2022-04-18 12:14 ` Greg Kroah-Hartman
0 siblings, 0 replies; only message in thread
From: Greg Kroah-Hartman @ 2022-04-18 12:14 UTC (permalink / raw)
To: linux-kernel
Cc: Sasha Levin, Arnd Bergmann, Amit Shah, Greg Kroah-Hartman,
Randy Dunlap, stable, virtualization
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit fefb8a2a941338d871e2d83fbd65fbfa068857bd ]
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
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Amit Shah <amit@kernel.org>
Cc: virtualization@lists.linux-foundation.org
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220316192010.19001-3-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/virtio_console.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index a6b6dc204c1f..ba4c546db756 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -2284,7 +2284,7 @@ static struct virtio_driver virtio_rproc_serial = {
.remove = virtcons_remove,
};
-static int __init init(void)
+static int __init virtio_console_init(void)
{
int err;
@@ -2321,7 +2321,7 @@ static int __init init(void)
return err;
}
-static void __exit fini(void)
+static void __exit virtio_console_fini(void)
{
reclaim_dma_bufs();
@@ -2331,8 +2331,8 @@ static void __exit fini(void)
class_destroy(pdrvdata.class);
debugfs_remove_recursive(pdrvdata.debugfs_dir);
}
-module_init(init);
-module_exit(fini);
+module_init(virtio_console_init);
+module_exit(virtio_console_fini);
MODULE_DESCRIPTION("Virtio console driver");
MODULE_LICENSE("GPL");
--
2.35.1
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