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Message-Id: <20240929182103.21882-1-aleksandr.mikhalitsyn@canonical.com>
Date: Sun, 29 Sep 2024 20:21:03 +0200
From: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@...onical.com>
To: stefanha@...hat.com
Cc: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@...onical.com>,
Stefano Garzarella <sgarzare@...hat.com>,
"Michael S. Tsirkin" <mst@...hat.com>,
Jason Wang <jasowang@...hat.com>,
Eugenio PĂ©rez <eperezma@...hat.com>,
kvm@...r.kernel.org,
virtualization@...ts.linux.dev,
netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2] vhost/vsock: specify module version
Add an explicit MODULE_VERSION("0.0.1") specification for the vhost_vsock module.
It is useful because it allows userspace to check if vhost_vsock is there when it is
configured as a built-in.
This is what we have *without* this change and when vhost_vsock is configured
as a module and loaded:
$ ls -la /sys/module/vhost_vsock
total 0
drwxr-xr-x 5 root root 0 Sep 29 19:00 .
drwxr-xr-x 337 root root 0 Sep 29 18:59 ..
-r--r--r-- 1 root root 4096 Sep 29 20:05 coresize
drwxr-xr-x 2 root root 0 Sep 29 20:05 holders
-r--r--r-- 1 root root 4096 Sep 29 20:05 initsize
-r--r--r-- 1 root root 4096 Sep 29 20:05 initstate
drwxr-xr-x 2 root root 0 Sep 29 20:05 notes
-r--r--r-- 1 root root 4096 Sep 29 20:05 refcnt
drwxr-xr-x 2 root root 0 Sep 29 20:05 sections
-r--r--r-- 1 root root 4096 Sep 29 20:05 srcversion
-r--r--r-- 1 root root 4096 Sep 29 20:05 taint
--w------- 1 root root 4096 Sep 29 19:00 uevent
When vhost_vsock is configured as a built-in there is *no* /sys/module/vhost_vsock directory at all.
And this looks like an inconsistency.
With this change, when vhost_vsock is configured as a built-in we get:
$ ls -la /sys/module/vhost_vsock/
total 0
drwxr-xr-x 2 root root 0 Sep 26 15:59 .
drwxr-xr-x 100 root root 0 Sep 26 15:59 ..
--w------- 1 root root 4096 Sep 26 15:59 uevent
-r--r--r-- 1 root root 4096 Sep 26 15:59 version
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@...onical.com>
---
drivers/vhost/vsock.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 802153e23073..287ea8e480b5 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -956,6 +956,7 @@ static void __exit vhost_vsock_exit(void)
module_init(vhost_vsock_init);
module_exit(vhost_vsock_exit);
+MODULE_VERSION("0.0.1");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Asias He");
MODULE_DESCRIPTION("vhost transport for vsock ");
--
2.34.1
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