From 7c7c7f01cc5e3e423120a4848a73dd5e4586f2f9 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Wed, 11 Jan 2012 19:30:38 +0000 Subject: [PATCH] vhost-net: add module alias (v2.1) By adding some module aliases, programs (or users) won't have to explicitly call modprobe. Vhost-net will always be available if built into the kernel. It does require assigning a permanent minor number for depmod to work. Also: - use C99 style initialization. - add missing entry in documentation for loop-control Signed-off-by: Stephen Hemminger Acked-By: Kay Sievers Signed-off-by: David S. Miller --- Documentation/devices.txt | 3 +++ drivers/vhost/net.c | 8 +++++--- include/linux/miscdevice.h | 1 + 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/Documentation/devices.txt b/Documentation/devices.txt index cec8864..0038318 100644 --- a/Documentation/devices.txt +++ b/Documentation/devices.txt @@ -447,6 +447,9 @@ Your cooperation is appreciated. 234 = /dev/btrfs-control Btrfs control device 235 = /dev/autofs Autofs control device 236 = /dev/mapper/control Device-Mapper control device + 237 = /dev/loop-control Loopback control device + 238 = /dev/vhost-net Host kernel accelerator for virtio net + 240-254 Reserved for local use 255 Reserved for MISC_DYNAMIC_MINOR diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 882a51f..9dab1f5 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -856,9 +856,9 @@ static const struct file_operations vhost_net_fops = { }; static struct miscdevice vhost_net_misc = { - MISC_DYNAMIC_MINOR, - "vhost-net", - &vhost_net_fops, + .minor = VHOST_NET_MINOR, + .name = "vhost-net", + .fops = &vhost_net_fops, }; static int vhost_net_init(void) @@ -879,3 +879,5 @@ MODULE_VERSION("0.0.1"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Michael S. Tsirkin"); MODULE_DESCRIPTION("Host kernel accelerator for virtio net"); +MODULE_ALIAS_MISCDEV(VHOST_NET_MINOR); +MODULE_ALIAS("devname:vhost-net"); diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h index 3208524..0549d211 100644 --- a/include/linux/miscdevice.h +++ b/include/linux/miscdevice.h @@ -42,6 +42,7 @@ #define AUTOFS_MINOR 235 #define MAPPER_CTRL_MINOR 236 #define LOOP_CTRL_MINOR 237 +#define VHOST_NET_MINOR 238 #define MISC_DYNAMIC_MINOR 255 struct device; -- 2.7.4