On Wed, Jan 11, 2012 at 12:54 PM, Stephen Hemminger <shemminger@xxxxxxxxxx> wrote:
CC: alan@xxxxxxxxxxxxxxx
CC: device@xxxxxxxxxx
include/linux/miscdevice.h:
/*
* These allocations are managed by device@xxxxxxxxxx. If you use an
* entry that is not in assigned your entry may well be moved and
* reassigned, or set dynamic if a fixed value is not justified.
*/
By adding the a module alias, 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.
Choose one next to TUN since this driver is related to it.
Also, use C99 style initialization.
Signed-off-by: Stephen Hemminger <shemminger@xxxxxxxxxx>
---
drivers/vhost/net.c | 8 +++++---
include/linux/miscdevice.h | 1 +
2 files changed, 6 insertions(+), 3 deletions(-)
--- a/drivers/vhost/net.c 2012-01-10 10:56:58.883179194 -0800
+++ b/drivers/vhost/net.c 2012-01-10 19:48:23.650225892 -0800
@@ -856,9 +856,9 @@ static const struct file_operations vhos
};
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");
--- a/include/linux/miscdevice.h 2012-01-10 10:56:59.779189436 -0800
+++ b/include/linux/miscdevice.h 2012-01-10 19:49:56.091748210 -0800
@@ -31,6 +31,7 @@
#define I2O_MINOR 166
#define MICROCODE_MINOR 184
#define TUN_MINOR 200
+#define VHOST_NET_MINOR 201
CC: alan@xxxxxxxxxxxxxxx
CC: device@xxxxxxxxxx
include/linux/miscdevice.h:
/*
* These allocations are managed by device@xxxxxxxxxx. If you use an
* entry that is not in assigned your entry may well be moved and
* reassigned, or set dynamic if a fixed value is not justified.
*/
#define MWAVE_MINOR 219 /* ACP/Mwave Modem */
#define MPT_MINOR 220
#define MPT2SAS_MINOR 221
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