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authorLucas De Marchi <lucas.demarchi@intel.com>2014-02-18 02:19:26 -0300
committerMarcel Holtmann <marcel@holtmann.org>2014-02-18 09:49:04 -0800
commitb075dd40c95d11c2c8690f6c4d6232fc0d9e7f56 (patch)
treeaa1b247224669876a1fda5ce414a45984139a902 /drivers/bluetooth/hci_vhci.c
parent2426f3a5945ce1dfdb04aaf26748a987be49ff7c (diff)
downloadop-kernel-dev-b075dd40c95d11c2c8690f6c4d6232fc0d9e7f56.zip
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Bluetooth: allocate static minor for vhci
Commit bfacbb9 (Bluetooth: Use devname:vhci module alias for virtual HCI driver) added the module alias to hci_vhci module so it's possible to create the /dev/vhci node. However creating an alias without specifying the minor doesn't allow us to create the node ahead, triggerring module auto-load when it's first accessed. Starting with depmod from kmod 16 we started to warn if there's a devname alias without specifying the major and minor. Let's do the same done for uhid, kvm, fuse and others, specifying a fixed minor. In systems with systemd as the init the following will happen: on early boot systemd will call "kmod static-nodes" to read /lib/modules/$(uname -r)/modules.devname and then create the nodes. When first accessed these "dead" nodes will trigger the module loading. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth/hci_vhci.c')
-rw-r--r--drivers/bluetooth/hci_vhci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 1ef6990..add1c6a 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -359,7 +359,7 @@ static const struct file_operations vhci_fops = {
static struct miscdevice vhci_miscdev= {
.name = "vhci",
.fops = &vhci_fops,
- .minor = MISC_DYNAMIC_MINOR,
+ .minor = VHCI_MINOR,
};
static int __init vhci_init(void)
@@ -385,3 +385,4 @@ MODULE_DESCRIPTION("Bluetooth virtual HCI driver ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_ALIAS("devname:vhci");
+MODULE_ALIAS_MISCDEV(VHCI_MINOR);
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