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Bluetooth: allocate static minor for vhci

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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>
This commit is contained in:
Lucas De Marchi 2014-02-18 02:19:26 -03:00 • committed by Marcel Holtmann
parent 2426f3a594
commit b075dd40c9
3 changed files with 4 additions and 1 deletions
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1
include/linux/miscdevice.h
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@ -23,6 +23,7 @@
#define TEMP_MINOR 131 /* Temperature Sensor */
#define RTC_MINOR 135
#define EFI_RTC_MINOR 136 /* EFI Time services */
#define VHCI_MINOR 137
#define SUN_OPENPROM_MINOR 139
#define DMAPI_MINOR 140 /* DMAPI */
#define NVRAM_MINOR 144