From 143dcec2f7123b630b9e2c01c31b01a383dc15ff Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Tue, 8 Nov 2005 21:34:36 -0800 Subject: [PATCH] ppc64: add MODALIAS= for vio bus A non-broken udev would autoload also the drivers for devices on the pseries vio bus, like ibmveth, ibmvscsic and hvsc. This is similar to pci, usb and ieee1394: /lib/modules/`uname -r`/modules.alias alias vio:TvscsiSIBM,v-scsi* ibmvscsic alias vio:TnetworkSIBM,l-lan* ibmveth alias vio:Tserial-serverShvterm2* hvcs /events/debug.00004.pci.add.1394:MODALIAS='pci:v00001014d00000188sv00000000sd00000000bc06sc04i0f' /events/debug.00005.pci.add.1509:MODALIAS='pci:v00008086d00001229sv00001014sd000001FFbc02sc00i00' /events/debug.00026.vio.add.1519:MODALIAS='vio:TserialShvterm1' /events/debug.00027.vio.add.1446:MODALIAS='vio:TvscsiSIBM,v-scsi' /events/debug.00028.vio.add.1451:MODALIAS='vio:TnetworkSIBM,l-lan' modprobe -v vio:TnetworkSIBM,l-lan insmod /lib/modules/2.6.14-20051030_vio-ppc64/kernel/drivers/net/ibmveth.ko Signed-off-by: Olaf Hering Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/kernel/vio.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'arch/powerpc') diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 97082a4203a..71a6addf9f7 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -21,6 +21,7 @@ #include #include #include +#include static const struct vio_device_id *vio_match_device( const struct vio_device_id *, const struct vio_dev *); @@ -265,7 +266,33 @@ static int vio_bus_match(struct device *dev, struct device_driver *drv) return (ids != NULL) && (vio_match_device(ids, vio_dev) != NULL); } +static int vio_hotplug(struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size) +{ + const struct vio_dev *vio_dev = to_vio_dev(dev); + char *cp; + int length; + + if (!num_envp) + return -ENOMEM; + + if (!vio_dev->dev.platform_data) + return -ENODEV; + cp = (char *)get_property(vio_dev->dev.platform_data, "compatible", &length); + if (!cp) + return -ENODEV; + + envp[0] = buffer; + length = scnprintf(buffer, buffer_size, "MODALIAS=vio:T%sS%s", + vio_dev->type, cp); + if (buffer_size - length <= 0) + return -ENOMEM; + envp[1] = NULL; + return 0; +} + struct bus_type vio_bus_type = { .name = "vio", + .hotplug = vio_hotplug, .match = vio_bus_match, }; -- cgit v1.2.3