diff options
| -rw-r--r-- | drivers/virtio/virtio.c | 18 | ||||
| -rw-r--r-- | scripts/mod/file2alias.c | 18 |
2 files changed, 36 insertions, 0 deletions
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index f640e0b732b..15d7787dea8 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -20,10 +20,19 @@ static ssize_t status_show(struct device *_d, struct virtio_device *dev = container_of(_d,struct virtio_device,dev); return sprintf(buf, "0x%08x", dev->config->get_status(dev)); } +static ssize_t modalias_show(struct device *_d, + struct device_attribute *attr, char *buf) +{ + struct virtio_device *dev = container_of(_d,struct virtio_device,dev); + + return sprintf(buf, "virtio:d%08Xv%08X\n", + dev->id.device, dev->id.vendor); +} static struct device_attribute virtio_dev_attrs[] = { __ATTR_RO(device), __ATTR_RO(vendor), __ATTR_RO(status), + __ATTR_RO(modalias), __ATTR_NULL }; @@ -51,10 +60,19 @@ static int virtio_dev_match(struct device *_dv, struct device_driver *_dr) return 0; } +static int virtio_uevent(struct device *_dv, struct kobj_uevent_env *env) +{ + struct virtio_device *dev = container_of(_dv,struct virtio_device,dev); + + return add_uevent_var(env, "MODALIAS=virtio:d%08Xv%08X", + dev->id.device, dev->id.vendor); +} + static struct bus_type virtio_bus = { .name = "virtio", .match = virtio_dev_match, .dev_attrs = virtio_dev_attrs, + .uevent = virtio_uevent, }; static void add_status(struct virtio_device *dev, unsigned status) diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 91c15da2680..d802b5afae8 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -525,6 +525,20 @@ static int do_ssb_entry(const char *filename, return 1; } +/* Looks like: virtio:dNvN */ +static int do_virtio_entry(const char *filename, struct virtio_device_id *id, + char *alias) +{ + id->device = TO_NATIVE(id->device); + id->vendor = TO_NATIVE(id->vendor); + + strcpy(alias, "virtio:"); + ADD(alias, "d", 1, id->device); + ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor); + + return 1; +} + /* Ignore any prefix, eg. v850 prepends _ */ static inline int sym_is(const char *symbol, const char *name) { @@ -651,6 +665,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info, do_table(symval, sym->st_size, sizeof(struct ssb_device_id), "ssb", do_ssb_entry, mod); + else if (sym_is(symname, "__mod_virtio_device_table")) + do_table(symval, sym->st_size, + sizeof(struct virtio_device_id), "virtio", + do_virtio_entry, mod); free(zeros); } |