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author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2016-01-25 12:03:46 +0300 |
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committer | Johannes Berg <johannes.berg@intel.com> | 2016-02-24 09:12:45 +0100 |
commit | 648b50dd6abf8e6e5b589bb8e6873a4596389dbe (patch) | |
tree | e526a0a913b67e209252863132e75c55019c1557 /net/rfkill/core.c | |
parent | 7837a7778268191dae5f6622f2b92b8b37cb8d7f (diff) | |
download | linux-stable-648b50dd6abf8e6e5b589bb8e6873a4596389dbe.tar.gz linux-stable-648b50dd6abf8e6e5b589bb8e6873a4596389dbe.tar.bz2 linux-stable-648b50dd6abf8e6e5b589bb8e6873a4596389dbe.zip |
net: rfkill: add rfkill_find_type function
Helper for finding the type based on name. Useful if the
type needs to be determined based on device property.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
[modify rfkill_types array and BUILD_BUG_ON to not cause errors]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/rfkill/core.c')
-rw-r--r-- | net/rfkill/core.c | 58 |
1 files changed, 30 insertions, 28 deletions
diff --git a/net/rfkill/core.c b/net/rfkill/core.c index a805831d5d9b..2a23479a49f2 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -572,6 +572,34 @@ void rfkill_set_states(struct rfkill *rfkill, bool sw, bool hw) } EXPORT_SYMBOL(rfkill_set_states); +static const char * const rfkill_types[] = { + NULL, /* RFKILL_TYPE_ALL */ + "wlan", + "bluetooth", + "ultrawideband", + "wimax", + "wwan", + "gps", + "fm", + "nfc", +}; + +enum rfkill_type rfkill_find_type(const char *name) +{ + int i; + + BUILD_BUG_ON(ARRAY_SIZE(rfkill_types) != NUM_RFKILL_TYPES); + + if (!name) + return RFKILL_TYPE_ALL; + + for (i = 1; i < NUM_RFKILL_TYPES; i++) + if (!strcmp(name, rfkill_types[i])) + return i; + return RFKILL_TYPE_ALL; +} +EXPORT_SYMBOL(rfkill_find_type); + static ssize_t name_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -581,38 +609,12 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR_RO(name); -static const char *rfkill_get_type_str(enum rfkill_type type) -{ - BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_NFC + 1); - - switch (type) { - case RFKILL_TYPE_WLAN: - return "wlan"; - case RFKILL_TYPE_BLUETOOTH: - return "bluetooth"; - case RFKILL_TYPE_UWB: - return "ultrawideband"; - case RFKILL_TYPE_WIMAX: - return "wimax"; - case RFKILL_TYPE_WWAN: - return "wwan"; - case RFKILL_TYPE_GPS: - return "gps"; - case RFKILL_TYPE_FM: - return "fm"; - case RFKILL_TYPE_NFC: - return "nfc"; - default: - BUG(); - } -} - static ssize_t type_show(struct device *dev, struct device_attribute *attr, char *buf) { struct rfkill *rfkill = to_rfkill(dev); - return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type)); + return sprintf(buf, "%s\n", rfkill_types[rfkill->type]); } static DEVICE_ATTR_RO(type); @@ -750,7 +752,7 @@ static int rfkill_dev_uevent(struct device *dev, struct kobj_uevent_env *env) if (error) return error; error = add_uevent_var(env, "RFKILL_TYPE=%s", - rfkill_get_type_str(rfkill->type)); + rfkill_types[rfkill->type]); if (error) return error; spin_lock_irqsave(&rfkill->lock, flags); |