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authorJohannes Berg <johannes@sipsolutions.net>2009-06-02 13:01:40 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-06-03 14:06:14 -0400
commit6081162e2ed78dfcf149b076b047078ab1445cc2 (patch)
treeaef1cf51ee0a8f77f562defe1fe8ec75812474b7 /net/rfkill
parent7643a2c3fcc13cd6fbd731f214463547383418ae (diff)
rfkill: add function to query state
Sometimes it is necessary to know how the state is, and it is easier to query rfkill than keep track of it somewhere else, so add a function for that. This could later be expanded to return hard/soft block, but so far that isn't necessary. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/rfkill')
-rw-r--r--net/rfkill/core.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
index 2230aa6b14f3..91e9168b5447 100644
--- a/net/rfkill/core.c
+++ b/net/rfkill/core.c
@@ -773,6 +773,19 @@ static struct class rfkill_class = {
.resume = rfkill_resume,
};
+bool rfkill_blocked(struct rfkill *rfkill)
+{
+ unsigned long flags;
+ u32 state;
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ state = rfkill->state;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ return !!(state & RFKILL_BLOCK_ANY);
+}
+EXPORT_SYMBOL(rfkill_blocked);
+
struct rfkill * __must_check rfkill_alloc(const char *name,
struct device *parent,

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