rt2x00: Optimize rt2x00debug_dump_frame when frame dumping is not active
When rt2x00 is compiled with debugging but frame dumping is currently not active we can avoid the call to do_gettimeofday. Furthermore, frame dumping is not the default case, mark it as unlikely. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -162,11 +162,11 @@ void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
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struct timeval timestamp;
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u32 data_len;
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do_gettimeofday(×tamp);
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if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags))
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if (likely(!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)))
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return;
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do_gettimeofday(×tamp);
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if (skb_queue_len(&intf->frame_dump_skbqueue) > 20) {
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DEBUG(rt2x00dev, "txrx dump queue length exceeded.\n");
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return;
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