rt2x00: Introduce RXDONE_SIGNAL_MASK mask

Improve error message reporting when a frame was received
with unknown rate. Instead of using the boolean check if
the frame is supposed to be a PLCP value or not, we should
add a new mask (RXDONE_SIGNAL_MASK) which returns the type
identification for a signal value (i.e. PLCP). At the moment
we only have 2 different types, but more will arrive when
support for 11n is added.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2x00dev.c

@@ -392,8 +392,8 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
 
 	if (idx < 0) {
 		WARNING(rt2x00dev, "Frame received with unrecognized signal,"
-			"signal=0x%.2x, plcp=%d.\n", rxdesc.signal,
-			!!(rxdesc.dev_flags & RXDONE_SIGNAL_PLCP));
+			"signal=0x%.2x, type=%d.\n", rxdesc.signal,
+			(rxdesc.dev_flags & RXDONE_SIGNAL_MASK));
 		idx = 0;
 	}
 

drivers/net/wireless/rt2x00/rt2x00queue.h

@@ -157,6 +157,14 @@ enum rxdone_entry_desc_flags {
 	RXDONE_CRYPTO_ICV = 1 << 4,
 };
 
+/**
+ * RXDONE_SIGNAL_MASK - Define to mask off all &rxdone_entry_desc_flags flags
+ * except for the RXDONE_SIGNAL_* flags. This is useful to convert the dev_flags
+ * from &rxdone_entry_desc to a signal value type.
+ */
+#define RXDONE_SIGNAL_MASK \
+       ( RXDONE_SIGNAL_PLCP | RXDONE_SIGNAL_BITRATE )
+
 /**
  * struct rxdone_entry_desc: RX Entry descriptor
  *