zd1211rw: Replace ZD_CS_MULTICAST with ZD_CS_NO_ACK

According to my tests, all that ZD_CS_MULTICAST does is to disable retrying/waiting for an ACK. Reflect this by renaming the bit to ZD_CS_NO_ACK and setting it based on IEEE80211_TX_CTL_NO_ACK, instead of is_multicast_ether_addr.

---
v2: No word-wrap.

drivers/net/wireless/zd1211rw/zd_mac.c |    6 +++---
drivers/net/wireless/zd1211rw/zd_mac.h |    2 +-
2 files changed, 4 insertions(+), 4 deletions(-)

index 85c27ac..d1ec99f 100644
@@ -430,9 +430,9 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs,

	if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
		cs->control |= ZD_CS_NEED_RANDOM_BACKOFF;

- /* Multicast */
- if (is_multicast_ether_addr(header->addr1))
- cs->control |= ZD_CS_MULTICAST;
+ /* No ACK expected (multicast, etc.) */
+ if (info->flags & IEEE80211_TX_CTL_NO_ACK)
+ cs->control |= ZD_CS_NO_ACK;

	/* PS-POLL */
	if (ieee80211_is_pspoll(header->frame_control))

index 4c05d3e..7c27591 100644
@@ -87,7 +87,7 @@ struct zd_ctrlset {
 

/* zd_ctrlset control field */
#define ZD_CS_NEED_RANDOM_BACKOFF 0x01
-#define ZD_CS_MULTICAST 0x02
+#define ZD_CS_NO_ACK 0x02

#define ZD_CS_FRAME_TYPE_MASK 0x0c
#define ZD_CS_DATA_FRAME 0x00

1.5.6.3