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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-03-18 21:38:20 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-03-18 21:38:20 +0000
commitc592c761a36286ab83451daa37a21c8558ea99c0 (patch)
tree8abf57708fabf2a915320e9515b1ae2730ebf499 /drivers/net/wireless/zd1211rw/zd_mac.c
parent63236f4038f7e14762114606d95769c32cf6cac1 (diff)
parent33499df88b711725ee473ab5478e17efd21de4b0 (diff)
Merge remote-tracking branch 'regulator/topic/stub' into regulator-next
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_mac.c')
-rw-r--r--drivers/net/wireless/zd1211rw/zd_mac.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 0a70149df3fc..98a574a4a465 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -866,6 +866,14 @@ static int fill_ctrlset(struct zd_mac *mac,
ZD_ASSERT(frag_len <= 0xffff);
+ /*
+ * Firmware computes the duration itself (for all frames except PSPoll)
+ * and needs the field set to 0 at input, otherwise firmware messes up
+ * duration_id and sets bits 14 and 15 on.
+ */
+ if (!ieee80211_is_pspoll(hdr->frame_control))
+ hdr->duration_id = 0;
+
txrate = ieee80211_get_tx_rate(mac->hw, info);
cs->modulation = txrate->hw_value;