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authorChristian Lamparter <chunkeey@googlemail.com>2010-09-21 21:36:18 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-09-24 15:54:30 -0400
commiteb7d3066cf864342e8ae6a5c1126a1602c4d06c0 (patch)
tree85c7a4f11d06d1c90a3bcba05adc7df1eb3f2823 /include/net/mac80211.h
parented627be38a1a07c6986a9f17c299f6afc86ac6b7 (diff)
mac80211: clear txflags for ps-filtered frames
This patch fixes stale mac80211_tx_control_flags for filtered / retried frames. Because ieee80211_handle_filtered_frame feeds skbs back into the tx path, they have to be stripped of some tx flags so they won't confuse the stack, driver or device. Cc: <stable@kernel.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net/mac80211.h')
-rw-r--r--include/net/mac80211.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 12a49f0ba32c..5d1187d7c5e5 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -321,6 +321,9 @@ struct ieee80211_bss_conf {
* @IEEE80211_TX_CTL_LDPC: tells the driver to use LDPC for this frame
* @IEEE80211_TX_CTL_STBC: Enables Space-Time Block Coding (STBC) for this
* frame and selects the maximum number of streams that it can use.
+ *
+ * Note: If you have to add new flags to the enumeration, then don't
+ * forget to update %IEEE80211_TX_TEMPORARY_FLAGS when necessary.
*/
enum mac80211_tx_control_flags {
IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0),
@@ -350,6 +353,19 @@ enum mac80211_tx_control_flags {
#define IEEE80211_TX_CTL_STBC_SHIFT 23
+/*
+ * This definition is used as a mask to clear all temporary flags, which are
+ * set by the tx handlers for each transmission attempt by the mac80211 stack.
+ */
+#define IEEE80211_TX_TEMPORARY_FLAGS (IEEE80211_TX_CTL_NO_ACK | \
+ IEEE80211_TX_CTL_CLEAR_PS_FILT | IEEE80211_TX_CTL_FIRST_FRAGMENT | \
+ IEEE80211_TX_CTL_SEND_AFTER_DTIM | IEEE80211_TX_CTL_AMPDU | \
+ IEEE80211_TX_STAT_TX_FILTERED | IEEE80211_TX_STAT_ACK | \
+ IEEE80211_TX_STAT_AMPDU | IEEE80211_TX_STAT_AMPDU_NO_BACK | \
+ IEEE80211_TX_CTL_RATE_CTRL_PROBE | IEEE80211_TX_CTL_PSPOLL_RESPONSE | \
+ IEEE80211_TX_CTL_MORE_FRAMES | IEEE80211_TX_CTL_LDPC | \
+ IEEE80211_TX_CTL_STBC)
+
/**
* enum mac80211_rate_control_flags - per-rate flags set by the
* Rate Control algorithm.