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authorChristian Lamparter <chunkeey@googlemail.com>2010-09-21 21:36:18 +0200
committerAndi Kleen <ak@linux.intel.com>2010-12-14 23:40:01 +0100
commitafa9194b3aee8846357236026905fb221c1d4564 (patch)
tree8e4c4923ace0f0c9829eacba2e7440fe67b2dd56 /include
parent0fe79ffa47b60778e71fc8b2dcfc30eb9681db30 (diff)
mac80211: clear txflags for ps-filtered frames
commit eb7d3066cf864342e8ae6a5c1126a1602c4d06c0 upstream. 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. Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'include')
-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 de22cbfef23..323eca1110a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -287,6 +287,9 @@ 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),
@@ -315,6 +318,19 @@ 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.