mac80211: send (QoS) Null if no buffered frames

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For PS-poll, there's a possible race between
us expiring a frame and the station polling
for it -- send it a null frame in that case.

For uAPSD, the standard says that we have to
send a frame in each SP, so send null if we
don't have any other frames.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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This commit is contained in:

Johannes Berg 2011-09-29 16:04:34 +02:00 • committed by John W. Linville

parent 47086fc51a

commit ce662b44ce

3 changed files with 92 additions and 12 deletions

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1

net/mac80211/ieee80211_i.h

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104

net/mac80211/sta_info.c

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3

net/mac80211/tx.c

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