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| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2010-10-26 15:27:25 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-15 13:24:47 -0500 |
| commit | 6a6733f256f18cbcf4875e13f59eedb593b755a8 (patch) | |
| tree | ca1aa9ea86d946a4922d2a71d33837ec22454be1 /net/mac80211/debugfs.c | |
| parent | 4bdd1e978ede034c1211957eb17eaf50de00d234 (diff) | |
| download | lwn-6a6733f256f18cbcf4875e13f59eedb593b755a8.tar.gz lwn-6a6733f256f18cbcf4875e13f59eedb593b755a8.zip | |
ath9k: content DMA start / stop through the PCU lock
This helps align resets / RX enable & disable / TX stop / start.
Locking around the PCU is important to ensure the hardware doesn't
get stale data when working with DMA'able data.
This is part of a series of patches which fix stopping
TX DMA completley when requested on the driver.
For more details about this issue refer to this thread:
http://marc.info/?l=linux-wireless&m=128629803703756&w=2
Tested-by: Ben Greear <greearb@candelatech.com>
Cc: Kyungwan Nam <kyungwan.nam@atheros.com>
Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/debugfs.c')
0 files changed, 0 insertions, 0 deletions