diff options
| author |   Ivo van Doorn <ivdoorn@gmail.com> | 2010-12-13 12:36:18 +0100 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2010-12-13 15:23:36 -0500 |
| commit | dba5dc1ae9764902f46d5225c9ff40e4f7b614c7 (patch) | |
| tree | 693be19fa299bad11310e394fb06c0d4effb898b /drivers/net/wireless/rt2x00/rt2x00dev.c | |
| parent | rt2x00: Cleanup RX index counting (diff) | |
| download | linux-dev-dba5dc1ae9764902f46d5225c9ff40e4f7b614c7.tar.xz linux-dev-dba5dc1ae9764902f46d5225c9ff40e4f7b614c7.zip | |
rt2x00: Introduce extra queue entry sanity flag
Add a queue entry flag ENTRY_DATA_STATUS_PENDING,
which can be used to indicate a queue entry has
returned from the hardware and is waiting for
status processing. Using this flag we can add
some extra sanity checks to prevent queue corruption.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00dev.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00dev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 3d4c61fcf06f..fa74acdd271f 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -235,6 +235,7 @@ EXPORT_SYMBOL_GPL(rt2x00lib_dmastart); void rt2x00lib_dmadone(struct queue_entry *entry) { + set_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags); clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); rt2x00queue_index_inc(entry->queue, Q_INDEX_DMA_DONE); } |