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rt2x00: Introduce extra queue entry sanity flag

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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>
This commit is contained in:
Ivo van Doorn
2010-12-13 12:36:18 +01:00
committed by John W. Linville
parent 64e7d72384
commit dba5dc1ae9
3 changed files with 14 additions and 5 deletions
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6
drivers/net/wireless/rt2x00/rt2x00queue.h
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@@ -340,12 +340,16 @@ struct txentry_desc {
* @ENTRY_DATA_IO_FAILED: Hardware indicated that an IO error occured
* while transfering the data to the hardware. No TX status report will
* be expected from the hardware.
* @ENTRY_DATA_STATUS_PENDING: The entry has been send to the device and
* returned. It is now waiting for the status reporting before the
* entry can be reused again.
*/
enum queue_entry_flags {
ENTRY_BCN_ASSIGNED,
ENTRY_OWNER_DEVICE_DATA,
ENTRY_DATA_PENDING,
ENTRY_DATA_IO_FAILED
ENTRY_DATA_IO_FAILED,
ENTRY_DATA_STATUS_PENDING,
};
/**