From 2a0cfeb826df6751933fd95a797ac18371992c3b Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Sat, 2 Oct 2010 11:26:17 +0200 Subject: rt2x00: Don't overwrite beacon buffers in pairwise key setup rt2800 devices use parts of the pariwise key table to store the beacon frames for beacon 6 and 7. To not overwrite the beacon frame buffers limit the number of entries we store in the pairwise key table to 222. Also add some descriptive comments about this shared memory usage. Signed-off-by: Helmut Schaa Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/net/wireless/rt2x00/rt2800lib.c') diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index c7076deaecea..daa32ae42866 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -1031,8 +1031,12 @@ int rt2800_config_pairwise_key(struct rt2x00_dev *rt2x00dev, * 1 pairwise key is possible per AID, this means that the AID * equals our hw_key_idx. Make sure the WCID starts _after_ the * last possible shared key entry. + * + * Since parts of the pairwise key table might be shared with + * the beacon frame buffers 6 & 7 we should only write into the + * first 222 entries. */ - if (crypto->aid > (256 - 32)) + if (crypto->aid > (222 - 32)) return -ENOSPC; key->hw_key_idx = 32 + crypto->aid; -- cgit v1.2.3