ath5k: correct packet length in tx descriptors
Packet length calculation (which includes frame check sequence)
should take into account whether we add a pad field or not.
Extract the calculation into a helper and use it in both places.
Changes to desc.c
Changes-licensed-under: ISC
Changes to ath5k.h, base.c
Changes-licensed-under: 3-Clause-BSD
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath5k/desc.c b/drivers/net/wireless/ath5k/desc.c
index 5e362a7..b40a928 100644
--- a/drivers/net/wireless/ath5k/desc.c
+++ b/drivers/net/wireless/ath5k/desc.c
@@ -71,7 +71,7 @@
/* Verify and set frame length */
/* remove padding we might have added before */
- frame_len = pkt_len - (hdr_len & 3) + FCS_LEN;
+ frame_len = pkt_len - ath5k_pad_size(hdr_len) + FCS_LEN;
if (frame_len & ~AR5K_2W_TX_DESC_CTL0_FRAME_LEN)
return -EINVAL;
@@ -202,7 +202,7 @@
/* Verify and set frame length */
/* remove padding we might have added before */
- frame_len = pkt_len - (hdr_len & 3) + FCS_LEN;
+ frame_len = pkt_len - ath5k_pad_size(hdr_len) + FCS_LEN;
if (frame_len & ~AR5K_4W_TX_DESC_CTL0_FRAME_LEN)
return -EINVAL;