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authorJohannes Berg <johannes@sipsolutions.net>2008-11-12 16:54:22 -0500
committerJohn W. Linville <linville@tuxdriver.com>2008-11-12 16:54:22 -0500
commitf7cd168645dda3e9067f24fabbfa787f9a237488 (patch)
tree3656f2526784b6f74eb9a3f2bc0355fe4905d043
parentf3c769185a28b7947d97b3552a977102c1fac3f2 (diff)
downloadblackbird-op-linux-f7cd168645dda3e9067f24fabbfa787f9a237488.tar.gz
blackbird-op-linux-f7cd168645dda3e9067f24fabbfa787f9a237488.zip
hostap: pad the skb->cb usage in lieu of a proper fix
Like mac80211 did, this driver makes 'clever' use of skb->cb to pass information along with an skb as it is requeued from the virtual device to the physical wireless device. Unfortunately, that trick no longer works... Unlike mac80211, code complexity and driver apathy makes this hack the best option we have in the short run. Hopefully someone will eventually be motivated to code a proper fix before all the effected hardware dies. (Above text by me. Johannes officially disavows all knowledge of this hack. -- JWL) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/hostap/hostap_wlan.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h
index ffdf4876121b..a68f97c39359 100644
--- a/drivers/net/wireless/hostap/hostap_wlan.h
+++ b/drivers/net/wireless/hostap/hostap_wlan.h
@@ -918,9 +918,12 @@ struct hostap_interface {
/*
* TX meta data - stored in skb->cb buffer, so this must not be increased over
- * the 40-byte limit
+ * the 48-byte limit.
+ * THE PADDING THIS STARTS WITH IS A HORRIBLE HACK THAT SHOULD NOT LIVE
+ * TO SEE THE DAY.
*/
struct hostap_skb_tx_data {
+ unsigned int __padding_for_default_qdiscs;
u32 magic; /* HOSTAP_SKB_TX_DATA_MAGIC */
u8 rate; /* transmit rate */
#define HOSTAP_TX_FLAGS_WDS BIT(0)
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