]> git.baikalelectronics.ru Git - kernel.git/commit
mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple of 4
authorFelix Fietkau <nbd@nbd.name>
Sat, 10 Feb 2018 12:20:34 +0000 (13:20 +0100)
committerJohannes Berg <johannes.berg@intel.com>
Mon, 19 Feb 2018 12:13:36 +0000 (13:13 +0100)
commit50fc384b8d3e06e905ba46d04dc55be0ddd1bb14
treef8ec4100dcb78aaf2345114e3c39c65737702b1a
parente43cf9ec4be0272462ebdce99a4a16b112b71705
mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple of 4

This ensures that mac80211 allocated management frames are properly
aligned, which makes copying them more efficient.
For instance, mt76 uses iowrite32_copy to copy beacon frames to beacon
template memory on the chip.
Misaligned 32-bit accesses cause CPU exceptions on MIPS and should be
avoided.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
include/net/mac80211.h