diff options
| author | Felix Fietkau <nbd@nbd.name> | 2018-02-10 15:20:34 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2018-02-19 15:13:36 +0300 |
| commit | 651b9920d7a694ffb1f885aef2bbb068a25d9d66 (patch) | |
| tree | f8ec4100dcb78aaf2345114e3c39c65737702b1a /include/net/mac80211.h | |
| parent | ce162bfbc0b601841886965baba14877127c7c7c (diff) | |
| download | linux-651b9920d7a694ffb1f885aef2bbb068a25d9d66.tar.xz | |
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>
Diffstat (limited to 'include/net/mac80211.h')
| -rw-r--r-- | include/net/mac80211.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index eec143cca1c0..c9077a832977 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -4141,7 +4141,7 @@ void ieee80211_sta_uapsd_trigger(struct ieee80211_sta *sta, u8 tid); * The TX headroom reserved by mac80211 for its own tx_status functions. * This is enough for the radiotap header. */ -#define IEEE80211_TX_STATUS_HEADROOM 14 +#define IEEE80211_TX_STATUS_HEADROOM ALIGN(14, 4) /** * ieee80211_sta_set_buffered - inform mac80211 about driver-buffered frames |