summaryrefslogtreecommitdiff
path: root/net/mac80211/rc80211_minstrel_ht_debugfs.c
diff options
context:
space:
mode:
authorFelix Fietkau <nbd@nbd.name>2019-01-17 00:32:12 +0300
committerJohannes Berg <johannes.berg@intel.com>2019-01-19 11:56:56 +0300
commit77f7ffdc335de8541a2a40618781ed0b76cee9f7 (patch)
treedfa578402b5831d3c5de1094295b02b216be334b /net/mac80211/rc80211_minstrel_ht_debugfs.c
parenta8d418d9ac25f85a9caf652a4b2d07ec790474ab (diff)
downloadlinux-77f7ffdc335de8541a2a40618781ed0b76cee9f7.tar.xz
mac80211: minstrel_ht: add flag to indicate missing/inaccurate tx A-MPDU length
Some hardware (e.g. MediaTek MT7603) cannot report A-MPDU length in tx status information. Add support for a flag to indicate that, to allow minstrel_ht to use a fixed value in its internal calculation (which gives better results than just defaulting to 1). Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rc80211_minstrel_ht_debugfs.c')
-rw-r--r--net/mac80211/rc80211_minstrel_ht_debugfs.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/mac80211/rc80211_minstrel_ht_debugfs.c b/net/mac80211/rc80211_minstrel_ht_debugfs.c
index 57820a5f2c16..31641d0b0f5c 100644
--- a/net/mac80211/rc80211_minstrel_ht_debugfs.c
+++ b/net/mac80211/rc80211_minstrel_ht_debugfs.c
@@ -160,9 +160,10 @@ minstrel_ht_stats_open(struct inode *inode, struct file *file)
"lookaround %d\n",
max(0, (int) mi->total_packets - (int) mi->sample_packets),
mi->sample_packets);
- p += sprintf(p, "Average # of aggregated frames per A-MPDU: %d.%d\n",
- MINSTREL_TRUNC(mi->avg_ampdu_len),
- MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
+ if (mi->avg_ampdu_len)
+ p += sprintf(p, "Average # of aggregated frames per A-MPDU: %d.%d\n",
+ MINSTREL_TRUNC(mi->avg_ampdu_len),
+ MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
ms->len = p - ms->buf;
WARN_ON(ms->len + sizeof(*ms) > 32768);