From: Karl Beldan <karl.beldan@xxxxxxxxxxxxxxxx>
These are called to init the sample tables.
This occurs once in minstrel_ht upon its registration (since it uses one
single common sample table for all STAs), and once per sta addition in
minstrel.
Signed-off-by: Karl Beldan <karl.beldan@xxxxxxxxxxxxxxxx>
---
net/mac80211/rc80211_minstrel.c | 3 +--
net/mac80211/rc80211_minstrel_ht.c | 3 +--
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 7fa1b36..a40e4e3 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -422,10 +422,9 @@ init_sample_table(struct minstrel_sta_info *mi)
memset(mi->sample_table, 0xff, SAMPLE_COLUMNS * mi->n_rates);
for (col = 0; col < SAMPLE_COLUMNS; col++) {
+ get_random_bytes(rnd, sizeof(rnd));
for (i = 0; i < mi->n_rates; i++) {
- get_random_bytes(rnd, sizeof(rnd));
new_idx = (i + rnd[i & 7]) % mi->n_rates;
-
while (SAMPLE_TBL(mi, new_idx, col) != 0xff)
new_idx = (new_idx + 1) % mi->n_rates;
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 5d60779..aeec401 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -1052,10 +1052,9 @@ init_sample_table(void)
memset(sample_table, 0xff, sizeof(sample_table));
for (col = 0; col < SAMPLE_COLUMNS; col++) {
+ get_random_bytes(rnd, sizeof(rnd));
for (i = 0; i < MCS_GROUP_RATES; i++) {
- get_random_bytes(rnd, sizeof(rnd));
new_idx = (i + rnd[i]) % MCS_GROUP_RATES;
-
while (sample_table[col][new_idx] != 0xff)
new_idx = (new_idx + 1) % MCS_GROUP_RATES;
--
1.8.2
--
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