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authorJohannes Berg <johannes.berg@intel.com>2012-03-28 11:04:24 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-04-10 20:54:09 +0200
commita3304b0a17495183a2270d4a25978795226597a4 (patch)
tree1b1f91ab191e77833b84232ba5a61d6a584b3cd6 /net/wireless
parentmac80211: remove antenna_sel_tx TX info field (diff)
downloadlinux-a3304b0a17495183a2270d4a25978795226597a4.tar.xz
linux-a3304b0a17495183a2270d4a25978795226597a4.zip
cfg80211/nl80211: clarify TX queue API
With the plan to change mac80211's queue API to not map ACs to queues 1:1, it seems necessary to clarify some APIs that act on ACs rather than on queues to spell that out explicitly. Do this. Also verify that the AC number given is valid. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e49da2797022..344697df1177 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1104,17 +1104,20 @@ static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
static int parse_txq_params(struct nlattr *tb[],
struct ieee80211_txq_params *txq_params)
{
- if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
+ if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
!tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
!tb[NL80211_TXQ_ATTR_AIFS])
return -EINVAL;
- txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
+ txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
+ if (txq_params->ac >= NL80211_NUM_ACS)
+ return -EINVAL;
+
return 0;
}