Author: adrian
Date: Sun Oct 23 08:21:35 2016
New Revision: 307819
URL: https://svnweb.freebsd.org/changeset/base/307819
Log:
[net80211] Add a variant on ieee80211_get_rx_params() that returns a pointer.
Be careful when calling this, as the underlying mbuf may change
afterwards - common in the RX path.
Modified:
head/sys/net80211/ieee80211_freebsd.c
head/sys/net80211/ieee80211_freebsd.h
Modified: head/sys/net80211/ieee80211_freebsd.c
==============================================================================
--- head/sys/net80211/ieee80211_freebsd.c Sun Oct 23 08:19:43 2016
(r307818)
+++ head/sys/net80211/ieee80211_freebsd.c Sun Oct 23 08:21:35 2016
(r307819)
@@ -529,6 +529,21 @@ ieee80211_get_rx_params(struct mbuf *m,
return (0);
}
+const struct ieee80211_rx_stats *
+ieee80211_get_rx_params_ptr(struct mbuf *m)
+{
+ struct m_tag *mtag;
+ struct ieee80211_rx_params *rx;
+
+ mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_RECV_PARAMS,
+ NULL);
+ if (mtag == NULL)
+ return (NULL);
+ rx = (struct ieee80211_rx_params *)(mtag + 1);
+ return (&rx->params);
+}
+
+
/*
* Add TOA parameters to the given mbuf.
*/
Modified: head/sys/net80211/ieee80211_freebsd.h
==============================================================================
--- head/sys/net80211/ieee80211_freebsd.h Sun Oct 23 08:19:43 2016
(r307818)
+++ head/sys/net80211/ieee80211_freebsd.h Sun Oct 23 08:21:35 2016
(r307819)
@@ -713,6 +713,7 @@ int ieee80211_add_rx_params(struct mbuf
const struct ieee80211_rx_stats *rxs);
int ieee80211_get_rx_params(struct mbuf *m,
struct ieee80211_rx_stats *rxs);
+const struct ieee80211_rx_stats * ieee80211_get_rx_params_ptr(struct mbuf *m);
struct ieee80211_toa_params {
int request_id;
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