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authorAleksandr Nogikh <nogikh@google.com>2020-10-29 17:36:20 +0000
committerJakub Kicinski <kuba@kernel.org>2020-11-02 18:01:45 -0800
commit261e411bb283d348a6a977cccb5db393594e7695 (patch)
treef89aa18a2e0028b93f8fe790997df75e15938236 /net/mac80211/iface.c
parent6370cc3bbd8a0f9bf975b013781243ab147876c6 (diff)
downloadlinux-261e411bb283d348a6a977cccb5db393594e7695.tar.gz
mac80211: add KCOV remote annotations to incoming frame processing
Add KCOV remote annotations to ieee80211_iface_work() and
ieee80211_rx_list(). This will enable coverage-guided fuzzing of
mac80211 code that processes incoming 802.11 frames.

Signed-off-by: Aleksandr Nogikh <nogikh@google.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mac80211/iface.c')
-rw-r--r--net/mac80211/iface.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 1be775979132..56a1bcea2c1c 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1356,6 +1356,7 @@ static void ieee80211_iface_work(struct work_struct *work)
 	while ((skb = skb_dequeue(&sdata->skb_queue))) {
 		struct ieee80211_mgmt *mgmt = (void *)skb->data;
 
+		kcov_remote_start_common(skb_get_kcov_handle(skb));
 		if (ieee80211_is_action(mgmt->frame_control) &&
 		    mgmt->u.action.category == WLAN_CATEGORY_BACK) {
 			int len = skb->len;
@@ -1465,6 +1466,7 @@ static void ieee80211_iface_work(struct work_struct *work)
 		}
 
 		kfree_skb(skb);
+		kcov_remote_stop();
 	}
 
 	/* then other type-dependent work */