From 4c121fd690d9c465e4cb09b7859adfdd6a0aee1d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 8 Sep 2017 11:54:46 +0200
Subject: mac80211: use offsetofend()

This was created using the following spatch:
    @find@
    type S;
    expression M, M2;
    position p;
    @@
    offsetof(S, M) + sizeof(M2)@p

    @script:python@
    m << find.M;
    m2 << find.M2;
    @@
    if not m2.endswith('-> ' + m):
            cocci.include_match(False)

    @change@
    type find.S;
    expression find.M, find.M2;
    position find.p;
    @@
    -offsetof(S, M) + sizeof(M2)@p
    +offsetofend(S, M)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/mesh.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'net/mac80211/mesh.c')

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index a550c707cd8a..7a76c4a6df30 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -675,8 +675,7 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
 	enum nl80211_band band;
 	u8 *pos;
 	struct ieee80211_sub_if_data *sdata;
-	int hdr_len = offsetof(struct ieee80211_mgmt, u.beacon) +
-		      sizeof(mgmt->u.beacon);
+	int hdr_len = offsetofend(struct ieee80211_mgmt, u.beacon);
 
 	sdata = container_of(ifmsh, struct ieee80211_sub_if_data, u.mesh);
 	rcu_read_lock();
-- 
cgit