From: Arnd Bergmann Date: Fri, 2 Feb 2018 15:31:23 +0000 (+0100) Subject: cfg80211: fix cfg80211_beacon_dup X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=bee92d06157fc39d5d7836a061c7d41289a55797;p=openwrt%2Fstaging%2Fblogic.git cfg80211: fix cfg80211_beacon_dup gcc-8 warns about some obviously incorrect code: net/mac80211/cfg.c: In function 'cfg80211_beacon_dup': net/mac80211/cfg.c:2896:3: error: 'memcpy' source argument is the same as destination [-Werror=restrict] From the context, I conclude that we want to copy from beacon into new_beacon, as we do in the rest of the function. Cc: stable@vger.kernel.org Fixes: 73da7d5bab79 ("mac80211: add channel switch command and beacon callbacks") Signed-off-by: Arnd Bergmann Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index fb15d3b97cb2..84f757c5d91a 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2863,7 +2863,7 @@ cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) } if (beacon->probe_resp_len) { new_beacon->probe_resp_len = beacon->probe_resp_len; - beacon->probe_resp = pos; + new_beacon->probe_resp = pos; memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); pos += beacon->probe_resp_len; }