Hello, Patch "nl80211: Add support for EDMG channels" broke brcmfmac driver on one of my devices, the newly introduced cfg80211_chandef_is_edmg() erroneously returns "true" because chandef->edmg.bw_config != NULL. Apparently this happens because "chandef" is allocated on stack in nl80211.c (and other places), the "edmg" field isn't zeroed while it should be. Please fix, thanks in advance. WARNING: CPU: 0 PID: 409 at net/wireless/nl80211.c:3118 nl80211_send_chandef+0xd3/0xd8 Modules linked in: CPU: 0 PID: 409 Comm: NetworkManager Tainted: G W 5.3.0-next-20190920-00177-g89b36954c24f #2381 Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) (show_stack+0x11/0x14) (dump_stack+0x7f/0x8c) (__warn+0xc1/0xc4) (warn_slowpath_fmt+0x45/0x78) (nl80211_send_chandef+0xd3/0xd8) (nl80211_send_iface+0x4db/0x6a0) (nl80211_get_interface+0x39/0x68) (genl_rcv_msg+0x14d/0x33c) (netlink_rcv_skb+0x85/0xb8) (genl_rcv+0x21/0x30) (netlink_unicast+0xf3/0x144) (netlink_sendmsg+0x12b/0x27c) (sock_sendmsg+0x11/0x1c) (___sys_sendmsg+0x1bb/0x1d0) (__sys_sendmsg+0x39/0x58) (ret_fast_syscall+0x1/0x28) Exception stack(0xe1621fa8 to 0xe1621ff0) 1fa0: 00000000 bea1b830 00000009 bea1b830 00000000 00000000 1fc0: 00000000 bea1b830 00000009 00000128 00644084 b6fd6930 00683d30 00645330 1fe0: 00000128 bea1b808 b6a1b3a5 b6a1c6b6
