From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Subject: [PATCH V4] brcmfmac: print errors if creating interface fails Date: Fri, 27 May 2016 01:03:07 +0200 Message-ID: <1464303792-3041-1-git-send-email-zajec5@gmail.com> References: <1464216299-25232-1-git-send-email-zajec5@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= , Brett Rudley , Arend van Spriel , "Franky (Zhenhui) Lin" , Hante Meuleman , Pieter-Paul Giesberts , linux-wireless@vger.kernel.org (open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER), brcm80211-dev-list@broadcom.com (open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER), netdev@vger.kernel.org (open list:NETWORKING DRIVERS), linux-kernel@vger.kernel.org (open list) To: Kalle Valo Return-path: In-Reply-To: <1464216299-25232-1-git-send-email-zajec5@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org This is helpful for debugging. Without this all I was getting from "iw" command on failed creating of P2P interface was: > command failed: Too many open files in system (-23) Signed-off-by: Rafa=C5=82 Mi=C5=82ecki --- V2: s/in/if/ in commit message V3: Add one more error message as suggested by Arend V4: Also update brcmf_cfg80211_add_iface & print error for AP --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 8 ++++++= -- drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 3 ++- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.= c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 3d09d23..e7975a3 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -669,14 +669,18 @@ static struct wireless_dev *brcmf_cfg80211_add_if= ace(struct wiphy *wiphy, return ERR_PTR(-EOPNOTSUPP); case NL80211_IFTYPE_AP: wdev =3D brcmf_ap_add_vif(wiphy, name, flags, params); - if (!IS_ERR(wdev)) + if (IS_ERR(wdev)) + brcmf_err("Failed to create AP interface %s: %d\n", name, PTR_ERR(w= dev)); + else brcmf_cfg80211_update_proto_addr_mode(wdev); return wdev; case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_P2P_GO: case NL80211_IFTYPE_P2P_DEVICE: wdev =3D brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, flag= s, params); - if (!IS_ERR(wdev)) + if (IS_ERR(wdev)) + brcmf_err("Failed to create P2P interface %s: %d\n", name, PTR_ERR(= wdev)); + else brcmf_cfg80211_update_proto_addr_mode(wdev); return wdev; case NL80211_IFTYPE_UNSPECIFIED: diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/d= rivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c index 1652a48..bc26aec 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c @@ -2031,7 +2031,7 @@ static int brcmf_p2p_request_p2p_if(struct brcmf_= p2p_info *p2p, err =3D brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request, sizeof(if_request)); if (err) - return err; + brcmf_err("p2p_ifadd failed %d\n", err); =20 return err; } @@ -2185,6 +2185,7 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wip= hy *wiphy, const char *name, err =3D brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, cfg->p2p.int_addr, iftype); if (err) { + brcmf_err("Failed to request P2P virtual interface %s\n", name); brcmf_cfg80211_arm_vif_event(cfg, NULL); goto fail; } --=20 1.8.4.5