package/kernel/mac80211/patches/351-0009-brcmfmac-print-errors-if-creating-interface-fails.patch

   1 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
   2 Date: Fri, 27 May 2016 10:54:28 +0200
   3 Subject: [PATCH] brcmfmac: print errors if creating interface fails
   4
   5 This is helpful for debugging. Without this all I was getting from "iw"
   6 command on failed creating of P2P interface was:
   7 > command failed: Too many open files in system (-23)
   8
   9 Signed-off-by: Rafal Milecki <zajec5@gmail.com>
  10 [arend@broadcom.com: reduce error prints upon iface creation]
  11 Signed-off-by: Arend van Spriel <arend@broadcom.com>
  12 Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
  13 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  14 ---
  15
  16 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  17 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  18 @@ -670,20 +670,24 @@ static struct wireless_dev *brcmf_cfg802
  19                 return ERR_PTR(-EOPNOTSUPP);
  20         case NL80211_IFTYPE_AP:
  21                 wdev = brcmf_ap_add_vif(wiphy, name, flags, params);
  22 -               if (!IS_ERR(wdev))
  23 -                       brcmf_cfg80211_update_proto_addr_mode(wdev);
  24 -               return wdev;
  25 +               break;
  26         case NL80211_IFTYPE_P2P_CLIENT:
  27         case NL80211_IFTYPE_P2P_GO:
  28         case NL80211_IFTYPE_P2P_DEVICE:
  29                 wdev = brcmf_p2p_add_vif(wiphy, name, name_assign_type, type, flags, params);
  30 -               if (!IS_ERR(wdev))
  31 -                       brcmf_cfg80211_update_proto_addr_mode(wdev);
  32 -               return wdev;
  33 +               break;
  34         case NL80211_IFTYPE_UNSPECIFIED:
  35         default:
  36                 return ERR_PTR(-EINVAL);
  37         }
  38 +
  39 +       if (IS_ERR(wdev))
  40 +               brcmf_err("add iface %s type %d failed: err=%d\n",
  41 +                         name, type, (int)PTR_ERR(wdev));
  42 +       else
  43 +               brcmf_cfg80211_update_proto_addr_mode(wdev);
  44 +
  45 +       return wdev;
  46  }
  47
  48  static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
  49 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
  50 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
  51 @@ -2030,8 +2030,6 @@ static int brcmf_p2p_request_p2p_if(stru
  52
  53         err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request,
  54                                        sizeof(if_request));
  55 -       if (err)
  56 -               return err;
  57
  58         return err;
  59  }