package/kernel/mac80211/patches/323-0005-brcmfmac-Handle-status-BRCMF_E_STATUS_ABORT-in-cfg80.patch

   1 From b9472a2e3e452c414634b3ccb1ef6c4098878686 Mon Sep 17 00:00:00 2001
   2 From: Hans de Goede <hdegoede@redhat.com>
   3 Date: Wed, 8 Mar 2017 14:50:17 +0100
   4 Subject: [PATCH] brcmfmac: Handle status == BRCMF_E_STATUS_ABORT in
   5  cfg80211_escan_handler
   6
   7 If a scan gets aborted BRCMF_SCAN_STATUS_BUSY gets cleared in
   8 cfg->scan_status and when we receive an abort event from the firmware
   9 the BRCMF_SCAN_STATUS_BUSY check in the cfg80211_escan_handler will
  10 trigger resulting in multiple errors getting logged.
  11
  12 Check for a status of BRCMF_E_STATUS_ABORT and in this case simply
  13 cleanly exit the cfg80211_escan_handler. This also avoids a
  14 BRCMF_E_STATUS_ABORT event arriving after a new scan has been started
  15 causing the new scan to complete prematurely without any data.
  16
  17 Signed-off-by: Hans de Goede <hdegoede@redhat.com>
  18 Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  19 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  20 ---
  21  drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 3 +++
  22  1 file changed, 3 insertions(+)
  23
  24 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  25 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  26 @@ -3097,6 +3097,9 @@ brcmf_cfg80211_escan_handler(struct brcm
  27
  28         status = e->status;
  29
  30 +       if (status == BRCMF_E_STATUS_ABORT)
  31 +               goto exit;
  32 +
  33         if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
  34                 brcmf_err("scan not ready, bsscfgidx=%d\n", ifp->bsscfgidx);
  35                 return -EPERM;