package/kernel/mac80211/patches/335-v4.18-0006-brcmfmac-trigger-memory-dump-on-SDIO-firmware-halt-m.patch

   1 From b8248236e92790ac635caeb4156e46ea2417e037 Mon Sep 17 00:00:00 2001
   2 From: Franky Lin <franky.lin@broadcom.com>
   3 Date: Wed, 16 May 2018 14:12:03 +0200
   4 Subject: [PATCH] brcmfmac: trigger memory dump on SDIO firmware halt message
   5
   6 Attempt to dump dongle memory for debug upon receiving firmware halt
   7 message through dongle to host mail box interrupt.
   8
   9 Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  10 Signed-off-by: Franky Lin <franky.lin@broadcom.com>
  11 Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  12 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  13 ---
  14  drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 4 +++-
  15  1 file changed, 3 insertions(+), 1 deletion(-)
  16
  17 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
  18 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
  19 @@ -1072,8 +1072,10 @@ static u32 brcmf_sdio_hostmail(struct br
  20         bus->sdcnt.f1regdata += 2;
  21
  22         /* dongle indicates the firmware has halted/crashed */
  23 -       if (hmb_data & HMB_DATA_FWHALT)
  24 +       if (hmb_data & HMB_DATA_FWHALT) {
  25                 brcmf_err("mailbox indicates firmware halted\n");
  26 +               brcmf_dev_coredump(&sdiod->func1->dev);
  27 +       }
  28
  29         /* Dongle recomposed rx frames, accept them again */
  30         if (hmb_data & HMB_DATA_NAKHANDLED) {