package/kernel/mac80211/patches/331-v4.18-0009-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 [rmilecki: add sdiod variable and use func[1]]
  14 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  15 ---
  16  drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 4 +++-
  17  1 file changed, 3 insertions(+), 1 deletion(-)
  18
  19 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
  20 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
  21 @@ -1078,6 +1078,7 @@ static void brcmf_sdio_get_console_addr(
  22
  23  static u32 brcmf_sdio_hostmail(struct brcmf_sdio *bus)
  24  {
  25 +       struct brcmf_sdio_dev *sdiod = bus->sdiodev;
  26         u32 intstatus = 0;
  27         u32 hmb_data;
  28         u8 fcbits;
  29 @@ -1095,8 +1096,10 @@ static u32 brcmf_sdio_hostmail(struct br
  30         bus->sdcnt.f1regdata += 2;
  31
  32         /* dongle indicates the firmware has halted/crashed */
  33 -       if (hmb_data & HMB_DATA_FWHALT)
  34 +       if (hmb_data & HMB_DATA_FWHALT) {
  35                 brcmf_err("mailbox indicates firmware halted\n");
  36 +               brcmf_dev_coredump(&sdiod->func[1]->dev);
  37 +       }
  38
  39         /* Dongle recomposed rx frames, accept them again */
  40         if (hmb_data & HMB_DATA_NAKHANDLED) {