Commit b6603036 authored by Stanislaw Gruszka's avatar Stanislaw Gruszka Committed by John W. Linville

iwlegacy: dump stack when fail to gain access to the device

Print dump stack when the device is not responding. This should give
some more clue about the reason of failure. Also change the message we
print, since "MAC in deep sleep" is kinda confusing.

On the way add unlikely(), as fail to gain NIC access is hmm ...
unlikely.
Signed-off-by: default avatarStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 3fccdcf5
......@@ -111,9 +111,10 @@ _il_grab_nic_access(struct il_priv *il)
_il_poll_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
(CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000);
if (ret < 0) {
if (unlikely(ret < 0)) {
val = _il_rd(il, CSR_GP_CNTRL);
IL_ERR("MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val);
WARN_ONCE(1, "Timeout waiting for ucode processor access "
"(CSR_GP_CNTRL 0x%08x)\n", val);
_il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_FORCE_NMI);
return -EIO;
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment