From: Steven Luo <steven@xxxxxxxxxxxxx>
ath9k_hw_getisr() doesn't appear to set anything in the status mask for
PCI FATAL or PERR interrupts (AR_INTR_SYNC_HOST1_FATAL/PERR), which
the open-source HAL seems to do. This means that the card isn't reset
after these interrupts.
This patch seems to fix a problem where the wireless drops out with an
"ath9k: received PCI FATAL interrupt" in dmesg after some time; the
hardware is an AR5416 in an ASUS WL-500W running 2.6.28.7 (OpenWRT) and
compat-wireless 2009-03-31.
Signed-off-by: Steven Luo <steven@xxxxxxxxxxxxx>
---
--- a/drivers/net/wireless/ath9k/hw.c 2009-04-09 23:23:35.000000000 -0700
+++ b/drivers/net/wireless/ath9k/hw.c 2009-04-11 23:29:28.000000000 -0700
@@ -3007,6 +3007,7 @@ bool ath9k_hw_getisr(struct ath_hw *ah,
DPRINTF(ah->ah_sc, ATH_DBG_ANY,
"received PCI PERR interrupt\n");
}
+ *masked |= ATH9K_INT_FATAL;
}
if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) {
DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT,
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