From: Holger Schurig Date: Thu, 5 Jun 2008 11:06:15 +0000 (+0200) Subject: libertas: fix interrupt issue X-Git-Tag: v2.6.27-rc1~969^2~324^2~54 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=3073556171f1cf2044ff38c1fc3b9f6c805f0873;p=~emulex%2Finfiniband.git libertas: fix interrupt issue This helps against lost interrupts and aids in debugging this. Signed-off-by: Holger Schurig Acked-by: Dan Williams Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 873ab10a078..b5d0cd4c411 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -379,6 +379,8 @@ static irqreturn_t if_cs_interrupt(int irq, void *data) /* Ask card interrupt cause register if there is something for us */ cause = if_cs_read16(card, IF_CS_CARD_INT_CAUSE); + lbs_deb_cs("cause 0x%04x\n", cause); + if (cause == 0) { /* Not for us */ return IRQ_NONE; @@ -390,10 +392,6 @@ static irqreturn_t if_cs_interrupt(int irq, void *data) return IRQ_HANDLED; } - /* Clear interrupt cause */ - if_cs_write16(card, IF_CS_CARD_INT_CAUSE, cause & IF_CS_BIT_MASK); - lbs_deb_cs("cause 0x%04x\n", cause); - if (cause & IF_CS_BIT_RX) { struct sk_buff *skb; lbs_deb_cs("rx packet\n"); @@ -434,6 +432,9 @@ static irqreturn_t if_cs_interrupt(int irq, void *data) lbs_queue_event(priv, event >> 8 & 0xff); } + /* Clear interrupt cause */ + if_cs_write16(card, IF_CS_CARD_INT_CAUSE, cause & IF_CS_BIT_MASK); + lbs_deb_leave(LBS_DEB_CS); return IRQ_HANDLED; }