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wl1271: Implement looped IRQ handling

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This patch implements looped IRQ handling. In essence, if a new interrupt is
asserted by the FW while the host is processing the previous one, the host
will directly proceed processing the new IRQ without leaving the handling
function.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Juuso Oikarinen
2010-02-22 08:38:37 +02:00
committed by John W. Linville
parent 4aa0591705
commit 1e73eb62ce
4 changed files with 62 additions and 38 deletions
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4
drivers/net/wireless/wl12xx/wl1271_spi.c
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@@ -324,7 +324,9 @@ static irqreturn_t wl1271_irq(int irq, void *cookie)
wl->elp_compl = NULL;
}
ieee80211_queue_work(wl->hw, &wl->irq_work);
if (!test_and_set_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags))
ieee80211_queue_work(wl->hw, &wl->irq_work);
set_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags);
spin_unlock_irqrestore(&wl->wl_lock, flags);
return IRQ_HANDLED;