From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 25 Jan 2008 21:17:08 +0000 (+0100)
Subject: ide: remove IRQF_DISABLED from IRQ flags for IDE IRQ handler
X-Git-Tag: v2.6.25-rc1~1236^2~52
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7b5da4be3718c6b4cd771fb82e3e481b04790f0e;p=pandora-kernel.git

ide: remove IRQF_DISABLED from IRQ flags for IDE IRQ handler

IRQF_DISABLED is not needed because the first thing that ide_intr()
(IDE IRQ handler) does is calling spin_lock_irqsave() which disables
local IRQs (IRQ unmasking is later handled by drive->unmask).

kernel/irq/handle.c:

irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
...
	if (!(action->flags & IRQF_DISABLED))
		local_irq_enable_in_hardirq();

	do {
		ret = action->handler(irq, action->dev_id);
		if (ret == IRQ_HANDLED)
			status |= action->flags;
		retval |= ret;
		action = action->next;
	} while (action);
...

drivers/ide/ide-io.c:

irqreturn_t ide_intr (int irq, void *dev_id)
...
	spin_lock_irqsave(&ide_lock, flags);
...
	spin_unlock(&ide_lock);
...
	if (drive->unmask)
		local_irq_enable_in_hardirq();
...

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

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