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Message-ID: <alpine.LFD.2.00.0909141627500.4124@localhost>
Date: Mon, 14 Sep 2009 16:30:33 -0400 (EDT)
From: "Robert P. J. Day" <rpjday@...shcourse.ca>
To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: test for "spurious" IRQ ignores possible IRQ_WAKE_THREAD value
never ashamed to embarrass myself in public, i just noticed the
following. from kernel/irq/spurious.c:
...
static void
__report_bad_irq(unsigned int irq, struct irq_desc *desc,
irqreturn_t action_ret)
{
struct irqaction *action;
if (action_ret != IRQ_HANDLED && action_ret != IRQ_NONE) {
printk(KERN_ERR "irq event %d: bogus return value %x\n",
irq, action_ret);
but from include/linux/irqreturn.h, we see *three* possible return
values:
enum irqreturn {
IRQ_NONE,
IRQ_HANDLED,
IRQ_WAKE_THREAD,
};
typedef enum irqreturn irqreturn_t;
#define IRQ_RETVAL(x) ((x) != IRQ_NONE)
is there an inconsistency here?
rday
--
========================================================================
Robert P. J. Day Waterloo, Ontario, CANADA
Linux Consulting, Training and Annoying Kernel Pedantry.
Web page: http://crashcourse.ca
Twitter: http://twitter.com/rpjday
========================================================================
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