Re: [PATCH 2/2] uio: add an of_genirq driver

Hello Hans,

quoted

+	uioinfo->irq = irq_of_parse_and_map(op->node, 0);
+	if (!uioinfo->irq)
+		uioinfo->irq = UIO_IRQ_NONE;

Please don't do this. It's inconsistent if all other UIO drivers require
people to use UIO_IRQ_NONE and you also allow zero. UIO_IRQ_NONE was
introduced because 0 may be a legal interrupt number on some platforms.

Yes, well, the '0' vs. 'NO_IRQ' thing is still not fully sorted out AFAIK. But
you are possibly right here, as long as irq_of_parse_and_map does return
NO_IRQ, I should explicitly check for it, like this:

	if (uioinfo->irq == NO_IRQ)
		uioinfo->irq = UIO_IRQ_NONE;

quoted

+/* Match table for of_platform binding */
+static const struct of_device_id __devinitconst uio_of_genirq_match[] = {

checkpatch.pl complains about that. Please check.

Did that, it is a false positive. See here:

http://lkml.indiana.edu/hypermail/linux/kernel/0906.1/02780.html

Regards,

   Wolfram

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