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linux-next/arch/powerpc/platforms/maple
Michael Ellerman ef24ba7091 powerpc: Remove all usages of NO_IRQ
NO_IRQ has been == 0 on powerpc for just over ten years (since commit
0ebfff1491 ("[POWERPC] Add new interrupt mapping core and change
platforms to use it")). It's also 0 on most other arches.

Although it's fairly harmless, every now and then it causes confusion
when a driver is built on powerpc and another arch which doesn't define
NO_IRQ. There's at least 6 definitions of NO_IRQ in drivers/, at least
some of which are to work around that problem.

So we'd like to remove it. This is fairly trivial in the arch code, we
just convert:

    if (irq == NO_IRQ)	to	if (!irq)
    if (irq != NO_IRQ)	to	if (irq)
    irq = NO_IRQ;	to	irq = 0;
    return NO_IRQ;	to	return 0;

And a few other odd cases as well.

At least for now we keep the #define NO_IRQ, because there is driver
code that uses NO_IRQ and the fixes to remove those will go via other
trees.

Note we also change some occurrences in PPC sound drivers, drivers/ps3,
and drivers/macintosh.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-09-20 20:57:12 +10:00
..
Kconfig powerpc: Kconfig: remove BE-only platforms from LE kernel build 2015-09-29 22:57:00 +10:00
Makefile powerpc: Merge maple support code to arch/powerpc/platforms/maple 2005-10-29 22:07:56 +10:00
maple.h powerpc/maple: Move controller ops from ppc_md to controller_ops 2015-04-11 20:49:17 +10:00
pci.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
setup.c powerpc/sparse: Make a bunch of things static 2016-09-13 17:35:47 +10:00
time.c powerpc: Remove broken GregorianDay() 2015-12-16 12:54:04 +11:00