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alistair23-linux/arch/powerpc/platforms/86xx
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 updates for 4.8 # 1 2016-07-30 21:01:36 -07:00
Makefile powerpc/86xx: Add support for Emerson/Artesyn MVME7100 2016-07-08 20:01:27 -05:00
common.c powerpc/86xx: Consolidate common platform code 2016-03-11 19:14:12 -06:00
gef_ppc9a.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00
gef_sbc310.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00
gef_sbc610.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00
mpc86xx.h powerpc/86xx: Consolidate common platform code 2016-03-11 19:14:12 -06:00
mpc86xx_hpcn.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00
mpc86xx_smp.c powerpc/smp: smp_ops->kick_cpu() should be able to fail 2011-04-20 17:01:18 +10:00
mpc8610_hpcd.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00
mvme7100.c powerpc/86xx: Add support for Emerson/Artesyn MVME7100 2016-07-08 20:01:27 -05:00
pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
sbc8641d.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00