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linux-next/arch/powerpc/platforms/chrp
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
..
chrp.h [POWERPC] Make pci_read_irq_line the default 2006-12-04 16:00:04 +11:00
gg2.h [POWERPC] Copy over headers from arch/ppc to arch/powerpc that we need 2007-08-22 22:43:29 -05:00
Kconfig pcspkr: Cleanup Kconfig dependencies 2011-06-09 15:01:41 +02:00
Makefile [POWERPC] disallow building powermac and tsi108 without PCI 2007-06-29 01:57:00 -05:00
nvram.c powerpc/nvram: Fix endian issue when reading the NVRAM size 2013-10-31 12:37:27 +11:00
pci.c POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
pegasos_eth.c mv643xx_eth: convert to use the Marvell Orion MDIO driver 2013-03-22 10:25:15 -04:00
setup.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
smp.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
time.c powerpc/nvram: Move things out of asm/nvram.h 2010-11-30 15:09:19 +11:00