linux-stable/arch/powerpc/platforms/82xx
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
..
ep8248e.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00
Kconfig
km82xx.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00
m82xx_pci.h
Makefile powerpc/82xx: rename and update mgcoge board support 2011-03-15 10:06:37 -05:00
mpc8272_ads.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00
pq2.c powerpc: Make ppc_md.{halt, restart} __noreturn 2016-07-14 21:12:06 +10:00
pq2.h powerpc: Make ppc_md.{halt, restart} __noreturn 2016-07-14 21:12:06 +10:00
pq2ads-pci-pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
pq2ads.h powerpc/cpm: Remove some cruft code and defines 2009-05-19 00:47:19 -05:00
pq2fads.c powerpc: Move 32-bit probe() machine to later in the boot process 2016-07-21 19:06:42 +10:00