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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
..
ams drivers/macintosh: Delete owner assignment 2016-08-22 11:09:33 +10:00
Kconfig powerpc: use the new LED disk activity trigger 2016-06-27 08:58:40 +02:00
Makefile macintosh: therm_pm72: delete deprecated driver 2014-12-19 19:32:47 +01:00
adb-iop.c drivers/macintosh/adb-iop.c: flags should be unsigned long 2010-11-12 07:55:30 -08:00
adb.c powerpc: Move adb symbol exports next to function definitions 2014-09-25 23:14:37 +10:00
adbhid.c Fix common misspellings 2011-03-31 11:26:23 -03:00
ans-lcd.c macintosh/ans-lcd: fix build failure after module_init/exit relocation 2015-07-23 20:00:35 +10:00
ans-lcd.h [POWERPC] Copy over headers from arch/ppc to arch/powerpc that we need 2007-08-22 22:43:29 -05:00
apm_emu.c [POWERPC] apm_emu: Use generic apm-emulation 2007-05-02 16:42:19 +10:00
mac_hid.c macintosh: Convert use of typedef ctl_table to struct ctl_table 2013-07-01 11:10:35 +10:00
macio-adb.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
macio_asic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
macio_sysfs.c of/device: Replace struct of_device with struct platform_device 2010-08-06 09:25:50 -06:00
mediabay.c Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
rack-meter.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
smu.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
therm_adt746x.c powerpc/pmac: Convert therm_adt746x to new i2c probing 2012-04-30 15:37:18 +10:00
therm_windtunnel.c macintosh/therm_windtunnel: Export OF module alias information 2015-08-20 16:15:20 +10:00
via-cuda.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
via-macii.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
via-maciisi.c m68k/irq: Remove obsolete IRQ_FLG_* users 2011-11-08 22:35:48 +01:00
via-pmu-backlight.c backlight: Remove trivial get_brightness implementations 2014-06-23 13:24:22 +01:00
via-pmu-event.c Input: via-pmu - add input device support 2006-06-26 01:49:55 -04:00
via-pmu-event.h Input: via-pmu - add input device support 2006-06-26 01:49:55 -04:00
via-pmu-led.c powerpc: use the new LED disk activity trigger 2016-06-27 08:58:40 +02:00
via-pmu.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
via-pmu68k.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
windfarm.h windfarm: remove three exported but unused functions 2015-08-06 15:10:21 +10:00
windfarm_ad7417_sensor.c Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
windfarm_core.c windfarm: remove three exported but unused functions 2015-08-06 15:10:21 +10:00
windfarm_cpufreq_clamp.c powerpc/powermac: New windfarm driver for PowerMac G5 (AGP) and Xserve G5 2012-04-30 15:37:25 +10:00
windfarm_fcu_controls.c Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
windfarm_lm75_sensor.c powerpc/windfarm: Remove superfluous name casts 2013-12-05 16:06:22 +11:00
windfarm_lm87_sensor.c powerpc/windfarm: Add lm87 sensor 2012-04-30 15:37:21 +10:00
windfarm_max6690_sensor.c powerpc/windfarm: Remove superfluous name casts 2013-12-05 16:06:22 +11:00
windfarm_mpu.h powerpc/powermac: New windfarm driver for PowerMac G5 (AGP) and Xserve G5 2012-04-30 15:37:25 +10:00
windfarm_pid.c [PATCH] windfarm license fix 2006-03-06 18:40:45 -08:00
windfarm_pid.h [PATCH] powerpc: Thermal control for dual core G5s 2006-02-07 22:05:14 -08:00
windfarm_pm72.c drivers/macintosh: Delete owner assignment 2016-08-22 11:09:33 +10:00
windfarm_pm81.c macintosh: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
windfarm_pm91.c macintosh: drop owner assignment from platform_drivers 2014-10-20 16:20:43 +02:00
windfarm_pm112.c drivers/macintosh: Delete owner assignment 2016-08-22 11:09:33 +10:00
windfarm_pm121.c macintosh/windfarm_pm121.c: Fix for possible null pointer dereference 2014-05-20 10:56:00 +10:00
windfarm_rm31.c drivers/macintosh: Delete owner assignment 2016-08-22 11:09:33 +10:00
windfarm_smu_controls.c powerpc/windfarm: Remove spurrious sysfs_attr_init() 2012-04-30 15:37:20 +10:00
windfarm_smu_sat.c macintosh/windfarm: Remove obsolete cleanup for clientdata 2013-07-01 11:46:56 +10:00
windfarm_smu_sensors.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00