linux/arch/powerpc/sysdev
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
..
ge powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
xics powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
6xx-suspend.S powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
axonram.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
cpm1.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
cpm2_pic.c powerpc/cpm2: Use irq_set_handler_locked() 2015-09-16 15:43:10 +02:00
cpm2_pic.h
cpm2.c
cpm_common.c powerpc: sysdev: cpm: fix gpio save_regs functions 2016-08-22 11:09:33 +10:00
dart_iommu.c dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
dart.h
dcr-low.S
dcr.c powerpc: Use bool function return values of true/false not 1/0 2015-03-31 14:19:47 +11:00
ehv_pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_85xx_cache_ctlr.h powerpc/85xx: Fix sram_offset parameter type 2012-07-26 13:24:32 -05:00
fsl_85xx_cache_sram.c powerpc/85xx: Fix compiler error with THIS_MODULE and related 2012-03-16 14:50:25 -05:00
fsl_85xx_l2ctlr.c powerpc/85xx: Don't report SRAM to L2 cache fallback as error 2016-07-08 19:55:34 -05:00
fsl_gtm.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_lbc.c powerpc/fsl-lbc: Modify suspend/resume entry sequence 2016-03-09 10:44:17 -06:00
fsl_mpic_err.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_mpic_timer_wakeup.c powerpc/fsl: add MPIC timer wakeup support 2013-07-01 18:38:42 -05:00
fsl_msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_msi.h powerpc/85xx: workaround for chips with MSI hardware errata 2015-03-23 19:51:18 -05:00
fsl_pci.c powerpc/fsl-pci: Add a workaround for PCI 5 errata 2016-05-15 19:18:48 -05:00
fsl_pci.h EDAC, mpc85xx: Make mpc85xx-pci-edac a platform device 2015-12-11 16:56:16 +01:00
fsl_pmc.c powerpc: sysdev: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
fsl_rcpm.c powerpc/rcpm: Fix build break when SMP=n 2016-03-16 15:22:32 +11:00
fsl_rio.c powerpc: migrate exception table users off module.h and onto extable.h 2016-08-22 11:09:33 +10:00
fsl_rio.h rapidio: add global inbound port write interfaces 2016-03-22 15:36:02 -07:00
fsl_rmu.c rapidio: add global inbound port write interfaces 2016-03-22 15:36:02 -07:00
fsl_soc.c powerpc: Make ppc_md.{halt, restart} __noreturn 2016-07-14 21:12:06 +10:00
fsl_soc.h powerpc: Make ppc_md.{halt, restart} __noreturn 2016-07-14 21:12:06 +10:00
grackle.c
i8259.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
indirect_pci.c powerpc/fsl_pci: Fix pci stack build bug with FRAME_WARN 2015-01-29 19:56:15 -06:00
ipic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ipic.h irq_domain/powerpc: Use common irq_domain structure instead of irq_host 2012-02-14 14:06:50 -07:00
Kconfig powerpc/rcpm: add RCPM driver 2016-03-04 23:50:27 -06:00
Makefile powerpc/rcpm: add RCPM driver 2016-03-04 23:50:27 -06:00
micropatch.c powerpc/8xx: Remove empty asm/mpc8xx.h 2014-06-25 18:49:40 -05:00
mmio_nvram.c powerpc/sparse: Make a bunch of things static 2016-09-13 17:35:47 +10:00
mpc5xxx_clocks.c powerpc/mpc5xxx: Use of_get_next_parent to simplify code 2015-10-15 20:32:01 +11:00
mpc8xx_pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpc8xx_pic.h
mpic_msgr.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpic_msi.c irqdomain: Use irq_domain_get_of_node() instead of direct field access 2015-10-13 19:01:23 +02:00
mpic_timer.c powerpc/mpic_timer: fix convert ticks to time subtraction overflow 2014-01-09 17:52:14 -06:00
mpic_u3msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpic.h powerpc/pasemi: Only the build the pasemi MSI code for PASEMI=y 2015-05-11 19:55:25 +10:00
msi_bitmap.c treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
mv64x60_dev.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00
mv64x60_pci.c POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
mv64x60_pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mv64x60_udbg.c dt/bindings: Remove device_type "serial" from marvell,mv64360-mpsc 2014-01-16 16:31:31 +00:00
mv64x60.h
of_rtc.c powerpc: add explicit OF includes 2013-10-09 20:04:11 -05:00
pmi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ppc4xx_cpm.c powerpc/4xx/cpm: delete unneeded test before of_node_put 2014-11-10 09:59:34 +11:00
ppc4xx_gpio.c powerpc: ppc4xx: drop unused variable 2016-03-31 09:14:22 +02:00
ppc4xx_hsta_msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ppc4xx_msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ppc4xx_ocm.c powerpc/44x: Fix ocm_block allocation 2013-12-10 11:25:04 +11:00
ppc4xx_pci.c powerpc: Remove superfluous bootmem includes 2014-11-10 09:59:26 +11:00
ppc4xx_pci.h powerpc/476fpe: Add 476fpe SoC code 2011-12-09 07:51:02 -05:00
ppc4xx_soc.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
rtc_cmos_setup.c PTR_RET is now PTR_ERR_OR_ZERO(): Replace most. 2013-07-15 11:25:01 +09:30
scom.c powerpc/scom: Improve debugfs interface 2013-11-06 14:13:50 +11:00
simple_gpio.c powerpc: simple-gpio: use gpiochip data pointer 2016-03-30 10:53:23 +02:00
simple_gpio.h
tsi108_dev.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
tsi108_pci.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
udbg_memcons.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
uic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
xilinx_intc.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
xilinx_pci.c powerpc: make of_device_ids const 2014-09-25 23:14:46 +10:00