* [PATCH v2 00/18] genirq: Remove setup_irq()
@ 2020-02-24 0:47 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:59 UTC (permalink / raw)
To: linux-kernel, linux-arm-kernel, linux-samsung-soc, x86, linux-sh,
linux-s390, linuxppc-dev, linux-parisc, linux-mips, linux-m68k,
linux-ia64, linux-hexagon, linux-c6x-dev, linux-omap,
linux-alpha
Cc: Thomas Gleixner
While trying to understand internals of irq handling, came across a
thread [1] in which tglx was referring to avoid usage of setup_irq().
The early boot setup_irq() invocations happen either via 'init_IRQ()'
or 'time_init()', while memory allocators are ready by 'mm_init()'.
Hence instances of setup_irq() are replaced by request_irq() &
setup_irq() [along with remove_irq()] definition deleted in the last
patch.
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
Build & boot tested on ARM & x86_64 platforms (ensured that on the
machines used for testing, modifications made in this series is being
exercised at runtime)
Much of the changes were created using Coccinelle with an intention
to learn it. But not everything could be automated.
Searching with 'git grep -n '\Wsetup_irq('' & avoiding the irrelevant
ones, 153 invocation's of setup_irq() were found. 112 could be replaced
w/ cocci, of which in a few files some desired hunks were missing or
not as expected, these were fixed up manually. Also the remaining 41
had to be done manually.
Although cocci could replace 112, because of line continue not
happening at paranthesis for request_irq(), around 80 had to be
manually aligned in the request_irq() statement.
So though many changes could be automated, there are a considerable
amount of manual changes, please review carefully especially mips &
alpha.
Usage of setup_percpu_irq() is untouched w/ this series.
There are 2 checkpatch warning about usage of BUG(), they were already
present w/ setup_irq(), status quo maintained.
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Since changes from v1 are trivial as below, tags received has been
applied to the relevant patches, if any objections, please shout.
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* m68k: remove now irrelevant comment separation comment lines
* Commit message massage
afzal mohammed (18):
alpha: replace setup_irq() by request_irq()
ARM: replace setup_irq() by request_irq()
c6x: replace setup_irq() by request_irq()
hexagon: replace setup_irq() by request_irq()
ia64: replace setup_irq() by request_irq()
m68k: Replace setup_irq() by request_irq()
microblaze: Replace setup_irq() by request_irq()
MIPS: Replace setup_irq() by request_irq()
parisc: Replace setup_irq() by request_irq()
powerpc: Replace setup_irq() by request_irq()
s390: replace setup_irq() by request_irq()
sh: replace setup_irq() by request_irq()
unicore32: replace setup_irq() by request_irq()
x86: Replace setup_irq() by request_irq()
xtensa: replace setup_irq() by request_irq()
clocksource: Replace setup_irq() by request_irq()
irqchip: Replace setup_irq() by request_irq()
genirq: Remove setup_irq() and remove_irq()
arch/alpha/kernel/irq_alpha.c | 29 ++-------
arch/alpha/kernel/irq_i8259.c | 8 +--
arch/alpha/kernel/irq_impl.h | 7 +--
arch/alpha/kernel/irq_pyxis.c | 3 +-
arch/alpha/kernel/sys_alcor.c | 3 +-
arch/alpha/kernel/sys_cabriolet.c | 3 +-
arch/alpha/kernel/sys_eb64p.c | 3 +-
arch/alpha/kernel/sys_marvel.c | 2 +-
arch/alpha/kernel/sys_miata.c | 6 +-
arch/alpha/kernel/sys_ruffian.c | 3 +-
arch/alpha/kernel/sys_rx164.c | 3 +-
arch/alpha/kernel/sys_sx164.c | 3 +-
arch/alpha/kernel/sys_wildfire.c | 7 +--
arch/alpha/kernel/time.c | 6 +-
arch/arm/mach-cns3xxx/core.c | 10 +---
arch/arm/mach-ebsa110/core.c | 10 +---
arch/arm/mach-ep93xx/timer-ep93xx.c | 12 ++--
arch/arm/mach-footbridge/dc21285-timer.c | 11 +---
arch/arm/mach-footbridge/isa-irq.c | 8 +--
arch/arm/mach-footbridge/isa-timer.c | 11 +---
arch/arm/mach-iop32x/time.c | 12 ++--
arch/arm/mach-mmp/time.c | 11 +---
arch/arm/mach-omap1/pm.c | 22 ++++---
arch/arm/mach-omap1/time.c | 10 +---
arch/arm/mach-omap1/timer32k.c | 10 +---
arch/arm/mach-omap2/timer.c | 11 +---
arch/arm/mach-rpc/time.c | 8 +--
arch/arm/mach-spear/time.c | 9 +--
arch/arm/plat-orion/time.c | 10 +---
arch/c6x/platforms/timer64.c | 11 +---
arch/hexagon/kernel/smp.c | 17 +++---
arch/hexagon/kernel/time.c | 11 +---
arch/ia64/kernel/irq_ia64.c | 42 +++++--------
arch/ia64/kernel/mca.c | 51 +++++-----------
arch/m68k/68000/timers.c | 11 +---
arch/m68k/coldfire/pit.c | 11 +---
arch/m68k/coldfire/sltimers.c | 19 ++----
arch/m68k/coldfire/timers.c | 21 ++-----
arch/microblaze/kernel/timer.c | 10 +---
arch/mips/alchemy/common/time.c | 11 +---
arch/mips/ar7/irq.c | 18 +++---
arch/mips/ath25/ar2315.c | 9 +--
arch/mips/ath25/ar5312.c | 9 +--
arch/mips/bcm63xx/irq.c | 38 +++++-------
arch/mips/cobalt/irq.c | 14 ++---
arch/mips/dec/setup.c | 59 ++++++++-----------
arch/mips/emma/markeins/irq.c | 20 +++----
arch/mips/include/asm/sni.h | 2 +-
arch/mips/jazz/irq.c | 12 +---
arch/mips/kernel/cevt-bcm1480.c | 11 +---
arch/mips/kernel/cevt-ds1287.c | 9 +--
arch/mips/kernel/cevt-gt641xx.c | 9 +--
arch/mips/kernel/cevt-r4k.c | 4 +-
arch/mips/kernel/cevt-sb1250.c | 11 +---
arch/mips/kernel/cevt-txx9.c | 11 +---
arch/mips/kernel/i8253.c | 10 +---
arch/mips/kernel/rtlx-mt.c | 8 +--
arch/mips/kernel/smp.c | 33 ++++-------
arch/mips/lasat/interrupt.c | 10 +---
arch/mips/loongson2ef/common/bonito-irq.c | 9 +--
.../loongson2ef/common/cs5536/cs5536_mfgpt.c | 10 +---
arch/mips/loongson2ef/fuloong-2e/irq.c | 14 ++---
arch/mips/loongson2ef/lemote-2f/irq.c | 20 ++-----
arch/mips/loongson32/common/irq.c | 21 ++++---
arch/mips/loongson32/common/time.c | 12 ++--
arch/mips/loongson64/hpet.c | 10 +---
arch/mips/mti-malta/malta-int.c | 10 +---
arch/mips/netlogic/xlr/fmn.c | 9 +--
arch/mips/pmcs-msp71xx/msp_irq.c | 28 ++++-----
arch/mips/pmcs-msp71xx/msp_smp.c | 22 ++-----
arch/mips/pmcs-msp71xx/msp_time.c | 7 ++-
arch/mips/ralink/cevt-rt3352.c | 17 +++---
arch/mips/sgi-ip22/ip22-eisa.c | 8 +--
arch/mips/sgi-ip22/ip22-int.c | 49 +++++----------
arch/mips/sgi-ip32/ip32-irq.c | 18 ++----
arch/mips/sni/a20r.c | 4 +-
arch/mips/sni/irq.c | 8 +--
arch/mips/sni/pcit.c | 8 ++-
arch/mips/sni/rm200.c | 23 +++-----
arch/mips/sni/time.c | 10 +---
arch/mips/vr41xx/common/irq.c | 9 +--
arch/parisc/kernel/irq.c | 21 ++-----
arch/powerpc/platforms/85xx/mpc85xx_cds.c | 10 +---
arch/powerpc/platforms/8xx/cpm1.c | 9 +--
arch/powerpc/platforms/8xx/m8xx_setup.c | 9 +--
arch/powerpc/platforms/chrp/setup.c | 14 ++---
arch/powerpc/platforms/powermac/pic.c | 31 ++++------
arch/powerpc/platforms/powermac/smp.c | 9 +--
arch/s390/kernel/irq.c | 8 +--
arch/sh/boards/mach-cayman/irq.c | 18 ++----
arch/sh/drivers/dma/dma-pvr2.c | 9 +--
arch/unicore32/kernel/time.c | 11 +---
arch/x86/kernel/irqinit.c | 18 +++---
arch/x86/kernel/time.c | 10 +---
arch/xtensa/kernel/smp.c | 8 +--
arch/xtensa/kernel/time.c | 10 +---
drivers/clocksource/bcm2835_timer.c | 8 +--
drivers/clocksource/bcm_kona_timer.c | 10 +---
drivers/clocksource/dw_apb_timer.c | 11 +---
drivers/clocksource/exynos_mct.c | 12 ++--
drivers/clocksource/mxs_timer.c | 10 +---
drivers/clocksource/nomadik-mtu.c | 11 +---
drivers/clocksource/samsung_pwm_timer.c | 12 ++--
drivers/clocksource/timer-atlas7.c | 50 ++++++++--------
drivers/clocksource/timer-cs5535.c | 10 +---
drivers/clocksource/timer-efm32.c | 10 +---
drivers/clocksource/timer-fsl-ftm.c | 10 +---
drivers/clocksource/timer-imx-gpt.c | 10 +---
drivers/clocksource/timer-integrator-ap.c | 11 +---
drivers/clocksource/timer-meson6.c | 11 +---
drivers/clocksource/timer-orion.c | 9 +--
drivers/clocksource/timer-prima2.c | 11 +---
drivers/clocksource/timer-pxa.c | 10 +---
drivers/clocksource/timer-sp804.c | 11 +---
drivers/clocksource/timer-u300.c | 9 +--
drivers/clocksource/timer-vf-pit.c | 10 +---
drivers/clocksource/timer-vt8500.c | 11 +---
drivers/clocksource/timer-zevio.c | 13 ++--
drivers/irqchip/irq-i8259.c | 9 +--
drivers/irqchip/irq-ingenic.c | 11 ++--
drivers/parisc/eisa.c | 8 +--
drivers/s390/cio/airq.c | 8 +--
drivers/s390/cio/cio.c | 8 +--
include/linux/dw_apb_timer.h | 1 -
include/linux/irq.h | 2 -
kernel/irq/manage.c | 44 --------------
126 files changed, 528 insertions(+), 1117 deletions(-)
base-commit: v5.6-rc1
--
2.25.1
^ permalink raw reply [flat|nested] 78+ messages in thread* [PATCH v2 00/18] genirq: Remove setup_irq()
@ 2020-02-24 0:47 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:47 UTC (permalink / raw)
To: linux-kernel, linux-arm-kernel, linux-samsung-soc, x86, linux-sh,
linux-s390, linuxppc-dev, linux-parisc, linux-mips, linux-m68k,
linux-ia64, linux-hexagon, linux-c6x-dev, linux-omap,
linux-alpha
Cc: Thomas Gleixner
While trying to understand internals of irq handling, came across a
thread [1] in which tglx was referring to avoid usage of setup_irq().
The early boot setup_irq() invocations happen either via 'init_IRQ()'
or 'time_init()', while memory allocators are ready by 'mm_init()'.
Hence instances of setup_irq() are replaced by request_irq() &
setup_irq() [along with remove_irq()] definition deleted in the last
patch.
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
Build & boot tested on ARM & x86_64 platforms (ensured that on the
machines used for testing, modifications made in this series is being
exercised at runtime)
Much of the changes were created using Coccinelle with an intention
to learn it. But not everything could be automated.
Searching with 'git grep -n '\Wsetup_irq('' & avoiding the irrelevant
ones, 153 invocation's of setup_irq() were found. 112 could be replaced
w/ cocci, of which in a few files some desired hunks were missing or
not as expected, these were fixed up manually. Also the remaining 41
had to be done manually.
Although cocci could replace 112, because of line continue not
happening at paranthesis for request_irq(), around 80 had to be
manually aligned in the request_irq() statement.
So though many changes could be automated, there are a considerable
amount of manual changes, please review carefully especially mips &
alpha.
Usage of setup_percpu_irq() is untouched w/ this series.
There are 2 checkpatch warning about usage of BUG(), they were already
present w/ setup_irq(), status quo maintained.
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Since changes from v1 are trivial as below, tags received has been
applied to the relevant patches, if any objections, please shout.
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* m68k: remove now irrelevant comment separation comment lines
* Commit message massage
afzal mohammed (18):
alpha: replace setup_irq() by request_irq()
ARM: replace setup_irq() by request_irq()
c6x: replace setup_irq() by request_irq()
hexagon: replace setup_irq() by request_irq()
ia64: replace setup_irq() by request_irq()
m68k: Replace setup_irq() by request_irq()
microblaze: Replace setup_irq() by request_irq()
MIPS: Replace setup_irq() by request_irq()
parisc: Replace setup_irq() by request_irq()
powerpc: Replace setup_irq() by request_irq()
s390: replace setup_irq() by request_irq()
sh: replace setup_irq() by request_irq()
unicore32: replace setup_irq() by request_irq()
x86: Replace setup_irq() by request_irq()
xtensa: replace setup_irq() by request_irq()
clocksource: Replace setup_irq() by request_irq()
irqchip: Replace setup_irq() by request_irq()
genirq: Remove setup_irq() and remove_irq()
arch/alpha/kernel/irq_alpha.c | 29 ++-------
arch/alpha/kernel/irq_i8259.c | 8 +--
arch/alpha/kernel/irq_impl.h | 7 +--
arch/alpha/kernel/irq_pyxis.c | 3 +-
arch/alpha/kernel/sys_alcor.c | 3 +-
arch/alpha/kernel/sys_cabriolet.c | 3 +-
arch/alpha/kernel/sys_eb64p.c | 3 +-
arch/alpha/kernel/sys_marvel.c | 2 +-
arch/alpha/kernel/sys_miata.c | 6 +-
arch/alpha/kernel/sys_ruffian.c | 3 +-
arch/alpha/kernel/sys_rx164.c | 3 +-
arch/alpha/kernel/sys_sx164.c | 3 +-
arch/alpha/kernel/sys_wildfire.c | 7 +--
arch/alpha/kernel/time.c | 6 +-
arch/arm/mach-cns3xxx/core.c | 10 +---
arch/arm/mach-ebsa110/core.c | 10 +---
arch/arm/mach-ep93xx/timer-ep93xx.c | 12 ++--
arch/arm/mach-footbridge/dc21285-timer.c | 11 +---
arch/arm/mach-footbridge/isa-irq.c | 8 +--
arch/arm/mach-footbridge/isa-timer.c | 11 +---
arch/arm/mach-iop32x/time.c | 12 ++--
arch/arm/mach-mmp/time.c | 11 +---
arch/arm/mach-omap1/pm.c | 22 ++++---
arch/arm/mach-omap1/time.c | 10 +---
arch/arm/mach-omap1/timer32k.c | 10 +---
arch/arm/mach-omap2/timer.c | 11 +---
arch/arm/mach-rpc/time.c | 8 +--
arch/arm/mach-spear/time.c | 9 +--
arch/arm/plat-orion/time.c | 10 +---
arch/c6x/platforms/timer64.c | 11 +---
arch/hexagon/kernel/smp.c | 17 +++---
arch/hexagon/kernel/time.c | 11 +---
arch/ia64/kernel/irq_ia64.c | 42 +++++--------
arch/ia64/kernel/mca.c | 51 +++++-----------
arch/m68k/68000/timers.c | 11 +---
arch/m68k/coldfire/pit.c | 11 +---
arch/m68k/coldfire/sltimers.c | 19 ++----
arch/m68k/coldfire/timers.c | 21 ++-----
arch/microblaze/kernel/timer.c | 10 +---
arch/mips/alchemy/common/time.c | 11 +---
arch/mips/ar7/irq.c | 18 +++---
arch/mips/ath25/ar2315.c | 9 +--
arch/mips/ath25/ar5312.c | 9 +--
arch/mips/bcm63xx/irq.c | 38 +++++-------
arch/mips/cobalt/irq.c | 14 ++---
arch/mips/dec/setup.c | 59 ++++++++-----------
arch/mips/emma/markeins/irq.c | 20 +++----
arch/mips/include/asm/sni.h | 2 +-
arch/mips/jazz/irq.c | 12 +---
arch/mips/kernel/cevt-bcm1480.c | 11 +---
arch/mips/kernel/cevt-ds1287.c | 9 +--
arch/mips/kernel/cevt-gt641xx.c | 9 +--
arch/mips/kernel/cevt-r4k.c | 4 +-
arch/mips/kernel/cevt-sb1250.c | 11 +---
arch/mips/kernel/cevt-txx9.c | 11 +---
arch/mips/kernel/i8253.c | 10 +---
arch/mips/kernel/rtlx-mt.c | 8 +--
arch/mips/kernel/smp.c | 33 ++++-------
arch/mips/lasat/interrupt.c | 10 +---
arch/mips/loongson2ef/common/bonito-irq.c | 9 +--
.../loongson2ef/common/cs5536/cs5536_mfgpt.c | 10 +---
arch/mips/loongson2ef/fuloong-2e/irq.c | 14 ++---
arch/mips/loongson2ef/lemote-2f/irq.c | 20 ++-----
arch/mips/loongson32/common/irq.c | 21 ++++---
arch/mips/loongson32/common/time.c | 12 ++--
arch/mips/loongson64/hpet.c | 10 +---
arch/mips/mti-malta/malta-int.c | 10 +---
arch/mips/netlogic/xlr/fmn.c | 9 +--
arch/mips/pmcs-msp71xx/msp_irq.c | 28 ++++-----
arch/mips/pmcs-msp71xx/msp_smp.c | 22 ++-----
arch/mips/pmcs-msp71xx/msp_time.c | 7 ++-
arch/mips/ralink/cevt-rt3352.c | 17 +++---
arch/mips/sgi-ip22/ip22-eisa.c | 8 +--
arch/mips/sgi-ip22/ip22-int.c | 49 +++++----------
arch/mips/sgi-ip32/ip32-irq.c | 18 ++----
arch/mips/sni/a20r.c | 4 +-
arch/mips/sni/irq.c | 8 +--
arch/mips/sni/pcit.c | 8 ++-
arch/mips/sni/rm200.c | 23 +++-----
arch/mips/sni/time.c | 10 +---
arch/mips/vr41xx/common/irq.c | 9 +--
arch/parisc/kernel/irq.c | 21 ++-----
arch/powerpc/platforms/85xx/mpc85xx_cds.c | 10 +---
arch/powerpc/platforms/8xx/cpm1.c | 9 +--
arch/powerpc/platforms/8xx/m8xx_setup.c | 9 +--
arch/powerpc/platforms/chrp/setup.c | 14 ++---
arch/powerpc/platforms/powermac/pic.c | 31 ++++------
arch/powerpc/platforms/powermac/smp.c | 9 +--
arch/s390/kernel/irq.c | 8 +--
arch/sh/boards/mach-cayman/irq.c | 18 ++----
arch/sh/drivers/dma/dma-pvr2.c | 9 +--
arch/unicore32/kernel/time.c | 11 +---
arch/x86/kernel/irqinit.c | 18 +++---
arch/x86/kernel/time.c | 10 +---
arch/xtensa/kernel/smp.c | 8 +--
arch/xtensa/kernel/time.c | 10 +---
drivers/clocksource/bcm2835_timer.c | 8 +--
drivers/clocksource/bcm_kona_timer.c | 10 +---
drivers/clocksource/dw_apb_timer.c | 11 +---
drivers/clocksource/exynos_mct.c | 12 ++--
drivers/clocksource/mxs_timer.c | 10 +---
drivers/clocksource/nomadik-mtu.c | 11 +---
drivers/clocksource/samsung_pwm_timer.c | 12 ++--
drivers/clocksource/timer-atlas7.c | 50 ++++++++--------
drivers/clocksource/timer-cs5535.c | 10 +---
drivers/clocksource/timer-efm32.c | 10 +---
drivers/clocksource/timer-fsl-ftm.c | 10 +---
drivers/clocksource/timer-imx-gpt.c | 10 +---
drivers/clocksource/timer-integrator-ap.c | 11 +---
drivers/clocksource/timer-meson6.c | 11 +---
drivers/clocksource/timer-orion.c | 9 +--
drivers/clocksource/timer-prima2.c | 11 +---
drivers/clocksource/timer-pxa.c | 10 +---
drivers/clocksource/timer-sp804.c | 11 +---
drivers/clocksource/timer-u300.c | 9 +--
drivers/clocksource/timer-vf-pit.c | 10 +---
drivers/clocksource/timer-vt8500.c | 11 +---
drivers/clocksource/timer-zevio.c | 13 ++--
drivers/irqchip/irq-i8259.c | 9 +--
drivers/irqchip/irq-ingenic.c | 11 ++--
drivers/parisc/eisa.c | 8 +--
drivers/s390/cio/airq.c | 8 +--
drivers/s390/cio/cio.c | 8 +--
include/linux/dw_apb_timer.h | 1 -
include/linux/irq.h | 2 -
kernel/irq/manage.c | 44 --------------
126 files changed, 528 insertions(+), 1117 deletions(-)
base-commit: v5.6-rc1
--
2.25.1
_______________________________________________
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^ permalink raw reply [flat|nested] 78+ messages in thread* [PATCH v2 01/18] alpha: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
(?)
(?)
@ 2020-02-24 0:48 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:48 UTC (permalink / raw)
To: linux-kernel, linux-alpha
Cc: Richard Henderson, Ivan Kokshaysky, Thomas Gleixner, Matt Turner
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/alpha/kernel/irq_alpha.c | 29 +++++------------------------
arch/alpha/kernel/irq_i8259.c | 8 ++------
arch/alpha/kernel/irq_impl.h | 7 +------
arch/alpha/kernel/irq_pyxis.c | 3 ++-
arch/alpha/kernel/sys_alcor.c | 3 ++-
arch/alpha/kernel/sys_cabriolet.c | 3 ++-
arch/alpha/kernel/sys_eb64p.c | 3 ++-
arch/alpha/kernel/sys_marvel.c | 2 +-
arch/alpha/kernel/sys_miata.c | 6 ++++--
arch/alpha/kernel/sys_ruffian.c | 3 ++-
arch/alpha/kernel/sys_rx164.c | 3 ++-
arch/alpha/kernel/sys_sx164.c | 3 ++-
arch/alpha/kernel/sys_wildfire.c | 7 ++-----
arch/alpha/kernel/time.c | 6 ++----
14 files changed, 31 insertions(+), 55 deletions(-)
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index da3e10d5f7fe..fe46a7bdbf68 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -213,32 +213,13 @@ process_mcheck_info(unsigned long vector, unsigned long la_ptr,
* The special RTC interrupt type. The interrupt itself was
* processed by PALcode, and comes in via entInt vector 1.
*/
-
-struct irqaction timer_irqaction = {
- .handler = rtc_timer_interrupt,
- .name = "timer",
-};
-
void __init
-init_rtc_irq(void)
+init_rtc_irq(irqreturn_t handler)
{
irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
handle_percpu_irq, "RTC");
- setup_irq(RTC_IRQ, &timer_irqaction);
+ if (!handler)
+ handler = rtc_timer_interrupt;
+ if (request_irq(RTC_IRQ, handler, 0, "timer", NULL))
+ pr_err("request_irq() for %s failed\n", "timer");
}
-
-/* Dummy irqactions. */
-struct irqaction isa_cascade_irqaction = {
- .handler = no_action,
- .name = "isa-cascade"
-};
-
-struct irqaction timer_cascade_irqaction = {
- .handler = no_action,
- .name = "timer-cascade"
-};
-
-struct irqaction halt_switch_irqaction = {
- .handler = no_action,
- .name = "halt-switch"
-};
diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c
index 5d54c076a8ae..85a854655c67 100644
--- a/arch/alpha/kernel/irq_i8259.c
+++ b/arch/alpha/kernel/irq_i8259.c
@@ -82,11 +82,6 @@ struct irq_chip i8259a_irq_type = {
void __init
init_i8259a_irqs(void)
{
- static struct irqaction cascade = {
- .handler = no_action,
- .name = "cascade",
- };
-
long i;
outb(0xff, 0x21); /* mask all of 8259A-1 */
@@ -96,7 +91,8 @@ init_i8259a_irqs(void)
irq_set_chip_and_handler(i, &i8259a_irq_type, handle_level_irq);
}
- setup_irq(2, &cascade);
+ if (request_irq(2, no_action, 0, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h
index 16f2b0276f3a..7ac58be4ccf4 100644
--- a/arch/alpha/kernel/irq_impl.h
+++ b/arch/alpha/kernel/irq_impl.h
@@ -21,14 +21,9 @@ extern void isa_no_iack_sc_device_interrupt(unsigned long);
extern void srm_device_interrupt(unsigned long);
extern void pyxis_device_interrupt(unsigned long);
-extern struct irqaction timer_irqaction;
-extern struct irqaction isa_cascade_irqaction;
-extern struct irqaction timer_cascade_irqaction;
-extern struct irqaction halt_switch_irqaction;
-
extern void init_srm_irqs(long, unsigned long);
extern void init_pyxis_irqs(unsigned long);
-extern void init_rtc_irq(void);
+extern void init_rtc_irq(irqreturn_t handler);
extern void common_init_isa_dma(void);
diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c
index a968b10e687d..41b613f44da0 100644
--- a/arch/alpha/kernel/irq_pyxis.c
+++ b/arch/alpha/kernel/irq_pyxis.c
@@ -107,5 +107,6 @@ init_pyxis_irqs(unsigned long ignore_mask)
irq_set_status_flags(i, IRQ_LEVEL);
}
- setup_irq(16+7, &isa_cascade_irqaction);
+ if (request_irq(16 + 7, no_action, 0, "isa-cascade", NULL))
+ pr_err("request_irq() for %s failed\n", "isa-cascade");
}
diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c
index e56efd5b855f..2db834bf7a84 100644
--- a/arch/alpha/kernel/sys_alcor.c
+++ b/arch/alpha/kernel/sys_alcor.c
@@ -133,7 +133,8 @@ alcor_init_irq(void)
init_i8259a_irqs();
common_init_isa_dma();
- setup_irq(16+31, &isa_cascade_irqaction);
+ if (request_irq(16 + 31, no_action, 0, "isa-cascade", NULL))
+ pr_err("request_irq() for %s failed\n", "isa-cascade");
}
diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c
index 10bc46a4ec40..3d4ee60ca930 100644
--- a/arch/alpha/kernel/sys_cabriolet.c
+++ b/arch/alpha/kernel/sys_cabriolet.c
@@ -112,7 +112,8 @@ common_init_irq(void (*srm_dev_int)(unsigned long v))
}
common_init_isa_dma();
- setup_irq(16+4, &isa_cascade_irqaction);
+ if (request_irq(16 + 4, no_action, 0, "isa-cascade", NULL))
+ pr_err("request_irq() for %s failed\n", "isa-cascade");
}
#ifndef CONFIG_ALPHA_PC164
diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c
index 5251937ec1b4..6c7f15703dad 100644
--- a/arch/alpha/kernel/sys_eb64p.c
+++ b/arch/alpha/kernel/sys_eb64p.c
@@ -123,7 +123,8 @@ eb64p_init_irq(void)
}
common_init_isa_dma();
- setup_irq(16+5, &isa_cascade_irqaction);
+ if (request_irq(16 + 5, no_action, 0, "isa-cascade", NULL))
+ pr_err("request_irq() for %s failed\n", "isa-cascade");
}
/*
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 8d34cf6e002a..533899a4a1a1 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -397,7 +397,7 @@ marvel_init_pci(void)
static void __init
marvel_init_rtc(void)
{
- init_rtc_irq();
+ init_rtc_irq(NULL);
}
static void
diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c
index 6fa07dc5339d..edff228ae451 100644
--- a/arch/alpha/kernel/sys_miata.c
+++ b/arch/alpha/kernel/sys_miata.c
@@ -81,8 +81,10 @@ miata_init_irq(void)
init_pyxis_irqs(0x63b0000);
common_init_isa_dma();
- setup_irq(16+2, &halt_switch_irqaction); /* SRM only? */
- setup_irq(16+6, &timer_cascade_irqaction);
+ if (request_irq(16 + 2, no_action, 0, "halt-switch", NULL))
+ pr_err("request_irq() for %s failed\n", "halt-switch");
+ if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL))
+ pr_err("request_irq() for %s failed\n", "timer-cascade");
}
diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c
index 07830cccabf9..f2ff64b6553e 100644
--- a/arch/alpha/kernel/sys_ruffian.c
+++ b/arch/alpha/kernel/sys_ruffian.c
@@ -82,7 +82,8 @@ ruffian_init_rtc(void)
outb(0x31, 0x42);
outb(0x13, 0x42);
- setup_irq(0, &timer_irqaction);
+ if (request_irq(0, rtc_timer_interrupt, 0, "timer", NULL))
+ pr_err("request_irq() for %s failed\n", "timer");
}
static void
diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c
index a3db719d3c38..46c3bd7ed910 100644
--- a/arch/alpha/kernel/sys_rx164.c
+++ b/arch/alpha/kernel/sys_rx164.c
@@ -106,7 +106,8 @@ rx164_init_irq(void)
init_i8259a_irqs();
common_init_isa_dma();
- setup_irq(16+20, &isa_cascade_irqaction);
+ if (request_irq(16 + 20, no_action, 0, "isa-cascade", NULL))
+ pr_err("request_irq() for %s failed\n", "isa-cascade");
}
diff --git a/arch/alpha/kernel/sys_sx164.c b/arch/alpha/kernel/sys_sx164.c
index 1ec638a2746a..f6f85b2a9c96 100644
--- a/arch/alpha/kernel/sys_sx164.c
+++ b/arch/alpha/kernel/sys_sx164.c
@@ -54,7 +54,8 @@ sx164_init_irq(void)
else
init_pyxis_irqs(0xff00003f0000UL);
- setup_irq(16+6, &timer_cascade_irqaction);
+ if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL))
+ pr_err("request_irq() for %s failed\n", "timer-cascade");
}
/*
diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
index 8e64052811ab..ceddbf95897f 100644
--- a/arch/alpha/kernel/sys_wildfire.c
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -156,10 +156,6 @@ static void __init
wildfire_init_irq_per_pca(int qbbno, int pcano)
{
int i, irq_bias;
- static struct irqaction isa_enable = {
- .handler = no_action,
- .name = "isa_enable",
- };
irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
+ pcano * WILDFIRE_IRQ_PER_PCA;
@@ -198,7 +194,8 @@ wildfire_init_irq_per_pca(int qbbno, int pcano)
irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
}
- setup_irq(32+irq_bias, &isa_enable);
+ if (request_irq(32 + irq_bias, no_action, 0, "isa_enable", NULL))
+ pr_err("%s: request_irq() failed\n", "isa_enable");
}
static void __init
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 0069360697ee..4d01c392ab14 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -242,7 +242,7 @@ common_init_rtc(void)
outb(0x31, 0x42);
outb(0x13, 0x42);
- init_rtc_irq();
+ init_rtc_irq(NULL);
}
\f
@@ -396,9 +396,7 @@ time_init(void)
if (alpha_using_qemu) {
clocksource_register_hz(&qemu_cs, NSEC_PER_SEC);
init_qemu_clockevent();
-
- timer_irqaction.handler = qemu_timer_interrupt;
- init_rtc_irq();
+ init_rtc_irq(qemu_timer_interrupt);
return;
}
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 02/18] ARM: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
@ 2020-02-24 0:49 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:49 UTC (permalink / raw)
To: linux-arm-kernel, linux-kernel, linux-omap
Cc: Krzysztof Halasa, Russell King, Hartley Sweeten,
Alexander Sverdlin, Lubomir Rintel, Kevin Hilman, Aaro Koskinen,
Tony Lindgren, Viresh Kumar, Shiraz Hashim, Jason Cooper,
Andrew Lunn, Sebastian Hesselbarth, Gregory Clement,
Allison Randal, Greg Kroah-Hartman, Thomas Gleixner,
Arnd Bergmann, Enrico Weigelt
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/arm/mach-cns3xxx/core.c | 10 +++-------
arch/arm/mach-ebsa110/core.c | 10 +++-------
arch/arm/mach-ep93xx/timer-ep93xx.c | 12 ++++--------
| 11 +++--------
| 8 ++------
| 11 +++--------
arch/arm/mach-iop32x/time.c | 12 ++++--------
arch/arm/mach-mmp/time.c | 11 +++--------
arch/arm/mach-omap1/pm.c | 22 +++++++++++++---------
arch/arm/mach-omap1/time.c | 10 +++-------
arch/arm/mach-omap1/timer32k.c | 10 +++-------
arch/arm/mach-omap2/timer.c | 11 +++--------
arch/arm/mach-rpc/time.c | 8 ++------
arch/arm/mach-spear/time.c | 9 ++-------
arch/arm/plat-orion/time.c | 10 +++-------
15 files changed, 54 insertions(+), 111 deletions(-)
diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
index 1d61a7701c11..711d88b64f2e 100644
--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -189,12 +189,6 @@ static irqreturn_t cns3xxx_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction cns3xxx_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = cns3xxx_timer_interrupt,
-};
-
/*
* Set up the clock source and clock events devices
*/
@@ -245,7 +239,9 @@ static void __init __cns3xxx_timer_init(unsigned int timer_irq)
writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
/* Make irqs happen for the system timer */
- setup_irq(timer_irq, &cns3xxx_timer_irq);
+ if (request_irq(timer_irq, cns3xxx_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
cns3xxx_clockevents_init(timer_irq);
}
diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
index da2ff4f61d6b..dfe6da30a3e0 100644
--- a/arch/arm/mach-ebsa110/core.c
+++ b/arch/arm/mach-ebsa110/core.c
@@ -201,12 +201,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ebsa110_timer_irq = {
- .name = "EBSA110 Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ebsa110_timer_interrupt,
-};
-
/*
* Set up timer interrupt.
*/
@@ -221,7 +215,9 @@ void __init ebsa110_timer_init(void)
__raw_writeb(COUNT & 0xff, PIT_T1);
__raw_writeb(COUNT >> 8, PIT_T1);
- setup_irq(IRQ_EBSA110_TIMER0, &ebsa110_timer_irq);
+ if (request_irq(IRQ_EBSA110_TIMER0, ebsa110_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "EBSA110 Timer Tick", NULL))
+ pr_err("%s: request_irq() failed\n", "EBSA110 Timer Tick");
}
static struct plat_serial8250_port serial_platform_data[] = {
diff --git a/arch/arm/mach-ep93xx/timer-ep93xx.c b/arch/arm/mach-ep93xx/timer-ep93xx.c
index de998830f534..01f7e2b0b9fe 100644
--- a/arch/arm/mach-ep93xx/timer-ep93xx.c
+++ b/arch/arm/mach-ep93xx/timer-ep93xx.c
@@ -117,13 +117,6 @@ static irqreturn_t ep93xx_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ep93xx_timer_irq = {
- .name = "ep93xx timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ep93xx_timer_interrupt,
- .dev_id = &ep93xx_clockevent,
-};
-
void __init ep93xx_timer_init(void)
{
/* Enable and register clocksource and sched_clock on timer 4 */
@@ -136,7 +129,10 @@ void __init ep93xx_timer_init(void)
EP93XX_TIMER4_RATE);
/* Set up clockevent on timer 3 */
- setup_irq(IRQ_EP93XX_TIMER3, &ep93xx_timer_irq);
+ if (request_irq(IRQ_EP93XX_TIMER3, ep93xx_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "ep93xx timer",
+ &ep93xx_clockevent))
+ pr_err("%s: request_irq() failed\n", "ep93xx timer");
clockevents_config_and_register(&ep93xx_clockevent,
EP93XX_TIMER123_RATE,
1,
--git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c
index f76212d2dbf1..ce70931037c0 100644
--- a/arch/arm/mach-footbridge/dc21285-timer.c
+++ b/arch/arm/mach-footbridge/dc21285-timer.c
@@ -101,13 +101,6 @@ static irqreturn_t timer1_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction footbridge_timer_irq = {
- .name = "dc21285_timer1",
- .handler = timer1_interrupt,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .dev_id = &ckevt_dc21285,
-};
-
/*
* Set up timer interrupt.
*/
@@ -118,7 +111,9 @@ void __init footbridge_timer_init(void)
clocksource_register_hz(&cksrc_dc21285, rate);
- setup_irq(ce->irq, &footbridge_timer_irq);
+ if (request_irq(ce->irq, timer1_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "dc21285_timer1", &ckevt_dc21285))
+ pr_err("%s: request_irq() failed\n", "dc21285_timer1");
ce->cpumask = cpumask_of(smp_processor_id());
clockevents_config_and_register(ce, rate, 0x4, 0xffffff);
--git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
index 88a553932c33..a259d5d8eb20 100644
--- a/arch/arm/mach-footbridge/isa-irq.c
+++ b/arch/arm/mach-footbridge/isa-irq.c
@@ -96,11 +96,6 @@ static void isa_irq_handler(struct irq_desc *desc)
generic_handle_irq(isa_irq);
}
-static struct irqaction irq_cascade = {
- .handler = no_action,
- .name = "cascade",
-};
-
static struct resource pic1_resource = {
.name = "pic1",
.start = 0x20,
@@ -160,7 +155,8 @@ void __init isa_init_irq(unsigned int host_irq)
request_resource(&ioport_resource, &pic1_resource);
request_resource(&ioport_resource, &pic2_resource);
- setup_irq(IRQ_ISA_CASCADE, &irq_cascade);
+ if (request_irq(IRQ_ISA_CASCADE, no_action, 0, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
irq_set_chained_handler(host_irq, isa_irq_handler);
--git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c
index 82f45591fb2c..6c7c6ea03804 100644
--- a/arch/arm/mach-footbridge/isa-timer.c
+++ b/arch/arm/mach-footbridge/isa-timer.c
@@ -25,17 +25,12 @@ static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction pit_timer_irq = {
- .name = "pit",
- .handler = pit_timer_interrupt,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .dev_id = &i8253_clockevent,
-};
-
void __init isa_timer_init(void)
{
clocksource_i8253_init();
- setup_irq(i8253_clockevent.irq, &pit_timer_irq);
+ if (request_irq(i8253_clockevent.irq, pit_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "pit", &i8253_clockevent))
+ pr_err("%s: request_irq() failed\n", "pit");
clockevent_i8253_init(false);
}
diff --git a/arch/arm/mach-iop32x/time.c b/arch/arm/mach-iop32x/time.c
index 18a4df5c1baa..422e298366bd 100644
--- a/arch/arm/mach-iop32x/time.c
+++ b/arch/arm/mach-iop32x/time.c
@@ -137,13 +137,6 @@ iop_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction iop_timer_irq = {
- .name = "IOP Timer Tick",
- .handler = iop_timer_interrupt,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .dev_id = &iop_clockevent,
-};
-
static unsigned long iop_tick_rate;
unsigned long get_iop_tick_rate(void)
{
@@ -168,7 +161,10 @@ void __init iop_init_time(unsigned long tick_rate)
*/
write_tmr0(timer_ctl & ~IOP_TMR_EN);
write_tisr(1);
- setup_irq(IRQ_IOP32X_TIMER0, &iop_timer_irq);
+ if (request_irq(IRQ_IOP32X_TIMER0, iop_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "IOP Timer Tick",
+ &iop_clockevent))
+ pr_err("%s: request_irq() failed\n", "IOP Timer Tick");
iop_clockevent.cpumask = cpumask_of(0);
clockevents_config_and_register(&iop_clockevent, tick_rate,
0xf, 0xfffffffe);
diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
index c65cfc1ad99b..83af1db45c15 100644
--- a/arch/arm/mach-mmp/time.c
+++ b/arch/arm/mach-mmp/time.c
@@ -175,13 +175,6 @@ static void __init timer_config(void)
__raw_writel(0x2, mmp_timer_base + TMR_CER);
}
-static struct irqaction timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = timer_interrupt,
- .dev_id = &ckevt,
-};
-
void __init mmp_timer_init(int irq, unsigned long rate)
{
timer_config();
@@ -190,7 +183,9 @@ void __init mmp_timer_init(int irq, unsigned long rate)
ckevt.cpumask = cpumask_of(0);
- setup_irq(irq, &timer_irq);
+ if (request_irq(irq, timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &ckevt))
+ pr_err("%s: request_irq() failed\n", "timer");
clocksource_register_hz(&cksrc, rate);
clockevents_config_and_register(&ckevt, rate, MIN_DELTA, MAX_DELTA);
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index d068958d6f8a..a82e220783d1 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -596,11 +596,6 @@ static irqreturn_t omap_wakeup_interrupt(int irq, void *dev)
return IRQ_HANDLED;
}
-static struct irqaction omap_wakeup_irq = {
- .name = "peripheral wakeup",
- .handler = omap_wakeup_interrupt
-};
-
static const struct platform_suspend_ops omap_pm_ops = {
@@ -655,10 +650,19 @@ static int __init omap_pm_init(void)
arm_pm_idle = omap1_pm_idle;
- if (cpu_is_omap7xx())
- setup_irq(INT_7XX_WAKE_UP_REQ, &omap_wakeup_irq);
- else if (cpu_is_omap16xx())
- setup_irq(INT_1610_WAKE_UP_REQ, &omap_wakeup_irq);
+ if (cpu_is_omap7xx()) {
+ if (request_irq(INT_7XX_WAKE_UP_REQ, omap_wakeup_interrupt, 0,
+ "peripheral wakeup", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "peripheral wakeup");
+ }
+ } else if (cpu_is_omap16xx()) {
+ if (request_irq(INT_1610_WAKE_UP_REQ, omap_wakeup_interrupt, 0,
+ "peripheral wakeup", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "peripheral wakeup");
+ }
+ }
/* Program new power ramp-up time
* (0 for most boards since we don't lower voltage when in deep sleep)
diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
index 524977a31a49..2bd6c4dc6c1f 100644
--- a/arch/arm/mach-omap1/time.c
+++ b/arch/arm/mach-omap1/time.c
@@ -155,15 +155,11 @@ static irqreturn_t omap_mpu_timer1_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction omap_mpu_timer1_irq = {
- .name = "mpu_timer1",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = omap_mpu_timer1_interrupt,
-};
-
static __init void omap_init_mpu_timer(unsigned long rate)
{
- setup_irq(INT_TIMER1, &omap_mpu_timer1_irq);
+ if (request_irq(INT_TIMER1, omap_mpu_timer1_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "mpu_timer1", NULL))
+ pr_err("%s: request_irq() failed\n", "mpu_timer1");
omap_mpu_timer_start(0, (rate / HZ) - 1, 1);
clockevent_mpu_timer1.cpumask = cpumask_of(0);
diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
index 0ae6c52a7d70..1435faca19d8 100644
--- a/arch/arm/mach-omap1/timer32k.c
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -148,15 +148,11 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction omap_32k_timer_irq = {
- .name = "32KHz timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = omap_32k_timer_interrupt,
-};
-
static __init void omap_init_32k_timer(void)
{
- setup_irq(INT_OS_TIMER, &omap_32k_timer_irq);
+ if (request_irq(INT_OS_TIMER, omap_32k_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "32KHz timer", NULL))
+ pr_err("%s: request_irq() failed\n", "32KHz timer");
clockevent_32k_timer.cpumask = cpumask_of(0);
clockevents_config_and_register(&clockevent_32k_timer,
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 0d0a731cb476..7cf91f42dbd1 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -91,12 +91,6 @@ static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction omap2_gp_timer_irq = {
- .name = "gp_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = omap2_gp_timer_interrupt,
-};
-
static int omap2_gp_timer_set_next_event(unsigned long cycles,
struct clock_event_device *evt)
{
@@ -382,8 +376,9 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
&clockevent_gpt.name, OMAP_TIMER_POSTED);
BUG_ON(res);
- omap2_gp_timer_irq.dev_id = &clkev;
- setup_irq(clkev.irq, &omap2_gp_timer_irq);
+ if (request_irq(clkev.irq, omap2_gp_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "gp_timer", &clkev))
+ pr_err("%s: request_irq() failed\n", "gp_timer");
__omap_dm_timer_int_enable(&clkev, OMAP_TIMER_INT_OVERFLOW);
diff --git a/arch/arm/mach-rpc/time.c b/arch/arm/mach-rpc/time.c
index 1d750152b160..3b7d3baa8ac1 100644
--- a/arch/arm/mach-rpc/time.c
+++ b/arch/arm/mach-rpc/time.c
@@ -85,11 +85,6 @@ ioc_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ioc_timer_irq = {
- .name = "timer",
- .handler = ioc_timer_interrupt
-};
-
/*
* Set up timer interrupt.
*/
@@ -97,5 +92,6 @@ void __init ioc_timer_init(void)
{
WARN_ON(clocksource_register_hz(&ioctime_clocksource, RPC_CLOCK_FREQ));
ioctime_init();
- setup_irq(IRQ_TIMER0, &ioc_timer_irq);
+ if (request_irq(IRQ_TIMER0, ioc_timer_interrupt, 0, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
}
diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c
index 289e036c9c30..b69acc04db4a 100644
--- a/arch/arm/mach-spear/time.c
+++ b/arch/arm/mach-spear/time.c
@@ -181,12 +181,6 @@ static irqreturn_t spear_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction spear_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER,
- .handler = spear_timer_interrupt
-};
-
static void __init spear_clockevent_init(int irq)
{
u32 tick_rate;
@@ -201,7 +195,8 @@ static void __init spear_clockevent_init(int irq)
clockevents_config_and_register(&clkevt, tick_rate, 3, 0xfff0);
- setup_irq(irq, &spear_timer_irq);
+ if (request_irq(irq, spear_timer_interrupt, IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
}
static const struct of_device_id timer_of_match[] __initconst = {
diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
index ffb93db68e9c..0a1faa95ecff 100644
--- a/arch/arm/plat-orion/time.c
+++ b/arch/arm/plat-orion/time.c
@@ -177,12 +177,6 @@ static irqreturn_t orion_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction orion_timer_irq = {
- .name = "orion_tick",
- .flags = IRQF_TIMER,
- .handler = orion_timer_interrupt
-};
-
void __init
orion_time_set_base(void __iomem *_timer_base)
{
@@ -236,7 +230,9 @@ orion_time_init(void __iomem *_bridge_base, u32 _bridge_timer1_clr_mask,
/*
* Setup clockevent timer (interrupt-driven).
*/
- setup_irq(irq, &orion_timer_irq);
+ if (request_irq(irq, orion_timer_interrupt, IRQF_TIMER, "orion_tick",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "orion_tick");
orion_clkevt.cpumask = cpumask_of(0);
clockevents_config_and_register(&orion_clkevt, tclk, 1, 0xfffffffe);
}
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 02/18] ARM: replace setup_irq() by request_irq()
@ 2020-02-24 0:49 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:49 UTC (permalink / raw)
To: linux-arm-kernel, linux-kernel, linux-omap
Cc: Andrew Lunn, Enrico Weigelt, Jason Cooper, Arnd Bergmann,
Kevin Hilman, Tony Lindgren, Viresh Kumar, Gregory Clement,
Aaro Koskinen, Russell King, Hartley Sweeten, Lubomir Rintel,
Krzysztof Halasa, Greg Kroah-Hartman, Thomas Gleixner,
Alexander Sverdlin, Shiraz Hashim, Allison Randal,
Sebastian Hesselbarth
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/arm/mach-cns3xxx/core.c | 10 +++-------
arch/arm/mach-ebsa110/core.c | 10 +++-------
arch/arm/mach-ep93xx/timer-ep93xx.c | 12 ++++--------
| 11 +++--------
| 8 ++------
| 11 +++--------
arch/arm/mach-iop32x/time.c | 12 ++++--------
arch/arm/mach-mmp/time.c | 11 +++--------
arch/arm/mach-omap1/pm.c | 22 +++++++++++++---------
arch/arm/mach-omap1/time.c | 10 +++-------
arch/arm/mach-omap1/timer32k.c | 10 +++-------
arch/arm/mach-omap2/timer.c | 11 +++--------
arch/arm/mach-rpc/time.c | 8 ++------
arch/arm/mach-spear/time.c | 9 ++-------
arch/arm/plat-orion/time.c | 10 +++-------
15 files changed, 54 insertions(+), 111 deletions(-)
diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
index 1d61a7701c11..711d88b64f2e 100644
--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -189,12 +189,6 @@ static irqreturn_t cns3xxx_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction cns3xxx_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = cns3xxx_timer_interrupt,
-};
-
/*
* Set up the clock source and clock events devices
*/
@@ -245,7 +239,9 @@ static void __init __cns3xxx_timer_init(unsigned int timer_irq)
writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
/* Make irqs happen for the system timer */
- setup_irq(timer_irq, &cns3xxx_timer_irq);
+ if (request_irq(timer_irq, cns3xxx_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
cns3xxx_clockevents_init(timer_irq);
}
diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
index da2ff4f61d6b..dfe6da30a3e0 100644
--- a/arch/arm/mach-ebsa110/core.c
+++ b/arch/arm/mach-ebsa110/core.c
@@ -201,12 +201,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ebsa110_timer_irq = {
- .name = "EBSA110 Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ebsa110_timer_interrupt,
-};
-
/*
* Set up timer interrupt.
*/
@@ -221,7 +215,9 @@ void __init ebsa110_timer_init(void)
__raw_writeb(COUNT & 0xff, PIT_T1);
__raw_writeb(COUNT >> 8, PIT_T1);
- setup_irq(IRQ_EBSA110_TIMER0, &ebsa110_timer_irq);
+ if (request_irq(IRQ_EBSA110_TIMER0, ebsa110_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "EBSA110 Timer Tick", NULL))
+ pr_err("%s: request_irq() failed\n", "EBSA110 Timer Tick");
}
static struct plat_serial8250_port serial_platform_data[] = {
diff --git a/arch/arm/mach-ep93xx/timer-ep93xx.c b/arch/arm/mach-ep93xx/timer-ep93xx.c
index de998830f534..01f7e2b0b9fe 100644
--- a/arch/arm/mach-ep93xx/timer-ep93xx.c
+++ b/arch/arm/mach-ep93xx/timer-ep93xx.c
@@ -117,13 +117,6 @@ static irqreturn_t ep93xx_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ep93xx_timer_irq = {
- .name = "ep93xx timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ep93xx_timer_interrupt,
- .dev_id = &ep93xx_clockevent,
-};
-
void __init ep93xx_timer_init(void)
{
/* Enable and register clocksource and sched_clock on timer 4 */
@@ -136,7 +129,10 @@ void __init ep93xx_timer_init(void)
EP93XX_TIMER4_RATE);
/* Set up clockevent on timer 3 */
- setup_irq(IRQ_EP93XX_TIMER3, &ep93xx_timer_irq);
+ if (request_irq(IRQ_EP93XX_TIMER3, ep93xx_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "ep93xx timer",
+ &ep93xx_clockevent))
+ pr_err("%s: request_irq() failed\n", "ep93xx timer");
clockevents_config_and_register(&ep93xx_clockevent,
EP93XX_TIMER123_RATE,
1,
--git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c
index f76212d2dbf1..ce70931037c0 100644
--- a/arch/arm/mach-footbridge/dc21285-timer.c
+++ b/arch/arm/mach-footbridge/dc21285-timer.c
@@ -101,13 +101,6 @@ static irqreturn_t timer1_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction footbridge_timer_irq = {
- .name = "dc21285_timer1",
- .handler = timer1_interrupt,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .dev_id = &ckevt_dc21285,
-};
-
/*
* Set up timer interrupt.
*/
@@ -118,7 +111,9 @@ void __init footbridge_timer_init(void)
clocksource_register_hz(&cksrc_dc21285, rate);
- setup_irq(ce->irq, &footbridge_timer_irq);
+ if (request_irq(ce->irq, timer1_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "dc21285_timer1", &ckevt_dc21285))
+ pr_err("%s: request_irq() failed\n", "dc21285_timer1");
ce->cpumask = cpumask_of(smp_processor_id());
clockevents_config_and_register(ce, rate, 0x4, 0xffffff);
--git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
index 88a553932c33..a259d5d8eb20 100644
--- a/arch/arm/mach-footbridge/isa-irq.c
+++ b/arch/arm/mach-footbridge/isa-irq.c
@@ -96,11 +96,6 @@ static void isa_irq_handler(struct irq_desc *desc)
generic_handle_irq(isa_irq);
}
-static struct irqaction irq_cascade = {
- .handler = no_action,
- .name = "cascade",
-};
-
static struct resource pic1_resource = {
.name = "pic1",
.start = 0x20,
@@ -160,7 +155,8 @@ void __init isa_init_irq(unsigned int host_irq)
request_resource(&ioport_resource, &pic1_resource);
request_resource(&ioport_resource, &pic2_resource);
- setup_irq(IRQ_ISA_CASCADE, &irq_cascade);
+ if (request_irq(IRQ_ISA_CASCADE, no_action, 0, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
irq_set_chained_handler(host_irq, isa_irq_handler);
--git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c
index 82f45591fb2c..6c7c6ea03804 100644
--- a/arch/arm/mach-footbridge/isa-timer.c
+++ b/arch/arm/mach-footbridge/isa-timer.c
@@ -25,17 +25,12 @@ static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction pit_timer_irq = {
- .name = "pit",
- .handler = pit_timer_interrupt,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .dev_id = &i8253_clockevent,
-};
-
void __init isa_timer_init(void)
{
clocksource_i8253_init();
- setup_irq(i8253_clockevent.irq, &pit_timer_irq);
+ if (request_irq(i8253_clockevent.irq, pit_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "pit", &i8253_clockevent))
+ pr_err("%s: request_irq() failed\n", "pit");
clockevent_i8253_init(false);
}
diff --git a/arch/arm/mach-iop32x/time.c b/arch/arm/mach-iop32x/time.c
index 18a4df5c1baa..422e298366bd 100644
--- a/arch/arm/mach-iop32x/time.c
+++ b/arch/arm/mach-iop32x/time.c
@@ -137,13 +137,6 @@ iop_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction iop_timer_irq = {
- .name = "IOP Timer Tick",
- .handler = iop_timer_interrupt,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .dev_id = &iop_clockevent,
-};
-
static unsigned long iop_tick_rate;
unsigned long get_iop_tick_rate(void)
{
@@ -168,7 +161,10 @@ void __init iop_init_time(unsigned long tick_rate)
*/
write_tmr0(timer_ctl & ~IOP_TMR_EN);
write_tisr(1);
- setup_irq(IRQ_IOP32X_TIMER0, &iop_timer_irq);
+ if (request_irq(IRQ_IOP32X_TIMER0, iop_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "IOP Timer Tick",
+ &iop_clockevent))
+ pr_err("%s: request_irq() failed\n", "IOP Timer Tick");
iop_clockevent.cpumask = cpumask_of(0);
clockevents_config_and_register(&iop_clockevent, tick_rate,
0xf, 0xfffffffe);
diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
index c65cfc1ad99b..83af1db45c15 100644
--- a/arch/arm/mach-mmp/time.c
+++ b/arch/arm/mach-mmp/time.c
@@ -175,13 +175,6 @@ static void __init timer_config(void)
__raw_writel(0x2, mmp_timer_base + TMR_CER);
}
-static struct irqaction timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = timer_interrupt,
- .dev_id = &ckevt,
-};
-
void __init mmp_timer_init(int irq, unsigned long rate)
{
timer_config();
@@ -190,7 +183,9 @@ void __init mmp_timer_init(int irq, unsigned long rate)
ckevt.cpumask = cpumask_of(0);
- setup_irq(irq, &timer_irq);
+ if (request_irq(irq, timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &ckevt))
+ pr_err("%s: request_irq() failed\n", "timer");
clocksource_register_hz(&cksrc, rate);
clockevents_config_and_register(&ckevt, rate, MIN_DELTA, MAX_DELTA);
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index d068958d6f8a..a82e220783d1 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -596,11 +596,6 @@ static irqreturn_t omap_wakeup_interrupt(int irq, void *dev)
return IRQ_HANDLED;
}
-static struct irqaction omap_wakeup_irq = {
- .name = "peripheral wakeup",
- .handler = omap_wakeup_interrupt
-};
-
static const struct platform_suspend_ops omap_pm_ops = {
@@ -655,10 +650,19 @@ static int __init omap_pm_init(void)
arm_pm_idle = omap1_pm_idle;
- if (cpu_is_omap7xx())
- setup_irq(INT_7XX_WAKE_UP_REQ, &omap_wakeup_irq);
- else if (cpu_is_omap16xx())
- setup_irq(INT_1610_WAKE_UP_REQ, &omap_wakeup_irq);
+ if (cpu_is_omap7xx()) {
+ if (request_irq(INT_7XX_WAKE_UP_REQ, omap_wakeup_interrupt, 0,
+ "peripheral wakeup", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "peripheral wakeup");
+ }
+ } else if (cpu_is_omap16xx()) {
+ if (request_irq(INT_1610_WAKE_UP_REQ, omap_wakeup_interrupt, 0,
+ "peripheral wakeup", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "peripheral wakeup");
+ }
+ }
/* Program new power ramp-up time
* (0 for most boards since we don't lower voltage when in deep sleep)
diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
index 524977a31a49..2bd6c4dc6c1f 100644
--- a/arch/arm/mach-omap1/time.c
+++ b/arch/arm/mach-omap1/time.c
@@ -155,15 +155,11 @@ static irqreturn_t omap_mpu_timer1_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction omap_mpu_timer1_irq = {
- .name = "mpu_timer1",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = omap_mpu_timer1_interrupt,
-};
-
static __init void omap_init_mpu_timer(unsigned long rate)
{
- setup_irq(INT_TIMER1, &omap_mpu_timer1_irq);
+ if (request_irq(INT_TIMER1, omap_mpu_timer1_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "mpu_timer1", NULL))
+ pr_err("%s: request_irq() failed\n", "mpu_timer1");
omap_mpu_timer_start(0, (rate / HZ) - 1, 1);
clockevent_mpu_timer1.cpumask = cpumask_of(0);
diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
index 0ae6c52a7d70..1435faca19d8 100644
--- a/arch/arm/mach-omap1/timer32k.c
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -148,15 +148,11 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction omap_32k_timer_irq = {
- .name = "32KHz timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = omap_32k_timer_interrupt,
-};
-
static __init void omap_init_32k_timer(void)
{
- setup_irq(INT_OS_TIMER, &omap_32k_timer_irq);
+ if (request_irq(INT_OS_TIMER, omap_32k_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "32KHz timer", NULL))
+ pr_err("%s: request_irq() failed\n", "32KHz timer");
clockevent_32k_timer.cpumask = cpumask_of(0);
clockevents_config_and_register(&clockevent_32k_timer,
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 0d0a731cb476..7cf91f42dbd1 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -91,12 +91,6 @@ static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction omap2_gp_timer_irq = {
- .name = "gp_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = omap2_gp_timer_interrupt,
-};
-
static int omap2_gp_timer_set_next_event(unsigned long cycles,
struct clock_event_device *evt)
{
@@ -382,8 +376,9 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
&clockevent_gpt.name, OMAP_TIMER_POSTED);
BUG_ON(res);
- omap2_gp_timer_irq.dev_id = &clkev;
- setup_irq(clkev.irq, &omap2_gp_timer_irq);
+ if (request_irq(clkev.irq, omap2_gp_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "gp_timer", &clkev))
+ pr_err("%s: request_irq() failed\n", "gp_timer");
__omap_dm_timer_int_enable(&clkev, OMAP_TIMER_INT_OVERFLOW);
diff --git a/arch/arm/mach-rpc/time.c b/arch/arm/mach-rpc/time.c
index 1d750152b160..3b7d3baa8ac1 100644
--- a/arch/arm/mach-rpc/time.c
+++ b/arch/arm/mach-rpc/time.c
@@ -85,11 +85,6 @@ ioc_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ioc_timer_irq = {
- .name = "timer",
- .handler = ioc_timer_interrupt
-};
-
/*
* Set up timer interrupt.
*/
@@ -97,5 +92,6 @@ void __init ioc_timer_init(void)
{
WARN_ON(clocksource_register_hz(&ioctime_clocksource, RPC_CLOCK_FREQ));
ioctime_init();
- setup_irq(IRQ_TIMER0, &ioc_timer_irq);
+ if (request_irq(IRQ_TIMER0, ioc_timer_interrupt, 0, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
}
diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c
index 289e036c9c30..b69acc04db4a 100644
--- a/arch/arm/mach-spear/time.c
+++ b/arch/arm/mach-spear/time.c
@@ -181,12 +181,6 @@ static irqreturn_t spear_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction spear_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER,
- .handler = spear_timer_interrupt
-};
-
static void __init spear_clockevent_init(int irq)
{
u32 tick_rate;
@@ -201,7 +195,8 @@ static void __init spear_clockevent_init(int irq)
clockevents_config_and_register(&clkevt, tick_rate, 3, 0xfff0);
- setup_irq(irq, &spear_timer_irq);
+ if (request_irq(irq, spear_timer_interrupt, IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
}
static const struct of_device_id timer_of_match[] __initconst = {
diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
index ffb93db68e9c..0a1faa95ecff 100644
--- a/arch/arm/plat-orion/time.c
+++ b/arch/arm/plat-orion/time.c
@@ -177,12 +177,6 @@ static irqreturn_t orion_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction orion_timer_irq = {
- .name = "orion_tick",
- .flags = IRQF_TIMER,
- .handler = orion_timer_interrupt
-};
-
void __init
orion_time_set_base(void __iomem *_timer_base)
{
@@ -236,7 +230,9 @@ orion_time_init(void __iomem *_bridge_base, u32 _bridge_timer1_clr_mask,
/*
* Setup clockevent timer (interrupt-driven).
*/
- setup_irq(irq, &orion_timer_irq);
+ if (request_irq(irq, orion_timer_interrupt, IRQF_TIMER, "orion_tick",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "orion_tick");
orion_clkevt.cpumask = cpumask_of(0);
clockevents_config_and_register(&orion_clkevt, tclk, 1, 0xfffffffe);
}
--
2.25.1
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^ permalink raw reply related [flat|nested] 78+ messages in thread* Re: [PATCH v2 02/18] ARM: replace setup_irq() by request_irq()
2020-02-24 0:49 ` afzal mohammed
@ 2020-02-24 10:13 ` Lubomir Rintel
-1 siblings, 0 replies; 78+ messages in thread
From: Lubomir Rintel @ 2020-02-24 10:13 UTC (permalink / raw)
To: afzal mohammed
Cc: linux-arm-kernel, linux-kernel, linux-omap, Krzysztof Halasa,
Russell King, Hartley Sweeten, Alexander Sverdlin, Kevin Hilman,
Aaro Koskinen, Tony Lindgren, Viresh Kumar, Shiraz Hashim,
Jason Cooper, Andrew Lunn, Sebastian Hesselbarth,
Gregory Clement, Allison Randal, Greg Kroah-Hartman,
Thomas Gleixner, Arnd Bergmann, Enrico Weigelt
On Mon, Feb 24, 2020 at 06:19:04AM +0530, afzal mohammed wrote:
> request_irq() is preferred over setup_irq(). The early boot setup_irq()
> invocations happen either via 'init_IRQ()' or 'time_init()', while
> memory allocators are ready by 'mm_init()'.
>
> Per tglx[1], setup_irq() existed in olden days when allocators were not
> ready by the time early interrupts were initialized.
>
> Hence replace setup_irq() by request_irq().
>
> Seldom remove_irq() usage has been observed coupled with setup_irq(),
> wherever that has been found, it too has been replaced by free_irq().
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
> Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
> ---
>
> v2:
> * Replace pr_err("request_irq() on %s failed" by
> pr_err("%s: request_irq() failed"
> * Commit message massage
>
> arch/arm/mach-cns3xxx/core.c | 10 +++-------
> arch/arm/mach-ebsa110/core.c | 10 +++-------
> arch/arm/mach-ep93xx/timer-ep93xx.c | 12 ++++--------
> arch/arm/mach-footbridge/dc21285-timer.c | 11 +++--------
> arch/arm/mach-footbridge/isa-irq.c | 8 ++------
> arch/arm/mach-footbridge/isa-timer.c | 11 +++--------
> arch/arm/mach-iop32x/time.c | 12 ++++--------
> arch/arm/mach-mmp/time.c | 11 +++--------
Tested-by: Lubomir Rintel <lkundrak@v3.sk> (mmp)
Thanks,
Lubo
> arch/arm/mach-omap1/pm.c | 22 +++++++++++++---------
> arch/arm/mach-omap1/time.c | 10 +++-------
> arch/arm/mach-omap1/timer32k.c | 10 +++-------
> arch/arm/mach-omap2/timer.c | 11 +++--------
> arch/arm/mach-rpc/time.c | 8 ++------
> arch/arm/mach-spear/time.c | 9 ++-------
> arch/arm/plat-orion/time.c | 10 +++-------
> 15 files changed, 54 insertions(+), 111 deletions(-)
>
> diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
> index 1d61a7701c11..711d88b64f2e 100644
> --- a/arch/arm/mach-cns3xxx/core.c
> +++ b/arch/arm/mach-cns3xxx/core.c
> @@ -189,12 +189,6 @@ static irqreturn_t cns3xxx_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction cns3xxx_timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = cns3xxx_timer_interrupt,
> -};
> -
> /*
> * Set up the clock source and clock events devices
> */
> @@ -245,7 +239,9 @@ static void __init __cns3xxx_timer_init(unsigned int timer_irq)
> writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
>
> /* Make irqs happen for the system timer */
> - setup_irq(timer_irq, &cns3xxx_timer_irq);
> + if (request_irq(timer_irq, cns3xxx_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
>
> cns3xxx_clockevents_init(timer_irq);
> }
> diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
> index da2ff4f61d6b..dfe6da30a3e0 100644
> --- a/arch/arm/mach-ebsa110/core.c
> +++ b/arch/arm/mach-ebsa110/core.c
> @@ -201,12 +201,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction ebsa110_timer_irq = {
> - .name = "EBSA110 Timer Tick",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = ebsa110_timer_interrupt,
> -};
> -
> /*
> * Set up timer interrupt.
> */
> @@ -221,7 +215,9 @@ void __init ebsa110_timer_init(void)
> __raw_writeb(COUNT & 0xff, PIT_T1);
> __raw_writeb(COUNT >> 8, PIT_T1);
>
> - setup_irq(IRQ_EBSA110_TIMER0, &ebsa110_timer_irq);
> + if (request_irq(IRQ_EBSA110_TIMER0, ebsa110_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "EBSA110 Timer Tick", NULL))
> + pr_err("%s: request_irq() failed\n", "EBSA110 Timer Tick");
> }
>
> static struct plat_serial8250_port serial_platform_data[] = {
> diff --git a/arch/arm/mach-ep93xx/timer-ep93xx.c b/arch/arm/mach-ep93xx/timer-ep93xx.c
> index de998830f534..01f7e2b0b9fe 100644
> --- a/arch/arm/mach-ep93xx/timer-ep93xx.c
> +++ b/arch/arm/mach-ep93xx/timer-ep93xx.c
> @@ -117,13 +117,6 @@ static irqreturn_t ep93xx_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction ep93xx_timer_irq = {
> - .name = "ep93xx timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = ep93xx_timer_interrupt,
> - .dev_id = &ep93xx_clockevent,
> -};
> -
> void __init ep93xx_timer_init(void)
> {
> /* Enable and register clocksource and sched_clock on timer 4 */
> @@ -136,7 +129,10 @@ void __init ep93xx_timer_init(void)
> EP93XX_TIMER4_RATE);
>
> /* Set up clockevent on timer 3 */
> - setup_irq(IRQ_EP93XX_TIMER3, &ep93xx_timer_irq);
> + if (request_irq(IRQ_EP93XX_TIMER3, ep93xx_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "ep93xx timer",
> + &ep93xx_clockevent))
> + pr_err("%s: request_irq() failed\n", "ep93xx timer");
> clockevents_config_and_register(&ep93xx_clockevent,
> EP93XX_TIMER123_RATE,
> 1,
> diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c
> index f76212d2dbf1..ce70931037c0 100644
> --- a/arch/arm/mach-footbridge/dc21285-timer.c
> +++ b/arch/arm/mach-footbridge/dc21285-timer.c
> @@ -101,13 +101,6 @@ static irqreturn_t timer1_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction footbridge_timer_irq = {
> - .name = "dc21285_timer1",
> - .handler = timer1_interrupt,
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .dev_id = &ckevt_dc21285,
> -};
> -
> /*
> * Set up timer interrupt.
> */
> @@ -118,7 +111,9 @@ void __init footbridge_timer_init(void)
>
> clocksource_register_hz(&cksrc_dc21285, rate);
>
> - setup_irq(ce->irq, &footbridge_timer_irq);
> + if (request_irq(ce->irq, timer1_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
> + "dc21285_timer1", &ckevt_dc21285))
> + pr_err("%s: request_irq() failed\n", "dc21285_timer1");
>
> ce->cpumask = cpumask_of(smp_processor_id());
> clockevents_config_and_register(ce, rate, 0x4, 0xffffff);
> diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
> index 88a553932c33..a259d5d8eb20 100644
> --- a/arch/arm/mach-footbridge/isa-irq.c
> +++ b/arch/arm/mach-footbridge/isa-irq.c
> @@ -96,11 +96,6 @@ static void isa_irq_handler(struct irq_desc *desc)
> generic_handle_irq(isa_irq);
> }
>
> -static struct irqaction irq_cascade = {
> - .handler = no_action,
> - .name = "cascade",
> -};
> -
> static struct resource pic1_resource = {
> .name = "pic1",
> .start = 0x20,
> @@ -160,7 +155,8 @@ void __init isa_init_irq(unsigned int host_irq)
>
> request_resource(&ioport_resource, &pic1_resource);
> request_resource(&ioport_resource, &pic2_resource);
> - setup_irq(IRQ_ISA_CASCADE, &irq_cascade);
> + if (request_irq(IRQ_ISA_CASCADE, no_action, 0, "cascade", NULL))
> + pr_err("%s: request_irq() failed\n", "cascade");
>
> irq_set_chained_handler(host_irq, isa_irq_handler);
>
> diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c
> index 82f45591fb2c..6c7c6ea03804 100644
> --- a/arch/arm/mach-footbridge/isa-timer.c
> +++ b/arch/arm/mach-footbridge/isa-timer.c
> @@ -25,17 +25,12 @@ static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction pit_timer_irq = {
> - .name = "pit",
> - .handler = pit_timer_interrupt,
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .dev_id = &i8253_clockevent,
> -};
> -
> void __init isa_timer_init(void)
> {
> clocksource_i8253_init();
>
> - setup_irq(i8253_clockevent.irq, &pit_timer_irq);
> + if (request_irq(i8253_clockevent.irq, pit_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "pit", &i8253_clockevent))
> + pr_err("%s: request_irq() failed\n", "pit");
> clockevent_i8253_init(false);
> }
> diff --git a/arch/arm/mach-iop32x/time.c b/arch/arm/mach-iop32x/time.c
> index 18a4df5c1baa..422e298366bd 100644
> --- a/arch/arm/mach-iop32x/time.c
> +++ b/arch/arm/mach-iop32x/time.c
> @@ -137,13 +137,6 @@ iop_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction iop_timer_irq = {
> - .name = "IOP Timer Tick",
> - .handler = iop_timer_interrupt,
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .dev_id = &iop_clockevent,
> -};
> -
> static unsigned long iop_tick_rate;
> unsigned long get_iop_tick_rate(void)
> {
> @@ -168,7 +161,10 @@ void __init iop_init_time(unsigned long tick_rate)
> */
> write_tmr0(timer_ctl & ~IOP_TMR_EN);
> write_tisr(1);
> - setup_irq(IRQ_IOP32X_TIMER0, &iop_timer_irq);
> + if (request_irq(IRQ_IOP32X_TIMER0, iop_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "IOP Timer Tick",
> + &iop_clockevent))
> + pr_err("%s: request_irq() failed\n", "IOP Timer Tick");
> iop_clockevent.cpumask = cpumask_of(0);
> clockevents_config_and_register(&iop_clockevent, tick_rate,
> 0xf, 0xfffffffe);
> diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
> index c65cfc1ad99b..83af1db45c15 100644
> --- a/arch/arm/mach-mmp/time.c
> +++ b/arch/arm/mach-mmp/time.c
> @@ -175,13 +175,6 @@ static void __init timer_config(void)
> __raw_writel(0x2, mmp_timer_base + TMR_CER);
> }
>
> -static struct irqaction timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = timer_interrupt,
> - .dev_id = &ckevt,
> -};
> -
> void __init mmp_timer_init(int irq, unsigned long rate)
> {
> timer_config();
> @@ -190,7 +183,9 @@ void __init mmp_timer_init(int irq, unsigned long rate)
>
> ckevt.cpumask = cpumask_of(0);
>
> - setup_irq(irq, &timer_irq);
> + if (request_irq(irq, timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
> + "timer", &ckevt))
> + pr_err("%s: request_irq() failed\n", "timer");
>
> clocksource_register_hz(&cksrc, rate);
> clockevents_config_and_register(&ckevt, rate, MIN_DELTA, MAX_DELTA);
> diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
> index d068958d6f8a..a82e220783d1 100644
> --- a/arch/arm/mach-omap1/pm.c
> +++ b/arch/arm/mach-omap1/pm.c
> @@ -596,11 +596,6 @@ static irqreturn_t omap_wakeup_interrupt(int irq, void *dev)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction omap_wakeup_irq = {
> - .name = "peripheral wakeup",
> - .handler = omap_wakeup_interrupt
> -};
> -
>
>
> static const struct platform_suspend_ops omap_pm_ops = {
> @@ -655,10 +650,19 @@ static int __init omap_pm_init(void)
>
> arm_pm_idle = omap1_pm_idle;
>
> - if (cpu_is_omap7xx())
> - setup_irq(INT_7XX_WAKE_UP_REQ, &omap_wakeup_irq);
> - else if (cpu_is_omap16xx())
> - setup_irq(INT_1610_WAKE_UP_REQ, &omap_wakeup_irq);
> + if (cpu_is_omap7xx()) {
> + if (request_irq(INT_7XX_WAKE_UP_REQ, omap_wakeup_interrupt, 0,
> + "peripheral wakeup", NULL)) {
> + pr_err("%s: request_irq() failed\n",
> + "peripheral wakeup");
> + }
> + } else if (cpu_is_omap16xx()) {
> + if (request_irq(INT_1610_WAKE_UP_REQ, omap_wakeup_interrupt, 0,
> + "peripheral wakeup", NULL)) {
> + pr_err("%s: request_irq() failed\n",
> + "peripheral wakeup");
> + }
> + }
>
> /* Program new power ramp-up time
> * (0 for most boards since we don't lower voltage when in deep sleep)
> diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
> index 524977a31a49..2bd6c4dc6c1f 100644
> --- a/arch/arm/mach-omap1/time.c
> +++ b/arch/arm/mach-omap1/time.c
> @@ -155,15 +155,11 @@ static irqreturn_t omap_mpu_timer1_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction omap_mpu_timer1_irq = {
> - .name = "mpu_timer1",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = omap_mpu_timer1_interrupt,
> -};
> -
> static __init void omap_init_mpu_timer(unsigned long rate)
> {
> - setup_irq(INT_TIMER1, &omap_mpu_timer1_irq);
> + if (request_irq(INT_TIMER1, omap_mpu_timer1_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "mpu_timer1", NULL))
> + pr_err("%s: request_irq() failed\n", "mpu_timer1");
> omap_mpu_timer_start(0, (rate / HZ) - 1, 1);
>
> clockevent_mpu_timer1.cpumask = cpumask_of(0);
> diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
> index 0ae6c52a7d70..1435faca19d8 100644
> --- a/arch/arm/mach-omap1/timer32k.c
> +++ b/arch/arm/mach-omap1/timer32k.c
> @@ -148,15 +148,11 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction omap_32k_timer_irq = {
> - .name = "32KHz timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = omap_32k_timer_interrupt,
> -};
> -
> static __init void omap_init_32k_timer(void)
> {
> - setup_irq(INT_OS_TIMER, &omap_32k_timer_irq);
> + if (request_irq(INT_OS_TIMER, omap_32k_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "32KHz timer", NULL))
> + pr_err("%s: request_irq() failed\n", "32KHz timer");
>
> clockevent_32k_timer.cpumask = cpumask_of(0);
> clockevents_config_and_register(&clockevent_32k_timer,
> diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
> index 0d0a731cb476..7cf91f42dbd1 100644
> --- a/arch/arm/mach-omap2/timer.c
> +++ b/arch/arm/mach-omap2/timer.c
> @@ -91,12 +91,6 @@ static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction omap2_gp_timer_irq = {
> - .name = "gp_timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = omap2_gp_timer_interrupt,
> -};
> -
> static int omap2_gp_timer_set_next_event(unsigned long cycles,
> struct clock_event_device *evt)
> {
> @@ -382,8 +376,9 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
> &clockevent_gpt.name, OMAP_TIMER_POSTED);
> BUG_ON(res);
>
> - omap2_gp_timer_irq.dev_id = &clkev;
> - setup_irq(clkev.irq, &omap2_gp_timer_irq);
> + if (request_irq(clkev.irq, omap2_gp_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "gp_timer", &clkev))
> + pr_err("%s: request_irq() failed\n", "gp_timer");
>
> __omap_dm_timer_int_enable(&clkev, OMAP_TIMER_INT_OVERFLOW);
>
> diff --git a/arch/arm/mach-rpc/time.c b/arch/arm/mach-rpc/time.c
> index 1d750152b160..3b7d3baa8ac1 100644
> --- a/arch/arm/mach-rpc/time.c
> +++ b/arch/arm/mach-rpc/time.c
> @@ -85,11 +85,6 @@ ioc_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction ioc_timer_irq = {
> - .name = "timer",
> - .handler = ioc_timer_interrupt
> -};
> -
> /*
> * Set up timer interrupt.
> */
> @@ -97,5 +92,6 @@ void __init ioc_timer_init(void)
> {
> WARN_ON(clocksource_register_hz(&ioctime_clocksource, RPC_CLOCK_FREQ));
> ioctime_init();
> - setup_irq(IRQ_TIMER0, &ioc_timer_irq);
> + if (request_irq(IRQ_TIMER0, ioc_timer_interrupt, 0, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
> }
> diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c
> index 289e036c9c30..b69acc04db4a 100644
> --- a/arch/arm/mach-spear/time.c
> +++ b/arch/arm/mach-spear/time.c
> @@ -181,12 +181,6 @@ static irqreturn_t spear_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction spear_timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER,
> - .handler = spear_timer_interrupt
> -};
> -
> static void __init spear_clockevent_init(int irq)
> {
> u32 tick_rate;
> @@ -201,7 +195,8 @@ static void __init spear_clockevent_init(int irq)
>
> clockevents_config_and_register(&clkevt, tick_rate, 3, 0xfff0);
>
> - setup_irq(irq, &spear_timer_irq);
> + if (request_irq(irq, spear_timer_interrupt, IRQF_TIMER, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
> }
>
> static const struct of_device_id timer_of_match[] __initconst = {
> diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
> index ffb93db68e9c..0a1faa95ecff 100644
> --- a/arch/arm/plat-orion/time.c
> +++ b/arch/arm/plat-orion/time.c
> @@ -177,12 +177,6 @@ static irqreturn_t orion_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction orion_timer_irq = {
> - .name = "orion_tick",
> - .flags = IRQF_TIMER,
> - .handler = orion_timer_interrupt
> -};
> -
> void __init
> orion_time_set_base(void __iomem *_timer_base)
> {
> @@ -236,7 +230,9 @@ orion_time_init(void __iomem *_bridge_base, u32 _bridge_timer1_clr_mask,
> /*
> * Setup clockevent timer (interrupt-driven).
> */
> - setup_irq(irq, &orion_timer_irq);
> + if (request_irq(irq, orion_timer_interrupt, IRQF_TIMER, "orion_tick",
> + NULL))
> + pr_err("%s: request_irq() failed\n", "orion_tick");
> orion_clkevt.cpumask = cpumask_of(0);
> clockevents_config_and_register(&orion_clkevt, tclk, 1, 0xfffffffe);
> }
> --
> 2.25.1
>
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 02/18] ARM: replace setup_irq() by request_irq()
@ 2020-02-24 10:13 ` Lubomir Rintel
0 siblings, 0 replies; 78+ messages in thread
From: Lubomir Rintel @ 2020-02-24 10:13 UTC (permalink / raw)
To: afzal mohammed
Cc: Andrew Lunn, Enrico Weigelt, Jason Cooper, Arnd Bergmann,
Kevin Hilman, Tony Lindgren, Viresh Kumar, Gregory Clement,
Aaro Koskinen, linux-kernel, Russell King, Hartley Sweeten,
Krzysztof Halasa, Allison Randal, Greg Kroah-Hartman,
Thomas Gleixner, linux-omap, Alexander Sverdlin, Shiraz Hashim,
linux-arm-kernel, Sebastian Hesselbarth
On Mon, Feb 24, 2020 at 06:19:04AM +0530, afzal mohammed wrote:
> request_irq() is preferred over setup_irq(). The early boot setup_irq()
> invocations happen either via 'init_IRQ()' or 'time_init()', while
> memory allocators are ready by 'mm_init()'.
>
> Per tglx[1], setup_irq() existed in olden days when allocators were not
> ready by the time early interrupts were initialized.
>
> Hence replace setup_irq() by request_irq().
>
> Seldom remove_irq() usage has been observed coupled with setup_irq(),
> wherever that has been found, it too has been replaced by free_irq().
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
> Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
> ---
>
> v2:
> * Replace pr_err("request_irq() on %s failed" by
> pr_err("%s: request_irq() failed"
> * Commit message massage
>
> arch/arm/mach-cns3xxx/core.c | 10 +++-------
> arch/arm/mach-ebsa110/core.c | 10 +++-------
> arch/arm/mach-ep93xx/timer-ep93xx.c | 12 ++++--------
> arch/arm/mach-footbridge/dc21285-timer.c | 11 +++--------
> arch/arm/mach-footbridge/isa-irq.c | 8 ++------
> arch/arm/mach-footbridge/isa-timer.c | 11 +++--------
> arch/arm/mach-iop32x/time.c | 12 ++++--------
> arch/arm/mach-mmp/time.c | 11 +++--------
Tested-by: Lubomir Rintel <lkundrak@v3.sk> (mmp)
Thanks,
Lubo
> arch/arm/mach-omap1/pm.c | 22 +++++++++++++---------
> arch/arm/mach-omap1/time.c | 10 +++-------
> arch/arm/mach-omap1/timer32k.c | 10 +++-------
> arch/arm/mach-omap2/timer.c | 11 +++--------
> arch/arm/mach-rpc/time.c | 8 ++------
> arch/arm/mach-spear/time.c | 9 ++-------
> arch/arm/plat-orion/time.c | 10 +++-------
> 15 files changed, 54 insertions(+), 111 deletions(-)
>
> diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
> index 1d61a7701c11..711d88b64f2e 100644
> --- a/arch/arm/mach-cns3xxx/core.c
> +++ b/arch/arm/mach-cns3xxx/core.c
> @@ -189,12 +189,6 @@ static irqreturn_t cns3xxx_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction cns3xxx_timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = cns3xxx_timer_interrupt,
> -};
> -
> /*
> * Set up the clock source and clock events devices
> */
> @@ -245,7 +239,9 @@ static void __init __cns3xxx_timer_init(unsigned int timer_irq)
> writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
>
> /* Make irqs happen for the system timer */
> - setup_irq(timer_irq, &cns3xxx_timer_irq);
> + if (request_irq(timer_irq, cns3xxx_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
>
> cns3xxx_clockevents_init(timer_irq);
> }
> diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
> index da2ff4f61d6b..dfe6da30a3e0 100644
> --- a/arch/arm/mach-ebsa110/core.c
> +++ b/arch/arm/mach-ebsa110/core.c
> @@ -201,12 +201,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction ebsa110_timer_irq = {
> - .name = "EBSA110 Timer Tick",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = ebsa110_timer_interrupt,
> -};
> -
> /*
> * Set up timer interrupt.
> */
> @@ -221,7 +215,9 @@ void __init ebsa110_timer_init(void)
> __raw_writeb(COUNT & 0xff, PIT_T1);
> __raw_writeb(COUNT >> 8, PIT_T1);
>
> - setup_irq(IRQ_EBSA110_TIMER0, &ebsa110_timer_irq);
> + if (request_irq(IRQ_EBSA110_TIMER0, ebsa110_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "EBSA110 Timer Tick", NULL))
> + pr_err("%s: request_irq() failed\n", "EBSA110 Timer Tick");
> }
>
> static struct plat_serial8250_port serial_platform_data[] = {
> diff --git a/arch/arm/mach-ep93xx/timer-ep93xx.c b/arch/arm/mach-ep93xx/timer-ep93xx.c
> index de998830f534..01f7e2b0b9fe 100644
> --- a/arch/arm/mach-ep93xx/timer-ep93xx.c
> +++ b/arch/arm/mach-ep93xx/timer-ep93xx.c
> @@ -117,13 +117,6 @@ static irqreturn_t ep93xx_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction ep93xx_timer_irq = {
> - .name = "ep93xx timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = ep93xx_timer_interrupt,
> - .dev_id = &ep93xx_clockevent,
> -};
> -
> void __init ep93xx_timer_init(void)
> {
> /* Enable and register clocksource and sched_clock on timer 4 */
> @@ -136,7 +129,10 @@ void __init ep93xx_timer_init(void)
> EP93XX_TIMER4_RATE);
>
> /* Set up clockevent on timer 3 */
> - setup_irq(IRQ_EP93XX_TIMER3, &ep93xx_timer_irq);
> + if (request_irq(IRQ_EP93XX_TIMER3, ep93xx_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "ep93xx timer",
> + &ep93xx_clockevent))
> + pr_err("%s: request_irq() failed\n", "ep93xx timer");
> clockevents_config_and_register(&ep93xx_clockevent,
> EP93XX_TIMER123_RATE,
> 1,
> diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c
> index f76212d2dbf1..ce70931037c0 100644
> --- a/arch/arm/mach-footbridge/dc21285-timer.c
> +++ b/arch/arm/mach-footbridge/dc21285-timer.c
> @@ -101,13 +101,6 @@ static irqreturn_t timer1_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction footbridge_timer_irq = {
> - .name = "dc21285_timer1",
> - .handler = timer1_interrupt,
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .dev_id = &ckevt_dc21285,
> -};
> -
> /*
> * Set up timer interrupt.
> */
> @@ -118,7 +111,9 @@ void __init footbridge_timer_init(void)
>
> clocksource_register_hz(&cksrc_dc21285, rate);
>
> - setup_irq(ce->irq, &footbridge_timer_irq);
> + if (request_irq(ce->irq, timer1_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
> + "dc21285_timer1", &ckevt_dc21285))
> + pr_err("%s: request_irq() failed\n", "dc21285_timer1");
>
> ce->cpumask = cpumask_of(smp_processor_id());
> clockevents_config_and_register(ce, rate, 0x4, 0xffffff);
> diff --git a/arch/arm/mach-footbridge/isa-irq.c b/arch/arm/mach-footbridge/isa-irq.c
> index 88a553932c33..a259d5d8eb20 100644
> --- a/arch/arm/mach-footbridge/isa-irq.c
> +++ b/arch/arm/mach-footbridge/isa-irq.c
> @@ -96,11 +96,6 @@ static void isa_irq_handler(struct irq_desc *desc)
> generic_handle_irq(isa_irq);
> }
>
> -static struct irqaction irq_cascade = {
> - .handler = no_action,
> - .name = "cascade",
> -};
> -
> static struct resource pic1_resource = {
> .name = "pic1",
> .start = 0x20,
> @@ -160,7 +155,8 @@ void __init isa_init_irq(unsigned int host_irq)
>
> request_resource(&ioport_resource, &pic1_resource);
> request_resource(&ioport_resource, &pic2_resource);
> - setup_irq(IRQ_ISA_CASCADE, &irq_cascade);
> + if (request_irq(IRQ_ISA_CASCADE, no_action, 0, "cascade", NULL))
> + pr_err("%s: request_irq() failed\n", "cascade");
>
> irq_set_chained_handler(host_irq, isa_irq_handler);
>
> diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c
> index 82f45591fb2c..6c7c6ea03804 100644
> --- a/arch/arm/mach-footbridge/isa-timer.c
> +++ b/arch/arm/mach-footbridge/isa-timer.c
> @@ -25,17 +25,12 @@ static irqreturn_t pit_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction pit_timer_irq = {
> - .name = "pit",
> - .handler = pit_timer_interrupt,
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .dev_id = &i8253_clockevent,
> -};
> -
> void __init isa_timer_init(void)
> {
> clocksource_i8253_init();
>
> - setup_irq(i8253_clockevent.irq, &pit_timer_irq);
> + if (request_irq(i8253_clockevent.irq, pit_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "pit", &i8253_clockevent))
> + pr_err("%s: request_irq() failed\n", "pit");
> clockevent_i8253_init(false);
> }
> diff --git a/arch/arm/mach-iop32x/time.c b/arch/arm/mach-iop32x/time.c
> index 18a4df5c1baa..422e298366bd 100644
> --- a/arch/arm/mach-iop32x/time.c
> +++ b/arch/arm/mach-iop32x/time.c
> @@ -137,13 +137,6 @@ iop_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction iop_timer_irq = {
> - .name = "IOP Timer Tick",
> - .handler = iop_timer_interrupt,
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .dev_id = &iop_clockevent,
> -};
> -
> static unsigned long iop_tick_rate;
> unsigned long get_iop_tick_rate(void)
> {
> @@ -168,7 +161,10 @@ void __init iop_init_time(unsigned long tick_rate)
> */
> write_tmr0(timer_ctl & ~IOP_TMR_EN);
> write_tisr(1);
> - setup_irq(IRQ_IOP32X_TIMER0, &iop_timer_irq);
> + if (request_irq(IRQ_IOP32X_TIMER0, iop_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "IOP Timer Tick",
> + &iop_clockevent))
> + pr_err("%s: request_irq() failed\n", "IOP Timer Tick");
> iop_clockevent.cpumask = cpumask_of(0);
> clockevents_config_and_register(&iop_clockevent, tick_rate,
> 0xf, 0xfffffffe);
> diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
> index c65cfc1ad99b..83af1db45c15 100644
> --- a/arch/arm/mach-mmp/time.c
> +++ b/arch/arm/mach-mmp/time.c
> @@ -175,13 +175,6 @@ static void __init timer_config(void)
> __raw_writel(0x2, mmp_timer_base + TMR_CER);
> }
>
> -static struct irqaction timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = timer_interrupt,
> - .dev_id = &ckevt,
> -};
> -
> void __init mmp_timer_init(int irq, unsigned long rate)
> {
> timer_config();
> @@ -190,7 +183,9 @@ void __init mmp_timer_init(int irq, unsigned long rate)
>
> ckevt.cpumask = cpumask_of(0);
>
> - setup_irq(irq, &timer_irq);
> + if (request_irq(irq, timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
> + "timer", &ckevt))
> + pr_err("%s: request_irq() failed\n", "timer");
>
> clocksource_register_hz(&cksrc, rate);
> clockevents_config_and_register(&ckevt, rate, MIN_DELTA, MAX_DELTA);
> diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
> index d068958d6f8a..a82e220783d1 100644
> --- a/arch/arm/mach-omap1/pm.c
> +++ b/arch/arm/mach-omap1/pm.c
> @@ -596,11 +596,6 @@ static irqreturn_t omap_wakeup_interrupt(int irq, void *dev)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction omap_wakeup_irq = {
> - .name = "peripheral wakeup",
> - .handler = omap_wakeup_interrupt
> -};
> -
>
>
> static const struct platform_suspend_ops omap_pm_ops = {
> @@ -655,10 +650,19 @@ static int __init omap_pm_init(void)
>
> arm_pm_idle = omap1_pm_idle;
>
> - if (cpu_is_omap7xx())
> - setup_irq(INT_7XX_WAKE_UP_REQ, &omap_wakeup_irq);
> - else if (cpu_is_omap16xx())
> - setup_irq(INT_1610_WAKE_UP_REQ, &omap_wakeup_irq);
> + if (cpu_is_omap7xx()) {
> + if (request_irq(INT_7XX_WAKE_UP_REQ, omap_wakeup_interrupt, 0,
> + "peripheral wakeup", NULL)) {
> + pr_err("%s: request_irq() failed\n",
> + "peripheral wakeup");
> + }
> + } else if (cpu_is_omap16xx()) {
> + if (request_irq(INT_1610_WAKE_UP_REQ, omap_wakeup_interrupt, 0,
> + "peripheral wakeup", NULL)) {
> + pr_err("%s: request_irq() failed\n",
> + "peripheral wakeup");
> + }
> + }
>
> /* Program new power ramp-up time
> * (0 for most boards since we don't lower voltage when in deep sleep)
> diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
> index 524977a31a49..2bd6c4dc6c1f 100644
> --- a/arch/arm/mach-omap1/time.c
> +++ b/arch/arm/mach-omap1/time.c
> @@ -155,15 +155,11 @@ static irqreturn_t omap_mpu_timer1_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction omap_mpu_timer1_irq = {
> - .name = "mpu_timer1",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = omap_mpu_timer1_interrupt,
> -};
> -
> static __init void omap_init_mpu_timer(unsigned long rate)
> {
> - setup_irq(INT_TIMER1, &omap_mpu_timer1_irq);
> + if (request_irq(INT_TIMER1, omap_mpu_timer1_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "mpu_timer1", NULL))
> + pr_err("%s: request_irq() failed\n", "mpu_timer1");
> omap_mpu_timer_start(0, (rate / HZ) - 1, 1);
>
> clockevent_mpu_timer1.cpumask = cpumask_of(0);
> diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
> index 0ae6c52a7d70..1435faca19d8 100644
> --- a/arch/arm/mach-omap1/timer32k.c
> +++ b/arch/arm/mach-omap1/timer32k.c
> @@ -148,15 +148,11 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction omap_32k_timer_irq = {
> - .name = "32KHz timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = omap_32k_timer_interrupt,
> -};
> -
> static __init void omap_init_32k_timer(void)
> {
> - setup_irq(INT_OS_TIMER, &omap_32k_timer_irq);
> + if (request_irq(INT_OS_TIMER, omap_32k_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "32KHz timer", NULL))
> + pr_err("%s: request_irq() failed\n", "32KHz timer");
>
> clockevent_32k_timer.cpumask = cpumask_of(0);
> clockevents_config_and_register(&clockevent_32k_timer,
> diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
> index 0d0a731cb476..7cf91f42dbd1 100644
> --- a/arch/arm/mach-omap2/timer.c
> +++ b/arch/arm/mach-omap2/timer.c
> @@ -91,12 +91,6 @@ static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction omap2_gp_timer_irq = {
> - .name = "gp_timer",
> - .flags = IRQF_TIMER | IRQF_IRQPOLL,
> - .handler = omap2_gp_timer_interrupt,
> -};
> -
> static int omap2_gp_timer_set_next_event(unsigned long cycles,
> struct clock_event_device *evt)
> {
> @@ -382,8 +376,9 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
> &clockevent_gpt.name, OMAP_TIMER_POSTED);
> BUG_ON(res);
>
> - omap2_gp_timer_irq.dev_id = &clkev;
> - setup_irq(clkev.irq, &omap2_gp_timer_irq);
> + if (request_irq(clkev.irq, omap2_gp_timer_interrupt,
> + IRQF_TIMER | IRQF_IRQPOLL, "gp_timer", &clkev))
> + pr_err("%s: request_irq() failed\n", "gp_timer");
>
> __omap_dm_timer_int_enable(&clkev, OMAP_TIMER_INT_OVERFLOW);
>
> diff --git a/arch/arm/mach-rpc/time.c b/arch/arm/mach-rpc/time.c
> index 1d750152b160..3b7d3baa8ac1 100644
> --- a/arch/arm/mach-rpc/time.c
> +++ b/arch/arm/mach-rpc/time.c
> @@ -85,11 +85,6 @@ ioc_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction ioc_timer_irq = {
> - .name = "timer",
> - .handler = ioc_timer_interrupt
> -};
> -
> /*
> * Set up timer interrupt.
> */
> @@ -97,5 +92,6 @@ void __init ioc_timer_init(void)
> {
> WARN_ON(clocksource_register_hz(&ioctime_clocksource, RPC_CLOCK_FREQ));
> ioctime_init();
> - setup_irq(IRQ_TIMER0, &ioc_timer_irq);
> + if (request_irq(IRQ_TIMER0, ioc_timer_interrupt, 0, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
> }
> diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c
> index 289e036c9c30..b69acc04db4a 100644
> --- a/arch/arm/mach-spear/time.c
> +++ b/arch/arm/mach-spear/time.c
> @@ -181,12 +181,6 @@ static irqreturn_t spear_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction spear_timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER,
> - .handler = spear_timer_interrupt
> -};
> -
> static void __init spear_clockevent_init(int irq)
> {
> u32 tick_rate;
> @@ -201,7 +195,8 @@ static void __init spear_clockevent_init(int irq)
>
> clockevents_config_and_register(&clkevt, tick_rate, 3, 0xfff0);
>
> - setup_irq(irq, &spear_timer_irq);
> + if (request_irq(irq, spear_timer_interrupt, IRQF_TIMER, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
> }
>
> static const struct of_device_id timer_of_match[] __initconst = {
> diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
> index ffb93db68e9c..0a1faa95ecff 100644
> --- a/arch/arm/plat-orion/time.c
> +++ b/arch/arm/plat-orion/time.c
> @@ -177,12 +177,6 @@ static irqreturn_t orion_timer_interrupt(int irq, void *dev_id)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction orion_timer_irq = {
> - .name = "orion_tick",
> - .flags = IRQF_TIMER,
> - .handler = orion_timer_interrupt
> -};
> -
> void __init
> orion_time_set_base(void __iomem *_timer_base)
> {
> @@ -236,7 +230,9 @@ orion_time_init(void __iomem *_bridge_base, u32 _bridge_timer1_clr_mask,
> /*
> * Setup clockevent timer (interrupt-driven).
> */
> - setup_irq(irq, &orion_timer_irq);
> + if (request_irq(irq, orion_timer_interrupt, IRQF_TIMER, "orion_tick",
> + NULL))
> + pr_err("%s: request_irq() failed\n", "orion_tick");
> orion_clkevt.cpumask = cpumask_of(0);
> clockevents_config_and_register(&orion_clkevt, tclk, 1, 0xfffffffe);
> }
> --
> 2.25.1
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 02/18] ARM: replace setup_irq() by request_irq()
2020-02-24 0:49 ` afzal mohammed
@ 2020-02-26 16:31 ` Tony Lindgren
-1 siblings, 0 replies; 78+ messages in thread
From: Tony Lindgren @ 2020-02-26 16:31 UTC (permalink / raw)
To: afzal mohammed
Cc: linux-arm-kernel, linux-kernel, linux-omap, Krzysztof Halasa,
Russell King, Hartley Sweeten, Alexander Sverdlin,
Lubomir Rintel, Kevin Hilman, Aaro Koskinen, Viresh Kumar,
Shiraz Hashim, Jason Cooper, Andrew Lunn, Sebastian Hesselbarth,
Gregory Clement, Allison Randal, Greg Kroah-Hartman,
Thomas Gleixner, Arnd Bergmann, Enrico Weigelt
* afzal mohammed <afzal.mohd.ma@gmail.com> [200224 00:49]:
> request_irq() is preferred over setup_irq(). The early boot setup_irq()
> invocations happen either via 'init_IRQ()' or 'time_init()', while
> memory allocators are ready by 'mm_init()'.
>
> Per tglx[1], setup_irq() existed in olden days when allocators were not
> ready by the time early interrupts were initialized.
>
> Hence replace setup_irq() by request_irq().
>
> Seldom remove_irq() usage has been observed coupled with setup_irq(),
> wherever that has been found, it too has been replaced by free_irq().
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
> Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
Works for me:
Tested-by: Tony Lindgren <tony@atomide.com> # omap1 osk
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 02/18] ARM: replace setup_irq() by request_irq()
@ 2020-02-26 16:31 ` Tony Lindgren
0 siblings, 0 replies; 78+ messages in thread
From: Tony Lindgren @ 2020-02-26 16:31 UTC (permalink / raw)
To: afzal mohammed
Cc: Andrew Lunn, Jason Cooper, Arnd Bergmann, Lubomir Rintel,
Enrico Weigelt, Viresh Kumar, Gregory Clement, Kevin Hilman,
linux-kernel, Russell King, Hartley Sweeten, Krzysztof Halasa,
Allison Randal, Greg Kroah-Hartman, Aaro Koskinen,
Thomas Gleixner, linux-omap, Alexander Sverdlin, Shiraz Hashim,
linux-arm-kernel, Sebastian Hesselbarth
* afzal mohammed <afzal.mohd.ma@gmail.com> [200224 00:49]:
> request_irq() is preferred over setup_irq(). The early boot setup_irq()
> invocations happen either via 'init_IRQ()' or 'time_init()', while
> memory allocators are ready by 'mm_init()'.
>
> Per tglx[1], setup_irq() existed in olden days when allocators were not
> ready by the time early interrupts were initialized.
>
> Hence replace setup_irq() by request_irq().
>
> Seldom remove_irq() usage has been observed coupled with setup_irq(),
> wherever that has been found, it too has been replaced by free_irq().
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
> Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> # EP93xx
Works for me:
Tested-by: Tony Lindgren <tony@atomide.com> # omap1 osk
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 78+ messages in thread
* [PATCH v2 03/18] c6x: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (3 preceding siblings ...)
(?)
@ 2020-02-24 0:49 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:49 UTC (permalink / raw)
To: linux-c6x-dev, linux-kernel
Cc: Mark Salter, Aurelien Jacquiot, Thomas Gleixner, Enrico Weigelt,
Kate Stewart, Allison Randal
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Mark Salter <msalter@redhat.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/c6x/platforms/timer64.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/arch/c6x/platforms/timer64.c b/arch/c6x/platforms/timer64.c
index d98d94303498..0b8c47bc16ce 100644
--- a/arch/c6x/platforms/timer64.c
+++ b/arch/c6x/platforms/timer64.c
@@ -165,13 +165,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction timer_iact = {
- .name = "timer",
- .flags = IRQF_TIMER,
- .handler = timer_interrupt,
- .dev_id = &t64_clockevent_device,
-};
-
void __init timer64_init(void)
{
struct clock_event_device *cd = &t64_clockevent_device;
@@ -238,7 +231,9 @@ void __init timer64_init(void)
cd->cpumask = cpumask_of(smp_processor_id());
clockevents_register_device(cd);
- setup_irq(cd->irq, &timer_iact);
+ if (request_irq(cd->irq, timer_interrupt, IRQF_TIMER, "timer",
+ &t64_clockevent_device))
+ pr_err("%s: request_irq() failed\n", "timer");
out:
of_node_put(np);
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 04/18] hexagon: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (4 preceding siblings ...)
(?)
@ 2020-02-24 0:49 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:49 UTC (permalink / raw)
To: linux-hexagon, linux-kernel
Cc: Brian Cain, Richard Fontana, Greg Kroah-Hartman, Allison Randal,
Thomas Gleixner, Alexios Zavras
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/hexagon/kernel/smp.c | 17 ++++++++---------
arch/hexagon/kernel/time.c | 11 +++--------
2 files changed, 11 insertions(+), 17 deletions(-)
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 0bbbe652a513..67f4b0bff250 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -114,12 +114,6 @@ void send_ipi(const struct cpumask *cpumask, enum ipi_message_type msg)
local_irq_restore(flags);
}
-static struct irqaction ipi_intdesc = {
- .handler = handle_ipi,
- .flags = IRQF_TRIGGER_RISING,
- .name = "ipi_handler"
-};
-
void __init smp_prepare_boot_cpu(void)
{
}
@@ -155,7 +149,9 @@ void start_secondary(void)
cpu = smp_processor_id();
- setup_irq(BASE_IPI_IRQ + cpu, &ipi_intdesc);
+ if (request_irq(BASE_IPI_IRQ + cpu, handle_ipi, IRQF_TRIGGER_RISING,
+ "ipi_handler", NULL))
+ pr_err("%s: request_irq() failed\n", "ipi_handler");
/* Register the clock_event dummy */
setup_percpu_clockdev();
@@ -213,8 +209,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
set_cpu_present(i, true);
/* Also need to register the interrupts for IPI */
- if (max_cpus > 1)
- setup_irq(BASE_IPI_IRQ, &ipi_intdesc);
+ if (max_cpus > 1) {
+ if (request_irq(BASE_IPI_IRQ, handle_ipi, IRQF_TRIGGER_RISING,
+ "ipi_handler", NULL))
+ pr_err("%s: request_irq() failed\n", "ipi_handler");
+ }
}
void smp_send_reschedule(int cpu)
diff --git a/arch/hexagon/kernel/time.c b/arch/hexagon/kernel/time.c
index f99e9257bed4..26550e46cf91 100644
--- a/arch/hexagon/kernel/time.c
+++ b/arch/hexagon/kernel/time.c
@@ -143,13 +143,6 @@ static irqreturn_t timer_interrupt(int irq, void *devid)
return IRQ_HANDLED;
}
-/* This should also be pulled from devtree */
-static struct irqaction rtos_timer_intdesc = {
- .handler = timer_interrupt,
- .flags = IRQF_TIMER | IRQF_TRIGGER_RISING,
- .name = "rtos_timer"
-};
-
/*
* time_init_deferred - called by start_kernel to set up timer/clock source
*
@@ -195,7 +188,9 @@ void __init time_init_deferred(void)
#endif
clockevents_register_device(ce_dev);
- setup_irq(ce_dev->irq, &rtos_timer_intdesc);
+ if (request_irq(ce_dev->irq, timer_interrupt,
+ IRQF_TIMER | IRQF_TRIGGER_RISING, "rtos_timer", NULL))
+ pr_err("%s: request_irq() failed\n", "rtos_timer");
}
void __init time_init(void)
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 05/18] ia64: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
@ 2020-02-24 0:49 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:49 UTC (permalink / raw)
To: linux-ia64, linux-kernel
Cc: Tony Luck, Fenghua Yu, Tom Vaden, Mike Rapoport, Andrew Morton,
Thomas Gleixner, Sebastian Andrzej Siewior
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/ia64/kernel/irq_ia64.c | 42 ++++++++++--------------------
arch/ia64/kernel/mca.c | 51 +++++++++++--------------------------
2 files changed, 29 insertions(+), 64 deletions(-)
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 8e91c86e8072..166a38dae663 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -351,11 +351,6 @@ static irqreturn_t smp_irq_move_cleanup_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq_move_irqaction = {
- .handler = smp_irq_move_cleanup_interrupt,
- .name = "irq_move"
-};
-
static int __init parse_vector_domain(char *arg)
{
if (!arg)
@@ -586,28 +581,15 @@ static irqreturn_t dummy_handler (int irq, void *dev_id)
return IRQ_NONE;
}
-static struct irqaction ipi_irqaction = {
- .handler = handle_IPI,
- .name = "IPI"
-};
-
/*
* KVM uses this interrupt to force a cpu out of guest mode
*/
-static struct irqaction resched_irqaction = {
- .handler = dummy_handler,
- .name = "resched"
-};
-
-static struct irqaction tlb_irqaction = {
- .handler = dummy_handler,
- .name = "tlb_flush"
-};
#endif
void
-ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action)
+ia64_native_register_percpu_irq(ia64_vector vec, const char *name,
+ irq_handler_t handler)
{
unsigned int irq;
@@ -615,8 +597,9 @@ ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action)
BUG_ON(bind_irq_vector(irq, vec, CPU_MASK_ALL));
irq_set_status_flags(irq, IRQ_PER_CPU);
irq_set_chip(irq, &irq_type_ia64_lsapic);
- if (action)
- setup_irq(irq, action);
+ if (handler)
+ if (request_irq(irq, handler, 0, name, NULL))
+ pr_err("request_irq() for %s failed", name);
irq_set_handler(irq, handle_percpu_irq);
}
@@ -624,9 +607,10 @@ void __init
ia64_native_register_ipi(void)
{
#ifdef CONFIG_SMP
- register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction);
- register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction);
- register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction);
+ register_percpu_irq(IA64_IPI_VECTOR, "IPI", handle_IPI);
+ register_percpu_irq(IA64_IPI_RESCHEDULE, "resched", dummy_handler);
+ register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, "tlb_flush",
+ dummy_handler);
#endif
}
@@ -635,10 +619,12 @@ init_IRQ (void)
{
acpi_boot_init();
ia64_register_ipi();
- register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL);
+ register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL, NULL);
#ifdef CONFIG_SMP
- if (vector_domain_type != VECTOR_DOMAIN_NONE)
- register_percpu_irq(IA64_IRQ_MOVE_VECTOR, &irq_move_irqaction);
+ if (vector_domain_type != VECTOR_DOMAIN_NONE) {
+ register_percpu_irq(IA64_IRQ_MOVE_VECTOR, "irq_move",
+ smp_irq_move_cleanup_interrupt);
+ }
#endif
#ifdef CONFIG_PERFMON
pfm_init_percpu();
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index bf2cb9294795..e3d12b376f92 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1766,36 +1766,6 @@ ia64_mca_disable_cpe_polling(char *str)
__setup("disable_cpe_poll", ia64_mca_disable_cpe_polling);
-static struct irqaction cmci_irqaction = {
- .handler = ia64_mca_cmc_int_handler,
- .name = "cmc_hndlr"
-};
-
-static struct irqaction cmcp_irqaction = {
- .handler = ia64_mca_cmc_int_caller,
- .name = "cmc_poll"
-};
-
-static struct irqaction mca_rdzv_irqaction = {
- .handler = ia64_mca_rendez_int_handler,
- .name = "mca_rdzv"
-};
-
-static struct irqaction mca_wkup_irqaction = {
- .handler = ia64_mca_wakeup_int_handler,
- .name = "mca_wkup"
-};
-
-static struct irqaction mca_cpe_irqaction = {
- .handler = ia64_mca_cpe_int_handler,
- .name = "cpe_hndlr"
-};
-
-static struct irqaction mca_cpep_irqaction = {
- .handler = ia64_mca_cpe_int_caller,
- .name = "cpe_poll"
-};
-
/* Minimal format of the MCA/INIT stacks. The pseudo processes that run on
* these stacks can never sleep, they cannot return from the kernel to user
* space, they do not appear in a normal ps listing. So there is no need to
@@ -2056,18 +2026,23 @@ void __init ia64_mca_irq_init(void)
* Configure the CMCI/P vector and handler. Interrupts for CMC are
* per-processor, so AP CMC interrupts are setup in smp_callin() (smpboot.c).
*/
- register_percpu_irq(IA64_CMC_VECTOR, &cmci_irqaction);
- register_percpu_irq(IA64_CMCP_VECTOR, &cmcp_irqaction);
+ register_percpu_irq(IA64_CMC_VECTOR, "cmc_hndlr",
+ ia64_mca_cmc_int_handler);
+ register_percpu_irq(IA64_CMCP_VECTOR, "cmc_poll",
+ ia64_mca_cmc_int_caller);
ia64_mca_cmc_vector_setup(); /* Setup vector on BSP */
/* Setup the MCA rendezvous interrupt vector */
- register_percpu_irq(IA64_MCA_RENDEZ_VECTOR, &mca_rdzv_irqaction);
+ register_percpu_irq(IA64_MCA_RENDEZ_VECTOR, "mca_rdzv",
+ ia64_mca_rendez_int_handler);
/* Setup the MCA wakeup interrupt vector */
- register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, &mca_wkup_irqaction);
+ register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, "mca_wkup",
+ ia64_mca_wakeup_int_handler);
/* Setup the CPEI/P handler */
- register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction);
+ register_percpu_irq(IA64_CPEP_VECTOR, "cpe_poll",
+ ia64_mca_cpe_int_caller);
}
/*
@@ -2108,7 +2083,11 @@ ia64_mca_late_init(void)
if (irq > 0) {
cpe_poll_enabled = 0;
irq_set_status_flags(irq, IRQ_PER_CPU);
- setup_irq(irq, &mca_cpe_irqaction);
+ if (request_irq(irq, ia64_mca_cpe_int_handler,
+ 0, "cpe_hndlr", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "cpe_hndlr");
+ }
ia64_cpe_irq = irq;
ia64_mca_register_cpev(cpe_vector);
IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n",
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 05/18] ia64: replace setup_irq() by request_irq()
@ 2020-02-24 0:49 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:49 UTC (permalink / raw)
To: linux-ia64, linux-kernel
Cc: Tony Luck, Fenghua Yu, Tom Vaden, Mike Rapoport, Andrew Morton,
Thomas Gleixner, Sebastian Andrzej Siewior
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/ia64/kernel/irq_ia64.c | 42 ++++++++++--------------------
arch/ia64/kernel/mca.c | 51 +++++++++++--------------------------
2 files changed, 29 insertions(+), 64 deletions(-)
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 8e91c86e8072..166a38dae663 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -351,11 +351,6 @@ static irqreturn_t smp_irq_move_cleanup_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq_move_irqaction = {
- .handler = smp_irq_move_cleanup_interrupt,
- .name = "irq_move"
-};
-
static int __init parse_vector_domain(char *arg)
{
if (!arg)
@@ -586,28 +581,15 @@ static irqreturn_t dummy_handler (int irq, void *dev_id)
return IRQ_NONE;
}
-static struct irqaction ipi_irqaction = {
- .handler = handle_IPI,
- .name = "IPI"
-};
-
/*
* KVM uses this interrupt to force a cpu out of guest mode
*/
-static struct irqaction resched_irqaction = {
- .handler = dummy_handler,
- .name = "resched"
-};
-
-static struct irqaction tlb_irqaction = {
- .handler = dummy_handler,
- .name = "tlb_flush"
-};
#endif
void
-ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action)
+ia64_native_register_percpu_irq(ia64_vector vec, const char *name,
+ irq_handler_t handler)
{
unsigned int irq;
@@ -615,8 +597,9 @@ ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action)
BUG_ON(bind_irq_vector(irq, vec, CPU_MASK_ALL));
irq_set_status_flags(irq, IRQ_PER_CPU);
irq_set_chip(irq, &irq_type_ia64_lsapic);
- if (action)
- setup_irq(irq, action);
+ if (handler)
+ if (request_irq(irq, handler, 0, name, NULL))
+ pr_err("request_irq() for %s failed", name);
irq_set_handler(irq, handle_percpu_irq);
}
@@ -624,9 +607,10 @@ void __init
ia64_native_register_ipi(void)
{
#ifdef CONFIG_SMP
- register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction);
- register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction);
- register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction);
+ register_percpu_irq(IA64_IPI_VECTOR, "IPI", handle_IPI);
+ register_percpu_irq(IA64_IPI_RESCHEDULE, "resched", dummy_handler);
+ register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, "tlb_flush",
+ dummy_handler);
#endif
}
@@ -635,10 +619,12 @@ init_IRQ (void)
{
acpi_boot_init();
ia64_register_ipi();
- register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL);
+ register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL, NULL);
#ifdef CONFIG_SMP
- if (vector_domain_type != VECTOR_DOMAIN_NONE)
- register_percpu_irq(IA64_IRQ_MOVE_VECTOR, &irq_move_irqaction);
+ if (vector_domain_type != VECTOR_DOMAIN_NONE) {
+ register_percpu_irq(IA64_IRQ_MOVE_VECTOR, "irq_move",
+ smp_irq_move_cleanup_interrupt);
+ }
#endif
#ifdef CONFIG_PERFMON
pfm_init_percpu();
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index bf2cb9294795..e3d12b376f92 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1766,36 +1766,6 @@ ia64_mca_disable_cpe_polling(char *str)
__setup("disable_cpe_poll", ia64_mca_disable_cpe_polling);
-static struct irqaction cmci_irqaction = {
- .handler = ia64_mca_cmc_int_handler,
- .name = "cmc_hndlr"
-};
-
-static struct irqaction cmcp_irqaction = {
- .handler = ia64_mca_cmc_int_caller,
- .name = "cmc_poll"
-};
-
-static struct irqaction mca_rdzv_irqaction = {
- .handler = ia64_mca_rendez_int_handler,
- .name = "mca_rdzv"
-};
-
-static struct irqaction mca_wkup_irqaction = {
- .handler = ia64_mca_wakeup_int_handler,
- .name = "mca_wkup"
-};
-
-static struct irqaction mca_cpe_irqaction = {
- .handler = ia64_mca_cpe_int_handler,
- .name = "cpe_hndlr"
-};
-
-static struct irqaction mca_cpep_irqaction = {
- .handler = ia64_mca_cpe_int_caller,
- .name = "cpe_poll"
-};
-
/* Minimal format of the MCA/INIT stacks. The pseudo processes that run on
* these stacks can never sleep, they cannot return from the kernel to user
* space, they do not appear in a normal ps listing. So there is no need to
@@ -2056,18 +2026,23 @@ void __init ia64_mca_irq_init(void)
* Configure the CMCI/P vector and handler. Interrupts for CMC are
* per-processor, so AP CMC interrupts are setup in smp_callin() (smpboot.c).
*/
- register_percpu_irq(IA64_CMC_VECTOR, &cmci_irqaction);
- register_percpu_irq(IA64_CMCP_VECTOR, &cmcp_irqaction);
+ register_percpu_irq(IA64_CMC_VECTOR, "cmc_hndlr",
+ ia64_mca_cmc_int_handler);
+ register_percpu_irq(IA64_CMCP_VECTOR, "cmc_poll",
+ ia64_mca_cmc_int_caller);
ia64_mca_cmc_vector_setup(); /* Setup vector on BSP */
/* Setup the MCA rendezvous interrupt vector */
- register_percpu_irq(IA64_MCA_RENDEZ_VECTOR, &mca_rdzv_irqaction);
+ register_percpu_irq(IA64_MCA_RENDEZ_VECTOR, "mca_rdzv",
+ ia64_mca_rendez_int_handler);
/* Setup the MCA wakeup interrupt vector */
- register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, &mca_wkup_irqaction);
+ register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, "mca_wkup",
+ ia64_mca_wakeup_int_handler);
/* Setup the CPEI/P handler */
- register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction);
+ register_percpu_irq(IA64_CPEP_VECTOR, "cpe_poll",
+ ia64_mca_cpe_int_caller);
}
/*
@@ -2108,7 +2083,11 @@ ia64_mca_late_init(void)
if (irq > 0) {
cpe_poll_enabled = 0;
irq_set_status_flags(irq, IRQ_PER_CPU);
- setup_irq(irq, &mca_cpe_irqaction);
+ if (request_irq(irq, ia64_mca_cpe_int_handler,
+ 0, "cpe_hndlr", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "cpe_hndlr");
+ }
ia64_cpe_irq = irq;
ia64_mca_register_cpev(cpe_vector);
IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n",
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread
* [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (6 preceding siblings ...)
(?)
@ 2020-02-24 0:50 ` afzal mohammed
2020-02-26 0:42 ` Greg Ungerer
2020-02-29 13:15 ` afzal mohammed
-1 siblings, 2 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:50 UTC (permalink / raw)
To: linux-m68k, linux-kernel
Cc: Greg Ungerer, Thomas Gleixner, Geert Uytterhoeven, Finn Thain
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Greg Ungerer <gerg@linux-m68k.org> # ColdFire
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
* remove now irrelevant comment lines at 3 places
arch/m68k/68000/timers.c | 11 ++---------
arch/m68k/coldfire/pit.c | 11 ++---------
arch/m68k/coldfire/sltimers.c | 19 +++++--------------
arch/m68k/coldfire/timers.c | 21 +++++----------------
4 files changed, 14 insertions(+), 48 deletions(-)
diff --git a/arch/m68k/68000/timers.c b/arch/m68k/68000/timers.c
index 71ddb4c98726..55a76a2d3d58 100644
--- a/arch/m68k/68000/timers.c
+++ b/arch/m68k/68000/timers.c
@@ -68,14 +68,6 @@ static irqreturn_t hw_tick(int irq, void *dummy)
/***************************************************************************/
-static struct irqaction m68328_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER,
- .handler = hw_tick,
-};
-
-/***************************************************************************/
-
static u64 m68328_read_clk(struct clocksource *cs)
{
unsigned long flags;
@@ -106,7 +98,8 @@ void hw_timer_init(irq_handler_t handler)
TCTL = 0;
/* set ISR */
- setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
+ if (request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
/* Restart mode, Enable int, Set clock source */
TCTL = TCTL_OM | TCTL_IRQEN | CLOCK_SOURCE;
diff --git a/arch/m68k/coldfire/pit.c b/arch/m68k/coldfire/pit.c
index eb6f16b0e2e6..604acd658dec 100644
--- a/arch/m68k/coldfire/pit.c
+++ b/arch/m68k/coldfire/pit.c
@@ -111,14 +111,6 @@ static irqreturn_t pit_tick(int irq, void *dummy)
/***************************************************************************/
-static struct irqaction pit_irq = {
- .name = "timer",
- .flags = IRQF_TIMER,
- .handler = pit_tick,
-};
-
-/***************************************************************************/
-
static u64 pit_read_clk(struct clocksource *cs)
{
unsigned long flags;
@@ -156,7 +148,8 @@ void hw_timer_init(irq_handler_t handler)
cf_pit_clockevent.min_delta_ticks = 0x3f;
clockevents_register_device(&cf_pit_clockevent);
- setup_irq(MCF_IRQ_PIT1, &pit_irq);
+ if (request_irq(MCF_IRQ_PIT1, pit_tick, IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
clocksource_register_hz(&pit_clk, FREQ);
}
diff --git a/arch/m68k/coldfire/sltimers.c b/arch/m68k/coldfire/sltimers.c
index 1b11e7bacab3..c5d5862e1d2b 100644
--- a/arch/m68k/coldfire/sltimers.c
+++ b/arch/m68k/coldfire/sltimers.c
@@ -50,18 +50,14 @@ irqreturn_t mcfslt_profile_tick(int irq, void *dummy)
return IRQ_HANDLED;
}
-static struct irqaction mcfslt_profile_irq = {
- .name = "profile timer",
- .flags = IRQF_TIMER,
- .handler = mcfslt_profile_tick,
-};
-
void mcfslt_profile_init(void)
{
printk(KERN_INFO "PROFILE: lodging TIMER 1 @ %dHz as profile timer\n",
PROFILEHZ);
- setup_irq(MCF_IRQ_PROFILER, &mcfslt_profile_irq);
+ if (request_irq(MCF_IRQ_PROFILER, mcfslt_profile_tick, IRQF_TIMER,
+ "profile timer", NULL))
+ pr_err("%s: request_irq() failed\n", "profile timer");
/* Set up TIMER 2 as high speed profile clock */
__raw_writel(MCF_BUSCLK / PROFILEHZ - 1, PA(MCFSLT_STCNT));
@@ -92,12 +88,6 @@ static irqreturn_t mcfslt_tick(int irq, void *dummy)
return timer_interrupt(irq, dummy);
}
-static struct irqaction mcfslt_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER,
- .handler = mcfslt_tick,
-};
-
static u64 mcfslt_read_clk(struct clocksource *cs)
{
unsigned long flags;
@@ -140,7 +130,8 @@ void hw_timer_init(irq_handler_t handler)
mcfslt_cnt = mcfslt_cycles_per_jiffy;
timer_interrupt = handler;
- setup_irq(MCF_IRQ_TIMER, &mcfslt_timer_irq);
+ if (request_irq(MCF_IRQ_TIMER, mcfslt_tick, IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
clocksource_register_hz(&mcfslt_clk, MCF_BUSCLK);
diff --git a/arch/m68k/coldfire/timers.c b/arch/m68k/coldfire/timers.c
index 227aa5d13709..52294c1f01f8 100644
--- a/arch/m68k/coldfire/timers.c
+++ b/arch/m68k/coldfire/timers.c
@@ -82,14 +82,6 @@ static irqreturn_t mcftmr_tick(int irq, void *dummy)
/***************************************************************************/
-static struct irqaction mcftmr_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER,
- .handler = mcftmr_tick,
-};
-
-/***************************************************************************/
-
static u64 mcftmr_read_clk(struct clocksource *cs)
{
unsigned long flags;
@@ -134,7 +126,8 @@ void hw_timer_init(irq_handler_t handler)
timer_interrupt = handler;
init_timer_irq();
- setup_irq(MCF_IRQ_TIMER, &mcftmr_timer_irq);
+ if (request_irq(MCF_IRQ_TIMER, mcftmr_tick, IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
#ifdef CONFIG_HIGHPROFILE
coldfire_profile_init();
@@ -170,12 +163,6 @@ irqreturn_t coldfire_profile_tick(int irq, void *dummy)
/***************************************************************************/
-static struct irqaction coldfire_profile_irq = {
- .name = "profile timer",
- .flags = IRQF_TIMER,
- .handler = coldfire_profile_tick,
-};
-
void coldfire_profile_init(void)
{
printk(KERN_INFO "PROFILE: lodging TIMER2 @ %dHz as profile timer\n",
@@ -188,7 +175,9 @@ void coldfire_profile_init(void)
__raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 |
MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, PA(MCFTIMER_TMR));
- setup_irq(MCF_IRQ_PROFILER, &coldfire_profile_irq);
+ if (request_irq(MCF_IRQ_PROFILER, coldfire_profile_tick, IRQF_TIMER,
+ "profile timer", NULL))
+ pr_err("%s: request_irq() failed\n", "profile timer");
}
/***************************************************************************/
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-24 0:50 ` [PATCH v2 06/18] m68k: Replace " afzal mohammed
@ 2020-02-26 0:42 ` Greg Ungerer
2020-02-26 1:11 ` Finn Thain
2020-02-27 8:18 ` afzal mohammed
2020-02-29 13:15 ` afzal mohammed
1 sibling, 2 replies; 78+ messages in thread
From: Greg Ungerer @ 2020-02-26 0:42 UTC (permalink / raw)
To: afzal mohammed, linux-m68k, linux-kernel
Cc: Thomas Gleixner, Geert Uytterhoeven, Finn Thain
Hi Afzal,
On 24/2/20 10:50 am, afzal mohammed wrote:
> request_irq() is preferred over setup_irq(). The early boot setup_irq()
> invocations happen either via 'init_IRQ()' or 'time_init()', while
> memory allocators are ready by 'mm_init()'.
>
> Per tglx[1], setup_irq() existed in olden days when allocators were not
> ready by the time early interrupts were initialized.
>
> Hence replace setup_irq() by request_irq().
>
> Seldom remove_irq() usage has been observed coupled with setup_irq(),
> wherever that has been found, it too has been replaced by free_irq().
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> Tested-by: Greg Ungerer <gerg@linux-m68k.org> # ColdFire
> ---
>
> v2:
> * Replace pr_err("request_irq() on %s failed" by
> pr_err("%s: request_irq() failed"
> * Commit message massage
> * remove now irrelevant comment lines at 3 places
>
> arch/m68k/68000/timers.c | 11 ++---------
> arch/m68k/coldfire/pit.c | 11 ++---------
> arch/m68k/coldfire/sltimers.c | 19 +++++--------------
> arch/m68k/coldfire/timers.c | 21 +++++----------------
> 4 files changed, 14 insertions(+), 48 deletions(-)
>
> diff --git a/arch/m68k/68000/timers.c b/arch/m68k/68000/timers.c
> index 71ddb4c98726..55a76a2d3d58 100644
> --- a/arch/m68k/68000/timers.c
> +++ b/arch/m68k/68000/timers.c
> @@ -68,14 +68,6 @@ static irqreturn_t hw_tick(int irq, void *dummy)
>
> /***************************************************************************/
>
> -static struct irqaction m68328_timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER,
> - .handler = hw_tick,
> -};
> -
> -/***************************************************************************/
> -
> static u64 m68328_read_clk(struct clocksource *cs)
> {
> unsigned long flags;
> @@ -106,7 +98,8 @@ void hw_timer_init(irq_handler_t handler)
> TCTL = 0;
>
> /* set ISR */
> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> + if (request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
Why not just:
pr_err("timer: request_irq() failed\n");
And maybe would it be useful to print out the error return code from a
failed request_irq()? What about displaying the requested IRQ number as well?
Just a thought.
Regards
Greg
> /* Restart mode, Enable int, Set clock source */
> TCTL = TCTL_OM | TCTL_IRQEN | CLOCK_SOURCE;
> diff --git a/arch/m68k/coldfire/pit.c b/arch/m68k/coldfire/pit.c
> index eb6f16b0e2e6..604acd658dec 100644
> --- a/arch/m68k/coldfire/pit.c
> +++ b/arch/m68k/coldfire/pit.c
> @@ -111,14 +111,6 @@ static irqreturn_t pit_tick(int irq, void *dummy)
>
> /***************************************************************************/
>
> -static struct irqaction pit_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER,
> - .handler = pit_tick,
> -};
> -
> -/***************************************************************************/
> -
> static u64 pit_read_clk(struct clocksource *cs)
> {
> unsigned long flags;
> @@ -156,7 +148,8 @@ void hw_timer_init(irq_handler_t handler)
> cf_pit_clockevent.min_delta_ticks = 0x3f;
> clockevents_register_device(&cf_pit_clockevent);
>
> - setup_irq(MCF_IRQ_PIT1, &pit_irq);
> + if (request_irq(MCF_IRQ_PIT1, pit_tick, IRQF_TIMER, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
>
> clocksource_register_hz(&pit_clk, FREQ);
> }
> diff --git a/arch/m68k/coldfire/sltimers.c b/arch/m68k/coldfire/sltimers.c
> index 1b11e7bacab3..c5d5862e1d2b 100644
> --- a/arch/m68k/coldfire/sltimers.c
> +++ b/arch/m68k/coldfire/sltimers.c
> @@ -50,18 +50,14 @@ irqreturn_t mcfslt_profile_tick(int irq, void *dummy)
> return IRQ_HANDLED;
> }
>
> -static struct irqaction mcfslt_profile_irq = {
> - .name = "profile timer",
> - .flags = IRQF_TIMER,
> - .handler = mcfslt_profile_tick,
> -};
> -
> void mcfslt_profile_init(void)
> {
> printk(KERN_INFO "PROFILE: lodging TIMER 1 @ %dHz as profile timer\n",
> PROFILEHZ);
>
> - setup_irq(MCF_IRQ_PROFILER, &mcfslt_profile_irq);
> + if (request_irq(MCF_IRQ_PROFILER, mcfslt_profile_tick, IRQF_TIMER,
> + "profile timer", NULL))
> + pr_err("%s: request_irq() failed\n", "profile timer");
>
> /* Set up TIMER 2 as high speed profile clock */
> __raw_writel(MCF_BUSCLK / PROFILEHZ - 1, PA(MCFSLT_STCNT));
> @@ -92,12 +88,6 @@ static irqreturn_t mcfslt_tick(int irq, void *dummy)
> return timer_interrupt(irq, dummy);
> }
>
> -static struct irqaction mcfslt_timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER,
> - .handler = mcfslt_tick,
> -};
> -
> static u64 mcfslt_read_clk(struct clocksource *cs)
> {
> unsigned long flags;
> @@ -140,7 +130,8 @@ void hw_timer_init(irq_handler_t handler)
> mcfslt_cnt = mcfslt_cycles_per_jiffy;
>
> timer_interrupt = handler;
> - setup_irq(MCF_IRQ_TIMER, &mcfslt_timer_irq);
> + if (request_irq(MCF_IRQ_TIMER, mcfslt_tick, IRQF_TIMER, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
>
> clocksource_register_hz(&mcfslt_clk, MCF_BUSCLK);
>
> diff --git a/arch/m68k/coldfire/timers.c b/arch/m68k/coldfire/timers.c
> index 227aa5d13709..52294c1f01f8 100644
> --- a/arch/m68k/coldfire/timers.c
> +++ b/arch/m68k/coldfire/timers.c
> @@ -82,14 +82,6 @@ static irqreturn_t mcftmr_tick(int irq, void *dummy)
>
> /***************************************************************************/
>
> -static struct irqaction mcftmr_timer_irq = {
> - .name = "timer",
> - .flags = IRQF_TIMER,
> - .handler = mcftmr_tick,
> -};
> -
> -/***************************************************************************/
> -
> static u64 mcftmr_read_clk(struct clocksource *cs)
> {
> unsigned long flags;
> @@ -134,7 +126,8 @@ void hw_timer_init(irq_handler_t handler)
>
> timer_interrupt = handler;
> init_timer_irq();
> - setup_irq(MCF_IRQ_TIMER, &mcftmr_timer_irq);
> + if (request_irq(MCF_IRQ_TIMER, mcftmr_tick, IRQF_TIMER, "timer", NULL))
> + pr_err("%s: request_irq() failed\n", "timer");
>
> #ifdef CONFIG_HIGHPROFILE
> coldfire_profile_init();
> @@ -170,12 +163,6 @@ irqreturn_t coldfire_profile_tick(int irq, void *dummy)
>
> /***************************************************************************/
>
> -static struct irqaction coldfire_profile_irq = {
> - .name = "profile timer",
> - .flags = IRQF_TIMER,
> - .handler = coldfire_profile_tick,
> -};
> -
> void coldfire_profile_init(void)
> {
> printk(KERN_INFO "PROFILE: lodging TIMER2 @ %dHz as profile timer\n",
> @@ -188,7 +175,9 @@ void coldfire_profile_init(void)
> __raw_writew(MCFTIMER_TMR_ENORI | MCFTIMER_TMR_CLK16 |
> MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENABLE, PA(MCFTIMER_TMR));
>
> - setup_irq(MCF_IRQ_PROFILER, &coldfire_profile_irq);
> + if (request_irq(MCF_IRQ_PROFILER, coldfire_profile_tick, IRQF_TIMER,
> + "profile timer", NULL))
> + pr_err("%s: request_irq() failed\n", "profile timer");
> }
>
> /***************************************************************************/
>
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-26 0:42 ` Greg Ungerer
@ 2020-02-26 1:11 ` Finn Thain
2020-02-26 2:11 ` Greg Ungerer
2020-02-27 8:18 ` afzal mohammed
1 sibling, 1 reply; 78+ messages in thread
From: Finn Thain @ 2020-02-26 1:11 UTC (permalink / raw)
To: Greg Ungerer
Cc: afzal mohammed, linux-m68k, linux-kernel, Thomas Gleixner,
Geert Uytterhoeven
On Wed, 26 Feb 2020, Greg Ungerer wrote:
> Hi Afzal,
>
> On 24/2/20 10:50 am, afzal mohammed wrote:
> > request_irq() is preferred over setup_irq(). The early boot setup_irq()
> > invocations happen either via 'init_IRQ()' or 'time_init()', while
> > memory allocators are ready by 'mm_init()'.
> >
> > Per tglx[1], setup_irq() existed in olden days when allocators were not
> > ready by the time early interrupts were initialized.
> >
> > Hence replace setup_irq() by request_irq().
> >
> > Seldom remove_irq() usage has been observed coupled with setup_irq(),
> > wherever that has been found, it too has been replaced by free_irq().
> >
> > [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
> >
> > Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> > Tested-by: Greg Ungerer <gerg@linux-m68k.org> # ColdFire
> > ---
> >
> > v2:
> > * Replace pr_err("request_irq() on %s failed" by
> > pr_err("%s: request_irq() failed"
> > * Commit message massage
> > * remove now irrelevant comment lines at 3 places
> >
> > arch/m68k/68000/timers.c | 11 ++---------
> > arch/m68k/coldfire/pit.c | 11 ++---------
> > arch/m68k/coldfire/sltimers.c | 19 +++++--------------
> > arch/m68k/coldfire/timers.c | 21 +++++----------------
> > 4 files changed, 14 insertions(+), 48 deletions(-)
> >
> > diff --git a/arch/m68k/68000/timers.c b/arch/m68k/68000/timers.c
> > index 71ddb4c98726..55a76a2d3d58 100644
> > --- a/arch/m68k/68000/timers.c
> > +++ b/arch/m68k/68000/timers.c
> > @@ -68,14 +68,6 @@ static irqreturn_t hw_tick(int irq, void *dummy)
> > /***************************************************************************/
> > -static struct irqaction m68328_timer_irq = {
> > - .name = "timer",
> > - .flags = IRQF_TIMER,
> > - .handler = hw_tick,
> > -};
> > -
> >
> > -/***************************************************************************/
> > -
> > static u64 m68328_read_clk(struct clocksource *cs)
> > {
> > unsigned long flags;
> > @@ -106,7 +98,8 @@ void hw_timer_init(irq_handler_t handler)
> > TCTL = 0;
> > /* set ISR */
> > - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> > + if (request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL))
> > + pr_err("%s: request_irq() failed\n", "timer");
>
> Why not just:
>
> pr_err("timer: request_irq() failed\n");
>
I believe that the compiler would coalesce the two "timer" string
constants in the patch from Afzal (as per my suggestion).
I suspect that your version costs a few extra bytes everywhere it appears
(but I didn't check).
> And maybe would it be useful to print out the error return code from a
> failed request_irq()? What about displaying the requested IRQ number as
> well? Just a thought.
>
That error would almost always be -EBUSY, right?
Moreover, compare this change,
- setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
+ request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
with this change,
+ int err;
- setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
+ err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
+ if (err)
+ return err;
Isn't the latter change the more common pattern? It prints nothing.
And arguably, the former example is actually the change that's described
in the commit description.
This patch seems to be making two orthogonal changes but I'll leave that
question to the maintainer. (I'm not really trying to NAK this patch.)
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-26 1:11 ` Finn Thain
@ 2020-02-26 2:11 ` Greg Ungerer
2020-02-26 6:39 ` Finn Thain
0 siblings, 1 reply; 78+ messages in thread
From: Greg Ungerer @ 2020-02-26 2:11 UTC (permalink / raw)
To: Finn Thain
Cc: afzal mohammed, linux-m68k, linux-kernel, Thomas Gleixner,
Geert Uytterhoeven
On 26/2/20 11:11 am, Finn Thain wrote:
> On Wed, 26 Feb 2020, Greg Ungerer wrote:
>> On 24/2/20 10:50 am, afzal mohammed wrote:
>>> request_irq() is preferred over setup_irq(). The early boot setup_irq()
>>> invocations happen either via 'init_IRQ()' or 'time_init()', while
>>> memory allocators are ready by 'mm_init()'.
>>>
>>> Per tglx[1], setup_irq() existed in olden days when allocators were not
>>> ready by the time early interrupts were initialized.
>>>
>>> Hence replace setup_irq() by request_irq().
>>>
>>> Seldom remove_irq() usage has been observed coupled with setup_irq(),
>>> wherever that has been found, it too has been replaced by free_irq().
>>>
>>> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>>>
>>> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
>>> Tested-by: Greg Ungerer <gerg@linux-m68k.org> # ColdFire
>>> ---
>>>
>>> v2:
>>> * Replace pr_err("request_irq() on %s failed" by
>>> pr_err("%s: request_irq() failed"
>>> * Commit message massage
>>> * remove now irrelevant comment lines at 3 places
>>>
>>> arch/m68k/68000/timers.c | 11 ++---------
>>> arch/m68k/coldfire/pit.c | 11 ++---------
>>> arch/m68k/coldfire/sltimers.c | 19 +++++--------------
>>> arch/m68k/coldfire/timers.c | 21 +++++----------------
>>> 4 files changed, 14 insertions(+), 48 deletions(-)
>>>
>>> diff --git a/arch/m68k/68000/timers.c b/arch/m68k/68000/timers.c
>>> index 71ddb4c98726..55a76a2d3d58 100644
>>> --- a/arch/m68k/68000/timers.c
>>> +++ b/arch/m68k/68000/timers.c
>>> @@ -68,14 +68,6 @@ static irqreturn_t hw_tick(int irq, void *dummy)
>>> /***************************************************************************/
>>> -static struct irqaction m68328_timer_irq = {
>>> - .name = "timer",
>>> - .flags = IRQF_TIMER,
>>> - .handler = hw_tick,
>>> -};
>>> -
>>>
>>> -/***************************************************************************/
>>> -
>>> static u64 m68328_read_clk(struct clocksource *cs)
>>> {
>>> unsigned long flags;
>>> @@ -106,7 +98,8 @@ void hw_timer_init(irq_handler_t handler)
>>> TCTL = 0;
>>> /* set ISR */
>>> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
>>> + if (request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL))
>>> + pr_err("%s: request_irq() failed\n", "timer");
>>
>> Why not just:
>>
>> pr_err("timer: request_irq() failed\n");
>>
>
> I believe that the compiler would coalesce the two "timer" string
> constants in the patch from Afzal (as per my suggestion).>
> I suspect that your version costs a few extra bytes everywhere it appears
> (but I didn't check).
Maybe. It costs some extra code for another argument push and a bunch
of cycles to process the %s at run time though (if triggered).
The profile timer setup is not commonly used, so in most typical
builds there is no scope for coalescing the same string. So in the end
most builds will be a few bytes larger with the separated strings.
But really that is not the point. It just seems simpler and clearer to
me to put the string in place - all in one.
>> And maybe would it be useful to print out the error return code from a
>> failed request_irq()? What about displaying the requested IRQ number as
>> well? Just a thought.
>>
>
> That error would almost always be -EBUSY, right?
I expect it will never fail this early in boot.
But how will you know if it really is EBUSY if you don't print it out?
> Moreover, compare this change,
>
> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> + request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
>
> with this change,
>
> + int err;
>
> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
> + if (err)
> + return err;
>
> Isn't the latter change the more common pattern? It prints nothing.
Hmm, in my experience the much more common pattern is:
> + int err;
>
> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
> + if (err) {
> + pr_err("timer: request_irq() failed with err=%d\n", err);
> + return err;
> + }
Where the pr_err() could be one of pr_err, printk, dev_err, ...
Regards
Greg
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-26 2:11 ` Greg Ungerer
@ 2020-02-26 6:39 ` Finn Thain
2020-02-26 12:26 ` Greg Ungerer
0 siblings, 1 reply; 78+ messages in thread
From: Finn Thain @ 2020-02-26 6:39 UTC (permalink / raw)
To: Greg Ungerer
Cc: afzal mohammed, linux-m68k, linux-kernel, Thomas Gleixner,
Geert Uytterhoeven
On Wed, 26 Feb 2020, Greg Ungerer wrote:
> > That error would almost always be -EBUSY, right?
>
> I expect it will never fail this early in boot.
If so, it suggests to me that tweaking the error message string is just
bikeshedding and that adding these error messages across the tree is just
bloat.
> But how will you know if it really is EBUSY if you don't print it out?
>
> > Moreover, compare this change,
> >
> > - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> > + request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
> >
> > with this change,
> >
> > + int err;
> >
> > - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> > + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
> > + if (err)
> > + return err;
> >
> > Isn't the latter change the more common pattern? It prints nothing.
>
> Hmm, in my experience the much more common pattern is:
>
> > + int err;
> >
> > - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> > + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
> > + if (err) {
> > + pr_err("timer: request_irq() failed with err=%d\n", err);
> > + return err;
> > + }
>
> Where the pr_err() could be one of pr_err, printk, dev_err, ...
>
A rough poll using 'git grep' seems to agree with your assessment.
If -EBUSY means the end user has misconfigured something, printing
"request_irq failed" would be helpful. But does that still happen?
Printing any error message for -ENOMEM is frowned upon, and printing -12
is really unhelpful. So the most popular pattern isn't that great, though
it is usually less verbose than the example you've given.
Besides, introducing local variables and altering control flow seems well
out-of-scope for this kind of refactoring, right?
Anyway, if you're going to add an error message,
pr_err("%s: request_irq failed", foo) is unavoidable whenever foo isn't a
string constant, so one can't expect to grep the source code for the
literal error message from the log.
BTW, one of the benefits of "%s: request_irq failed" is that a compilation
unit with multiple request_irq calls permits the compiler to coalesce all
duplicated format strings. Whereas, that's not possible with
"foo: request_irq failed" and "bar: request_irq failed".
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-26 6:39 ` Finn Thain
@ 2020-02-26 12:26 ` Greg Ungerer
2020-02-26 22:31 ` Finn Thain
0 siblings, 1 reply; 78+ messages in thread
From: Greg Ungerer @ 2020-02-26 12:26 UTC (permalink / raw)
To: Finn Thain
Cc: afzal mohammed, linux-m68k, linux-kernel, Thomas Gleixner,
Geert Uytterhoeven
On 26/2/20 4:39 pm, Finn Thain wrote:
> On Wed, 26 Feb 2020, Greg Ungerer wrote:
>
>>> That error would almost always be -EBUSY, right?
>>
>> I expect it will never fail this early in boot.
>
> If so, it suggests to me that tweaking the error message string is just
> bikeshedding and that adding these error messages across the tree is just
> bloat.
>
>> But how will you know if it really is EBUSY if you don't print it out?
>>
>>> Moreover, compare this change,
>>>
>>> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
>>> + request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
>>>
>>> with this change,
>>>
>>> + int err;
>>>
>>> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
>>> + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
>>> + if (err)
>>> + return err;
>>>
>>> Isn't the latter change the more common pattern? It prints nothing.
>>
>> Hmm, in my experience the much more common pattern is:
>>
>>> + int err;
>>>
>>> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
>>> + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
>>> + if (err) {
>>> + pr_err("timer: request_irq() failed with err=%d\n", err);
>>> + return err;
>>> + }
>>
>> Where the pr_err() could be one of pr_err, printk, dev_err, ...
>>
>
> A rough poll using 'git grep' seems to agree with your assessment.
>
> If -EBUSY means the end user has misconfigured something, printing
> "request_irq failed" would be helpful. But does that still happen?
I have seen it many times. Its not at all difficult to get interrupt
assignments wrong, duplicated, or otherwise mistaken when creating
device trees. Not so much m68k/coldfire platforms where they are
most commonly hard coded.
> Printing any error message for -ENOMEM is frowned upon, and printing -12
> is really unhelpful. So the most popular pattern isn't that great, though
> it is usually less verbose than the example you've given.
>
> Besides, introducing local variables and altering control flow seems well
> out-of-scope for this kind of refactoring, right?
I don't agree with the local variable part. Adding a local variable to
keep track of the error return code doesn't seem out of scope for this change.
The patch as Afzal sent it doesn't change the control flow - and
that is the right thing to do here.
> Anyway, if you're going to add an error message,
> pr_err("%s: request_irq failed", foo) is unavoidable whenever foo isn't a
> string constant, so one can't expect to grep the source code for the
> literal error message from the log.
>
> BTW, one of the benefits of "%s: request_irq failed" is that a compilation
> unit with multiple request_irq calls permits the compiler to coalesce all
> duplicated format strings. Whereas, that's not possible with
> "foo: request_irq failed" and "bar: request_irq failed".
Given the wide variety of message text used with failed request_irq() calls
it would be shear luck that this matched anything else. A quick grep shows
that "%s: request_irq() failed\n" has no other exact matches in the current
kernel source.
Regards
Greg
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-26 12:26 ` Greg Ungerer
@ 2020-02-26 22:31 ` Finn Thain
2020-02-27 6:37 ` Greg Ungerer
0 siblings, 1 reply; 78+ messages in thread
From: Finn Thain @ 2020-02-26 22:31 UTC (permalink / raw)
To: Greg Ungerer
Cc: afzal mohammed, linux-m68k, linux-kernel, Thomas Gleixner,
Geert Uytterhoeven
On Wed, 26 Feb 2020, Greg Ungerer wrote:
> On 26/2/20 4:39 pm, Finn Thain wrote:
> >
> > If -EBUSY means the end user has misconfigured something, printing
> > "request_irq failed" would be helpful. But does that still happen?
>
> I have seen it many times. Its not at all difficult to get interrupt
> assignments wrong, duplicated, or otherwise mistaken when creating
> device trees. Not so much m68k/coldfire platforms where they are most
> commonly hard coded.
>
I was thinking of end users and production builds. You seem to be
concerned about developers. Catering to developers argues for pr_debug()
here, if anything.
You say you've seen -16 errors "many times". Have you also seen -22? Did
the ability to distinguish these values help you to fix your device tree?
> > ...
> >
> > BTW, one of the benefits of "%s: request_irq failed" is that a
> > compilation unit with multiple request_irq calls permits the compiler
> > to coalesce all duplicated format strings. Whereas, that's not
> > possible with "foo: request_irq failed" and "bar: request_irq failed".
>
> Given the wide variety of message text used with failed request_irq()
> calls it would be shear luck that this matched anything else. A quick
> grep shows that "%s: request_irq() failed\n" has no other exact matches
> in the current kernel source.
>
You are overlooking the patches in this series that produce multiple
identical format strings.
And the present lack of consistency isn't a great argument for more
inconsistency IMO.
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-26 22:31 ` Finn Thain
@ 2020-02-27 6:37 ` Greg Ungerer
2020-02-27 22:19 ` Finn Thain
0 siblings, 1 reply; 78+ messages in thread
From: Greg Ungerer @ 2020-02-27 6:37 UTC (permalink / raw)
To: Finn Thain
Cc: afzal mohammed, linux-m68k, linux-kernel, Thomas Gleixner,
Geert Uytterhoeven
On 27/2/20 8:31 am, Finn Thain wrote:
> On Wed, 26 Feb 2020, Greg Ungerer wrote:
>
>> On 26/2/20 4:39 pm, Finn Thain wrote:
>>>
>>> If -EBUSY means the end user has misconfigured something, printing
>>> "request_irq failed" would be helpful. But does that still happen?
>>
>> I have seen it many times. Its not at all difficult to get interrupt
>> assignments wrong, duplicated, or otherwise mistaken when creating
>> device trees. Not so much m68k/coldfire platforms where they are most
>> commonly hard coded.
>>
>
> I was thinking of end users and production builds. You seem to be
> concerned about developers. Catering to developers argues for pr_debug()
> here, if anything.
Perhaps. But most of the kernel boot output as it stands today
is more debug (or maybe notice) than useful.
> You say you've seen -16 errors "many times". Have you also seen -22? Did
> the ability to distinguish these values help you to fix your device tree?
Probably not. But the real difficulty is trying to diagnose other
peoples problems with just console trace output. The more information
there the better.
>>> ...
>>>
>>> BTW, one of the benefits of "%s: request_irq failed" is that a
>>> compilation unit with multiple request_irq calls permits the compiler
>>> to coalesce all duplicated format strings. Whereas, that's not
>>> possible with "foo: request_irq failed" and "bar: request_irq failed".
>>
>> Given the wide variety of message text used with failed request_irq()
>> calls it would be shear luck that this matched anything else. A quick
>> grep shows that "%s: request_irq() failed\n" has no other exact matches
>> in the current kernel source.
>>
>
> You are overlooking the patches in this series that produce multiple
> identical format strings.
No I didn't :-) None of these will end up compiled in at the same time.
The various ColdFire SoC parts have a single timer hardware module -
and only the required one will be compiled in, not all of them.
Regards
Greg
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-27 6:37 ` Greg Ungerer
@ 2020-02-27 22:19 ` Finn Thain
0 siblings, 0 replies; 78+ messages in thread
From: Finn Thain @ 2020-02-27 22:19 UTC (permalink / raw)
To: Greg Ungerer
Cc: afzal mohammed, linux-m68k, linux-kernel, Thomas Gleixner,
Geert Uytterhoeven
On Thu, 27 Feb 2020, Greg Ungerer wrote:
> On 27/2/20 8:31 am, Finn Thain wrote:
>
> >>>
> >>> BTW, one of the benefits of "%s: request_irq failed" is that a
> >>> compilation unit with multiple request_irq calls permits the
> >>> compiler to coalesce all duplicated format strings. Whereas, that's
> >>> not possible with "foo: request_irq failed" and "bar: request_irq
> >>> failed".
> >>
> >> Given the wide variety of message text used with failed request_irq()
> >> calls it would be shear luck that this matched anything else. A quick
> >> grep shows that "%s: request_irq() failed\n" has no other exact
> >> matches in the current kernel source.
> >
> > You are overlooking the patches in this series that produce multiple
> > identical format strings.
>
> No I didn't :-) None of these will end up compiled in at the same time.
> The various ColdFire SoC parts have a single timer hardware module - and
> only the required one will be compiled in, not all of them.
>
I was referring to e.g. [PATCH v2 08/18] MIPS: Replace setup_irq() by
request_irq(), in which you can find this:
@@ -116,8 +110,16 @@ static void __init ar7_irq_init(int base)
handle_level_irq);
}
- setup_irq(2, &ar7_cascade_action);
- setup_irq(ar7_irq_base, &ar7_cascade_action);
+ if (request_irq(2, no_action, IRQF_NO_THREAD, "AR7 cascade interrupt",
+ NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "AR7 cascade interrupt");
+ }
+ if (request_irq(ar7_irq_base, no_action, IRQF_NO_THREAD,
+ "AR7 cascade interrupt", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "AR7 cascade interrupt");
+ }
set_c0_status(IE_IRQ0);
}
BTW, I think that deduplication of string constants can happen during LTO,
so the benefit of consistency need not be confined to a compilation unit.
I don't think this is relevant to kernel builds.
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-26 0:42 ` Greg Ungerer
2020-02-26 1:11 ` Finn Thain
@ 2020-02-27 8:18 ` afzal mohammed
2020-02-27 8:32 ` Geert Uytterhoeven
2020-02-28 7:05 ` Greg Ungerer
1 sibling, 2 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-27 8:18 UTC (permalink / raw)
To: Greg Ungerer, Finn Thain
Cc: linux-m68k, linux-kernel, Thomas Gleixner, Geert Uytterhoeven
Hi Greg & Finn,
On Wed, Feb 26, 2020 at 10:42:00AM +1000, Greg Ungerer wrote:
> > - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> > + if (request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL))
> > + pr_err("%s: request_irq() failed\n", "timer");
>
> Why not just:
>
> pr_err("timer: request_irq() failed\n");
The reason to use %s was that it could be automated by cocci script &
the o/p didn't look bad. Second arg to pr_err is what cocci
presents me & there is wide variation in the name across the tree as
Finn noted.
Excerpts from v1 cover letter [1],
- setup_irq(E1,&act);
+ if (request_irq(E1,f_handler,f_flags,f_name,f_dev_id))
+ pr_err("request_irq() on %s failed\n", f_name);
[ don't get mislead by string contents used, this was for v1, just to
show how the result was obtained. To take care of Finn's suggesstion,
instead of modifying cocci & then making changes other changes over
that (i could not fully automate w/ cocci, and Julia said my script
is fine as is), it was easier to run sed over the v1 patches ]
> And maybe would it be useful to print out the error return code from a
> failed request_irq()?
Since most of the existing setup_irq() didn't even check & handle
error return, my first thought was just s/setup_irq/request_irq, it
was easier from scripting pointing of view. i felt uncomfortable doing
nothing in case of error. Also noted that request_irq() definition has
a "__much_check", so decided to add it.
And there is a wide variation in the way return value is handled by
the caller, some already have a local variable, some don't. Moreover
in many cases caller cannot return any value, i.e. void, so what
to be done with return value was another issue, in some cases in
addition to printing error value, the error value can't be returned,
while some others it can.
> What about displaying the requested IRQ number as well?
> Just a thought.
i initially did the cocci to display IRQ number as the 3rd arg to
pr_err, but then it was observed that most of the those lines were
exceeding 80 chars, though cocci could align args properly in next
line, it could not put flower braces to the preceeding
'if request_irq()' & in next line (though it is a single C statement
inside 'if', per kernel coding style, flower brace had to be put for a
single statement that spans multiple lines ], else it had to be
manually added treewide.
On Wed, Feb 26, 2020 at 12:11:55PM +1100, Finn Thain wrote:
> Moreover, compare this change,
>
> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> + request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
>
> with this change,
>
> + int err;
>
> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
> + if (err)
> + return err;
>
> Isn't the latter change the more common pattern? It prints nothing.
>
> And arguably, the former example is actually the change that's described
> in the commit description.
>
> This patch seems to be making two orthogonal changes but I'll leave that
> question to the maintainer. (I'm not really trying to NAK this patch.)
Instead of not checking the error value as in the existing cases &
mechanically replace w/ request_irq(), thought of at least giving user
the indication by way of pr_err (but i think most of the use is for
tick timer, if it fails, in most cases, system would not even boot)
due to the reasons mentioned above.
On Wed, Feb 26, 2020 at 12:11:38PM +1000, Greg Ungerer wrote:
> Hmm, in my experience the much more common pattern is:
>
> > + int err;
> >
> > - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> > + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
> > + if (err) {
> > + pr_err("timer: request_irq() failed with err=%d\n", err);
> > + return err;
> > + }
This is my preferred style, but note that returning error is not
possible in many of these cases as callers are void return type.
On Wed, Feb 26, 2020 at 05:39:57PM +1100, Finn Thain wrote:
> Besides, introducing local variables and altering control flow seems well
> out-of-scope for this kind of refactoring, right?
To make changes perfect, it would be required to get into context of
each case (>150), and do it manually as there is wide variation like
whether caller can return error code, whether already a local integer
is defined to catch the error, whether it returns error after a goto,
whether we should allow it to proceed if it fails and so on.
And handling manually all the cases tree wide would be more error
prone & time consuming. i was relieved that there was only one build
error reported by test robot (i had done build & boot test only on ARM
& x86_64), given the amount of manual changes i had to do on top of
cocci generated ones.
At the same time, i didn't want to just mechanically replace & wanted
to add some value to the existing setup, which resulted in this patch.
My thought process was to do treewide removal of setup_irq() and
possibly low hanging cleanup's at the places where setup_irq() lives
to make sure that surrounding situation will be better than or at
least equal to the current.
But if the consensus is that all these situations have to be taken
care, let me know.
On Wed, Feb 26, 2020 at 10:26:55PM +1000, Greg Ungerer wrote:
> A quick grep shows
> that "%s: request_irq() failed\n" has no other exact matches in the current
> kernel source.
git grep -n '%s: request_irq' gives a few somewhat similar ones, i
remember it because searching this string after my changes to verify
gave more than that i added :)
Regards
afzal
[1] https://lkml.kernel.org/r/cover.1581478323.git.afzal.mohd.ma@gmail.com
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-27 8:18 ` afzal mohammed
@ 2020-02-27 8:32 ` Geert Uytterhoeven
2020-02-27 12:06 ` afzal mohammed
2020-02-28 7:05 ` Greg Ungerer
1 sibling, 1 reply; 78+ messages in thread
From: Geert Uytterhoeven @ 2020-02-27 8:32 UTC (permalink / raw)
To: afzal mohammed
Cc: Greg Ungerer, Finn Thain, linux-m68k, Linux Kernel Mailing List,
Thomas Gleixner
Hi Afzal,
On Thu, Feb 27, 2020 at 9:18 AM afzal mohammed <afzal.mohd.ma@gmail.com> wrote:
> On Wed, Feb 26, 2020 at 10:42:00AM +1000, Greg Ungerer wrote:
> > > - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
> > > + if (request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL))
> > > + pr_err("%s: request_irq() failed\n", "timer");
> >
> > Why not just:
> >
> > pr_err("timer: request_irq() failed\n");
>
> The reason to use %s was that it could be automated by cocci script &
> the o/p didn't look bad. Second arg to pr_err is what cocci
> presents me & there is wide variation in the name across the tree as
> Finn noted.
>
> Excerpts from v1 cover letter [1],
>
> - setup_irq(E1,&act);
> + if (request_irq(E1,f_handler,f_flags,f_name,f_dev_id))
> + pr_err("request_irq() on %s failed\n", f_name);
>
> [ don't get mislead by string contents used, this was for v1, just to
> show how the result was obtained. To take care of Finn's suggesstion,
> instead of modifying cocci & then making changes other changes over
> that (i could not fully automate w/ cocci, and Julia said my script
> is fine as is), it was easier to run sed over the v1 patches ]
>
> > And maybe would it be useful to print out the error return code from a
> > failed request_irq()?
>
> Since most of the existing setup_irq() didn't even check & handle
> error return, my first thought was just s/setup_irq/request_irq, it
> was easier from scripting pointing of view. i felt uncomfortable doing
> nothing in case of error. Also noted that request_irq() definition has
> a "__much_check", so decided to add it.
Most (all?) of the code calling setup_irq() is very old, and most of the calls
happen very early, so any such failures are hard failures that prevent the
system from booting at all. Hence printing a message may be futile, as it
may happen before the console has been initialized (modulo early-printk).
Just my 2 €c.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-27 8:32 ` Geert Uytterhoeven
@ 2020-02-27 12:06 ` afzal mohammed
2020-02-27 22:38 ` Finn Thain
0 siblings, 1 reply; 78+ messages in thread
From: afzal mohammed @ 2020-02-27 12:06 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Greg Ungerer, Finn Thain, linux-m68k, Linux Kernel Mailing List,
Thomas Gleixner
Hi Geert,
On Thu, Feb 27, 2020 at 09:32:46AM +0100, Geert Uytterhoeven wrote:
> On Thu, Feb 27, 2020 at 9:18 AM afzal mohammed <afzal.mohd.ma@gmail.com> wrote:
> > Since most of the existing setup_irq() didn't even check & handle
> > error return, my first thought was just s/setup_irq/request_irq, it
> > was easier from scripting pointing of view. i felt uncomfortable doing
> > nothing in case of error. Also noted that request_irq() definition has
> > a "__much_check", so decided to add it.
>
> Most (all?) of the code calling setup_irq() is very old, and most of the calls
> happen very early, so any such failures are hard failures that prevent the
> system from booting at all. Hence printing a message may be futile, as it
> may happen before the console has been initialized (modulo early-printk).
The main reason to at least acknowledge the return value was due to
__much_check in request_irq() definition, though w/ the compiler that
i used, there were no warnings, i feared that it might warn w/
some other compilers & in some cases (may be W=[1-3] ?).
Also as most are tick timers, if request_irq() fails, system would die
in that case. But i have seen (iirc in MIPS), in the same execution
sequence multiple setup_irq() invocations, so every instance might not
be unavoidable for system boot.
For tick timer cases, a BUG() might be suitable, but i didn't even
think of that option as that is a recipe for getting trashed from head
penguin (though he would not care trivial patches like this), same
scenario w/ adding warnings.
> Just my 2 €c.
That is my 2 paise, but per exchange rate it will be far less ;)
Regards
afzal
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-27 12:06 ` afzal mohammed
@ 2020-02-27 22:38 ` Finn Thain
2020-02-29 12:41 ` afzal mohammed
0 siblings, 1 reply; 78+ messages in thread
From: Finn Thain @ 2020-02-27 22:38 UTC (permalink / raw)
To: afzal mohammed
Cc: Geert Uytterhoeven, Greg Ungerer, linux-m68k,
Linux Kernel Mailing List, Thomas Gleixner
On Thu, 27 Feb 2020, afzal mohammed wrote:
> On Thu, Feb 27, 2020 at 09:32:46AM +0100, Geert Uytterhoeven wrote:
> > On Thu, Feb 27, 2020 at 9:18 AM afzal mohammed <afzal.mohd.ma@gmail.com> wrote:
> > > Since most of the existing setup_irq() didn't even check & handle
> > > error return, my first thought was just s/setup_irq/request_irq, it
> > > was easier from scripting pointing of view. i felt uncomfortable
> > > doing nothing in case of error. Also noted that request_irq()
> > > definition has a "__much_check", so decided to add it.
> >
> > Most (all?) of the code calling setup_irq() is very old, and most of
> > the calls happen very early, so any such failures are hard failures
> > that prevent the system from booting at all. Hence printing a message
> > may be futile, as it may happen before the console has been
> > initialized (modulo early-printk).
>
> The main reason to at least acknowledge the return value was due to
> __much_check in request_irq() definition, though w/ the compiler that i
> used, there were no warnings, i feared that it might warn w/ some other
> compilers & in some cases (may be W=[1-3] ?).
>
This isn't new code, so I'd assume it's been "checked" in the sense of
"reviewed and tested".
So the lack of an error message could be taken to mean that there's no
need for an error message.
If you want to stop the compiler complaining about an unchecked return
value, assuming that it does so, please consider using
if (request_irq(...))
pr_debug(...);
That way there is no penalty paid for adding error messages that the
original author apparently did not want.
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-27 22:38 ` Finn Thain
@ 2020-02-29 12:41 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-29 12:41 UTC (permalink / raw)
To: Finn Thain
Cc: Geert Uytterhoeven, Greg Ungerer, linux-m68k,
Linux Kernel Mailing List, Thomas Gleixner
Hi Finn,
On Fri, Feb 28, 2020 at 09:38:20AM +1100, Finn Thain wrote:
> If you want to stop the compiler complaining about an unchecked return
> value, assuming that it does so, please consider using
>
> if (request_irq(...))
> pr_debug(...);
>
> That way there is no penalty paid for adding error messages that the
> original author apparently did not want.
Okay
Regards
afzal
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-27 8:18 ` afzal mohammed
2020-02-27 8:32 ` Geert Uytterhoeven
@ 2020-02-28 7:05 ` Greg Ungerer
2020-02-29 12:47 ` afzal mohammed
1 sibling, 1 reply; 78+ messages in thread
From: Greg Ungerer @ 2020-02-28 7:05 UTC (permalink / raw)
To: afzal mohammed, Finn Thain
Cc: linux-m68k, linux-kernel, Thomas Gleixner, Geert Uytterhoeven
Hi Afzal,
On 27/2/20 6:18 pm, afzal mohammed wrote:
> On Wed, Feb 26, 2020 at 10:42:00AM +1000, Greg Ungerer wrote:
>
>>> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
>>> + if (request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL))
>>> + pr_err("%s: request_irq() failed\n", "timer");
>>
>> Why not just:
>>
>> pr_err("timer: request_irq() failed\n");
>
> The reason to use %s was that it could be automated by cocci script &
> the o/p didn't look bad. Second arg to pr_err is what cocci
> presents me & there is wide variation in the name across the tree as
> Finn noted.
>
> Excerpts from v1 cover letter [1],
>
> - setup_irq(E1,&act);
> + if (request_irq(E1,f_handler,f_flags,f_name,f_dev_id))
> + pr_err("request_irq() on %s failed\n", f_name);
>
> [ don't get mislead by string contents used, this was for v1, just to
> show how the result was obtained. To take care of Finn's suggesstion,
> instead of modifying cocci & then making changes other changes over
> that (i could not fully automate w/ cocci, and Julia said my script
> is fine as is), it was easier to run sed over the v1 patches ]
>
>> And maybe would it be useful to print out the error return code from a
>> failed request_irq()?
>
> Since most of the existing setup_irq() didn't even check & handle
> error return, my first thought was just s/setup_irq/request_irq, it
> was easier from scripting pointing of view. i felt uncomfortable doing
> nothing in case of error. Also noted that request_irq() definition has
> a "__much_check", so decided to add it.
>
> And there is a wide variation in the way return value is handled by
> the caller, some already have a local variable, some don't. Moreover
> in many cases caller cannot return any value, i.e. void, so what
> to be done with return value was another issue, in some cases in
> addition to printing error value, the error value can't be returned,
> while some others it can.
>
>> What about displaying the requested IRQ number as well?
>> Just a thought.
>
> i initially did the cocci to display IRQ number as the 3rd arg to
> pr_err, but then it was observed that most of the those lines were
> exceeding 80 chars, though cocci could align args properly in next
> line, it could not put flower braces to the preceeding
> 'if request_irq()' & in next line (though it is a single C statement
> inside 'if', per kernel coding style, flower brace had to be put for a
> single statement that spans multiple lines ], else it had to be
> manually added treewide.
>
> On Wed, Feb 26, 2020 at 12:11:55PM +1100, Finn Thain wrote:
>
>> Moreover, compare this change,
>>
>> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
>> + request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
>>
>> with this change,
>>
>> + int err;
>>
>> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
>> + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
>> + if (err)
>> + return err;
>>
>> Isn't the latter change the more common pattern? It prints nothing.
>>
>> And arguably, the former example is actually the change that's described
>> in the commit description.
>>
>> This patch seems to be making two orthogonal changes but I'll leave that
>> question to the maintainer. (I'm not really trying to NAK this patch.)
>
> Instead of not checking the error value as in the existing cases &
> mechanically replace w/ request_irq(), thought of at least giving user
> the indication by way of pr_err (but i think most of the use is for
> tick timer, if it fails, in most cases, system would not even boot)
> due to the reasons mentioned above.
>
> On Wed, Feb 26, 2020 at 12:11:38PM +1000, Greg Ungerer wrote:
>
>> Hmm, in my experience the much more common pattern is:
>>
>>> + int err;
>>>
>>> - setup_irq(TMR_IRQ_NUM, &m68328_timer_irq);
>>> + err = request_irq(TMR_IRQ_NUM, hw_tick, IRQF_TIMER, "timer", NULL);
>>> + if (err) {
>>> + pr_err("timer: request_irq() failed with err=%d\n", err);
>>> + return err;
>>> + }
>
> This is my preferred style, but note that returning error is not
> possible in many of these cases as callers are void return type.
>
> On Wed, Feb 26, 2020 at 05:39:57PM +1100, Finn Thain wrote:
>
>> Besides, introducing local variables and altering control flow seems well
>> out-of-scope for this kind of refactoring, right?
>
> To make changes perfect, it would be required to get into context of
> each case (>150), and do it manually as there is wide variation like
> whether caller can return error code, whether already a local integer
> is defined to catch the error, whether it returns error after a goto,
> whether we should allow it to proceed if it fails and so on.
>
> And handling manually all the cases tree wide would be more error
> prone & time consuming. i was relieved that there was only one build
> error reported by test robot (i had done build & boot test only on ARM
> & x86_64), given the amount of manual changes i had to do on top of
> cocci generated ones.
>
> At the same time, i didn't want to just mechanically replace & wanted
> to add some value to the existing setup, which resulted in this patch.
>
> My thought process was to do treewide removal of setup_irq() and
> possibly low hanging cleanup's at the places where setup_irq() lives
> to make sure that surrounding situation will be better than or at
> least equal to the current.
Ok, makes sense. Given the very large tree-wide change I can see
why you wanted to completely automate it.
> But if the consensus is that all these situations have to be taken
> care, let me know.
>
> On Wed, Feb 26, 2020 at 10:26:55PM +1000, Greg Ungerer wrote:
>
>> A quick grep shows
>> that "%s: request_irq() failed\n" has no other exact matches in the current
>> kernel source.
>
> git grep -n '%s: request_irq' gives a few somewhat similar ones, i
> remember it because searching this string after my changes to verify
> gave more than that i added :)
Unfortunately similar strings won't be coalesced...
Regards
Greg
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-28 7:05 ` Greg Ungerer
@ 2020-02-29 12:47 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-29 12:47 UTC (permalink / raw)
To: Greg Ungerer
Cc: Finn Thain, linux-m68k, linux-kernel, Thomas Gleixner,
Geert Uytterhoeven
Hi Greg,
On Fri, Feb 28, 2020 at 05:05:36PM +1000, Greg Ungerer wrote:
> On 27/2/20 6:18 pm, afzal mohammed wrote:
> > On Wed, Feb 26, 2020 at 10:26:55PM +1000, Greg Ungerer wrote:
> > > A quick grep shows
> > > that "%s: request_irq() failed\n" has no other exact matches in the current
> > > kernel source.
> >
> > git grep -n '%s: request_irq' gives a few somewhat similar ones, i
> > remember it because searching this string after my changes to verify
> > gave more than that i added :)
>
> Unfortunately similar strings won't be coalesced...
Yes, sorry for that irrelevant comment, i didn't notice the context of
string coalescing w.r.t which you made that comment, my only excuse is
that i was drained by the end of writing that mail.
Regards
afzal
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-24 0:50 ` [PATCH v2 06/18] m68k: Replace " afzal mohammed
2020-02-26 0:42 ` Greg Ungerer
@ 2020-02-29 13:15 ` afzal mohammed
2020-02-29 23:11 ` Finn Thain
1 sibling, 1 reply; 78+ messages in thread
From: afzal mohammed @ 2020-02-29 13:15 UTC (permalink / raw)
To: linux-m68k, linux-kernel
Cc: Greg Ungerer, Thomas Gleixner, Geert Uytterhoeven, Finn Thain
Hi,
v3 has been posted w/ following changes,
1. Avoid unnecessary derefencing w.r.t irq name in pr_err
2. Modify pr_err() string so as to display in the form similar to,
"Failed to request irq 2 (cascade)"
3. More commit message massage
Above are based on tglx feedback & would be applied to all patches in
addition to rearranging as required in other patches for readability.
Specific to m68k, following changes has been made based on m68 family
;) feedback,
1. Catch the errror code & display the symbolic error name usin "%pe"
format specifier
2. irq # in pr_err (already covered by following pt 2 pattern above)
3. s/pr_err/pr_debug
No altering of control flow based on error value has been done.
Regards
afzal
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-29 13:15 ` afzal mohammed
@ 2020-02-29 23:11 ` Finn Thain
2020-03-01 1:05 ` afzal mohammed
0 siblings, 1 reply; 78+ messages in thread
From: Finn Thain @ 2020-02-29 23:11 UTC (permalink / raw)
To: afzal mohammed
Cc: linux-m68k, linux-kernel, Greg Ungerer, Thomas Gleixner,
Geert Uytterhoeven
On Sat, 29 Feb 2020, afzal mohammed wrote:
> [...]
> Specific to m68k, following changes has been made based on m68 family
> ;) feedback,
>
None of my comments were specific to any architecture.
Also, I am not the maintainer for the affected m68k code. Greg is.
> 3. s/pr_err/pr_debug
>
Please just ignore my opinion on that, since it contradicts the
maintainer's guidance/preference.
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-02-29 23:11 ` Finn Thain
@ 2020-03-01 1:05 ` afzal mohammed
2020-03-01 3:26 ` Finn Thain
0 siblings, 1 reply; 78+ messages in thread
From: afzal mohammed @ 2020-03-01 1:05 UTC (permalink / raw)
To: Finn Thain
Cc: linux-m68k, linux-kernel, Greg Ungerer, Thomas Gleixner,
Geert Uytterhoeven
Hi,
On Sun, Mar 01, 2020 at 10:11:51AM +1100, Finn Thain wrote:
> On Sat, 29 Feb 2020, afzal mohammed wrote:
> > [...]
> > Specific to m68k, following changes has been made based on m68 family
> > ;) feedback,
> >
>
> None of my comments were specific to any architecture.
One thing i had in my background, but realize now that didn't express
anywhere in my mails, in essence what Geert mentioned, i.e. being
legacy code, i did not give a treatment that would have been given to
adding new code.
But m68k subthread has been a very lively one and as not many changes,
felt it was not fair from my side not to handle almost as though it is
a new code addition.
There has been conflicting opinions, so i had to take a call one way
or other, including one against what i did not feel natural, mentioned
below, please let me know if further changes are required.
> > 3. s/pr_err/pr_debug
>
> Please just ignore my opinion on that, since it contradicts the
> maintainer's guidance/preference.
Yes, i will be remove this change.
Regards
afzal
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-03-01 1:05 ` afzal mohammed
@ 2020-03-01 3:26 ` Finn Thain
2020-03-01 6:13 ` afzal mohammed
0 siblings, 1 reply; 78+ messages in thread
From: Finn Thain @ 2020-03-01 3:26 UTC (permalink / raw)
To: afzal mohammed
Cc: linux-m68k, linux-kernel, Greg Ungerer, Thomas Gleixner,
Geert Uytterhoeven
On Sun, 1 Mar 2020, afzal mohammed wrote:
> On Sun, Mar 01, 2020 at 10:11:51AM +1100, Finn Thain wrote:
> > On Sat, 29 Feb 2020, afzal mohammed wrote:
>
> > > [...]
> > > Specific to m68k, following changes has been made based on m68 family
> > > ;) feedback,
> > >
> >
> > None of my comments were specific to any architecture.
>
> One thing i had in my background, but realize now that didn't express
> anywhere in my mails, in essence what Geert mentioned, i.e. being legacy
> code, i did not give a treatment that would have been given to adding
> new code.
>
> But m68k subthread has been a very lively one and as not many changes,
> felt it was not fair from my side not to handle almost as though it is a
> new code addition.
>
I took Geert's comments to be architecture agnostic but perhaps I
misunderstood.
BTW, how do you distinguish between "new code" and "legacy code"?
And why would you choose to do that when you are writing a tree-wide
semantic patch?
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-03-01 3:26 ` Finn Thain
@ 2020-03-01 6:13 ` afzal mohammed
2020-03-02 6:26 ` Finn Thain
0 siblings, 1 reply; 78+ messages in thread
From: afzal mohammed @ 2020-03-01 6:13 UTC (permalink / raw)
To: Finn Thain
Cc: linux-m68k, linux-kernel, Greg Ungerer, Thomas Gleixner,
Geert Uytterhoeven
Hi,
On Sun, Mar 01, 2020 at 02:26:33PM +1100, Finn Thain wrote:
> BTW, how do you distinguish between "new code" and "legacy code"?
setup_irq() was used in olden days, nowadays request_irq(). Though
there are exceptions of trying to use setup_irq() even recently, but
there has been pushback when people notice it like Thomas had done
[1], and i saw recently one in mips smp support series & suggested not
to use it (that code iiuc they had it out of upstream for a long time).
So existence of setup_irq() in general i have considered to be legacy
code.
> And why would you choose to do that when you are writing a tree-wide
> semantic patch?
The way i came up with this series is that while trying to understand
irq internals, came across [1], so then decided to do cleanup and i
thought scripting it would make it easy & also had been wanting to
get familiar w/ cocci, so decided to try it, but also realized that i
cannot fully automate it (Julia said my patch is okay, so i felt cocci
cannot fully automate w/o investing considerable effort in cocci), so
even w/ this v2, there are lot of manual changes, though cocci made it
easier.
> I took Geert's comments to be architecture agnostic but perhaps I
> misunderstood.
And Thomas suggested to make improvements over script generated o/p [2]
and only consider scripting as an initial first step. So the way i am
making changes now is to take suggestions from Thomas to be applied
treewide, at the same time also take care of suggestions from
arch/subsytem maintainer/mailing list in the relevant patches, since
arch maintainers are the ones owning it.
Sometimes had a feeling as though the changes in this series is akin
to cutting the foot to fit the shoe ;), but still went ahead as it was
legacy code, easier & less error prone. But now based on the overall
feedback, to proceed, i had to change.
Regards
afzal
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
[2] https://lore.kernel.org/lkml/87sgiwma3x.fsf@nanos.tec.linutronix.de/
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-03-01 6:13 ` afzal mohammed
@ 2020-03-02 6:26 ` Finn Thain
2020-03-04 1:24 ` afzal mohammed
0 siblings, 1 reply; 78+ messages in thread
From: Finn Thain @ 2020-03-02 6:26 UTC (permalink / raw)
To: afzal mohammed
Cc: linux-m68k, linux-kernel, Greg Ungerer, Thomas Gleixner,
Geert Uytterhoeven
On Sun, 1 Mar 2020, afzal mohammed wrote:
> Hi,
>
> On Sun, Mar 01, 2020 at 02:26:33PM +1100, Finn Thain wrote:
>
> > BTW, how do you distinguish between "new code" and "legacy code"?
>
> setup_irq() was used in olden days, nowadays request_irq(). Though there
> are exceptions of trying to use setup_irq() even recently, but there has
> been pushback when people notice it like Thomas had done [1], and i saw
> recently one in mips smp support series & suggested not to use it (that
> code iiuc they had it out of upstream for a long time).
>
> So existence of setup_irq() in general i have considered to be legacy
> code.
>
I see. You're defining "legacy code" in this case to mean code that uses a
deprecated API, that needs to be modernized.
> > And why would you choose to do that when you are writing a tree-wide
> > semantic patch?
>
> The way i came up with this series is that while trying to understand
> irq internals, came across [1], so then decided to do cleanup and i
> thought scripting it would make it easy & also had been wanting to get
> familiar w/ cocci, so decided to try it, but also realized that i cannot
> fully automate it (Julia said my patch is okay, so i felt cocci cannot
> fully automate w/o investing considerable effort in cocci), so even w/
> this v2, there are lot of manual changes, though cocci made it easier.
>
> > I took Geert's comments to be architecture agnostic but perhaps I
> > misunderstood.
>
> And Thomas suggested to make improvements over script generated o/p [2]
> and only consider scripting as an initial first step. So the way i am
> making changes now is to take suggestions from Thomas to be applied
> treewide, at the same time also take care of suggestions from
> arch/subsytem maintainer/mailing list in the relevant patches, since
> arch maintainers are the ones owning it.
>
Thanks for the detailed explanation.
I had assumed that your intention was to find a consensus so that the
whole tree could be consistently and automatically improved. My mistake.
> Sometimes had a feeling as though the changes in this series is akin to
> cutting the foot to fit the shoe ;), but still went ahead as it was
> legacy code, easier & less error prone. But now based on the overall
> feedback, to proceed, i had to change.
>
Not based on feedback from me I hope -- I have no veto in this case, as
you can see from MAINTAINERS.
> Regards
> afzal
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
> [2] https://lore.kernel.org/lkml/87sgiwma3x.fsf@nanos.tec.linutronix.de/
>
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 06/18] m68k: Replace setup_irq() by request_irq()
2020-03-02 6:26 ` Finn Thain
@ 2020-03-04 1:24 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-03-04 1:24 UTC (permalink / raw)
To: Finn Thain
Cc: linux-m68k, linux-kernel, Greg Ungerer, Thomas Gleixner,
Geert Uytterhoeven
Hi Finn,
On Mon, Mar 02, 2020 at 05:26:17PM +1100, Finn Thain wrote:
> I had assumed that your intention was to find a consensus so that the
> whole tree could be consistently and automatically improved
Yeah, my main goal was to get rid of setup_irq(), other things were
secondary and proceeded to achieve the removal by hook or crook, but was
caught red handed :)
> > Sometimes had a feeling as though the changes in this series is akin to
> > cutting the foot to fit the shoe ;), but still went ahead as it was
> > legacy code, easier & less error prone. But now based on the overall
> > feedback, to proceed, i had to change.
> >
>
> Not based on feedback from me I hope -- I have no veto in this case, as
> you can see from MAINTAINERS.
i don't know what to say, i attempted to accomodate the reviews as
much as possible, some times when opinions are conflicting i had to
take a call one way or the other, with more importance to maintainer's
view.
Regards
afzal
^ permalink raw reply [flat|nested] 78+ messages in thread
* [PATCH v2 07/18] microblaze: Replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (7 preceding siblings ...)
(?)
@ 2020-02-24 0:50 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:50 UTC (permalink / raw)
To: linux-kernel; +Cc: Michal Simek, Thomas Gleixner
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/microblaze/kernel/timer.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index a6683484b3a1..f8832cf49384 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -161,13 +161,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction timer_irqaction = {
- .handler = timer_interrupt,
- .flags = IRQF_TIMER,
- .name = "timer",
- .dev_id = &clockevent_xilinx_timer,
-};
-
static __init int xilinx_clockevent_init(void)
{
clockevent_xilinx_timer.mult =
@@ -309,7 +302,8 @@ static int __init xilinx_timer_init(struct device_node *timer)
freq_div_hz = timer_clock_freq / HZ;
- ret = setup_irq(irq, &timer_irqaction);
+ ret = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer",
+ &clockevent_xilinx_timer);
if (ret) {
pr_err("Failed to setup IRQ");
return ret;
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 08/18] MIPS: Replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
@ 2020-02-24 0:50 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:50 UTC (permalink / raw)
To: linux-mips, linux-kernel, linux-arm-kernel
Cc: Ralf Baechle, Paul Burton, Florian Fainelli,
bcm-kernel-feedback-list, Maciej W. Rozycki, Jiaxun Yang,
Keguang Zhang, Huacai Chen, John Crispin, Allison Randal,
Steve Winslow, Alexios Zavras, Greg Kroah-Hartman,
Richard Fontana, Thomas Gleixner, Kate Stewart, Arnd Bergmann,
Jilayne Lovejoy, Thomas Bogendoerfer, Yifeng Li, Paul Cercueil
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/mips/alchemy/common/time.c | 11 +---
arch/mips/ar7/irq.c | 18 +++---
arch/mips/ath25/ar2315.c | 9 +--
arch/mips/ath25/ar5312.c | 9 +--
arch/mips/bcm63xx/irq.c | 38 +++++-------
arch/mips/cobalt/irq.c | 14 ++---
arch/mips/dec/setup.c | 59 ++++++++-----------
arch/mips/emma/markeins/irq.c | 20 +++----
arch/mips/include/asm/sni.h | 2 +-
arch/mips/jazz/irq.c | 12 +---
arch/mips/kernel/cevt-bcm1480.c | 11 +---
arch/mips/kernel/cevt-ds1287.c | 9 +--
arch/mips/kernel/cevt-gt641xx.c | 9 +--
arch/mips/kernel/cevt-r4k.c | 4 +-
arch/mips/kernel/cevt-sb1250.c | 11 +---
arch/mips/kernel/cevt-txx9.c | 11 +---
arch/mips/kernel/i8253.c | 10 +---
arch/mips/kernel/rtlx-mt.c | 8 +--
arch/mips/kernel/smp.c | 33 ++++-------
arch/mips/lasat/interrupt.c | 10 +---
arch/mips/loongson2ef/common/bonito-irq.c | 9 +--
.../loongson2ef/common/cs5536/cs5536_mfgpt.c | 10 +---
arch/mips/loongson2ef/fuloong-2e/irq.c | 14 ++---
arch/mips/loongson2ef/lemote-2f/irq.c | 20 ++-----
arch/mips/loongson32/common/irq.c | 21 ++++---
arch/mips/loongson32/common/time.c | 12 ++--
arch/mips/loongson64/hpet.c | 10 +---
arch/mips/mti-malta/malta-int.c | 10 +---
arch/mips/netlogic/xlr/fmn.c | 9 +--
arch/mips/pmcs-msp71xx/msp_irq.c | 28 ++++-----
arch/mips/pmcs-msp71xx/msp_smp.c | 22 ++-----
arch/mips/pmcs-msp71xx/msp_time.c | 7 ++-
arch/mips/ralink/cevt-rt3352.c | 17 +++---
arch/mips/sgi-ip22/ip22-eisa.c | 8 +--
arch/mips/sgi-ip22/ip22-int.c | 49 +++++----------
arch/mips/sgi-ip32/ip32-irq.c | 18 ++----
arch/mips/sni/a20r.c | 4 +-
arch/mips/sni/irq.c | 8 +--
arch/mips/sni/pcit.c | 8 ++-
arch/mips/sni/rm200.c | 23 +++-----
arch/mips/sni/time.c | 10 +---
arch/mips/vr41xx/common/irq.c | 9 +--
42 files changed, 228 insertions(+), 406 deletions(-)
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 3a21a6a18da7..6ee13ccf1b03 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -72,13 +72,6 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = {
.cpumask = cpu_possible_mask,
};
-static struct irqaction au1x_rtcmatch2_irqaction = {
- .handler = au1x_rtcmatch2_irq,
- .flags = IRQF_TIMER,
- .name = "timer",
- .dev_id = &au1x_rtcmatch2_clockdev,
-};
-
static int __init alchemy_time_init(unsigned int m2int)
{
struct clock_event_device *cd = &au1x_rtcmatch2_clockdev;
@@ -130,7 +123,9 @@ static int __init alchemy_time_init(unsigned int m2int)
cd->min_delta_ns = clockevent_delta2ns(9, cd);
cd->min_delta_ticks = 9; /* ~0.28ms */
clockevents_register_device(cd);
- setup_irq(m2int, &au1x_rtcmatch2_irqaction);
+ if (request_irq(m2int, au1x_rtcmatch2_irq, IRQF_TIMER, "timer",
+ &au1x_rtcmatch2_clockdev))
+ pr_err("%s: request_irq() failed\n", "timer");
printk(KERN_INFO "Alchemy clocksource installed\n");
diff --git a/arch/mips/ar7/irq.c b/arch/mips/ar7/irq.c
index 93a331fe0641..b479e22b7a20 100644
--- a/arch/mips/ar7/irq.c
+++ b/arch/mips/ar7/irq.c
@@ -83,12 +83,6 @@ static struct irq_chip ar7_sec_irq_type = {
.irq_ack = ar7_ack_sec_irq,
};
-static struct irqaction ar7_cascade_action = {
- .handler = no_action,
- .name = "AR7 cascade interrupt",
- .flags = IRQF_NO_THREAD,
-};
-
static void __init ar7_irq_init(int base)
{
int i;
@@ -116,8 +110,16 @@ static void __init ar7_irq_init(int base)
handle_level_irq);
}
- setup_irq(2, &ar7_cascade_action);
- setup_irq(ar7_irq_base, &ar7_cascade_action);
+ if (request_irq(2, no_action, IRQF_NO_THREAD, "AR7 cascade interrupt",
+ NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "AR7 cascade interrupt");
+ }
+ if (request_irq(ar7_irq_base, no_action, IRQF_NO_THREAD,
+ "AR7 cascade interrupt", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "AR7 cascade interrupt");
+ }
set_c0_status(IE_IRQ0);
}
diff --git a/arch/mips/ath25/ar2315.c b/arch/mips/ath25/ar2315.c
index 24f619199ee7..7104b287cb70 100644
--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
@@ -64,11 +64,6 @@ static irqreturn_t ar2315_ahb_err_handler(int cpl, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ar2315_ahb_err_interrupt = {
- .handler = ar2315_ahb_err_handler,
- .name = "ar2315-ahb-error",
-};
-
static void ar2315_misc_irq_handler(struct irq_desc *desc)
{
u32 pending = ar2315_rst_reg_read(AR2315_ISR) &
@@ -159,7 +154,9 @@ void __init ar2315_arch_init_irq(void)
panic("Failed to add IRQ domain");
irq = irq_create_mapping(domain, AR2315_MISC_IRQ_AHB);
- setup_irq(irq, &ar2315_ahb_err_interrupt);
+ if (request_irq(irq, ar2315_ahb_err_handler, 0, "ar2315-ahb-error",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "ar2315-ahb-error");
irq_set_chained_handler_and_data(AR2315_IRQ_MISC,
ar2315_misc_irq_handler, domain);
diff --git a/arch/mips/ath25/ar5312.c b/arch/mips/ath25/ar5312.c
index 47f3e98974fc..e8b9477770b2 100644
--- a/arch/mips/ath25/ar5312.c
+++ b/arch/mips/ath25/ar5312.c
@@ -68,11 +68,6 @@ static irqreturn_t ar5312_ahb_err_handler(int cpl, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ar5312_ahb_err_interrupt = {
- .handler = ar5312_ahb_err_handler,
- .name = "ar5312-ahb-error",
-};
-
static void ar5312_misc_irq_handler(struct irq_desc *desc)
{
u32 pending = ar5312_rst_reg_read(AR5312_ISR) &
@@ -154,7 +149,9 @@ void __init ar5312_arch_init_irq(void)
panic("Failed to add IRQ domain");
irq = irq_create_mapping(domain, AR5312_MISC_IRQ_AHB_PROC);
- setup_irq(irq, &ar5312_ahb_err_interrupt);
+ if (request_irq(irq, ar5312_ahb_err_handler, 0, "ar5312-ahb-error",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "ar5312-ahb-error");
irq_set_chained_handler_and_data(AR5312_IRQ_MISC,
ar5312_misc_irq_handler, domain);
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index ec694b9628c0..a3f6cec8b966 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -399,26 +399,6 @@ static struct irq_chip bcm63xx_external_irq_chip = {
.irq_set_type = bcm63xx_external_irq_set_type,
};
-static struct irqaction cpu_ip2_cascade_action = {
- .handler = no_action,
- .name = "cascade_ip2",
- .flags = IRQF_NO_THREAD,
-};
-
-#ifdef CONFIG_SMP
-static struct irqaction cpu_ip3_cascade_action = {
- .handler = no_action,
- .name = "cascade_ip3",
- .flags = IRQF_NO_THREAD,
-};
-#endif
-
-static struct irqaction cpu_ext_cascade_action = {
- .handler = no_action,
- .name = "cascade_extirq",
- .flags = IRQF_NO_THREAD,
-};
-
static void bcm63xx_init_irq(void)
{
int irq_bits;
@@ -544,14 +524,24 @@ void __init arch_init_irq(void)
handle_edge_irq);
if (!is_ext_irq_cascaded) {
- for (i = 3; i < 3 + ext_irq_count; ++i)
- setup_irq(MIPS_CPU_IRQ_BASE + i, &cpu_ext_cascade_action);
+ for (i = 3; i < 3 + ext_irq_count; ++i) {
+ if (request_irq(MIPS_CPU_IRQ_BASE + i, no_action,
+ IRQF_NO_THREAD, "cascade_extirq",
+ NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "cascade_extirq");
+ }
+ }
}
- setup_irq(MIPS_CPU_IRQ_BASE + 2, &cpu_ip2_cascade_action);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 2, no_action, IRQF_NO_THREAD,
+ "cascade_ip2", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade_ip2");
#ifdef CONFIG_SMP
if (is_ext_irq_cascaded) {
- setup_irq(MIPS_CPU_IRQ_BASE + 3, &cpu_ip3_cascade_action);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 3, no_action,
+ IRQF_NO_THREAD, "cascade_ip3", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade_ip3");
bcm63xx_internal_irq_chip.irq_set_affinity =
bcm63xx_internal_set_affinity;
diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c
index 965c777d3561..dc0bb48a3545 100644
--- a/arch/mips/cobalt/irq.c
+++ b/arch/mips/cobalt/irq.c
@@ -45,18 +45,16 @@ asmlinkage void plat_irq_dispatch(void)
spurious_interrupt();
}
-static struct irqaction cascade = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
void __init arch_init_irq(void)
{
mips_cpu_irq_init();
gt641xx_irq_init();
init_i8259_irqs();
- setup_irq(GT641XX_CASCADE_IRQ, &cascade);
- setup_irq(I8259_CASCADE_IRQ, &cascade);
+ if (request_irq(GT641XX_CASCADE_IRQ, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(I8259_CASCADE_IRQ, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index 61a0bf13e308..e554db3838d7 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -103,28 +103,8 @@ int_ptr asic_mask_nr_tbl[DEC_MAX_ASIC_INTS][2] = {
int cpu_fpu_mask = DEC_CPU_IRQ_MASK(DEC_CPU_INR_FPU);
int *fpu_kstat_irq;
-static struct irqaction ioirq = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-static struct irqaction fpuirq = {
- .handler = no_action,
- .name = "fpu",
- .flags = IRQF_NO_THREAD,
-};
-
-static struct irqaction busirq = {
- .name = "bus error",
- .flags = IRQF_NO_THREAD,
-};
-
-static struct irqaction haltirq = {
- .handler = dec_intr_halt,
- .name = "halt",
- .flags = IRQF_NO_THREAD,
-};
-
+static irq_handler_t busirq_handler;
+static unsigned int busirq_flags = IRQF_NO_THREAD;
/*
* Bus error (DBE/IBE exceptions and bus interrupts) handling setup.
@@ -134,21 +114,21 @@ static void __init dec_be_init(void)
switch (mips_machtype) {
case MACH_DS23100: /* DS2100/DS3100 Pmin/Pmax */
board_be_handler = dec_kn01_be_handler;
- busirq.handler = dec_kn01_be_interrupt;
- busirq.flags |= IRQF_SHARED;
+ busirq_handler = dec_kn01_be_interrupt;
+ busirq_flags |= IRQF_SHARED;
dec_kn01_be_init();
break;
case MACH_DS5000_1XX: /* DS5000/1xx 3min */
case MACH_DS5000_XX: /* DS5000/xx Maxine */
board_be_handler = dec_kn02xa_be_handler;
- busirq.handler = dec_kn02xa_be_interrupt;
+ busirq_handler = dec_kn02xa_be_interrupt;
dec_kn02xa_be_init();
break;
case MACH_DS5000_200: /* DS5000/200 3max */
case MACH_DS5000_2X0: /* DS5000/240 3max+ */
case MACH_DS5900: /* DS5900 bigmax */
board_be_handler = dec_ecc_be_handler;
- busirq.handler = dec_ecc_be_interrupt;
+ busirq_handler = dec_ecc_be_interrupt;
dec_ecc_be_init();
break;
}
@@ -764,20 +744,29 @@ void __init arch_init_irq(void)
int irq_fpu;
irq_fpu = dec_interrupt[DEC_IRQ_FPU];
- setup_irq(irq_fpu, &fpuirq);
+ if (request_irq(irq_fpu, no_action, IRQF_NO_THREAD, "fpu",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "fpu");
desc_fpu = irq_to_desc(irq_fpu);
fpu_kstat_irq = this_cpu_ptr(desc_fpu->kstat_irqs);
}
- if (dec_interrupt[DEC_IRQ_CASCADE] >= 0)
- setup_irq(dec_interrupt[DEC_IRQ_CASCADE], &ioirq);
-
+ if (dec_interrupt[DEC_IRQ_CASCADE] >= 0) {
+ if (request_irq(dec_interrupt[DEC_IRQ_CASCADE], no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ }
/* Register the bus error interrupt. */
- if (dec_interrupt[DEC_IRQ_BUS] >= 0 && busirq.handler)
- setup_irq(dec_interrupt[DEC_IRQ_BUS], &busirq);
-
+ if (dec_interrupt[DEC_IRQ_BUS] >= 0 && busirq_handler) {
+ if (request_irq(dec_interrupt[DEC_IRQ_BUS], busirq_handler,
+ busirq_flags, "bus error", NULL))
+ pr_err("%s: request_irq() failed\n", "bus error");
+ }
/* Register the HALT interrupt. */
- if (dec_interrupt[DEC_IRQ_HALT] >= 0)
- setup_irq(dec_interrupt[DEC_IRQ_HALT], &haltirq);
+ if (dec_interrupt[DEC_IRQ_HALT] >= 0) {
+ if (request_irq(dec_interrupt[DEC_IRQ_HALT], dec_intr_halt,
+ IRQF_NO_THREAD, "halt", NULL))
+ pr_err("%s: request_irq() failed\n", "halt");
+ }
}
asmlinkage unsigned int dec_irq_dispatch(unsigned int irq)
diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c
index 09427a49e7ae..cae623a03db3 100644
--- a/arch/mips/emma/markeins/irq.c
+++ b/arch/mips/emma/markeins/irq.c
@@ -153,14 +153,6 @@ void emma2rh_gpio_irq_init(void)
handle_edge_irq, "edge");
}
-static struct irqaction irq_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "cascade",
- .dev_id = NULL,
- .next = NULL,
-};
-
/*
* the first level int-handler will jump here if it is a emma2rh irq
*/
@@ -272,9 +264,15 @@ void __init arch_init_irq(void)
mips_cpu_irq_init();
/* setup cascade interrupts */
- setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE, &irq_cascade);
- setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_GPIO_CASCADE, &irq_cascade);
- setup_irq(MIPS_CPU_IRQ_BASE + 2, &irq_cascade);
+ if (request_irq(EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE, no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(EMMA2RH_IRQ_BASE + EMMA2RH_GPIO_CASCADE, no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(MIPS_CPU_IRQ_BASE + 2, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
asmlinkage void plat_irq_dispatch(void)
diff --git a/arch/mips/include/asm/sni.h b/arch/mips/include/asm/sni.h
index a107201a2e1e..b8653de25ca1 100644
--- a/arch/mips/include/asm/sni.h
+++ b/arch/mips/include/asm/sni.h
@@ -239,6 +239,6 @@ static inline int sni_eisa_root_init(void)
/* common irq stuff */
extern void (*sni_hwint)(void);
-extern struct irqaction sni_isa_irq;
+extern irqreturn_t sni_isa_irq_handler(int dummy, void *p);
#endif /* __ASM_SNI_H */
diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c
index 5d6828b2a750..72c4ce0a3828 100644
--- a/arch/mips/jazz/irq.c
+++ b/arch/mips/jazz/irq.c
@@ -125,24 +125,18 @@ static irqreturn_t r4030_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction r4030_timer_irqaction = {
- .handler = r4030_timer_interrupt,
- .flags = IRQF_TIMER,
- .name = "R4030 timer",
-};
-
void __init plat_time_init(void)
{
struct clock_event_device *cd = &r4030_clockevent;
- struct irqaction *action = &r4030_timer_irqaction;
unsigned int cpu = smp_processor_id();
BUG_ON(HZ != 100);
cd->cpumask = cpumask_of(cpu);
clockevents_register_device(cd);
- action->dev_id = cd;
- setup_irq(JAZZ_TIMER_IRQ, action);
+ if (request_irq(JAZZ_TIMER_IRQ, r4030_timer_interrupt, IRQF_TIMER,
+ "R4030 timer", cd))
+ pr_err("%s: request_irq() failed\n", "R4030 timer");
/*
* Set clock to 100Hz.
diff --git a/arch/mips/kernel/cevt-bcm1480.c b/arch/mips/kernel/cevt-bcm1480.c
index b3e8c11a8fa5..03cf35d7b873 100644
--- a/arch/mips/kernel/cevt-bcm1480.c
+++ b/arch/mips/kernel/cevt-bcm1480.c
@@ -91,14 +91,12 @@ static irqreturn_t sibyte_counter_handler(int irq, void *dev_id)
}
static DEFINE_PER_CPU(struct clock_event_device, sibyte_hpt_clockevent);
-static DEFINE_PER_CPU(struct irqaction, sibyte_hpt_irqaction);
static DEFINE_PER_CPU(char [18], sibyte_hpt_name);
void sb1480_clockevent_init(void)
{
unsigned int cpu = smp_processor_id();
unsigned int irq = K_BCM1480_INT_TIMER_0 + cpu;
- struct irqaction *action = &per_cpu(sibyte_hpt_irqaction, cpu);
struct clock_event_device *cd = &per_cpu(sibyte_hpt_clockevent, cpu);
unsigned char *name = per_cpu(sibyte_hpt_name, cpu);
@@ -133,11 +131,8 @@ void sb1480_clockevent_init(void)
bcm1480_unmask_irq(cpu, irq);
- action->handler = sibyte_counter_handler;
- action->flags = IRQF_PERCPU | IRQF_TIMER;
- action->name = name;
- action->dev_id = cd;
-
irq_set_affinity(irq, cpumask_of(cpu));
- setup_irq(irq, action);
+ if (request_irq(irq, sibyte_counter_handler, IRQF_PERCPU | IRQF_TIMER,
+ name, cd))
+ pr_err("%s: request_irq() failed\n", name);
}
diff --git a/arch/mips/kernel/cevt-ds1287.c b/arch/mips/kernel/cevt-ds1287.c
index 1e1edab4a63f..9b855257fc65 100644
--- a/arch/mips/kernel/cevt-ds1287.c
+++ b/arch/mips/kernel/cevt-ds1287.c
@@ -100,12 +100,6 @@ static irqreturn_t ds1287_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ds1287_irqaction = {
- .handler = ds1287_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .name = "ds1287",
-};
-
int __init ds1287_clockevent_init(int irq)
{
struct clock_event_device *cd;
@@ -122,5 +116,6 @@ int __init ds1287_clockevent_init(int irq)
clockevents_register_device(&ds1287_clockevent);
- return setup_irq(irq, &ds1287_irqaction);
+ return request_irq(irq, ds1287_interrupt, IRQF_PERCPU | IRQF_TIMER,
+ "ds1287", NULL);
}
diff --git a/arch/mips/kernel/cevt-gt641xx.c b/arch/mips/kernel/cevt-gt641xx.c
index eb53548d2538..5b132e8c51da 100644
--- a/arch/mips/kernel/cevt-gt641xx.c
+++ b/arch/mips/kernel/cevt-gt641xx.c
@@ -120,12 +120,6 @@ static irqreturn_t gt641xx_timer0_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction gt641xx_timer0_irqaction = {
- .handler = gt641xx_timer0_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .name = "gt641xx_timer0",
-};
-
static int __init gt641xx_timer0_clockevent_init(void)
{
struct clock_event_device *cd;
@@ -146,6 +140,7 @@ static int __init gt641xx_timer0_clockevent_init(void)
clockevents_register_device(>641xx_timer0_clockevent);
- return setup_irq(GT641XX_TIMER0_IRQ, >641xx_timer0_irqaction);
+ return request_irq(GT641XX_TIMER0_IRQ, gt641xx_timer0_interrupt,
+ IRQF_PERCPU | IRQF_TIMER, "gt641xx_timer0", NULL);
}
arch_initcall(gt641xx_timer0_clockevent_init);
diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
index dd6a18bc10ab..9adeb40bd648 100644
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -291,7 +291,9 @@ int r4k_clockevent_init(void)
cp0_timer_irq_installed = 1;
- setup_irq(irq, &c0_compare_irqaction);
+ if (request_irq(irq, c0_compare_interrupt,
+ IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
return 0;
}
diff --git a/arch/mips/kernel/cevt-sb1250.c b/arch/mips/kernel/cevt-sb1250.c
index e1a08606c27e..43917eb0219b 100644
--- a/arch/mips/kernel/cevt-sb1250.c
+++ b/arch/mips/kernel/cevt-sb1250.c
@@ -90,14 +90,12 @@ static irqreturn_t sibyte_counter_handler(int irq, void *dev_id)
}
static DEFINE_PER_CPU(struct clock_event_device, sibyte_hpt_clockevent);
-static DEFINE_PER_CPU(struct irqaction, sibyte_hpt_irqaction);
static DEFINE_PER_CPU(char [18], sibyte_hpt_name);
void sb1250_clockevent_init(void)
{
unsigned int cpu = smp_processor_id();
unsigned int irq = K_INT_TIMER_0 + cpu;
- struct irqaction *action = &per_cpu(sibyte_hpt_irqaction, cpu);
struct clock_event_device *cd = &per_cpu(sibyte_hpt_clockevent, cpu);
unsigned char *name = per_cpu(sibyte_hpt_name, cpu);
@@ -133,11 +131,8 @@ void sb1250_clockevent_init(void)
sb1250_unmask_irq(cpu, irq);
- action->handler = sibyte_counter_handler;
- action->flags = IRQF_PERCPU | IRQF_TIMER;
- action->name = name;
- action->dev_id = cd;
-
irq_set_affinity(irq, cpumask_of(cpu));
- setup_irq(irq, action);
+ if (request_irq(irq, sibyte_counter_handler, IRQF_PERCPU | IRQF_TIMER,
+ name, cd))
+ pr_err("%s: request_irq() failed\n", name);
}
diff --git a/arch/mips/kernel/cevt-txx9.c b/arch/mips/kernel/cevt-txx9.c
index 7b17c8f5009d..24de43342866 100644
--- a/arch/mips/kernel/cevt-txx9.c
+++ b/arch/mips/kernel/cevt-txx9.c
@@ -174,13 +174,6 @@ static irqreturn_t txx9tmr_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction txx9tmr_irq = {
- .handler = txx9tmr_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .name = "txx9tmr",
- .dev_id = &txx9_clock_event_device,
-};
-
void __init txx9_clockevent_init(unsigned long baseaddr, int irq,
unsigned int imbusclk)
{
@@ -202,7 +195,9 @@ void __init txx9_clockevent_init(unsigned long baseaddr, int irq,
cd->irq = irq;
cd->cpumask = cpumask_of(0),
clockevents_register_device(cd);
- setup_irq(irq, &txx9tmr_irq);
+ if (request_irq(irq, txx9tmr_interrupt, IRQF_PERCPU | IRQF_TIMER,
+ "txx9tmr", &txx9_clock_event_device))
+ pr_err("%s: request_irq() failed\n", "txx9tmr");
printk(KERN_INFO "TXx9: clockevent device at 0x%lx, irq %d\n",
baseaddr, irq);
}
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index df7ddd246eaa..4ab4cd713c02 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -18,16 +18,12 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq0 = {
- .handler = timer_interrupt,
- .flags = IRQF_NOBALANCING | IRQF_TIMER,
- .name = "timer"
-};
-
void __init setup_pit_timer(void)
{
clockevent_i8253_init(true);
- setup_irq(0, &irq0);
+ if (request_irq(0, timer_interrupt, IRQF_NOBALANCING | IRQF_TIMER,
+ "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
}
static int __init init_pit_clocksource(void)
diff --git a/arch/mips/kernel/rtlx-mt.c b/arch/mips/kernel/rtlx-mt.c
index cb95470e2e69..38c6925a1bea 100644
--- a/arch/mips/kernel/rtlx-mt.c
+++ b/arch/mips/kernel/rtlx-mt.c
@@ -51,11 +51,6 @@ static irqreturn_t rtlx_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction rtlx_irq = {
- .handler = rtlx_interrupt,
- .name = "RTLX",
-};
-
static int rtlx_irq_num = MIPS_CPU_IRQ_BASE + MIPS_CPU_RTLX_IRQ;
void _interrupt_sp(void)
@@ -124,8 +119,7 @@ int __init rtlx_module_init(void)
goto out_class;
}
- rtlx_irq.dev_id = rtlx;
- err = setup_irq(rtlx_irq_num, &rtlx_irq);
+ err = request_irq(rtlx_irq_num, rtlx_interrupt, 0, "RTLX", rtlx);
if (err)
goto out_class;
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index f510c00bda88..d0e911f2421b 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -207,25 +207,13 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq_resched = {
- .handler = ipi_resched_interrupt,
- .flags = IRQF_PERCPU,
- .name = "IPI resched"
-};
-
-static struct irqaction irq_call = {
- .handler = ipi_call_interrupt,
- .flags = IRQF_PERCPU,
- .name = "IPI call"
-};
-
-static void smp_ipi_init_one(unsigned int virq,
- struct irqaction *action)
+static void smp_ipi_init_one(unsigned int virq, const char *name,
+ irq_handler_t handler)
{
int ret;
irq_set_handler(virq, handle_percpu_irq);
- ret = setup_irq(virq, action);
+ ret = request_irq(virq, handler, IRQF_PERCPU, name, NULL);
BUG_ON(ret);
}
@@ -278,12 +266,15 @@ int mips_smp_ipi_allocate(const struct cpumask *mask)
int cpu;
for_each_cpu(cpu, mask) {
- smp_ipi_init_one(call_virq + cpu, &irq_call);
- smp_ipi_init_one(sched_virq + cpu, &irq_resched);
+ smp_ipi_init_one(call_virq + cpu, "IPI call",
+ ipi_call_interrupt);
+ smp_ipi_init_one(sched_virq + cpu, "IPI resched",
+ ipi_resched_interrupt);
}
} else {
- smp_ipi_init_one(call_virq, &irq_call);
- smp_ipi_init_one(sched_virq, &irq_resched);
+ smp_ipi_init_one(call_virq, "IPI call", ipi_call_interrupt);
+ smp_ipi_init_one(sched_virq, "IPI resched",
+ ipi_resched_interrupt);
}
return 0;
@@ -311,8 +302,8 @@ int mips_smp_ipi_free(const struct cpumask *mask)
int cpu;
for_each_cpu(cpu, mask) {
- remove_irq(call_virq + cpu, &irq_call);
- remove_irq(sched_virq + cpu, &irq_resched);
+ free_irq(call_virq + cpu, NULL);
+ free_irq(sched_virq + cpu, NULL);
}
}
irq_destroy_ipi(call_virq, mask);
diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c
index 0f3a8975081d..0c2308b7d184 100644
--- a/arch/mips/lasat/interrupt.c
+++ b/arch/mips/lasat/interrupt.c
@@ -90,12 +90,6 @@ asmlinkage void plat_irq_dispatch(void)
}
}
-static struct irqaction cascade = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
void __init arch_init_irq(void)
{
int i;
@@ -119,5 +113,7 @@ void __init arch_init_irq(void)
for (i = LASAT_IRQ_BASE; i <= LASAT_IRQ_END; i++)
irq_set_chip_and_handler(i, &lasat_irq_type, handle_level_irq);
- setup_irq(LASAT_CASCADE_IRQ, &cascade);
+ if (request_irq(LASAT_CASCADE_IRQ, no_action, IRQF_NO_THREAD, "cascade",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/mips/loongson2ef/common/bonito-irq.c b/arch/mips/loongson2ef/common/bonito-irq.c
index 82352cc25e4c..03cb9bf4dfef 100644
--- a/arch/mips/loongson2ef/common/bonito-irq.c
+++ b/arch/mips/loongson2ef/common/bonito-irq.c
@@ -30,11 +30,6 @@ static struct irq_chip bonito_irq_type = {
.irq_unmask = bonito_irq_enable,
};
-static struct irqaction __maybe_unused dma_timeout_irqaction = {
- .handler = no_action,
- .name = "dma_timeout",
-};
-
void bonito_irq_init(void)
{
u32 i;
@@ -44,6 +39,8 @@ void bonito_irq_init(void)
handle_level_irq);
#ifdef CONFIG_CPU_LOONGSON2E
- setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction);
+ if (request_irq(LOONGSON_IRQ_BASE + 10, no_action, 0, "dma_timeout",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "dma_timeout");
#endif
}
diff --git a/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c b/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c
index 30af1b7c7529..9144e6048640 100644
--- a/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c
+++ b/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c
@@ -100,12 +100,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq5 = {
- .handler = timer_interrupt,
- .flags = IRQF_NOBALANCING | IRQF_TIMER,
- .name = "timer"
-};
-
/*
* Initialize the conversion factor and the min/max deltas of the clock event
* structure and register the clock event source with the framework.
@@ -134,7 +128,9 @@ void __init setup_mfgpt0_timer(void)
clockevents_register_device(cd);
- setup_irq(CS5536_MFGPT_INTR, &irq5);
+ if (request_irq(CS5536_MFGPT_INTR, timer_interrupt,
+ IRQF_NOBALANCING | IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
}
/*
diff --git a/arch/mips/loongson2ef/fuloong-2e/irq.c b/arch/mips/loongson2ef/fuloong-2e/irq.c
index 32278e7bf85c..194aa1c9d836 100644
--- a/arch/mips/loongson2ef/fuloong-2e/irq.c
+++ b/arch/mips/loongson2ef/fuloong-2e/irq.c
@@ -35,12 +35,6 @@ asmlinkage void mach_irq_dispatch(unsigned int pending)
spurious_interrupt();
}
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
void __init mach_init_irq(void)
{
/* init all controller
@@ -59,7 +53,11 @@ void __init mach_init_irq(void)
bonito_irq_init();
/* bonito irq at IP2 */
- setup_irq(MIPS_CPU_IRQ_BASE + 2, &cascade_irqaction);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 2, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
/* 8259 irq at IP5 */
- setup_irq(MIPS_CPU_IRQ_BASE + 5, &cascade_irqaction);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 5, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/mips/loongson2ef/lemote-2f/irq.c b/arch/mips/loongson2ef/lemote-2f/irq.c
index c58a044c6c07..57c5f4e87ac1 100644
--- a/arch/mips/loongson2ef/lemote-2f/irq.c
+++ b/arch/mips/loongson2ef/lemote-2f/irq.c
@@ -90,18 +90,6 @@ static irqreturn_t ip6_action(int cpl, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ip6_irqaction = {
- .handler = ip6_action,
- .name = "cascade",
- .flags = IRQF_SHARED | IRQF_NO_THREAD,
-};
-
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD | IRQF_NO_SUSPEND,
-};
-
void __init mach_init_irq(void)
{
/* init all controller
@@ -120,7 +108,11 @@ void __init mach_init_irq(void)
bonito_irq_init();
/* setup north bridge irq (bonito) */
- setup_irq(LOONGSON_NORTH_BRIDGE_IRQ, &ip6_irqaction);
+ if (request_irq(LOONGSON_NORTH_BRIDGE_IRQ, ip6_action,
+ IRQF_SHARED | IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
/* setup source bridge irq (i8259) */
- setup_irq(LOONGSON_SOUTH_BRIDGE_IRQ, &cascade_irqaction);
+ if (request_irq(LOONGSON_SOUTH_BRIDGE_IRQ, no_action,
+ IRQF_NO_THREAD | IRQF_NO_SUSPEND, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/mips/loongson32/common/irq.c b/arch/mips/loongson32/common/irq.c
index 168d221d4178..c86553200e3a 100644
--- a/arch/mips/loongson32/common/irq.c
+++ b/arch/mips/loongson32/common/irq.c
@@ -149,12 +149,6 @@ asmlinkage void plat_irq_dispatch(void)
}
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
static void __init ls1x_irq_init(int base)
{
int n;
@@ -176,12 +170,17 @@ static void __init ls1x_irq_init(int base)
handle_level_irq);
}
- setup_irq(INT0_IRQ, &cascade_irqaction);
- setup_irq(INT1_IRQ, &cascade_irqaction);
- setup_irq(INT2_IRQ, &cascade_irqaction);
- setup_irq(INT3_IRQ, &cascade_irqaction);
+ if (request_irq(INT0_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(INT1_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(INT2_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(INT3_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
#if defined(CONFIG_LOONGSON1_LS1C)
- setup_irq(INT4_IRQ, &cascade_irqaction);
+ if (request_irq(INT4_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
#endif
}
diff --git a/arch/mips/loongson32/common/time.c b/arch/mips/loongson32/common/time.c
index 4cc73f7ac0d4..0b2dd04c9ed0 100644
--- a/arch/mips/loongson32/common/time.c
+++ b/arch/mips/loongson32/common/time.c
@@ -176,13 +176,6 @@ static struct clock_event_device ls1x_clockevent = {
.tick_resume = ls1x_clockevent_tick_resume,
};
-static struct irqaction ls1x_pwmtimer_irqaction = {
- .name = "ls1x-pwmtimer",
- .handler = ls1x_clockevent_isr,
- .dev_id = &ls1x_clockevent,
- .flags = IRQF_PERCPU | IRQF_TIMER,
-};
-
static void __init ls1x_time_init(void)
{
struct clock_event_device *cd = &ls1x_clockevent;
@@ -206,7 +199,10 @@ static void __init ls1x_time_init(void)
if (ret)
panic(KERN_ERR "Failed to register clocksource: %d\n", ret);
- setup_irq(LS1X_TIMER_IRQ, &ls1x_pwmtimer_irqaction);
+ if (request_irq(LS1X_TIMER_IRQ, ls1x_clockevent_isr,
+ IRQF_PERCPU | IRQF_TIMER, "ls1x-pwmtimer",
+ &ls1x_clockevent))
+ pr_err("%s: request_irq() failed\n", "ls1x-pwmtimer");
}
#endif /* CONFIG_CEVT_CSRC_LS1X */
diff --git a/arch/mips/loongson64/hpet.c b/arch/mips/loongson64/hpet.c
index ed15430ad64f..39c770c06c18 100644
--- a/arch/mips/loongson64/hpet.c
+++ b/arch/mips/loongson64/hpet.c
@@ -187,12 +187,6 @@ static irqreturn_t hpet_irq_handler(int irq, void *data)
return IRQ_NONE;
}
-static struct irqaction hpet_irq = {
- .handler = hpet_irq_handler,
- .flags = IRQF_NOBALANCING | IRQF_TIMER,
- .name = "hpet",
-};
-
/*
* hpet address assignation and irq setting should be done in bios.
* but pmon don't do this, we just setup here directly.
@@ -247,7 +241,9 @@ void __init setup_hpet_timer(void)
cd->min_delta_ticks = HPET_MIN_PROG_DELTA;
clockevents_register_device(cd);
- setup_irq(HPET_T0_IRQ, &hpet_irq);
+ if (request_irq(HPET_T0_IRQ, hpet_irq_handler,
+ IRQF_NOBALANCING | IRQF_TIMER, "hpet", NULL))
+ pr_err("%s: request_irq() failed\n", "hpet");
pr_info("hpet clock event device register\n");
}
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index a840e0c1642c..ad9eabca53d3 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -144,12 +144,6 @@ static irqreturn_t corehi_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction corehi_irqaction = {
- .handler = corehi_handler,
- .name = "CoreHi",
- .flags = IRQF_NO_THREAD,
-};
-
static msc_irqmap_t msc_irqmap[] __initdata = {
{MSC01C_INT_TMR, MSC01_IRQ_EDGE, 0},
{MSC01C_INT_PCI, MSC01_IRQ_LEVEL, 0},
@@ -223,5 +217,7 @@ void __init arch_init_irq(void)
corehi_irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_COREHI;
}
- setup_irq(corehi_irq, &corehi_irqaction);
+ if (request_irq(corehi_irq, corehi_handler, IRQF_NO_THREAD, "CoreHi",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "CoreHi");
}
diff --git a/arch/mips/netlogic/xlr/fmn.c b/arch/mips/netlogic/xlr/fmn.c
index d428e8471eec..c7441e728d83 100644
--- a/arch/mips/netlogic/xlr/fmn.c
+++ b/arch/mips/netlogic/xlr/fmn.c
@@ -110,12 +110,6 @@ static irqreturn_t fmn_message_handler(int irq, void *data)
return IRQ_HANDLED;
}
-struct irqaction fmn_irqaction = {
- .handler = fmn_message_handler,
- .flags = IRQF_PERCPU,
- .name = "fmn",
-};
-
void xlr_percpu_fmn_init(void)
{
struct xlr_fmn_info *cpu_fmn_info;
@@ -196,7 +190,8 @@ void nlm_setup_fmn_irq(void)
uint32_t flags;
/* setup irq only once */
- setup_irq(IRQ_FMN, &fmn_irqaction);
+ if (request_irq(IRQ_FMN, fmn_message_handler, IRQF_PERCPU, "fmn", NULL))
+ pr_err("%s: request_irq() failed\n", "fmn");
flags = nlm_cop2_enable_irqsave();
nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1);
diff --git a/arch/mips/pmcs-msp71xx/msp_irq.c b/arch/mips/pmcs-msp71xx/msp_irq.c
index 8d53d7a2ed45..e3f6d509b8b9 100644
--- a/arch/mips/pmcs-msp71xx/msp_irq.c
+++ b/arch/mips/pmcs-msp71xx/msp_irq.c
@@ -107,18 +107,6 @@ asmlinkage void plat_irq_dispatch(void)
do_IRQ(MSP_INT_SW1);
}
-static struct irqaction cic_cascade_msp = {
- .handler = no_action,
- .name = "MSP CIC cascade",
- .flags = IRQF_NO_THREAD,
-};
-
-static struct irqaction per_cascade_msp = {
- .handler = no_action,
- .name = "MSP PER cascade",
- .flags = IRQF_NO_THREAD,
-};
-
void __init arch_init_irq(void)
{
/* assume we'll be using vectored interrupt mode except in UP mode*/
@@ -142,8 +130,12 @@ void __init arch_init_irq(void)
#endif /* CONFIG_MIPS_MT_SMP */
#endif /* CONFIG_MIPS_MT */
/* setup the cascaded interrupts */
- setup_irq(MSP_INT_CIC, &cic_cascade_msp);
- setup_irq(MSP_INT_PER, &per_cascade_msp);
+ if (request_irq(MSP_INT_CIC, no_action, IRQF_NO_THREAD,
+ "MSP CIC cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "MSP CIC cascade");
+ if (request_irq(MSP_INT_PER, no_action, IRQF_NO_THREAD,
+ "MSP PER cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "MSP PER cascade");
#else
/*
@@ -153,7 +145,11 @@ void __init arch_init_irq(void)
msp_slp_irq_init();
/* setup the cascaded SLP/PER interrupts */
- setup_irq(MSP_INT_SLP, &cic_cascade_msp);
- setup_irq(MSP_INT_PER, &per_cascade_msp);
+ if (request_irq(MSP_INT_SLP, no_action, IRQF_NO_THREAD,
+ "MSP CIC cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "MSP CIC cascade");
+ if (request_irq(MSP_INT_PER, no_action, IRQF_NO_THREAD,
+ "MSP PER cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "MSP PER cascade");
#endif
}
diff --git a/arch/mips/pmcs-msp71xx/msp_smp.c b/arch/mips/pmcs-msp71xx/msp_smp.c
index 8f00d26f2a53..197d1b0bb146 100644
--- a/arch/mips/pmcs-msp71xx/msp_smp.c
+++ b/arch/mips/pmcs-msp71xx/msp_smp.c
@@ -38,21 +38,10 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq_resched = {
- .handler = ipi_resched_interrupt,
- .flags = IRQF_PERCPU,
- .name = "IPI_resched"
-};
-
-static struct irqaction irq_call = {
- .handler = ipi_call_interrupt,
- .flags = IRQF_PERCPU,
- .name = "IPI_call"
-};
-
-void __init arch_init_ipiirq(int irq, struct irqaction *action)
+void __init arch_init_ipiirq(int irq, const char *name, irq_handler_t handler)
{
- setup_irq(irq, action);
+ if (request_irq(irq, handler, IRQF_PERCPU, name, NULL))
+ pr_err("%s: request_irq() failed\n", name);
irq_set_handler(irq, handle_percpu_irq);
}
@@ -60,7 +49,8 @@ void __init msp_vsmp_int_init(void)
{
set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
- arch_init_ipiirq(MIPS_CPU_IPI_RESCHED_IRQ, &irq_resched);
- arch_init_ipiirq(MIPS_CPU_IPI_CALL_IRQ, &irq_call);
+ arch_init_ipiirq(MIPS_CPU_IPI_RESCHED_IRQ, "IPI_resched",
+ ipi_resched_interrupt);
+ arch_init_ipiirq(MIPS_CPU_IPI_CALL_IRQ, "IPI_call", ipi_call_interrupt);
}
#endif /* CONFIG_MIPS_MT_SMP */
diff --git a/arch/mips/pmcs-msp71xx/msp_time.c b/arch/mips/pmcs-msp71xx/msp_time.c
index d83de01f00b8..d3a64982000d 100644
--- a/arch/mips/pmcs-msp71xx/msp_time.c
+++ b/arch/mips/pmcs-msp71xx/msp_time.c
@@ -27,7 +27,6 @@
#define get_current_vpe() \
((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE)
-static struct irqaction timer_vpe1;
static int tim_installed;
void __init plat_time_init(void)
@@ -79,8 +78,10 @@ unsigned int get_c0_compare_int(void)
{
/* MIPS_MT modes may want timer for second VPE */
if ((get_current_vpe()) && !tim_installed) {
- memcpy(&timer_vpe1, &c0_compare_irqaction, sizeof(timer_vpe1));
- setup_irq(MSP_INT_VPE1_TIMER, &timer_vpe1);
+ if (request_irq(MSP_INT_VPE1_TIMER, c0_compare_interrupt,
+ IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED, "timer",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
tim_installed++;
}
diff --git a/arch/mips/ralink/cevt-rt3352.c b/arch/mips/ralink/cevt-rt3352.c
index 61a08943eb2f..1cded505aa1c 100644
--- a/arch/mips/ralink/cevt-rt3352.c
+++ b/arch/mips/ralink/cevt-rt3352.c
@@ -82,12 +82,6 @@ static struct systick_device systick = {
},
};
-static struct irqaction systick_irqaction = {
- .handler = systick_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .dev_id = &systick.dev,
-};
-
static int systick_shutdown(struct clock_event_device *evt)
{
struct systick_device *sdev;
@@ -108,8 +102,14 @@ static int systick_set_oneshot(struct clock_event_device *evt)
sdev = container_of(evt, struct systick_device, dev);
- if (!sdev->irq_requested)
- setup_irq(systick.dev.irq, &systick_irqaction);
+ if (!sdev->irq_requested) {
+ if (request_irq(systick.dev.irq, systick_interrupt,
+ IRQF_PERCPU | IRQF_TIMER, systick.dev.name,
+ &systick.dev)) {
+ pr_err("%s: request_irq() failed\n",
+ systick.dev.name);
+ }
+ }
sdev->irq_requested = 1;
iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN,
systick.membase + SYSTICK_CONFIG);
@@ -125,7 +125,6 @@ static int __init ralink_systick_init(struct device_node *np)
if (!systick.membase)
return -ENXIO;
- systick_irqaction.name = np->name;
systick.dev.name = np->name;
clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60);
systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev);
diff --git a/arch/mips/sgi-ip22/ip22-eisa.c b/arch/mips/sgi-ip22/ip22-eisa.c
index a0a79222ce0b..694f9db41b37 100644
--- a/arch/mips/sgi-ip22/ip22-eisa.c
+++ b/arch/mips/sgi-ip22/ip22-eisa.c
@@ -92,11 +92,6 @@ static irqreturn_t ip22_eisa_intr(int irq, void *dev_id)
return IRQ_NONE;
}
-static struct irqaction eisa_action = {
- .handler = ip22_eisa_intr,
- .name = "EISA",
-};
-
int __init ip22_eisa_init(void)
{
int i, c;
@@ -138,7 +133,8 @@ int __init ip22_eisa_init(void)
/* Cannot use request_irq because of kmalloc not being ready at such
* an early stage. Yes, I've been bitten... */
- setup_irq(SGI_EISA_IRQ, &eisa_action);
+ if (request_irq(SGI_EISA_IRQ, ip22_eisa_intr, 0, "EISA", NULL))
+ pr_err("%s: request_irq() failed\n", "EISA");
EISA_bus = 1;
return 0;
diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c
index 3804895fa697..751567693e60 100644
--- a/arch/mips/sgi-ip22/ip22-int.c
+++ b/arch/mips/sgi-ip22/ip22-int.c
@@ -159,36 +159,7 @@ static void __irq_entry indy_buserror_irq(void)
irq_exit();
}
-static struct irqaction local0_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "local0 cascade",
-};
-
-static struct irqaction local1_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "local1 cascade",
-};
-
-static struct irqaction buserr = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "Bus Error",
-};
-
-static struct irqaction map0_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "mapable0 cascade",
-};
-
#ifdef USE_LIO3_IRQ
-static struct irqaction map1_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "mapable1 cascade",
-};
#define SGI_INTERRUPTS SGINT_END
#else
#define SGI_INTERRUPTS SGINT_LOCAL3
@@ -322,14 +293,24 @@ void __init arch_init_irq(void)
}
/* vector handler. this register the IRQ as non-sharable */
- setup_irq(SGI_LOCAL_0_IRQ, &local0_cascade);
- setup_irq(SGI_LOCAL_1_IRQ, &local1_cascade);
- setup_irq(SGI_BUSERR_IRQ, &buserr);
+ if (request_irq(SGI_LOCAL_0_IRQ, no_action, IRQF_NO_THREAD,
+ "local0 cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "local0 cascade");
+ if (request_irq(SGI_LOCAL_1_IRQ, no_action, IRQF_NO_THREAD,
+ "local1 cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "local1 cascade");
+ if (request_irq(SGI_BUSERR_IRQ, no_action, IRQF_NO_THREAD, "Bus Error",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "Bus Error");
/* cascade in cascade. i love Indy ;-) */
- setup_irq(SGI_MAP_0_IRQ, &map0_cascade);
+ if (request_irq(SGI_MAP_0_IRQ, no_action, IRQF_NO_THREAD,
+ "mapable0 cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "mapable0 cascade");
#ifdef USE_LIO3_IRQ
- setup_irq(SGI_MAP_1_IRQ, &map1_cascade);
+ if (request_irq(SGI_MAP_1_IRQ, no_action, IRQF_NO_THREAD,
+ "mapable1 cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "mapable1 cascade");
#endif
#ifdef CONFIG_EISA
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index a6a0ff7f5aed..9505eae0749f 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -111,16 +111,6 @@ static inline void flush_mace_bus(void)
extern irqreturn_t crime_memerr_intr(int irq, void *dev_id);
extern irqreturn_t crime_cpuerr_intr(int irq, void *dev_id);
-static struct irqaction memerr_irq = {
- .handler = crime_memerr_intr,
- .name = "CRIME memory error",
-};
-
-static struct irqaction cpuerr_irq = {
- .handler = crime_cpuerr_intr,
- .name = "CRIME CPU error",
-};
-
/*
* This is for pure CRIME interrupts - ie not MACE. The advantage?
* We get to split the register in half and do faster lookups.
@@ -497,8 +487,12 @@ void __init arch_init_irq(void)
break;
}
}
- setup_irq(CRIME_MEMERR_IRQ, &memerr_irq);
- setup_irq(CRIME_CPUERR_IRQ, &cpuerr_irq);
+ if (request_irq(CRIME_MEMERR_IRQ, crime_memerr_intr, 0,
+ "CRIME memory error", NULL))
+ pr_err("%s: request_irq() failed\n", "CRIME memory error");
+ if (request_irq(CRIME_CPUERR_IRQ, crime_cpuerr_intr, 0,
+ "CRIME CPU error", NULL))
+ pr_err("%s: request_irq() failed\n", "CRIME CPU error");
#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5)
change_c0_status(ST0_IM, ALLINTS);
diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c
index f9407e170476..7737aa0268b9 100644
--- a/arch/mips/sni/a20r.c
+++ b/arch/mips/sni/a20r.c
@@ -222,7 +222,9 @@ void __init sni_a20r_irq_init(void)
irq_set_chip_and_handler(i, &a20r_irq_type, handle_level_irq);
sni_hwint = a20r_hwint;
change_c0_status(ST0_IM, IE_IRQ0);
- setup_irq(SNI_A20R_IRQ_BASE + 3, &sni_isa_irq);
+ if (request_irq(SNI_A20R_IRQ_BASE + 3, sni_isa_irq_handler,
+ IRQF_SHARED, "ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "ISA");
}
void sni_a20r_init(void)
diff --git a/arch/mips/sni/irq.c b/arch/mips/sni/irq.c
index ac61b90bcc66..dec89afc9886 100644
--- a/arch/mips/sni/irq.c
+++ b/arch/mips/sni/irq.c
@@ -27,7 +27,7 @@ asmlinkage void plat_irq_dispatch(void)
}
/* ISA irq handler */
-static irqreturn_t sni_isa_irq_handler(int dummy, void *p)
+irqreturn_t sni_isa_irq_handler(int dummy, void *p)
{
int irq;
@@ -39,12 +39,6 @@ static irqreturn_t sni_isa_irq_handler(int dummy, void *p)
return IRQ_HANDLED;
}
-struct irqaction sni_isa_irq = {
- .handler = sni_isa_irq_handler,
- .name = "ISA",
- .flags = IRQF_SHARED
-};
-
/*
* On systems with i8259-style interrupt controllers we assume for
* driver compatibility reasons interrupts 0 - 15 to be the i8295
diff --git a/arch/mips/sni/pcit.c b/arch/mips/sni/pcit.c
index 05bb51676e82..6a38e63760a5 100644
--- a/arch/mips/sni/pcit.c
+++ b/arch/mips/sni/pcit.c
@@ -244,7 +244,9 @@ void __init sni_pcit_irq_init(void)
*(volatile u32 *)SNI_PCIT_INT_REG = 0;
sni_hwint = sni_pcit_hwint;
change_c0_status(ST0_IM, IE_IRQ1);
- setup_irq(SNI_PCIT_INT_START + 6, &sni_isa_irq);
+ if (request_irq(SNI_PCIT_INT_START + 6, sni_isa_irq_handler,
+ IRQF_SHARED, "ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "ISA");
}
void __init sni_pcit_cplus_irq_init(void)
@@ -257,7 +259,9 @@ void __init sni_pcit_cplus_irq_init(void)
*(volatile u32 *)SNI_PCIT_INT_REG = 0x40000000;
sni_hwint = sni_pcit_hwint_cplus;
change_c0_status(ST0_IM, IE_IRQ0);
- setup_irq(MIPS_CPU_IRQ_BASE + 3, &sni_isa_irq);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 3, sni_isa_irq_handler,
+ IRQF_SHARED, "ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "ISA");
}
void __init sni_pcit_init(void)
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index f6fa9afcbfd3..0599e5603b5e 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -356,11 +356,6 @@ void sni_rm200_init_8259A(void)
/*
* IRQ2 is cascade interrupt to second interrupt controller
*/
-static struct irqaction sni_rm200_irq2 = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
static struct resource sni_rm200_pic1_resource = {
.name = "onboard ISA pic1",
@@ -389,12 +384,6 @@ static irqreturn_t sni_rm200_i8259A_irq_handler(int dummy, void *p)
return IRQ_HANDLED;
}
-struct irqaction sni_rm200_i8259A_irq = {
- .handler = sni_rm200_i8259A_irq_handler,
- .name = "onboard ISA",
- .flags = IRQF_SHARED
-};
-
void __init sni_rm200_i8259_irqs(void)
{
int i;
@@ -417,7 +406,9 @@ void __init sni_rm200_i8259_irqs(void)
irq_set_chip_and_handler(i, &sni_rm200_i8259A_chip,
handle_level_irq);
- setup_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, &sni_rm200_irq2);
+ if (request_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
@@ -481,8 +472,12 @@ void __init sni_rm200_irq_init(void)
irq_set_chip_and_handler(i, &rm200_irq_type, handle_level_irq);
sni_hwint = sni_rm200_hwint;
change_c0_status(ST0_IM, IE_IRQ0);
- setup_irq(SNI_RM200_INT_START + 0, &sni_rm200_i8259A_irq);
- setup_irq(SNI_RM200_INT_START + 1, &sni_isa_irq);
+ if (request_irq(SNI_RM200_INT_START + 0, sni_rm200_i8259A_irq_handler,
+ IRQF_SHARED, "onboard ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "onboard ISA");
+ if (request_irq(SNI_RM200_INT_START + 1, sni_isa_irq_handler,
+ IRQF_SHARED, "ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "ISA");
}
void __init sni_rm200_init(void)
diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index dbace1f3e1a9..49e9d2096b18 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -55,12 +55,6 @@ static irqreturn_t a20r_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction a20r_irqaction = {
- .handler = a20r_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .name = "a20r-timer",
-};
-
/*
* a20r platform uses 2 counters to divide the input frequency.
* Counter 2 output is connected to Counter 0 & 1 input.
@@ -74,7 +68,9 @@ static void __init sni_a20r_timer_setup(void)
cd->cpumask = cpumask_of(cpu);
clockevents_register_device(cd);
action->dev_id = cd;
- setup_irq(SNI_A20R_IRQ_TIMER, &a20r_irqaction);
+ if (request_irq(SNI_A20R_IRQ_TIMER, a20r_interrupt,
+ IRQF_PERCPU | IRQF_TIMER, "a20r-timer", NULL))
+ pr_err("%s: request_irq() failed\n", "a20r-timer");
}
#define SNI_8254_TICK_RATE 1193182UL
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 7a826fbf9060..8f68446ff2d9 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -17,12 +17,6 @@ typedef struct irq_cascade {
static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned;
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))
{
int retval = 0;
@@ -36,7 +30,8 @@ int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))
irq_cascade[irq].get_irq = get_irq;
if (get_irq != NULL) {
- retval = setup_irq(irq, &cascade_irqaction);
+ retval = request_irq(irq, no_action, IRQF_NO_THREAD,
+ "cascade", NULL);
if (retval < 0)
irq_cascade[irq].get_irq = NULL;
}
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 08/18] MIPS: Replace setup_irq() by request_irq()
@ 2020-02-24 0:50 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:50 UTC (permalink / raw)
To: linux-mips, linux-kernel, linux-arm-kernel
Cc: Kate Stewart, Paul Cercueil, Florian Fainelli, Arnd Bergmann,
Paul Burton, Richard Fontana, Greg Kroah-Hartman, Yifeng Li,
Jiaxun Yang, Thomas Bogendoerfer, Alexios Zavras,
bcm-kernel-feedback-list, Ralf Baechle, Maciej W. Rozycki,
John Crispin, Jilayne Lovejoy, Huacai Chen, Thomas Gleixner,
Keguang Zhang, Allison Randal, Steve Winslow
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/mips/alchemy/common/time.c | 11 +---
arch/mips/ar7/irq.c | 18 +++---
arch/mips/ath25/ar2315.c | 9 +--
arch/mips/ath25/ar5312.c | 9 +--
arch/mips/bcm63xx/irq.c | 38 +++++-------
arch/mips/cobalt/irq.c | 14 ++---
arch/mips/dec/setup.c | 59 ++++++++-----------
arch/mips/emma/markeins/irq.c | 20 +++----
arch/mips/include/asm/sni.h | 2 +-
arch/mips/jazz/irq.c | 12 +---
arch/mips/kernel/cevt-bcm1480.c | 11 +---
arch/mips/kernel/cevt-ds1287.c | 9 +--
arch/mips/kernel/cevt-gt641xx.c | 9 +--
arch/mips/kernel/cevt-r4k.c | 4 +-
arch/mips/kernel/cevt-sb1250.c | 11 +---
arch/mips/kernel/cevt-txx9.c | 11 +---
arch/mips/kernel/i8253.c | 10 +---
arch/mips/kernel/rtlx-mt.c | 8 +--
arch/mips/kernel/smp.c | 33 ++++-------
arch/mips/lasat/interrupt.c | 10 +---
arch/mips/loongson2ef/common/bonito-irq.c | 9 +--
.../loongson2ef/common/cs5536/cs5536_mfgpt.c | 10 +---
arch/mips/loongson2ef/fuloong-2e/irq.c | 14 ++---
arch/mips/loongson2ef/lemote-2f/irq.c | 20 ++-----
arch/mips/loongson32/common/irq.c | 21 ++++---
arch/mips/loongson32/common/time.c | 12 ++--
arch/mips/loongson64/hpet.c | 10 +---
arch/mips/mti-malta/malta-int.c | 10 +---
arch/mips/netlogic/xlr/fmn.c | 9 +--
arch/mips/pmcs-msp71xx/msp_irq.c | 28 ++++-----
arch/mips/pmcs-msp71xx/msp_smp.c | 22 ++-----
arch/mips/pmcs-msp71xx/msp_time.c | 7 ++-
arch/mips/ralink/cevt-rt3352.c | 17 +++---
arch/mips/sgi-ip22/ip22-eisa.c | 8 +--
arch/mips/sgi-ip22/ip22-int.c | 49 +++++----------
arch/mips/sgi-ip32/ip32-irq.c | 18 ++----
arch/mips/sni/a20r.c | 4 +-
arch/mips/sni/irq.c | 8 +--
arch/mips/sni/pcit.c | 8 ++-
arch/mips/sni/rm200.c | 23 +++-----
arch/mips/sni/time.c | 10 +---
arch/mips/vr41xx/common/irq.c | 9 +--
42 files changed, 228 insertions(+), 406 deletions(-)
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 3a21a6a18da7..6ee13ccf1b03 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -72,13 +72,6 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = {
.cpumask = cpu_possible_mask,
};
-static struct irqaction au1x_rtcmatch2_irqaction = {
- .handler = au1x_rtcmatch2_irq,
- .flags = IRQF_TIMER,
- .name = "timer",
- .dev_id = &au1x_rtcmatch2_clockdev,
-};
-
static int __init alchemy_time_init(unsigned int m2int)
{
struct clock_event_device *cd = &au1x_rtcmatch2_clockdev;
@@ -130,7 +123,9 @@ static int __init alchemy_time_init(unsigned int m2int)
cd->min_delta_ns = clockevent_delta2ns(9, cd);
cd->min_delta_ticks = 9; /* ~0.28ms */
clockevents_register_device(cd);
- setup_irq(m2int, &au1x_rtcmatch2_irqaction);
+ if (request_irq(m2int, au1x_rtcmatch2_irq, IRQF_TIMER, "timer",
+ &au1x_rtcmatch2_clockdev))
+ pr_err("%s: request_irq() failed\n", "timer");
printk(KERN_INFO "Alchemy clocksource installed\n");
diff --git a/arch/mips/ar7/irq.c b/arch/mips/ar7/irq.c
index 93a331fe0641..b479e22b7a20 100644
--- a/arch/mips/ar7/irq.c
+++ b/arch/mips/ar7/irq.c
@@ -83,12 +83,6 @@ static struct irq_chip ar7_sec_irq_type = {
.irq_ack = ar7_ack_sec_irq,
};
-static struct irqaction ar7_cascade_action = {
- .handler = no_action,
- .name = "AR7 cascade interrupt",
- .flags = IRQF_NO_THREAD,
-};
-
static void __init ar7_irq_init(int base)
{
int i;
@@ -116,8 +110,16 @@ static void __init ar7_irq_init(int base)
handle_level_irq);
}
- setup_irq(2, &ar7_cascade_action);
- setup_irq(ar7_irq_base, &ar7_cascade_action);
+ if (request_irq(2, no_action, IRQF_NO_THREAD, "AR7 cascade interrupt",
+ NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "AR7 cascade interrupt");
+ }
+ if (request_irq(ar7_irq_base, no_action, IRQF_NO_THREAD,
+ "AR7 cascade interrupt", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "AR7 cascade interrupt");
+ }
set_c0_status(IE_IRQ0);
}
diff --git a/arch/mips/ath25/ar2315.c b/arch/mips/ath25/ar2315.c
index 24f619199ee7..7104b287cb70 100644
--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
@@ -64,11 +64,6 @@ static irqreturn_t ar2315_ahb_err_handler(int cpl, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ar2315_ahb_err_interrupt = {
- .handler = ar2315_ahb_err_handler,
- .name = "ar2315-ahb-error",
-};
-
static void ar2315_misc_irq_handler(struct irq_desc *desc)
{
u32 pending = ar2315_rst_reg_read(AR2315_ISR) &
@@ -159,7 +154,9 @@ void __init ar2315_arch_init_irq(void)
panic("Failed to add IRQ domain");
irq = irq_create_mapping(domain, AR2315_MISC_IRQ_AHB);
- setup_irq(irq, &ar2315_ahb_err_interrupt);
+ if (request_irq(irq, ar2315_ahb_err_handler, 0, "ar2315-ahb-error",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "ar2315-ahb-error");
irq_set_chained_handler_and_data(AR2315_IRQ_MISC,
ar2315_misc_irq_handler, domain);
diff --git a/arch/mips/ath25/ar5312.c b/arch/mips/ath25/ar5312.c
index 47f3e98974fc..e8b9477770b2 100644
--- a/arch/mips/ath25/ar5312.c
+++ b/arch/mips/ath25/ar5312.c
@@ -68,11 +68,6 @@ static irqreturn_t ar5312_ahb_err_handler(int cpl, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ar5312_ahb_err_interrupt = {
- .handler = ar5312_ahb_err_handler,
- .name = "ar5312-ahb-error",
-};
-
static void ar5312_misc_irq_handler(struct irq_desc *desc)
{
u32 pending = ar5312_rst_reg_read(AR5312_ISR) &
@@ -154,7 +149,9 @@ void __init ar5312_arch_init_irq(void)
panic("Failed to add IRQ domain");
irq = irq_create_mapping(domain, AR5312_MISC_IRQ_AHB_PROC);
- setup_irq(irq, &ar5312_ahb_err_interrupt);
+ if (request_irq(irq, ar5312_ahb_err_handler, 0, "ar5312-ahb-error",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "ar5312-ahb-error");
irq_set_chained_handler_and_data(AR5312_IRQ_MISC,
ar5312_misc_irq_handler, domain);
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index ec694b9628c0..a3f6cec8b966 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -399,26 +399,6 @@ static struct irq_chip bcm63xx_external_irq_chip = {
.irq_set_type = bcm63xx_external_irq_set_type,
};
-static struct irqaction cpu_ip2_cascade_action = {
- .handler = no_action,
- .name = "cascade_ip2",
- .flags = IRQF_NO_THREAD,
-};
-
-#ifdef CONFIG_SMP
-static struct irqaction cpu_ip3_cascade_action = {
- .handler = no_action,
- .name = "cascade_ip3",
- .flags = IRQF_NO_THREAD,
-};
-#endif
-
-static struct irqaction cpu_ext_cascade_action = {
- .handler = no_action,
- .name = "cascade_extirq",
- .flags = IRQF_NO_THREAD,
-};
-
static void bcm63xx_init_irq(void)
{
int irq_bits;
@@ -544,14 +524,24 @@ void __init arch_init_irq(void)
handle_edge_irq);
if (!is_ext_irq_cascaded) {
- for (i = 3; i < 3 + ext_irq_count; ++i)
- setup_irq(MIPS_CPU_IRQ_BASE + i, &cpu_ext_cascade_action);
+ for (i = 3; i < 3 + ext_irq_count; ++i) {
+ if (request_irq(MIPS_CPU_IRQ_BASE + i, no_action,
+ IRQF_NO_THREAD, "cascade_extirq",
+ NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "cascade_extirq");
+ }
+ }
}
- setup_irq(MIPS_CPU_IRQ_BASE + 2, &cpu_ip2_cascade_action);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 2, no_action, IRQF_NO_THREAD,
+ "cascade_ip2", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade_ip2");
#ifdef CONFIG_SMP
if (is_ext_irq_cascaded) {
- setup_irq(MIPS_CPU_IRQ_BASE + 3, &cpu_ip3_cascade_action);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 3, no_action,
+ IRQF_NO_THREAD, "cascade_ip3", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade_ip3");
bcm63xx_internal_irq_chip.irq_set_affinity =
bcm63xx_internal_set_affinity;
diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c
index 965c777d3561..dc0bb48a3545 100644
--- a/arch/mips/cobalt/irq.c
+++ b/arch/mips/cobalt/irq.c
@@ -45,18 +45,16 @@ asmlinkage void plat_irq_dispatch(void)
spurious_interrupt();
}
-static struct irqaction cascade = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
void __init arch_init_irq(void)
{
mips_cpu_irq_init();
gt641xx_irq_init();
init_i8259_irqs();
- setup_irq(GT641XX_CASCADE_IRQ, &cascade);
- setup_irq(I8259_CASCADE_IRQ, &cascade);
+ if (request_irq(GT641XX_CASCADE_IRQ, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(I8259_CASCADE_IRQ, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index 61a0bf13e308..e554db3838d7 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -103,28 +103,8 @@ int_ptr asic_mask_nr_tbl[DEC_MAX_ASIC_INTS][2] = {
int cpu_fpu_mask = DEC_CPU_IRQ_MASK(DEC_CPU_INR_FPU);
int *fpu_kstat_irq;
-static struct irqaction ioirq = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-static struct irqaction fpuirq = {
- .handler = no_action,
- .name = "fpu",
- .flags = IRQF_NO_THREAD,
-};
-
-static struct irqaction busirq = {
- .name = "bus error",
- .flags = IRQF_NO_THREAD,
-};
-
-static struct irqaction haltirq = {
- .handler = dec_intr_halt,
- .name = "halt",
- .flags = IRQF_NO_THREAD,
-};
-
+static irq_handler_t busirq_handler;
+static unsigned int busirq_flags = IRQF_NO_THREAD;
/*
* Bus error (DBE/IBE exceptions and bus interrupts) handling setup.
@@ -134,21 +114,21 @@ static void __init dec_be_init(void)
switch (mips_machtype) {
case MACH_DS23100: /* DS2100/DS3100 Pmin/Pmax */
board_be_handler = dec_kn01_be_handler;
- busirq.handler = dec_kn01_be_interrupt;
- busirq.flags |= IRQF_SHARED;
+ busirq_handler = dec_kn01_be_interrupt;
+ busirq_flags |= IRQF_SHARED;
dec_kn01_be_init();
break;
case MACH_DS5000_1XX: /* DS5000/1xx 3min */
case MACH_DS5000_XX: /* DS5000/xx Maxine */
board_be_handler = dec_kn02xa_be_handler;
- busirq.handler = dec_kn02xa_be_interrupt;
+ busirq_handler = dec_kn02xa_be_interrupt;
dec_kn02xa_be_init();
break;
case MACH_DS5000_200: /* DS5000/200 3max */
case MACH_DS5000_2X0: /* DS5000/240 3max+ */
case MACH_DS5900: /* DS5900 bigmax */
board_be_handler = dec_ecc_be_handler;
- busirq.handler = dec_ecc_be_interrupt;
+ busirq_handler = dec_ecc_be_interrupt;
dec_ecc_be_init();
break;
}
@@ -764,20 +744,29 @@ void __init arch_init_irq(void)
int irq_fpu;
irq_fpu = dec_interrupt[DEC_IRQ_FPU];
- setup_irq(irq_fpu, &fpuirq);
+ if (request_irq(irq_fpu, no_action, IRQF_NO_THREAD, "fpu",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "fpu");
desc_fpu = irq_to_desc(irq_fpu);
fpu_kstat_irq = this_cpu_ptr(desc_fpu->kstat_irqs);
}
- if (dec_interrupt[DEC_IRQ_CASCADE] >= 0)
- setup_irq(dec_interrupt[DEC_IRQ_CASCADE], &ioirq);
-
+ if (dec_interrupt[DEC_IRQ_CASCADE] >= 0) {
+ if (request_irq(dec_interrupt[DEC_IRQ_CASCADE], no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ }
/* Register the bus error interrupt. */
- if (dec_interrupt[DEC_IRQ_BUS] >= 0 && busirq.handler)
- setup_irq(dec_interrupt[DEC_IRQ_BUS], &busirq);
-
+ if (dec_interrupt[DEC_IRQ_BUS] >= 0 && busirq_handler) {
+ if (request_irq(dec_interrupt[DEC_IRQ_BUS], busirq_handler,
+ busirq_flags, "bus error", NULL))
+ pr_err("%s: request_irq() failed\n", "bus error");
+ }
/* Register the HALT interrupt. */
- if (dec_interrupt[DEC_IRQ_HALT] >= 0)
- setup_irq(dec_interrupt[DEC_IRQ_HALT], &haltirq);
+ if (dec_interrupt[DEC_IRQ_HALT] >= 0) {
+ if (request_irq(dec_interrupt[DEC_IRQ_HALT], dec_intr_halt,
+ IRQF_NO_THREAD, "halt", NULL))
+ pr_err("%s: request_irq() failed\n", "halt");
+ }
}
asmlinkage unsigned int dec_irq_dispatch(unsigned int irq)
diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c
index 09427a49e7ae..cae623a03db3 100644
--- a/arch/mips/emma/markeins/irq.c
+++ b/arch/mips/emma/markeins/irq.c
@@ -153,14 +153,6 @@ void emma2rh_gpio_irq_init(void)
handle_edge_irq, "edge");
}
-static struct irqaction irq_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "cascade",
- .dev_id = NULL,
- .next = NULL,
-};
-
/*
* the first level int-handler will jump here if it is a emma2rh irq
*/
@@ -272,9 +264,15 @@ void __init arch_init_irq(void)
mips_cpu_irq_init();
/* setup cascade interrupts */
- setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE, &irq_cascade);
- setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_GPIO_CASCADE, &irq_cascade);
- setup_irq(MIPS_CPU_IRQ_BASE + 2, &irq_cascade);
+ if (request_irq(EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE, no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(EMMA2RH_IRQ_BASE + EMMA2RH_GPIO_CASCADE, no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(MIPS_CPU_IRQ_BASE + 2, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
asmlinkage void plat_irq_dispatch(void)
diff --git a/arch/mips/include/asm/sni.h b/arch/mips/include/asm/sni.h
index a107201a2e1e..b8653de25ca1 100644
--- a/arch/mips/include/asm/sni.h
+++ b/arch/mips/include/asm/sni.h
@@ -239,6 +239,6 @@ static inline int sni_eisa_root_init(void)
/* common irq stuff */
extern void (*sni_hwint)(void);
-extern struct irqaction sni_isa_irq;
+extern irqreturn_t sni_isa_irq_handler(int dummy, void *p);
#endif /* __ASM_SNI_H */
diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c
index 5d6828b2a750..72c4ce0a3828 100644
--- a/arch/mips/jazz/irq.c
+++ b/arch/mips/jazz/irq.c
@@ -125,24 +125,18 @@ static irqreturn_t r4030_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction r4030_timer_irqaction = {
- .handler = r4030_timer_interrupt,
- .flags = IRQF_TIMER,
- .name = "R4030 timer",
-};
-
void __init plat_time_init(void)
{
struct clock_event_device *cd = &r4030_clockevent;
- struct irqaction *action = &r4030_timer_irqaction;
unsigned int cpu = smp_processor_id();
BUG_ON(HZ != 100);
cd->cpumask = cpumask_of(cpu);
clockevents_register_device(cd);
- action->dev_id = cd;
- setup_irq(JAZZ_TIMER_IRQ, action);
+ if (request_irq(JAZZ_TIMER_IRQ, r4030_timer_interrupt, IRQF_TIMER,
+ "R4030 timer", cd))
+ pr_err("%s: request_irq() failed\n", "R4030 timer");
/*
* Set clock to 100Hz.
diff --git a/arch/mips/kernel/cevt-bcm1480.c b/arch/mips/kernel/cevt-bcm1480.c
index b3e8c11a8fa5..03cf35d7b873 100644
--- a/arch/mips/kernel/cevt-bcm1480.c
+++ b/arch/mips/kernel/cevt-bcm1480.c
@@ -91,14 +91,12 @@ static irqreturn_t sibyte_counter_handler(int irq, void *dev_id)
}
static DEFINE_PER_CPU(struct clock_event_device, sibyte_hpt_clockevent);
-static DEFINE_PER_CPU(struct irqaction, sibyte_hpt_irqaction);
static DEFINE_PER_CPU(char [18], sibyte_hpt_name);
void sb1480_clockevent_init(void)
{
unsigned int cpu = smp_processor_id();
unsigned int irq = K_BCM1480_INT_TIMER_0 + cpu;
- struct irqaction *action = &per_cpu(sibyte_hpt_irqaction, cpu);
struct clock_event_device *cd = &per_cpu(sibyte_hpt_clockevent, cpu);
unsigned char *name = per_cpu(sibyte_hpt_name, cpu);
@@ -133,11 +131,8 @@ void sb1480_clockevent_init(void)
bcm1480_unmask_irq(cpu, irq);
- action->handler = sibyte_counter_handler;
- action->flags = IRQF_PERCPU | IRQF_TIMER;
- action->name = name;
- action->dev_id = cd;
-
irq_set_affinity(irq, cpumask_of(cpu));
- setup_irq(irq, action);
+ if (request_irq(irq, sibyte_counter_handler, IRQF_PERCPU | IRQF_TIMER,
+ name, cd))
+ pr_err("%s: request_irq() failed\n", name);
}
diff --git a/arch/mips/kernel/cevt-ds1287.c b/arch/mips/kernel/cevt-ds1287.c
index 1e1edab4a63f..9b855257fc65 100644
--- a/arch/mips/kernel/cevt-ds1287.c
+++ b/arch/mips/kernel/cevt-ds1287.c
@@ -100,12 +100,6 @@ static irqreturn_t ds1287_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ds1287_irqaction = {
- .handler = ds1287_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .name = "ds1287",
-};
-
int __init ds1287_clockevent_init(int irq)
{
struct clock_event_device *cd;
@@ -122,5 +116,6 @@ int __init ds1287_clockevent_init(int irq)
clockevents_register_device(&ds1287_clockevent);
- return setup_irq(irq, &ds1287_irqaction);
+ return request_irq(irq, ds1287_interrupt, IRQF_PERCPU | IRQF_TIMER,
+ "ds1287", NULL);
}
diff --git a/arch/mips/kernel/cevt-gt641xx.c b/arch/mips/kernel/cevt-gt641xx.c
index eb53548d2538..5b132e8c51da 100644
--- a/arch/mips/kernel/cevt-gt641xx.c
+++ b/arch/mips/kernel/cevt-gt641xx.c
@@ -120,12 +120,6 @@ static irqreturn_t gt641xx_timer0_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction gt641xx_timer0_irqaction = {
- .handler = gt641xx_timer0_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .name = "gt641xx_timer0",
-};
-
static int __init gt641xx_timer0_clockevent_init(void)
{
struct clock_event_device *cd;
@@ -146,6 +140,7 @@ static int __init gt641xx_timer0_clockevent_init(void)
clockevents_register_device(>641xx_timer0_clockevent);
- return setup_irq(GT641XX_TIMER0_IRQ, >641xx_timer0_irqaction);
+ return request_irq(GT641XX_TIMER0_IRQ, gt641xx_timer0_interrupt,
+ IRQF_PERCPU | IRQF_TIMER, "gt641xx_timer0", NULL);
}
arch_initcall(gt641xx_timer0_clockevent_init);
diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
index dd6a18bc10ab..9adeb40bd648 100644
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -291,7 +291,9 @@ int r4k_clockevent_init(void)
cp0_timer_irq_installed = 1;
- setup_irq(irq, &c0_compare_irqaction);
+ if (request_irq(irq, c0_compare_interrupt,
+ IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
return 0;
}
diff --git a/arch/mips/kernel/cevt-sb1250.c b/arch/mips/kernel/cevt-sb1250.c
index e1a08606c27e..43917eb0219b 100644
--- a/arch/mips/kernel/cevt-sb1250.c
+++ b/arch/mips/kernel/cevt-sb1250.c
@@ -90,14 +90,12 @@ static irqreturn_t sibyte_counter_handler(int irq, void *dev_id)
}
static DEFINE_PER_CPU(struct clock_event_device, sibyte_hpt_clockevent);
-static DEFINE_PER_CPU(struct irqaction, sibyte_hpt_irqaction);
static DEFINE_PER_CPU(char [18], sibyte_hpt_name);
void sb1250_clockevent_init(void)
{
unsigned int cpu = smp_processor_id();
unsigned int irq = K_INT_TIMER_0 + cpu;
- struct irqaction *action = &per_cpu(sibyte_hpt_irqaction, cpu);
struct clock_event_device *cd = &per_cpu(sibyte_hpt_clockevent, cpu);
unsigned char *name = per_cpu(sibyte_hpt_name, cpu);
@@ -133,11 +131,8 @@ void sb1250_clockevent_init(void)
sb1250_unmask_irq(cpu, irq);
- action->handler = sibyte_counter_handler;
- action->flags = IRQF_PERCPU | IRQF_TIMER;
- action->name = name;
- action->dev_id = cd;
-
irq_set_affinity(irq, cpumask_of(cpu));
- setup_irq(irq, action);
+ if (request_irq(irq, sibyte_counter_handler, IRQF_PERCPU | IRQF_TIMER,
+ name, cd))
+ pr_err("%s: request_irq() failed\n", name);
}
diff --git a/arch/mips/kernel/cevt-txx9.c b/arch/mips/kernel/cevt-txx9.c
index 7b17c8f5009d..24de43342866 100644
--- a/arch/mips/kernel/cevt-txx9.c
+++ b/arch/mips/kernel/cevt-txx9.c
@@ -174,13 +174,6 @@ static irqreturn_t txx9tmr_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction txx9tmr_irq = {
- .handler = txx9tmr_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .name = "txx9tmr",
- .dev_id = &txx9_clock_event_device,
-};
-
void __init txx9_clockevent_init(unsigned long baseaddr, int irq,
unsigned int imbusclk)
{
@@ -202,7 +195,9 @@ void __init txx9_clockevent_init(unsigned long baseaddr, int irq,
cd->irq = irq;
cd->cpumask = cpumask_of(0),
clockevents_register_device(cd);
- setup_irq(irq, &txx9tmr_irq);
+ if (request_irq(irq, txx9tmr_interrupt, IRQF_PERCPU | IRQF_TIMER,
+ "txx9tmr", &txx9_clock_event_device))
+ pr_err("%s: request_irq() failed\n", "txx9tmr");
printk(KERN_INFO "TXx9: clockevent device at 0x%lx, irq %d\n",
baseaddr, irq);
}
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index df7ddd246eaa..4ab4cd713c02 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -18,16 +18,12 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq0 = {
- .handler = timer_interrupt,
- .flags = IRQF_NOBALANCING | IRQF_TIMER,
- .name = "timer"
-};
-
void __init setup_pit_timer(void)
{
clockevent_i8253_init(true);
- setup_irq(0, &irq0);
+ if (request_irq(0, timer_interrupt, IRQF_NOBALANCING | IRQF_TIMER,
+ "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
}
static int __init init_pit_clocksource(void)
diff --git a/arch/mips/kernel/rtlx-mt.c b/arch/mips/kernel/rtlx-mt.c
index cb95470e2e69..38c6925a1bea 100644
--- a/arch/mips/kernel/rtlx-mt.c
+++ b/arch/mips/kernel/rtlx-mt.c
@@ -51,11 +51,6 @@ static irqreturn_t rtlx_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction rtlx_irq = {
- .handler = rtlx_interrupt,
- .name = "RTLX",
-};
-
static int rtlx_irq_num = MIPS_CPU_IRQ_BASE + MIPS_CPU_RTLX_IRQ;
void _interrupt_sp(void)
@@ -124,8 +119,7 @@ int __init rtlx_module_init(void)
goto out_class;
}
- rtlx_irq.dev_id = rtlx;
- err = setup_irq(rtlx_irq_num, &rtlx_irq);
+ err = request_irq(rtlx_irq_num, rtlx_interrupt, 0, "RTLX", rtlx);
if (err)
goto out_class;
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index f510c00bda88..d0e911f2421b 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -207,25 +207,13 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq_resched = {
- .handler = ipi_resched_interrupt,
- .flags = IRQF_PERCPU,
- .name = "IPI resched"
-};
-
-static struct irqaction irq_call = {
- .handler = ipi_call_interrupt,
- .flags = IRQF_PERCPU,
- .name = "IPI call"
-};
-
-static void smp_ipi_init_one(unsigned int virq,
- struct irqaction *action)
+static void smp_ipi_init_one(unsigned int virq, const char *name,
+ irq_handler_t handler)
{
int ret;
irq_set_handler(virq, handle_percpu_irq);
- ret = setup_irq(virq, action);
+ ret = request_irq(virq, handler, IRQF_PERCPU, name, NULL);
BUG_ON(ret);
}
@@ -278,12 +266,15 @@ int mips_smp_ipi_allocate(const struct cpumask *mask)
int cpu;
for_each_cpu(cpu, mask) {
- smp_ipi_init_one(call_virq + cpu, &irq_call);
- smp_ipi_init_one(sched_virq + cpu, &irq_resched);
+ smp_ipi_init_one(call_virq + cpu, "IPI call",
+ ipi_call_interrupt);
+ smp_ipi_init_one(sched_virq + cpu, "IPI resched",
+ ipi_resched_interrupt);
}
} else {
- smp_ipi_init_one(call_virq, &irq_call);
- smp_ipi_init_one(sched_virq, &irq_resched);
+ smp_ipi_init_one(call_virq, "IPI call", ipi_call_interrupt);
+ smp_ipi_init_one(sched_virq, "IPI resched",
+ ipi_resched_interrupt);
}
return 0;
@@ -311,8 +302,8 @@ int mips_smp_ipi_free(const struct cpumask *mask)
int cpu;
for_each_cpu(cpu, mask) {
- remove_irq(call_virq + cpu, &irq_call);
- remove_irq(sched_virq + cpu, &irq_resched);
+ free_irq(call_virq + cpu, NULL);
+ free_irq(sched_virq + cpu, NULL);
}
}
irq_destroy_ipi(call_virq, mask);
diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c
index 0f3a8975081d..0c2308b7d184 100644
--- a/arch/mips/lasat/interrupt.c
+++ b/arch/mips/lasat/interrupt.c
@@ -90,12 +90,6 @@ asmlinkage void plat_irq_dispatch(void)
}
}
-static struct irqaction cascade = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
void __init arch_init_irq(void)
{
int i;
@@ -119,5 +113,7 @@ void __init arch_init_irq(void)
for (i = LASAT_IRQ_BASE; i <= LASAT_IRQ_END; i++)
irq_set_chip_and_handler(i, &lasat_irq_type, handle_level_irq);
- setup_irq(LASAT_CASCADE_IRQ, &cascade);
+ if (request_irq(LASAT_CASCADE_IRQ, no_action, IRQF_NO_THREAD, "cascade",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/mips/loongson2ef/common/bonito-irq.c b/arch/mips/loongson2ef/common/bonito-irq.c
index 82352cc25e4c..03cb9bf4dfef 100644
--- a/arch/mips/loongson2ef/common/bonito-irq.c
+++ b/arch/mips/loongson2ef/common/bonito-irq.c
@@ -30,11 +30,6 @@ static struct irq_chip bonito_irq_type = {
.irq_unmask = bonito_irq_enable,
};
-static struct irqaction __maybe_unused dma_timeout_irqaction = {
- .handler = no_action,
- .name = "dma_timeout",
-};
-
void bonito_irq_init(void)
{
u32 i;
@@ -44,6 +39,8 @@ void bonito_irq_init(void)
handle_level_irq);
#ifdef CONFIG_CPU_LOONGSON2E
- setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction);
+ if (request_irq(LOONGSON_IRQ_BASE + 10, no_action, 0, "dma_timeout",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "dma_timeout");
#endif
}
diff --git a/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c b/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c
index 30af1b7c7529..9144e6048640 100644
--- a/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c
+++ b/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c
@@ -100,12 +100,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq5 = {
- .handler = timer_interrupt,
- .flags = IRQF_NOBALANCING | IRQF_TIMER,
- .name = "timer"
-};
-
/*
* Initialize the conversion factor and the min/max deltas of the clock event
* structure and register the clock event source with the framework.
@@ -134,7 +128,9 @@ void __init setup_mfgpt0_timer(void)
clockevents_register_device(cd);
- setup_irq(CS5536_MFGPT_INTR, &irq5);
+ if (request_irq(CS5536_MFGPT_INTR, timer_interrupt,
+ IRQF_NOBALANCING | IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
}
/*
diff --git a/arch/mips/loongson2ef/fuloong-2e/irq.c b/arch/mips/loongson2ef/fuloong-2e/irq.c
index 32278e7bf85c..194aa1c9d836 100644
--- a/arch/mips/loongson2ef/fuloong-2e/irq.c
+++ b/arch/mips/loongson2ef/fuloong-2e/irq.c
@@ -35,12 +35,6 @@ asmlinkage void mach_irq_dispatch(unsigned int pending)
spurious_interrupt();
}
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
void __init mach_init_irq(void)
{
/* init all controller
@@ -59,7 +53,11 @@ void __init mach_init_irq(void)
bonito_irq_init();
/* bonito irq at IP2 */
- setup_irq(MIPS_CPU_IRQ_BASE + 2, &cascade_irqaction);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 2, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
/* 8259 irq at IP5 */
- setup_irq(MIPS_CPU_IRQ_BASE + 5, &cascade_irqaction);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 5, no_action, IRQF_NO_THREAD,
+ "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/mips/loongson2ef/lemote-2f/irq.c b/arch/mips/loongson2ef/lemote-2f/irq.c
index c58a044c6c07..57c5f4e87ac1 100644
--- a/arch/mips/loongson2ef/lemote-2f/irq.c
+++ b/arch/mips/loongson2ef/lemote-2f/irq.c
@@ -90,18 +90,6 @@ static irqreturn_t ip6_action(int cpl, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction ip6_irqaction = {
- .handler = ip6_action,
- .name = "cascade",
- .flags = IRQF_SHARED | IRQF_NO_THREAD,
-};
-
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD | IRQF_NO_SUSPEND,
-};
-
void __init mach_init_irq(void)
{
/* init all controller
@@ -120,7 +108,11 @@ void __init mach_init_irq(void)
bonito_irq_init();
/* setup north bridge irq (bonito) */
- setup_irq(LOONGSON_NORTH_BRIDGE_IRQ, &ip6_irqaction);
+ if (request_irq(LOONGSON_NORTH_BRIDGE_IRQ, ip6_action,
+ IRQF_SHARED | IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
/* setup source bridge irq (i8259) */
- setup_irq(LOONGSON_SOUTH_BRIDGE_IRQ, &cascade_irqaction);
+ if (request_irq(LOONGSON_SOUTH_BRIDGE_IRQ, no_action,
+ IRQF_NO_THREAD | IRQF_NO_SUSPEND, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
diff --git a/arch/mips/loongson32/common/irq.c b/arch/mips/loongson32/common/irq.c
index 168d221d4178..c86553200e3a 100644
--- a/arch/mips/loongson32/common/irq.c
+++ b/arch/mips/loongson32/common/irq.c
@@ -149,12 +149,6 @@ asmlinkage void plat_irq_dispatch(void)
}
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
static void __init ls1x_irq_init(int base)
{
int n;
@@ -176,12 +170,17 @@ static void __init ls1x_irq_init(int base)
handle_level_irq);
}
- setup_irq(INT0_IRQ, &cascade_irqaction);
- setup_irq(INT1_IRQ, &cascade_irqaction);
- setup_irq(INT2_IRQ, &cascade_irqaction);
- setup_irq(INT3_IRQ, &cascade_irqaction);
+ if (request_irq(INT0_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(INT1_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(INT2_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ if (request_irq(INT3_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
#if defined(CONFIG_LOONGSON1_LS1C)
- setup_irq(INT4_IRQ, &cascade_irqaction);
+ if (request_irq(INT4_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
#endif
}
diff --git a/arch/mips/loongson32/common/time.c b/arch/mips/loongson32/common/time.c
index 4cc73f7ac0d4..0b2dd04c9ed0 100644
--- a/arch/mips/loongson32/common/time.c
+++ b/arch/mips/loongson32/common/time.c
@@ -176,13 +176,6 @@ static struct clock_event_device ls1x_clockevent = {
.tick_resume = ls1x_clockevent_tick_resume,
};
-static struct irqaction ls1x_pwmtimer_irqaction = {
- .name = "ls1x-pwmtimer",
- .handler = ls1x_clockevent_isr,
- .dev_id = &ls1x_clockevent,
- .flags = IRQF_PERCPU | IRQF_TIMER,
-};
-
static void __init ls1x_time_init(void)
{
struct clock_event_device *cd = &ls1x_clockevent;
@@ -206,7 +199,10 @@ static void __init ls1x_time_init(void)
if (ret)
panic(KERN_ERR "Failed to register clocksource: %d\n", ret);
- setup_irq(LS1X_TIMER_IRQ, &ls1x_pwmtimer_irqaction);
+ if (request_irq(LS1X_TIMER_IRQ, ls1x_clockevent_isr,
+ IRQF_PERCPU | IRQF_TIMER, "ls1x-pwmtimer",
+ &ls1x_clockevent))
+ pr_err("%s: request_irq() failed\n", "ls1x-pwmtimer");
}
#endif /* CONFIG_CEVT_CSRC_LS1X */
diff --git a/arch/mips/loongson64/hpet.c b/arch/mips/loongson64/hpet.c
index ed15430ad64f..39c770c06c18 100644
--- a/arch/mips/loongson64/hpet.c
+++ b/arch/mips/loongson64/hpet.c
@@ -187,12 +187,6 @@ static irqreturn_t hpet_irq_handler(int irq, void *data)
return IRQ_NONE;
}
-static struct irqaction hpet_irq = {
- .handler = hpet_irq_handler,
- .flags = IRQF_NOBALANCING | IRQF_TIMER,
- .name = "hpet",
-};
-
/*
* hpet address assignation and irq setting should be done in bios.
* but pmon don't do this, we just setup here directly.
@@ -247,7 +241,9 @@ void __init setup_hpet_timer(void)
cd->min_delta_ticks = HPET_MIN_PROG_DELTA;
clockevents_register_device(cd);
- setup_irq(HPET_T0_IRQ, &hpet_irq);
+ if (request_irq(HPET_T0_IRQ, hpet_irq_handler,
+ IRQF_NOBALANCING | IRQF_TIMER, "hpet", NULL))
+ pr_err("%s: request_irq() failed\n", "hpet");
pr_info("hpet clock event device register\n");
}
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index a840e0c1642c..ad9eabca53d3 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -144,12 +144,6 @@ static irqreturn_t corehi_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction corehi_irqaction = {
- .handler = corehi_handler,
- .name = "CoreHi",
- .flags = IRQF_NO_THREAD,
-};
-
static msc_irqmap_t msc_irqmap[] __initdata = {
{MSC01C_INT_TMR, MSC01_IRQ_EDGE, 0},
{MSC01C_INT_PCI, MSC01_IRQ_LEVEL, 0},
@@ -223,5 +217,7 @@ void __init arch_init_irq(void)
corehi_irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_COREHI;
}
- setup_irq(corehi_irq, &corehi_irqaction);
+ if (request_irq(corehi_irq, corehi_handler, IRQF_NO_THREAD, "CoreHi",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "CoreHi");
}
diff --git a/arch/mips/netlogic/xlr/fmn.c b/arch/mips/netlogic/xlr/fmn.c
index d428e8471eec..c7441e728d83 100644
--- a/arch/mips/netlogic/xlr/fmn.c
+++ b/arch/mips/netlogic/xlr/fmn.c
@@ -110,12 +110,6 @@ static irqreturn_t fmn_message_handler(int irq, void *data)
return IRQ_HANDLED;
}
-struct irqaction fmn_irqaction = {
- .handler = fmn_message_handler,
- .flags = IRQF_PERCPU,
- .name = "fmn",
-};
-
void xlr_percpu_fmn_init(void)
{
struct xlr_fmn_info *cpu_fmn_info;
@@ -196,7 +190,8 @@ void nlm_setup_fmn_irq(void)
uint32_t flags;
/* setup irq only once */
- setup_irq(IRQ_FMN, &fmn_irqaction);
+ if (request_irq(IRQ_FMN, fmn_message_handler, IRQF_PERCPU, "fmn", NULL))
+ pr_err("%s: request_irq() failed\n", "fmn");
flags = nlm_cop2_enable_irqsave();
nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1);
diff --git a/arch/mips/pmcs-msp71xx/msp_irq.c b/arch/mips/pmcs-msp71xx/msp_irq.c
index 8d53d7a2ed45..e3f6d509b8b9 100644
--- a/arch/mips/pmcs-msp71xx/msp_irq.c
+++ b/arch/mips/pmcs-msp71xx/msp_irq.c
@@ -107,18 +107,6 @@ asmlinkage void plat_irq_dispatch(void)
do_IRQ(MSP_INT_SW1);
}
-static struct irqaction cic_cascade_msp = {
- .handler = no_action,
- .name = "MSP CIC cascade",
- .flags = IRQF_NO_THREAD,
-};
-
-static struct irqaction per_cascade_msp = {
- .handler = no_action,
- .name = "MSP PER cascade",
- .flags = IRQF_NO_THREAD,
-};
-
void __init arch_init_irq(void)
{
/* assume we'll be using vectored interrupt mode except in UP mode*/
@@ -142,8 +130,12 @@ void __init arch_init_irq(void)
#endif /* CONFIG_MIPS_MT_SMP */
#endif /* CONFIG_MIPS_MT */
/* setup the cascaded interrupts */
- setup_irq(MSP_INT_CIC, &cic_cascade_msp);
- setup_irq(MSP_INT_PER, &per_cascade_msp);
+ if (request_irq(MSP_INT_CIC, no_action, IRQF_NO_THREAD,
+ "MSP CIC cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "MSP CIC cascade");
+ if (request_irq(MSP_INT_PER, no_action, IRQF_NO_THREAD,
+ "MSP PER cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "MSP PER cascade");
#else
/*
@@ -153,7 +145,11 @@ void __init arch_init_irq(void)
msp_slp_irq_init();
/* setup the cascaded SLP/PER interrupts */
- setup_irq(MSP_INT_SLP, &cic_cascade_msp);
- setup_irq(MSP_INT_PER, &per_cascade_msp);
+ if (request_irq(MSP_INT_SLP, no_action, IRQF_NO_THREAD,
+ "MSP CIC cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "MSP CIC cascade");
+ if (request_irq(MSP_INT_PER, no_action, IRQF_NO_THREAD,
+ "MSP PER cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "MSP PER cascade");
#endif
}
diff --git a/arch/mips/pmcs-msp71xx/msp_smp.c b/arch/mips/pmcs-msp71xx/msp_smp.c
index 8f00d26f2a53..197d1b0bb146 100644
--- a/arch/mips/pmcs-msp71xx/msp_smp.c
+++ b/arch/mips/pmcs-msp71xx/msp_smp.c
@@ -38,21 +38,10 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq_resched = {
- .handler = ipi_resched_interrupt,
- .flags = IRQF_PERCPU,
- .name = "IPI_resched"
-};
-
-static struct irqaction irq_call = {
- .handler = ipi_call_interrupt,
- .flags = IRQF_PERCPU,
- .name = "IPI_call"
-};
-
-void __init arch_init_ipiirq(int irq, struct irqaction *action)
+void __init arch_init_ipiirq(int irq, const char *name, irq_handler_t handler)
{
- setup_irq(irq, action);
+ if (request_irq(irq, handler, IRQF_PERCPU, name, NULL))
+ pr_err("%s: request_irq() failed\n", name);
irq_set_handler(irq, handle_percpu_irq);
}
@@ -60,7 +49,8 @@ void __init msp_vsmp_int_init(void)
{
set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
- arch_init_ipiirq(MIPS_CPU_IPI_RESCHED_IRQ, &irq_resched);
- arch_init_ipiirq(MIPS_CPU_IPI_CALL_IRQ, &irq_call);
+ arch_init_ipiirq(MIPS_CPU_IPI_RESCHED_IRQ, "IPI_resched",
+ ipi_resched_interrupt);
+ arch_init_ipiirq(MIPS_CPU_IPI_CALL_IRQ, "IPI_call", ipi_call_interrupt);
}
#endif /* CONFIG_MIPS_MT_SMP */
diff --git a/arch/mips/pmcs-msp71xx/msp_time.c b/arch/mips/pmcs-msp71xx/msp_time.c
index d83de01f00b8..d3a64982000d 100644
--- a/arch/mips/pmcs-msp71xx/msp_time.c
+++ b/arch/mips/pmcs-msp71xx/msp_time.c
@@ -27,7 +27,6 @@
#define get_current_vpe() \
((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE)
-static struct irqaction timer_vpe1;
static int tim_installed;
void __init plat_time_init(void)
@@ -79,8 +78,10 @@ unsigned int get_c0_compare_int(void)
{
/* MIPS_MT modes may want timer for second VPE */
if ((get_current_vpe()) && !tim_installed) {
- memcpy(&timer_vpe1, &c0_compare_irqaction, sizeof(timer_vpe1));
- setup_irq(MSP_INT_VPE1_TIMER, &timer_vpe1);
+ if (request_irq(MSP_INT_VPE1_TIMER, c0_compare_interrupt,
+ IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED, "timer",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
tim_installed++;
}
diff --git a/arch/mips/ralink/cevt-rt3352.c b/arch/mips/ralink/cevt-rt3352.c
index 61a08943eb2f..1cded505aa1c 100644
--- a/arch/mips/ralink/cevt-rt3352.c
+++ b/arch/mips/ralink/cevt-rt3352.c
@@ -82,12 +82,6 @@ static struct systick_device systick = {
},
};
-static struct irqaction systick_irqaction = {
- .handler = systick_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .dev_id = &systick.dev,
-};
-
static int systick_shutdown(struct clock_event_device *evt)
{
struct systick_device *sdev;
@@ -108,8 +102,14 @@ static int systick_set_oneshot(struct clock_event_device *evt)
sdev = container_of(evt, struct systick_device, dev);
- if (!sdev->irq_requested)
- setup_irq(systick.dev.irq, &systick_irqaction);
+ if (!sdev->irq_requested) {
+ if (request_irq(systick.dev.irq, systick_interrupt,
+ IRQF_PERCPU | IRQF_TIMER, systick.dev.name,
+ &systick.dev)) {
+ pr_err("%s: request_irq() failed\n",
+ systick.dev.name);
+ }
+ }
sdev->irq_requested = 1;
iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN,
systick.membase + SYSTICK_CONFIG);
@@ -125,7 +125,6 @@ static int __init ralink_systick_init(struct device_node *np)
if (!systick.membase)
return -ENXIO;
- systick_irqaction.name = np->name;
systick.dev.name = np->name;
clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60);
systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev);
diff --git a/arch/mips/sgi-ip22/ip22-eisa.c b/arch/mips/sgi-ip22/ip22-eisa.c
index a0a79222ce0b..694f9db41b37 100644
--- a/arch/mips/sgi-ip22/ip22-eisa.c
+++ b/arch/mips/sgi-ip22/ip22-eisa.c
@@ -92,11 +92,6 @@ static irqreturn_t ip22_eisa_intr(int irq, void *dev_id)
return IRQ_NONE;
}
-static struct irqaction eisa_action = {
- .handler = ip22_eisa_intr,
- .name = "EISA",
-};
-
int __init ip22_eisa_init(void)
{
int i, c;
@@ -138,7 +133,8 @@ int __init ip22_eisa_init(void)
/* Cannot use request_irq because of kmalloc not being ready at such
* an early stage. Yes, I've been bitten... */
- setup_irq(SGI_EISA_IRQ, &eisa_action);
+ if (request_irq(SGI_EISA_IRQ, ip22_eisa_intr, 0, "EISA", NULL))
+ pr_err("%s: request_irq() failed\n", "EISA");
EISA_bus = 1;
return 0;
diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c
index 3804895fa697..751567693e60 100644
--- a/arch/mips/sgi-ip22/ip22-int.c
+++ b/arch/mips/sgi-ip22/ip22-int.c
@@ -159,36 +159,7 @@ static void __irq_entry indy_buserror_irq(void)
irq_exit();
}
-static struct irqaction local0_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "local0 cascade",
-};
-
-static struct irqaction local1_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "local1 cascade",
-};
-
-static struct irqaction buserr = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "Bus Error",
-};
-
-static struct irqaction map0_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "mapable0 cascade",
-};
-
#ifdef USE_LIO3_IRQ
-static struct irqaction map1_cascade = {
- .handler = no_action,
- .flags = IRQF_NO_THREAD,
- .name = "mapable1 cascade",
-};
#define SGI_INTERRUPTS SGINT_END
#else
#define SGI_INTERRUPTS SGINT_LOCAL3
@@ -322,14 +293,24 @@ void __init arch_init_irq(void)
}
/* vector handler. this register the IRQ as non-sharable */
- setup_irq(SGI_LOCAL_0_IRQ, &local0_cascade);
- setup_irq(SGI_LOCAL_1_IRQ, &local1_cascade);
- setup_irq(SGI_BUSERR_IRQ, &buserr);
+ if (request_irq(SGI_LOCAL_0_IRQ, no_action, IRQF_NO_THREAD,
+ "local0 cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "local0 cascade");
+ if (request_irq(SGI_LOCAL_1_IRQ, no_action, IRQF_NO_THREAD,
+ "local1 cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "local1 cascade");
+ if (request_irq(SGI_BUSERR_IRQ, no_action, IRQF_NO_THREAD, "Bus Error",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "Bus Error");
/* cascade in cascade. i love Indy ;-) */
- setup_irq(SGI_MAP_0_IRQ, &map0_cascade);
+ if (request_irq(SGI_MAP_0_IRQ, no_action, IRQF_NO_THREAD,
+ "mapable0 cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "mapable0 cascade");
#ifdef USE_LIO3_IRQ
- setup_irq(SGI_MAP_1_IRQ, &map1_cascade);
+ if (request_irq(SGI_MAP_1_IRQ, no_action, IRQF_NO_THREAD,
+ "mapable1 cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "mapable1 cascade");
#endif
#ifdef CONFIG_EISA
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index a6a0ff7f5aed..9505eae0749f 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -111,16 +111,6 @@ static inline void flush_mace_bus(void)
extern irqreturn_t crime_memerr_intr(int irq, void *dev_id);
extern irqreturn_t crime_cpuerr_intr(int irq, void *dev_id);
-static struct irqaction memerr_irq = {
- .handler = crime_memerr_intr,
- .name = "CRIME memory error",
-};
-
-static struct irqaction cpuerr_irq = {
- .handler = crime_cpuerr_intr,
- .name = "CRIME CPU error",
-};
-
/*
* This is for pure CRIME interrupts - ie not MACE. The advantage?
* We get to split the register in half and do faster lookups.
@@ -497,8 +487,12 @@ void __init arch_init_irq(void)
break;
}
}
- setup_irq(CRIME_MEMERR_IRQ, &memerr_irq);
- setup_irq(CRIME_CPUERR_IRQ, &cpuerr_irq);
+ if (request_irq(CRIME_MEMERR_IRQ, crime_memerr_intr, 0,
+ "CRIME memory error", NULL))
+ pr_err("%s: request_irq() failed\n", "CRIME memory error");
+ if (request_irq(CRIME_CPUERR_IRQ, crime_cpuerr_intr, 0,
+ "CRIME CPU error", NULL))
+ pr_err("%s: request_irq() failed\n", "CRIME CPU error");
#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5)
change_c0_status(ST0_IM, ALLINTS);
diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c
index f9407e170476..7737aa0268b9 100644
--- a/arch/mips/sni/a20r.c
+++ b/arch/mips/sni/a20r.c
@@ -222,7 +222,9 @@ void __init sni_a20r_irq_init(void)
irq_set_chip_and_handler(i, &a20r_irq_type, handle_level_irq);
sni_hwint = a20r_hwint;
change_c0_status(ST0_IM, IE_IRQ0);
- setup_irq(SNI_A20R_IRQ_BASE + 3, &sni_isa_irq);
+ if (request_irq(SNI_A20R_IRQ_BASE + 3, sni_isa_irq_handler,
+ IRQF_SHARED, "ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "ISA");
}
void sni_a20r_init(void)
diff --git a/arch/mips/sni/irq.c b/arch/mips/sni/irq.c
index ac61b90bcc66..dec89afc9886 100644
--- a/arch/mips/sni/irq.c
+++ b/arch/mips/sni/irq.c
@@ -27,7 +27,7 @@ asmlinkage void plat_irq_dispatch(void)
}
/* ISA irq handler */
-static irqreturn_t sni_isa_irq_handler(int dummy, void *p)
+irqreturn_t sni_isa_irq_handler(int dummy, void *p)
{
int irq;
@@ -39,12 +39,6 @@ static irqreturn_t sni_isa_irq_handler(int dummy, void *p)
return IRQ_HANDLED;
}
-struct irqaction sni_isa_irq = {
- .handler = sni_isa_irq_handler,
- .name = "ISA",
- .flags = IRQF_SHARED
-};
-
/*
* On systems with i8259-style interrupt controllers we assume for
* driver compatibility reasons interrupts 0 - 15 to be the i8295
diff --git a/arch/mips/sni/pcit.c b/arch/mips/sni/pcit.c
index 05bb51676e82..6a38e63760a5 100644
--- a/arch/mips/sni/pcit.c
+++ b/arch/mips/sni/pcit.c
@@ -244,7 +244,9 @@ void __init sni_pcit_irq_init(void)
*(volatile u32 *)SNI_PCIT_INT_REG = 0;
sni_hwint = sni_pcit_hwint;
change_c0_status(ST0_IM, IE_IRQ1);
- setup_irq(SNI_PCIT_INT_START + 6, &sni_isa_irq);
+ if (request_irq(SNI_PCIT_INT_START + 6, sni_isa_irq_handler,
+ IRQF_SHARED, "ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "ISA");
}
void __init sni_pcit_cplus_irq_init(void)
@@ -257,7 +259,9 @@ void __init sni_pcit_cplus_irq_init(void)
*(volatile u32 *)SNI_PCIT_INT_REG = 0x40000000;
sni_hwint = sni_pcit_hwint_cplus;
change_c0_status(ST0_IM, IE_IRQ0);
- setup_irq(MIPS_CPU_IRQ_BASE + 3, &sni_isa_irq);
+ if (request_irq(MIPS_CPU_IRQ_BASE + 3, sni_isa_irq_handler,
+ IRQF_SHARED, "ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "ISA");
}
void __init sni_pcit_init(void)
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index f6fa9afcbfd3..0599e5603b5e 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -356,11 +356,6 @@ void sni_rm200_init_8259A(void)
/*
* IRQ2 is cascade interrupt to second interrupt controller
*/
-static struct irqaction sni_rm200_irq2 = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
static struct resource sni_rm200_pic1_resource = {
.name = "onboard ISA pic1",
@@ -389,12 +384,6 @@ static irqreturn_t sni_rm200_i8259A_irq_handler(int dummy, void *p)
return IRQ_HANDLED;
}
-struct irqaction sni_rm200_i8259A_irq = {
- .handler = sni_rm200_i8259A_irq_handler,
- .name = "onboard ISA",
- .flags = IRQF_SHARED
-};
-
void __init sni_rm200_i8259_irqs(void)
{
int i;
@@ -417,7 +406,9 @@ void __init sni_rm200_i8259_irqs(void)
irq_set_chip_and_handler(i, &sni_rm200_i8259A_chip,
handle_level_irq);
- setup_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, &sni_rm200_irq2);
+ if (request_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
}
@@ -481,8 +472,12 @@ void __init sni_rm200_irq_init(void)
irq_set_chip_and_handler(i, &rm200_irq_type, handle_level_irq);
sni_hwint = sni_rm200_hwint;
change_c0_status(ST0_IM, IE_IRQ0);
- setup_irq(SNI_RM200_INT_START + 0, &sni_rm200_i8259A_irq);
- setup_irq(SNI_RM200_INT_START + 1, &sni_isa_irq);
+ if (request_irq(SNI_RM200_INT_START + 0, sni_rm200_i8259A_irq_handler,
+ IRQF_SHARED, "onboard ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "onboard ISA");
+ if (request_irq(SNI_RM200_INT_START + 1, sni_isa_irq_handler,
+ IRQF_SHARED, "ISA", NULL))
+ pr_err("%s: request_irq() failed\n", "ISA");
}
void __init sni_rm200_init(void)
diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index dbace1f3e1a9..49e9d2096b18 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -55,12 +55,6 @@ static irqreturn_t a20r_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction a20r_irqaction = {
- .handler = a20r_interrupt,
- .flags = IRQF_PERCPU | IRQF_TIMER,
- .name = "a20r-timer",
-};
-
/*
* a20r platform uses 2 counters to divide the input frequency.
* Counter 2 output is connected to Counter 0 & 1 input.
@@ -74,7 +68,9 @@ static void __init sni_a20r_timer_setup(void)
cd->cpumask = cpumask_of(cpu);
clockevents_register_device(cd);
action->dev_id = cd;
- setup_irq(SNI_A20R_IRQ_TIMER, &a20r_irqaction);
+ if (request_irq(SNI_A20R_IRQ_TIMER, a20r_interrupt,
+ IRQF_PERCPU | IRQF_TIMER, "a20r-timer", NULL))
+ pr_err("%s: request_irq() failed\n", "a20r-timer");
}
#define SNI_8254_TICK_RATE 1193182UL
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 7a826fbf9060..8f68446ff2d9 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -17,12 +17,6 @@ typedef struct irq_cascade {
static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned;
-static struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))
{
int retval = 0;
@@ -36,7 +30,8 @@ int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))
irq_cascade[irq].get_irq = get_irq;
if (get_irq != NULL) {
- retval = setup_irq(irq, &cascade_irqaction);
+ retval = request_irq(irq, no_action, IRQF_NO_THREAD,
+ "cascade", NULL);
if (retval < 0)
irq_cascade[irq].get_irq = NULL;
}
--
2.25.1
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^ permalink raw reply related [flat|nested] 78+ messages in thread
* [PATCH v2 09/18] parisc: Replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (9 preceding siblings ...)
(?)
@ 2020-02-24 0:51 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:51 UTC (permalink / raw)
To: linux-parisc, linux-kernel
Cc: James E.J. Bottomley, Helge Deller, Greg Kroah-Hartman,
Allison Randal, Richard Fontana, Thomas Gleixner
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/parisc/kernel/irq.c | 21 +++++----------------
drivers/parisc/eisa.c | 8 ++------
2 files changed, 7 insertions(+), 22 deletions(-)
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index e5fcfb70cc7c..cb48523e7d19 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -560,20 +560,6 @@ void do_cpu_irq_mask(struct pt_regs *regs)
goto out;
}
-static struct irqaction timer_action = {
- .handler = timer_interrupt,
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
-};
-
-#ifdef CONFIG_SMP
-static struct irqaction ipi_action = {
- .handler = ipi_interrupt,
- .name = "IPI",
- .flags = IRQF_PERCPU,
-};
-#endif
-
static void claim_cpu_irqs(void)
{
int i;
@@ -583,10 +569,13 @@ static void claim_cpu_irqs(void)
}
irq_set_handler(TIMER_IRQ, handle_percpu_irq);
- setup_irq(TIMER_IRQ, &timer_action);
+ if (request_irq(TIMER_IRQ, timer_interrupt,
+ IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
#ifdef CONFIG_SMP
irq_set_handler(IPI_IRQ, handle_percpu_irq);
- setup_irq(IPI_IRQ, &ipi_action);
+ if (request_irq(IPI_IRQ, ipi_interrupt, IRQF_PERCPU, "IPI", NULL))
+ pr_err("%s: request_irq() failed\n", "IPI");
#endif
}
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 9d00a24277aa..213d21f228e7 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -243,11 +243,6 @@ static irqreturn_t dummy_irq2_handler(int _, void *dev)
return IRQ_HANDLED;
}
-static struct irqaction irq2_action = {
- .handler = dummy_irq2_handler,
- .name = "cascade",
-};
-
static void init_eisa_pic(void)
{
unsigned long flags;
@@ -335,7 +330,8 @@ static int __init eisa_probe(struct parisc_device *dev)
}
/* Reserve IRQ2 */
- setup_irq(2, &irq2_action);
+ if (request_irq(2, dummy_irq2_handler, 0, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
for (i = 0; i < 16; i++) {
irq_set_chip_and_handler(i, &eisa_interrupt_type,
handle_simple_irq);
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 10/18] powerpc: Replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
@ 2020-02-24 0:51 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:51 UTC (permalink / raw)
To: linuxppc-dev, linux-kernel
Cc: Scott Wood, Kumar Gala, Benjamin Herrenschmidt, Paul Mackerras,
Michael Ellerman, Vitaly Bordug, Thomas Gleixner
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Christophe Leroy <christophe.leroy@c-s.fr> # for 8xx parts
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/powerpc/platforms/85xx/mpc85xx_cds.c | 10 +++-----
arch/powerpc/platforms/8xx/cpm1.c | 9 ++-----
arch/powerpc/platforms/8xx/m8xx_setup.c | 9 ++-----
arch/powerpc/platforms/chrp/setup.c | 14 ++++------
arch/powerpc/platforms/powermac/pic.c | 31 ++++++++++-------------
arch/powerpc/platforms/powermac/smp.c | 9 ++-----
6 files changed, 27 insertions(+), 55 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index 6b1436abe9b1..1c5598877d70 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -218,12 +218,6 @@ static irqreturn_t mpc85xx_8259_cascade_action(int irq, void *dev_id)
{
return IRQ_HANDLED;
}
-
-static struct irqaction mpc85xxcds_8259_irqaction = {
- .handler = mpc85xx_8259_cascade_action,
- .flags = IRQF_SHARED | IRQF_NO_THREAD,
- .name = "8259 cascade",
-};
#endif /* PPC_I8259 */
#endif /* CONFIG_PCI */
@@ -271,7 +265,9 @@ static int mpc85xx_cds_8259_attach(void)
* disabled when the last user of the shared IRQ line frees their
* interrupt.
*/
- if ((ret = setup_irq(cascade_irq, &mpc85xxcds_8259_irqaction))) {
+ ret = request_irq(cascade_irq, mpc85xx_8259_cascade_action,
+ IRQF_SHARED | IRQF_NO_THREAD, "8259 cascade", NULL);
+ if (ret) {
printk(KERN_ERR "Failed to setup cascade interrupt\n");
return ret;
}
diff --git a/arch/powerpc/platforms/8xx/cpm1.c b/arch/powerpc/platforms/8xx/cpm1.c
index a43ee7d1ff85..4db4ca2e1222 100644
--- a/arch/powerpc/platforms/8xx/cpm1.c
+++ b/arch/powerpc/platforms/8xx/cpm1.c
@@ -120,12 +120,6 @@ static irqreturn_t cpm_error_interrupt(int irq, void *dev)
return IRQ_HANDLED;
}
-static struct irqaction cpm_error_irqaction = {
- .handler = cpm_error_interrupt,
- .flags = IRQF_NO_THREAD,
- .name = "error",
-};
-
static const struct irq_domain_ops cpm_pic_host_ops = {
.map = cpm_pic_host_map,
};
@@ -187,7 +181,8 @@ unsigned int __init cpm_pic_init(void)
if (!eirq)
goto end;
- if (setup_irq(eirq, &cpm_error_irqaction))
+ if (request_irq(eirq, cpm_error_interrupt, IRQF_NO_THREAD, "error",
+ NULL))
printk(KERN_ERR "Could not allocate CPM error IRQ!");
setbits32(&cpic_reg->cpic_cicr, CICR_IEN);
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index f1c805c8adbc..df4d57d07f9a 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -39,12 +39,6 @@ static irqreturn_t timebase_interrupt(int irq, void *dev)
return IRQ_HANDLED;
}
-static struct irqaction tbint_irqaction = {
- .handler = timebase_interrupt,
- .flags = IRQF_NO_THREAD,
- .name = "tbint",
-};
-
/* per-board overridable init_internal_rtc() function. */
void __init __attribute__ ((weak))
init_internal_rtc(void)
@@ -157,7 +151,8 @@ void __init mpc8xx_calibrate_decr(void)
(TBSCR_TBF | TBSCR_TBE));
immr_unmap(sys_tmr2);
- if (setup_irq(virq, &tbint_irqaction))
+ if (request_irq(virq, timebase_interrupt, IRQF_NO_THREAD, "tbint",
+ NULL))
panic("Could not allocate timer IRQ!");
}
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index fcf6f2342ef4..3f4e324f1d67 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -451,13 +451,6 @@ static void __init chrp_find_openpic(void)
of_node_put(np);
}
-#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_XMON)
-static struct irqaction xmon_irqaction = {
- .handler = xmon_irq,
- .name = "XMON break",
-};
-#endif
-
static void __init chrp_find_8259(void)
{
struct device_node *np, *pic = NULL;
@@ -541,8 +534,11 @@ static void __init chrp_init_IRQ(void)
if (of_node_is_type(kbd->parent, "adb"))
break;
of_node_put(kbd);
- if (kbd)
- setup_irq(HYDRA_INT_ADB_NMI, &xmon_irqaction);
+ if (kbd) {
+ if (request_irq(HYDRA_INT_ADB_NMI, xmon_irq, 0, "XMON break",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "XMON break");
+ }
#endif
}
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 2e969073473d..a08b0ddc2764 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -250,20 +250,6 @@ static unsigned int pmac_pic_get_irq(void)
return irq_linear_revmap(pmac_pic_host, irq);
}
-#ifdef CONFIG_XMON
-static struct irqaction xmon_action = {
- .handler = xmon_irq,
- .flags = IRQF_NO_THREAD,
- .name = "NMI - XMON"
-};
-#endif
-
-static struct irqaction gatwick_cascade_action = {
- .handler = gatwick_action,
- .flags = IRQF_NO_THREAD,
- .name = "cascade",
-};
-
static int pmac_pic_host_match(struct irq_domain *h, struct device_node *node,
enum irq_domain_bus_token bus_token)
{
@@ -384,12 +370,17 @@ static void __init pmac_pic_probe_oldstyle(void)
out_le32(&pmac_irq_hw[i]->enable, 0);
/* Hookup cascade irq */
- if (slave && pmac_irq_cascade)
- setup_irq(pmac_irq_cascade, &gatwick_cascade_action);
+ if (slave && pmac_irq_cascade) {
+ if (request_irq(pmac_irq_cascade, gatwick_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ }
printk(KERN_INFO "irq: System has %d possible interrupts\n", max_irqs);
#ifdef CONFIG_XMON
- setup_irq(irq_create_mapping(NULL, 20), &xmon_action);
+ if (request_irq(irq_create_mapping(NULL, 20), xmon_irq, IRQF_NO_THREAD,
+ "NMI - XMON", NULL))
+ pr_err("%s: request_irq() failed\n", "NMI - XMON");
#endif
}
@@ -441,7 +432,11 @@ static void __init pmac_pic_setup_mpic_nmi(struct mpic *mpic)
nmi_irq = irq_of_parse_and_map(pswitch, 0);
if (nmi_irq) {
mpic_irq_set_priority(nmi_irq, 9);
- setup_irq(nmi_irq, &xmon_action);
+ if (request_irq(nmi_irq, xmon_irq, IRQF_NO_THREAD,
+ "NMI - XMON", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "NMI - XMON");
+ }
}
of_node_put(pswitch);
}
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index f95fbdee6efe..0121b31a9e7b 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -399,12 +399,6 @@ static int __init smp_psurge_kick_cpu(int nr)
return 0;
}
-static struct irqaction psurge_irqaction = {
- .handler = psurge_ipi_intr,
- .flags = IRQF_PERCPU | IRQF_NO_THREAD,
- .name = "primary IPI",
-};
-
static void __init smp_psurge_setup_cpu(int cpu_nr)
{
if (cpu_nr != 0 || !psurge_start)
@@ -413,7 +407,8 @@ static void __init smp_psurge_setup_cpu(int cpu_nr)
/* reset the entry point so if we get another intr we won't
* try to startup again */
out_be32(psurge_start, 0x100);
- if (setup_irq(irq_create_mapping(NULL, 30), &psurge_irqaction))
+ if (request_irq(irq_create_mapping(NULL, 30), psurge_ipi_intr,
+ IRQF_PERCPU | IRQF_NO_THREAD, "primary IPI", NULL))
printk(KERN_ERR "Couldn't get primary IPI interrupt");
}
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 10/18] powerpc: Replace setup_irq() by request_irq()
@ 2020-02-24 0:51 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:51 UTC (permalink / raw)
To: linuxppc-dev, linux-kernel; +Cc: Scott Wood, Paul Mackerras, Thomas Gleixner
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Tested-by: Christophe Leroy <christophe.leroy@c-s.fr> # for 8xx parts
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/powerpc/platforms/85xx/mpc85xx_cds.c | 10 +++-----
arch/powerpc/platforms/8xx/cpm1.c | 9 ++-----
arch/powerpc/platforms/8xx/m8xx_setup.c | 9 ++-----
arch/powerpc/platforms/chrp/setup.c | 14 ++++------
arch/powerpc/platforms/powermac/pic.c | 31 ++++++++++-------------
arch/powerpc/platforms/powermac/smp.c | 9 ++-----
6 files changed, 27 insertions(+), 55 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index 6b1436abe9b1..1c5598877d70 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -218,12 +218,6 @@ static irqreturn_t mpc85xx_8259_cascade_action(int irq, void *dev_id)
{
return IRQ_HANDLED;
}
-
-static struct irqaction mpc85xxcds_8259_irqaction = {
- .handler = mpc85xx_8259_cascade_action,
- .flags = IRQF_SHARED | IRQF_NO_THREAD,
- .name = "8259 cascade",
-};
#endif /* PPC_I8259 */
#endif /* CONFIG_PCI */
@@ -271,7 +265,9 @@ static int mpc85xx_cds_8259_attach(void)
* disabled when the last user of the shared IRQ line frees their
* interrupt.
*/
- if ((ret = setup_irq(cascade_irq, &mpc85xxcds_8259_irqaction))) {
+ ret = request_irq(cascade_irq, mpc85xx_8259_cascade_action,
+ IRQF_SHARED | IRQF_NO_THREAD, "8259 cascade", NULL);
+ if (ret) {
printk(KERN_ERR "Failed to setup cascade interrupt\n");
return ret;
}
diff --git a/arch/powerpc/platforms/8xx/cpm1.c b/arch/powerpc/platforms/8xx/cpm1.c
index a43ee7d1ff85..4db4ca2e1222 100644
--- a/arch/powerpc/platforms/8xx/cpm1.c
+++ b/arch/powerpc/platforms/8xx/cpm1.c
@@ -120,12 +120,6 @@ static irqreturn_t cpm_error_interrupt(int irq, void *dev)
return IRQ_HANDLED;
}
-static struct irqaction cpm_error_irqaction = {
- .handler = cpm_error_interrupt,
- .flags = IRQF_NO_THREAD,
- .name = "error",
-};
-
static const struct irq_domain_ops cpm_pic_host_ops = {
.map = cpm_pic_host_map,
};
@@ -187,7 +181,8 @@ unsigned int __init cpm_pic_init(void)
if (!eirq)
goto end;
- if (setup_irq(eirq, &cpm_error_irqaction))
+ if (request_irq(eirq, cpm_error_interrupt, IRQF_NO_THREAD, "error",
+ NULL))
printk(KERN_ERR "Could not allocate CPM error IRQ!");
setbits32(&cpic_reg->cpic_cicr, CICR_IEN);
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index f1c805c8adbc..df4d57d07f9a 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -39,12 +39,6 @@ static irqreturn_t timebase_interrupt(int irq, void *dev)
return IRQ_HANDLED;
}
-static struct irqaction tbint_irqaction = {
- .handler = timebase_interrupt,
- .flags = IRQF_NO_THREAD,
- .name = "tbint",
-};
-
/* per-board overridable init_internal_rtc() function. */
void __init __attribute__ ((weak))
init_internal_rtc(void)
@@ -157,7 +151,8 @@ void __init mpc8xx_calibrate_decr(void)
(TBSCR_TBF | TBSCR_TBE));
immr_unmap(sys_tmr2);
- if (setup_irq(virq, &tbint_irqaction))
+ if (request_irq(virq, timebase_interrupt, IRQF_NO_THREAD, "tbint",
+ NULL))
panic("Could not allocate timer IRQ!");
}
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index fcf6f2342ef4..3f4e324f1d67 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -451,13 +451,6 @@ static void __init chrp_find_openpic(void)
of_node_put(np);
}
-#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_XMON)
-static struct irqaction xmon_irqaction = {
- .handler = xmon_irq,
- .name = "XMON break",
-};
-#endif
-
static void __init chrp_find_8259(void)
{
struct device_node *np, *pic = NULL;
@@ -541,8 +534,11 @@ static void __init chrp_init_IRQ(void)
if (of_node_is_type(kbd->parent, "adb"))
break;
of_node_put(kbd);
- if (kbd)
- setup_irq(HYDRA_INT_ADB_NMI, &xmon_irqaction);
+ if (kbd) {
+ if (request_irq(HYDRA_INT_ADB_NMI, xmon_irq, 0, "XMON break",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "XMON break");
+ }
#endif
}
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 2e969073473d..a08b0ddc2764 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -250,20 +250,6 @@ static unsigned int pmac_pic_get_irq(void)
return irq_linear_revmap(pmac_pic_host, irq);
}
-#ifdef CONFIG_XMON
-static struct irqaction xmon_action = {
- .handler = xmon_irq,
- .flags = IRQF_NO_THREAD,
- .name = "NMI - XMON"
-};
-#endif
-
-static struct irqaction gatwick_cascade_action = {
- .handler = gatwick_action,
- .flags = IRQF_NO_THREAD,
- .name = "cascade",
-};
-
static int pmac_pic_host_match(struct irq_domain *h, struct device_node *node,
enum irq_domain_bus_token bus_token)
{
@@ -384,12 +370,17 @@ static void __init pmac_pic_probe_oldstyle(void)
out_le32(&pmac_irq_hw[i]->enable, 0);
/* Hookup cascade irq */
- if (slave && pmac_irq_cascade)
- setup_irq(pmac_irq_cascade, &gatwick_cascade_action);
+ if (slave && pmac_irq_cascade) {
+ if (request_irq(pmac_irq_cascade, gatwick_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ }
printk(KERN_INFO "irq: System has %d possible interrupts\n", max_irqs);
#ifdef CONFIG_XMON
- setup_irq(irq_create_mapping(NULL, 20), &xmon_action);
+ if (request_irq(irq_create_mapping(NULL, 20), xmon_irq, IRQF_NO_THREAD,
+ "NMI - XMON", NULL))
+ pr_err("%s: request_irq() failed\n", "NMI - XMON");
#endif
}
@@ -441,7 +432,11 @@ static void __init pmac_pic_setup_mpic_nmi(struct mpic *mpic)
nmi_irq = irq_of_parse_and_map(pswitch, 0);
if (nmi_irq) {
mpic_irq_set_priority(nmi_irq, 9);
- setup_irq(nmi_irq, &xmon_action);
+ if (request_irq(nmi_irq, xmon_irq, IRQF_NO_THREAD,
+ "NMI - XMON", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "NMI - XMON");
+ }
}
of_node_put(pswitch);
}
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index f95fbdee6efe..0121b31a9e7b 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -399,12 +399,6 @@ static int __init smp_psurge_kick_cpu(int nr)
return 0;
}
-static struct irqaction psurge_irqaction = {
- .handler = psurge_ipi_intr,
- .flags = IRQF_PERCPU | IRQF_NO_THREAD,
- .name = "primary IPI",
-};
-
static void __init smp_psurge_setup_cpu(int cpu_nr)
{
if (cpu_nr != 0 || !psurge_start)
@@ -413,7 +407,8 @@ static void __init smp_psurge_setup_cpu(int cpu_nr)
/* reset the entry point so if we get another intr we won't
* try to startup again */
out_be32(psurge_start, 0x100);
- if (setup_irq(irq_create_mapping(NULL, 30), &psurge_irqaction))
+ if (request_irq(irq_create_mapping(NULL, 30), psurge_ipi_intr,
+ IRQF_PERCPU | IRQF_NO_THREAD, "primary IPI", NULL))
printk(KERN_ERR "Couldn't get primary IPI interrupt");
}
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread
* [PATCH v2 11/18] s390: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (11 preceding siblings ...)
(?)
@ 2020-02-24 0:51 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:51 UTC (permalink / raw)
To: linux-s390, linux-kernel
Cc: Heiko Carstens, Vasily Gorbik, Christian Borntraeger,
Sebastian Ott, Peter Oberparleiter, Martin Schwidefsky,
Thomas Gleixner
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/s390/kernel/irq.c | 8 ++------
drivers/s390/cio/airq.c | 8 ++------
drivers/s390/cio/cio.c | 8 ++------
3 files changed, 6 insertions(+), 18 deletions(-)
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 8371855042dc..2cbe7296f069 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -294,11 +294,6 @@ static irqreturn_t do_ext_interrupt(int irq, void *dummy)
return IRQ_HANDLED;
}
-static struct irqaction external_interrupt = {
- .name = "EXT",
- .handler = do_ext_interrupt,
-};
-
void __init init_ext_interrupts(void)
{
int idx;
@@ -308,7 +303,8 @@ void __init init_ext_interrupts(void)
irq_set_chip_and_handler(EXT_INTERRUPT,
&dummy_irq_chip, handle_percpu_irq);
- setup_irq(EXT_INTERRUPT, &external_interrupt);
+ if (request_irq(EXT_INTERRUPT, do_ext_interrupt, 0, "EXT", NULL))
+ pr_err("%s: request_irq() failed\n", "EXT");
}
static DEFINE_SPINLOCK(irq_subclass_lock);
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index 427b2e24a8ce..8d062d8ff669 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -105,16 +105,12 @@ static irqreturn_t do_airq_interrupt(int irq, void *dummy)
return IRQ_HANDLED;
}
-static struct irqaction airq_interrupt = {
- .name = "AIO",
- .handler = do_airq_interrupt,
-};
-
void __init init_airq_interrupts(void)
{
irq_set_chip_and_handler(THIN_INTERRUPT,
&dummy_irq_chip, handle_percpu_irq);
- setup_irq(THIN_INTERRUPT, &airq_interrupt);
+ if (request_irq(THIN_INTERRUPT, do_airq_interrupt, 0, "AIO", NULL))
+ pr_err("%s: request_irq() failed\n", "AIO");
}
static inline unsigned long iv_size(unsigned long bits)
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 18f5458f90e8..703265786756 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -563,16 +563,12 @@ static irqreturn_t do_cio_interrupt(int irq, void *dummy)
return IRQ_HANDLED;
}
-static struct irqaction io_interrupt = {
- .name = "I/O",
- .handler = do_cio_interrupt,
-};
-
void __init init_cio_interrupts(void)
{
irq_set_chip_and_handler(IO_INTERRUPT,
&dummy_irq_chip, handle_percpu_irq);
- setup_irq(IO_INTERRUPT, &io_interrupt);
+ if (request_irq(IO_INTERRUPT, do_cio_interrupt, 0, "I/O", NULL))
+ pr_err("%s: request_irq() failed\n", "I/O");
}
#ifdef CONFIG_CCW_CONSOLE
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 12/18] sh: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
@ 2020-02-24 0:51 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:51 UTC (permalink / raw)
To: linux-sh, linux-kernel
Cc: Yoshinori Sato, Rich Felker, Thomas Gleixner, Arnd Bergmann
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/sh/boards/mach-cayman/irq.c | 18 ++++++------------
arch/sh/drivers/dma/dma-pvr2.c | 9 +++------
2 files changed, 9 insertions(+), 18 deletions(-)
diff --git a/arch/sh/boards/mach-cayman/irq.c b/arch/sh/boards/mach-cayman/irq.c
index 3b6ea2d99013..57d015f3c075 100644
--- a/arch/sh/boards/mach-cayman/irq.c
+++ b/arch/sh/boards/mach-cayman/irq.c
@@ -40,16 +40,6 @@ static irqreturn_t cayman_interrupt_pci2(int irq, void *dev_id)
return IRQ_NONE;
}
-static struct irqaction cayman_action_smsc = {
- .name = "Cayman SMSC Mux",
- .handler = cayman_interrupt_smsc,
-};
-
-static struct irqaction cayman_action_pci2 = {
- .name = "Cayman PCI2 Mux",
- .handler = cayman_interrupt_pci2,
-};
-
static void enable_cayman_irq(struct irq_data *data)
{
unsigned int irq = data->irq;
@@ -149,6 +139,10 @@ void init_cayman_irq(void)
}
/* Setup the SMSC interrupt */
- setup_irq(SMSC_IRQ, &cayman_action_smsc);
- setup_irq(PCI2_IRQ, &cayman_action_pci2);
+ if (request_irq(SMSC_IRQ, cayman_interrupt_smsc, 0, "Cayman SMSC Mux",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "Cayman SMSC Mux");
+ if (request_irq(PCI2_IRQ, cayman_interrupt_pci2, 0, "Cayman PCI2 Mux",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "Cayman PCI2 Mux");
}
diff --git a/arch/sh/drivers/dma/dma-pvr2.c b/arch/sh/drivers/dma/dma-pvr2.c
index b5dbd1f75768..0e5aa558a5f2 100644
--- a/arch/sh/drivers/dma/dma-pvr2.c
+++ b/arch/sh/drivers/dma/dma-pvr2.c
@@ -64,11 +64,6 @@ static int pvr2_xfer_dma(struct dma_channel *chan)
return 0;
}
-static struct irqaction pvr2_dma_irq = {
- .name = "pvr2 DMA handler",
- .handler = pvr2_dma_interrupt,
-};
-
static struct dma_ops pvr2_dma_ops = {
.request = pvr2_request_dma,
.get_residue = pvr2_get_dma_residue,
@@ -84,7 +79,9 @@ static struct dma_info pvr2_dma_info = {
static int __init pvr2_dma_init(void)
{
- setup_irq(HW_EVENT_PVR2_DMA, &pvr2_dma_irq);
+ if (request_irq(HW_EVENT_PVR2_DMA, pvr2_dma_interrupt, 0,
+ "pvr2 DMA handler", NULL))
+ pr_err("%s: request_irq() failed\n", "pvr2 DMA handler");
request_dma(PVR2_CASCADE_CHAN, "pvr2 cascade");
return register_dmac(&pvr2_dma_info);
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 12/18] sh: replace setup_irq() by request_irq()
@ 2020-02-24 0:51 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:51 UTC (permalink / raw)
To: linux-sh, linux-kernel
Cc: Yoshinori Sato, Rich Felker, Thomas Gleixner, Arnd Bergmann
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/sh/boards/mach-cayman/irq.c | 18 ++++++------------
arch/sh/drivers/dma/dma-pvr2.c | 9 +++------
2 files changed, 9 insertions(+), 18 deletions(-)
diff --git a/arch/sh/boards/mach-cayman/irq.c b/arch/sh/boards/mach-cayman/irq.c
index 3b6ea2d99013..57d015f3c075 100644
--- a/arch/sh/boards/mach-cayman/irq.c
+++ b/arch/sh/boards/mach-cayman/irq.c
@@ -40,16 +40,6 @@ static irqreturn_t cayman_interrupt_pci2(int irq, void *dev_id)
return IRQ_NONE;
}
-static struct irqaction cayman_action_smsc = {
- .name = "Cayman SMSC Mux",
- .handler = cayman_interrupt_smsc,
-};
-
-static struct irqaction cayman_action_pci2 = {
- .name = "Cayman PCI2 Mux",
- .handler = cayman_interrupt_pci2,
-};
-
static void enable_cayman_irq(struct irq_data *data)
{
unsigned int irq = data->irq;
@@ -149,6 +139,10 @@ void init_cayman_irq(void)
}
/* Setup the SMSC interrupt */
- setup_irq(SMSC_IRQ, &cayman_action_smsc);
- setup_irq(PCI2_IRQ, &cayman_action_pci2);
+ if (request_irq(SMSC_IRQ, cayman_interrupt_smsc, 0, "Cayman SMSC Mux",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "Cayman SMSC Mux");
+ if (request_irq(PCI2_IRQ, cayman_interrupt_pci2, 0, "Cayman PCI2 Mux",
+ NULL))
+ pr_err("%s: request_irq() failed\n", "Cayman PCI2 Mux");
}
diff --git a/arch/sh/drivers/dma/dma-pvr2.c b/arch/sh/drivers/dma/dma-pvr2.c
index b5dbd1f75768..0e5aa558a5f2 100644
--- a/arch/sh/drivers/dma/dma-pvr2.c
+++ b/arch/sh/drivers/dma/dma-pvr2.c
@@ -64,11 +64,6 @@ static int pvr2_xfer_dma(struct dma_channel *chan)
return 0;
}
-static struct irqaction pvr2_dma_irq = {
- .name = "pvr2 DMA handler",
- .handler = pvr2_dma_interrupt,
-};
-
static struct dma_ops pvr2_dma_ops = {
.request = pvr2_request_dma,
.get_residue = pvr2_get_dma_residue,
@@ -84,7 +79,9 @@ static struct dma_info pvr2_dma_info = {
static int __init pvr2_dma_init(void)
{
- setup_irq(HW_EVENT_PVR2_DMA, &pvr2_dma_irq);
+ if (request_irq(HW_EVENT_PVR2_DMA, pvr2_dma_interrupt, 0,
+ "pvr2 DMA handler", NULL))
+ pr_err("%s: request_irq() failed\n", "pvr2 DMA handler");
request_dma(PVR2_CASCADE_CHAN, "pvr2 cascade");
return register_dmac(&pvr2_dma_info);
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread
* [PATCH v2 13/18] unicore32: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (13 preceding siblings ...)
(?)
@ 2020-02-24 0:52 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:52 UTC (permalink / raw)
To: linux-kernel
Cc: Guan Xuetao, Kate Stewart, Greg Kroah-Hartman, Enrico Weigelt,
Thomas Gleixner
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/unicore32/kernel/time.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/arch/unicore32/kernel/time.c b/arch/unicore32/kernel/time.c
index 8b217a761bf0..f69a2244ebd6 100644
--- a/arch/unicore32/kernel/time.c
+++ b/arch/unicore32/kernel/time.c
@@ -72,13 +72,6 @@ static struct clocksource cksrc_puv3_oscr = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
-static struct irqaction puv3_timer_irq = {
- .name = "ost0",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = puv3_ost0_interrupt,
- .dev_id = &ckevt_puv3_osmr0,
-};
-
void __init time_init(void)
{
writel(0, OST_OIER); /* disable any timer interrupts */
@@ -94,7 +87,9 @@ void __init time_init(void)
ckevt_puv3_osmr0.min_delta_ticks = MIN_OSCR_DELTA * 2;
ckevt_puv3_osmr0.cpumask = cpumask_of(0);
- setup_irq(IRQ_TIMER0, &puv3_timer_irq);
+ if (request_irq(IRQ_TIMER0, puv3_ost0_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "ost0", &ckevt_puv3_osmr0))
+ pr_err("%s: request_irq() failed\n", "ost0");
clocksource_register_hz(&cksrc_puv3_oscr, CLOCK_TICK_RATE);
clockevents_register_device(&ckevt_puv3_osmr0);
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 14/18] x86: Replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (14 preceding siblings ...)
(?)
@ 2020-02-24 0:52 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:52 UTC (permalink / raw)
To: linux-kernel, x86
Cc: Thomas Gleixner, Ingo Molnar, Borislav Petkov, H. Peter Anvin,
Juergen Gross, Josh Poimboeuf, Masami Hiramatsu, Peter Zijlstra
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/x86/kernel/irqinit.c | 18 +++++++-----------
arch/x86/kernel/time.c | 10 +++-------
2 files changed, 10 insertions(+), 18 deletions(-)
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 16919a9671fa..8b5ee03d3e25 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -44,15 +44,6 @@
* (these are usually mapped into the 0x30-0xff vector range)
*/
-/*
- * IRQ2 is cascade interrupt to second interrupt controller
- */
-static struct irqaction irq2 = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
DEFINE_PER_CPU(vector_irq_t, vector_irq) = {
[0 ... NR_VECTORS - 1] = VECTOR_UNUSED,
};
@@ -104,6 +95,11 @@ void __init native_init_IRQ(void)
idt_setup_apic_and_irq_gates();
lapic_assign_system_vectors();
- if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs())
- setup_irq(2, &irq2);
+ if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs()) {
+ /*
+ * IRQ2 is cascade interrupt to second interrupt controller
+ */
+ if (request_irq(2, no_action, IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
+ }
}
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index d8673d8a779b..0f9cb386d71f 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -62,19 +62,15 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq0 = {
- .handler = timer_interrupt,
- .flags = IRQF_NOBALANCING | IRQF_IRQPOLL | IRQF_TIMER,
- .name = "timer"
-};
-
static void __init setup_default_timer_irq(void)
{
/*
* Unconditionally register the legacy timer; even without legacy
* PIC/PIT we need this for the HPET0 in legacy replacement mode.
*/
- if (setup_irq(0, &irq0))
+ if (request_irq(0, timer_interrupt,
+ IRQF_NOBALANCING | IRQF_IRQPOLL | IRQF_TIMER, "timer",
+ NULL))
pr_info("Failed to register legacy timer interrupt\n");
}
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 15/18] xtensa: replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (15 preceding siblings ...)
(?)
@ 2020-02-24 0:52 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:52 UTC (permalink / raw)
To: linux-xtensa, linux-kernel
Cc: Chris Zankel, Max Filippov, Andrew Morton, Kees Cook,
Thomas Gleixner, Sinan Kaya
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
arch/xtensa/kernel/smp.c | 8 ++------
arch/xtensa/kernel/time.c | 10 +++-------
2 files changed, 5 insertions(+), 13 deletions(-)
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index 83b244ce61ee..b3f34030fa24 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -53,16 +53,12 @@ static void system_flush_invalidate_dcache_range(unsigned long start,
#define IPI_IRQ 0
static irqreturn_t ipi_interrupt(int irq, void *dev_id);
-static struct irqaction ipi_irqaction = {
- .handler = ipi_interrupt,
- .flags = IRQF_PERCPU,
- .name = "ipi",
-};
void ipi_init(void)
{
unsigned irq = irq_create_mapping(NULL, IPI_IRQ);
- setup_irq(irq, &ipi_irqaction);
+ if (request_irq(irq, ipi_interrupt, IRQF_PERCPU, "ipi", NULL))
+ pr_err("%s: request_irq() failed\n", "ipi");
}
static inline unsigned int get_core_count(void)
diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index 69db8c93c1f9..21d604af16b7 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -128,12 +128,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction timer_irqaction = {
- .handler = timer_interrupt,
- .flags = IRQF_TIMER,
- .name = "timer",
-};
-
void local_timer_setup(unsigned cpu)
{
struct ccount_timer *timer = &per_cpu(ccount_timer, cpu);
@@ -199,7 +193,9 @@ void __init time_init(void)
__func__);
clocksource_register_hz(&ccount_clocksource, ccount_freq);
local_timer_setup(0);
- setup_irq(this_cpu_ptr(&ccount_timer)->evt.irq, &timer_irqaction);
+ if (request_irq(this_cpu_ptr(&ccount_timer)->evt.irq, timer_interrupt,
+ IRQF_TIMER, "timer", NULL))
+ pr_err("%s: request_irq() failed\n", "timer");
sched_clock_register(ccount_sched_clock_read, 32, ccount_freq);
timer_probe();
}
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
(?)
@ 2020-02-24 0:52 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:52 UTC (permalink / raw)
To: linux-kernel, linux-arm-kernel, linux-samsung-soc, linux-amlogic
Cc: Daniel Lezcano, Thomas Gleixner, Florian Fainelli, Ray Jui,
Scott Branden, bcm-kernel-feedback-list, Nicolas Saenz Julienne,
Kukjin Kim, Krzysztof Kozlowski, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Barry Song, Uwe Kleine-König, Kevin Hilman, Linus Walleij,
Tony Prisk, Allison Randal, Enrico Weigelt, Greg Kroah-Hartman,
Kate Stewart
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
drivers/clocksource/bcm2835_timer.c | 8 +---
drivers/clocksource/bcm_kona_timer.c | 10 ++---
drivers/clocksource/dw_apb_timer.c | 11 ++---
drivers/clocksource/exynos_mct.c | 12 ++----
drivers/clocksource/mxs_timer.c | 10 +----
drivers/clocksource/nomadik-mtu.c | 11 ++---
drivers/clocksource/samsung_pwm_timer.c | 12 ++----
drivers/clocksource/timer-atlas7.c | 50 +++++++++++------------
drivers/clocksource/timer-cs5535.c | 10 ++---
drivers/clocksource/timer-efm32.c | 10 +----
drivers/clocksource/timer-fsl-ftm.c | 10 +----
drivers/clocksource/timer-imx-gpt.c | 10 +----
drivers/clocksource/timer-integrator-ap.c | 11 ++---
drivers/clocksource/timer-meson6.c | 11 ++---
drivers/clocksource/timer-orion.c | 9 +---
drivers/clocksource/timer-prima2.c | 11 +----
drivers/clocksource/timer-pxa.c | 10 +----
drivers/clocksource/timer-sp804.c | 11 ++---
drivers/clocksource/timer-u300.c | 9 +---
drivers/clocksource/timer-vf-pit.c | 10 +----
drivers/clocksource/timer-vt8500.c | 11 ++---
drivers/clocksource/timer-zevio.c | 13 +++---
include/linux/dw_apb_timer.h | 1 -
23 files changed, 81 insertions(+), 190 deletions(-)
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index b235f446ee50..1592650b2c92 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -31,7 +31,6 @@ struct bcm2835_timer {
void __iomem *compare;
int match_mask;
struct clock_event_device evt;
- struct irqaction act;
};
static void __iomem *system_clock __read_mostly;
@@ -113,12 +112,9 @@ static int __init bcm2835_timer_init(struct device_node *node)
timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;
timer->evt.set_next_event = bcm2835_time_set_next_event;
timer->evt.cpumask = cpumask_of(0);
- timer->act.name = node->name;
- timer->act.flags = IRQF_TIMER | IRQF_SHARED;
- timer->act.dev_id = timer;
- timer->act.handler = bcm2835_time_interrupt;
- ret = setup_irq(irq, &timer->act);
+ ret = request_irq(irq, bcm2835_time_interrupt, IRQF_TIMER | IRQF_SHARED,
+ node->name, timer);
if (ret) {
pr_err("Can't set up timer IRQ\n");
goto err_timer_free;
diff --git a/drivers/clocksource/bcm_kona_timer.c b/drivers/clocksource/bcm_kona_timer.c
index 5c40be9880f5..a50ab5c2154f 100644
--- a/drivers/clocksource/bcm_kona_timer.c
+++ b/drivers/clocksource/bcm_kona_timer.c
@@ -160,12 +160,6 @@ static irqreturn_t kona_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction kona_timer_irq = {
- .name = "Kona Timer Tick",
- .flags = IRQF_TIMER,
- .handler = kona_timer_interrupt,
-};
-
static int __init kona_timer_init(struct device_node *node)
{
u32 freq;
@@ -192,7 +186,9 @@ static int __init kona_timer_init(struct device_node *node)
kona_timer_disable_and_clear(timers.tmr_regs);
kona_timer_clockevents_init();
- setup_irq(timers.tmr_irq, &kona_timer_irq);
+ if (request_irq(timers.tmr_irq, kona_timer_interrupt, IRQF_TIMER,
+ "Kona Timer Tick", NULL))
+ pr_err("%s: request_irq() failed\n", "Kona Timer Tick");
kona_timer_set_next_event((arch_timer_rate / HZ), NULL);
return 0;
diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c
index 654766538f93..b207a77b0831 100644
--- a/drivers/clocksource/dw_apb_timer.c
+++ b/drivers/clocksource/dw_apb_timer.c
@@ -270,15 +270,10 @@ dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
dw_ced->ced.rating = rating;
dw_ced->ced.name = name;
- dw_ced->irqaction.name = dw_ced->ced.name;
- dw_ced->irqaction.handler = dw_apb_clockevent_irq;
- dw_ced->irqaction.dev_id = &dw_ced->ced;
- dw_ced->irqaction.irq = irq;
- dw_ced->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL |
- IRQF_NOBALANCING;
-
dw_ced->eoi = apbt_eoi;
- err = setup_irq(irq, &dw_ced->irqaction);
+ err = request_irq(irq, dw_apb_clockevent_irq,
+ IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
+ dw_ced->ced.name, &dw_ced->ced);
if (err) {
pr_err("failed to request timer irq\n");
kfree(dw_ced);
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index a267fe31ef13..fabad79baafc 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -329,19 +329,15 @@ static irqreturn_t exynos4_mct_comp_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mct_comp_event_irq = {
- .name = "mct_comp_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = exynos4_mct_comp_isr,
- .dev_id = &mct_comp_device,
-};
-
static int exynos4_clockevent_init(void)
{
mct_comp_device.cpumask = cpumask_of(0);
clockevents_config_and_register(&mct_comp_device, clk_rate,
0xf, 0xffffffff);
- setup_irq(mct_irqs[MCT_G0_IRQ], &mct_comp_event_irq);
+ if (request_irq(mct_irqs[MCT_G0_IRQ], exynos4_mct_comp_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "mct_comp_irq",
+ &mct_comp_device))
+ pr_err("%s: request_irq() failed\n", "mct_comp_irq");
return 0;
}
diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index f6ddae30933f..bc96a4cbf26c 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -117,13 +117,6 @@ static irqreturn_t mxs_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mxs_timer_irq = {
- .name = "MXS Timer Tick",
- .dev_id = &mxs_clockevent_device,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = mxs_timer_interrupt,
-};
-
static void mxs_irq_clear(char *state)
{
/* Disable interrupt in timer module */
@@ -277,6 +270,7 @@ static int __init mxs_timer_init(struct device_node *np)
if (irq <= 0)
return -EINVAL;
- return setup_irq(irq, &mxs_timer_irq);
+ return request_irq(irq, mxs_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "MXS Timer Tick", &mxs_clockevent_device);
}
TIMER_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init);
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 3f7fa8c01367..f49a631d8f58 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -181,13 +181,6 @@ static irqreturn_t nmdk_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction nmdk_timer_irq = {
- .name = "Nomadik Timer Tick",
- .flags = IRQF_TIMER,
- .handler = nmdk_timer_interrupt,
- .dev_id = &nmdk_clkevt,
-};
-
static int __init nmdk_timer_init(void __iomem *base, int irq,
struct clk *pclk, struct clk *clk)
{
@@ -232,7 +225,9 @@ static int __init nmdk_timer_init(void __iomem *base, int irq,
sched_clock_register(nomadik_read_sched_clock, 32, rate);
/* Timer 1 is used for events, register irq and clockevents */
- setup_irq(irq, &nmdk_timer_irq);
+ if (request_irq(irq, nmdk_timer_interrupt, IRQF_TIMER,
+ "Nomadik Timer Tick", &nmdk_clkevt))
+ pr_err("%s: request_irq() failed\n", "Nomadik Timer Tick");
nmdk_clkevt.cpumask = cpumask_of(0);
nmdk_clkevt.irq = irq;
clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index dae1b2b5a0c5..f760229d0c7f 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -256,13 +256,6 @@ static irqreturn_t samsung_clock_event_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction samsung_clock_event_irq = {
- .name = "samsung_time_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = samsung_clock_event_isr,
- .dev_id = &time_event_device,
-};
-
static void __init samsung_clockevent_init(void)
{
unsigned long pclk;
@@ -282,7 +275,10 @@ static void __init samsung_clockevent_init(void)
clock_rate, 1, pwm.tcnt_max);
irq_number = pwm.irq[pwm.event_id];
- setup_irq(irq_number, &samsung_clock_event_irq);
+ if (request_irq(irq_number, samsung_clock_event_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "samsung_time_irq",
+ &time_event_device))
+ pr_err("%s: request_irq() failed\n", "samsung_time_irq");
if (pwm.variant.has_tint_cstat) {
u32 mask = (1 << pwm.event_id);
diff --git a/drivers/clocksource/timer-atlas7.c b/drivers/clocksource/timer-atlas7.c
index 93c3ac6d72bd..c21c91c2bc56 100644
--- a/drivers/clocksource/timer-atlas7.c
+++ b/drivers/clocksource/timer-atlas7.c
@@ -159,29 +159,23 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
-
-static struct irqaction sirfsoc_timer1_irq = {
- .name = "sirfsoc_timer1",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
+static unsigned int sirfsoc_timer_irq, sirfsoc_timer1_irq;
static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
{
struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
- struct irqaction *action;
-
- if (cpu == 0)
- action = &sirfsoc_timer_irq;
- else
- action = &sirfsoc_timer1_irq;
+ unsigned int irq;
+ const char *name;
+
+ if (cpu == 0) {
+ irq = sirfsoc_timer_irq;
+ name = "sirfsoc_timer0";
+ } else {
+ irq = sirfsoc_timer1_irq;
+ name = "sirfsoc_timer1";
+ }
- ce->irq = action->irq;
+ ce->irq = irq;
ce->name = "local_timer";
ce->features = CLOCK_EVT_FEAT_ONESHOT;
ce->rating = 200;
@@ -196,9 +190,9 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
ce->min_delta_ticks = 2;
ce->cpumask = cpumask_of(cpu);
- action->dev_id = ce;
- BUG_ON(setup_irq(ce->irq, action));
- irq_force_affinity(action->irq, cpumask_of(cpu));
+ BUG_ON(request_irq(ce->irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER | IRQF_NOBALANCING, name, ce));
+ irq_force_affinity(ce->irq, cpumask_of(cpu));
clockevents_register_device(ce);
return 0;
@@ -206,12 +200,14 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
static int sirfsoc_local_timer_dying_cpu(unsigned int cpu)
{
+ struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
+
sirfsoc_timer_count_disable(1);
if (cpu == 0)
- remove_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ free_irq(sirfsoc_timer_irq, ce);
else
- remove_irq(sirfsoc_timer1_irq.irq, &sirfsoc_timer1_irq);
+ free_irq(sirfsoc_timer1_irq, ce);
return 0;
}
@@ -268,14 +264,14 @@ static int __init sirfsoc_of_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
- if (!sirfsoc_timer_irq.irq) {
+ sirfsoc_timer_irq = irq_of_parse_and_map(np, 0);
+ if (!sirfsoc_timer_irq) {
pr_err("No irq passed for timer0 via DT\n");
return -EINVAL;
}
- sirfsoc_timer1_irq.irq = irq_of_parse_and_map(np, 1);
- if (!sirfsoc_timer1_irq.irq) {
+ sirfsoc_timer1_irq = irq_of_parse_and_map(np, 1);
+ if (!sirfsoc_timer1_irq) {
pr_err("No irq passed for timer1 via DT\n");
return -EINVAL;
}
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 8f6bc536bef2..51ea0509fb25 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -131,12 +131,6 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mfgptirq = {
- .handler = mfgpt_tick,
- .flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- .name = DRV_NAME,
-};
-
static int __init cs5535_mfgpt_init(void)
{
struct cs5535_mfgpt_timer *timer;
@@ -158,7 +152,9 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = setup_irq(timer_irq, &mfgptirq);
+ ret = request_irq(timer_irq, mfgpt_tick,
+ IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
+ DRV_NAME, NULL);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
diff --git a/drivers/clocksource/timer-efm32.c b/drivers/clocksource/timer-efm32.c
index 5a22cb079ad3..441a4b916841 100644
--- a/drivers/clocksource/timer-efm32.c
+++ b/drivers/clocksource/timer-efm32.c
@@ -119,13 +119,6 @@ static struct efm32_clock_event_ddata clock_event_ddata = {
},
};
-static struct irqaction efm32_clock_event_irq = {
- .name = "efm32 clockevent",
- .flags = IRQF_TIMER,
- .handler = efm32_clock_event_handler,
- .dev_id = &clock_event_ddata,
-};
-
static int __init efm32_clocksource_init(struct device_node *np)
{
struct clk *clk;
@@ -230,7 +223,8 @@ static int __init efm32_clockevent_init(struct device_node *np)
DIV_ROUND_CLOSEST(rate, 1024),
0xf, 0xffff);
- ret = setup_irq(irq, &efm32_clock_event_irq);
+ ret = request_irq(irq, efm32_clock_event_handler, IRQF_TIMER,
+ "efm32 clockevent", &clock_event_ddata);
if (ret) {
pr_err("Failed setup irq\n");
goto err_setup_irq;
diff --git a/drivers/clocksource/timer-fsl-ftm.c b/drivers/clocksource/timer-fsl-ftm.c
index a9d9a3ca5996..12a2ed7cfaff 100644
--- a/drivers/clocksource/timer-fsl-ftm.c
+++ b/drivers/clocksource/timer-fsl-ftm.c
@@ -176,13 +176,6 @@ static struct clock_event_device ftm_clockevent = {
.rating = 300,
};
-static struct irqaction ftm_timer_irq = {
- .name = "Freescale ftm timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ftm_evt_interrupt,
- .dev_id = &ftm_clockevent,
-};
-
static int __init ftm_clockevent_init(unsigned long freq, int irq)
{
int err;
@@ -192,7 +185,8 @@ static int __init ftm_clockevent_init(unsigned long freq, int irq)
ftm_reset_counter(priv->clkevt_base);
- err = setup_irq(irq, &ftm_timer_irq);
+ err = request_irq(irq, ftm_evt_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "Freescale ftm timer", &ftm_clockevent);
if (err) {
pr_err("ftm: setup irq failed: %d\n", err);
return err;
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 706c0d0ff56c..7b2c70f2f353 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -67,7 +67,6 @@ struct imx_timer {
struct clk *clk_ipg;
const struct imx_gpt_data *gpt;
struct clock_event_device ced;
- struct irqaction act;
};
struct imx_gpt_data {
@@ -273,7 +272,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
static int __init mxc_clockevent_init(struct imx_timer *imxtm)
{
struct clock_event_device *ced = &imxtm->ced;
- struct irqaction *act = &imxtm->act;
ced->name = "mxc_timer1";
ced->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_DYNIRQ;
@@ -287,12 +285,8 @@ static int __init mxc_clockevent_init(struct imx_timer *imxtm)
clockevents_config_and_register(ced, clk_get_rate(imxtm->clk_per),
0xff, 0xfffffffe);
- act->name = "i.MX Timer Tick";
- act->flags = IRQF_TIMER | IRQF_IRQPOLL;
- act->handler = mxc_timer_interrupt;
- act->dev_id = ced;
-
- return setup_irq(imxtm->irq, act);
+ return request_irq(imxtm->irq, mxc_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "i.MX Timer Tick", ced);
}
static void imx1_gpt_setup_tctl(struct imx_timer *imxtm)
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index c90a69c7b5fa..b0fcbaac58b0 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -123,13 +123,6 @@ static struct clock_event_device integrator_clockevent = {
.rating = 300,
};
-static struct irqaction integrator_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = integrator_timer_interrupt,
- .dev_id = &integrator_clockevent,
-};
-
static int integrator_clockevent_init(unsigned long inrate,
void __iomem *base, int irq)
{
@@ -149,7 +142,9 @@ static int integrator_clockevent_init(unsigned long inrate,
timer_reload = rate / HZ;
writel(ctrl, clkevt_base + TIMER_CTRL);
- ret = setup_irq(irq, &integrator_timer_irq);
+ ret = request_irq(irq, integrator_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "timer",
+ &integrator_clockevent);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-meson6.c b/drivers/clocksource/timer-meson6.c
index 9e8b467c71da..99f5510a2b56 100644
--- a/drivers/clocksource/timer-meson6.c
+++ b/drivers/clocksource/timer-meson6.c
@@ -150,13 +150,6 @@ static irqreturn_t meson6_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction meson6_timer_irq = {
- .name = "meson6_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = meson6_timer_interrupt,
- .dev_id = &meson6_clockevent,
-};
-
static int __init meson6_timer_init(struct device_node *node)
{
u32 val;
@@ -194,7 +187,9 @@ static int __init meson6_timer_init(struct device_node *node)
/* Stop the timer A */
meson6_clkevt_time_stop();
- ret = setup_irq(irq, &meson6_timer_irq);
+ ret = request_irq(irq, meson6_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "meson6_timer",
+ &meson6_clockevent);
if (ret) {
pr_warn("failed to setup irq %d\n", irq);
return ret;
diff --git a/drivers/clocksource/timer-orion.c b/drivers/clocksource/timer-orion.c
index 7d487107e3cd..d01ff4181867 100644
--- a/drivers/clocksource/timer-orion.c
+++ b/drivers/clocksource/timer-orion.c
@@ -114,12 +114,6 @@ static irqreturn_t orion_clkevt_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction orion_clkevt_irq = {
- .name = "orion_event",
- .flags = IRQF_TIMER,
- .handler = orion_clkevt_irq_handler,
-};
-
static int __init orion_timer_init(struct device_node *np)
{
unsigned long rate;
@@ -172,7 +166,8 @@ static int __init orion_timer_init(struct device_node *np)
sched_clock_register(orion_read_sched_clock, 32, rate);
/* setup timer1 as clockevent timer */
- ret = setup_irq(irq, &orion_clkevt_irq);
+ ret = request_irq(irq, orion_clkevt_irq_handler, IRQF_TIMER,
+ "orion_event", NULL);
if (ret) {
pr_err("%pOFn: unable to setup irq\n", np);
return ret;
diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c
index d4a9dcf5fba2..3d202813f992 100644
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -165,14 +165,6 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER,
- .irq = 0,
- .handler = sirfsoc_timer_interrupt,
- .dev_id = &sirfsoc_clockevent,
-};
-
/* Overwrite weak default sched_clock with more precise one */
static u64 notrace sirfsoc_read_sched_clock(void)
{
@@ -234,7 +226,8 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
sched_clock_register(sirfsoc_read_sched_clock, 64, PRIMA2_CLOCK_FREQ);
- ret = setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ ret = request_irq(sirfsoc_timer_irq.irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER, "sirfsoc_timer0", &sirfsoc_clockevent);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-pxa.c b/drivers/clocksource/timer-pxa.c
index 913a5d354a1f..7ad0e5adb2ff 100644
--- a/drivers/clocksource/timer-pxa.c
+++ b/drivers/clocksource/timer-pxa.c
@@ -143,13 +143,6 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
.resume = pxa_timer_resume,
};
-static struct irqaction pxa_ost0_irq = {
- .name = "ost0",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pxa_ost0_interrupt,
- .dev_id = &ckevt_pxa_osmr0,
-};
-
static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
{
int ret;
@@ -161,7 +154,8 @@ static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
ckevt_pxa_osmr0.cpumask = cpumask_of(0);
- ret = setup_irq(irq, &pxa_ost0_irq);
+ ret = request_irq(irq, pxa_ost0_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "ost0", &ckevt_pxa_osmr0);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-sp804.c b/drivers/clocksource/timer-sp804.c
index 9c841980eed1..5cd0abf9b396 100644
--- a/drivers/clocksource/timer-sp804.c
+++ b/drivers/clocksource/timer-sp804.c
@@ -168,13 +168,6 @@ static struct clock_event_device sp804_clockevent = {
.rating = 300,
};
-static struct irqaction sp804_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = sp804_timer_interrupt,
- .dev_id = &sp804_clockevent,
-};
-
int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct clk *clk, const char *name)
{
struct clock_event_device *evt = &sp804_clockevent;
@@ -200,7 +193,9 @@ int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct
writel(0, base + TIMER_CTRL);
- setup_irq(irq, &sp804_timer_irq);
+ if (request_irq(irq, sp804_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &sp804_clockevent))
+ pr_err("%s: request_irq() failed\n", "timer");
clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
return 0;
diff --git a/drivers/clocksource/timer-u300.c b/drivers/clocksource/timer-u300.c
index 32adc3057dda..37cba8dfd45f 100644
--- a/drivers/clocksource/timer-u300.c
+++ b/drivers/clocksource/timer-u300.c
@@ -330,12 +330,6 @@ static irqreturn_t u300_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction u300_timer_irq = {
- .name = "U300 Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = u300_timer_interrupt,
-};
-
/*
* Override the global weak sched_clock symbol with this
* local implementation which uses the clocksource to get some
@@ -420,7 +414,8 @@ static int __init u300_timer_init_of(struct device_node *np)
u300_timer_base + U300_TIMER_APP_RGPT1);
/* Set up the IRQ handler */
- ret = setup_irq(irq, &u300_timer_irq);
+ ret = request_irq(irq, u300_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "U300 Timer Tick", NULL);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-vf-pit.c b/drivers/clocksource/timer-vf-pit.c
index fef0bb4e0c8c..7ad4a8b008c2 100644
--- a/drivers/clocksource/timer-vf-pit.c
+++ b/drivers/clocksource/timer-vf-pit.c
@@ -123,19 +123,13 @@ static struct clock_event_device clockevent_pit = {
.rating = 300,
};
-static struct irqaction pit_timer_irq = {
- .name = "VF pit timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pit_timer_interrupt,
- .dev_id = &clockevent_pit,
-};
-
static int __init pit_clockevent_init(unsigned long rate, int irq)
{
__raw_writel(0, clkevt_base + PITTCTRL);
__raw_writel(PITTFLG_TIF, clkevt_base + PITTFLG);
- BUG_ON(setup_irq(irq, &pit_timer_irq));
+ BUG_ON(request_irq(irq, pit_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "VF pit timer", &clockevent_pit);
clockevent_pit.cpumask = cpumask_of(0);
clockevent_pit.irq = irq;
diff --git a/drivers/clocksource/timer-vt8500.c b/drivers/clocksource/timer-vt8500.c
index bb424bcefbb3..a469b1b5f972 100644
--- a/drivers/clocksource/timer-vt8500.c
+++ b/drivers/clocksource/timer-vt8500.c
@@ -101,13 +101,6 @@ static irqreturn_t vt8500_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq = {
- .name = "vt8500_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = vt8500_timer_interrupt,
- .dev_id = &clockevent,
-};
-
static int __init vt8500_timer_init(struct device_node *np)
{
int timer_irq, ret;
@@ -139,7 +132,9 @@ static int __init vt8500_timer_init(struct device_node *np)
clockevent.cpumask = cpumask_of(0);
- ret = setup_irq(timer_irq, &irq);
+ ret = request_irq(timer_irq, vt8500_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "vt8500_timer",
+ &clockevent);
if (ret) {
pr_err("%s: setup_irq failed for %s\n", __func__,
clockevent.name);
diff --git a/drivers/clocksource/timer-zevio.c b/drivers/clocksource/timer-zevio.c
index c0041561f1be..ecaa3568841c 100644
--- a/drivers/clocksource/timer-zevio.c
+++ b/drivers/clocksource/timer-zevio.c
@@ -53,7 +53,6 @@ struct zevio_timer {
struct clk *clk;
struct clock_event_device clkevt;
- struct irqaction clkevt_irq;
char clocksource_name[64];
char clockevent_name[64];
@@ -172,12 +171,12 @@ static int __init zevio_timer_add(struct device_node *node)
/* Interrupt to occur when timer value matches 0 */
writel(0, timer->base + IO_MATCH(TIMER_MATCH));
- timer->clkevt_irq.name = timer->clockevent_name;
- timer->clkevt_irq.handler = zevio_timer_interrupt;
- timer->clkevt_irq.dev_id = timer;
- timer->clkevt_irq.flags = IRQF_TIMER | IRQF_IRQPOLL;
-
- setup_irq(irqnr, &timer->clkevt_irq);
+ if (request_irq(irqnr, zevio_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL,
+ timer->clockevent_name, timer)) {
+ pr_err("%s: request_irq() failed\n",
+ timer->clockevent_name);
+ }
clockevents_config_and_register(&timer->clkevt,
clk_get_rate(timer->clk), 0x0001, 0xffff);
diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h
index 14f072edbca5..82ebf9223948 100644
--- a/include/linux/dw_apb_timer.h
+++ b/include/linux/dw_apb_timer.h
@@ -25,7 +25,6 @@ struct dw_apb_timer {
struct dw_apb_clock_event_device {
struct clock_event_device ced;
struct dw_apb_timer timer;
- struct irqaction irqaction;
void (*eoi)(struct dw_apb_timer *);
};
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-24 0:52 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:52 UTC (permalink / raw)
To: linux-kernel, linux-arm-kernel, linux-samsung-soc, linux-amlogic
Cc: Kate Stewart, Linus Walleij, Shawn Guo, Fabio Estevam,
Florian Fainelli, Kevin Hilman, Daniel Lezcano,
Krzysztof Kozlowski, Kukjin Kim, bcm-kernel-feedback-list,
NXP Linux Team, Uwe Kleine-König, Ray Jui, Sascha Hauer,
Thomas Gleixner, Allison Randal, Barry Song, Scott Branden,
Greg Kroah-Hartman, Tony Prisk, Pengutronix Kernel Team,
Enrico Weigelt, Nicolas Saenz Julienne
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
drivers/clocksource/bcm2835_timer.c | 8 +---
drivers/clocksource/bcm_kona_timer.c | 10 ++---
drivers/clocksource/dw_apb_timer.c | 11 ++---
drivers/clocksource/exynos_mct.c | 12 ++----
drivers/clocksource/mxs_timer.c | 10 +----
drivers/clocksource/nomadik-mtu.c | 11 ++---
drivers/clocksource/samsung_pwm_timer.c | 12 ++----
drivers/clocksource/timer-atlas7.c | 50 +++++++++++------------
drivers/clocksource/timer-cs5535.c | 10 ++---
drivers/clocksource/timer-efm32.c | 10 +----
drivers/clocksource/timer-fsl-ftm.c | 10 +----
drivers/clocksource/timer-imx-gpt.c | 10 +----
drivers/clocksource/timer-integrator-ap.c | 11 ++---
drivers/clocksource/timer-meson6.c | 11 ++---
drivers/clocksource/timer-orion.c | 9 +---
drivers/clocksource/timer-prima2.c | 11 +----
drivers/clocksource/timer-pxa.c | 10 +----
drivers/clocksource/timer-sp804.c | 11 ++---
drivers/clocksource/timer-u300.c | 9 +---
drivers/clocksource/timer-vf-pit.c | 10 +----
drivers/clocksource/timer-vt8500.c | 11 ++---
drivers/clocksource/timer-zevio.c | 13 +++---
include/linux/dw_apb_timer.h | 1 -
23 files changed, 81 insertions(+), 190 deletions(-)
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index b235f446ee50..1592650b2c92 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -31,7 +31,6 @@ struct bcm2835_timer {
void __iomem *compare;
int match_mask;
struct clock_event_device evt;
- struct irqaction act;
};
static void __iomem *system_clock __read_mostly;
@@ -113,12 +112,9 @@ static int __init bcm2835_timer_init(struct device_node *node)
timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;
timer->evt.set_next_event = bcm2835_time_set_next_event;
timer->evt.cpumask = cpumask_of(0);
- timer->act.name = node->name;
- timer->act.flags = IRQF_TIMER | IRQF_SHARED;
- timer->act.dev_id = timer;
- timer->act.handler = bcm2835_time_interrupt;
- ret = setup_irq(irq, &timer->act);
+ ret = request_irq(irq, bcm2835_time_interrupt, IRQF_TIMER | IRQF_SHARED,
+ node->name, timer);
if (ret) {
pr_err("Can't set up timer IRQ\n");
goto err_timer_free;
diff --git a/drivers/clocksource/bcm_kona_timer.c b/drivers/clocksource/bcm_kona_timer.c
index 5c40be9880f5..a50ab5c2154f 100644
--- a/drivers/clocksource/bcm_kona_timer.c
+++ b/drivers/clocksource/bcm_kona_timer.c
@@ -160,12 +160,6 @@ static irqreturn_t kona_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction kona_timer_irq = {
- .name = "Kona Timer Tick",
- .flags = IRQF_TIMER,
- .handler = kona_timer_interrupt,
-};
-
static int __init kona_timer_init(struct device_node *node)
{
u32 freq;
@@ -192,7 +186,9 @@ static int __init kona_timer_init(struct device_node *node)
kona_timer_disable_and_clear(timers.tmr_regs);
kona_timer_clockevents_init();
- setup_irq(timers.tmr_irq, &kona_timer_irq);
+ if (request_irq(timers.tmr_irq, kona_timer_interrupt, IRQF_TIMER,
+ "Kona Timer Tick", NULL))
+ pr_err("%s: request_irq() failed\n", "Kona Timer Tick");
kona_timer_set_next_event((arch_timer_rate / HZ), NULL);
return 0;
diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c
index 654766538f93..b207a77b0831 100644
--- a/drivers/clocksource/dw_apb_timer.c
+++ b/drivers/clocksource/dw_apb_timer.c
@@ -270,15 +270,10 @@ dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
dw_ced->ced.rating = rating;
dw_ced->ced.name = name;
- dw_ced->irqaction.name = dw_ced->ced.name;
- dw_ced->irqaction.handler = dw_apb_clockevent_irq;
- dw_ced->irqaction.dev_id = &dw_ced->ced;
- dw_ced->irqaction.irq = irq;
- dw_ced->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL |
- IRQF_NOBALANCING;
-
dw_ced->eoi = apbt_eoi;
- err = setup_irq(irq, &dw_ced->irqaction);
+ err = request_irq(irq, dw_apb_clockevent_irq,
+ IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
+ dw_ced->ced.name, &dw_ced->ced);
if (err) {
pr_err("failed to request timer irq\n");
kfree(dw_ced);
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index a267fe31ef13..fabad79baafc 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -329,19 +329,15 @@ static irqreturn_t exynos4_mct_comp_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mct_comp_event_irq = {
- .name = "mct_comp_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = exynos4_mct_comp_isr,
- .dev_id = &mct_comp_device,
-};
-
static int exynos4_clockevent_init(void)
{
mct_comp_device.cpumask = cpumask_of(0);
clockevents_config_and_register(&mct_comp_device, clk_rate,
0xf, 0xffffffff);
- setup_irq(mct_irqs[MCT_G0_IRQ], &mct_comp_event_irq);
+ if (request_irq(mct_irqs[MCT_G0_IRQ], exynos4_mct_comp_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "mct_comp_irq",
+ &mct_comp_device))
+ pr_err("%s: request_irq() failed\n", "mct_comp_irq");
return 0;
}
diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index f6ddae30933f..bc96a4cbf26c 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -117,13 +117,6 @@ static irqreturn_t mxs_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mxs_timer_irq = {
- .name = "MXS Timer Tick",
- .dev_id = &mxs_clockevent_device,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = mxs_timer_interrupt,
-};
-
static void mxs_irq_clear(char *state)
{
/* Disable interrupt in timer module */
@@ -277,6 +270,7 @@ static int __init mxs_timer_init(struct device_node *np)
if (irq <= 0)
return -EINVAL;
- return setup_irq(irq, &mxs_timer_irq);
+ return request_irq(irq, mxs_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "MXS Timer Tick", &mxs_clockevent_device);
}
TIMER_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init);
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 3f7fa8c01367..f49a631d8f58 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -181,13 +181,6 @@ static irqreturn_t nmdk_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction nmdk_timer_irq = {
- .name = "Nomadik Timer Tick",
- .flags = IRQF_TIMER,
- .handler = nmdk_timer_interrupt,
- .dev_id = &nmdk_clkevt,
-};
-
static int __init nmdk_timer_init(void __iomem *base, int irq,
struct clk *pclk, struct clk *clk)
{
@@ -232,7 +225,9 @@ static int __init nmdk_timer_init(void __iomem *base, int irq,
sched_clock_register(nomadik_read_sched_clock, 32, rate);
/* Timer 1 is used for events, register irq and clockevents */
- setup_irq(irq, &nmdk_timer_irq);
+ if (request_irq(irq, nmdk_timer_interrupt, IRQF_TIMER,
+ "Nomadik Timer Tick", &nmdk_clkevt))
+ pr_err("%s: request_irq() failed\n", "Nomadik Timer Tick");
nmdk_clkevt.cpumask = cpumask_of(0);
nmdk_clkevt.irq = irq;
clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index dae1b2b5a0c5..f760229d0c7f 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -256,13 +256,6 @@ static irqreturn_t samsung_clock_event_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction samsung_clock_event_irq = {
- .name = "samsung_time_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = samsung_clock_event_isr,
- .dev_id = &time_event_device,
-};
-
static void __init samsung_clockevent_init(void)
{
unsigned long pclk;
@@ -282,7 +275,10 @@ static void __init samsung_clockevent_init(void)
clock_rate, 1, pwm.tcnt_max);
irq_number = pwm.irq[pwm.event_id];
- setup_irq(irq_number, &samsung_clock_event_irq);
+ if (request_irq(irq_number, samsung_clock_event_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "samsung_time_irq",
+ &time_event_device))
+ pr_err("%s: request_irq() failed\n", "samsung_time_irq");
if (pwm.variant.has_tint_cstat) {
u32 mask = (1 << pwm.event_id);
diff --git a/drivers/clocksource/timer-atlas7.c b/drivers/clocksource/timer-atlas7.c
index 93c3ac6d72bd..c21c91c2bc56 100644
--- a/drivers/clocksource/timer-atlas7.c
+++ b/drivers/clocksource/timer-atlas7.c
@@ -159,29 +159,23 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
-
-static struct irqaction sirfsoc_timer1_irq = {
- .name = "sirfsoc_timer1",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
+static unsigned int sirfsoc_timer_irq, sirfsoc_timer1_irq;
static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
{
struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
- struct irqaction *action;
-
- if (cpu == 0)
- action = &sirfsoc_timer_irq;
- else
- action = &sirfsoc_timer1_irq;
+ unsigned int irq;
+ const char *name;
+
+ if (cpu == 0) {
+ irq = sirfsoc_timer_irq;
+ name = "sirfsoc_timer0";
+ } else {
+ irq = sirfsoc_timer1_irq;
+ name = "sirfsoc_timer1";
+ }
- ce->irq = action->irq;
+ ce->irq = irq;
ce->name = "local_timer";
ce->features = CLOCK_EVT_FEAT_ONESHOT;
ce->rating = 200;
@@ -196,9 +190,9 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
ce->min_delta_ticks = 2;
ce->cpumask = cpumask_of(cpu);
- action->dev_id = ce;
- BUG_ON(setup_irq(ce->irq, action));
- irq_force_affinity(action->irq, cpumask_of(cpu));
+ BUG_ON(request_irq(ce->irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER | IRQF_NOBALANCING, name, ce));
+ irq_force_affinity(ce->irq, cpumask_of(cpu));
clockevents_register_device(ce);
return 0;
@@ -206,12 +200,14 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
static int sirfsoc_local_timer_dying_cpu(unsigned int cpu)
{
+ struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
+
sirfsoc_timer_count_disable(1);
if (cpu == 0)
- remove_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ free_irq(sirfsoc_timer_irq, ce);
else
- remove_irq(sirfsoc_timer1_irq.irq, &sirfsoc_timer1_irq);
+ free_irq(sirfsoc_timer1_irq, ce);
return 0;
}
@@ -268,14 +264,14 @@ static int __init sirfsoc_of_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
- if (!sirfsoc_timer_irq.irq) {
+ sirfsoc_timer_irq = irq_of_parse_and_map(np, 0);
+ if (!sirfsoc_timer_irq) {
pr_err("No irq passed for timer0 via DT\n");
return -EINVAL;
}
- sirfsoc_timer1_irq.irq = irq_of_parse_and_map(np, 1);
- if (!sirfsoc_timer1_irq.irq) {
+ sirfsoc_timer1_irq = irq_of_parse_and_map(np, 1);
+ if (!sirfsoc_timer1_irq) {
pr_err("No irq passed for timer1 via DT\n");
return -EINVAL;
}
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 8f6bc536bef2..51ea0509fb25 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -131,12 +131,6 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mfgptirq = {
- .handler = mfgpt_tick,
- .flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- .name = DRV_NAME,
-};
-
static int __init cs5535_mfgpt_init(void)
{
struct cs5535_mfgpt_timer *timer;
@@ -158,7 +152,9 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = setup_irq(timer_irq, &mfgptirq);
+ ret = request_irq(timer_irq, mfgpt_tick,
+ IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
+ DRV_NAME, NULL);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
diff --git a/drivers/clocksource/timer-efm32.c b/drivers/clocksource/timer-efm32.c
index 5a22cb079ad3..441a4b916841 100644
--- a/drivers/clocksource/timer-efm32.c
+++ b/drivers/clocksource/timer-efm32.c
@@ -119,13 +119,6 @@ static struct efm32_clock_event_ddata clock_event_ddata = {
},
};
-static struct irqaction efm32_clock_event_irq = {
- .name = "efm32 clockevent",
- .flags = IRQF_TIMER,
- .handler = efm32_clock_event_handler,
- .dev_id = &clock_event_ddata,
-};
-
static int __init efm32_clocksource_init(struct device_node *np)
{
struct clk *clk;
@@ -230,7 +223,8 @@ static int __init efm32_clockevent_init(struct device_node *np)
DIV_ROUND_CLOSEST(rate, 1024),
0xf, 0xffff);
- ret = setup_irq(irq, &efm32_clock_event_irq);
+ ret = request_irq(irq, efm32_clock_event_handler, IRQF_TIMER,
+ "efm32 clockevent", &clock_event_ddata);
if (ret) {
pr_err("Failed setup irq\n");
goto err_setup_irq;
diff --git a/drivers/clocksource/timer-fsl-ftm.c b/drivers/clocksource/timer-fsl-ftm.c
index a9d9a3ca5996..12a2ed7cfaff 100644
--- a/drivers/clocksource/timer-fsl-ftm.c
+++ b/drivers/clocksource/timer-fsl-ftm.c
@@ -176,13 +176,6 @@ static struct clock_event_device ftm_clockevent = {
.rating = 300,
};
-static struct irqaction ftm_timer_irq = {
- .name = "Freescale ftm timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ftm_evt_interrupt,
- .dev_id = &ftm_clockevent,
-};
-
static int __init ftm_clockevent_init(unsigned long freq, int irq)
{
int err;
@@ -192,7 +185,8 @@ static int __init ftm_clockevent_init(unsigned long freq, int irq)
ftm_reset_counter(priv->clkevt_base);
- err = setup_irq(irq, &ftm_timer_irq);
+ err = request_irq(irq, ftm_evt_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "Freescale ftm timer", &ftm_clockevent);
if (err) {
pr_err("ftm: setup irq failed: %d\n", err);
return err;
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 706c0d0ff56c..7b2c70f2f353 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -67,7 +67,6 @@ struct imx_timer {
struct clk *clk_ipg;
const struct imx_gpt_data *gpt;
struct clock_event_device ced;
- struct irqaction act;
};
struct imx_gpt_data {
@@ -273,7 +272,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
static int __init mxc_clockevent_init(struct imx_timer *imxtm)
{
struct clock_event_device *ced = &imxtm->ced;
- struct irqaction *act = &imxtm->act;
ced->name = "mxc_timer1";
ced->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_DYNIRQ;
@@ -287,12 +285,8 @@ static int __init mxc_clockevent_init(struct imx_timer *imxtm)
clockevents_config_and_register(ced, clk_get_rate(imxtm->clk_per),
0xff, 0xfffffffe);
- act->name = "i.MX Timer Tick";
- act->flags = IRQF_TIMER | IRQF_IRQPOLL;
- act->handler = mxc_timer_interrupt;
- act->dev_id = ced;
-
- return setup_irq(imxtm->irq, act);
+ return request_irq(imxtm->irq, mxc_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "i.MX Timer Tick", ced);
}
static void imx1_gpt_setup_tctl(struct imx_timer *imxtm)
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index c90a69c7b5fa..b0fcbaac58b0 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -123,13 +123,6 @@ static struct clock_event_device integrator_clockevent = {
.rating = 300,
};
-static struct irqaction integrator_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = integrator_timer_interrupt,
- .dev_id = &integrator_clockevent,
-};
-
static int integrator_clockevent_init(unsigned long inrate,
void __iomem *base, int irq)
{
@@ -149,7 +142,9 @@ static int integrator_clockevent_init(unsigned long inrate,
timer_reload = rate / HZ;
writel(ctrl, clkevt_base + TIMER_CTRL);
- ret = setup_irq(irq, &integrator_timer_irq);
+ ret = request_irq(irq, integrator_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "timer",
+ &integrator_clockevent);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-meson6.c b/drivers/clocksource/timer-meson6.c
index 9e8b467c71da..99f5510a2b56 100644
--- a/drivers/clocksource/timer-meson6.c
+++ b/drivers/clocksource/timer-meson6.c
@@ -150,13 +150,6 @@ static irqreturn_t meson6_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction meson6_timer_irq = {
- .name = "meson6_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = meson6_timer_interrupt,
- .dev_id = &meson6_clockevent,
-};
-
static int __init meson6_timer_init(struct device_node *node)
{
u32 val;
@@ -194,7 +187,9 @@ static int __init meson6_timer_init(struct device_node *node)
/* Stop the timer A */
meson6_clkevt_time_stop();
- ret = setup_irq(irq, &meson6_timer_irq);
+ ret = request_irq(irq, meson6_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "meson6_timer",
+ &meson6_clockevent);
if (ret) {
pr_warn("failed to setup irq %d\n", irq);
return ret;
diff --git a/drivers/clocksource/timer-orion.c b/drivers/clocksource/timer-orion.c
index 7d487107e3cd..d01ff4181867 100644
--- a/drivers/clocksource/timer-orion.c
+++ b/drivers/clocksource/timer-orion.c
@@ -114,12 +114,6 @@ static irqreturn_t orion_clkevt_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction orion_clkevt_irq = {
- .name = "orion_event",
- .flags = IRQF_TIMER,
- .handler = orion_clkevt_irq_handler,
-};
-
static int __init orion_timer_init(struct device_node *np)
{
unsigned long rate;
@@ -172,7 +166,8 @@ static int __init orion_timer_init(struct device_node *np)
sched_clock_register(orion_read_sched_clock, 32, rate);
/* setup timer1 as clockevent timer */
- ret = setup_irq(irq, &orion_clkevt_irq);
+ ret = request_irq(irq, orion_clkevt_irq_handler, IRQF_TIMER,
+ "orion_event", NULL);
if (ret) {
pr_err("%pOFn: unable to setup irq\n", np);
return ret;
diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c
index d4a9dcf5fba2..3d202813f992 100644
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -165,14 +165,6 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER,
- .irq = 0,
- .handler = sirfsoc_timer_interrupt,
- .dev_id = &sirfsoc_clockevent,
-};
-
/* Overwrite weak default sched_clock with more precise one */
static u64 notrace sirfsoc_read_sched_clock(void)
{
@@ -234,7 +226,8 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
sched_clock_register(sirfsoc_read_sched_clock, 64, PRIMA2_CLOCK_FREQ);
- ret = setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ ret = request_irq(sirfsoc_timer_irq.irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER, "sirfsoc_timer0", &sirfsoc_clockevent);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-pxa.c b/drivers/clocksource/timer-pxa.c
index 913a5d354a1f..7ad0e5adb2ff 100644
--- a/drivers/clocksource/timer-pxa.c
+++ b/drivers/clocksource/timer-pxa.c
@@ -143,13 +143,6 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
.resume = pxa_timer_resume,
};
-static struct irqaction pxa_ost0_irq = {
- .name = "ost0",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pxa_ost0_interrupt,
- .dev_id = &ckevt_pxa_osmr0,
-};
-
static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
{
int ret;
@@ -161,7 +154,8 @@ static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
ckevt_pxa_osmr0.cpumask = cpumask_of(0);
- ret = setup_irq(irq, &pxa_ost0_irq);
+ ret = request_irq(irq, pxa_ost0_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "ost0", &ckevt_pxa_osmr0);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-sp804.c b/drivers/clocksource/timer-sp804.c
index 9c841980eed1..5cd0abf9b396 100644
--- a/drivers/clocksource/timer-sp804.c
+++ b/drivers/clocksource/timer-sp804.c
@@ -168,13 +168,6 @@ static struct clock_event_device sp804_clockevent = {
.rating = 300,
};
-static struct irqaction sp804_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = sp804_timer_interrupt,
- .dev_id = &sp804_clockevent,
-};
-
int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct clk *clk, const char *name)
{
struct clock_event_device *evt = &sp804_clockevent;
@@ -200,7 +193,9 @@ int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct
writel(0, base + TIMER_CTRL);
- setup_irq(irq, &sp804_timer_irq);
+ if (request_irq(irq, sp804_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &sp804_clockevent))
+ pr_err("%s: request_irq() failed\n", "timer");
clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
return 0;
diff --git a/drivers/clocksource/timer-u300.c b/drivers/clocksource/timer-u300.c
index 32adc3057dda..37cba8dfd45f 100644
--- a/drivers/clocksource/timer-u300.c
+++ b/drivers/clocksource/timer-u300.c
@@ -330,12 +330,6 @@ static irqreturn_t u300_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction u300_timer_irq = {
- .name = "U300 Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = u300_timer_interrupt,
-};
-
/*
* Override the global weak sched_clock symbol with this
* local implementation which uses the clocksource to get some
@@ -420,7 +414,8 @@ static int __init u300_timer_init_of(struct device_node *np)
u300_timer_base + U300_TIMER_APP_RGPT1);
/* Set up the IRQ handler */
- ret = setup_irq(irq, &u300_timer_irq);
+ ret = request_irq(irq, u300_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "U300 Timer Tick", NULL);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-vf-pit.c b/drivers/clocksource/timer-vf-pit.c
index fef0bb4e0c8c..7ad4a8b008c2 100644
--- a/drivers/clocksource/timer-vf-pit.c
+++ b/drivers/clocksource/timer-vf-pit.c
@@ -123,19 +123,13 @@ static struct clock_event_device clockevent_pit = {
.rating = 300,
};
-static struct irqaction pit_timer_irq = {
- .name = "VF pit timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pit_timer_interrupt,
- .dev_id = &clockevent_pit,
-};
-
static int __init pit_clockevent_init(unsigned long rate, int irq)
{
__raw_writel(0, clkevt_base + PITTCTRL);
__raw_writel(PITTFLG_TIF, clkevt_base + PITTFLG);
- BUG_ON(setup_irq(irq, &pit_timer_irq));
+ BUG_ON(request_irq(irq, pit_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "VF pit timer", &clockevent_pit);
clockevent_pit.cpumask = cpumask_of(0);
clockevent_pit.irq = irq;
diff --git a/drivers/clocksource/timer-vt8500.c b/drivers/clocksource/timer-vt8500.c
index bb424bcefbb3..a469b1b5f972 100644
--- a/drivers/clocksource/timer-vt8500.c
+++ b/drivers/clocksource/timer-vt8500.c
@@ -101,13 +101,6 @@ static irqreturn_t vt8500_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq = {
- .name = "vt8500_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = vt8500_timer_interrupt,
- .dev_id = &clockevent,
-};
-
static int __init vt8500_timer_init(struct device_node *np)
{
int timer_irq, ret;
@@ -139,7 +132,9 @@ static int __init vt8500_timer_init(struct device_node *np)
clockevent.cpumask = cpumask_of(0);
- ret = setup_irq(timer_irq, &irq);
+ ret = request_irq(timer_irq, vt8500_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "vt8500_timer",
+ &clockevent);
if (ret) {
pr_err("%s: setup_irq failed for %s\n", __func__,
clockevent.name);
diff --git a/drivers/clocksource/timer-zevio.c b/drivers/clocksource/timer-zevio.c
index c0041561f1be..ecaa3568841c 100644
--- a/drivers/clocksource/timer-zevio.c
+++ b/drivers/clocksource/timer-zevio.c
@@ -53,7 +53,6 @@ struct zevio_timer {
struct clk *clk;
struct clock_event_device clkevt;
- struct irqaction clkevt_irq;
char clocksource_name[64];
char clockevent_name[64];
@@ -172,12 +171,12 @@ static int __init zevio_timer_add(struct device_node *node)
/* Interrupt to occur when timer value matches 0 */
writel(0, timer->base + IO_MATCH(TIMER_MATCH));
- timer->clkevt_irq.name = timer->clockevent_name;
- timer->clkevt_irq.handler = zevio_timer_interrupt;
- timer->clkevt_irq.dev_id = timer;
- timer->clkevt_irq.flags = IRQF_TIMER | IRQF_IRQPOLL;
-
- setup_irq(irqnr, &timer->clkevt_irq);
+ if (request_irq(irqnr, zevio_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL,
+ timer->clockevent_name, timer)) {
+ pr_err("%s: request_irq() failed\n",
+ timer->clockevent_name);
+ }
clockevents_config_and_register(&timer->clkevt,
clk_get_rate(timer->clk), 0x0001, 0xffff);
diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h
index 14f072edbca5..82ebf9223948 100644
--- a/include/linux/dw_apb_timer.h
+++ b/include/linux/dw_apb_timer.h
@@ -25,7 +25,6 @@ struct dw_apb_timer {
struct dw_apb_clock_event_device {
struct clock_event_device ced;
struct dw_apb_timer timer;
- struct irqaction irqaction;
void (*eoi)(struct dw_apb_timer *);
};
--
2.25.1
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^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-24 0:52 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:52 UTC (permalink / raw)
To: linux-kernel, linux-arm-kernel, linux-samsung-soc, linux-amlogic
Cc: Kate Stewart, Linus Walleij, Shawn Guo, Fabio Estevam,
Florian Fainelli, Kevin Hilman, Daniel Lezcano,
Krzysztof Kozlowski, Kukjin Kim, bcm-kernel-feedback-list,
NXP Linux Team, Uwe Kleine-König, Ray Jui, Sascha Hauer,
Thomas Gleixner, Allison Randal, Barry Song, Scott Branden,
Greg Kroah-Hartman, Tony Prisk, Pengutronix Kernel Team,
Enrico Weigelt, Nicolas Saenz Julienne
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
drivers/clocksource/bcm2835_timer.c | 8 +---
drivers/clocksource/bcm_kona_timer.c | 10 ++---
drivers/clocksource/dw_apb_timer.c | 11 ++---
drivers/clocksource/exynos_mct.c | 12 ++----
drivers/clocksource/mxs_timer.c | 10 +----
drivers/clocksource/nomadik-mtu.c | 11 ++---
drivers/clocksource/samsung_pwm_timer.c | 12 ++----
drivers/clocksource/timer-atlas7.c | 50 +++++++++++------------
drivers/clocksource/timer-cs5535.c | 10 ++---
drivers/clocksource/timer-efm32.c | 10 +----
drivers/clocksource/timer-fsl-ftm.c | 10 +----
drivers/clocksource/timer-imx-gpt.c | 10 +----
drivers/clocksource/timer-integrator-ap.c | 11 ++---
drivers/clocksource/timer-meson6.c | 11 ++---
drivers/clocksource/timer-orion.c | 9 +---
drivers/clocksource/timer-prima2.c | 11 +----
drivers/clocksource/timer-pxa.c | 10 +----
drivers/clocksource/timer-sp804.c | 11 ++---
drivers/clocksource/timer-u300.c | 9 +---
drivers/clocksource/timer-vf-pit.c | 10 +----
drivers/clocksource/timer-vt8500.c | 11 ++---
drivers/clocksource/timer-zevio.c | 13 +++---
include/linux/dw_apb_timer.h | 1 -
23 files changed, 81 insertions(+), 190 deletions(-)
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index b235f446ee50..1592650b2c92 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -31,7 +31,6 @@ struct bcm2835_timer {
void __iomem *compare;
int match_mask;
struct clock_event_device evt;
- struct irqaction act;
};
static void __iomem *system_clock __read_mostly;
@@ -113,12 +112,9 @@ static int __init bcm2835_timer_init(struct device_node *node)
timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;
timer->evt.set_next_event = bcm2835_time_set_next_event;
timer->evt.cpumask = cpumask_of(0);
- timer->act.name = node->name;
- timer->act.flags = IRQF_TIMER | IRQF_SHARED;
- timer->act.dev_id = timer;
- timer->act.handler = bcm2835_time_interrupt;
- ret = setup_irq(irq, &timer->act);
+ ret = request_irq(irq, bcm2835_time_interrupt, IRQF_TIMER | IRQF_SHARED,
+ node->name, timer);
if (ret) {
pr_err("Can't set up timer IRQ\n");
goto err_timer_free;
diff --git a/drivers/clocksource/bcm_kona_timer.c b/drivers/clocksource/bcm_kona_timer.c
index 5c40be9880f5..a50ab5c2154f 100644
--- a/drivers/clocksource/bcm_kona_timer.c
+++ b/drivers/clocksource/bcm_kona_timer.c
@@ -160,12 +160,6 @@ static irqreturn_t kona_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction kona_timer_irq = {
- .name = "Kona Timer Tick",
- .flags = IRQF_TIMER,
- .handler = kona_timer_interrupt,
-};
-
static int __init kona_timer_init(struct device_node *node)
{
u32 freq;
@@ -192,7 +186,9 @@ static int __init kona_timer_init(struct device_node *node)
kona_timer_disable_and_clear(timers.tmr_regs);
kona_timer_clockevents_init();
- setup_irq(timers.tmr_irq, &kona_timer_irq);
+ if (request_irq(timers.tmr_irq, kona_timer_interrupt, IRQF_TIMER,
+ "Kona Timer Tick", NULL))
+ pr_err("%s: request_irq() failed\n", "Kona Timer Tick");
kona_timer_set_next_event((arch_timer_rate / HZ), NULL);
return 0;
diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c
index 654766538f93..b207a77b0831 100644
--- a/drivers/clocksource/dw_apb_timer.c
+++ b/drivers/clocksource/dw_apb_timer.c
@@ -270,15 +270,10 @@ dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
dw_ced->ced.rating = rating;
dw_ced->ced.name = name;
- dw_ced->irqaction.name = dw_ced->ced.name;
- dw_ced->irqaction.handler = dw_apb_clockevent_irq;
- dw_ced->irqaction.dev_id = &dw_ced->ced;
- dw_ced->irqaction.irq = irq;
- dw_ced->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL |
- IRQF_NOBALANCING;
-
dw_ced->eoi = apbt_eoi;
- err = setup_irq(irq, &dw_ced->irqaction);
+ err = request_irq(irq, dw_apb_clockevent_irq,
+ IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
+ dw_ced->ced.name, &dw_ced->ced);
if (err) {
pr_err("failed to request timer irq\n");
kfree(dw_ced);
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index a267fe31ef13..fabad79baafc 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -329,19 +329,15 @@ static irqreturn_t exynos4_mct_comp_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mct_comp_event_irq = {
- .name = "mct_comp_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = exynos4_mct_comp_isr,
- .dev_id = &mct_comp_device,
-};
-
static int exynos4_clockevent_init(void)
{
mct_comp_device.cpumask = cpumask_of(0);
clockevents_config_and_register(&mct_comp_device, clk_rate,
0xf, 0xffffffff);
- setup_irq(mct_irqs[MCT_G0_IRQ], &mct_comp_event_irq);
+ if (request_irq(mct_irqs[MCT_G0_IRQ], exynos4_mct_comp_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "mct_comp_irq",
+ &mct_comp_device))
+ pr_err("%s: request_irq() failed\n", "mct_comp_irq");
return 0;
}
diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index f6ddae30933f..bc96a4cbf26c 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -117,13 +117,6 @@ static irqreturn_t mxs_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mxs_timer_irq = {
- .name = "MXS Timer Tick",
- .dev_id = &mxs_clockevent_device,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = mxs_timer_interrupt,
-};
-
static void mxs_irq_clear(char *state)
{
/* Disable interrupt in timer module */
@@ -277,6 +270,7 @@ static int __init mxs_timer_init(struct device_node *np)
if (irq <= 0)
return -EINVAL;
- return setup_irq(irq, &mxs_timer_irq);
+ return request_irq(irq, mxs_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "MXS Timer Tick", &mxs_clockevent_device);
}
TIMER_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init);
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 3f7fa8c01367..f49a631d8f58 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -181,13 +181,6 @@ static irqreturn_t nmdk_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction nmdk_timer_irq = {
- .name = "Nomadik Timer Tick",
- .flags = IRQF_TIMER,
- .handler = nmdk_timer_interrupt,
- .dev_id = &nmdk_clkevt,
-};
-
static int __init nmdk_timer_init(void __iomem *base, int irq,
struct clk *pclk, struct clk *clk)
{
@@ -232,7 +225,9 @@ static int __init nmdk_timer_init(void __iomem *base, int irq,
sched_clock_register(nomadik_read_sched_clock, 32, rate);
/* Timer 1 is used for events, register irq and clockevents */
- setup_irq(irq, &nmdk_timer_irq);
+ if (request_irq(irq, nmdk_timer_interrupt, IRQF_TIMER,
+ "Nomadik Timer Tick", &nmdk_clkevt))
+ pr_err("%s: request_irq() failed\n", "Nomadik Timer Tick");
nmdk_clkevt.cpumask = cpumask_of(0);
nmdk_clkevt.irq = irq;
clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index dae1b2b5a0c5..f760229d0c7f 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -256,13 +256,6 @@ static irqreturn_t samsung_clock_event_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction samsung_clock_event_irq = {
- .name = "samsung_time_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = samsung_clock_event_isr,
- .dev_id = &time_event_device,
-};
-
static void __init samsung_clockevent_init(void)
{
unsigned long pclk;
@@ -282,7 +275,10 @@ static void __init samsung_clockevent_init(void)
clock_rate, 1, pwm.tcnt_max);
irq_number = pwm.irq[pwm.event_id];
- setup_irq(irq_number, &samsung_clock_event_irq);
+ if (request_irq(irq_number, samsung_clock_event_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "samsung_time_irq",
+ &time_event_device))
+ pr_err("%s: request_irq() failed\n", "samsung_time_irq");
if (pwm.variant.has_tint_cstat) {
u32 mask = (1 << pwm.event_id);
diff --git a/drivers/clocksource/timer-atlas7.c b/drivers/clocksource/timer-atlas7.c
index 93c3ac6d72bd..c21c91c2bc56 100644
--- a/drivers/clocksource/timer-atlas7.c
+++ b/drivers/clocksource/timer-atlas7.c
@@ -159,29 +159,23 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
-
-static struct irqaction sirfsoc_timer1_irq = {
- .name = "sirfsoc_timer1",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
+static unsigned int sirfsoc_timer_irq, sirfsoc_timer1_irq;
static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
{
struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
- struct irqaction *action;
-
- if (cpu == 0)
- action = &sirfsoc_timer_irq;
- else
- action = &sirfsoc_timer1_irq;
+ unsigned int irq;
+ const char *name;
+
+ if (cpu == 0) {
+ irq = sirfsoc_timer_irq;
+ name = "sirfsoc_timer0";
+ } else {
+ irq = sirfsoc_timer1_irq;
+ name = "sirfsoc_timer1";
+ }
- ce->irq = action->irq;
+ ce->irq = irq;
ce->name = "local_timer";
ce->features = CLOCK_EVT_FEAT_ONESHOT;
ce->rating = 200;
@@ -196,9 +190,9 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
ce->min_delta_ticks = 2;
ce->cpumask = cpumask_of(cpu);
- action->dev_id = ce;
- BUG_ON(setup_irq(ce->irq, action));
- irq_force_affinity(action->irq, cpumask_of(cpu));
+ BUG_ON(request_irq(ce->irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER | IRQF_NOBALANCING, name, ce));
+ irq_force_affinity(ce->irq, cpumask_of(cpu));
clockevents_register_device(ce);
return 0;
@@ -206,12 +200,14 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
static int sirfsoc_local_timer_dying_cpu(unsigned int cpu)
{
+ struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
+
sirfsoc_timer_count_disable(1);
if (cpu == 0)
- remove_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ free_irq(sirfsoc_timer_irq, ce);
else
- remove_irq(sirfsoc_timer1_irq.irq, &sirfsoc_timer1_irq);
+ free_irq(sirfsoc_timer1_irq, ce);
return 0;
}
@@ -268,14 +264,14 @@ static int __init sirfsoc_of_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
- if (!sirfsoc_timer_irq.irq) {
+ sirfsoc_timer_irq = irq_of_parse_and_map(np, 0);
+ if (!sirfsoc_timer_irq) {
pr_err("No irq passed for timer0 via DT\n");
return -EINVAL;
}
- sirfsoc_timer1_irq.irq = irq_of_parse_and_map(np, 1);
- if (!sirfsoc_timer1_irq.irq) {
+ sirfsoc_timer1_irq = irq_of_parse_and_map(np, 1);
+ if (!sirfsoc_timer1_irq) {
pr_err("No irq passed for timer1 via DT\n");
return -EINVAL;
}
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 8f6bc536bef2..51ea0509fb25 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -131,12 +131,6 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mfgptirq = {
- .handler = mfgpt_tick,
- .flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- .name = DRV_NAME,
-};
-
static int __init cs5535_mfgpt_init(void)
{
struct cs5535_mfgpt_timer *timer;
@@ -158,7 +152,9 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = setup_irq(timer_irq, &mfgptirq);
+ ret = request_irq(timer_irq, mfgpt_tick,
+ IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
+ DRV_NAME, NULL);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
diff --git a/drivers/clocksource/timer-efm32.c b/drivers/clocksource/timer-efm32.c
index 5a22cb079ad3..441a4b916841 100644
--- a/drivers/clocksource/timer-efm32.c
+++ b/drivers/clocksource/timer-efm32.c
@@ -119,13 +119,6 @@ static struct efm32_clock_event_ddata clock_event_ddata = {
},
};
-static struct irqaction efm32_clock_event_irq = {
- .name = "efm32 clockevent",
- .flags = IRQF_TIMER,
- .handler = efm32_clock_event_handler,
- .dev_id = &clock_event_ddata,
-};
-
static int __init efm32_clocksource_init(struct device_node *np)
{
struct clk *clk;
@@ -230,7 +223,8 @@ static int __init efm32_clockevent_init(struct device_node *np)
DIV_ROUND_CLOSEST(rate, 1024),
0xf, 0xffff);
- ret = setup_irq(irq, &efm32_clock_event_irq);
+ ret = request_irq(irq, efm32_clock_event_handler, IRQF_TIMER,
+ "efm32 clockevent", &clock_event_ddata);
if (ret) {
pr_err("Failed setup irq\n");
goto err_setup_irq;
diff --git a/drivers/clocksource/timer-fsl-ftm.c b/drivers/clocksource/timer-fsl-ftm.c
index a9d9a3ca5996..12a2ed7cfaff 100644
--- a/drivers/clocksource/timer-fsl-ftm.c
+++ b/drivers/clocksource/timer-fsl-ftm.c
@@ -176,13 +176,6 @@ static struct clock_event_device ftm_clockevent = {
.rating = 300,
};
-static struct irqaction ftm_timer_irq = {
- .name = "Freescale ftm timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ftm_evt_interrupt,
- .dev_id = &ftm_clockevent,
-};
-
static int __init ftm_clockevent_init(unsigned long freq, int irq)
{
int err;
@@ -192,7 +185,8 @@ static int __init ftm_clockevent_init(unsigned long freq, int irq)
ftm_reset_counter(priv->clkevt_base);
- err = setup_irq(irq, &ftm_timer_irq);
+ err = request_irq(irq, ftm_evt_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "Freescale ftm timer", &ftm_clockevent);
if (err) {
pr_err("ftm: setup irq failed: %d\n", err);
return err;
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 706c0d0ff56c..7b2c70f2f353 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -67,7 +67,6 @@ struct imx_timer {
struct clk *clk_ipg;
const struct imx_gpt_data *gpt;
struct clock_event_device ced;
- struct irqaction act;
};
struct imx_gpt_data {
@@ -273,7 +272,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
static int __init mxc_clockevent_init(struct imx_timer *imxtm)
{
struct clock_event_device *ced = &imxtm->ced;
- struct irqaction *act = &imxtm->act;
ced->name = "mxc_timer1";
ced->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_DYNIRQ;
@@ -287,12 +285,8 @@ static int __init mxc_clockevent_init(struct imx_timer *imxtm)
clockevents_config_and_register(ced, clk_get_rate(imxtm->clk_per),
0xff, 0xfffffffe);
- act->name = "i.MX Timer Tick";
- act->flags = IRQF_TIMER | IRQF_IRQPOLL;
- act->handler = mxc_timer_interrupt;
- act->dev_id = ced;
-
- return setup_irq(imxtm->irq, act);
+ return request_irq(imxtm->irq, mxc_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "i.MX Timer Tick", ced);
}
static void imx1_gpt_setup_tctl(struct imx_timer *imxtm)
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index c90a69c7b5fa..b0fcbaac58b0 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -123,13 +123,6 @@ static struct clock_event_device integrator_clockevent = {
.rating = 300,
};
-static struct irqaction integrator_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = integrator_timer_interrupt,
- .dev_id = &integrator_clockevent,
-};
-
static int integrator_clockevent_init(unsigned long inrate,
void __iomem *base, int irq)
{
@@ -149,7 +142,9 @@ static int integrator_clockevent_init(unsigned long inrate,
timer_reload = rate / HZ;
writel(ctrl, clkevt_base + TIMER_CTRL);
- ret = setup_irq(irq, &integrator_timer_irq);
+ ret = request_irq(irq, integrator_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "timer",
+ &integrator_clockevent);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-meson6.c b/drivers/clocksource/timer-meson6.c
index 9e8b467c71da..99f5510a2b56 100644
--- a/drivers/clocksource/timer-meson6.c
+++ b/drivers/clocksource/timer-meson6.c
@@ -150,13 +150,6 @@ static irqreturn_t meson6_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction meson6_timer_irq = {
- .name = "meson6_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = meson6_timer_interrupt,
- .dev_id = &meson6_clockevent,
-};
-
static int __init meson6_timer_init(struct device_node *node)
{
u32 val;
@@ -194,7 +187,9 @@ static int __init meson6_timer_init(struct device_node *node)
/* Stop the timer A */
meson6_clkevt_time_stop();
- ret = setup_irq(irq, &meson6_timer_irq);
+ ret = request_irq(irq, meson6_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "meson6_timer",
+ &meson6_clockevent);
if (ret) {
pr_warn("failed to setup irq %d\n", irq);
return ret;
diff --git a/drivers/clocksource/timer-orion.c b/drivers/clocksource/timer-orion.c
index 7d487107e3cd..d01ff4181867 100644
--- a/drivers/clocksource/timer-orion.c
+++ b/drivers/clocksource/timer-orion.c
@@ -114,12 +114,6 @@ static irqreturn_t orion_clkevt_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction orion_clkevt_irq = {
- .name = "orion_event",
- .flags = IRQF_TIMER,
- .handler = orion_clkevt_irq_handler,
-};
-
static int __init orion_timer_init(struct device_node *np)
{
unsigned long rate;
@@ -172,7 +166,8 @@ static int __init orion_timer_init(struct device_node *np)
sched_clock_register(orion_read_sched_clock, 32, rate);
/* setup timer1 as clockevent timer */
- ret = setup_irq(irq, &orion_clkevt_irq);
+ ret = request_irq(irq, orion_clkevt_irq_handler, IRQF_TIMER,
+ "orion_event", NULL);
if (ret) {
pr_err("%pOFn: unable to setup irq\n", np);
return ret;
diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c
index d4a9dcf5fba2..3d202813f992 100644
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -165,14 +165,6 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER,
- .irq = 0,
- .handler = sirfsoc_timer_interrupt,
- .dev_id = &sirfsoc_clockevent,
-};
-
/* Overwrite weak default sched_clock with more precise one */
static u64 notrace sirfsoc_read_sched_clock(void)
{
@@ -234,7 +226,8 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
sched_clock_register(sirfsoc_read_sched_clock, 64, PRIMA2_CLOCK_FREQ);
- ret = setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ ret = request_irq(sirfsoc_timer_irq.irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER, "sirfsoc_timer0", &sirfsoc_clockevent);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-pxa.c b/drivers/clocksource/timer-pxa.c
index 913a5d354a1f..7ad0e5adb2ff 100644
--- a/drivers/clocksource/timer-pxa.c
+++ b/drivers/clocksource/timer-pxa.c
@@ -143,13 +143,6 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
.resume = pxa_timer_resume,
};
-static struct irqaction pxa_ost0_irq = {
- .name = "ost0",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pxa_ost0_interrupt,
- .dev_id = &ckevt_pxa_osmr0,
-};
-
static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
{
int ret;
@@ -161,7 +154,8 @@ static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
ckevt_pxa_osmr0.cpumask = cpumask_of(0);
- ret = setup_irq(irq, &pxa_ost0_irq);
+ ret = request_irq(irq, pxa_ost0_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "ost0", &ckevt_pxa_osmr0);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-sp804.c b/drivers/clocksource/timer-sp804.c
index 9c841980eed1..5cd0abf9b396 100644
--- a/drivers/clocksource/timer-sp804.c
+++ b/drivers/clocksource/timer-sp804.c
@@ -168,13 +168,6 @@ static struct clock_event_device sp804_clockevent = {
.rating = 300,
};
-static struct irqaction sp804_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = sp804_timer_interrupt,
- .dev_id = &sp804_clockevent,
-};
-
int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct clk *clk, const char *name)
{
struct clock_event_device *evt = &sp804_clockevent;
@@ -200,7 +193,9 @@ int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct
writel(0, base + TIMER_CTRL);
- setup_irq(irq, &sp804_timer_irq);
+ if (request_irq(irq, sp804_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &sp804_clockevent))
+ pr_err("%s: request_irq() failed\n", "timer");
clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
return 0;
diff --git a/drivers/clocksource/timer-u300.c b/drivers/clocksource/timer-u300.c
index 32adc3057dda..37cba8dfd45f 100644
--- a/drivers/clocksource/timer-u300.c
+++ b/drivers/clocksource/timer-u300.c
@@ -330,12 +330,6 @@ static irqreturn_t u300_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction u300_timer_irq = {
- .name = "U300 Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = u300_timer_interrupt,
-};
-
/*
* Override the global weak sched_clock symbol with this
* local implementation which uses the clocksource to get some
@@ -420,7 +414,8 @@ static int __init u300_timer_init_of(struct device_node *np)
u300_timer_base + U300_TIMER_APP_RGPT1);
/* Set up the IRQ handler */
- ret = setup_irq(irq, &u300_timer_irq);
+ ret = request_irq(irq, u300_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "U300 Timer Tick", NULL);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-vf-pit.c b/drivers/clocksource/timer-vf-pit.c
index fef0bb4e0c8c..7ad4a8b008c2 100644
--- a/drivers/clocksource/timer-vf-pit.c
+++ b/drivers/clocksource/timer-vf-pit.c
@@ -123,19 +123,13 @@ static struct clock_event_device clockevent_pit = {
.rating = 300,
};
-static struct irqaction pit_timer_irq = {
- .name = "VF pit timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pit_timer_interrupt,
- .dev_id = &clockevent_pit,
-};
-
static int __init pit_clockevent_init(unsigned long rate, int irq)
{
__raw_writel(0, clkevt_base + PITTCTRL);
__raw_writel(PITTFLG_TIF, clkevt_base + PITTFLG);
- BUG_ON(setup_irq(irq, &pit_timer_irq));
+ BUG_ON(request_irq(irq, pit_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "VF pit timer", &clockevent_pit);
clockevent_pit.cpumask = cpumask_of(0);
clockevent_pit.irq = irq;
diff --git a/drivers/clocksource/timer-vt8500.c b/drivers/clocksource/timer-vt8500.c
index bb424bcefbb3..a469b1b5f972 100644
--- a/drivers/clocksource/timer-vt8500.c
+++ b/drivers/clocksource/timer-vt8500.c
@@ -101,13 +101,6 @@ static irqreturn_t vt8500_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq = {
- .name = "vt8500_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = vt8500_timer_interrupt,
- .dev_id = &clockevent,
-};
-
static int __init vt8500_timer_init(struct device_node *np)
{
int timer_irq, ret;
@@ -139,7 +132,9 @@ static int __init vt8500_timer_init(struct device_node *np)
clockevent.cpumask = cpumask_of(0);
- ret = setup_irq(timer_irq, &irq);
+ ret = request_irq(timer_irq, vt8500_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "vt8500_timer",
+ &clockevent);
if (ret) {
pr_err("%s: setup_irq failed for %s\n", __func__,
clockevent.name);
diff --git a/drivers/clocksource/timer-zevio.c b/drivers/clocksource/timer-zevio.c
index c0041561f1be..ecaa3568841c 100644
--- a/drivers/clocksource/timer-zevio.c
+++ b/drivers/clocksource/timer-zevio.c
@@ -53,7 +53,6 @@ struct zevio_timer {
struct clk *clk;
struct clock_event_device clkevt;
- struct irqaction clkevt_irq;
char clocksource_name[64];
char clockevent_name[64];
@@ -172,12 +171,12 @@ static int __init zevio_timer_add(struct device_node *node)
/* Interrupt to occur when timer value matches 0 */
writel(0, timer->base + IO_MATCH(TIMER_MATCH));
- timer->clkevt_irq.name = timer->clockevent_name;
- timer->clkevt_irq.handler = zevio_timer_interrupt;
- timer->clkevt_irq.dev_id = timer;
- timer->clkevt_irq.flags = IRQF_TIMER | IRQF_IRQPOLL;
-
- setup_irq(irqnr, &timer->clkevt_irq);
+ if (request_irq(irqnr, zevio_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL,
+ timer->clockevent_name, timer)) {
+ pr_err("%s: request_irq() failed\n",
+ timer->clockevent_name);
+ }
clockevents_config_and_register(&timer->clkevt,
clk_get_rate(timer->clk), 0x0001, 0xffff);
diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h
index 14f072edbca5..82ebf9223948 100644
--- a/include/linux/dw_apb_timer.h
+++ b/include/linux/dw_apb_timer.h
@@ -25,7 +25,6 @@ struct dw_apb_timer {
struct dw_apb_clock_event_device {
struct clock_event_device ced;
struct dw_apb_timer timer;
- struct irqaction irqaction;
void (*eoi)(struct dw_apb_timer *);
};
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 78+ messages in thread* Re: [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
2020-02-24 0:52 ` afzal mohammed
(?)
(?)
@ 2020-02-25 2:52 ` kbuild test robot
-1 siblings, 0 replies; 78+ messages in thread
From: kbuild test robot @ 2020-02-25 2:52 UTC (permalink / raw)
To: afzal mohammed
Cc: kbuild-all, linux-kernel, linux-arm-kernel, linux-samsung-soc,
linux-amlogic, Daniel Lezcano, Thomas Gleixner, Florian Fainelli,
Ray Jui, Scott Branden, bcm-kernel-feedback-list,
Nicolas Saenz Julienne, Kukjin Kim, Krzysztof Kozlowski,
Shawn Guo, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
NXP Linux Team, Barry Song, Uwe Kleine-König, Kevin Hilman,
Linus Walleij, Tony Prisk, Allison Randal, Enrico Weigelt,
Greg Kroah-Hartman, Kate Stewart
[-- Attachment #1: Type: text/plain, Size: 5498 bytes --]
Hi afzal,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/timers/core]
[also build test ERROR on arm-soc/for-next powerpc/next linus/master v5.6-rc3 next-20200221]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/afzal-mohammed/genirq-Remove-setup_irq/20200224-085537
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 5fb1c2a5bbf79ccca8d17cf97f66085be5808027
config: sparc-allyesconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=sparc
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
drivers/clocksource/timer-prima2.c: In function 'sirfsoc_prima2_timer_init':
>> drivers/clocksource/timer-prima2.c:213:2: error: 'sirfsoc_timer_irq' undeclared (first use in this function); did you mean 'sirfsoc_timer_read'?
sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
^~~~~~~~~~~~~~~~~
sirfsoc_timer_read
drivers/clocksource/timer-prima2.c:213:2: note: each undeclared identifier is reported only once for each function it appears in
vim +213 drivers/clocksource/timer-prima2.c
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 180
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 181 /* initialize the kernel jiffy timer source */
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 182 static int __init sirfsoc_prima2_timer_init(struct device_node *np)
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 183 {
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 184 unsigned long rate;
198678b0b8533e arch/arm/mach-prima2/timer.c Binghua Duan 2012-08-20 185 struct clk *clk;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 186 int ret;
198678b0b8533e arch/arm/mach-prima2/timer.c Binghua Duan 2012-08-20 187
c7cff54d5926e3 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-05-05 188 clk = of_clk_get(np, 0);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 189 if (IS_ERR(clk)) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 190 pr_err("Failed to get clock\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 191 return PTR_ERR(clk);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 192 }
38941522ecbd21 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-07-03 193
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 194 ret = clk_prepare_enable(clk);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 195 if (ret) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 196 pr_err("Failed to enable clock\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 197 return ret;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 198 }
38941522ecbd21 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-07-03 199
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 200 rate = clk_get_rate(clk);
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 201
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 202 if (rate < PRIMA2_CLOCK_FREQ || rate % PRIMA2_CLOCK_FREQ) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 203 pr_err("Invalid clock rate\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 204 return -EINVAL;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 205 }
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 206
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 207 sirfsoc_timer_base = of_iomap(np, 0);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 208 if (!sirfsoc_timer_base) {
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 209 pr_err("unable to map timer cpu registers\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 210 return -ENXIO;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 211 }
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 212
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 @213 sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
:::::: The code at line 213 was first introduced by commit
:::::: 275786b71d42bb54c03c15197128d7cb05d4dd8b ARM: sirf: use clocksource_of infrastructure
:::::: TO: Arnd Bergmann <arnd@arndb.de>
:::::: CC: Arnd Bergmann <arnd@arndb.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 61172 bytes --]
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-25 2:52 ` kbuild test robot
0 siblings, 0 replies; 78+ messages in thread
From: kbuild test robot @ 2020-02-25 2:52 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 5575 bytes --]
Hi afzal,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/timers/core]
[also build test ERROR on arm-soc/for-next powerpc/next linus/master v5.6-rc3 next-20200221]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/afzal-mohammed/genirq-Remove-setup_irq/20200224-085537
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 5fb1c2a5bbf79ccca8d17cf97f66085be5808027
config: sparc-allyesconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=sparc
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
drivers/clocksource/timer-prima2.c: In function 'sirfsoc_prima2_timer_init':
>> drivers/clocksource/timer-prima2.c:213:2: error: 'sirfsoc_timer_irq' undeclared (first use in this function); did you mean 'sirfsoc_timer_read'?
sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
^~~~~~~~~~~~~~~~~
sirfsoc_timer_read
drivers/clocksource/timer-prima2.c:213:2: note: each undeclared identifier is reported only once for each function it appears in
vim +213 drivers/clocksource/timer-prima2.c
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 180
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 181 /* initialize the kernel jiffy timer source */
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 182 static int __init sirfsoc_prima2_timer_init(struct device_node *np)
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 183 {
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 184 unsigned long rate;
198678b0b8533e arch/arm/mach-prima2/timer.c Binghua Duan 2012-08-20 185 struct clk *clk;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 186 int ret;
198678b0b8533e arch/arm/mach-prima2/timer.c Binghua Duan 2012-08-20 187
c7cff54d5926e3 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-05-05 188 clk = of_clk_get(np, 0);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 189 if (IS_ERR(clk)) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 190 pr_err("Failed to get clock\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 191 return PTR_ERR(clk);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 192 }
38941522ecbd21 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-07-03 193
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 194 ret = clk_prepare_enable(clk);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 195 if (ret) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 196 pr_err("Failed to enable clock\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 197 return ret;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 198 }
38941522ecbd21 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-07-03 199
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 200 rate = clk_get_rate(clk);
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 201
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 202 if (rate < PRIMA2_CLOCK_FREQ || rate % PRIMA2_CLOCK_FREQ) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 203 pr_err("Invalid clock rate\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 204 return -EINVAL;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 205 }
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 206
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 207 sirfsoc_timer_base = of_iomap(np, 0);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 208 if (!sirfsoc_timer_base) {
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 209 pr_err("unable to map timer cpu registers\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 210 return -ENXIO;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 211 }
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 212
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 @213 sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
:::::: The code@line 213 was first introduced by commit
:::::: 275786b71d42bb54c03c15197128d7cb05d4dd8b ARM: sirf: use clocksource_of infrastructure
:::::: TO: Arnd Bergmann <arnd@arndb.de>
:::::: CC: Arnd Bergmann <arnd@arndb.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 61172 bytes --]
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-25 2:52 ` kbuild test robot
0 siblings, 0 replies; 78+ messages in thread
From: kbuild test robot @ 2020-02-25 2:52 UTC (permalink / raw)
To: afzal mohammed
Cc: Kate Stewart, Linus Walleij, Fabio Estevam, linux-samsung-soc,
Kevin Hilman, Daniel Lezcano, Allison Randal,
Krzysztof Kozlowski, Kukjin Kim, bcm-kernel-feedback-list,
NXP Linux Team, Uwe Kleine-König, Ray Jui, Sascha Hauer,
Florian Fainelli, linux-amlogic, Thomas Gleixner,
linux-arm-kernel, Barry Song, kbuild-all, Scott Branden,
Enrico Weigelt, linux-kernel, Tony Prisk,
Pengutronix Kernel Team, Greg Kroah-Hartman, Shawn Guo,
Nicolas Saenz Julienne
[-- Attachment #1: Type: text/plain, Size: 5498 bytes --]
Hi afzal,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/timers/core]
[also build test ERROR on arm-soc/for-next powerpc/next linus/master v5.6-rc3 next-20200221]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/afzal-mohammed/genirq-Remove-setup_irq/20200224-085537
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 5fb1c2a5bbf79ccca8d17cf97f66085be5808027
config: sparc-allyesconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=sparc
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
drivers/clocksource/timer-prima2.c: In function 'sirfsoc_prima2_timer_init':
>> drivers/clocksource/timer-prima2.c:213:2: error: 'sirfsoc_timer_irq' undeclared (first use in this function); did you mean 'sirfsoc_timer_read'?
sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
^~~~~~~~~~~~~~~~~
sirfsoc_timer_read
drivers/clocksource/timer-prima2.c:213:2: note: each undeclared identifier is reported only once for each function it appears in
vim +213 drivers/clocksource/timer-prima2.c
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 180
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 181 /* initialize the kernel jiffy timer source */
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 182 static int __init sirfsoc_prima2_timer_init(struct device_node *np)
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 183 {
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 184 unsigned long rate;
198678b0b8533e arch/arm/mach-prima2/timer.c Binghua Duan 2012-08-20 185 struct clk *clk;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 186 int ret;
198678b0b8533e arch/arm/mach-prima2/timer.c Binghua Duan 2012-08-20 187
c7cff54d5926e3 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-05-05 188 clk = of_clk_get(np, 0);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 189 if (IS_ERR(clk)) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 190 pr_err("Failed to get clock\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 191 return PTR_ERR(clk);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 192 }
38941522ecbd21 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-07-03 193
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 194 ret = clk_prepare_enable(clk);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 195 if (ret) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 196 pr_err("Failed to enable clock\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 197 return ret;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 198 }
38941522ecbd21 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-07-03 199
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 200 rate = clk_get_rate(clk);
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 201
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 202 if (rate < PRIMA2_CLOCK_FREQ || rate % PRIMA2_CLOCK_FREQ) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 203 pr_err("Invalid clock rate\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 204 return -EINVAL;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 205 }
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 206
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 207 sirfsoc_timer_base = of_iomap(np, 0);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 208 if (!sirfsoc_timer_base) {
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 209 pr_err("unable to map timer cpu registers\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 210 return -ENXIO;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 211 }
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 212
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 @213 sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
:::::: The code at line 213 was first introduced by commit
:::::: 275786b71d42bb54c03c15197128d7cb05d4dd8b ARM: sirf: use clocksource_of infrastructure
:::::: TO: Arnd Bergmann <arnd@arndb.de>
:::::: CC: Arnd Bergmann <arnd@arndb.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 61172 bytes --]
[-- Attachment #3: Type: text/plain, Size: 167 bytes --]
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linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-25 2:52 ` kbuild test robot
0 siblings, 0 replies; 78+ messages in thread
From: kbuild test robot @ 2020-02-25 2:52 UTC (permalink / raw)
To: afzal mohammed
Cc: Kate Stewart, Linus Walleij, Fabio Estevam, linux-samsung-soc,
Kevin Hilman, Daniel Lezcano, Allison Randal,
Krzysztof Kozlowski, Kukjin Kim, bcm-kernel-feedback-list,
NXP Linux Team, Uwe Kleine-König, Ray Jui, Sascha Hauer,
Florian Fainelli, linux-amlogic, Thomas Gleixner,
linux-arm-kernel, Barry Song, kbuild-all, Scott Branden,
Enrico Weigelt, linux-kernel, Tony Prisk,
Pengutronix Kernel Team, Greg Kroah-Hartman, Shawn Guo,
Nicolas Saenz Julienne
[-- Attachment #1: Type: text/plain, Size: 5498 bytes --]
Hi afzal,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on tip/timers/core]
[also build test ERROR on arm-soc/for-next powerpc/next linus/master v5.6-rc3 next-20200221]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/afzal-mohammed/genirq-Remove-setup_irq/20200224-085537
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 5fb1c2a5bbf79ccca8d17cf97f66085be5808027
config: sparc-allyesconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=sparc
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
drivers/clocksource/timer-prima2.c: In function 'sirfsoc_prima2_timer_init':
>> drivers/clocksource/timer-prima2.c:213:2: error: 'sirfsoc_timer_irq' undeclared (first use in this function); did you mean 'sirfsoc_timer_read'?
sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
^~~~~~~~~~~~~~~~~
sirfsoc_timer_read
drivers/clocksource/timer-prima2.c:213:2: note: each undeclared identifier is reported only once for each function it appears in
vim +213 drivers/clocksource/timer-prima2.c
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 180
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 181 /* initialize the kernel jiffy timer source */
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 182 static int __init sirfsoc_prima2_timer_init(struct device_node *np)
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 183 {
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 184 unsigned long rate;
198678b0b8533e arch/arm/mach-prima2/timer.c Binghua Duan 2012-08-20 185 struct clk *clk;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 186 int ret;
198678b0b8533e arch/arm/mach-prima2/timer.c Binghua Duan 2012-08-20 187
c7cff54d5926e3 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-05-05 188 clk = of_clk_get(np, 0);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 189 if (IS_ERR(clk)) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 190 pr_err("Failed to get clock\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 191 return PTR_ERR(clk);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 192 }
38941522ecbd21 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-07-03 193
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 194 ret = clk_prepare_enable(clk);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 195 if (ret) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 196 pr_err("Failed to enable clock\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 197 return ret;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 198 }
38941522ecbd21 drivers/clocksource/timer-prima2.c Zhiwu Song 2014-07-03 199
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 200 rate = clk_get_rate(clk);
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 201
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 202 if (rate < PRIMA2_CLOCK_FREQ || rate % PRIMA2_CLOCK_FREQ) {
ac9ce6d1a0cc29 drivers/clocksource/timer-prima2.c Rafał Miłecki 2017-03-09 203 pr_err("Invalid clock rate\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 204 return -EINVAL;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 205 }
02c981c07bc95a arch/arm/mach-prima2/timer.c Binghua Duan 2011-07-08 206
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 207 sirfsoc_timer_base = of_iomap(np, 0);
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 208 if (!sirfsoc_timer_base) {
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 209 pr_err("unable to map timer cpu registers\n");
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 210 return -ENXIO;
de23484dd50829 drivers/clocksource/timer-prima2.c Daniel Lezcano 2016-06-06 211 }
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 212
275786b71d42bb drivers/clocksource/timer-prima2.c Arnd Bergmann 2013-03-19 @213 sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
:::::: The code at line 213 was first introduced by commit
:::::: 275786b71d42bb54c03c15197128d7cb05d4dd8b ARM: sirf: use clocksource_of infrastructure
:::::: TO: Arnd Bergmann <arnd@arndb.de>
:::::: CC: Arnd Bergmann <arnd@arndb.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 61172 bytes --]
[-- Attachment #3: Type: text/plain, Size: 176 bytes --]
_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
2020-02-25 2:52 ` kbuild test robot
(?)
@ 2020-02-25 7:51 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-25 7:51 UTC (permalink / raw)
To: kbuild test robot
Cc: kbuild-all, linux-kernel, linux-arm-kernel, linux-samsung-soc,
linux-amlogic, Daniel Lezcano, Thomas Gleixner, Florian Fainelli,
Ray Jui, Scott Branden, bcm-kernel-feedback-list,
Nicolas Saenz Julienne, Kukjin Kim, Krzysztof Kozlowski,
Shawn Guo, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
NXP Linux Team, Barry Song, Uwe Kleine-König, Kevin Hilman,
Linus Walleij, Tony Prisk, Allison Randal, Enrico Weigelt,
Greg Kroah-Hartman, Kate Stewart
Hi,
On Tue, Feb 25, 2020 at 10:52:55AM +0800, kbuild test robot wrote:
> Thank you for the patch! Yet something to improve:
And thanks for the report, i will try to improve :)
> [auto build test ERROR on tip/timers/core]
> [also build test ERROR on arm-soc/for-next powerpc/next linus/master v5.6-rc3 next-20200221]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
i did use --base option w/ git format-patch, though the output of it
was rigged to indicate a human understandable start point that can be
parsed by the script as well.
In cover letter, there was "base-commit: v5.6-rc1", test robot cannot
make use of that information ?, since my thought was that your script
would create a branch with any valid start point following
"base-commit:"
> drivers/clocksource/timer-prima2.c: In function 'sirfsoc_prima2_timer_init':
> >> drivers/clocksource/timer-prima2.c:213:2: error: 'sirfsoc_timer_irq' undeclared (first use in this function); did you mean 'sirfsoc_timer_read'?
> sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
> ^~~~~~~~~~~~~~~~~
> sirfsoc_timer_read
> drivers/clocksource/timer-prima2.c:213:2: note: each undeclared identifier is reported only once for each function it appears in
Does the robot keep the log of patches that are successfully built ?,
w/ v1, i did not receive similar report, and tried to find if test
robot has successfully built v1, but couldn't find out.
Regards
afzal
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-25 7:51 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-25 7:51 UTC (permalink / raw)
To: kbuild test robot
Cc: Kate Stewart, Linus Walleij, Fabio Estevam, linux-samsung-soc,
Kevin Hilman, Daniel Lezcano, Allison Randal,
Krzysztof Kozlowski, Kukjin Kim, bcm-kernel-feedback-list,
NXP Linux Team, Uwe Kleine-König, Ray Jui, Sascha Hauer,
Florian Fainelli, linux-amlogic, Thomas Gleixner,
linux-arm-kernel, Barry Song, kbuild-all, Scott Branden,
Enrico Weigelt, linux-kernel, Tony Prisk,
Pengutronix Kernel Team, Greg Kroah-Hartman, Shawn Guo,
Nicolas Saenz Julienne
Hi,
On Tue, Feb 25, 2020 at 10:52:55AM +0800, kbuild test robot wrote:
> Thank you for the patch! Yet something to improve:
And thanks for the report, i will try to improve :)
> [auto build test ERROR on tip/timers/core]
> [also build test ERROR on arm-soc/for-next powerpc/next linus/master v5.6-rc3 next-20200221]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
i did use --base option w/ git format-patch, though the output of it
was rigged to indicate a human understandable start point that can be
parsed by the script as well.
In cover letter, there was "base-commit: v5.6-rc1", test robot cannot
make use of that information ?, since my thought was that your script
would create a branch with any valid start point following
"base-commit:"
> drivers/clocksource/timer-prima2.c: In function 'sirfsoc_prima2_timer_init':
> >> drivers/clocksource/timer-prima2.c:213:2: error: 'sirfsoc_timer_irq' undeclared (first use in this function); did you mean 'sirfsoc_timer_read'?
> sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
> ^~~~~~~~~~~~~~~~~
> sirfsoc_timer_read
> drivers/clocksource/timer-prima2.c:213:2: note: each undeclared identifier is reported only once for each function it appears in
Does the robot keep the log of patches that are successfully built ?,
w/ v1, i did not receive similar report, and tried to find if test
robot has successfully built v1, but couldn't find out.
Regards
afzal
_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v2 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-25 7:51 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-25 7:51 UTC (permalink / raw)
To: kbuild test robot
Cc: Kate Stewart, Linus Walleij, Fabio Estevam, linux-samsung-soc,
Kevin Hilman, Daniel Lezcano, Allison Randal,
Krzysztof Kozlowski, Kukjin Kim, bcm-kernel-feedback-list,
NXP Linux Team, Uwe Kleine-König, Ray Jui, Sascha Hauer,
Florian Fainelli, linux-amlogic, Thomas Gleixner,
linux-arm-kernel, Barry Song, kbuild-all, Scott Branden,
Enrico Weigelt, linux-kernel, Tony Prisk,
Pengutronix Kernel Team, Greg Kroah-Hartman, Shawn Guo,
Nicolas Saenz Julienne
Hi,
On Tue, Feb 25, 2020 at 10:52:55AM +0800, kbuild test robot wrote:
> Thank you for the patch! Yet something to improve:
And thanks for the report, i will try to improve :)
> [auto build test ERROR on tip/timers/core]
> [also build test ERROR on arm-soc/for-next powerpc/next linus/master v5.6-rc3 next-20200221]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
i did use --base option w/ git format-patch, though the output of it
was rigged to indicate a human understandable start point that can be
parsed by the script as well.
In cover letter, there was "base-commit: v5.6-rc1", test robot cannot
make use of that information ?, since my thought was that your script
would create a branch with any valid start point following
"base-commit:"
> drivers/clocksource/timer-prima2.c: In function 'sirfsoc_prima2_timer_init':
> >> drivers/clocksource/timer-prima2.c:213:2: error: 'sirfsoc_timer_irq' undeclared (first use in this function); did you mean 'sirfsoc_timer_read'?
> sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
> ^~~~~~~~~~~~~~~~~
> sirfsoc_timer_read
> drivers/clocksource/timer-prima2.c:213:2: note: each undeclared identifier is reported only once for each function it appears in
Does the robot keep the log of patches that are successfully built ?,
w/ v1, i did not receive similar report, and tried to find if test
robot has successfully built v1, but couldn't find out.
Regards
afzal
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 78+ messages in thread
* [PATCH v3 16/18] clocksource: Replace setup_irq() by request_irq()
2020-02-25 2:52 ` kbuild test robot
(?)
@ 2020-02-27 10:59 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-27 10:59 UTC (permalink / raw)
To: linux-kernel, linux-arm-kernel, linux-samsung-soc, linux-amlogic
Cc: Daniel Lezcano, Thomas Gleixner, Florian Fainelli, Ray Jui,
Scott Branden, bcm-kernel-feedback-list, Nicolas Saenz Julienne,
Kukjin Kim, Krzysztof Kozlowski, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Barry Song, Uwe Kleine-König, Kevin Hilman, Linus Walleij,
Tony Prisk, Allison Randal, Enrico Weigelt, Greg Kroah-Hartman,
Kate Stewart
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
A build error that was reported by kbuild test robot <lkp@intel.com>
in the previous version of the patch also has been fixed.
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
Hi,
There was a build error in v2, which was reported by kbuild test
robot and it was suggested to add Reported-by to the patch. But since
the change is being fixed up w/ original patch, if i add Reported-by,
it will give a feeling as though robot has reported the necessity of
this patch as whole, so i have credited test robot in a different way
in the commit message. If the proper way is to add Reported-by tag
itself or some other way, let me know, i will change accordingly.
Hi Daniel, Linus,
i have removed your Acked-by's as now patch has been modified (though
only slightly the file timer-prima2.c) to fix the build error.
Regards
afzal
v3:
* fix build error in timer-prima2.c as reported by kbuild test robot
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
drivers/clocksource/bcm2835_timer.c | 8 +---
drivers/clocksource/bcm_kona_timer.c | 10 ++---
drivers/clocksource/dw_apb_timer.c | 11 ++---
drivers/clocksource/exynos_mct.c | 12 ++----
drivers/clocksource/mxs_timer.c | 10 +----
drivers/clocksource/nomadik-mtu.c | 11 ++---
drivers/clocksource/samsung_pwm_timer.c | 12 ++----
drivers/clocksource/timer-atlas7.c | 50 +++++++++++------------
drivers/clocksource/timer-cs5535.c | 10 ++---
drivers/clocksource/timer-efm32.c | 10 +----
drivers/clocksource/timer-fsl-ftm.c | 10 +----
drivers/clocksource/timer-imx-gpt.c | 10 +----
drivers/clocksource/timer-integrator-ap.c | 11 ++---
drivers/clocksource/timer-meson6.c | 11 ++---
drivers/clocksource/timer-orion.c | 9 +---
drivers/clocksource/timer-prima2.c | 14 ++-----
drivers/clocksource/timer-pxa.c | 10 +----
drivers/clocksource/timer-sp804.c | 11 ++---
drivers/clocksource/timer-u300.c | 9 +---
drivers/clocksource/timer-vf-pit.c | 10 +----
drivers/clocksource/timer-vt8500.c | 11 ++---
drivers/clocksource/timer-zevio.c | 13 +++---
include/linux/dw_apb_timer.h | 1 -
23 files changed, 83 insertions(+), 191 deletions(-)
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index b235f446ee50..1592650b2c92 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -31,7 +31,6 @@ struct bcm2835_timer {
void __iomem *compare;
int match_mask;
struct clock_event_device evt;
- struct irqaction act;
};
static void __iomem *system_clock __read_mostly;
@@ -113,12 +112,9 @@ static int __init bcm2835_timer_init(struct device_node *node)
timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;
timer->evt.set_next_event = bcm2835_time_set_next_event;
timer->evt.cpumask = cpumask_of(0);
- timer->act.name = node->name;
- timer->act.flags = IRQF_TIMER | IRQF_SHARED;
- timer->act.dev_id = timer;
- timer->act.handler = bcm2835_time_interrupt;
- ret = setup_irq(irq, &timer->act);
+ ret = request_irq(irq, bcm2835_time_interrupt, IRQF_TIMER | IRQF_SHARED,
+ node->name, timer);
if (ret) {
pr_err("Can't set up timer IRQ\n");
goto err_timer_free;
diff --git a/drivers/clocksource/bcm_kona_timer.c b/drivers/clocksource/bcm_kona_timer.c
index 5c40be9880f5..a50ab5c2154f 100644
--- a/drivers/clocksource/bcm_kona_timer.c
+++ b/drivers/clocksource/bcm_kona_timer.c
@@ -160,12 +160,6 @@ static irqreturn_t kona_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction kona_timer_irq = {
- .name = "Kona Timer Tick",
- .flags = IRQF_TIMER,
- .handler = kona_timer_interrupt,
-};
-
static int __init kona_timer_init(struct device_node *node)
{
u32 freq;
@@ -192,7 +186,9 @@ static int __init kona_timer_init(struct device_node *node)
kona_timer_disable_and_clear(timers.tmr_regs);
kona_timer_clockevents_init();
- setup_irq(timers.tmr_irq, &kona_timer_irq);
+ if (request_irq(timers.tmr_irq, kona_timer_interrupt, IRQF_TIMER,
+ "Kona Timer Tick", NULL))
+ pr_err("%s: request_irq() failed\n", "Kona Timer Tick");
kona_timer_set_next_event((arch_timer_rate / HZ), NULL);
return 0;
diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c
index 654766538f93..b207a77b0831 100644
--- a/drivers/clocksource/dw_apb_timer.c
+++ b/drivers/clocksource/dw_apb_timer.c
@@ -270,15 +270,10 @@ dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
dw_ced->ced.rating = rating;
dw_ced->ced.name = name;
- dw_ced->irqaction.name = dw_ced->ced.name;
- dw_ced->irqaction.handler = dw_apb_clockevent_irq;
- dw_ced->irqaction.dev_id = &dw_ced->ced;
- dw_ced->irqaction.irq = irq;
- dw_ced->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL |
- IRQF_NOBALANCING;
-
dw_ced->eoi = apbt_eoi;
- err = setup_irq(irq, &dw_ced->irqaction);
+ err = request_irq(irq, dw_apb_clockevent_irq,
+ IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
+ dw_ced->ced.name, &dw_ced->ced);
if (err) {
pr_err("failed to request timer irq\n");
kfree(dw_ced);
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index a267fe31ef13..fabad79baafc 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -329,19 +329,15 @@ static irqreturn_t exynos4_mct_comp_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mct_comp_event_irq = {
- .name = "mct_comp_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = exynos4_mct_comp_isr,
- .dev_id = &mct_comp_device,
-};
-
static int exynos4_clockevent_init(void)
{
mct_comp_device.cpumask = cpumask_of(0);
clockevents_config_and_register(&mct_comp_device, clk_rate,
0xf, 0xffffffff);
- setup_irq(mct_irqs[MCT_G0_IRQ], &mct_comp_event_irq);
+ if (request_irq(mct_irqs[MCT_G0_IRQ], exynos4_mct_comp_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "mct_comp_irq",
+ &mct_comp_device))
+ pr_err("%s: request_irq() failed\n", "mct_comp_irq");
return 0;
}
diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index f6ddae30933f..bc96a4cbf26c 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -117,13 +117,6 @@ static irqreturn_t mxs_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mxs_timer_irq = {
- .name = "MXS Timer Tick",
- .dev_id = &mxs_clockevent_device,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = mxs_timer_interrupt,
-};
-
static void mxs_irq_clear(char *state)
{
/* Disable interrupt in timer module */
@@ -277,6 +270,7 @@ static int __init mxs_timer_init(struct device_node *np)
if (irq <= 0)
return -EINVAL;
- return setup_irq(irq, &mxs_timer_irq);
+ return request_irq(irq, mxs_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "MXS Timer Tick", &mxs_clockevent_device);
}
TIMER_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init);
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 3f7fa8c01367..f49a631d8f58 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -181,13 +181,6 @@ static irqreturn_t nmdk_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction nmdk_timer_irq = {
- .name = "Nomadik Timer Tick",
- .flags = IRQF_TIMER,
- .handler = nmdk_timer_interrupt,
- .dev_id = &nmdk_clkevt,
-};
-
static int __init nmdk_timer_init(void __iomem *base, int irq,
struct clk *pclk, struct clk *clk)
{
@@ -232,7 +225,9 @@ static int __init nmdk_timer_init(void __iomem *base, int irq,
sched_clock_register(nomadik_read_sched_clock, 32, rate);
/* Timer 1 is used for events, register irq and clockevents */
- setup_irq(irq, &nmdk_timer_irq);
+ if (request_irq(irq, nmdk_timer_interrupt, IRQF_TIMER,
+ "Nomadik Timer Tick", &nmdk_clkevt))
+ pr_err("%s: request_irq() failed\n", "Nomadik Timer Tick");
nmdk_clkevt.cpumask = cpumask_of(0);
nmdk_clkevt.irq = irq;
clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index dae1b2b5a0c5..f760229d0c7f 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -256,13 +256,6 @@ static irqreturn_t samsung_clock_event_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction samsung_clock_event_irq = {
- .name = "samsung_time_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = samsung_clock_event_isr,
- .dev_id = &time_event_device,
-};
-
static void __init samsung_clockevent_init(void)
{
unsigned long pclk;
@@ -282,7 +275,10 @@ static void __init samsung_clockevent_init(void)
clock_rate, 1, pwm.tcnt_max);
irq_number = pwm.irq[pwm.event_id];
- setup_irq(irq_number, &samsung_clock_event_irq);
+ if (request_irq(irq_number, samsung_clock_event_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "samsung_time_irq",
+ &time_event_device))
+ pr_err("%s: request_irq() failed\n", "samsung_time_irq");
if (pwm.variant.has_tint_cstat) {
u32 mask = (1 << pwm.event_id);
diff --git a/drivers/clocksource/timer-atlas7.c b/drivers/clocksource/timer-atlas7.c
index 93c3ac6d72bd..c21c91c2bc56 100644
--- a/drivers/clocksource/timer-atlas7.c
+++ b/drivers/clocksource/timer-atlas7.c
@@ -159,29 +159,23 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
-
-static struct irqaction sirfsoc_timer1_irq = {
- .name = "sirfsoc_timer1",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
+static unsigned int sirfsoc_timer_irq, sirfsoc_timer1_irq;
static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
{
struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
- struct irqaction *action;
-
- if (cpu == 0)
- action = &sirfsoc_timer_irq;
- else
- action = &sirfsoc_timer1_irq;
+ unsigned int irq;
+ const char *name;
+
+ if (cpu == 0) {
+ irq = sirfsoc_timer_irq;
+ name = "sirfsoc_timer0";
+ } else {
+ irq = sirfsoc_timer1_irq;
+ name = "sirfsoc_timer1";
+ }
- ce->irq = action->irq;
+ ce->irq = irq;
ce->name = "local_timer";
ce->features = CLOCK_EVT_FEAT_ONESHOT;
ce->rating = 200;
@@ -196,9 +190,9 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
ce->min_delta_ticks = 2;
ce->cpumask = cpumask_of(cpu);
- action->dev_id = ce;
- BUG_ON(setup_irq(ce->irq, action));
- irq_force_affinity(action->irq, cpumask_of(cpu));
+ BUG_ON(request_irq(ce->irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER | IRQF_NOBALANCING, name, ce));
+ irq_force_affinity(ce->irq, cpumask_of(cpu));
clockevents_register_device(ce);
return 0;
@@ -206,12 +200,14 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
static int sirfsoc_local_timer_dying_cpu(unsigned int cpu)
{
+ struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
+
sirfsoc_timer_count_disable(1);
if (cpu == 0)
- remove_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ free_irq(sirfsoc_timer_irq, ce);
else
- remove_irq(sirfsoc_timer1_irq.irq, &sirfsoc_timer1_irq);
+ free_irq(sirfsoc_timer1_irq, ce);
return 0;
}
@@ -268,14 +264,14 @@ static int __init sirfsoc_of_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
- if (!sirfsoc_timer_irq.irq) {
+ sirfsoc_timer_irq = irq_of_parse_and_map(np, 0);
+ if (!sirfsoc_timer_irq) {
pr_err("No irq passed for timer0 via DT\n");
return -EINVAL;
}
- sirfsoc_timer1_irq.irq = irq_of_parse_and_map(np, 1);
- if (!sirfsoc_timer1_irq.irq) {
+ sirfsoc_timer1_irq = irq_of_parse_and_map(np, 1);
+ if (!sirfsoc_timer1_irq) {
pr_err("No irq passed for timer1 via DT\n");
return -EINVAL;
}
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 8f6bc536bef2..51ea0509fb25 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -131,12 +131,6 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mfgptirq = {
- .handler = mfgpt_tick,
- .flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- .name = DRV_NAME,
-};
-
static int __init cs5535_mfgpt_init(void)
{
struct cs5535_mfgpt_timer *timer;
@@ -158,7 +152,9 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = setup_irq(timer_irq, &mfgptirq);
+ ret = request_irq(timer_irq, mfgpt_tick,
+ IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
+ DRV_NAME, NULL);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
diff --git a/drivers/clocksource/timer-efm32.c b/drivers/clocksource/timer-efm32.c
index 5a22cb079ad3..441a4b916841 100644
--- a/drivers/clocksource/timer-efm32.c
+++ b/drivers/clocksource/timer-efm32.c
@@ -119,13 +119,6 @@ static struct efm32_clock_event_ddata clock_event_ddata = {
},
};
-static struct irqaction efm32_clock_event_irq = {
- .name = "efm32 clockevent",
- .flags = IRQF_TIMER,
- .handler = efm32_clock_event_handler,
- .dev_id = &clock_event_ddata,
-};
-
static int __init efm32_clocksource_init(struct device_node *np)
{
struct clk *clk;
@@ -230,7 +223,8 @@ static int __init efm32_clockevent_init(struct device_node *np)
DIV_ROUND_CLOSEST(rate, 1024),
0xf, 0xffff);
- ret = setup_irq(irq, &efm32_clock_event_irq);
+ ret = request_irq(irq, efm32_clock_event_handler, IRQF_TIMER,
+ "efm32 clockevent", &clock_event_ddata);
if (ret) {
pr_err("Failed setup irq\n");
goto err_setup_irq;
diff --git a/drivers/clocksource/timer-fsl-ftm.c b/drivers/clocksource/timer-fsl-ftm.c
index a9d9a3ca5996..12a2ed7cfaff 100644
--- a/drivers/clocksource/timer-fsl-ftm.c
+++ b/drivers/clocksource/timer-fsl-ftm.c
@@ -176,13 +176,6 @@ static struct clock_event_device ftm_clockevent = {
.rating = 300,
};
-static struct irqaction ftm_timer_irq = {
- .name = "Freescale ftm timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ftm_evt_interrupt,
- .dev_id = &ftm_clockevent,
-};
-
static int __init ftm_clockevent_init(unsigned long freq, int irq)
{
int err;
@@ -192,7 +185,8 @@ static int __init ftm_clockevent_init(unsigned long freq, int irq)
ftm_reset_counter(priv->clkevt_base);
- err = setup_irq(irq, &ftm_timer_irq);
+ err = request_irq(irq, ftm_evt_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "Freescale ftm timer", &ftm_clockevent);
if (err) {
pr_err("ftm: setup irq failed: %d\n", err);
return err;
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 706c0d0ff56c..7b2c70f2f353 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -67,7 +67,6 @@ struct imx_timer {
struct clk *clk_ipg;
const struct imx_gpt_data *gpt;
struct clock_event_device ced;
- struct irqaction act;
};
struct imx_gpt_data {
@@ -273,7 +272,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
static int __init mxc_clockevent_init(struct imx_timer *imxtm)
{
struct clock_event_device *ced = &imxtm->ced;
- struct irqaction *act = &imxtm->act;
ced->name = "mxc_timer1";
ced->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_DYNIRQ;
@@ -287,12 +285,8 @@ static int __init mxc_clockevent_init(struct imx_timer *imxtm)
clockevents_config_and_register(ced, clk_get_rate(imxtm->clk_per),
0xff, 0xfffffffe);
- act->name = "i.MX Timer Tick";
- act->flags = IRQF_TIMER | IRQF_IRQPOLL;
- act->handler = mxc_timer_interrupt;
- act->dev_id = ced;
-
- return setup_irq(imxtm->irq, act);
+ return request_irq(imxtm->irq, mxc_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "i.MX Timer Tick", ced);
}
static void imx1_gpt_setup_tctl(struct imx_timer *imxtm)
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index c90a69c7b5fa..b0fcbaac58b0 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -123,13 +123,6 @@ static struct clock_event_device integrator_clockevent = {
.rating = 300,
};
-static struct irqaction integrator_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = integrator_timer_interrupt,
- .dev_id = &integrator_clockevent,
-};
-
static int integrator_clockevent_init(unsigned long inrate,
void __iomem *base, int irq)
{
@@ -149,7 +142,9 @@ static int integrator_clockevent_init(unsigned long inrate,
timer_reload = rate / HZ;
writel(ctrl, clkevt_base + TIMER_CTRL);
- ret = setup_irq(irq, &integrator_timer_irq);
+ ret = request_irq(irq, integrator_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "timer",
+ &integrator_clockevent);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-meson6.c b/drivers/clocksource/timer-meson6.c
index 9e8b467c71da..99f5510a2b56 100644
--- a/drivers/clocksource/timer-meson6.c
+++ b/drivers/clocksource/timer-meson6.c
@@ -150,13 +150,6 @@ static irqreturn_t meson6_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction meson6_timer_irq = {
- .name = "meson6_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = meson6_timer_interrupt,
- .dev_id = &meson6_clockevent,
-};
-
static int __init meson6_timer_init(struct device_node *node)
{
u32 val;
@@ -194,7 +187,9 @@ static int __init meson6_timer_init(struct device_node *node)
/* Stop the timer A */
meson6_clkevt_time_stop();
- ret = setup_irq(irq, &meson6_timer_irq);
+ ret = request_irq(irq, meson6_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "meson6_timer",
+ &meson6_clockevent);
if (ret) {
pr_warn("failed to setup irq %d\n", irq);
return ret;
diff --git a/drivers/clocksource/timer-orion.c b/drivers/clocksource/timer-orion.c
index 7d487107e3cd..d01ff4181867 100644
--- a/drivers/clocksource/timer-orion.c
+++ b/drivers/clocksource/timer-orion.c
@@ -114,12 +114,6 @@ static irqreturn_t orion_clkevt_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction orion_clkevt_irq = {
- .name = "orion_event",
- .flags = IRQF_TIMER,
- .handler = orion_clkevt_irq_handler,
-};
-
static int __init orion_timer_init(struct device_node *np)
{
unsigned long rate;
@@ -172,7 +166,8 @@ static int __init orion_timer_init(struct device_node *np)
sched_clock_register(orion_read_sched_clock, 32, rate);
/* setup timer1 as clockevent timer */
- ret = setup_irq(irq, &orion_clkevt_irq);
+ ret = request_irq(irq, orion_clkevt_irq_handler, IRQF_TIMER,
+ "orion_event", NULL);
if (ret) {
pr_err("%pOFn: unable to setup irq\n", np);
return ret;
diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c
index d4a9dcf5fba2..c5d469342a9d 100644
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -165,14 +165,6 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER,
- .irq = 0,
- .handler = sirfsoc_timer_interrupt,
- .dev_id = &sirfsoc_clockevent,
-};
-
/* Overwrite weak default sched_clock with more precise one */
static u64 notrace sirfsoc_read_sched_clock(void)
{
@@ -190,6 +182,7 @@ static void __init sirfsoc_clockevent_init(void)
static int __init sirfsoc_prima2_timer_init(struct device_node *np)
{
unsigned long rate;
+ unsigned int irq;
struct clk *clk;
int ret;
@@ -218,7 +211,7 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
+ irq = irq_of_parse_and_map(np, 0);
writel_relaxed(rate / PRIMA2_CLOCK_FREQ / 2 - 1,
sirfsoc_timer_base + SIRFSOC_TIMER_DIV);
@@ -234,7 +227,8 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
sched_clock_register(sirfsoc_read_sched_clock, 64, PRIMA2_CLOCK_FREQ);
- ret = setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ ret = request_irq(irq, sirfsoc_timer_interrupt, IRQF_TIMER,
+ "sirfsoc_timer0", &sirfsoc_clockevent);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-pxa.c b/drivers/clocksource/timer-pxa.c
index 913a5d354a1f..7ad0e5adb2ff 100644
--- a/drivers/clocksource/timer-pxa.c
+++ b/drivers/clocksource/timer-pxa.c
@@ -143,13 +143,6 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
.resume = pxa_timer_resume,
};
-static struct irqaction pxa_ost0_irq = {
- .name = "ost0",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pxa_ost0_interrupt,
- .dev_id = &ckevt_pxa_osmr0,
-};
-
static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
{
int ret;
@@ -161,7 +154,8 @@ static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
ckevt_pxa_osmr0.cpumask = cpumask_of(0);
- ret = setup_irq(irq, &pxa_ost0_irq);
+ ret = request_irq(irq, pxa_ost0_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "ost0", &ckevt_pxa_osmr0);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-sp804.c b/drivers/clocksource/timer-sp804.c
index 9c841980eed1..5cd0abf9b396 100644
--- a/drivers/clocksource/timer-sp804.c
+++ b/drivers/clocksource/timer-sp804.c
@@ -168,13 +168,6 @@ static struct clock_event_device sp804_clockevent = {
.rating = 300,
};
-static struct irqaction sp804_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = sp804_timer_interrupt,
- .dev_id = &sp804_clockevent,
-};
-
int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct clk *clk, const char *name)
{
struct clock_event_device *evt = &sp804_clockevent;
@@ -200,7 +193,9 @@ int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct
writel(0, base + TIMER_CTRL);
- setup_irq(irq, &sp804_timer_irq);
+ if (request_irq(irq, sp804_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &sp804_clockevent))
+ pr_err("%s: request_irq() failed\n", "timer");
clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
return 0;
diff --git a/drivers/clocksource/timer-u300.c b/drivers/clocksource/timer-u300.c
index 32adc3057dda..37cba8dfd45f 100644
--- a/drivers/clocksource/timer-u300.c
+++ b/drivers/clocksource/timer-u300.c
@@ -330,12 +330,6 @@ static irqreturn_t u300_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction u300_timer_irq = {
- .name = "U300 Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = u300_timer_interrupt,
-};
-
/*
* Override the global weak sched_clock symbol with this
* local implementation which uses the clocksource to get some
@@ -420,7 +414,8 @@ static int __init u300_timer_init_of(struct device_node *np)
u300_timer_base + U300_TIMER_APP_RGPT1);
/* Set up the IRQ handler */
- ret = setup_irq(irq, &u300_timer_irq);
+ ret = request_irq(irq, u300_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "U300 Timer Tick", NULL);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-vf-pit.c b/drivers/clocksource/timer-vf-pit.c
index fef0bb4e0c8c..7ad4a8b008c2 100644
--- a/drivers/clocksource/timer-vf-pit.c
+++ b/drivers/clocksource/timer-vf-pit.c
@@ -123,19 +123,13 @@ static struct clock_event_device clockevent_pit = {
.rating = 300,
};
-static struct irqaction pit_timer_irq = {
- .name = "VF pit timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pit_timer_interrupt,
- .dev_id = &clockevent_pit,
-};
-
static int __init pit_clockevent_init(unsigned long rate, int irq)
{
__raw_writel(0, clkevt_base + PITTCTRL);
__raw_writel(PITTFLG_TIF, clkevt_base + PITTFLG);
- BUG_ON(setup_irq(irq, &pit_timer_irq));
+ BUG_ON(request_irq(irq, pit_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "VF pit timer", &clockevent_pit);
clockevent_pit.cpumask = cpumask_of(0);
clockevent_pit.irq = irq;
diff --git a/drivers/clocksource/timer-vt8500.c b/drivers/clocksource/timer-vt8500.c
index bb424bcefbb3..a469b1b5f972 100644
--- a/drivers/clocksource/timer-vt8500.c
+++ b/drivers/clocksource/timer-vt8500.c
@@ -101,13 +101,6 @@ static irqreturn_t vt8500_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq = {
- .name = "vt8500_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = vt8500_timer_interrupt,
- .dev_id = &clockevent,
-};
-
static int __init vt8500_timer_init(struct device_node *np)
{
int timer_irq, ret;
@@ -139,7 +132,9 @@ static int __init vt8500_timer_init(struct device_node *np)
clockevent.cpumask = cpumask_of(0);
- ret = setup_irq(timer_irq, &irq);
+ ret = request_irq(timer_irq, vt8500_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "vt8500_timer",
+ &clockevent);
if (ret) {
pr_err("%s: setup_irq failed for %s\n", __func__,
clockevent.name);
diff --git a/drivers/clocksource/timer-zevio.c b/drivers/clocksource/timer-zevio.c
index c0041561f1be..ecaa3568841c 100644
--- a/drivers/clocksource/timer-zevio.c
+++ b/drivers/clocksource/timer-zevio.c
@@ -53,7 +53,6 @@ struct zevio_timer {
struct clk *clk;
struct clock_event_device clkevt;
- struct irqaction clkevt_irq;
char clocksource_name[64];
char clockevent_name[64];
@@ -172,12 +171,12 @@ static int __init zevio_timer_add(struct device_node *node)
/* Interrupt to occur when timer value matches 0 */
writel(0, timer->base + IO_MATCH(TIMER_MATCH));
- timer->clkevt_irq.name = timer->clockevent_name;
- timer->clkevt_irq.handler = zevio_timer_interrupt;
- timer->clkevt_irq.dev_id = timer;
- timer->clkevt_irq.flags = IRQF_TIMER | IRQF_IRQPOLL;
-
- setup_irq(irqnr, &timer->clkevt_irq);
+ if (request_irq(irqnr, zevio_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL,
+ timer->clockevent_name, timer)) {
+ pr_err("%s: request_irq() failed\n",
+ timer->clockevent_name);
+ }
clockevents_config_and_register(&timer->clkevt,
clk_get_rate(timer->clk), 0x0001, 0xffff);
diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h
index 14f072edbca5..82ebf9223948 100644
--- a/include/linux/dw_apb_timer.h
+++ b/include/linux/dw_apb_timer.h
@@ -25,7 +25,6 @@ struct dw_apb_timer {
struct dw_apb_clock_event_device {
struct clock_event_device ced;
struct dw_apb_timer timer;
- struct irqaction irqaction;
void (*eoi)(struct dw_apb_timer *);
};
base-commit: bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9
prerequisite-patch-id: 72a393507740cabbf554fde9aac2c39c8e3d7b02
prerequisite-patch-id: befe7da3dbb674083ef7b2d310771571c3f70507
prerequisite-patch-id: 9b1f3828296d0850e25c8746196fcc164e091459
prerequisite-patch-id: f9fd9769c0a37d2e4d53cdc9d059c6af4ef2309f
prerequisite-patch-id: 5b93082f3c7c7f56eba074edbdca2927e3d6d544
prerequisite-patch-id: 9ebd7e9eab195385baf2cd5d53f08f63f2d3b9a9
prerequisite-patch-id: 66559f9c50a234a6579126d62995e62e6d4b6786
prerequisite-patch-id: 59347dcebbb06f9cf643e45e1ab350d4c7c2cbd7
prerequisite-patch-id: 1c5e8a6ee2fe7548505148f3256a62b56228b415
prerequisite-patch-id: bb9b630b876744bddb73935540c3048e46e183f6
prerequisite-patch-id: c19f6bf305102d349a69bd0b532f971f2a41ce46
prerequisite-patch-id: 3b1405c8b6bd3b254b902121029be0b2c786063a
prerequisite-patch-id: 24e9ae8ec527032b8e064bb8be9af852e11b6f38
prerequisite-patch-id: 8de445a59c169467d6e08c2062541ff1f066ad86
prerequisite-patch-id: 8d77bd274e8eee1011ae921c5f19a6f416d6f9a3
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v3 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-27 10:59 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-27 10:59 UTC (permalink / raw)
To: linux-kernel, linux-arm-kernel, linux-samsung-soc, linux-amlogic
Cc: Kate Stewart, Linus Walleij, Shawn Guo, Fabio Estevam,
Florian Fainelli, Kevin Hilman, Daniel Lezcano,
Krzysztof Kozlowski, Kukjin Kim, bcm-kernel-feedback-list,
NXP Linux Team, Uwe Kleine-König, Ray Jui, Sascha Hauer,
Thomas Gleixner, Allison Randal, Barry Song, Scott Branden,
Greg Kroah-Hartman, Tony Prisk, Pengutronix Kernel Team,
Enrico Weigelt, Nicolas Saenz Julienne
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
A build error that was reported by kbuild test robot <lkp@intel.com>
in the previous version of the patch also has been fixed.
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
Hi,
There was a build error in v2, which was reported by kbuild test
robot and it was suggested to add Reported-by to the patch. But since
the change is being fixed up w/ original patch, if i add Reported-by,
it will give a feeling as though robot has reported the necessity of
this patch as whole, so i have credited test robot in a different way
in the commit message. If the proper way is to add Reported-by tag
itself or some other way, let me know, i will change accordingly.
Hi Daniel, Linus,
i have removed your Acked-by's as now patch has been modified (though
only slightly the file timer-prima2.c) to fix the build error.
Regards
afzal
v3:
* fix build error in timer-prima2.c as reported by kbuild test robot
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
drivers/clocksource/bcm2835_timer.c | 8 +---
drivers/clocksource/bcm_kona_timer.c | 10 ++---
drivers/clocksource/dw_apb_timer.c | 11 ++---
drivers/clocksource/exynos_mct.c | 12 ++----
drivers/clocksource/mxs_timer.c | 10 +----
drivers/clocksource/nomadik-mtu.c | 11 ++---
drivers/clocksource/samsung_pwm_timer.c | 12 ++----
drivers/clocksource/timer-atlas7.c | 50 +++++++++++------------
drivers/clocksource/timer-cs5535.c | 10 ++---
drivers/clocksource/timer-efm32.c | 10 +----
drivers/clocksource/timer-fsl-ftm.c | 10 +----
drivers/clocksource/timer-imx-gpt.c | 10 +----
drivers/clocksource/timer-integrator-ap.c | 11 ++---
drivers/clocksource/timer-meson6.c | 11 ++---
drivers/clocksource/timer-orion.c | 9 +---
drivers/clocksource/timer-prima2.c | 14 ++-----
drivers/clocksource/timer-pxa.c | 10 +----
drivers/clocksource/timer-sp804.c | 11 ++---
drivers/clocksource/timer-u300.c | 9 +---
drivers/clocksource/timer-vf-pit.c | 10 +----
drivers/clocksource/timer-vt8500.c | 11 ++---
drivers/clocksource/timer-zevio.c | 13 +++---
include/linux/dw_apb_timer.h | 1 -
23 files changed, 83 insertions(+), 191 deletions(-)
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index b235f446ee50..1592650b2c92 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -31,7 +31,6 @@ struct bcm2835_timer {
void __iomem *compare;
int match_mask;
struct clock_event_device evt;
- struct irqaction act;
};
static void __iomem *system_clock __read_mostly;
@@ -113,12 +112,9 @@ static int __init bcm2835_timer_init(struct device_node *node)
timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;
timer->evt.set_next_event = bcm2835_time_set_next_event;
timer->evt.cpumask = cpumask_of(0);
- timer->act.name = node->name;
- timer->act.flags = IRQF_TIMER | IRQF_SHARED;
- timer->act.dev_id = timer;
- timer->act.handler = bcm2835_time_interrupt;
- ret = setup_irq(irq, &timer->act);
+ ret = request_irq(irq, bcm2835_time_interrupt, IRQF_TIMER | IRQF_SHARED,
+ node->name, timer);
if (ret) {
pr_err("Can't set up timer IRQ\n");
goto err_timer_free;
diff --git a/drivers/clocksource/bcm_kona_timer.c b/drivers/clocksource/bcm_kona_timer.c
index 5c40be9880f5..a50ab5c2154f 100644
--- a/drivers/clocksource/bcm_kona_timer.c
+++ b/drivers/clocksource/bcm_kona_timer.c
@@ -160,12 +160,6 @@ static irqreturn_t kona_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction kona_timer_irq = {
- .name = "Kona Timer Tick",
- .flags = IRQF_TIMER,
- .handler = kona_timer_interrupt,
-};
-
static int __init kona_timer_init(struct device_node *node)
{
u32 freq;
@@ -192,7 +186,9 @@ static int __init kona_timer_init(struct device_node *node)
kona_timer_disable_and_clear(timers.tmr_regs);
kona_timer_clockevents_init();
- setup_irq(timers.tmr_irq, &kona_timer_irq);
+ if (request_irq(timers.tmr_irq, kona_timer_interrupt, IRQF_TIMER,
+ "Kona Timer Tick", NULL))
+ pr_err("%s: request_irq() failed\n", "Kona Timer Tick");
kona_timer_set_next_event((arch_timer_rate / HZ), NULL);
return 0;
diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c
index 654766538f93..b207a77b0831 100644
--- a/drivers/clocksource/dw_apb_timer.c
+++ b/drivers/clocksource/dw_apb_timer.c
@@ -270,15 +270,10 @@ dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
dw_ced->ced.rating = rating;
dw_ced->ced.name = name;
- dw_ced->irqaction.name = dw_ced->ced.name;
- dw_ced->irqaction.handler = dw_apb_clockevent_irq;
- dw_ced->irqaction.dev_id = &dw_ced->ced;
- dw_ced->irqaction.irq = irq;
- dw_ced->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL |
- IRQF_NOBALANCING;
-
dw_ced->eoi = apbt_eoi;
- err = setup_irq(irq, &dw_ced->irqaction);
+ err = request_irq(irq, dw_apb_clockevent_irq,
+ IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
+ dw_ced->ced.name, &dw_ced->ced);
if (err) {
pr_err("failed to request timer irq\n");
kfree(dw_ced);
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index a267fe31ef13..fabad79baafc 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -329,19 +329,15 @@ static irqreturn_t exynos4_mct_comp_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mct_comp_event_irq = {
- .name = "mct_comp_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = exynos4_mct_comp_isr,
- .dev_id = &mct_comp_device,
-};
-
static int exynos4_clockevent_init(void)
{
mct_comp_device.cpumask = cpumask_of(0);
clockevents_config_and_register(&mct_comp_device, clk_rate,
0xf, 0xffffffff);
- setup_irq(mct_irqs[MCT_G0_IRQ], &mct_comp_event_irq);
+ if (request_irq(mct_irqs[MCT_G0_IRQ], exynos4_mct_comp_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "mct_comp_irq",
+ &mct_comp_device))
+ pr_err("%s: request_irq() failed\n", "mct_comp_irq");
return 0;
}
diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index f6ddae30933f..bc96a4cbf26c 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -117,13 +117,6 @@ static irqreturn_t mxs_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mxs_timer_irq = {
- .name = "MXS Timer Tick",
- .dev_id = &mxs_clockevent_device,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = mxs_timer_interrupt,
-};
-
static void mxs_irq_clear(char *state)
{
/* Disable interrupt in timer module */
@@ -277,6 +270,7 @@ static int __init mxs_timer_init(struct device_node *np)
if (irq <= 0)
return -EINVAL;
- return setup_irq(irq, &mxs_timer_irq);
+ return request_irq(irq, mxs_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "MXS Timer Tick", &mxs_clockevent_device);
}
TIMER_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init);
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 3f7fa8c01367..f49a631d8f58 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -181,13 +181,6 @@ static irqreturn_t nmdk_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction nmdk_timer_irq = {
- .name = "Nomadik Timer Tick",
- .flags = IRQF_TIMER,
- .handler = nmdk_timer_interrupt,
- .dev_id = &nmdk_clkevt,
-};
-
static int __init nmdk_timer_init(void __iomem *base, int irq,
struct clk *pclk, struct clk *clk)
{
@@ -232,7 +225,9 @@ static int __init nmdk_timer_init(void __iomem *base, int irq,
sched_clock_register(nomadik_read_sched_clock, 32, rate);
/* Timer 1 is used for events, register irq and clockevents */
- setup_irq(irq, &nmdk_timer_irq);
+ if (request_irq(irq, nmdk_timer_interrupt, IRQF_TIMER,
+ "Nomadik Timer Tick", &nmdk_clkevt))
+ pr_err("%s: request_irq() failed\n", "Nomadik Timer Tick");
nmdk_clkevt.cpumask = cpumask_of(0);
nmdk_clkevt.irq = irq;
clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index dae1b2b5a0c5..f760229d0c7f 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -256,13 +256,6 @@ static irqreturn_t samsung_clock_event_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction samsung_clock_event_irq = {
- .name = "samsung_time_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = samsung_clock_event_isr,
- .dev_id = &time_event_device,
-};
-
static void __init samsung_clockevent_init(void)
{
unsigned long pclk;
@@ -282,7 +275,10 @@ static void __init samsung_clockevent_init(void)
clock_rate, 1, pwm.tcnt_max);
irq_number = pwm.irq[pwm.event_id];
- setup_irq(irq_number, &samsung_clock_event_irq);
+ if (request_irq(irq_number, samsung_clock_event_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "samsung_time_irq",
+ &time_event_device))
+ pr_err("%s: request_irq() failed\n", "samsung_time_irq");
if (pwm.variant.has_tint_cstat) {
u32 mask = (1 << pwm.event_id);
diff --git a/drivers/clocksource/timer-atlas7.c b/drivers/clocksource/timer-atlas7.c
index 93c3ac6d72bd..c21c91c2bc56 100644
--- a/drivers/clocksource/timer-atlas7.c
+++ b/drivers/clocksource/timer-atlas7.c
@@ -159,29 +159,23 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
-
-static struct irqaction sirfsoc_timer1_irq = {
- .name = "sirfsoc_timer1",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
+static unsigned int sirfsoc_timer_irq, sirfsoc_timer1_irq;
static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
{
struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
- struct irqaction *action;
-
- if (cpu == 0)
- action = &sirfsoc_timer_irq;
- else
- action = &sirfsoc_timer1_irq;
+ unsigned int irq;
+ const char *name;
+
+ if (cpu == 0) {
+ irq = sirfsoc_timer_irq;
+ name = "sirfsoc_timer0";
+ } else {
+ irq = sirfsoc_timer1_irq;
+ name = "sirfsoc_timer1";
+ }
- ce->irq = action->irq;
+ ce->irq = irq;
ce->name = "local_timer";
ce->features = CLOCK_EVT_FEAT_ONESHOT;
ce->rating = 200;
@@ -196,9 +190,9 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
ce->min_delta_ticks = 2;
ce->cpumask = cpumask_of(cpu);
- action->dev_id = ce;
- BUG_ON(setup_irq(ce->irq, action));
- irq_force_affinity(action->irq, cpumask_of(cpu));
+ BUG_ON(request_irq(ce->irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER | IRQF_NOBALANCING, name, ce));
+ irq_force_affinity(ce->irq, cpumask_of(cpu));
clockevents_register_device(ce);
return 0;
@@ -206,12 +200,14 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
static int sirfsoc_local_timer_dying_cpu(unsigned int cpu)
{
+ struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
+
sirfsoc_timer_count_disable(1);
if (cpu == 0)
- remove_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ free_irq(sirfsoc_timer_irq, ce);
else
- remove_irq(sirfsoc_timer1_irq.irq, &sirfsoc_timer1_irq);
+ free_irq(sirfsoc_timer1_irq, ce);
return 0;
}
@@ -268,14 +264,14 @@ static int __init sirfsoc_of_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
- if (!sirfsoc_timer_irq.irq) {
+ sirfsoc_timer_irq = irq_of_parse_and_map(np, 0);
+ if (!sirfsoc_timer_irq) {
pr_err("No irq passed for timer0 via DT\n");
return -EINVAL;
}
- sirfsoc_timer1_irq.irq = irq_of_parse_and_map(np, 1);
- if (!sirfsoc_timer1_irq.irq) {
+ sirfsoc_timer1_irq = irq_of_parse_and_map(np, 1);
+ if (!sirfsoc_timer1_irq) {
pr_err("No irq passed for timer1 via DT\n");
return -EINVAL;
}
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 8f6bc536bef2..51ea0509fb25 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -131,12 +131,6 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mfgptirq = {
- .handler = mfgpt_tick,
- .flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- .name = DRV_NAME,
-};
-
static int __init cs5535_mfgpt_init(void)
{
struct cs5535_mfgpt_timer *timer;
@@ -158,7 +152,9 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = setup_irq(timer_irq, &mfgptirq);
+ ret = request_irq(timer_irq, mfgpt_tick,
+ IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
+ DRV_NAME, NULL);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
diff --git a/drivers/clocksource/timer-efm32.c b/drivers/clocksource/timer-efm32.c
index 5a22cb079ad3..441a4b916841 100644
--- a/drivers/clocksource/timer-efm32.c
+++ b/drivers/clocksource/timer-efm32.c
@@ -119,13 +119,6 @@ static struct efm32_clock_event_ddata clock_event_ddata = {
},
};
-static struct irqaction efm32_clock_event_irq = {
- .name = "efm32 clockevent",
- .flags = IRQF_TIMER,
- .handler = efm32_clock_event_handler,
- .dev_id = &clock_event_ddata,
-};
-
static int __init efm32_clocksource_init(struct device_node *np)
{
struct clk *clk;
@@ -230,7 +223,8 @@ static int __init efm32_clockevent_init(struct device_node *np)
DIV_ROUND_CLOSEST(rate, 1024),
0xf, 0xffff);
- ret = setup_irq(irq, &efm32_clock_event_irq);
+ ret = request_irq(irq, efm32_clock_event_handler, IRQF_TIMER,
+ "efm32 clockevent", &clock_event_ddata);
if (ret) {
pr_err("Failed setup irq\n");
goto err_setup_irq;
diff --git a/drivers/clocksource/timer-fsl-ftm.c b/drivers/clocksource/timer-fsl-ftm.c
index a9d9a3ca5996..12a2ed7cfaff 100644
--- a/drivers/clocksource/timer-fsl-ftm.c
+++ b/drivers/clocksource/timer-fsl-ftm.c
@@ -176,13 +176,6 @@ static struct clock_event_device ftm_clockevent = {
.rating = 300,
};
-static struct irqaction ftm_timer_irq = {
- .name = "Freescale ftm timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ftm_evt_interrupt,
- .dev_id = &ftm_clockevent,
-};
-
static int __init ftm_clockevent_init(unsigned long freq, int irq)
{
int err;
@@ -192,7 +185,8 @@ static int __init ftm_clockevent_init(unsigned long freq, int irq)
ftm_reset_counter(priv->clkevt_base);
- err = setup_irq(irq, &ftm_timer_irq);
+ err = request_irq(irq, ftm_evt_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "Freescale ftm timer", &ftm_clockevent);
if (err) {
pr_err("ftm: setup irq failed: %d\n", err);
return err;
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 706c0d0ff56c..7b2c70f2f353 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -67,7 +67,6 @@ struct imx_timer {
struct clk *clk_ipg;
const struct imx_gpt_data *gpt;
struct clock_event_device ced;
- struct irqaction act;
};
struct imx_gpt_data {
@@ -273,7 +272,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
static int __init mxc_clockevent_init(struct imx_timer *imxtm)
{
struct clock_event_device *ced = &imxtm->ced;
- struct irqaction *act = &imxtm->act;
ced->name = "mxc_timer1";
ced->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_DYNIRQ;
@@ -287,12 +285,8 @@ static int __init mxc_clockevent_init(struct imx_timer *imxtm)
clockevents_config_and_register(ced, clk_get_rate(imxtm->clk_per),
0xff, 0xfffffffe);
- act->name = "i.MX Timer Tick";
- act->flags = IRQF_TIMER | IRQF_IRQPOLL;
- act->handler = mxc_timer_interrupt;
- act->dev_id = ced;
-
- return setup_irq(imxtm->irq, act);
+ return request_irq(imxtm->irq, mxc_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "i.MX Timer Tick", ced);
}
static void imx1_gpt_setup_tctl(struct imx_timer *imxtm)
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index c90a69c7b5fa..b0fcbaac58b0 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -123,13 +123,6 @@ static struct clock_event_device integrator_clockevent = {
.rating = 300,
};
-static struct irqaction integrator_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = integrator_timer_interrupt,
- .dev_id = &integrator_clockevent,
-};
-
static int integrator_clockevent_init(unsigned long inrate,
void __iomem *base, int irq)
{
@@ -149,7 +142,9 @@ static int integrator_clockevent_init(unsigned long inrate,
timer_reload = rate / HZ;
writel(ctrl, clkevt_base + TIMER_CTRL);
- ret = setup_irq(irq, &integrator_timer_irq);
+ ret = request_irq(irq, integrator_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "timer",
+ &integrator_clockevent);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-meson6.c b/drivers/clocksource/timer-meson6.c
index 9e8b467c71da..99f5510a2b56 100644
--- a/drivers/clocksource/timer-meson6.c
+++ b/drivers/clocksource/timer-meson6.c
@@ -150,13 +150,6 @@ static irqreturn_t meson6_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction meson6_timer_irq = {
- .name = "meson6_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = meson6_timer_interrupt,
- .dev_id = &meson6_clockevent,
-};
-
static int __init meson6_timer_init(struct device_node *node)
{
u32 val;
@@ -194,7 +187,9 @@ static int __init meson6_timer_init(struct device_node *node)
/* Stop the timer A */
meson6_clkevt_time_stop();
- ret = setup_irq(irq, &meson6_timer_irq);
+ ret = request_irq(irq, meson6_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "meson6_timer",
+ &meson6_clockevent);
if (ret) {
pr_warn("failed to setup irq %d\n", irq);
return ret;
diff --git a/drivers/clocksource/timer-orion.c b/drivers/clocksource/timer-orion.c
index 7d487107e3cd..d01ff4181867 100644
--- a/drivers/clocksource/timer-orion.c
+++ b/drivers/clocksource/timer-orion.c
@@ -114,12 +114,6 @@ static irqreturn_t orion_clkevt_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction orion_clkevt_irq = {
- .name = "orion_event",
- .flags = IRQF_TIMER,
- .handler = orion_clkevt_irq_handler,
-};
-
static int __init orion_timer_init(struct device_node *np)
{
unsigned long rate;
@@ -172,7 +166,8 @@ static int __init orion_timer_init(struct device_node *np)
sched_clock_register(orion_read_sched_clock, 32, rate);
/* setup timer1 as clockevent timer */
- ret = setup_irq(irq, &orion_clkevt_irq);
+ ret = request_irq(irq, orion_clkevt_irq_handler, IRQF_TIMER,
+ "orion_event", NULL);
if (ret) {
pr_err("%pOFn: unable to setup irq\n", np);
return ret;
diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c
index d4a9dcf5fba2..c5d469342a9d 100644
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -165,14 +165,6 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER,
- .irq = 0,
- .handler = sirfsoc_timer_interrupt,
- .dev_id = &sirfsoc_clockevent,
-};
-
/* Overwrite weak default sched_clock with more precise one */
static u64 notrace sirfsoc_read_sched_clock(void)
{
@@ -190,6 +182,7 @@ static void __init sirfsoc_clockevent_init(void)
static int __init sirfsoc_prima2_timer_init(struct device_node *np)
{
unsigned long rate;
+ unsigned int irq;
struct clk *clk;
int ret;
@@ -218,7 +211,7 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
+ irq = irq_of_parse_and_map(np, 0);
writel_relaxed(rate / PRIMA2_CLOCK_FREQ / 2 - 1,
sirfsoc_timer_base + SIRFSOC_TIMER_DIV);
@@ -234,7 +227,8 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
sched_clock_register(sirfsoc_read_sched_clock, 64, PRIMA2_CLOCK_FREQ);
- ret = setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ ret = request_irq(irq, sirfsoc_timer_interrupt, IRQF_TIMER,
+ "sirfsoc_timer0", &sirfsoc_clockevent);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-pxa.c b/drivers/clocksource/timer-pxa.c
index 913a5d354a1f..7ad0e5adb2ff 100644
--- a/drivers/clocksource/timer-pxa.c
+++ b/drivers/clocksource/timer-pxa.c
@@ -143,13 +143,6 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
.resume = pxa_timer_resume,
};
-static struct irqaction pxa_ost0_irq = {
- .name = "ost0",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pxa_ost0_interrupt,
- .dev_id = &ckevt_pxa_osmr0,
-};
-
static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
{
int ret;
@@ -161,7 +154,8 @@ static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
ckevt_pxa_osmr0.cpumask = cpumask_of(0);
- ret = setup_irq(irq, &pxa_ost0_irq);
+ ret = request_irq(irq, pxa_ost0_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "ost0", &ckevt_pxa_osmr0);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-sp804.c b/drivers/clocksource/timer-sp804.c
index 9c841980eed1..5cd0abf9b396 100644
--- a/drivers/clocksource/timer-sp804.c
+++ b/drivers/clocksource/timer-sp804.c
@@ -168,13 +168,6 @@ static struct clock_event_device sp804_clockevent = {
.rating = 300,
};
-static struct irqaction sp804_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = sp804_timer_interrupt,
- .dev_id = &sp804_clockevent,
-};
-
int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct clk *clk, const char *name)
{
struct clock_event_device *evt = &sp804_clockevent;
@@ -200,7 +193,9 @@ int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct
writel(0, base + TIMER_CTRL);
- setup_irq(irq, &sp804_timer_irq);
+ if (request_irq(irq, sp804_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &sp804_clockevent))
+ pr_err("%s: request_irq() failed\n", "timer");
clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
return 0;
diff --git a/drivers/clocksource/timer-u300.c b/drivers/clocksource/timer-u300.c
index 32adc3057dda..37cba8dfd45f 100644
--- a/drivers/clocksource/timer-u300.c
+++ b/drivers/clocksource/timer-u300.c
@@ -330,12 +330,6 @@ static irqreturn_t u300_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction u300_timer_irq = {
- .name = "U300 Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = u300_timer_interrupt,
-};
-
/*
* Override the global weak sched_clock symbol with this
* local implementation which uses the clocksource to get some
@@ -420,7 +414,8 @@ static int __init u300_timer_init_of(struct device_node *np)
u300_timer_base + U300_TIMER_APP_RGPT1);
/* Set up the IRQ handler */
- ret = setup_irq(irq, &u300_timer_irq);
+ ret = request_irq(irq, u300_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "U300 Timer Tick", NULL);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-vf-pit.c b/drivers/clocksource/timer-vf-pit.c
index fef0bb4e0c8c..7ad4a8b008c2 100644
--- a/drivers/clocksource/timer-vf-pit.c
+++ b/drivers/clocksource/timer-vf-pit.c
@@ -123,19 +123,13 @@ static struct clock_event_device clockevent_pit = {
.rating = 300,
};
-static struct irqaction pit_timer_irq = {
- .name = "VF pit timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pit_timer_interrupt,
- .dev_id = &clockevent_pit,
-};
-
static int __init pit_clockevent_init(unsigned long rate, int irq)
{
__raw_writel(0, clkevt_base + PITTCTRL);
__raw_writel(PITTFLG_TIF, clkevt_base + PITTFLG);
- BUG_ON(setup_irq(irq, &pit_timer_irq));
+ BUG_ON(request_irq(irq, pit_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "VF pit timer", &clockevent_pit);
clockevent_pit.cpumask = cpumask_of(0);
clockevent_pit.irq = irq;
diff --git a/drivers/clocksource/timer-vt8500.c b/drivers/clocksource/timer-vt8500.c
index bb424bcefbb3..a469b1b5f972 100644
--- a/drivers/clocksource/timer-vt8500.c
+++ b/drivers/clocksource/timer-vt8500.c
@@ -101,13 +101,6 @@ static irqreturn_t vt8500_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq = {
- .name = "vt8500_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = vt8500_timer_interrupt,
- .dev_id = &clockevent,
-};
-
static int __init vt8500_timer_init(struct device_node *np)
{
int timer_irq, ret;
@@ -139,7 +132,9 @@ static int __init vt8500_timer_init(struct device_node *np)
clockevent.cpumask = cpumask_of(0);
- ret = setup_irq(timer_irq, &irq);
+ ret = request_irq(timer_irq, vt8500_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "vt8500_timer",
+ &clockevent);
if (ret) {
pr_err("%s: setup_irq failed for %s\n", __func__,
clockevent.name);
diff --git a/drivers/clocksource/timer-zevio.c b/drivers/clocksource/timer-zevio.c
index c0041561f1be..ecaa3568841c 100644
--- a/drivers/clocksource/timer-zevio.c
+++ b/drivers/clocksource/timer-zevio.c
@@ -53,7 +53,6 @@ struct zevio_timer {
struct clk *clk;
struct clock_event_device clkevt;
- struct irqaction clkevt_irq;
char clocksource_name[64];
char clockevent_name[64];
@@ -172,12 +171,12 @@ static int __init zevio_timer_add(struct device_node *node)
/* Interrupt to occur when timer value matches 0 */
writel(0, timer->base + IO_MATCH(TIMER_MATCH));
- timer->clkevt_irq.name = timer->clockevent_name;
- timer->clkevt_irq.handler = zevio_timer_interrupt;
- timer->clkevt_irq.dev_id = timer;
- timer->clkevt_irq.flags = IRQF_TIMER | IRQF_IRQPOLL;
-
- setup_irq(irqnr, &timer->clkevt_irq);
+ if (request_irq(irqnr, zevio_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL,
+ timer->clockevent_name, timer)) {
+ pr_err("%s: request_irq() failed\n",
+ timer->clockevent_name);
+ }
clockevents_config_and_register(&timer->clkevt,
clk_get_rate(timer->clk), 0x0001, 0xffff);
diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h
index 14f072edbca5..82ebf9223948 100644
--- a/include/linux/dw_apb_timer.h
+++ b/include/linux/dw_apb_timer.h
@@ -25,7 +25,6 @@ struct dw_apb_timer {
struct dw_apb_clock_event_device {
struct clock_event_device ced;
struct dw_apb_timer timer;
- struct irqaction irqaction;
void (*eoi)(struct dw_apb_timer *);
};
base-commit: bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9
prerequisite-patch-id: 72a393507740cabbf554fde9aac2c39c8e3d7b02
prerequisite-patch-id: befe7da3dbb674083ef7b2d310771571c3f70507
prerequisite-patch-id: 9b1f3828296d0850e25c8746196fcc164e091459
prerequisite-patch-id: f9fd9769c0a37d2e4d53cdc9d059c6af4ef2309f
prerequisite-patch-id: 5b93082f3c7c7f56eba074edbdca2927e3d6d544
prerequisite-patch-id: 9ebd7e9eab195385baf2cd5d53f08f63f2d3b9a9
prerequisite-patch-id: 66559f9c50a234a6579126d62995e62e6d4b6786
prerequisite-patch-id: 59347dcebbb06f9cf643e45e1ab350d4c7c2cbd7
prerequisite-patch-id: 1c5e8a6ee2fe7548505148f3256a62b56228b415
prerequisite-patch-id: bb9b630b876744bddb73935540c3048e46e183f6
prerequisite-patch-id: c19f6bf305102d349a69bd0b532f971f2a41ce46
prerequisite-patch-id: 3b1405c8b6bd3b254b902121029be0b2c786063a
prerequisite-patch-id: 24e9ae8ec527032b8e064bb8be9af852e11b6f38
prerequisite-patch-id: 8de445a59c169467d6e08c2062541ff1f066ad86
prerequisite-patch-id: 8d77bd274e8eee1011ae921c5f19a6f416d6f9a3
--
2.25.1
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^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v3 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-27 10:59 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-27 10:59 UTC (permalink / raw)
To: linux-kernel, linux-arm-kernel, linux-samsung-soc, linux-amlogic
Cc: Kate Stewart, Linus Walleij, Shawn Guo, Fabio Estevam,
Florian Fainelli, Kevin Hilman, Daniel Lezcano,
Krzysztof Kozlowski, Kukjin Kim, bcm-kernel-feedback-list,
NXP Linux Team, Uwe Kleine-König, Ray Jui, Sascha Hauer,
Thomas Gleixner, Allison Randal, Barry Song, Scott Branden,
Greg Kroah-Hartman, Tony Prisk, Pengutronix Kernel Team,
Enrico Weigelt, Nicolas Saenz Julienne
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
A build error that was reported by kbuild test robot <lkp@intel.com>
in the previous version of the patch also has been fixed.
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
Hi,
There was a build error in v2, which was reported by kbuild test
robot and it was suggested to add Reported-by to the patch. But since
the change is being fixed up w/ original patch, if i add Reported-by,
it will give a feeling as though robot has reported the necessity of
this patch as whole, so i have credited test robot in a different way
in the commit message. If the proper way is to add Reported-by tag
itself or some other way, let me know, i will change accordingly.
Hi Daniel, Linus,
i have removed your Acked-by's as now patch has been modified (though
only slightly the file timer-prima2.c) to fix the build error.
Regards
afzal
v3:
* fix build error in timer-prima2.c as reported by kbuild test robot
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
drivers/clocksource/bcm2835_timer.c | 8 +---
drivers/clocksource/bcm_kona_timer.c | 10 ++---
drivers/clocksource/dw_apb_timer.c | 11 ++---
drivers/clocksource/exynos_mct.c | 12 ++----
drivers/clocksource/mxs_timer.c | 10 +----
drivers/clocksource/nomadik-mtu.c | 11 ++---
drivers/clocksource/samsung_pwm_timer.c | 12 ++----
drivers/clocksource/timer-atlas7.c | 50 +++++++++++------------
drivers/clocksource/timer-cs5535.c | 10 ++---
drivers/clocksource/timer-efm32.c | 10 +----
drivers/clocksource/timer-fsl-ftm.c | 10 +----
drivers/clocksource/timer-imx-gpt.c | 10 +----
drivers/clocksource/timer-integrator-ap.c | 11 ++---
drivers/clocksource/timer-meson6.c | 11 ++---
drivers/clocksource/timer-orion.c | 9 +---
drivers/clocksource/timer-prima2.c | 14 ++-----
drivers/clocksource/timer-pxa.c | 10 +----
drivers/clocksource/timer-sp804.c | 11 ++---
drivers/clocksource/timer-u300.c | 9 +---
drivers/clocksource/timer-vf-pit.c | 10 +----
drivers/clocksource/timer-vt8500.c | 11 ++---
drivers/clocksource/timer-zevio.c | 13 +++---
include/linux/dw_apb_timer.h | 1 -
23 files changed, 83 insertions(+), 191 deletions(-)
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index b235f446ee50..1592650b2c92 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -31,7 +31,6 @@ struct bcm2835_timer {
void __iomem *compare;
int match_mask;
struct clock_event_device evt;
- struct irqaction act;
};
static void __iomem *system_clock __read_mostly;
@@ -113,12 +112,9 @@ static int __init bcm2835_timer_init(struct device_node *node)
timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;
timer->evt.set_next_event = bcm2835_time_set_next_event;
timer->evt.cpumask = cpumask_of(0);
- timer->act.name = node->name;
- timer->act.flags = IRQF_TIMER | IRQF_SHARED;
- timer->act.dev_id = timer;
- timer->act.handler = bcm2835_time_interrupt;
- ret = setup_irq(irq, &timer->act);
+ ret = request_irq(irq, bcm2835_time_interrupt, IRQF_TIMER | IRQF_SHARED,
+ node->name, timer);
if (ret) {
pr_err("Can't set up timer IRQ\n");
goto err_timer_free;
diff --git a/drivers/clocksource/bcm_kona_timer.c b/drivers/clocksource/bcm_kona_timer.c
index 5c40be9880f5..a50ab5c2154f 100644
--- a/drivers/clocksource/bcm_kona_timer.c
+++ b/drivers/clocksource/bcm_kona_timer.c
@@ -160,12 +160,6 @@ static irqreturn_t kona_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction kona_timer_irq = {
- .name = "Kona Timer Tick",
- .flags = IRQF_TIMER,
- .handler = kona_timer_interrupt,
-};
-
static int __init kona_timer_init(struct device_node *node)
{
u32 freq;
@@ -192,7 +186,9 @@ static int __init kona_timer_init(struct device_node *node)
kona_timer_disable_and_clear(timers.tmr_regs);
kona_timer_clockevents_init();
- setup_irq(timers.tmr_irq, &kona_timer_irq);
+ if (request_irq(timers.tmr_irq, kona_timer_interrupt, IRQF_TIMER,
+ "Kona Timer Tick", NULL))
+ pr_err("%s: request_irq() failed\n", "Kona Timer Tick");
kona_timer_set_next_event((arch_timer_rate / HZ), NULL);
return 0;
diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c
index 654766538f93..b207a77b0831 100644
--- a/drivers/clocksource/dw_apb_timer.c
+++ b/drivers/clocksource/dw_apb_timer.c
@@ -270,15 +270,10 @@ dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
dw_ced->ced.rating = rating;
dw_ced->ced.name = name;
- dw_ced->irqaction.name = dw_ced->ced.name;
- dw_ced->irqaction.handler = dw_apb_clockevent_irq;
- dw_ced->irqaction.dev_id = &dw_ced->ced;
- dw_ced->irqaction.irq = irq;
- dw_ced->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL |
- IRQF_NOBALANCING;
-
dw_ced->eoi = apbt_eoi;
- err = setup_irq(irq, &dw_ced->irqaction);
+ err = request_irq(irq, dw_apb_clockevent_irq,
+ IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
+ dw_ced->ced.name, &dw_ced->ced);
if (err) {
pr_err("failed to request timer irq\n");
kfree(dw_ced);
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index a267fe31ef13..fabad79baafc 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -329,19 +329,15 @@ static irqreturn_t exynos4_mct_comp_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mct_comp_event_irq = {
- .name = "mct_comp_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = exynos4_mct_comp_isr,
- .dev_id = &mct_comp_device,
-};
-
static int exynos4_clockevent_init(void)
{
mct_comp_device.cpumask = cpumask_of(0);
clockevents_config_and_register(&mct_comp_device, clk_rate,
0xf, 0xffffffff);
- setup_irq(mct_irqs[MCT_G0_IRQ], &mct_comp_event_irq);
+ if (request_irq(mct_irqs[MCT_G0_IRQ], exynos4_mct_comp_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "mct_comp_irq",
+ &mct_comp_device))
+ pr_err("%s: request_irq() failed\n", "mct_comp_irq");
return 0;
}
diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index f6ddae30933f..bc96a4cbf26c 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -117,13 +117,6 @@ static irqreturn_t mxs_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mxs_timer_irq = {
- .name = "MXS Timer Tick",
- .dev_id = &mxs_clockevent_device,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = mxs_timer_interrupt,
-};
-
static void mxs_irq_clear(char *state)
{
/* Disable interrupt in timer module */
@@ -277,6 +270,7 @@ static int __init mxs_timer_init(struct device_node *np)
if (irq <= 0)
return -EINVAL;
- return setup_irq(irq, &mxs_timer_irq);
+ return request_irq(irq, mxs_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "MXS Timer Tick", &mxs_clockevent_device);
}
TIMER_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init);
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 3f7fa8c01367..f49a631d8f58 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -181,13 +181,6 @@ static irqreturn_t nmdk_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction nmdk_timer_irq = {
- .name = "Nomadik Timer Tick",
- .flags = IRQF_TIMER,
- .handler = nmdk_timer_interrupt,
- .dev_id = &nmdk_clkevt,
-};
-
static int __init nmdk_timer_init(void __iomem *base, int irq,
struct clk *pclk, struct clk *clk)
{
@@ -232,7 +225,9 @@ static int __init nmdk_timer_init(void __iomem *base, int irq,
sched_clock_register(nomadik_read_sched_clock, 32, rate);
/* Timer 1 is used for events, register irq and clockevents */
- setup_irq(irq, &nmdk_timer_irq);
+ if (request_irq(irq, nmdk_timer_interrupt, IRQF_TIMER,
+ "Nomadik Timer Tick", &nmdk_clkevt))
+ pr_err("%s: request_irq() failed\n", "Nomadik Timer Tick");
nmdk_clkevt.cpumask = cpumask_of(0);
nmdk_clkevt.irq = irq;
clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index dae1b2b5a0c5..f760229d0c7f 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -256,13 +256,6 @@ static irqreturn_t samsung_clock_event_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction samsung_clock_event_irq = {
- .name = "samsung_time_irq",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = samsung_clock_event_isr,
- .dev_id = &time_event_device,
-};
-
static void __init samsung_clockevent_init(void)
{
unsigned long pclk;
@@ -282,7 +275,10 @@ static void __init samsung_clockevent_init(void)
clock_rate, 1, pwm.tcnt_max);
irq_number = pwm.irq[pwm.event_id];
- setup_irq(irq_number, &samsung_clock_event_irq);
+ if (request_irq(irq_number, samsung_clock_event_isr,
+ IRQF_TIMER | IRQF_IRQPOLL, "samsung_time_irq",
+ &time_event_device))
+ pr_err("%s: request_irq() failed\n", "samsung_time_irq");
if (pwm.variant.has_tint_cstat) {
u32 mask = (1 << pwm.event_id);
diff --git a/drivers/clocksource/timer-atlas7.c b/drivers/clocksource/timer-atlas7.c
index 93c3ac6d72bd..c21c91c2bc56 100644
--- a/drivers/clocksource/timer-atlas7.c
+++ b/drivers/clocksource/timer-atlas7.c
@@ -159,29 +159,23 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
-
-static struct irqaction sirfsoc_timer1_irq = {
- .name = "sirfsoc_timer1",
- .flags = IRQF_TIMER | IRQF_NOBALANCING,
- .handler = sirfsoc_timer_interrupt,
-};
+static unsigned int sirfsoc_timer_irq, sirfsoc_timer1_irq;
static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
{
struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
- struct irqaction *action;
-
- if (cpu == 0)
- action = &sirfsoc_timer_irq;
- else
- action = &sirfsoc_timer1_irq;
+ unsigned int irq;
+ const char *name;
+
+ if (cpu == 0) {
+ irq = sirfsoc_timer_irq;
+ name = "sirfsoc_timer0";
+ } else {
+ irq = sirfsoc_timer1_irq;
+ name = "sirfsoc_timer1";
+ }
- ce->irq = action->irq;
+ ce->irq = irq;
ce->name = "local_timer";
ce->features = CLOCK_EVT_FEAT_ONESHOT;
ce->rating = 200;
@@ -196,9 +190,9 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
ce->min_delta_ticks = 2;
ce->cpumask = cpumask_of(cpu);
- action->dev_id = ce;
- BUG_ON(setup_irq(ce->irq, action));
- irq_force_affinity(action->irq, cpumask_of(cpu));
+ BUG_ON(request_irq(ce->irq, sirfsoc_timer_interrupt,
+ IRQF_TIMER | IRQF_NOBALANCING, name, ce));
+ irq_force_affinity(ce->irq, cpumask_of(cpu));
clockevents_register_device(ce);
return 0;
@@ -206,12 +200,14 @@ static int sirfsoc_local_timer_starting_cpu(unsigned int cpu)
static int sirfsoc_local_timer_dying_cpu(unsigned int cpu)
{
+ struct clock_event_device *ce = per_cpu_ptr(sirfsoc_clockevent, cpu);
+
sirfsoc_timer_count_disable(1);
if (cpu == 0)
- remove_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ free_irq(sirfsoc_timer_irq, ce);
else
- remove_irq(sirfsoc_timer1_irq.irq, &sirfsoc_timer1_irq);
+ free_irq(sirfsoc_timer1_irq, ce);
return 0;
}
@@ -268,14 +264,14 @@ static int __init sirfsoc_of_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
- if (!sirfsoc_timer_irq.irq) {
+ sirfsoc_timer_irq = irq_of_parse_and_map(np, 0);
+ if (!sirfsoc_timer_irq) {
pr_err("No irq passed for timer0 via DT\n");
return -EINVAL;
}
- sirfsoc_timer1_irq.irq = irq_of_parse_and_map(np, 1);
- if (!sirfsoc_timer1_irq.irq) {
+ sirfsoc_timer1_irq = irq_of_parse_and_map(np, 1);
+ if (!sirfsoc_timer1_irq) {
pr_err("No irq passed for timer1 via DT\n");
return -EINVAL;
}
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 8f6bc536bef2..51ea0509fb25 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -131,12 +131,6 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction mfgptirq = {
- .handler = mfgpt_tick,
- .flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- .name = DRV_NAME,
-};
-
static int __init cs5535_mfgpt_init(void)
{
struct cs5535_mfgpt_timer *timer;
@@ -158,7 +152,9 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = setup_irq(timer_irq, &mfgptirq);
+ ret = request_irq(timer_irq, mfgpt_tick,
+ IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
+ DRV_NAME, NULL);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
diff --git a/drivers/clocksource/timer-efm32.c b/drivers/clocksource/timer-efm32.c
index 5a22cb079ad3..441a4b916841 100644
--- a/drivers/clocksource/timer-efm32.c
+++ b/drivers/clocksource/timer-efm32.c
@@ -119,13 +119,6 @@ static struct efm32_clock_event_ddata clock_event_ddata = {
},
};
-static struct irqaction efm32_clock_event_irq = {
- .name = "efm32 clockevent",
- .flags = IRQF_TIMER,
- .handler = efm32_clock_event_handler,
- .dev_id = &clock_event_ddata,
-};
-
static int __init efm32_clocksource_init(struct device_node *np)
{
struct clk *clk;
@@ -230,7 +223,8 @@ static int __init efm32_clockevent_init(struct device_node *np)
DIV_ROUND_CLOSEST(rate, 1024),
0xf, 0xffff);
- ret = setup_irq(irq, &efm32_clock_event_irq);
+ ret = request_irq(irq, efm32_clock_event_handler, IRQF_TIMER,
+ "efm32 clockevent", &clock_event_ddata);
if (ret) {
pr_err("Failed setup irq\n");
goto err_setup_irq;
diff --git a/drivers/clocksource/timer-fsl-ftm.c b/drivers/clocksource/timer-fsl-ftm.c
index a9d9a3ca5996..12a2ed7cfaff 100644
--- a/drivers/clocksource/timer-fsl-ftm.c
+++ b/drivers/clocksource/timer-fsl-ftm.c
@@ -176,13 +176,6 @@ static struct clock_event_device ftm_clockevent = {
.rating = 300,
};
-static struct irqaction ftm_timer_irq = {
- .name = "Freescale ftm timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = ftm_evt_interrupt,
- .dev_id = &ftm_clockevent,
-};
-
static int __init ftm_clockevent_init(unsigned long freq, int irq)
{
int err;
@@ -192,7 +185,8 @@ static int __init ftm_clockevent_init(unsigned long freq, int irq)
ftm_reset_counter(priv->clkevt_base);
- err = setup_irq(irq, &ftm_timer_irq);
+ err = request_irq(irq, ftm_evt_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "Freescale ftm timer", &ftm_clockevent);
if (err) {
pr_err("ftm: setup irq failed: %d\n", err);
return err;
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index 706c0d0ff56c..7b2c70f2f353 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -67,7 +67,6 @@ struct imx_timer {
struct clk *clk_ipg;
const struct imx_gpt_data *gpt;
struct clock_event_device ced;
- struct irqaction act;
};
struct imx_gpt_data {
@@ -273,7 +272,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
static int __init mxc_clockevent_init(struct imx_timer *imxtm)
{
struct clock_event_device *ced = &imxtm->ced;
- struct irqaction *act = &imxtm->act;
ced->name = "mxc_timer1";
ced->features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_DYNIRQ;
@@ -287,12 +285,8 @@ static int __init mxc_clockevent_init(struct imx_timer *imxtm)
clockevents_config_and_register(ced, clk_get_rate(imxtm->clk_per),
0xff, 0xfffffffe);
- act->name = "i.MX Timer Tick";
- act->flags = IRQF_TIMER | IRQF_IRQPOLL;
- act->handler = mxc_timer_interrupt;
- act->dev_id = ced;
-
- return setup_irq(imxtm->irq, act);
+ return request_irq(imxtm->irq, mxc_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "i.MX Timer Tick", ced);
}
static void imx1_gpt_setup_tctl(struct imx_timer *imxtm)
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index c90a69c7b5fa..b0fcbaac58b0 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -123,13 +123,6 @@ static struct clock_event_device integrator_clockevent = {
.rating = 300,
};
-static struct irqaction integrator_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = integrator_timer_interrupt,
- .dev_id = &integrator_clockevent,
-};
-
static int integrator_clockevent_init(unsigned long inrate,
void __iomem *base, int irq)
{
@@ -149,7 +142,9 @@ static int integrator_clockevent_init(unsigned long inrate,
timer_reload = rate / HZ;
writel(ctrl, clkevt_base + TIMER_CTRL);
- ret = setup_irq(irq, &integrator_timer_irq);
+ ret = request_irq(irq, integrator_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "timer",
+ &integrator_clockevent);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-meson6.c b/drivers/clocksource/timer-meson6.c
index 9e8b467c71da..99f5510a2b56 100644
--- a/drivers/clocksource/timer-meson6.c
+++ b/drivers/clocksource/timer-meson6.c
@@ -150,13 +150,6 @@ static irqreturn_t meson6_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction meson6_timer_irq = {
- .name = "meson6_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = meson6_timer_interrupt,
- .dev_id = &meson6_clockevent,
-};
-
static int __init meson6_timer_init(struct device_node *node)
{
u32 val;
@@ -194,7 +187,9 @@ static int __init meson6_timer_init(struct device_node *node)
/* Stop the timer A */
meson6_clkevt_time_stop();
- ret = setup_irq(irq, &meson6_timer_irq);
+ ret = request_irq(irq, meson6_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "meson6_timer",
+ &meson6_clockevent);
if (ret) {
pr_warn("failed to setup irq %d\n", irq);
return ret;
diff --git a/drivers/clocksource/timer-orion.c b/drivers/clocksource/timer-orion.c
index 7d487107e3cd..d01ff4181867 100644
--- a/drivers/clocksource/timer-orion.c
+++ b/drivers/clocksource/timer-orion.c
@@ -114,12 +114,6 @@ static irqreturn_t orion_clkevt_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction orion_clkevt_irq = {
- .name = "orion_event",
- .flags = IRQF_TIMER,
- .handler = orion_clkevt_irq_handler,
-};
-
static int __init orion_timer_init(struct device_node *np)
{
unsigned long rate;
@@ -172,7 +166,8 @@ static int __init orion_timer_init(struct device_node *np)
sched_clock_register(orion_read_sched_clock, 32, rate);
/* setup timer1 as clockevent timer */
- ret = setup_irq(irq, &orion_clkevt_irq);
+ ret = request_irq(irq, orion_clkevt_irq_handler, IRQF_TIMER,
+ "orion_event", NULL);
if (ret) {
pr_err("%pOFn: unable to setup irq\n", np);
return ret;
diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c
index d4a9dcf5fba2..c5d469342a9d 100644
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -165,14 +165,6 @@ static struct clocksource sirfsoc_clocksource = {
.resume = sirfsoc_clocksource_resume,
};
-static struct irqaction sirfsoc_timer_irq = {
- .name = "sirfsoc_timer0",
- .flags = IRQF_TIMER,
- .irq = 0,
- .handler = sirfsoc_timer_interrupt,
- .dev_id = &sirfsoc_clockevent,
-};
-
/* Overwrite weak default sched_clock with more precise one */
static u64 notrace sirfsoc_read_sched_clock(void)
{
@@ -190,6 +182,7 @@ static void __init sirfsoc_clockevent_init(void)
static int __init sirfsoc_prima2_timer_init(struct device_node *np)
{
unsigned long rate;
+ unsigned int irq;
struct clk *clk;
int ret;
@@ -218,7 +211,7 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
return -ENXIO;
}
- sirfsoc_timer_irq.irq = irq_of_parse_and_map(np, 0);
+ irq = irq_of_parse_and_map(np, 0);
writel_relaxed(rate / PRIMA2_CLOCK_FREQ / 2 - 1,
sirfsoc_timer_base + SIRFSOC_TIMER_DIV);
@@ -234,7 +227,8 @@ static int __init sirfsoc_prima2_timer_init(struct device_node *np)
sched_clock_register(sirfsoc_read_sched_clock, 64, PRIMA2_CLOCK_FREQ);
- ret = setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq);
+ ret = request_irq(irq, sirfsoc_timer_interrupt, IRQF_TIMER,
+ "sirfsoc_timer0", &sirfsoc_clockevent);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-pxa.c b/drivers/clocksource/timer-pxa.c
index 913a5d354a1f..7ad0e5adb2ff 100644
--- a/drivers/clocksource/timer-pxa.c
+++ b/drivers/clocksource/timer-pxa.c
@@ -143,13 +143,6 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
.resume = pxa_timer_resume,
};
-static struct irqaction pxa_ost0_irq = {
- .name = "ost0",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pxa_ost0_interrupt,
- .dev_id = &ckevt_pxa_osmr0,
-};
-
static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
{
int ret;
@@ -161,7 +154,8 @@ static int __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
ckevt_pxa_osmr0.cpumask = cpumask_of(0);
- ret = setup_irq(irq, &pxa_ost0_irq);
+ ret = request_irq(irq, pxa_ost0_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "ost0", &ckevt_pxa_osmr0);
if (ret) {
pr_err("Failed to setup irq\n");
return ret;
diff --git a/drivers/clocksource/timer-sp804.c b/drivers/clocksource/timer-sp804.c
index 9c841980eed1..5cd0abf9b396 100644
--- a/drivers/clocksource/timer-sp804.c
+++ b/drivers/clocksource/timer-sp804.c
@@ -168,13 +168,6 @@ static struct clock_event_device sp804_clockevent = {
.rating = 300,
};
-static struct irqaction sp804_timer_irq = {
- .name = "timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = sp804_timer_interrupt,
- .dev_id = &sp804_clockevent,
-};
-
int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct clk *clk, const char *name)
{
struct clock_event_device *evt = &sp804_clockevent;
@@ -200,7 +193,9 @@ int __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct
writel(0, base + TIMER_CTRL);
- setup_irq(irq, &sp804_timer_irq);
+ if (request_irq(irq, sp804_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "timer", &sp804_clockevent))
+ pr_err("%s: request_irq() failed\n", "timer");
clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
return 0;
diff --git a/drivers/clocksource/timer-u300.c b/drivers/clocksource/timer-u300.c
index 32adc3057dda..37cba8dfd45f 100644
--- a/drivers/clocksource/timer-u300.c
+++ b/drivers/clocksource/timer-u300.c
@@ -330,12 +330,6 @@ static irqreturn_t u300_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction u300_timer_irq = {
- .name = "U300 Timer Tick",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = u300_timer_interrupt,
-};
-
/*
* Override the global weak sched_clock symbol with this
* local implementation which uses the clocksource to get some
@@ -420,7 +414,8 @@ static int __init u300_timer_init_of(struct device_node *np)
u300_timer_base + U300_TIMER_APP_RGPT1);
/* Set up the IRQ handler */
- ret = setup_irq(irq, &u300_timer_irq);
+ ret = request_irq(irq, u300_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "U300 Timer Tick", NULL);
if (ret)
return ret;
diff --git a/drivers/clocksource/timer-vf-pit.c b/drivers/clocksource/timer-vf-pit.c
index fef0bb4e0c8c..7ad4a8b008c2 100644
--- a/drivers/clocksource/timer-vf-pit.c
+++ b/drivers/clocksource/timer-vf-pit.c
@@ -123,19 +123,13 @@ static struct clock_event_device clockevent_pit = {
.rating = 300,
};
-static struct irqaction pit_timer_irq = {
- .name = "VF pit timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pit_timer_interrupt,
- .dev_id = &clockevent_pit,
-};
-
static int __init pit_clockevent_init(unsigned long rate, int irq)
{
__raw_writel(0, clkevt_base + PITTCTRL);
__raw_writel(PITTFLG_TIF, clkevt_base + PITTFLG);
- BUG_ON(setup_irq(irq, &pit_timer_irq));
+ BUG_ON(request_irq(irq, pit_timer_interrupt, IRQF_TIMER | IRQF_IRQPOLL,
+ "VF pit timer", &clockevent_pit);
clockevent_pit.cpumask = cpumask_of(0);
clockevent_pit.irq = irq;
diff --git a/drivers/clocksource/timer-vt8500.c b/drivers/clocksource/timer-vt8500.c
index bb424bcefbb3..a469b1b5f972 100644
--- a/drivers/clocksource/timer-vt8500.c
+++ b/drivers/clocksource/timer-vt8500.c
@@ -101,13 +101,6 @@ static irqreturn_t vt8500_timer_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static struct irqaction irq = {
- .name = "vt8500_timer",
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- .handler = vt8500_timer_interrupt,
- .dev_id = &clockevent,
-};
-
static int __init vt8500_timer_init(struct device_node *np)
{
int timer_irq, ret;
@@ -139,7 +132,9 @@ static int __init vt8500_timer_init(struct device_node *np)
clockevent.cpumask = cpumask_of(0);
- ret = setup_irq(timer_irq, &irq);
+ ret = request_irq(timer_irq, vt8500_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL, "vt8500_timer",
+ &clockevent);
if (ret) {
pr_err("%s: setup_irq failed for %s\n", __func__,
clockevent.name);
diff --git a/drivers/clocksource/timer-zevio.c b/drivers/clocksource/timer-zevio.c
index c0041561f1be..ecaa3568841c 100644
--- a/drivers/clocksource/timer-zevio.c
+++ b/drivers/clocksource/timer-zevio.c
@@ -53,7 +53,6 @@ struct zevio_timer {
struct clk *clk;
struct clock_event_device clkevt;
- struct irqaction clkevt_irq;
char clocksource_name[64];
char clockevent_name[64];
@@ -172,12 +171,12 @@ static int __init zevio_timer_add(struct device_node *node)
/* Interrupt to occur when timer value matches 0 */
writel(0, timer->base + IO_MATCH(TIMER_MATCH));
- timer->clkevt_irq.name = timer->clockevent_name;
- timer->clkevt_irq.handler = zevio_timer_interrupt;
- timer->clkevt_irq.dev_id = timer;
- timer->clkevt_irq.flags = IRQF_TIMER | IRQF_IRQPOLL;
-
- setup_irq(irqnr, &timer->clkevt_irq);
+ if (request_irq(irqnr, zevio_timer_interrupt,
+ IRQF_TIMER | IRQF_IRQPOLL,
+ timer->clockevent_name, timer)) {
+ pr_err("%s: request_irq() failed\n",
+ timer->clockevent_name);
+ }
clockevents_config_and_register(&timer->clkevt,
clk_get_rate(timer->clk), 0x0001, 0xffff);
diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h
index 14f072edbca5..82ebf9223948 100644
--- a/include/linux/dw_apb_timer.h
+++ b/include/linux/dw_apb_timer.h
@@ -25,7 +25,6 @@ struct dw_apb_timer {
struct dw_apb_clock_event_device {
struct clock_event_device ced;
struct dw_apb_timer timer;
- struct irqaction irqaction;
void (*eoi)(struct dw_apb_timer *);
};
base-commit: bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9
prerequisite-patch-id: 72a393507740cabbf554fde9aac2c39c8e3d7b02
prerequisite-patch-id: befe7da3dbb674083ef7b2d310771571c3f70507
prerequisite-patch-id: 9b1f3828296d0850e25c8746196fcc164e091459
prerequisite-patch-id: f9fd9769c0a37d2e4d53cdc9d059c6af4ef2309f
prerequisite-patch-id: 5b93082f3c7c7f56eba074edbdca2927e3d6d544
prerequisite-patch-id: 9ebd7e9eab195385baf2cd5d53f08f63f2d3b9a9
prerequisite-patch-id: 66559f9c50a234a6579126d62995e62e6d4b6786
prerequisite-patch-id: 59347dcebbb06f9cf643e45e1ab350d4c7c2cbd7
prerequisite-patch-id: 1c5e8a6ee2fe7548505148f3256a62b56228b415
prerequisite-patch-id: bb9b630b876744bddb73935540c3048e46e183f6
prerequisite-patch-id: c19f6bf305102d349a69bd0b532f971f2a41ce46
prerequisite-patch-id: 3b1405c8b6bd3b254b902121029be0b2c786063a
prerequisite-patch-id: 24e9ae8ec527032b8e064bb8be9af852e11b6f38
prerequisite-patch-id: 8de445a59c169467d6e08c2062541ff1f066ad86
prerequisite-patch-id: 8d77bd274e8eee1011ae921c5f19a6f416d6f9a3
--
2.25.1
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 78+ messages in thread* Re: [PATCH v3 16/18] clocksource: Replace setup_irq() by request_irq()
2020-02-27 10:59 ` afzal mohammed
(?)
@ 2020-02-27 11:18 ` Daniel Lezcano
-1 siblings, 0 replies; 78+ messages in thread
From: Daniel Lezcano @ 2020-02-27 11:18 UTC (permalink / raw)
To: afzal mohammed, linux-kernel, linux-arm-kernel,
linux-samsung-soc, linux-amlogic
Cc: Thomas Gleixner, Florian Fainelli, Ray Jui, Scott Branden,
bcm-kernel-feedback-list, Nicolas Saenz Julienne, Kukjin Kim,
Krzysztof Kozlowski, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Barry Song, Uwe Kleine-König, Kevin Hilman, Linus Walleij,
Tony Prisk, Allison Randal, Enrico Weigelt, Greg Kroah-Hartman,
Kate Stewart
On 27/02/2020 11:59, afzal mohammed wrote:
> request_irq() is preferred over setup_irq(). The early boot setup_irq()
> invocations happen either via 'init_IRQ()' or 'time_init()', while
> memory allocators are ready by 'mm_init()'.
>
> Per tglx[1], setup_irq() existed in olden days when allocators were not
> ready by the time early interrupts were initialized.
>
> Hence replace setup_irq() by request_irq().
>
> Seldom remove_irq() usage has been observed coupled with setup_irq(),
> wherever that has been found, it too has been replaced by free_irq().
>
> A build error that was reported by kbuild test robot <lkp@intel.com>
> in the previous version of the patch also has been fixed.
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> ---
>
> Hi,
>
> There was a build error in v2, which was reported by kbuild test
> robot and it was suggested to add Reported-by to the patch. But since
> the change is being fixed up w/ original patch, if i add Reported-by,
> it will give a feeling as though robot has reported the necessity of
> this patch as whole, so i have credited test robot in a different way
> in the commit message. If the proper way is to add Reported-by tag
> itself or some other way, let me know, i will change accordingly.
>
> Hi Daniel, Linus,
>
> i have removed your Acked-by's as now patch has been modified (though
> only slightly the file timer-prima2.c) to fix the build error.
I'm fine with the changes, I'll apply this patch for timers/drivers/next
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v3 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-27 11:18 ` Daniel Lezcano
0 siblings, 0 replies; 78+ messages in thread
From: Daniel Lezcano @ 2020-02-27 11:18 UTC (permalink / raw)
To: afzal mohammed, linux-kernel, linux-arm-kernel,
linux-samsung-soc, linux-amlogic
Cc: Kate Stewart, Linus Walleij, Shawn Guo, Fabio Estevam,
Florian Fainelli, Kevin Hilman, Krzysztof Kozlowski, Kukjin Kim,
bcm-kernel-feedback-list, NXP Linux Team, Uwe Kleine-König,
Ray Jui, Sascha Hauer, Thomas Gleixner, Allison Randal,
Barry Song, Scott Branden, Greg Kroah-Hartman, Tony Prisk,
Pengutronix Kernel Team, Enrico Weigelt, Nicolas Saenz Julienne
On 27/02/2020 11:59, afzal mohammed wrote:
> request_irq() is preferred over setup_irq(). The early boot setup_irq()
> invocations happen either via 'init_IRQ()' or 'time_init()', while
> memory allocators are ready by 'mm_init()'.
>
> Per tglx[1], setup_irq() existed in olden days when allocators were not
> ready by the time early interrupts were initialized.
>
> Hence replace setup_irq() by request_irq().
>
> Seldom remove_irq() usage has been observed coupled with setup_irq(),
> wherever that has been found, it too has been replaced by free_irq().
>
> A build error that was reported by kbuild test robot <lkp@intel.com>
> in the previous version of the patch also has been fixed.
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> ---
>
> Hi,
>
> There was a build error in v2, which was reported by kbuild test
> robot and it was suggested to add Reported-by to the patch. But since
> the change is being fixed up w/ original patch, if i add Reported-by,
> it will give a feeling as though robot has reported the necessity of
> this patch as whole, so i have credited test robot in a different way
> in the commit message. If the proper way is to add Reported-by tag
> itself or some other way, let me know, i will change accordingly.
>
> Hi Daniel, Linus,
>
> i have removed your Acked-by's as now patch has been modified (though
> only slightly the file timer-prima2.c) to fix the build error.
I'm fine with the changes, I'll apply this patch for timers/drivers/next
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog
_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v3 16/18] clocksource: Replace setup_irq() by request_irq()
@ 2020-02-27 11:18 ` Daniel Lezcano
0 siblings, 0 replies; 78+ messages in thread
From: Daniel Lezcano @ 2020-02-27 11:18 UTC (permalink / raw)
To: afzal mohammed, linux-kernel, linux-arm-kernel,
linux-samsung-soc, linux-amlogic
Cc: Kate Stewart, Linus Walleij, Shawn Guo, Fabio Estevam,
Florian Fainelli, Kevin Hilman, Krzysztof Kozlowski, Kukjin Kim,
bcm-kernel-feedback-list, NXP Linux Team, Uwe Kleine-König,
Ray Jui, Sascha Hauer, Thomas Gleixner, Allison Randal,
Barry Song, Scott Branden, Greg Kroah-Hartman, Tony Prisk,
Pengutronix Kernel Team, Enrico Weigelt, Nicolas Saenz Julienne
On 27/02/2020 11:59, afzal mohammed wrote:
> request_irq() is preferred over setup_irq(). The early boot setup_irq()
> invocations happen either via 'init_IRQ()' or 'time_init()', while
> memory allocators are ready by 'mm_init()'.
>
> Per tglx[1], setup_irq() existed in olden days when allocators were not
> ready by the time early interrupts were initialized.
>
> Hence replace setup_irq() by request_irq().
>
> Seldom remove_irq() usage has been observed coupled with setup_irq(),
> wherever that has been found, it too has been replaced by free_irq().
>
> A build error that was reported by kbuild test robot <lkp@intel.com>
> in the previous version of the patch also has been fixed.
>
> [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
>
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> ---
>
> Hi,
>
> There was a build error in v2, which was reported by kbuild test
> robot and it was suggested to add Reported-by to the patch. But since
> the change is being fixed up w/ original patch, if i add Reported-by,
> it will give a feeling as though robot has reported the necessity of
> this patch as whole, so i have credited test robot in a different way
> in the commit message. If the proper way is to add Reported-by tag
> itself or some other way, let me know, i will change accordingly.
>
> Hi Daniel, Linus,
>
> i have removed your Acked-by's as now patch has been modified (though
> only slightly the file timer-prima2.c) to fix the build error.
I'm fine with the changes, I'll apply this patch for timers/drivers/next
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 78+ messages in thread
* [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
2020-02-27 11:18 ` Daniel Lezcano
(?)
@ 2020-03-12 6:48 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-03-12 6:48 UTC (permalink / raw)
To: daniel.lezcano
Cc: afzal.mohd.ma, allison, baohua, bcm-kernel-feedback-list,
f.fainelli, festevam, gregkh, info, kernel, kgene, khilman, krzk,
kstewart, linus.walleij, linux-amlogic, linux-arm-kernel,
linux-imx, linux-kernel, linux-samsung-soc, linux,
nsaenzjulienne, rjui, s.hauer, sbranden, shawnguo, tglx,
u.kleine-koenig
Recently all usages of setup_irq() was replaced by request_irq().
request_irq() does a few sanity checks that were not done in
setup_irq(), if they fail irq registration will fail. One of the check
is to ensure that non-NULL dev_id is passed in the case of shared irq.
Fix it by passing non-NULL dev_id while registering the shared irq.
Fixes: cc2550b421aa ("clocksource: Replace setup_irq() by request_irq()")
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
Hi Daniel,
i have assumed that you would not rebase your drivers/next tree & put the
SHA-id in Fixes tag.
Regards
afzal
drivers/clocksource/timer-cs5535.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 51ea0509fb25..d47acfe848ae 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -133,6 +133,7 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
static int __init cs5535_mfgpt_init(void)
{
+ unsigned long flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED;
struct cs5535_mfgpt_timer *timer;
int ret;
uint16_t val;
@@ -152,9 +153,7 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = request_irq(timer_irq, mfgpt_tick,
- IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- DRV_NAME, NULL);
+ ret = request_irq(timer_irq, mfgpt_tick, flags, DRV_NAME, timer);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
--
2.18.0
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
@ 2020-03-12 6:48 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-03-12 6:48 UTC (permalink / raw)
To: daniel.lezcano
Cc: kstewart, linus.walleij, shawnguo, festevam, afzal.mohd.ma,
f.fainelli, khilman, krzk, kgene, bcm-kernel-feedback-list,
linux-imx, u.kleine-koenig, rjui, s.hauer, linux-samsung-soc,
linux-amlogic, tglx, allison, linux-arm-kernel, baohua, sbranden,
gregkh, linux-kernel, linux, kernel, info, nsaenzjulienne
Recently all usages of setup_irq() was replaced by request_irq().
request_irq() does a few sanity checks that were not done in
setup_irq(), if they fail irq registration will fail. One of the check
is to ensure that non-NULL dev_id is passed in the case of shared irq.
Fix it by passing non-NULL dev_id while registering the shared irq.
Fixes: cc2550b421aa ("clocksource: Replace setup_irq() by request_irq()")
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
Hi Daniel,
i have assumed that you would not rebase your drivers/next tree & put the
SHA-id in Fixes tag.
Regards
afzal
drivers/clocksource/timer-cs5535.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 51ea0509fb25..d47acfe848ae 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -133,6 +133,7 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
static int __init cs5535_mfgpt_init(void)
{
+ unsigned long flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED;
struct cs5535_mfgpt_timer *timer;
int ret;
uint16_t val;
@@ -152,9 +153,7 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = request_irq(timer_irq, mfgpt_tick,
- IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- DRV_NAME, NULL);
+ ret = request_irq(timer_irq, mfgpt_tick, flags, DRV_NAME, timer);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
--
2.18.0
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linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
@ 2020-03-12 6:48 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-03-12 6:48 UTC (permalink / raw)
To: daniel.lezcano
Cc: kstewart, linus.walleij, shawnguo, festevam, afzal.mohd.ma,
f.fainelli, khilman, krzk, kgene, bcm-kernel-feedback-list,
linux-imx, u.kleine-koenig, rjui, s.hauer, linux-samsung-soc,
linux-amlogic, tglx, allison, linux-arm-kernel, baohua, sbranden,
gregkh, linux-kernel, linux, kernel, info, nsaenzjulienne
Recently all usages of setup_irq() was replaced by request_irq().
request_irq() does a few sanity checks that were not done in
setup_irq(), if they fail irq registration will fail. One of the check
is to ensure that non-NULL dev_id is passed in the case of shared irq.
Fix it by passing non-NULL dev_id while registering the shared irq.
Fixes: cc2550b421aa ("clocksource: Replace setup_irq() by request_irq()")
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
Hi Daniel,
i have assumed that you would not rebase your drivers/next tree & put the
SHA-id in Fixes tag.
Regards
afzal
drivers/clocksource/timer-cs5535.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 51ea0509fb25..d47acfe848ae 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -133,6 +133,7 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
static int __init cs5535_mfgpt_init(void)
{
+ unsigned long flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED;
struct cs5535_mfgpt_timer *timer;
int ret;
uint16_t val;
@@ -152,9 +153,7 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = request_irq(timer_irq, mfgpt_tick,
- IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- DRV_NAME, NULL);
+ ret = request_irq(timer_irq, mfgpt_tick, flags, DRV_NAME, timer);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
--
2.18.0
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^ permalink raw reply related [flat|nested] 78+ messages in thread* Re: [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
2020-03-12 6:48 ` afzal mohammed
(?)
@ 2020-03-12 7:10 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-03-12 7:10 UTC (permalink / raw)
To: daniel.lezcano
Cc: allison, baohua, bcm-kernel-feedback-list, f.fainelli, festevam,
gregkh, info, kernel, kgene, khilman, krzk, kstewart,
linus.walleij, linux-amlogic, linux-arm-kernel, linux-imx,
linux-kernel, linux-samsung-soc, linux, nsaenzjulienne, rjui,
s.hauer, sbranden, shawnguo, tglx, u.kleine-koenig
subject was not supposed to have version info, happened by mistake, this
is an incremental patch on top of v3 that has been applied to the
timers/drivers/next branch.
Regards
afzal
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
@ 2020-03-12 7:10 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-03-12 7:10 UTC (permalink / raw)
To: daniel.lezcano
Cc: kstewart, linus.walleij, shawnguo, festevam, f.fainelli, khilman,
krzk, kgene, bcm-kernel-feedback-list, allison, u.kleine-koenig,
linux-imx, rjui, s.hauer, linux-samsung-soc, linux-amlogic, tglx,
linux-arm-kernel, baohua, sbranden, gregkh, linux-kernel, linux,
kernel, info, nsaenzjulienne
subject was not supposed to have version info, happened by mistake, this
is an incremental patch on top of v3 that has been applied to the
timers/drivers/next branch.
Regards
afzal
_______________________________________________
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linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
@ 2020-03-12 7:10 ` afzal mohammed
0 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-03-12 7:10 UTC (permalink / raw)
To: daniel.lezcano
Cc: kstewart, linus.walleij, shawnguo, festevam, f.fainelli, khilman,
krzk, kgene, bcm-kernel-feedback-list, allison, u.kleine-koenig,
linux-imx, rjui, s.hauer, linux-samsung-soc, linux-amlogic, tglx,
linux-arm-kernel, baohua, sbranden, gregkh, linux-kernel, linux,
kernel, info, nsaenzjulienne
subject was not supposed to have version info, happened by mistake, this
is an incremental patch on top of v3 that has been applied to the
timers/drivers/next branch.
Regards
afzal
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 78+ messages in thread
* Re: [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
2020-03-12 6:48 ` afzal mohammed
(?)
@ 2020-03-12 18:23 ` Daniel Lezcano
-1 siblings, 0 replies; 78+ messages in thread
From: Daniel Lezcano @ 2020-03-12 18:23 UTC (permalink / raw)
To: afzal mohammed
Cc: allison, baohua, bcm-kernel-feedback-list, f.fainelli, festevam,
gregkh, info, kernel, kgene, khilman, krzk, kstewart,
linus.walleij, linux-amlogic, linux-arm-kernel, linux-imx,
linux-kernel, linux-samsung-soc, linux, nsaenzjulienne, rjui,
s.hauer, sbranden, shawnguo, tglx, u.kleine-koenig
On 12/03/2020 07:48, afzal mohammed wrote:
> Recently all usages of setup_irq() was replaced by request_irq().
> request_irq() does a few sanity checks that were not done in
> setup_irq(), if they fail irq registration will fail. One of the check
> is to ensure that non-NULL dev_id is passed in the case of shared irq.
>
> Fix it by passing non-NULL dev_id while registering the shared irq.
>
> Fixes: cc2550b421aa ("clocksource: Replace setup_irq() by request_irq()")
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> ---
>
> Hi Daniel,
>
> i have assumed that you would not rebase your drivers/next tree & put the
> SHA-id in Fixes tag.
Applied, thanks
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
@ 2020-03-12 18:23 ` Daniel Lezcano
0 siblings, 0 replies; 78+ messages in thread
From: Daniel Lezcano @ 2020-03-12 18:23 UTC (permalink / raw)
To: afzal mohammed
Cc: kstewart, linus.walleij, shawnguo, festevam, f.fainelli, khilman,
krzk, kgene, bcm-kernel-feedback-list, allison, u.kleine-koenig,
linux-imx, rjui, s.hauer, linux-samsung-soc, linux-amlogic, tglx,
linux-arm-kernel, baohua, sbranden, gregkh, linux-kernel, linux,
kernel, info, nsaenzjulienne
On 12/03/2020 07:48, afzal mohammed wrote:
> Recently all usages of setup_irq() was replaced by request_irq().
> request_irq() does a few sanity checks that were not done in
> setup_irq(), if they fail irq registration will fail. One of the check
> is to ensure that non-NULL dev_id is passed in the case of shared irq.
>
> Fix it by passing non-NULL dev_id while registering the shared irq.
>
> Fixes: cc2550b421aa ("clocksource: Replace setup_irq() by request_irq()")
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> ---
>
> Hi Daniel,
>
> i have assumed that you would not rebase your drivers/next tree & put the
> SHA-id in Fixes tag.
Applied, thanks
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog
_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-amlogic
^ permalink raw reply [flat|nested] 78+ messages in thread* Re: [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
@ 2020-03-12 18:23 ` Daniel Lezcano
0 siblings, 0 replies; 78+ messages in thread
From: Daniel Lezcano @ 2020-03-12 18:23 UTC (permalink / raw)
To: afzal mohammed
Cc: kstewart, linus.walleij, shawnguo, festevam, f.fainelli, khilman,
krzk, kgene, bcm-kernel-feedback-list, allison, u.kleine-koenig,
linux-imx, rjui, s.hauer, linux-samsung-soc, linux-amlogic, tglx,
linux-arm-kernel, baohua, sbranden, gregkh, linux-kernel, linux,
kernel, info, nsaenzjulienne
On 12/03/2020 07:48, afzal mohammed wrote:
> Recently all usages of setup_irq() was replaced by request_irq().
> request_irq() does a few sanity checks that were not done in
> setup_irq(), if they fail irq registration will fail. One of the check
> is to ensure that non-NULL dev_id is passed in the case of shared irq.
>
> Fix it by passing non-NULL dev_id while registering the shared irq.
>
> Fixes: cc2550b421aa ("clocksource: Replace setup_irq() by request_irq()")
> Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
> ---
>
> Hi Daniel,
>
> i have assumed that you would not rebase your drivers/next tree & put the
> SHA-id in Fixes tag.
Applied, thanks
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog
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^ permalink raw reply [flat|nested] 78+ messages in thread
* [tip: timers/core] clocksource/drivers/timer-cs5535: Request irq with non-NULL dev_id
2020-03-12 6:48 ` afzal mohammed
` (3 preceding siblings ...)
(?)
@ 2020-03-19 8:47 ` tip-bot2 for afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: tip-bot2 for afzal mohammed @ 2020-03-19 8:47 UTC (permalink / raw)
To: linux-tip-commits; +Cc: afzal mohammed, Daniel Lezcano, x86, LKML
The following commit has been merged into the timers/core branch of tip:
Commit-ID: 470cf1c28d2f601ea666a96d676c10b09b2321ab
Gitweb: https://git.kernel.org/tip/470cf1c28d2f601ea666a96d676c10b09b2321ab
Author: afzal mohammed <afzal.mohd.ma@gmail.com>
AuthorDate: Thu, 12 Mar 2020 12:18:17 +05:30
Committer: Daniel Lezcano <daniel.lezcano@linaro.org>
CommitterDate: Thu, 12 Mar 2020 19:23:06 +01:00
clocksource/drivers/timer-cs5535: Request irq with non-NULL dev_id
Recently all usages of setup_irq() was replaced by request_irq().
request_irq() does a few sanity checks that were not done in
setup_irq(), if they fail irq registration will fail. One of the check
is to ensure that non-NULL dev_id is passed in the case of shared irq.
Fix it by passing non-NULL dev_id while registering the shared irq.
Fixes: cc2550b421aa ("clocksource: Replace setup_irq() by request_irq()")
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200312064817.19000-1-afzal.mohd.ma@gmail.com
---
drivers/clocksource/timer-cs5535.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/clocksource/timer-cs5535.c b/drivers/clocksource/timer-cs5535.c
index 51ea050..d47acfe 100644
--- a/drivers/clocksource/timer-cs5535.c
+++ b/drivers/clocksource/timer-cs5535.c
@@ -133,6 +133,7 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
static int __init cs5535_mfgpt_init(void)
{
+ unsigned long flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED;
struct cs5535_mfgpt_timer *timer;
int ret;
uint16_t val;
@@ -152,9 +153,7 @@ static int __init cs5535_mfgpt_init(void)
}
/* And register it with the kernel */
- ret = request_irq(timer_irq, mfgpt_tick,
- IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
- DRV_NAME, NULL);
+ ret = request_irq(timer_irq, mfgpt_tick, flags, DRV_NAME, timer);
if (ret) {
printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
goto err_irq;
^ permalink raw reply related [flat|nested] 78+ messages in thread* Re: [PATCH v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
2020-03-12 6:48 ` afzal mohammed
` (4 preceding siblings ...)
(?)
@ 2020-04-16 16:08 ` patchwork-bot+linux-amlogic
-1 siblings, 0 replies; 78+ messages in thread
From: patchwork-bot+linux-amlogic @ 2020-04-16 16:08 UTC (permalink / raw)
To: afzal mohammed; +Cc: linux-amlogic, khilman
Hello:
This patch was applied to khilman/linux-amlogic.git (refs/heads/for-next).
On Thu, 12 Mar 2020 12:18:17 +0530 you wrote:
> Recently all usages of setup_irq() was replaced by request_irq().
> request_irq() does a few sanity checks that were not done in
> setup_irq(), if they fail irq registration will fail. One of the check
> is to ensure that non-NULL dev_id is passed in the case of shared irq.
>
> Fix it by passing non-NULL dev_id while registering the shared irq.
>
> [...]
Here is a summary with links:
- [v4] clocksource/drivers/timer-cs5535: request irq with non-NULL dev_id
https://git.kernel.org/khilman/linux-amlogic/c/470cf1c28d2f601ea666a96d676c10b09b2321ab
You are awesome, thank you!
--
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^ permalink raw reply [flat|nested] 78+ messages in thread
* [PATCH v2 17/18] irqchip: Replace setup_irq() by request_irq()
2020-02-24 0:47 ` afzal mohammed
` (17 preceding siblings ...)
(?)
@ 2020-02-24 0:53 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:53 UTC (permalink / raw)
To: linux-kernel; +Cc: Thomas Gleixner, Jason Cooper, Marc Zyngier, Paul Cercueil
request_irq() is preferred over setup_irq(). The early boot setup_irq()
invocations happen either via 'init_IRQ()' or 'time_init()', while
memory allocators are ready by 'mm_init()'.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
Seldom remove_irq() usage has been observed coupled with setup_irq(),
wherever that has been found, it too has been replaced by free_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
drivers/irqchip/irq-i8259.c | 9 +++------
drivers/irqchip/irq-ingenic.c | 11 +++++------
2 files changed, 8 insertions(+), 12 deletions(-)
diff --git a/drivers/irqchip/irq-i8259.c b/drivers/irqchip/irq-i8259.c
index d000870d9b6b..23664fa9900a 100644
--- a/drivers/irqchip/irq-i8259.c
+++ b/drivers/irqchip/irq-i8259.c
@@ -271,11 +271,6 @@ static void init_8259A(int auto_eoi)
/*
* IRQ2 is cascade interrupt to second interrupt controller
*/
-static struct irqaction irq2 = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
static struct resource pic1_io_resource = {
.name = "pic1",
@@ -323,7 +318,9 @@ struct irq_domain * __init __init_i8259_irqs(struct device_node *node)
if (!domain)
panic("Failed to add i8259 IRQ domain");
- setup_irq(I8259A_IRQ_BASE + PIC_CASCADE_IR, &irq2);
+ if (request_irq(I8259A_IRQ_BASE + PIC_CASCADE_IR, no_action,
+ IRQF_NO_THREAD, "cascade", NULL))
+ pr_err("%s: request_irq() failed\n", "cascade");
register_syscore_ops(&i8259_syscore_ops);
return domain;
}
diff --git a/drivers/irqchip/irq-ingenic.c b/drivers/irqchip/irq-ingenic.c
index c5589ee0dfb3..482b35b273d9 100644
--- a/drivers/irqchip/irq-ingenic.c
+++ b/drivers/irqchip/irq-ingenic.c
@@ -58,11 +58,6 @@ static irqreturn_t intc_cascade(int irq, void *data)
return IRQ_HANDLED;
}
-static struct irqaction intc_cascade_action = {
- .handler = intc_cascade,
- .name = "SoC intc cascade interrupt",
-};
-
static int __init ingenic_intc_of_init(struct device_node *node,
unsigned num_chips)
{
@@ -130,7 +125,11 @@ static int __init ingenic_intc_of_init(struct device_node *node,
irq_reg_writel(gc, IRQ_MSK(32), JZ_REG_INTC_SET_MASK);
}
- setup_irq(parent_irq, &intc_cascade_action);
+ if (request_irq(parent_irq, intc_cascade, 0,
+ "SoC intc cascade interrupt", NULL)) {
+ pr_err("%s: request_irq() failed\n",
+ "SoC intc cascade interrupt");
+ }
return 0;
out_domain_remove:
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread* [PATCH v2 18/18] genirq: Remove setup_irq() and remove_irq()
2020-02-24 0:47 ` afzal mohammed
` (18 preceding siblings ...)
(?)
@ 2020-02-24 0:53 ` afzal mohammed
-1 siblings, 0 replies; 78+ messages in thread
From: afzal mohammed @ 2020-02-24 0:53 UTC (permalink / raw)
To: linux-kernel
Cc: Thomas Gleixner, Marc Zyngier, Peter Xu, Brian Masney,
Maulik Shah, Linus Walleij, Lokesh Vutla
Now that all the users of setup_irq() & remove_irq() has been replaced
by request_irq() & free_irq() respectively, delete them.
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
v2:
* Replace pr_err("request_irq() on %s failed" by
pr_err("%s: request_irq() failed"
* Commit message massage
include/linux/irq.h | 2 --
kernel/irq/manage.c | 44 --------------------------------------------
2 files changed, 46 deletions(-)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 3ed5a055b5f4..29f5bad87eb3 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -560,8 +560,6 @@ enum {
#define IRQ_DEFAULT_INIT_FLAGS ARCH_IRQ_INIT_FLAGS
struct irqaction;
-extern int setup_irq(unsigned int irq, struct irqaction *new);
-extern void remove_irq(unsigned int irq, struct irqaction *act);
extern int setup_percpu_irq(unsigned int irq, struct irqaction *new);
extern void remove_percpu_irq(unsigned int irq, struct irqaction *act);
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 3089a60ea8f9..aa03b64605d3 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1697,34 +1697,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
return ret;
}
-/**
- * setup_irq - setup an interrupt
- * @irq: Interrupt line to setup
- * @act: irqaction for the interrupt
- *
- * Used to statically setup interrupts in the early boot process.
- */
-int setup_irq(unsigned int irq, struct irqaction *act)
-{
- int retval;
- struct irq_desc *desc = irq_to_desc(irq);
-
- if (!desc || WARN_ON(irq_settings_is_per_cpu_devid(desc)))
- return -EINVAL;
-
- retval = irq_chip_pm_get(&desc->irq_data);
- if (retval < 0)
- return retval;
-
- retval = __setup_irq(irq, desc, act);
-
- if (retval)
- irq_chip_pm_put(&desc->irq_data);
-
- return retval;
-}
-EXPORT_SYMBOL_GPL(setup_irq);
-
/*
* Internal function to unregister an irqaction - used to free
* regular and special interrupts that are part of the architecture.
@@ -1865,22 +1837,6 @@ static struct irqaction *__free_irq(struct irq_desc *desc, void *dev_id)
return action;
}
-/**
- * remove_irq - free an interrupt
- * @irq: Interrupt line to free
- * @act: irqaction for the interrupt
- *
- * Used to remove interrupts statically setup by the early boot process.
- */
-void remove_irq(unsigned int irq, struct irqaction *act)
-{
- struct irq_desc *desc = irq_to_desc(irq);
-
- if (desc && !WARN_ON(irq_settings_is_per_cpu_devid(desc)))
- __free_irq(desc, act->dev_id);
-}
-EXPORT_SYMBOL_GPL(remove_irq);
-
/**
* free_irq - free an interrupt allocated with request_irq
* @irq: Interrupt line to free
--
2.25.1
^ permalink raw reply related [flat|nested] 78+ messages in thread