linux/kernel/irq
Bart Van Assche 5280a14a60 genirq: Introduce irq_get_nr_irqs() and irq_set_nr_irqs()
Prepare for changing 'nr_irqs' from an exported global variable into a
variable with file scope.

This will prevent accidental changes of assignments to a local variable
'nr_irqs' into assignments to the global 'nr_irqs' variable.

Suppose that a patch would be submitted for review that removes a
declaration of a local variable with the name 'nr_irqs' and that that patch
does not remove all assignments to that local variable. Such a patch
converts an assignment to a local variable into an assignment into a global
variable. If the 'nr_irqs' assignment is more than three lines away from
other changes, the assignment won't be included in the diff context lines
and hence won't be visible without inspecting the modified file.

With these abstraction series applied, such accidental conversions from
assignments to a local variable into an assignment to a global variable are
converted into a compilation error.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241015190953.1266194-2-bvanassche@acm.org
2024-10-16 21:56:56 +02:00
..
affinity.c genirq/affinity: Move group_cpus_evenly() into lib/ 2023-01-17 18:50:06 +01:00
autoprobe.c genirq: Delay deactivation in free_irq() 2019-07-03 10:12:28 +02:00
chip.c genirq: Use cpumask_intersects() 2024-09-08 16:06:51 +02:00
cpuhotplug.c genirq/cpuhotplug: Use cpumask_intersects() 2024-09-06 16:28:39 +02:00
debug.h
debugfs.c genirq/debugfs: Print irqdomain flags as human-readable strings 2024-06-03 12:24:51 +02:00
devres.c irqdomain: Add a resource managed version of irq_domain_instantiate() 2024-06-17 15:48:14 +02:00
dummychip.c irq: Fix typos in comments 2021-03-22 04:23:14 +01:00
generic-chip.c genirq/generic_chip: Introduce init() and exit() hooks 2024-06-17 15:48:14 +02:00
handle.c irq: remove unused flags argument from __handle_irq_event_percpu() 2022-01-07 00:25:25 +01:00
internals.h genirq/debugfs: Print irqdomain flags as human-readable strings 2024-06-03 12:24:51 +02:00
ipi-mux.c genirq/ipi-mux: Use irq_domain_alloc_irqs() 2023-02-06 17:21:15 +00:00
ipi.c genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask() 2023-02-20 13:53:41 +01:00
irq_sim.c genirq/irq_sim: Remove unused irq_sim_work_ctx:: Irq_base 2024-08-08 17:15:01 +02:00
irqdesc.c genirq: Introduce irq_get_nr_irqs() and irq_set_nr_irqs() 2024-10-16 21:56:56 +02:00
irqdomain.c irqdomain: Use IS_ERR_OR_NULL() in irq_domain_trim_hierarchy() 2024-08-29 16:42:07 +02:00
Kconfig genirq: Provide a snapshot mechanism for interrupt statistics 2024-04-12 17:08:05 +02:00
Makefile genirq: Add mechanism to multiplex a single HW IPI 2023-02-05 10:57:55 +00:00
manage.c genirq: Get rid of global lock in irq_do_set_affinity() 2024-08-27 13:54:15 +02:00
matrix.c genirq/matrix: Dynamic bitmap allocation 2024-02-23 10:18:44 +01:00
migration.c genirq: Use cpumask_intersects() 2024-09-08 16:06:51 +02:00
msi.c pci-v6.12-changes 2024-09-23 12:47:06 -07:00
pm.c genirq/PM: Unexport {suspend,resume}_device_irqs() 2022-06-13 12:27:37 +02:00
proc.c genirq/proc: Change the return value for set affinity permission error 2024-08-29 16:42:06 +02:00
resend.c genirq: Reuse irq_is_nmi() 2024-04-24 20:42:57 +02:00
settings.h genirq: Add a IRQF_NO_DEBUG flag 2021-05-17 20:01:35 +02:00
spurious.c genirq: Disable irqfixup/poll on PREEMPT_RT. 2021-09-19 23:01:15 +02:00
timings.c Updates to the interrupt core and driver subsystems: 2021-08-30 14:38:37 -07:00