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a2ea3cd783
linux/kernel/irq
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Andy Shevchenko a2ea3cd783 irqdomain: Check virq for 0 before use in irq_dispose_mapping() 
It's a bit hard to read the logic since the virq is used before checking it
for 0. Rearrange the code to make it better to understand.

This, in particular, should clearly answer the question whether the caller
needs to perform this check or not, and there are plenty of places for both
variants, confirming a confusion.

Fun fact that the new code is shorter:

  Function                                     old     new   delta
  irq_dispose_mapping                          278     271      -7
  Total: Before=11625, After=11618, chg -0.06%

when compiled by GCC on Debian for x86_64.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240405190105.3932034-1-andriy.shevchenko@linux.intel.com
2024-04-08 12:08:58 +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: Prevent nested thread vs synchronize_hardirq() deadlock 2023-07-31 17:24:22 +02:00
cpuhotplug.c sched/isolation: Use single feature type while referring to housekeeping cpumask 2022-02-16 15:57:55 +01:00
debug.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk 2018-02-01 13:36:15 -08:00
debugfs.c x86/apic/msi: Fix misconfigured non-maskable MSI quirk 2023-10-26 13:53:06 +02:00
devres.c genirq/devres: Use struct_size() in devm_kzalloc() 2019-04-16 21:54:03 +02:00
dummychip.c irq: Fix typos in comments 2021-03-22 04:23:14 +01:00
generic-chip.c genirq/generic_chip: Make irq_remove_generic_chip() irqdomain aware 2023-10-27 09:15:44 +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: Remove unused extern declaration 2023-07-31 17:27:16 +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: Shrink code by using <linux/cleanup.h> helpers 2024-01-29 11:07:57 +01:00
irqdesc.c genirq: Deduplicate interrupt descriptor initialization 2024-01-24 16:02:48 +01:00
irqdomain.c irqdomain: Check virq for 0 before use in irq_dispose_mapping() 2024-04-08 12:08:58 +02:00
Kconfig genirq: Add mechanism to multiplex a single HW IPI 2023-02-05 10:57:55 +00:00
Makefile genirq: Add mechanism to multiplex a single HW IPI 2023-02-05 10:57:55 +00:00
manage.c genirq: Wake interrupt threads immediately when changing affinity 2024-02-19 11:43:46 +01:00
matrix.c genirq/matrix: Dynamic bitmap allocation 2024-02-23 10:18:44 +01:00
migration.c genirq: Fix typos and misspellings in comments 2021-03-16 15:08:29 +01:00
msi.c genirq/msi: Provide MSI_FLAG_PARENT_PM_DEV 2024-02-15 17:55:41 +01:00
pm.c genirq/PM: Unexport {suspend,resume}_device_irqs() 2022-06-13 12:27:37 +02:00
proc.c proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
resend.c genirq: Fix software resend lockup and nested resend 2023-08-26 19:14:31 +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