From c119e6685311cef0e4a4e0b7752293bea056bac7 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 10 Dec 2025 08:22:37 +0000 Subject: genirq: Remove IRQ timing tracking infrastructure The IRQ timing tracking infrastructure was merged in 2019, but was never plumbed in, is not selectable, and is therefore never used. As Daniel agrees that there is little hope for this infrastructure to be completed in the near term, drop it altogether. Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Reviewed-by: Jinjie Ruan Link: https://lore.kernel.org/r/87zf7vex6h.wl-maz@kernel.org Link: https://patch.msgid.link/20251210082242.360936-2-maz@kernel.org --- include/linux/interrupt.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 266f2b39213a..44e335b17ed6 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -871,12 +871,6 @@ static inline void init_irq_proc(void) } #endif -#ifdef CONFIG_IRQ_TIMINGS -void irq_timings_enable(void); -void irq_timings_disable(void); -u64 irq_timings_next_event(u64 now); -#endif - struct seq_file; int show_interrupts(struct seq_file *p, void *v); int arch_show_interrupts(struct seq_file *p, int prec); -- cgit v1.2.3 From e9b624ea31cc957b3a7798f89c20a80a8cbb0b73 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 10 Dec 2025 08:22:38 +0000 Subject: genirq: Remove __request_percpu_irq() helper With the IRQ timing stuff being gone, there is no need to specify a flag when requesting a percpu interrupt. Not only IRQF_TIMER was the only flag (set of flags actually) allowed, but nobody ever passed it. Get rid of __request_percpu_irq(), which was only getting 0 as flags, and promote request_percpu_irq_affinity() as its replacement. Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Reviewed-by: Jinjie Ruan Link: https://patch.msgid.link/20251210082242.360936-3-maz@kernel.org --- include/linux/interrupt.h | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 44e335b17ed6..00c01b0a43be 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -181,9 +181,8 @@ request_any_context_irq(unsigned int irq, irq_handler_t handler, unsigned long flags, const char *name, void *dev_id); extern int __must_check -__request_percpu_irq(unsigned int irq, irq_handler_t handler, - unsigned long flags, const char *devname, - const cpumask_t *affinity, void __percpu *percpu_dev_id); +request_percpu_irq_affinity(unsigned int irq, irq_handler_t handler, const char *devname, + const cpumask_t *affinity, void __percpu *percpu_dev_id); extern int __must_check request_nmi(unsigned int irq, irq_handler_t handler, unsigned long flags, @@ -193,17 +192,8 @@ static inline int __must_check request_percpu_irq(unsigned int irq, irq_handler_t handler, const char *devname, void __percpu *percpu_dev_id) { - return __request_percpu_irq(irq, handler, 0, - devname, NULL, percpu_dev_id); -} - -static inline int __must_check -request_percpu_irq_affinity(unsigned int irq, irq_handler_t handler, - const char *devname, const cpumask_t *affinity, - void __percpu *percpu_dev_id) -{ - return __request_percpu_irq(irq, handler, 0, - devname, affinity, percpu_dev_id); + return request_percpu_irq_affinity(irq, handler, devname, + NULL, percpu_dev_id); } extern int __must_check -- cgit v1.2.3 From dbcc728e185f8c27fcafa1408ff63fe38c7dc72d Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 10 Dec 2025 08:22:42 +0000 Subject: genirq: Remove setup_percpu_irq() setup_percpu_irq() was always a bad kludge, and should have never been there the first place. Now that the last users are gone, remove it for good. Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20251210082242.360936-7-maz@kernel.org --- include/linux/irq.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 4a9f1d7b08c3..67ea759749be 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -595,9 +595,6 @@ enum { #define IRQ_DEFAULT_INIT_FLAGS ARCH_IRQ_INIT_FLAGS -struct irqaction; -extern int setup_percpu_irq(unsigned int irq, struct irqaction *new); - #ifdef CONFIG_DEPRECATED_IRQ_CPU_ONOFFLINE extern void irq_cpu_online(void); extern void irq_cpu_offline(void); -- cgit v1.2.3