Commit f296dcd6 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq: Remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ 



Commit bb9d8126 ("arch: remove tile port") removed the last user of
this cruft two years ago...

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/87eekvac06.fsf@nanos.tec.linutronix.de
parent d315c627

include/linux/irq.h

+0 −15
Original line number Diff line number Diff line
@@ -954,21 +954,6 @@ static inline void irq_free_desc(unsigned int irq) 
	irq_free_descs(irq, 1);

}



#ifdef CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ

unsigned int irq_alloc_hwirqs(int cnt, int node);

static inline unsigned int irq_alloc_hwirq(int node)

{

	return irq_alloc_hwirqs(1, node);

}

void irq_free_hwirqs(unsigned int from, int cnt);

static inline void irq_free_hwirq(unsigned int irq)

{

	return irq_free_hwirqs(irq, 1);

}

int arch_setup_hwirq(unsigned int irq, int node);

void arch_teardown_hwirq(unsigned int irq);

#endif



#ifdef CONFIG_GENERIC_IRQ_LEGACY

void irq_init_desc(unsigned int irq);

#endif

kernel/irq/Kconfig

+0 −5
Original line number Diff line number Diff line
@@ -26,11 +26,6 @@ config GENERIC_IRQ_SHOW_LEVEL 
config GENERIC_IRQ_EFFECTIVE_AFF_MASK

       bool



# Facility to allocate a hardware interrupt. This is legacy support

# and should not be used in new code. Use irq domains instead.

config GENERIC_IRQ_LEGACY_ALLOC_HWIRQ

       bool



# Support for delayed migration from interrupt context

config GENERIC_PENDING_IRQ

	bool

kernel/irq/irqdesc.c

+0 −51
Original line number Diff line number Diff line
@@ -810,57 +810,6 @@ __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, 
}

EXPORT_SYMBOL_GPL(__irq_alloc_descs);



#ifdef CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ

/**

 * irq_alloc_hwirqs - Allocate an irq descriptor and initialize the hardware

 * @cnt:	number of interrupts to allocate

 * @node:	node on which to allocate

 *

 * Returns an interrupt number > 0 or 0, if the allocation fails.

 */

unsigned int irq_alloc_hwirqs(int cnt, int node)

{

	int i, irq = __irq_alloc_descs(-1, 0, cnt, node, NULL, NULL);



	if (irq < 0)

		return 0;



	for (i = irq; cnt > 0; i++, cnt--) {

		if (arch_setup_hwirq(i, node))

			goto err;

		irq_clear_status_flags(i, _IRQ_NOREQUEST);

	}

	return irq;



err:

	for (i--; i >= irq; i--) {

		irq_set_status_flags(i, _IRQ_NOREQUEST | _IRQ_NOPROBE);

		arch_teardown_hwirq(i);

	}

	irq_free_descs(irq, cnt);

	return 0;

}

EXPORT_SYMBOL_GPL(irq_alloc_hwirqs);



/**

 * irq_free_hwirqs - Free irq descriptor and cleanup the hardware

 * @from:	Free from irq number

 * @cnt:	number of interrupts to free

 *

 */

void irq_free_hwirqs(unsigned int from, int cnt)

{

	int i, j;



	for (i = from, j = cnt; j > 0; i++, j--) {

		irq_set_status_flags(i, _IRQ_NOREQUEST | _IRQ_NOPROBE);

		arch_teardown_hwirq(i);

	}

	irq_free_descs(from, cnt);

}

EXPORT_SYMBOL_GPL(irq_free_hwirqs);

#endif



/**

 * irq_get_next_irq - get next allocated irq number

 * @offset:	where to start the search