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genirq: Remove preflow handler support

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That was put in place for sparc64, and blackfin also used it for some time;
sparc64 no longer uses those, and blackfin is dead.

As there are no more users, remove preflow handlers.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200703155645.29703-3-valentin.schneider@arm.com
This commit is contained in:
Valentin Schneider
2020-07-03 16:56:45 +01:00
committed by Thomas Gleixner
parent 959f53bd90
commit 8fa88a88d5
4 changed files with 0 additions and 33 deletions
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4
kernel/irq/Kconfig
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@@ -51,10 +51,6 @@ config GENERIC_IRQ_INJECTION
config HARDIRQS_SW_RESEND
bool
# Preflow handler support for fasteoi (sparc64)
config IRQ_PREFLOW_FASTEOI
bool
# Edge style eoi based handler (cell)
config IRQ_EDGE_EOI_HANDLER
bool

13
kernel/irq/chip.c
View File

@@ -656,16 +656,6 @@ out_unlock:
}
EXPORT_SYMBOL_GPL(handle_level_irq);
#ifdef CONFIG_IRQ_PREFLOW_FASTEOI
static inline void preflow_handler(struct irq_desc *desc)
{
if (desc->preflow_handler)
desc->preflow_handler(&desc->irq_data);
}
#else
static inline void preflow_handler(struct irq_desc *desc) { }
#endif
static void cond_unmask_eoi_irq(struct irq_desc *desc, struct irq_chip *chip)
{
if (!(desc->istate & IRQS_ONESHOT)) {
@@ -721,7 +711,6 @@ void handle_fasteoi_irq(struct irq_desc *desc)
if (desc->istate & IRQS_ONESHOT)
mask_irq(desc);
preflow_handler(desc);
handle_irq_event(desc);
cond_unmask_eoi_irq(desc, chip);
@@ -1231,7 +1220,6 @@ void handle_fasteoi_ack_irq(struct irq_desc *desc)
/* Start handling the irq */
desc->irq_data.chip->irq_ack(&desc->irq_data);
preflow_handler(desc);
handle_irq_event(desc);
cond_unmask_eoi_irq(desc, chip);
@@ -1281,7 +1269,6 @@ void handle_fasteoi_mask_irq(struct irq_desc *desc)
if (desc->istate & IRQS_ONESHOT)
mask_irq(desc);
preflow_handler(desc);
handle_irq_event(desc);
cond_unmask_eoi_irq(desc, chip);