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.schnei...@arm.com>
---
include/linux/irqdesc.h | 15 ---------------
include/linux/irqhandler.h | 1 -
kernel/irq/Kconfig | 4 ----
kernel/irq/chip.c | 13 -------------
4 files changed, 33 deletions(-)
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 8f2820c5e69e..5745491303e0 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -22,7 +22,6 @@ struct pt_regs;
* @irq_common_data: per irq and chip data passed down to chip functions
* @kstat_irqs: irq stats per cpu
* @handle_irq: highlevel irq-events handler
- * @preflow_handler: handler called before the flow handler (currently used
by sparc)
* @action: the irq action chain
* @status_use_accessors: status information
* @core_internal_state__do_not_mess_with_it: core internal status information
@@ -58,9 +57,6 @@ struct irq_desc {
struct irq_data irq_data;
unsigned int __percpu *kstat_irqs;
irq_flow_handler_t handle_irq;
-#ifdef CONFIG_IRQ_PREFLOW_FASTEOI
- irq_preflow_handler_t preflow_handler;
-#endif
struct irqaction *action; /* IRQ action list */
unsigned int status_use_accessors;
unsigned int core_internal_state__do_not_mess_with_it;
@@ -268,15 +264,4 @@ irq_set_lockdep_class(unsigned int irq, struct
lock_class_key *lock_class,
}
}
-#ifdef CONFIG_IRQ_PREFLOW_FASTEOI
-static inline void
-__irq_set_preflow_handler(unsigned int irq, irq_preflow_handler_t handler)
-{
- struct irq_desc *desc;
-
- desc = irq_to_desc(irq);
- desc->preflow_handler = handler;
-}
-#endif
-
#endif
diff --git a/include/linux/irqhandler.h b/include/linux/irqhandler.h
index 1e6f4e7123d6..c30f454a9518 100644
--- a/include/linux/irqhandler.h
+++ b/include/linux/irqhandler.h
@@ -10,6 +10,5 @@
struct irq_desc;
struct irq_data;
typedef void (*irq_flow_handler_t)(struct irq_desc *desc);
-typedef void (*irq_preflow_handler_t)(struct irq_data *data);
#endif
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index d63c324895ea..58f0e996a2c3 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -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
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 41e7e37a0928..75bbaa8b38f1 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -656,16 +656,6 @@ void handle_level_irq(struct irq_desc *desc)
}
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);
--
2.27.0
