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authorValentin Schneider <valentin.schneider@arm.com>2020-07-03 18:56:45 +0300
committerThomas Gleixner <tglx@linutronix.de>2020-07-04 11:02:06 +0300
commit8fa88a88d573093868565a1afba43b5ae5b3a316 (patch)
tree20e59222b5dc73bbc0e58705f55ca034768eeb86 /kernel/irq
parent959f53bd90c3ac70e5481199c6159f6314f9f910 (diff)
downloadlinux-8fa88a88d573093868565a1afba43b5ae5b3a316.tar.xz
genirq: Remove preflow handler support
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
Diffstat (limited to 'kernel/irq')
-rw-r--r--kernel/irq/Kconfig4
-rw-r--r--kernel/irq/chip.c13
2 files changed, 0 insertions, 17 deletions
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 20512252ecc9..10a5aff4eecc 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 @@ 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);