From 8228a048961a93e871779c658eaa801f747e6c1d Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 13 Jul 2015 20:51:25 +0000 Subject: sh/intc: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Also replace generic_handle_irq with generic_handle_irq_desc() to avoid looking up irq_desc again. Signed-off-by: Jiang Liu Cc: Simon Horman Cc: Magnus Damm Link: http://lkml.kernel.org/r/20150713151626.792845830@linutronix.de Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- drivers/sh/intc/core.c | 2 +- drivers/sh/intc/virq.c | 14 ++++++++------ 2 files changed, 9 insertions(+), 7 deletions(-) (limited to 'drivers/sh') diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c index 156b790072b4..043419dcee92 100644 --- a/drivers/sh/intc/core.c +++ b/drivers/sh/intc/core.c @@ -67,7 +67,7 @@ void intc_set_prio_level(unsigned int irq, unsigned int level) static void intc_redirect_irq(unsigned int irq, struct irq_desc *desc) { - generic_handle_irq((unsigned int)irq_get_handler_data(irq)); + generic_handle_irq((unsigned int)irq_desc_get_handler_data(desc)); } static void __init intc_register_irq(struct intc_desc *desc, diff --git a/drivers/sh/intc/virq.c b/drivers/sh/intc/virq.c index 0f735301d3ec..503d95a48d13 100644 --- a/drivers/sh/intc/virq.c +++ b/drivers/sh/intc/virq.c @@ -111,7 +111,7 @@ static int add_virq_to_pirq(unsigned int irq, unsigned int virq) static void intc_virq_handler(unsigned int irq, struct irq_desc *desc) { - struct irq_data *data = irq_get_irq_data(irq); + struct irq_data *data = irq_desc_get_irq_data(desc); struct irq_chip *chip = irq_data_get_irq_chip(data); struct intc_virq_list *entry, *vlist = irq_data_get_irq_handler_data(data); struct intc_desc_int *d = get_intc_desc(irq); @@ -120,12 +120,14 @@ static void intc_virq_handler(unsigned int irq, struct irq_desc *desc) for_each_virq(entry, vlist) { unsigned long addr, handle; + struct irq_desc *vdesc = irq_to_desc(entry->irq); - handle = (unsigned long)irq_get_handler_data(entry->irq); - addr = INTC_REG(d, _INTC_ADDR_E(handle), 0); - - if (intc_reg_fns[_INTC_FN(handle)](addr, handle, 0)) - generic_handle_irq(entry->irq); + if (vdesc) { + handle = (unsigned long)irq_desc_get_handler_data(vdesc); + addr = INTC_REG(d, _INTC_ADDR_E(handle), 0); + if (intc_reg_fns[_INTC_FN(handle)](addr, handle, 0)) + generic_handle_irq_desc(entry->irq, vdesc); + } } chip->irq_unmask(data); -- cgit v1.2.3