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| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-07-13 20:51:25 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-29 10:08:08 +0200 |
| commit | 8228a048961a93e871779c658eaa801f747e6c1d (patch) | |
| tree | 59225ed8e20d32615e845185092b1a792bb062d7 /drivers/sh | |
| parent | 8b8149df9ce99e02cb2b4655bf20d0ce459b9076 (diff) | |
| download | linux-stable-8228a048961a93e871779c658eaa801f747e6c1d.tar.gz linux-stable-8228a048961a93e871779c658eaa801f747e6c1d.tar.bz2 linux-stable-8228a048961a93e871779c658eaa801f747e6c1d.zip | |
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 <jiang.liu@linux.intel.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/20150713151626.792845830@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/sh')
| -rw-r--r-- | drivers/sh/intc/core.c | 2 | ||||
| -rw-r--r-- | drivers/sh/intc/virq.c | 14 |
2 files changed, 9 insertions, 7 deletions
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); |