Messages in this thread Patch in this message | | | Date | Mon, 13 Jul 2015 20:39:54 -0000 | From | Thomas Gleixner <> | Subject | [patch 2/2] dma/ipu: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc |
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From: Jiang Liu <jiang.liu@linux.intel.com>
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc.
This is also a preparation for the removal of the 'irq' argument from interrupt flow handlers.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: dmaengine@vger.kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- drivers/dma/ipu/ipu_irq.c | 2 +- drivers/gpu/ipu-v3/ipu-common.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)
Index: tip/drivers/dma/ipu/ipu_irq.c =================================================================== --- tip.orig/drivers/dma/ipu/ipu_irq.c +++ tip/drivers/dma/ipu/ipu_irq.c @@ -268,7 +268,7 @@ int ipu_irq_unmap(unsigned int source) /* Chained IRQ handler for IPU error interrupt */ static void ipu_irq_err(unsigned int irq, struct irq_desc *desc) { - struct ipu *ipu = irq_get_handler_data(irq); + struct ipu *ipu = irq_desc_get_handler_data(desc); u32 status; int i, line; Index: tip/drivers/gpu/ipu-v3/ipu-common.c =================================================================== --- tip.orig/drivers/gpu/ipu-v3/ipu-common.c +++ tip/drivers/gpu/ipu-v3/ipu-common.c @@ -915,8 +915,8 @@ static void ipu_irq_handle(struct ipu_so static void ipu_irq_handler(unsigned int irq, struct irq_desc *desc) { struct ipu_soc *ipu = irq_desc_get_handler_data(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); const int int_reg[] = { 0, 1, 2, 3, 10, 11, 12, 13, 14}; - struct irq_chip *chip = irq_get_chip(irq); chained_irq_enter(chip, desc); @@ -928,8 +928,8 @@ static void ipu_irq_handler(unsigned int static void ipu_err_irq_handler(unsigned int irq, struct irq_desc *desc) { struct ipu_soc *ipu = irq_desc_get_handler_data(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); const int int_reg[] = { 4, 5, 8, 9}; - struct irq_chip *chip = irq_get_chip(irq); chained_irq_enter(chip, desc);
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