[PATCH 28/37] powerpc: fsl_msi: use chip_data not handler_data
From: Milton Miller <hidden>
Date: 2011-05-11 07:42:38
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
handler_data should be reserved for flow handlers on the dependent irq, not consumed by the parent irq code that is part of the irq_chip code. The msi_data pointer was already set in msidesc->irqhost->hostdata and being copied to irq_data->chipdata in the msidesc->irqhost->map() method called via create_irq_mapping, so we can obtain the pointer from there and free the instance it in teardown_msi_irqs. Also remove the unnecessary cast of irq_get_handler_data in the cascade handler, which is the demux flow handler of the parent msi interrupt. (This is the expected usage for handler_data). Signed-off-by: Milton Miller <redacted> --- --- arch/powerpc/sysdev/fsl_msi.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 077776c..067cc88 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c@@ -110,7 +110,7 @@ static void fsl_teardown_msi_irqs(struct pci_dev *pdev) list_for_each_entry(entry, &pdev->msi_list, list) { if (entry->irq == NO_IRQ) continue; - msi_data = irq_get_handler_data(entry->irq); + msi_data = irq_get_chip_data(entry->irq); irq_set_msi_desc(entry->irq, NULL); msi_bitmap_free_hwirqs(&msi_data->bitmap, virq_to_hw(entry->irq), 1);
@@ -168,7 +168,7 @@ static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) rc = -ENOSPC; goto out_free; } - irq_set_handler_data(virq, msi_data); + /* chip_data is msi_data via host->hostdata in host->map() */ irq_set_msi_desc(virq, entry); fsl_compose_msi_msg(pdev, hwirq, &msg, msi_data);
@@ -193,7 +193,7 @@ static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc) u32 have_shift = 0; struct fsl_msi_cascade_data *cascade_data; - cascade_data = (struct fsl_msi_cascade_data *)irq_get_handler_data(irq); + cascade_data = irq_get_handler_data(irq); msi_data = cascade_data->msi_data; raw_spin_lock(&desc->lock);
--
1.7.0.4