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authorThomas Gleixner <tglx@linutronix.de>2020-12-10 22:25:55 +0300
committerThomas Gleixner <tglx@linutronix.de>2020-12-15 18:19:33 +0300
commitb8fecfdfb08dcbabf3d46cfaf7c2fed0e6802ce8 (patch)
treebd88bea983b38af191e739ccaa3b13eacf9a8418 /drivers/pci/controller/mobiveil
parente56427068a8d796bb7b8e297f2b6e947380e383f (diff)
downloadlinux-b8fecfdfb08dcbabf3d46cfaf7c2fed0e6802ce8.tar.xz
PCI: mobiveil: Use irq_data_get_irq_chip_data()
Going through a full irq descriptor lookup instead of just using the proper helper function which provides direct access is suboptimal. In fact it _is_ wrong because the chip callback needs to get the chip data which is relevant for the chip while using the irq descriptor variant returns the irq chip data of the top level chip of a hierarchy. It does not matter in this case because the chip is the top level chip, but that doesn't make it more correct. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Rob Herring <robh@kernel.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20201210194044.473308721@linutronix.de
Diffstat (limited to 'drivers/pci/controller/mobiveil')
-rw-r--r--drivers/pci/controller/mobiveil/pcie-mobiveil-host.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
index a2632d02ce8f..c637de3a389b 100644
--- a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
+++ b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
@@ -306,13 +306,11 @@ int mobiveil_host_init(struct mobiveil_pcie *pcie, bool reinit)
static void mobiveil_mask_intx_irq(struct irq_data *data)
{
- struct irq_desc *desc = irq_to_desc(data->irq);
- struct mobiveil_pcie *pcie;
+ struct mobiveil_pcie *pcie = irq_data_get_irq_chip_data(data);
struct mobiveil_root_port *rp;
unsigned long flags;
u32 mask, shifted_val;
- pcie = irq_desc_get_chip_data(desc);
rp = &pcie->rp;
mask = 1 << ((data->hwirq + PAB_INTX_START) - 1);
raw_spin_lock_irqsave(&rp->intx_mask_lock, flags);
@@ -324,13 +322,11 @@ static void mobiveil_mask_intx_irq(struct irq_data *data)
static void mobiveil_unmask_intx_irq(struct irq_data *data)
{
- struct irq_desc *desc = irq_to_desc(data->irq);
- struct mobiveil_pcie *pcie;
+ struct mobiveil_pcie *pcie = irq_data_get_irq_chip_data(data);
struct mobiveil_root_port *rp;
unsigned long flags;
u32 shifted_val, mask;
- pcie = irq_desc_get_chip_data(desc);
rp = &pcie->rp;
mask = 1 << ((data->hwirq + PAB_INTX_START) - 1);
raw_spin_lock_irqsave(&rp->intx_mask_lock, flags);