[RFT v2 13/48] keystone, irq: Use irq_data_get_xxx() to avoid redundant lookup of irq_data

[Jiang Liu]

Use irq_data_get_xxx() to avoid redundant lookup of irq_data while we
already have a pointer to corresponding irq_data.

Signed-off-by: Jiang Liu <jiang....@linux.intel.com>
---
 drivers/pci/host/pci-keystone-dw.c |   15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/pci/host/pci-keystone-dw.c 
b/drivers/pci/host/pci-keystone-dw.c
index f34892e0edb4..e42d077039d3 100644
--- a/drivers/pci/host/pci-keystone-dw.c
+++ b/drivers/pci/host/pci-keystone-dw.c
@@ -104,14 +104,13 @@ static void ks_dw_pcie_msi_irq_ack(struct irq_data *d)
 {
        u32 offset, reg_offset, bit_pos;
        struct keystone_pcie *ks_pcie;
-       unsigned int irq = d->irq;
        struct msi_desc *msi;
        struct pcie_port *pp;
 
-       msi = irq_get_msi_desc(irq);
+       msi = irq_data_get_msi_desc(d);
        pp = sys_to_pcie(msi->dev->bus->sysdata);
        ks_pcie = to_keystone_pcie(pp);
-       offset = irq - irq_linear_revmap(pp->irq_domain, 0);
+       offset = d->irq - irq_linear_revmap(pp->irq_domain, 0);
        update_reg_offset_bit_pos(offset, &reg_offset, &bit_pos);
 
        writel(BIT(bit_pos),
@@ -142,15 +141,14 @@ void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int 
irq)
 static void ks_dw_pcie_msi_irq_mask(struct irq_data *d)
 {
        struct keystone_pcie *ks_pcie;
-       unsigned int irq = d->irq;
        struct msi_desc *msi;
        struct pcie_port *pp;
        u32 offset;
 
-       msi = irq_get_msi_desc(irq);
+       msi = irq_data_get_msi_desc(d);
        pp = sys_to_pcie(msi->dev->bus->sysdata);
        ks_pcie = to_keystone_pcie(pp);
-       offset = irq - irq_linear_revmap(pp->irq_domain, 0);
+       offset = d->irq - irq_linear_revmap(pp->irq_domain, 0);
 
        /* Mask the end point if PVM implemented */
        if (IS_ENABLED(CONFIG_PCI_MSI)) {
@@ -164,15 +162,14 @@ static void ks_dw_pcie_msi_irq_mask(struct irq_data *d)
 static void ks_dw_pcie_msi_irq_unmask(struct irq_data *d)
 {
        struct keystone_pcie *ks_pcie;
-       unsigned int irq = d->irq;
        struct msi_desc *msi;
        struct pcie_port *pp;
        u32 offset;
 
-       msi = irq_get_msi_desc(irq);
+       msi = irq_data_get_msi_desc(d);
        pp = sys_to_pcie(msi->dev->bus->sysdata);
        ks_pcie = to_keystone_pcie(pp);
-       offset = irq - irq_linear_revmap(pp->irq_domain, 0);
+       offset = d->irq - irq_linear_revmap(pp->irq_domain, 0);
 
        /* Mask the end point if PVM implemented */
        if (IS_ENABLED(CONFIG_PCI_MSI)) {
-- 
1.7.10.4

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