[PATCH v4 12/18] PCI: dwc: Re-use local pointer to the resource data

Serge Semin
2022-06-10T08:30:15Z

The dw_pcie_host_init() method has two instances of the resource structure
pointers used in non-related places of the method. It's pointless to have
two different local storages for them since the corresponding code is
small and having resource specific names doesn't make it more readable.
Let's convert these parts of the function to using just a common pointer
to the resource structure instance. That shall make the code a bit nicer
looking.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>

---

Changelog v4:
- This is a new patch created on the v4 lap of the series.
---
.../pci/controller/dwc/pcie-designware-host.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 24123f647fa9..fa107e8dd2ab 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -293,17 +293,17 @@ int dw_pcie_host_init(struct pcie_port *pp)
struct platform_device *pdev = to_platform_device(dev);
struct resource_entry *win;
struct pci_host_bridge *bridge;
- struct resource *cfg_res;
+ struct resource *res;
int ret;

raw_spin_lock_init(&pp->lock);

- cfg_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "config");
- if (cfg_res) {
- pp->cfg0_size = resource_size(cfg_res);
- pp->cfg0_base = cfg_res->start;
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "config");
+ if (res) {
+ pp->cfg0_size = resource_size(res);
+ pp->cfg0_base = res->start;

- pp->va_cfg0_base = devm_pci_remap_cfg_resource(dev, cfg_res);
+ pp->va_cfg0_base = devm_pci_remap_cfg_resource(dev, res);
if (IS_ERR(pp->va_cfg0_base))
return PTR_ERR(pp->va_cfg0_base);
} else {
@@ -312,8 +312,8 @@ int dw_pcie_host_init(struct pcie_port *pp)
}

if (!pci->dbi_base) {
- struct resource *dbi_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi");
- pci->dbi_base = devm_pci_remap_cfg_resource(dev, dbi_res);
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dbi");
+ pci->dbi_base = devm_pci_remap_cfg_resource(dev, res);
if (IS_ERR(pci->dbi_base))
return PTR_ERR(pci->dbi_base);
}
--
2.35.1