diff mbox series

[RESEND,v5,12/18] PCI: dwc: Re-use local pointer to the resource data

Message ID 20220624143428.8334-13-Sergey.Semin@baikalelectronics.ru
State New
Headers show
Series PCI: dwc: Various fixes and cleanups | expand

Commit Message

Serge Semin June 24, 2022, 2:34 p.m. UTC
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>
Reviewed-by: Rob Herring <robh@kernel.org>

---

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(-)

Comments

Manivannan Sadhasivam June 28, 2022, 6:39 a.m. UTC | #1
On Fri, Jun 24, 2022 at 05:34:22PM +0300, Serge Semin wrote:
> 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>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

Thanks,
Mani

> Reviewed-by: Rob Herring <robh@kernel.org>
> 
> ---
> 
> 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 54257874c154..2f13eec4812d 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
>
diff mbox series

Patch

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 54257874c154..2f13eec4812d 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);
 	}