On Monday, April 9, 2018 5:41 AM, Gustavo Pimentel wrote:
>
> Replaces a simple division by 2 to a right shift rotation of 1 bit.
It looks good. However, would you add a simple reason to the commit
message?
Best regards,
Jingoo Han
>
> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
> ---
> Change v1->v2:
> - Nothing changed, just to follow the patch set version.
>
> drivers/pci/dwc/pcie-designware-host.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pci/dwc/pcie-designware-host.c
> b/drivers/pci/dwc/pcie-designware-host.c
> index 03e9b82..8e6fed4 100644
> --- a/drivers/pci/dwc/pcie-designware-host.c
> +++ b/drivers/pci/dwc/pcie-designware-host.c
> @@ -332,8 +332,8 @@ int dw_pcie_host_init(struct pcie_port *pp)
>
> cfg_res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> "config");
> if (cfg_res) {
> - pp->cfg0_size = resource_size(cfg_res) / 2;
> - pp->cfg1_size = resource_size(cfg_res) / 2;
> + pp->cfg0_size = resource_size(cfg_res) >> 1;
> + pp->cfg1_size = resource_size(cfg_res) >> 1;
> pp->cfg0_base = cfg_res->start;
> pp->cfg1_base = cfg_res->start + pp->cfg0_size;
> } else if (!pp->va_cfg0_base) {
> @@ -377,8 +377,8 @@ int dw_pcie_host_init(struct pcie_port *pp)
> break;
> case 0:
> pp->cfg = win->res;
> - pp->cfg0_size = resource_size(pp->cfg) / 2;
> - pp->cfg1_size = resource_size(pp->cfg) / 2;
> + pp->cfg0_size = resource_size(pp->cfg) >> 1;
> + pp->cfg1_size = resource_size(pp->cfg) >> 1;
> pp->cfg0_base = pp->cfg->start;
> pp->cfg1_base = pp->cfg->start + pp->cfg0_size;
> break;
> --
> 2.7.4
>
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