linux-kernel - Re: [PATCH 21/21] PCI: designware: Remove superfluous shifting in definitions

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Date:   Wed, 26 Dec 2018 14:49:35 +0000
From:   Gustavo Pimentel <gustavo.pimentel@...opsys.com>
To:     Andrey Smirnov <andrew.smirnov@...il.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
CC:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Fabio Estevam <fabio.estevam@....com>,
        Chris Healy <cphealy@...il.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Leonard Crestez <leonard.crestez@....com>,
        "A.s. Dong" <aisheng.dong@....com>,
        Richard Zhu <hongxing.zhu@....com>,
        "linux-imx@....com" <linux-imx@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 21/21] PCI: designware: Remove superfluous shifting in
 definitions

Hi,

On 21/12/2018 07:27, Andrey Smirnov wrote:
> Surrounding definitions no longer use explicit shift, so "<< 0" here
> serve no purpose. Remove them. No functional change intended.
> 
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
> Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> Cc: Fabio Estevam <fabio.estevam@....com>
> Cc: Chris Healy <cphealy@...il.com>
> Cc: Lucas Stach <l.stach@...gutronix.de>
> Cc: Leonard Crestez <leonard.crestez@....com>
> Cc: "A.s. Dong" <aisheng.dong@....com>
> Cc: Richard Zhu <hongxing.zhu@....com>
> Cc: linux-imx@....com
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> Cc: linux-pci@...r.kernel.org
> Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
> ---
>  drivers/pci/controller/dwc/pcie-designware.h | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
> index 0de653284fca..636689fd4ee7 100644
> --- a/drivers/pci/controller/dwc/pcie-designware.h
> +++ b/drivers/pci/controller/dwc/pcie-designware.h
> @@ -63,14 +63,14 @@
>  #define PCIE_ATU_VIEWPORT		0x900
>  #define PCIE_ATU_REGION_INBOUND		BIT(31)
>  #define PCIE_ATU_REGION_OUTBOUND	0
> -#define PCIE_ATU_REGION_INDEX2		(0x2 << 0)
> -#define PCIE_ATU_REGION_INDEX1		(0x1 << 0)
> -#define PCIE_ATU_REGION_INDEX0		(0x0 << 0)
> +#define PCIE_ATU_REGION_INDEX2		0x2
> +#define PCIE_ATU_REGION_INDEX1		0x1
> +#define PCIE_ATU_REGION_INDEX0		0x0
>  #define PCIE_ATU_CR1			0x904
> -#define PCIE_ATU_TYPE_MEM		(0x0 << 0)
> -#define PCIE_ATU_TYPE_IO		(0x2 << 0)
> -#define PCIE_ATU_TYPE_CFG0		(0x4 << 0)
> -#define PCIE_ATU_TYPE_CFG1		(0x5 << 0)
> +#define PCIE_ATU_TYPE_MEM		0x0
> +#define PCIE_ATU_TYPE_IO		0x2
> +#define PCIE_ATU_TYPE_CFG0		0x4
> +#define PCIE_ATU_TYPE_CFG1		0x5
>  #define PCIE_ATU_CR2			0x908
>  #define PCIE_ATU_ENABLE			BIT(31)
>  #define PCIE_ATU_BAR_MODE_ENABLE	BIT(30)
> 

Agree.

Acked-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>

Thanks.