linux-kernel - RE: [PATCH 1/2] fpga: dfl: pci: reduce the scope of variable 'ret'

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Date:   Thu, 16 Apr 2020 08:04:30 +0000
From:   "Wu, Hao" <hao.wu@...el.com>
To:     "Xu, Yilun" <yilun.xu@...el.com>,
        "mdf@...nel.org" <mdf@...nel.org>,
        "linux-fpga@...r.kernel.org" <linux-fpga@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "trix@...hat.com" <trix@...hat.com>,
        "bhu@...hat.com" <bhu@...hat.com>, "Xu, Yilun" <yilun.xu@...el.com>
Subject: RE: [PATCH 1/2] fpga: dfl: pci: reduce the scope of variable 'ret'

> -----Original Message-----
> From: linux-fpga-owner@...r.kernel.org <linux-fpga-owner@...r.kernel.org>
> On Behalf Of Xu Yilun
> Sent: Thursday, April 16, 2020 11:12 AM
> To: mdf@...nel.org; linux-fpga@...r.kernel.org; linux-
> kernel@...r.kernel.org
> Cc: trix@...hat.com; bhu@...hat.com; Xu, Yilun <yilun.xu@...el.com>
> Subject: [PATCH 1/2] fpga: dfl: pci: reduce the scope of variable 'ret'
> 
> This is to fix lkp cppcheck warnings:
> 
>  drivers/fpga/dfl-pci.c:230:6: warning: The scope of the variable 'ret' can be
> reduced. [variableScope]
>     int ret = 0;
>         ^
> 
>  drivers/fpga/dfl-pci.c:230:10: warning: Variable 'ret' is assigned a value that
> is never used. [unreadVariable]
>     int ret = 0;
>             ^
> 
> Fixes: 3c2760b78f90 ("fpga: dfl: pci: fix return value of
> cci_pci_sriov_configure")
> Reported-by: kbuild test robot <lkp@...el.com>
> Signed-off-by: Xu Yilun <yilun.xu@...el.com>

Looks good to me.

Acked-by: Wu Hao <hao.wu@...el.com>

> ---
>  drivers/fpga/dfl-pci.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/fpga/dfl-pci.c b/drivers/fpga/dfl-pci.c
> index 5387550..a78c409 100644
> --- a/drivers/fpga/dfl-pci.c
> +++ b/drivers/fpga/dfl-pci.c
> @@ -227,7 +227,6 @@ static int cci_pci_sriov_configure(struct pci_dev
> *pcidev, int num_vfs)
>  {
>  	struct cci_drvdata *drvdata = pci_get_drvdata(pcidev);
>  	struct dfl_fpga_cdev *cdev = drvdata->cdev;
> -	int ret = 0;
> 
>  	if (!num_vfs) {
>  		/*
> @@ -239,6 +238,8 @@ static int cci_pci_sriov_configure(struct pci_dev
> *pcidev, int num_vfs)
>  		dfl_fpga_cdev_config_ports_pf(cdev);
> 
>  	} else {
> +		int ret;
> +
>  		/*
>  		 * before enable SRIOV, put released ports into VF access
> mode
>  		 * first of all.
> --
> 2.7.4