From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Tull <atull@kernel.org>
Subject: Re: [PATCH v4 23/24] fpga: dfl: afu: add user afu sub feature support
Date: Wed, 21 Mar 2018 18:50:54 -0500
Message-ID: <CANk1AXSyh1ZcbgVbj3DxjULEeYKMfq_4CA6P0DK6+_z-pnBMUw@mail.gmail.com>
References: <1518513893-4719-1-git-send-email-hao.wu@intel.com>
 <1518513893-4719-24-git-send-email-hao.wu@intel.com> <CANk1AXQpPXhNoPt1Uj=YvbtO+jun7e2Yzvyp+wuR1ZXx6+-i8Q@mail.gmail.com>
 <20180320071037.GB31239@hao-dev>
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To: Wu Hao <hao.wu@intel.com>
Cc: Moritz Fischer <mdf@kernel.org>, linux-fpga@vger.kernel.org, linux-kernel <linux-kernel@vger.kernel.org>, linux-api@vger.kernel.org, "Kang, Luwei" <luwei.kang@intel.com>, "Zhang, Yi Z" <yi.z.zhang@intel.com>, Xiao Guangrong <guangrong.xiao@linux.intel.com>, Tim Whisonant <tim.whisonant@intel.com>, Enno Luebbers <enno.luebbers@intel.com>, Shiva Rao <shiva.rao@intel.com>, Christopher Rauer <christopher.rauer@intel.com>
List-Id: linux-api@vger.kernel.org

On Tue, Mar 20, 2018 at 2:10 AM, Wu Hao <hao.wu@intel.com> wrote:

>> > +static int afu_mmap(struct file *filp, struct vm_area_struct *vma)
>> > +{
>> > +       struct fpga_afu_region region;
>> > +       struct platform_device *pdev = filp->private_data;
>> > +       struct feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
>> > +       u64 size = vma->vm_end - vma->vm_start;
>> > +       u64 offset;
>> > +       int ret;
>> > +
>> > +       if (!(vma->vm_flags & VM_SHARED))
>> > +               return -EINVAL;
>> > +
>> > +       offset = vma->vm_pgoff << PAGE_SHIFT;
>> > +       ret = afu_get_region_by_offset(pdata, offset, size, &region);

Most of the functions here are afu_region_*, but there's also
afu_get_region_by_*.  Better if afu_region_get_by_* to be consistent.

>> > +       if (ret)
>> > +               return ret;
>> > +
>> > +       if (!(region.flags & FPGA_REGION_MMAP))
>>
>> FPGA_REGION_*?  We already have FPGA regions which are something
>> different.  Please call this something else.
>
> Yes, will replace it with DFL_FPGA_*.