RE: [PATCH v9 4/4] docs: ABI: Add sysfs documentation interface of dw-xdata-pcie driver

From: Gustavo Pimentel
Date: Mon Mar 29 2021 - 06:54:26 EST


On Mon, Mar 29, 2021 at 11:40:28, Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:

> On Mon, Mar 29, 2021 at 10:25:25AM +0000, Gustavo Pimentel wrote:
> > On Mon, Mar 29, 2021 at 11:8:11, Greg Kroah-Hartman
> > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> >
> > > On Mon, Mar 29, 2021 at 11:59:40AM +0200, Gustavo Pimentel wrote:
> > > > This patch describes the sysfs interface implemented on the dw-xdata-pcie
> > > > driver.
> > > >
> > > > Signed-off-by: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
> > > > ---
> > > > Documentation/ABI/testing/sysfs-driver-xdata | 46 ++++++++++++++++++++++++++++
> > > > 1 file changed, 46 insertions(+)
> > > > create mode 100644 Documentation/ABI/testing/sysfs-driver-xdata
> > > >
> > > > diff --git a/Documentation/ABI/testing/sysfs-driver-xdata b/Documentation/ABI/testing/sysfs-driver-xdata
> > > > new file mode 100644
> > > > index 00000000..66af19a
> > > > --- /dev/null
> > > > +++ b/Documentation/ABI/testing/sysfs-driver-xdata
> > > > @@ -0,0 +1,46 @@
> > > > +What: /sys/class/misc/drivers/dw-xdata-pcie.<device>/write
> > > > +Date: April 2021
> > > > +KernelVersion: 5.13
> > > > +Contact: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
> > > > +Description: Allows the user to enable the PCIe traffic generator which
> > > > + will create write TLPs frames - from the Root Complex to the
> > > > + Endpoint direction.
> > > > + Usage e.g.
> > > > + echo 1 > /sys/class/misc/dw-xdata-pcie.<device>/write
> > >
> > > Again, this does not match the code. Either fix the code (which I
> > > recommend), or change this and the other sysfs descriptions of writing
> > > values here.
> >
> > I've commented about this previously, but I didn't get feedback on it,
> > therefore I assumed that justification was okay.
> > I will change the code to accept only the "1" input on the *_store()
>
> Why not use the built-in function to parse "1/y/Y" that the kernel
> provides for this type of thing?

I found kstrtobool() just now. I'm adapting the code as we speak.
After testing I will send the v10 as soon as possible.

-Gustavo

>
> thanks,
>
> greg k-h