Re: [PATCH] soc: Convert to using %pOFn instead of device_node.name

Li Yang
2018-08-28T22:29:31Z

On Tue, Aug 28, 2018 at 5:16 PM Tyrel Datwyler
<tyreld@linux.vnet.ibm.com> wrote:
>
> On 08/28/2018 11:48 AM, Li Yang wrote:
> > On Mon, Aug 27, 2018 at 8:57 PM Rob Herring <robh@kernel.org> wrote:
> >>
> >> In preparation to remove the node name pointer from struct device_node,
> >> convert printf users to use the %pOFn format specifier.
> >
> > Please forgive my ignorance, but what is this format specifier do
> > exactly? I cannot find anything listed in the printf specification
> > matching this. Is this something newly introduced?
> >
> > Leo
> >
>
> From Documentation/core-api/printk-formats.rst:

I was trying to find it in the standard c format specifier. :(
Thanks a lot for the pointer.

>
> kobjects
> --------
>
> ::
>
> %pOF[fnpPcCF]
>
>
> For printing kobject based structs (device nodes). Default behaviour is
> equivalent to %pOFf.
>
> - f - device node full_name
> - n - device node name
> - p - device node phandle
> - P - device node path spec (name + @unit)
> - F - device node flags
> - c - major compatible string
> - C - full compatible string
>
>
> -Tyrel
>