lkml.org 
[lkml]   [2020]   [Feb]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 1/1] rpmsg: core: Add wildcard match for name service
On Thu, 13 Feb 2020 at 06:56, Arnaud POULIQUEN <arnaud.pouliquen@st.com> wrote:
>
> Hi Mathieu,
>
> Simple and elegant :)
> I tested it with my rpmsg_tty client which defines several IDs: work fine.

Perfect - many thanks for giving this a spin.

>
> Just a question regarding the comment else
> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
>
>
> On 2/12/20 10:12 PM, Mathieu Poirier wrote:
> > Adding the capability to supplement the base definition published
> > by an rpmsg_driver with a postfix description so that it is possible
> > for several entity to use the same service.
> >
> > Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
> > ---
> > drivers/rpmsg/rpmsg_core.c | 20 +++++++++++++++++++-
> > 1 file changed, 19 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
> > index e330ec4dfc33..bfd25978fa35 100644
> > --- a/drivers/rpmsg/rpmsg_core.c
> > +++ b/drivers/rpmsg/rpmsg_core.c
> > @@ -399,7 +399,25 @@ ATTRIBUTE_GROUPS(rpmsg_dev);
> > static inline int rpmsg_id_match(const struct rpmsg_device *rpdev,
> > const struct rpmsg_device_id *id)
> > {
> > - return strncmp(id->name, rpdev->id.name, RPMSG_NAME_SIZE) == 0;
> > + size_t len = min_t(size_t, strlen(id->name), RPMSG_NAME_SIZE);
> > +
> > + /*
> > + * Allow for wildcard matches. For example if rpmsg_driver::id_table
> > + * is:
> > + *
> > + * static struct rpmsg_device_id rpmsg_driver_sample_id_table[] = {
> > + * { .name = "rpmsg-client-sample" },
> > + * { },
> > + * }
> > + *
> > + * Then it is possible to support "rpmsg-client-sample*", i.e:
> > + * rpmsg-client-sample
> > + * rpmsg-client-sample_instance0
> > + * rpmsg-client-sample_instance1
> > + * ...
> > + * rpmsg-client-sample_instanceX
> > + */
> What about adding this as function documentation? i don't know if it makes sense
> for a static volatile function...

It didn't cross my mind because (and as you pointed out) it is a
static function. Let me know if you're keen on seeing this corrected
and I'll go for a respin.

Mathieu

>
> Regards
> Arnaud
>
> > + return strncmp(id->name, rpdev->id.name, len) == 0;
> > }
> >
> > /* match rpmsg channel and rpmsg driver */
> >

\
 
 \ /
  Last update: 2020-02-14 18:22    [W:0.063 / U:10.688 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site