Re: [PATCH 07/24] thunderbolt: Convert switch to a device

From: Mika Westerberg
Date: Fri May 19 2017 - 04:21:10 EST


On Thu, May 18, 2017 at 07:49:21PM +0300, Andy Shevchenko wrote:
> On Thu, May 18, 2017 at 5:38 PM, Mika Westerberg
> <mika.westerberg@xxxxxxxxxxxxxxx> wrote:
> > Thunderbolt domain consists of switches that are connected to each
> > other, forming a bus. This will convert each switch into a real Linux
> > device structure and adds them to the domain. The advantage here is
> > that we get all the goodies from the driver core, like reference
> > counting and sysfs hierarchy for free.
> >
> > Also expose device identification information to the userspace via new
> > sysfs attributes.
> >
> > In order to support internal connection manager (ICM) we separate switch
> > configuration into its own function (tb_switch_configure()) which is
> > only called by the existing native connection manager implementation
> > used on Macs.
> >
>
> Couple of nits below.
>
> > +
> > + return sw;
> > +err:
>
> Perhaps
> err_free_sw_ports:
> ?

Works for me :)

> > + kfree(sw->ports);
> > + kfree(sw);
> > + return NULL;
> > +}
>
> > + /* upload configuration */
> > + ret = tb_sw_write(sw, 1 + (u32 *) &sw->config, TB_CFG_SWITCH, 1, 3);
>
> Extra space before &.

This comes from the original code but I'll change it.

> > + if (ret)
> > + return ret;
>
> --
> With Best Regards,
> Andy Shevchenko