On Sat, 18 Apr 2015 09:05:52 +0200 Paul Bolle <pebolle@xxxxxxxxxx> wrote: > On Fri, 2015-04-17 at 16:24 +0200, Alban Bedel wrote: > > > --- a/arch/mips/ath79/Kconfig > > +++ b/arch/mips/ath79/Kconfig > > > > +choice > > + prompt "Builtin devicetree selection" > > + default DTB_ATH79_NONE > > + help > > + Select the devicetree. > > + > > + config DTB_ATH79_NONE > > + bool "None" > > +endchoice > > This adds a choice block with one config entry. So what this achieves > is that DTB_ATH79_NONE will always be 'y', right? Besides I didn't > notice on a user of CONFIG_DTB_ATH79_NONE. So as far as I can see > this choice has no effect on the build. > > Why was this choice entry added? This menu is for boards that need a built-in DTB, as MIPS currently doesn't support appended DTBs it is the only way to load a DTB on boards stuck with a broken boot loader. But as no board has been added yet it only contain the entry for boards that don't need a built-in DTB, which do nothing as you pointed out. A board is then added in this menu in patch 14, for some reasons git send-email didn't send the whole serie at once :( Alban