Hi Chunyan, On Mon, Mar 9, 2020 at 9:43 AM Chunyan Zhang <zhang.lyra@xxxxxxxxx> wrote: > On Mon, 9 Mar 2020 at 16:01, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > > On Mon, Mar 9, 2020 at 2:18 AM Chunyan Zhang <zhang.lyra@xxxxxxxxx> wrote: > > > On Fri, 6 Mar 2020 at 20:41, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > > > > On Thu, Mar 5, 2020 at 11:33 AM Chunyan Zhang <zhang.lyra@xxxxxxxxx> wrote: > > > > > From: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx> > > > > > > > > > > Remove the dependency with ARCH_SPRD from sprd serial/console Kconfig-s, > > > > > since we want them can be built-in when ARCH_SPRD is set as 'm'. > > > > > > > > Why would you want a serial driver for a specific platform to be builtin, > > > > while all other platform support is modular? > > > > > > Oh, that's not this patch means. > > > > > > We just want serial driver can be builtin for any platform, so it > > > > What would be the benefit of the user to be able to have the SPRD serial > > driver built-in on any platform? AFAIU, it supports only Spreadtrum > > platforms. > > Right, it does support Spreadtrum platforms only indeed. > Like I said on the replay to patch 1/2, simply because I want serial > driver can be builtin all the time, no matter ARCH_SPRD is m or y. OK. So shouldn't the dependency become depends on ARCH_SPRD || ARCH_SPRD=m || COMPILE_TEST instead, to avoid asking the question when you're not building a kernel plus modules for Spreadtrum platforms? > > > should not depend on a config which can be set as 'm' (i.e. ARCH_SPRD) > > > , otherwise if the config was set as 'm', the serial driver can't be > > > selected as 'y' then. > > > > I ask about that as a reply to PATCH 1/2. > > > > > That's what I mean. > > > > > > > --- a/drivers/tty/serial/Kconfig > > > > > +++ b/drivers/tty/serial/Kconfig > > > > > @@ -1452,7 +1452,6 @@ config SERIAL_MEN_Z135 > > > > > > > > > > config SERIAL_SPRD > > > > > tristate "Support for Spreadtrum serial" > > > > > - depends on ARCH_SPRD > > > > > select SERIAL_CORE > > > > > help > > > > > This enables the driver for the Spreadtrum's serial. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds