Re: [EXTERNAL] Re: [PATCH v4 1/3] ALSA: hda/tas2781: Add tas2781 hda driver based on SPI

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Mon, May 06, 2024 at 07:44:41AM +0000, Xu, Baojun wrote:
> > From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> > Sent: 30 April 2024 21:45
> > On Tue, Apr 30, 2024 at 02: 58: 10PM +0200, Takashi Iwai wrote:
> > On Tue, Apr 30, 2024 at 02:58:10PM +0200, Takashi Iwai wrote:
> > > On Tue, 30 Apr 2024 09:25:42 +0200, Baojun Xu wrote:

...

> > > >  snd-hda-cs-dsp-ctls-objs :=                hda_cs_dsp_ctl.o
> > > >  snd-hda-scodec-component-objs :=   hda_component.o
> > > >  snd-hda-scodec-tas2781-i2c-objs := tas2781_hda_i2c.o
> > > > +snd-hda-scodec-tas2781-spi-y :=    tas2781_hda_spi.o tas2781_spi_fwlib.o
> > >
> > > A nitpicking: better to align with other lines (i.e. with *-objs
> > > instead of *-y).
> > 
> > I object this. The better approach is to have a precursor patch that switches
> > to y over objs (the latter is for user space code / tools).
> 
> I also do not fully understand why set it as "y", as you know, I follow
> CONFIG_SND_HDA_SCODEC_TAS2781_I2C, as it do not set to "y".

While you see no side effects, the 'objs' is reserved for user space, while 'y'
should be used in the kernel code. 

See Documentation/kbuild/makefiles.rst "Composite Host Programs", mind
the word "host" meaning.

-- 
With Best Regards,
Andy Shevchenko