Re: [PATCH v5 1/2] spi: Replace -ENOTSUPP with -EOPNOTSUPP in op checking

[Mika Westerberg]

On Fri, Nov 10, 2023 at 06:25:41PM +0800, AceLan Kao wrote:
> Hi Mika,
> 
> Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> 於 2023年11月10日 週五 下午1:37寫道：
> >
> > Hi,
> >
> > On Wed, Nov 08, 2023 at 05:43:02PM +0800, AceLan Kao wrote:
> > > From: "Chia-Lin Kao (AceLan)" <acelan.kao@xxxxxxxxxxxxx>
> > >
> > > No functional changes are introduced by this patch; it's a code cleanup
> > > to use the correct error code.
> >
> > Probably good to mention here that this affect only the "SPI MEM"
> > drivers and the core parts. Also you could explain here that the reaosn
> > for this is to make sure we use unified "operation not supported" return
> > code accross these.
> Got it.
> >
> > Does some kernel-doc need updating as well to make sure the future
> > drivers will return the correct one if they do not support given
> > optional operations?
> I have no idea where to add this, do you mean add a section in
> Documentation/spi/spi-summary.rst?

I mean in include/linux/spi/spi-mem.h kernel-doc of struct
spi_controller_mem_ops perhaps? Or kernel-doc of spi_mem_exec_op()?