Re: [PATCH v1 1/3] string: Consolidate yesno() helpers under string.h hood

On Wed, 17 Feb 2021, Petr Mladek [off-list ref] wrote:

On Mon 2021-02-15 16:39:26, Andy Shevchenko wrote:

quoted

+Cc: Sakari and printk people

On Mon, Feb 15, 2021 at 4:28 PM Christian König
[off-list ref] wrote:

quoted

Am 15.02.21 um 15:21 schrieb Andy Shevchenko:

quoted

We have already few similar implementation and a lot of code that can benefit
of the yesno() helper.  Consolidate yesno() helpers under string.h hood.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Looks like a good idea to me, feel free to add an Acked-by: Christian
König [off-list ref] to the series.

Thanks.

quoted

But looking at the use cases for this, wouldn't it make more sense to
teach kprintf some new format modifier for this?

As a next step? IIRC Sakari has at some point the series converted
yesno and Co. to something which I don't remember the details of.

Guys, what do you think?

Honestly, I think that yesno() is much easier to understand than %py.
And %py[DOY] looks really scary. It has been suggested at
https://lore.kernel.org/lkml/YCqaNnr7ynRydczE@smile.fi.intel.com/#t (local)

Yes, enabledisable() is hard to parse but it is still self-explaining
and can be found easily by cscope. On the contrary, %pyD will likely
print some python code and it is not clear if it would be compatible
with v3. I am just kidding but you get the picture.

Personally I prefer %s and the functions.

I think the format specifiers have become unwieldy. I don't remember any
of the kernel specific ones by heart, I always look them up or just
cargo-cult. I think the fourcc format specifiers are a nice cleanup, but
I don't remember them either. I'd like something like %foo{yesno} where,
if you remember the %foo part, you could actually also remember the
rest.

But really if you get *any* version accepted, I'm not going to argue
against it, and you can disregard this as meaningless bikeshedding.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center