On Tue, 03 Mar 2020, Matt Roper <[email protected]> wrote:
> On Tue, Mar 03, 2020 at 05:25:21PM +0200, Jani Nikula wrote:
>> On Tue, 03 Mar 2020, Aditya Swarup <[email protected]> wrote:
>> > - struct lrc_timestamp data;
>> > + struct lrc_timestamp data = { 0 };
>>
>> {} is preferred over {0}.
>
> Is there a reference for this (e.g., in the kernel coding style)? I
> thought this came up a couple years ago and the consensus was the other
> way, although I could be misremembering. Unless it's changed in a
> recent standard, I think {} is only legal in C++, so using it in C code
> is a gcc-ism?
Both are widely used in the kernel. I think we've mostly converged to {}
in i915. Yes, it's a gcc-ism in C code, but the kernel is gcc, not
standard C.
I can't find a reference right now, but ISTR there are some warnings
issued in some cases with the {0} initializer, depending on the struct
and perhaps on the compiler.
Anyway, we're 71 to 9 in favor of {} in i915, so please go with that.
BR,
Jani.
--
Jani Nikula, Intel Open Source Graphics Center
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