> On Sep 29, 2018, at 9:20 PM, Joe Perches <joe@xxxxxxxxxxx> wrote: > >> On Fri, 2018-09-28 at 16:01 +0200, Jason A. Donenfeld wrote: >> On Fri, Sep 28, 2018 at 4:00 PM Ard Biesheuvel >> <ard.biesheuvel@xxxxxxxxxx> wrote: >>> >>>> On 28 September 2018 at 15:59, Jason A. Donenfeld <Jason@xxxxxxxxx> wrote: >>>> On Fri, Sep 28, 2018 at 3:58 PM Ard Biesheuvel >>>> <ard.biesheuvel@xxxxxxxxxx> wrote: >>>>> >>>>>> On 28 September 2018 at 15:47, Jason A. Donenfeld <Jason@xxxxxxxxx> wrote: >>>>>> On Fri, Sep 28, 2018 at 10:49 AM Ard Biesheuvel >>>>>> <ard.biesheuvel@xxxxxxxxxx> wrote: >>>>>>>>> +typedef enum { >>>>>>>>> + HAVE_NO_SIMD = 1 << 0, >>>>>>>>> + HAVE_FULL_SIMD = 1 << 1, >>>>>>>>> + HAVE_SIMD_IN_USE = 1 << 31 >>>>>>>>> +} simd_context_t; >>>>>>>>> + >>>>>>> >>>>>>> Oh, and another thing (and I'm surprised checkpatch.pl didn't complain >>>>>>> about it): the use of typedef in new code is strongly discouraged. >>>>>>> This policy predates my involvement, so perhaps Joe can elaborate on >>>>>>> the rationale? >>>>>> >>>>>> In case it matters, the motivation for making this a typedef is I >>>>>> could imagine this at some point turning into a more complicated >>>>>> struct on certain platforms and that would make refactoring easier. I >>>>>> could just make it `struct simd_context` now with 1 member though... >>>>> >>>>> Yes that makes sense >>>> >>>> The rationale for it being a typedef or moving to a struct now? >>> >>> Yes just switch to a struct. >> >> Okay. No problem with that, but will wait to hear from Joe first. > > Why do you need to hear from me again? > > As far as I know, the only info about typedef avoidance are in > Documentation/process/coding-style.rst section 5. > > I personally prefer it with the typedef. If this were my code, I’d say the coding style is silly for opaque tiny structs like this.