Re: [PATCH] arch/x86/boot: sizeof macro

From: Ingo Molnar
Date: Fri Dec 29 2017 - 14:46:27 EST



* Andy Shevchenko <andy.shevchenko@xxxxxxxxx> wrote:

> On Fri, Dec 29, 2017 at 8:30 PM, Saidgani Musaev <cpu808694@xxxxxxxxx> wrote:
>
> No changelog, no explanation why...
> No SoB tag...
>
> > - ireg.cx = sizeof buf;
> > + ireg.cx = sizeof(buf);
>
> sizeof is operator, not a function.
> So, what are you trying to achieve?

That's true, but in the kernel coding style we use it as a function:

triton:~/tip> git grep 'sizeof(' | wc -l
116570

triton:~/tip> git grep 'sizeof [:alnum:]' | wc -l
177

Thanks,

Ingo