Re: [PATCHv2 bpf-next 1/3] bpf, tests: tweak endianness selection

[Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx>]

On (03/20/19 20:24), Alexei Starovoitov wrote:
> On Wed, Mar 20, 2019 at 09:53:33PM +0900, Sergey Senozhatsky wrote:
> > Not all compilers have __builtin_bswap16() and __builtin_bswap32(),
> > thus not all compilers are able to compile the following code:
> > 
> >         (__builtin_constant_p(x) ? \
> >                 ___constant_swab16(x) : __builtin_bswap16(x))
> > 
> > That's the reason why bpf_ntohl() doesn't work on GCC < 4.8, for
> > instance:
> 
> nack to fixes to support such old compilers.

Fair enough.

	-ss