Re: [PATCH] powerpc: force inlining of csum_partial() to avoid multiple csum_partial() with GCC10

From: Segher Boessenkool
Date: Thu Oct 15 2020 - 09:30:51 EST


Hi!

On Thu, Oct 15, 2020 at 10:52:20AM +0000, Christophe Leroy wrote:
> With gcc9 I get:

<snip>

> With gcc10 I get:

<snip>

> gcc10 defines multiple versions of csum_partial() which are just
> an unconditionnal branch to __csum_partial().

It doesn't inline it, yes.

Could you open a GCC PR for this please?

> To enforce inlining of that branch to __csum_partial(),
> mark csum_partial() as __always_inline.

That should be fine of course, but it would be good if we could fix this
in the compiler :-)

Reviewed-by: Segher Boessenkool <segher@xxxxxxxxxxxxxxxxxxx>


Segher