[PATCH 0/5] add portable version of __builtin_add_overflow

[Andre Muezerie]

On Thu, Jan 02, 2025 at 03:51:55PM -0800, Stephen Hemminger wrote:
> On Thu,  2 Jan 2025 14:32:43 -0800
> Andre Muezerie <andremue at linux.microsoft.com> wrote:
> 
> > __builtin_add_overflow is gcc specific. There's a need for a portable
> > version that can also be used with other compilers.
> > 
> > Andre Muezerie (5):
> >   maintainers: add portable version of __builtin_add_overflow
> >   lib/eal: add portable version of __builtin_add_overflow
> >   doc/api: add portable version of __builtin_add_overflow
> >   drivers/net: use portable version of __builtin_add_overflow
> >   app/test: add tests for portable versions of __builtin_add_overflow
> > 
> >  MAINTAINERS                    |   1 +
> >  app/test/meson.build           |   1 +
> >  app/test/test_math.c           | 125 +++++++++++++++++++++++++++++++++
> >  doc/api/doxy-api-index.md      |   1 +
> >  drivers/net/ice/base/ice_nvm.c |   9 ++-
> >  lib/eal/include/meson.build    |   1 +
> >  lib/eal/include/rte_math.h     |  42 +++++++++++
> >  7 files changed, 175 insertions(+), 5 deletions(-)
> >  create mode 100644 app/test/test_math.c
> >  create mode 100644 lib/eal/include/rte_math.h
> > 
> > --
> > 2.47.0.vfs.0.3
> > 
> 
> You should add _builtin_add_overflow into the checkpatch naughty list.
> Or maybe all the _builtin_XXX functions?

Absolutely! Let me add that for a v2 series.