Re: [dpdk-dev] [PATCH] vfio: fix stdbool usage without include

[Christian Ehrhardt <christian.ehrhardt@canonical.com>]

On Tue, Jun 1, 2021 at 9:25 AM Thomas Monjalon <thomas@monjalon.net> wrote:
>
> 01/06/2021 07:42, Christian Ehrhardt:
> > This became visible by backporting the following for the 19.11 stable tree:
> >  c13ca4e8 "vfio: fix DMA mapping granularity for IOVA as VA"
> >
> > The usage of type bool in the vfio code would require "#include
> > <stdbool.h>", but rte_vfio.h has no direct paths to stdbool.h.
> > It happens that in eal_vfio_mp_sync.c it comes after "#include
> > <rte_log.h>".
> >
> > And rte_log.h since 20.05 includes stdbool since this change:
> >  241e67bfe "log: add API to check if a logtype can log in a given level"
> > and thereby masks the issue in >20.05.
> >
> > It should be safe to include stdbool.h from rte_vfio.h itself
> > to have bool present exactly when needed for the struct it defines
> > using that type.
>
> A line "Fixes" is missing for the record of the root cause.

Thanks Thomas for having a look,
it is slightly up for debate what exactly the root cause is here, but I think
c13ca4e81cac that introduced using bool without adding a header is the
right reference.

I'll send a v2 with that added

>
>


-- 
Christian Ehrhardt
Staff Engineer, Ubuntu Server
Canonical Ltd