Re: [PATCH bpf-next v4 6/6] selftests/bpf: add sleepable timer tests

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On Tue, Mar 19, 2024 at 1:20 AM Eduard Zingerman <eddyz87@xxxxxxxxx> wrote:
>
> On Fri, 2024-03-15 at 15:29 +0100, Benjamin Tissoires wrote:
> > bpf_experimental.h and ../bpf_testmod/bpf_testmod_kfunc.h are both
> > including vmlinux.h, which is not compatible with including time.h
> > or bpf_tcp_helpers.h.
> >
> > So prevent vmlinux.h to be included, and override the few missing
> > types.
> >
> > Signed-off-by: Benjamin Tissoires <bentiss@xxxxxxxxxx>
>
> [...]
>
> > @@ -6,6 +6,14 @@
> >  #include <bpf/bpf_helpers.h>
> >  #include "bpf_tcp_helpers.h"
> >
> > +#define __VMLINUX_H__
> > +#define u32 __u32
> > +#define u64 __u64
> > +#include "bpf_experimental.h"
> > +struct prog_test_member1;
> > +#include "../bpf_testmod/bpf_testmod_kfunc.h"
> > +#undef __VMLINUX_H__
>
> Tbh, this looks very ugly.

heh :)

> Would it be possible to create a new tests file sleepable_timer.c
> and include bpf_experimental.h there, skipping time.h?

Sounds like an option, yeah :)

> It appears that for the new tests the only necessary definition from
> time.h is CLOCK_MONOTONIC.
>

Yeah, that #define should be the only one missing.

I'll try to come up with better tests in v5 :)

Cheers,
Benjamin






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