[LTP] [PATCH v4 1/2] pty04: Use guarded buffers for transmission

[Petr Vorel <pvorel@suse.cz>]

Hi Jan,

> > > > Probably the best thing todo for now is to remove the test before the
> > > > release as this requires some more investigation.

> > > We can keep it in tree, I'd just disable it in runtest file(s), so it's not
> > > run by default.


> > But we still facing the compiled errors in the old kernels, that will break
> > the LTP build in the compiling phase.

> I see, that will fail on anything older than 4.10. I don't have strong
> preference how to deal with that, just want to avoid running pty04 for now.

> diff --git a/testcases/kernel/pty/pty04.c b/testcases/kernel/pty/pty04.c
> index eaf172504a64..55923a0af006 100644
> --- a/testcases/kernel/pty/pty04.c
> +++ b/testcases/kernel/pty/pty04.c
> @@ -38,7 +38,10 @@
>  #include "tst_buffers.h"
>  #include "config.h"

> -#if defined(HAVE_LINUX_IF_PACKET_H) && defined(HAVE_LINUX_IF_ETHER_H)
> +#include <linux/version.h>
Shouldn't we also check for <linux/version.h> with autotools? Or are kernel
headers mandatory for LTP build?

> +
> +#if defined(HAVE_LINUX_IF_PACKET_H) && defined(HAVE_LINUX_IF_ETHER_H) \
> +       && LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0)

>  #include <linux/if_packet.h>
>  #include <linux/if_ether.h>
> @@ -373,6 +376,6 @@ static struct tst_test test = {

>  #else

> -TST_TEST_TCONF("Need <linux/if_packet.h> and <linux/if_ether.h>");
> +TST_TEST_TCONF("Need <linux/if_packet.h> and <linux/if_ether.h> and 4.10+");

+1.

BTW, why this tests requires 4.10 for runtime?


Kind regards,
Petr