[PATCH] samples/landlock: Bump ABI version to 8

[Mickaël Salaün]

Thanks, applied!

On Fri, Feb 20, 2026 at 05:06:27PM +0100, Günther Noack wrote:
> The sample tool should print a warning if it is not running on a
> kernel that provides the newest Landlock ABI version.
> 
> Link: https://lore.kernel.org/all/20260218.ufao5Vaefa2u@digikod.net/
> Suggested-by: Mickaël Salaün <mic at digikod.net>
> Signed-off-by: Günther Noack <gnoack3000 at gmail.com>
> ---
>  samples/landlock/sandboxer.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/samples/landlock/sandboxer.c b/samples/landlock/sandboxer.c
> index e7af02f98208..9f21088c0855 100644
> --- a/samples/landlock/sandboxer.c
> +++ b/samples/landlock/sandboxer.c
> @@ -299,7 +299,7 @@ static bool check_ruleset_scope(const char *const env_var,
>  
>  /* clang-format on */
>  
> -#define LANDLOCK_ABI_LAST 7
> +#define LANDLOCK_ABI_LAST 8
>  
>  #define XSTR(s) #s
>  #define STR(s) XSTR(s)
> @@ -436,7 +436,8 @@ int main(const int argc, char *const argv[], char *const *const envp)
>  		/* Removes LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON for ABI < 7 */
>  		supported_restrict_flags &=
>  			~LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON;
> -
> +		__attribute__((fallthrough));
> +	case 7:
>  		/* Must be printed for any ABI < LANDLOCK_ABI_LAST. */
>  		fprintf(stderr,
>  			"Hint: You should update the running kernel "
> -- 
> 2.52.0
> 
>