From: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> commit 1ec5ee8c8a5a65ea377f8bea64bf4d5b743f6f79 upstream. Kernel Test Robot complains about passing zero to PTR_ERR for the said line, suppress it by using PTR_ERR_OR_ZERO. Fixes: c0a5a21c25f3 ("bpf: Allow storing referenced kptr in map") Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx> Link: https://lore.kernel.org/bpf/20220521132620.1976921-1-memxor@xxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- kernel/bpf/verifier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -5327,7 +5327,7 @@ static int process_kptr_func(struct bpf_ return -EINVAL; } if (!map_value_has_kptrs(map_ptr)) { - ret = PTR_ERR(map_ptr->kptr_off_tab); + ret = PTR_ERR_OR_ZERO(map_ptr->kptr_off_tab); if (ret == -E2BIG) verbose(env, "map '%s' has more than %d kptr\n", map_ptr->name, BPF_MAP_VALUE_OFF_MAX);