[PATCH bpf-next v3 3/4] selftests/bpf: don't mask result of bpf_csum_diff() in test_verifier

Puranjay Mohan
2024-10-26T12:54:21Z

The bpf_csum_diff() helper has been fixed to return a 16-bit value for
all archs, so now we don't need to mask the result.

This commit is basically reverting the below:

commit 6185266c5a85 ("selftests/bpf: Mask bpf_csum_diff() return value
to 16 bits in test_verifier")

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
---
tools/testing/selftests/bpf/progs/verifier_array_access.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/verifier_array_access.c b/tools/testing/selftests/bpf/progs/verifier_array_access.c
index 95d7ecc12963b..4195aa824ba55 100644
--- a/tools/testing/selftests/bpf/progs/verifier_array_access.c
+++ b/tools/testing/selftests/bpf/progs/verifier_array_access.c
@@ -368,8 +368,7 @@ __naked void a_read_only_array_2_1(void)
r4 = 0; \
r5 = 0; \
call %[bpf_csum_diff]; \
-l0_%=: r0 &= 0xffff; \
- exit; \
+l0_%=: exit; \
" :
: __imm(bpf_csum_diff),
__imm(bpf_map_lookup_elem),
--
2.40.1