Patch "selftests/bpf: Test btf dump for struct with padding only fields" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    selftests/bpf: Test btf dump for struct with padding only fields

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     selftests-bpf-test-btf-dump-for-struct-with-padding-.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 154bd5ad9e9075482a730a971958023a546ed933
Author: Eduard Zingerman <eddyz87@xxxxxxxxx>
Date:   Sat Oct 1 13:44:25 2022 +0300

    selftests/bpf: Test btf dump for struct with padding only fields
    
    [ Upstream commit d503f1176b14f722a40ea5110312614982f9a80b ]
    
    Structures with zero regular fields but some padding constitute a
    special case in btf_dump.c:btf_dump_emit_struct_def with regards to
    newline before closing '}'.
    
    Signed-off-by: Eduard Zingerman <eddyz87@xxxxxxxxx>
    Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
    Link: https://lore.kernel.org/bpf/20221001104425.415768-2-eddyz87@xxxxxxxxx
    Stable-dep-of: ea2ce1ba99aa ("libbpf: Fix BTF-to-C converter's padding logic")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c
index 35c512818a56b..db5458da61826 100644
--- a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c
@@ -102,12 +102,21 @@ struct zone {
 	struct zone_padding __pad__;
 };
 
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct padding_wo_named_members {
+	long: 64;
+	long: 64;
+};
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+
 int f(struct {
 	struct padded_implicitly _1;
 	struct padded_explicitly _2;
 	struct padded_a_lot _3;
 	struct padded_cache_line _4;
 	struct zone _5;
+	struct padding_wo_named_members _6;
 } *_)
 {
 	return 0;