linux-kernel - [PATCH bpf-next] libbpf: Change bpf_program__set_extra_flags to bpf_program__set

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Date:   Fri, 19 Nov 2021 19:00:35 +0100
From:   Florent Revest <revest@...omium.org>
To:     bpf@...r.kernel.org
Cc:     andrii@...nel.org, kpsingh@...nel.org, jackmanb@...gle.com,
        linux-kernel@...r.kernel.org, Florent Revest <revest@...omium.org>
Subject: [PATCH bpf-next] libbpf: Change bpf_program__set_extra_flags to bpf_program__set_flags

bpf_program__set_extra_flags has just been introduced so we can still
change it without breaking users.

This new interface is a bit more flexible (for example if someone wants
to clear a flag).

Signed-off-by: Florent Revest <revest@...omium.org>
---
 tools/lib/bpf/libbpf.c                        | 4 ++--
 tools/lib/bpf/libbpf.h                        | 2 +-
 tools/lib/bpf/libbpf.map                      | 2 +-
 tools/testing/selftests/bpf/testing_helpers.c | 4 +++-
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index de7e09a6b5ec..fa164cdbf3c9 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -8296,12 +8296,12 @@ __u32 bpf_program__flags(const struct bpf_program *prog)
 	return prog->prog_flags;
 }
 
-int bpf_program__set_extra_flags(struct bpf_program *prog, __u32 extra_flags)
+int bpf_program__set_flags(struct bpf_program *prog, __u32 flags)
 {
 	if (prog->obj->loaded)
 		return libbpf_err(-EBUSY);
 
-	prog->prog_flags |= extra_flags;
+	prog->prog_flags = flags;
 	return 0;
 }
 
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 4ec69f224342..b9900d9680d6 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -494,7 +494,7 @@ bpf_program__set_expected_attach_type(struct bpf_program *prog,
 				      enum bpf_attach_type type);
 
 LIBBPF_API __u32 bpf_program__flags(const struct bpf_program *prog);
-LIBBPF_API int bpf_program__set_extra_flags(struct bpf_program *prog, __u32 extra_flags);
+LIBBPF_API int bpf_program__set_flags(struct bpf_program *prog, __u32 flags);
 
 LIBBPF_API int
 bpf_program__set_attach_target(struct bpf_program *prog, int attach_prog_fd,
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index 6a59514a48cf..61ae2e0ab345 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -400,7 +400,7 @@ LIBBPF_0.6.0 {
 		bpf_program__flags;
 		bpf_program__insn_cnt;
 		bpf_program__insns;
-		bpf_program__set_extra_flags;
+		bpf_program__set_flags;
 		btf__add_btf;
 		btf__add_decl_tag;
 		btf__add_type_tag;
diff --git a/tools/testing/selftests/bpf/testing_helpers.c b/tools/testing/selftests/bpf/testing_helpers.c
index 52c2f24e0898..0f1c37ac6f2c 100644
--- a/tools/testing/selftests/bpf/testing_helpers.c
+++ b/tools/testing/selftests/bpf/testing_helpers.c
@@ -91,6 +91,7 @@ int bpf_prog_test_load(const char *file, enum bpf_prog_type type,
 	struct bpf_object_load_attr attr = {};
 	struct bpf_object *obj;
 	struct bpf_program *prog;
+	__u32 flags;
 	int err;
 
 	obj = bpf_object__open(file);
@@ -106,7 +107,8 @@ int bpf_prog_test_load(const char *file, enum bpf_prog_type type,
 	if (type != BPF_PROG_TYPE_UNSPEC)
 		bpf_program__set_type(prog, type);
 
-	bpf_program__set_extra_flags(prog, BPF_F_TEST_RND_HI32);
+	flags = bpf_program__flags(prog) | BPF_F_TEST_RND_HI32;
+	bpf_program__set_flags(prog, flags);
 
 	attr.obj = obj;
 	attr.log_level = extra_prog_load_log_flags;
-- 
2.34.0.rc2.393.gf8c9666880-goog