[PATCH bpf-next v2 1/4] libarena: remove in-code licenses

[Emil Tsalapatis <emil@etsalapatis.com>]

The libarena code currently specifies a license section in multiple
locations. These sections are a) inaccurate, since the license is
actually Dual BSD/GPL, not pure GPL, and b) superfluous, since the
files already have the license on them and libarena is distributed
as a source. Remove the license strings: The code that includes the
the libarena sources should be the one with the license section.

Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com>
---
 tools/testing/selftests/bpf/libarena/benchs/bench_malloc.bpf.c | 2 ++
 tools/testing/selftests/bpf/libarena/src/asan.bpf.c            | 2 --
 tools/testing/selftests/bpf/libarena/src/buddy.bpf.c           | 2 --
 tools/testing/selftests/bpf/libarena/src/common.bpf.c          | 2 --
 4 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/bpf/libarena/benchs/bench_malloc.bpf.c b/tools/testing/selftests/bpf/libarena/benchs/bench_malloc.bpf.c
index e06397dc9a40..636178f1fa6a 100644
--- a/tools/testing/selftests/bpf/libarena/benchs/bench_malloc.bpf.c
+++ b/tools/testing/selftests/bpf/libarena/benchs/bench_malloc.bpf.c
@@ -49,3 +49,5 @@ int bench_calloc(void)
 	__sync_add_and_fetch(&bench_hits, i);
 	return 0;
 }
+
+char _license[] SEC("license") = "Dual BSD/GPL";
diff --git a/tools/testing/selftests/bpf/libarena/src/asan.bpf.c b/tools/testing/selftests/bpf/libarena/src/asan.bpf.c
index de656b69d13a..8a0f06110606 100644
--- a/tools/testing/selftests/bpf/libarena/src/asan.bpf.c
+++ b/tools/testing/selftests/bpf/libarena/src/asan.bpf.c
@@ -532,5 +532,3 @@ __weak __noasan int asan_init(struct asan_init_args *args)
 #pragma clang attribute pop
 
 #endif /* BPF_ARENA_ASAN */
-
-__weak char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/libarena/src/buddy.bpf.c b/tools/testing/selftests/bpf/libarena/src/buddy.bpf.c
index 2490ab1396de..552ce87875e3 100644
--- a/tools/testing/selftests/bpf/libarena/src/buddy.bpf.c
+++ b/tools/testing/selftests/bpf/libarena/src/buddy.bpf.c
@@ -899,5 +899,3 @@ __weak int buddy_free(struct buddy __arena *buddy, void __arena *addr)
 
 	return ret;
 }
-
-__weak char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/libarena/src/common.bpf.c b/tools/testing/selftests/bpf/libarena/src/common.bpf.c
index d1af60b81838..d859bd538c52 100644
--- a/tools/testing/selftests/bpf/libarena/src/common.bpf.c
+++ b/tools/testing/selftests/bpf/libarena/src/common.bpf.c
@@ -85,5 +85,3 @@ __weak void arena_free(void __arena *ptr)
 {
 	buddy_free(&buddy, ptr);
 }
-
-char _license[] SEC("license") = "GPL";
-- 
2.52.0