[PATCH v0] selftests/bpf: replace manual array size calc with ARRAYSIZE.

[Mahmoud Maatuq <mahmoudmatook.mm@xxxxxxxxx>]

fixes coccinelle warnings due to manual calculation of array size.

Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm@xxxxxxxxx>
---
 tools/testing/selftests/bpf/progs/syscall.c          | 6 +++++-
 tools/testing/selftests/bpf/progs/test_rdonly_maps.c | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/syscall.c b/tools/testing/selftests/bpf/progs/syscall.c
index e550f728962d..9cc25d93c601 100644
--- a/tools/testing/selftests/bpf/progs/syscall.c
+++ b/tools/testing/selftests/bpf/progs/syscall.c
@@ -27,6 +27,10 @@ struct args {
 	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \
 	BTF_INT_ENC(encoding, bits_offset, bits)
 
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
+#endif
+
 static int btf_load(void)
 {
 	struct btf_blob {
@@ -82,7 +86,7 @@ int bpf_prog(struct args *ctx)
 	static __u64 value = 34;
 	static union bpf_attr prog_load_attr = {
 		.prog_type = BPF_PROG_TYPE_XDP,
-		.insn_cnt = sizeof(insns) / sizeof(insns[0]),
+		.insn_cnt = ARRAY_SIZE(insns),
 	};
 	int ret;
 
diff --git a/tools/testing/selftests/bpf/progs/test_rdonly_maps.c b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
index fc8e8a34a3db..7431936ab26c 100644
--- a/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
+++ b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
@@ -21,6 +21,10 @@ struct {
 	unsigned sum;
 } res = {};
 
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
+#endif
+
 SEC("raw_tracepoint/sys_enter:skip_loop")
 int skip_loop(struct pt_regs *ctx)
 {
@@ -64,7 +68,7 @@ int full_loop(struct pt_regs *ctx)
 {
 	/* prevent compiler to optimize everything out */
 	unsigned * volatile p = (void *)&rdonly_values.a;
-	int i = sizeof(rdonly_values.a) / sizeof(rdonly_values.a[0]);
+	int i = ARRAY_SIZE(rdonly_values.a);
 	unsigned iters = 0, sum = 0;
 
 	/* validate verifier can allow full loop as well */
-- 
2.34.1