From: Feng Yang <yangf...@kylinos.cn>

The ARRAY_SIZE macro is more compact and more formal in linux source.

Signed-off-by: Feng Yang <yangf...@kylinos.cn>
---
 tools/testing/selftests/bpf/prog_tests/fexit_stress.c        | 3 ++-
 tools/testing/selftests/bpf/prog_tests/log_buf.c             | 5 +++--
 .../testing/selftests/bpf/prog_tests/module_fentry_shadow.c  | 3 ++-
 .../bpf/prog_tests/raw_tp_writable_reject_nbd_invalid.c      | 3 ++-
 .../selftests/bpf/prog_tests/raw_tp_writable_test_run.c      | 5 +++--
 tools/testing/selftests/bpf/prog_tests/tc_opts.c             | 2 +-
 tools/testing/selftests/bpf/prog_tests/unpriv_bpf_disabled.c | 3 ++-
 tools/testing/selftests/bpf/progs/syscall.c                  | 3 ++-
 tools/testing/selftests/bpf/progs/test_rdonly_maps.c         | 3 ++-
 tools/testing/selftests/bpf/progs/verifier_bits_iter.c       | 2 +-
 10 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_stress.c 
b/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
index 49b1ffc9af1f..14c91b6f1e83 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2019 Facebook */
 #include <test_progs.h>
+#include "bpf_util.h"
 
 void serial_test_fexit_stress(void)
 {
@@ -36,7 +37,7 @@ void serial_test_fexit_stress(void)
        for (i = 0; i < bpf_max_tramp_links; i++) {
                fexit_fd[i] = bpf_prog_load(BPF_PROG_TYPE_TRACING, NULL, "GPL",
                                            trace_program,
-                                           sizeof(trace_program) / 
sizeof(struct bpf_insn),
+                                           ARRAY_SIZE(trace_program),
                                            &trace_opts);
                if (!ASSERT_GE(fexit_fd[i], 0, "fexit load"))
                        goto out;
diff --git a/tools/testing/selftests/bpf/prog_tests/log_buf.c 
b/tools/testing/selftests/bpf/prog_tests/log_buf.c
index 0f7ea4d7d9f6..46611040dec3 100644
--- a/tools/testing/selftests/bpf/prog_tests/log_buf.c
+++ b/tools/testing/selftests/bpf/prog_tests/log_buf.c
@@ -5,6 +5,7 @@
 #include <bpf/btf.h>
 
 #include "test_log_buf.skel.h"
+#include "bpf_util.h"
 
 static size_t libbpf_log_pos;
 static char libbpf_log_buf[1024 * 1024];
@@ -143,11 +144,11 @@ static void bpf_prog_load_log_buf(void)
                BPF_MOV64_IMM(BPF_REG_0, 0),
                BPF_EXIT_INSN(),
        };
-       const size_t good_prog_insn_cnt = sizeof(good_prog_insns) / 
sizeof(struct bpf_insn);
+       const size_t good_prog_insn_cnt = ARRAY_SIZE(good_prog_insns);
        const struct bpf_insn bad_prog_insns[] = {
                BPF_EXIT_INSN(),
        };
-       size_t bad_prog_insn_cnt = sizeof(bad_prog_insns) / sizeof(struct 
bpf_insn);
+       size_t bad_prog_insn_cnt = ARRAY_SIZE(bad_prog_insns);
        LIBBPF_OPTS(bpf_prog_load_opts, opts);
        const size_t log_buf_sz = 1024 * 1024;
        char *log_buf;
diff --git a/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c 
b/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c
index aa9f67eb1c95..bea05f78de5f 100644
--- a/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c
+++ b/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c
@@ -4,6 +4,7 @@
 #include <bpf/btf.h>
 #include "bpf/libbpf_internal.h"
 #include "cgroup_helpers.h"
+#include "bpf_util.h"
 
 static const char *module_name = "bpf_testmod";
 static const char *symbol_name = "bpf_fentry_shadow_test";
@@ -100,7 +101,7 @@ void test_module_fentry_shadow(void)
                load_opts.attach_btf_obj_fd = btf_fd[i];
                prog_fd[i] = bpf_prog_load(BPF_PROG_TYPE_TRACING, NULL, "GPL",
                                           trace_program,
-                                          sizeof(trace_program) / 
sizeof(struct bpf_insn),
+                                          ARRAY_SIZE(trace_program),
                                           &load_opts);
                if (!ASSERT_GE(prog_fd[i], 0, "bpf_prog_load"))
                        goto out;
diff --git 
a/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_reject_nbd_invalid.c 
b/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_reject_nbd_invalid.c
index e2f1445b0e10..216b0dfac0fe 100644
--- 
a/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_reject_nbd_invalid.c
+++ 
b/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_reject_nbd_invalid.c
@@ -2,6 +2,7 @@
 
 #include <test_progs.h>
 #include <linux/nbd.h>
+#include "bpf_util.h"
 
 void test_raw_tp_writable_reject_nbd_invalid(void)
 {
@@ -25,7 +26,7 @@ void test_raw_tp_writable_reject_nbd_invalid(void)
        );
 
        bpf_fd = bpf_prog_load(BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, NULL, 
"GPL v2",
-                              program, sizeof(program) / sizeof(struct 
bpf_insn),
+                              program, ARRAY_SIZE(program),
                               &opts);
        if (CHECK(bpf_fd < 0, "bpf_raw_tracepoint_writable load",
                  "failed: %d errno %d\n", bpf_fd, errno))
diff --git a/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_test_run.c 
b/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_test_run.c
index f4aa7dab4766..e3668058b7bb 100644
--- a/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_test_run.c
+++ b/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_test_run.c
@@ -2,6 +2,7 @@
 
 #include <test_progs.h>
 #include <linux/nbd.h>
+#include "bpf_util.h"
 
 /* NOTE: conflict with other tests. */
 void serial_test_raw_tp_writable_test_run(void)
@@ -24,7 +25,7 @@ void serial_test_raw_tp_writable_test_run(void)
        );
 
        int bpf_fd = bpf_prog_load(BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, NULL, 
"GPL v2",
-                                  trace_program, sizeof(trace_program) / 
sizeof(struct bpf_insn),
+                                  trace_program, ARRAY_SIZE(trace_program),
                                   &trace_opts);
        if (CHECK(bpf_fd < 0, "bpf_raw_tracepoint_writable loaded",
                  "failed: %d errno %d\n", bpf_fd, errno))
@@ -41,7 +42,7 @@ void serial_test_raw_tp_writable_test_run(void)
        );
 
        int filter_fd = bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, NULL, "GPL 
v2",
-                                     skb_program, sizeof(skb_program) / 
sizeof(struct bpf_insn),
+                                     skb_program, ARRAY_SIZE(skb_program),
                                      &skb_opts);
        if (CHECK(filter_fd < 0, "test_program_loaded", "failed: %d errno %d\n",
                  filter_fd, errno))
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_opts.c 
b/tools/testing/selftests/bpf/prog_tests/tc_opts.c
index 196abf223465..f77f604389aa 100644
--- a/tools/testing/selftests/bpf/prog_tests/tc_opts.c
+++ b/tools/testing/selftests/bpf/prog_tests/tc_opts.c
@@ -2384,7 +2384,7 @@ static int generate_dummy_prog(void)
                BPF_MOV64_IMM(BPF_REG_0, 0),
                BPF_EXIT_INSN(),
        };
-       const size_t prog_insn_cnt = sizeof(prog_insns) / sizeof(struct 
bpf_insn);
+       const size_t prog_insn_cnt = ARRAY_SIZE(prog_insns);
        LIBBPF_OPTS(bpf_prog_load_opts, opts);
        const size_t log_buf_sz = 256;
        char log_buf[log_buf_sz];
diff --git a/tools/testing/selftests/bpf/prog_tests/unpriv_bpf_disabled.c 
b/tools/testing/selftests/bpf/prog_tests/unpriv_bpf_disabled.c
index 0adf8d9475cb..472f4f9fa95f 100644
--- a/tools/testing/selftests/bpf/prog_tests/unpriv_bpf_disabled.c
+++ b/tools/testing/selftests/bpf/prog_tests/unpriv_bpf_disabled.c
@@ -7,6 +7,7 @@
 #include "test_unpriv_bpf_disabled.skel.h"
 
 #include "cap_helpers.h"
+#include "bpf_util.h"
 
 /* Using CAP_LAST_CAP is risky here, since it can get pulled in from
  * an old /usr/include/linux/capability.h and be < CAP_BPF; as a result
@@ -146,7 +147,7 @@ static void test_unpriv_bpf_disabled_negative(struct 
test_unpriv_bpf_disabled *s
                BPF_MOV64_IMM(BPF_REG_0, 0),
                BPF_EXIT_INSN(),
        };
-       const size_t prog_insn_cnt = sizeof(prog_insns) / sizeof(struct 
bpf_insn);
+       const size_t prog_insn_cnt = ARRAY_SIZE(prog_insns);
        LIBBPF_OPTS(bpf_prog_load_opts, load_opts);
        struct bpf_map_info map_info = {};
        __u32 map_info_len = sizeof(map_info);
diff --git a/tools/testing/selftests/bpf/progs/syscall.c 
b/tools/testing/selftests/bpf/progs/syscall.c
index 3d3cafdebe72..0f4dfb770c32 100644
--- a/tools/testing/selftests/bpf/progs/syscall.c
+++ b/tools/testing/selftests/bpf/progs/syscall.c
@@ -8,6 +8,7 @@
 #include <linux/btf.h>
 #include <string.h>
 #include <errno.h>
+#include "bpf_misc.h"
 
 char _license[] SEC("license") = "GPL";
 
@@ -119,7 +120,7 @@ int load_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..7035fb4d4165 100644
--- a/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
+++ b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
@@ -4,6 +4,7 @@
 #include <linux/ptrace.h>
 #include <linux/bpf.h>
 #include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
 
 const struct {
        unsigned a[4];
@@ -64,7 +65,7 @@ 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 */
diff --git a/tools/testing/selftests/bpf/progs/verifier_bits_iter.c 
b/tools/testing/selftests/bpf/progs/verifier_bits_iter.c
index 716113c2bce2..f4da4d508ddb 100644
--- a/tools/testing/selftests/bpf/progs/verifier_bits_iter.c
+++ b/tools/testing/selftests/bpf/progs/verifier_bits_iter.c
@@ -87,7 +87,7 @@ int bits_memalloc(void)
        int *bit;
 
        __builtin_memset(&data, 0xf0, sizeof(data)); /* 4 * 16 */
-       bpf_for_each(bits, bit, &data[0], sizeof(data) / sizeof(u64))
+       bpf_for_each(bits, bit, &data[0], ARRAY_SIZE(data))
                nr++;
        return nr;
 }
-- 
2.27.0


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