On Sun, Sep 29, 2024 at 05:28:11PM +0800, Jiapeng Chong wrote:

Use of macro ARRAY_SIZE to calculate array size minimizes the redundant code and improves code reusability.

./tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c:98:34-35: WARNING: Use ARRAY_SIZE. ./tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c:93:29-30: WARNING: Use ARRAY_SIZE. ./tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c:101:34-35: WARNING: Use ARRAY_SIZE.

Reported-by: Abaci Robot abaci@linux.alibaba.com Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=11167 Signed-off-by: Jiapeng Chong jiapeng.chong@linux.alibaba.com

---

Changes in v2: -Modify the header file "kselftest.h" to "linux/kernel.h".

tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c b/tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c index a18d3680fb16..7534014279ca 100644 --- a/tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c +++ b/tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c @@ -7,6 +7,7 @@ #include <sys/syscall.h> #include <bpf/libbpf.h> #include <bpf/btf.h> +#include <linux/kernel.h>

Hi Jiapeng,

I don't believe adding this header is needed, since ARRAY_SIZE is defined in bpf_utils.h and already pulled in by test_progs.h below. Maybe try without "#include <linux/kernel.h"> to check?

Take care, Tony

#include "test_progs.h" #include "test_btf.h" @@ -90,15 +91,15 @@ static void test_bad_local_id(void) attr.prog_type = BPF_TRACE_RAW_TP; attr.license = (__u64)"GPL"; attr.insns = (__u64)&insns;

• attr.insn_cnt = sizeof(insns) / sizeof(*insns);

• attr.insn_cnt = ARRAY_SIZE(insns); attr.log_buf = (__u64)log; attr.log_size = sizeof(log); attr.log_level = log_level; attr.func_info = (__u64)funcs;

• attr.func_info_cnt = sizeof(funcs) / sizeof(*funcs);

• attr.func_info_cnt = ARRAY_SIZE(funcs); attr.func_info_rec_size = sizeof(*funcs); attr.core_relos = (__u64)relos;

• attr.core_relo_cnt = sizeof(relos) / sizeof(*relos);

• attr.core_relo_cnt = ARRAY_SIZE(relos); attr.core_relo_rec_size = sizeof(*relos); prog_fd = sys_bpf_prog_load(&attr, sizeof(attr), 1); saved_errno = errno;

-- 2.32.0.3.g01195cf9f