WARNING: line length of 81 exceeds 80 columns
#86: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:52:
+ * verification failures if verified with the rest of asan_test_buddy_uaf_single.

CHECK: spaces preferred around that '*' (ctx:WxV)
#88: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:54:
+__weak int asan_test_buddy_byte(u8 __arena __arg_arena *mem, int i, bool freed)
                                                        ^

CHECK: Alignment should match open parenthesis
#94: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:60:
+	if (freed && BUDDY_HEADER_OFF <= i &&
+		i < BUDDY_HEADER_OFF + sizeof(struct buddy_header))

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#143: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:109:
+	volatile u8 mem[48];

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#149: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:115:
+	volatile struct buddy_blob __arena *blob;

WARNING: Prefer ARRAY_SIZE(sizes)
#191: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:157:
+	for (i = zero; i < sizeof(sizes) / sizeof(sizes[0]) && can_loop; i++) {

CHECK: Alignment should match open parenthesis
#195: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:161:
+			arena_stdout("%s:%d Failed for size %lu", __func__,
+				   __LINE__, sizes[i]);

WARNING: Prefer ARRAY_SIZE(sizes)
#222: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:188:
+	for (i = zero; i < sizeof(sizes) / sizeof(sizes[0]) && can_loop; i++) {

CHECK: Alignment should match open parenthesis
#226: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:192:
+			arena_stdout("%s:%d Failed for size %lu", __func__,
+				   __LINE__, sizes[i]);

CHECK: Alignment should match open parenthesis
#257: FILE: tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c:223:
+			arena_stdout("%s:%d Failed on iteration %d", __func__,
+				   __LINE__, i);

WARNING: line length of 87 exceeds 80 columns
#301: FILE: tools/testing/selftests/bpf/libarena/selftests/st_buddy.bpf.c:21:
+size_t __arena alloc_multiple_sizes[] = { 3, 17, 1025, 129, 16350, 333, 9, 517, 2099 };

CHECK: Alignment should match open parenthesis
#437: FILE: tools/testing/selftests/bpf/libarena/selftests/st_buddy.bpf.c:157:
+				arena_stdout("%s:%d %lx %u vs %u", __func__,
+					   __LINE__, (uintptr_t)&mem[j],

WARNING: line length of 81 exceeds 80 columns
#464: FILE: tools/testing/selftests/bpf/libarena/selftests/st_buddy.bpf.c:184:
+			arena_stdout("alignment test: alloc failed for size %lu",

CHECK: Alignment should match open parenthesis
#465: FILE: tools/testing/selftests/bpf/libarena/selftests/st_buddy.bpf.c:185:
+			arena_stdout("alignment test: alloc failed for size %lu",
+				   alignment_sizes[i]);

CHECK: Lines should not end with a '('
#472: FILE: tools/testing/selftests/bpf/libarena/selftests/st_buddy.bpf.c:192:
+			arena_stdout(

CHECK: Alignment should match open parenthesis
#509: FILE: tools/testing/selftests/bpf/prog_tests/libarena.c:14:
+static void run_libarena_test(struct libarena *skel, struct bpf_program *prog,
+		const char *name)

WARNING: line length of 88 exceeds 80 columns
#514: FILE: tools/testing/selftests/bpf/prog_tests/libarena.c:19:
+		ret = libarena_run_prog(bpf_program__fd(skel->progs.arena_buddy_reset));

CHECK: Blank lines aren't necessary before a close brace '}'
#523: FILE: tools/testing/selftests/bpf/prog_tests/libarena.c:28:
+
+}

WARNING: line length of 86 exceeds 80 columns
#542: FILE: tools/testing/selftests/bpf/prog_tests/libarena.c:47:
+	ret = libarena_run_prog_args(bpf_program__fd(skel->progs.arena_alloc_reserve),

CHECK: Alignment should match open parenthesis
#543: FILE: tools/testing/selftests/bpf/prog_tests/libarena.c:48:
+	ret = libarena_run_prog_args(bpf_program__fd(skel->progs.arena_alloc_reserve),
+			&args, sizeof(args));

CHECK: Alignment should match open parenthesis
#583: FILE: tools/testing/selftests/bpf/prog_tests/libarena_asan.c:16:
+static void run_libarena_asan_test(struct libarena_asan *skel,
+		struct bpf_program *prog, const char *name)

WARNING: line length of 88 exceeds 80 columns
#588: FILE: tools/testing/selftests/bpf/prog_tests/libarena_asan.c:21:
+		ret = libarena_run_prog(bpf_program__fd(skel->progs.arena_buddy_reset));

WARNING: line length of 86 exceeds 80 columns
#614: FILE: tools/testing/selftests/bpf/prog_tests/libarena_asan.c:47:
+	ret = libarena_run_prog_args(bpf_program__fd(skel->progs.arena_alloc_reserve),

CHECK: Alignment should match open parenthesis
#615: FILE: tools/testing/selftests/bpf/prog_tests/libarena_asan.c:48:
+	ret = libarena_run_prog_args(bpf_program__fd(skel->progs.arena_alloc_reserve),
+			&args, sizeof(args));

CHECK: Lines should not end with a '('
#619: FILE: tools/testing/selftests/bpf/prog_tests/libarena_asan.c:52:
+	ret = libarena_asan_init(

WARNING: void function return statements are not generally useful
#657: FILE: tools/testing/selftests/bpf/prog_tests/libarena_asan.c:90:
+	return;
+}

total: 0 errors, 12 warnings, 14 checks, 606 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 4b0d2ac1b8ae ("selftests/bpf: Add selftests for libarena buddy allocator") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 12 warnings, 14 checks, 606 lines checked