CHECK: No space is necessary after a cast
#58: FILE: tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:379:
+	regs->r11 = (u64) -1;

WARNING: line length of 85 exceeds 80 columns
#141: FILE: tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:462:
+	return sysfs_create_bin_file(kernel_kobj, &bin_attr_bpf_testmod_uprobe_file);

CHECK: No space is necessary after a cast
#210: FILE: tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c:169:
+	return ret != n ? (int) ret : 0;

CHECK: No space is necessary after a cast
#216: FILE: tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c:175:
+	unsigned long *pb = (unsigned long *) &before;

CHECK: No space is necessary after a cast
#217: FILE: tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c:176:
+	unsigned long *pa = (unsigned long *) &after;

CHECK: spaces preferred around that '/' (ctx:VxV)
#218: FILE: tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c:177:
+	unsigned long cnt = sizeof(before)/sizeof(*pb);
 	                                  ^

CHECK: No space is necessary after a cast
#244: FILE: tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c:203:
+			ASSERT_EQ(pa[i], (__u64) -1, "r11");

WARNING: line length of 90 exceeds 80 columns
#247: FILE: tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c:206:
+			if (!ASSERT_EQ(pa[i], pb[i], "register before-after value check"))

WARNING: line length of 87 exceeds 80 columns
#248: FILE: tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c:207:
+				fprintf(stdout, "failed register offset %u\n", offset);

total: 0 errors, 3 warnings, 6 checks, 229 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 676df40256de ("selftests/bpf: Add uretprobe syscall test for regs changes") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE 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, 3 warnings, 6 checks, 229 lines checked