WARNING: line length of 83 exceeds 80 columns
#66: FILE: tools/lib/bpf/usdt.bpf.h:216:
+		 * is in arg_spec->val_off, the scale factor is in arg_spec->scale.

WARNING: line length of 81 exceeds 80 columns
#70: FILE: tools/lib/bpf/usdt.bpf.h:220:
+		 * base address and the offset to get the final address. Finally,

WARNING: line length of 96 exceeds 80 columns
#74: FILE: tools/lib/bpf/usdt.bpf.h:224:
+		err = bpf_probe_read_kernel(&val, sizeof(val), (void *)ctx + arg_spec->reg_off);

WARNING: line length of 100 exceeds 80 columns
#77: FILE: tools/lib/bpf/usdt.bpf.h:227:
+		err = bpf_probe_read_kernel(&idx, sizeof(idx), (void *)ctx + arg_spec->idx_reg_off);

WARNING: line length of 89 exceeds 80 columns
#81: FILE: tools/lib/bpf/usdt.bpf.h:231:
+				(void *)val + idx * arg_spec->scale + arg_spec->val_off);

CHECK: Alignment should match open parenthesis
#81: FILE: tools/lib/bpf/usdt.bpf.h:231:
+		err = bpf_probe_read_user(&val, sizeof(val),
+				(void *)val + idx * arg_spec->scale + arg_spec->val_off);

WARNING: line length of 91 exceeds 80 columns
#122: FILE: tools/lib/bpf/usdt.c:1294:
+				arg_sz, &off, reg_name, idx_reg_name, &scale, &len) == 5 ||

CHECK: Alignment should match open parenthesis
#122: FILE: tools/lib/bpf/usdt.c:1294:
+	if (sscanf(arg_str, " %d @ %ld ( %%%15[^,] , %%%15[^,] , %d ) %n",
+				arg_sz, &off, reg_name, idx_reg_name, &scale, &len) == 5 ||

WARNING: line length of 85 exceeds 80 columns
#124: FILE: tools/lib/bpf/usdt.c:1296:
+				arg_sz, reg_name, idx_reg_name, &scale, &len) == 4 ||

CHECK: Alignment should match open parenthesis
#124: FILE: tools/lib/bpf/usdt.c:1296:
+		sscanf(arg_str, " %d @ ( %%%15[^,] , %%%15[^,] , %d ) %n",
+				arg_sz, reg_name, idx_reg_name, &scale, &len) == 4 ||

WARNING: line length of 83 exceeds 80 columns
#126: FILE: tools/lib/bpf/usdt.c:1298:
+				arg_sz, &off, reg_name, idx_reg_name, &len) == 4 ||

CHECK: Alignment should match open parenthesis
#126: FILE: tools/lib/bpf/usdt.c:1298:
+		sscanf(arg_str, " %d @ %ld ( %%%15[^,] , %%%15[^)] ) %n",
+				arg_sz, &off, reg_name, idx_reg_name, &len) == 4 ||

CHECK: Alignment should match open parenthesis
#128: FILE: tools/lib/bpf/usdt.c:1300:
+		sscanf(arg_str, " %d @ ( %%%15[^,] , %%%15[^)] ) %n",
+				arg_sz, reg_name, idx_reg_name, &len) == 3

total: 0 errors, 8 warnings, 5 checks, 131 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 1639f7209477 ("libbpf: fix USDT SIB argument handling causing unrecognized register error") 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, 8 warnings, 5 checks, 131 lines checked