==========
checkpatch - FAILED

CHECK: architecture specific defines should be avoided
#31: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:13:
+#if defined(__x86_64__) || defined(__i386__)

WARNING: line length of 88 exceeds 80 columns
#42: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:24:
+ * For example, for an array of 'short' (signed 2-byte elements), the SIB spec would be:

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#47: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:29:
+static volatile short array[] = {-1, -2, -3, -4};

CHECK: spaces preferred around that '%' (ctx:BxO)
#48: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:30:
+#define USDT_SIB_ARG_SPEC -2@(%%rdx,%%rax,2)
                               ^

CHECK: spaces preferred around that '%' (ctx:OxV)
#48: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:30:
+#define USDT_SIB_ARG_SPEC -2@(%%rdx,%%rax,2)
                                ^

ERROR: space required after that ',' (ctx:VxO)
#48: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:30:
+#define USDT_SIB_ARG_SPEC -2@(%%rdx,%%rax,2)
                                    ^

CHECK: spaces preferred around that '%' (ctx:OxO)
#48: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:30:
+#define USDT_SIB_ARG_SPEC -2@(%%rdx,%%rax,2)
                                     ^

CHECK: spaces preferred around that '%' (ctx:OxV)
#48: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:30:
+#define USDT_SIB_ARG_SPEC -2@(%%rdx,%%rax,2)
                                      ^

ERROR: space required after that ',' (ctx:VxV)
#48: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:30:
+#define USDT_SIB_ARG_SPEC -2@(%%rdx,%%rax,2)
                                          ^

ERROR: Macros with complex values should be enclosed in parentheses
#48: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:30:
+#define USDT_SIB_ARG_SPEC -2@(%%rdx,%%rax,2)

BUT SEE:

   do {} while (0) advice is over-stated in a few situations:

   The more obvious case is macros, like MODULE_PARM_DESC, invoked at
   file-scope, where C disallows code (it must be in functions).  See
   $exceptions if you have one to add by name.

   More troublesome is declarative macros used at top of new scope,
   like DECLARE_PER_CPU.  These might just compile with a do-while-0
   wrapper, but would be incorrect.  Most of these are handled by
   detecting struct,union,etc declaration primitives in $exceptions.

   Theres also macros called inside an if (block), which "return" an
   expression.  These cannot do-while, and need a ({}) wrapper.

   Enjoy this qualification while we work to improve our heuristics.

CHECK: architecture specific defines should be avoided
#58: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:48:
+#if defined(__x86_64__) || defined(__i386__)

CHECK: architecture specific defines should be avoided
#69: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:67:
+#if defined(__x86_64__) || defined(__i386__)

CHECK: Lines should not end with a '('
#74: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:72:
+	asm volatile(

CHECK: architecture specific defines should be avoided
#105: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:108:
+#if defined(__x86_64__) || defined(__i386__)

WARNING: line length of 93 exceeds 80 columns
#108: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:111:
+								0 /*self*/, "/proc/self/exe",

CHECK: Alignment should match open parenthesis
#108: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:111:
+	skel->links.usdt_sib = bpf_program__attach_usdt(skel->progs.usdt_sib,
+								0 /*self*/, "/proc/self/exe",

WARNING: line length of 91 exceeds 80 columns
#109: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:112:
+								"test", "usdt_sib", &opts);

CHECK: architecture specific defines should be avoided
#129: FILE: tools/testing/selftests/bpf/prog_tests/usdt.c:207:
+#if defined(__x86_64__) || defined(__i386__)

CHECK: Please don't use multiple blank lines
#150: FILE: tools/testing/selftests/bpf/progs/test_usdt.c:110:
 
+

total: 3 errors, 4 warnings, 12 checks, 146 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 4c1d70ee55be ("selftests/bpf: Enrich subtest_basic_usdt case in selftests to cover SIB handling logic") 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.