WARNING: please, no spaces at the start of a line
#30: FILE: tools/testing/selftests/bpf/uprobe_multi.c:104:
+    int poll = 0;$

WARNING: suspect code indent for conditional statements (8, 8)
#42: FILE: tools/testing/selftests/bpf/uprobe_multi.c:114:
+	if (!build_id_resident){
+        do {

ERROR: space required before the open brace '{'
#42: FILE: tools/testing/selftests/bpf/uprobe_multi.c:114:
+	if (!build_id_resident){

ERROR: code indent should use tabs where possible
#43: FILE: tools/testing/selftests/bpf/uprobe_multi.c:115:
+        do {$

WARNING: please, no spaces at the start of a line
#43: FILE: tools/testing/selftests/bpf/uprobe_multi.c:115:
+        do {$

WARNING: suspect code indent for conditional statements (8, 24)
#43: FILE: tools/testing/selftests/bpf/uprobe_multi.c:115:
+        do {
+			madvise(addr, page_sz, MADV_PAGEOUT);

ERROR: code indent should use tabs where possible
#46: FILE: tools/testing/selftests/bpf/uprobe_multi.c:118:
+            mincore(addr, page_sz, vec);$

WARNING: please, no spaces at the start of a line
#46: FILE: tools/testing/selftests/bpf/uprobe_multi.c:118:
+            mincore(addr, page_sz, vec);$

ERROR: code indent should use tabs where possible
#47: FILE: tools/testing/selftests/bpf/uprobe_multi.c:119:
+            if (!(vec[0] & 1))$

WARNING: please, no spaces at the start of a line
#47: FILE: tools/testing/selftests/bpf/uprobe_multi.c:119:
+            if (!(vec[0] & 1))$

ERROR: trailing whitespace
#48: FILE: tools/testing/selftests/bpf/uprobe_multi.c:120:
+                break;^I$

ERROR: code indent should use tabs where possible
#48: FILE: tools/testing/selftests/bpf/uprobe_multi.c:120:
+                break;^I$

WARNING: please, no spaces at the start of a line
#48: FILE: tools/testing/selftests/bpf/uprobe_multi.c:120:
+                break;^I$

WARNING: line length of 98 exceeds 80 columns
#49: FILE: tools/testing/selftests/bpf/uprobe_multi.c:121:
+			/* if page is still resident re-attempt MADV_POPULATE_READ/MADV_PAGEOUT */

ERROR: code indent should use tabs where possible
#52: FILE: tools/testing/selftests/bpf/uprobe_multi.c:124:
+            usleep(100);$

WARNING: please, no spaces at the start of a line
#52: FILE: tools/testing/selftests/bpf/uprobe_multi.c:124:
+            usleep(100);$

ERROR: space required after that close brace '}'
#53: FILE: tools/testing/selftests/bpf/uprobe_multi.c:125:
+		}while (poll < 500);

total: 8 errors, 9 warnings, 0 checks, 31 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.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

Commit 55b0195e4159 ("selftests/bpf: fix flaky build_id test") 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.