WARNING: Missing a blank line after declarations
#35: FILE: kernel/bpf/btf.c:8386:
+			unsigned int timeout = 1000;
+			while (refcount_read(&btf_mod->btf->refcnt) > 1

CHECK: Logical continuations should be on the previous line
#36: FILE: kernel/bpf/btf.c:8387:
+			while (refcount_read(&btf_mod->btf->refcnt) > 1
+			&& timeout > 0 ) {

ERROR: space prohibited before that close parenthesis ')'
#36: FILE: kernel/bpf/btf.c:8387:
+			&& timeout > 0 ) {

WARNING: msleep < 20ms can sleep for up to 20ms; see function description of msleep().
#37: FILE: kernel/bpf/btf.c:8388:
+				msleep(1);

total: 1 errors, 2 warnings, 1 checks, 13 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 54d4a35e490e ("bpf: Fix BTF module cleanup race condition in struct_ops") 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.