WARNING: line length of 84 exceeds 80 columns
#35: FILE: include/linux/ftrace.h:530:
+int unregister_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash);

WARNING: line length of 83 exceeds 80 columns
#43: FILE: include/linux/ftrace.h:563:
+int unregister_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)

WARNING: line length of 81 exceeds 80 columns
#66: FILE: kernel/trace/ftrace.c:6352:
+static struct ftrace_hash *hash_sub(struct ftrace_hash *a, struct ftrace_hash *b)

WARNING: line length of 83 exceeds 80 columns
#93: FILE: kernel/trace/ftrace.c:6379:
+int unregister_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)

WARNING: line length of 84 exceeds 80 columns
#95: FILE: kernel/trace/ftrace.c:6381:
+	struct ftrace_hash *new_hash = NULL, *filter_hash = NULL, *free_hash = NULL;

total: 0 errors, 5 warnings, 0 checks, 122 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 794a52f24b2e ("ftrace: Add unregister_ftrace_direct_hash function") 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, 5 warnings, 0 checks, 122 lines checked