CHECK: extern prototypes should be avoided in .h files
#37: FILE: arch/arm64/include/asm/barrier.h:223:
+extern bool arch_timer_evtstrm_available(void);

CHECK: No space is necessary after a cast
#56: FILE: arch/arm64/include/asm/barrier.h:242:
+	(typeof(*ptr)) VAL;						\

total: 0 errors, 0 warnings, 2 checks, 29 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 3c4af50e4d5f ("arm64: barrier: Add smp_cond_load_relaxed_timeout()") 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, 0 warnings, 2 checks, 29 lines checked