CHECK: No space is necessary after a cast
#64: FILE: include/linux/bitfield.h:161:
+		__BF_FIELD_CHECK(_mask, ((u16) 0U), _val,		 \

CHECK: No space is necessary after a cast
#91: FILE: include/linux/bitfield.h:188:
+		(BUILD_BUG_ON_ZERO(const_true((u64) (_mask) > U16_MAX)) + \

total: 0 errors, 0 warnings, 2 checks, 59 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 a314d187da4e ("bitfield: introduce HWORD_UPDATE bitfield macros") 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, 59 lines checked