==========
checkpatch - FAILED

WARNING: line length of 81 exceeds 80 columns
#41: FILE: net/sched/sch_cake.c:367:
+ * these values are calculated using eight Newton steps, using the implementation

ERROR: code indent should use tabs where possible
#52: FILE: net/sched/sch_cake.c:377:
+^I        ~0,         ~0, 3037000500, 2479700525,$

total: 1 errors, 1 warnings, 0 checks, 73 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 423090640a58 ("sch_cake: constify inverse square root cache") 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.