WARNING: line length of 85 exceeds 80 columns
#89: FILE: kernel/locking/rqspinlock.c:346:
+	val = atomic_cond_read_acquire(&lock->val, !(VAL & _Q_LOCKED_PENDING_MASK) ||

WARNING: line length of 85 exceeds 80 columns
#95: FILE: kernel/locking/rqspinlock.c:352:
+		 * If the tail is still pointing to us, then we are the final waiter,

WARNING: line length of 86 exceeds 80 columns
#96: FILE: kernel/locking/rqspinlock.c:353:
+		 * and are responsible for resetting the tail back to 0. Otherwise, if

WARNING: line length of 86 exceeds 80 columns
#97: FILE: kernel/locking/rqspinlock.c:354:
+		 * the cmpxchg operation fails, we signal the next waiter to take exit

WARNING: line length of 84 exceeds 80 columns
#102: FILE: kernel/locking/rqspinlock.c:359:
+		 * When performing cmpxchg for the whole word (NR_CPUS > 16k), it is

WARNING: line length of 86 exceeds 80 columns
#103: FILE: kernel/locking/rqspinlock.c:360:
+		 * possible locked/pending bits keep changing and we see failures even

WARNING: line length of 86 exceeds 80 columns
#104: FILE: kernel/locking/rqspinlock.c:361:
+		 * when we remain the head of wait queue. However, eventually, for the

WARNING: line length of 84 exceeds 80 columns
#105: FILE: kernel/locking/rqspinlock.c:362:
+		 * case without corruption, pending bit owner will unset the pending

WARNING: line length of 86 exceeds 80 columns
#106: FILE: kernel/locking/rqspinlock.c:363:
+		 * bit, and new waiters will queue behind us. This will leave the lock

WARNING: line length of 86 exceeds 80 columns
#107: FILE: kernel/locking/rqspinlock.c:364:
+		 * owner in charge, and it will eventually either set locked bit to 0,

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#129: 
new file mode 100644

WARNING: line length of 92 exceeds 80 columns
#161: FILE: kernel/locking/rqspinlock.h:28:
+static __always_inline bool try_cmpxchg_tail(struct qspinlock *lock, u32 tail, u32 new_tail)

total: 0 errors, 12 warnings, 0 checks, 118 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 f941c0d8ff9a ("rqspinlock: Protect waiters in queue from stalls") 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, 12 warnings, 0 checks, 118 lines checked