checkpatch: Don't check for mutex_trylock_recursive()

mutex_trylock_recursive() has been removed from the tree, there is no
need to check for it.

Remove traces of mutex_trylock_recursive()'s existence.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210210085248.219210-3-bigeasy@linutronix.de

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 92e888e..15f7f4f 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -7069,12 +7069,6 @@ sub process {
                        }
                }
 
-# check for mutex_trylock_recursive usage
-               if ($line =~ /mutex_trylock_recursive/) {
-                       ERROR("LOCKING",
-                             "recursive locking is bad, do not use this ever.\n" . $herecurr);
-               }
-
 # check for lockdep_set_novalidate_class
                if ($line =~ /^.\s*lockdep_set_novalidate_class\s*\(/ ||
                    $line =~ /__lockdep_no_validate__\s*\)/ ) {