[driver-core:tty-test 9/9] drivers/tty/tty_buffer.c:604:40: error: use of undeclared identifier 'TTY_LOCK_SLAVE'

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git tty-test
head:   bb57c5de81c6feaad869acce7c38b1049115ac75
commit: bb57c5de81c6feaad869acce7c38b1049115ac75 [9/9] tty: move some internal tty lock enums and functions out of tty.h
config: s390-randconfig-r032-20210407 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project c060945b23a1c54d4b2a053ff4b093a2277b303d)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/commit/?id=bb57c5de81c6feaad869acce7c38b1049115ac75
        git remote add driver-core https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git
        git fetch --no-tags driver-core tty-test
        git checkout bb57c5de81c6feaad869acce7c38b1049115ac75
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> drivers/tty/tty_buffer.c:604:40: error: use of undeclared identifier 'TTY_LOCK_SLAVE'
           lockdep_set_subclass(&port->buf.lock, TTY_LOCK_SLAVE);
                                                 ^
   1 error generated.
--
>> drivers/tty/tty_mutex.c:59:43: error: use of undeclared identifier 'TTY_LOCK_SLAVE'
           lockdep_set_subclass(&tty->legacy_mutex, TTY_LOCK_SLAVE);
                                                    ^
   1 error generated.


vim +/TTY_LOCK_SLAVE +604 drivers/tty/tty_buffer.c

1d1d14da12e79a Peter Hurley 2015-01-17  600  
1d1d14da12e79a Peter Hurley 2015-01-17  601  /* slave ptys can claim nested buffer lock when handling BRK and INTR */
1d1d14da12e79a Peter Hurley 2015-01-17  602  void tty_buffer_set_lock_subclass(struct tty_port *port)
1d1d14da12e79a Peter Hurley 2015-01-17  603  {
1d1d14da12e79a Peter Hurley 2015-01-17 @604  	lockdep_set_subclass(&port->buf.lock, TTY_LOCK_SLAVE);
1d1d14da12e79a Peter Hurley 2015-01-17  605  }
e176058f0de53c Peter Hurley 2015-10-17  606  

:::::: The code at line 604 was first introduced by commit
:::::: 1d1d14da12e79a6c05fbe1a975401f0f56c93316 pty: Fix buffer flush deadlock

:::::: TO: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip

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