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: sparc64-randconfig-s032-20210407 (attached as .config) compiler: sparc64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-279-g6d5d9b42-dirty # 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=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sparc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
All errors (new ones prefixed by >>):
In file included from include/linux/spinlock.h:59,
from include/linux/wait.h:9,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from include/linux/tty.h:5,
from drivers/tty/tty_buffer.c:8:
drivers/tty/tty_buffer.c: In function 'tty_buffer_set_lock_subclass':
>> drivers/tty/tty_buffer.c:604:40: error: 'TTY_LOCK_SLAVE' undeclared (first
>> use in this function)
604 | lockdep_set_subclass(&port->buf.lock, TTY_LOCK_SLAVE);
| ^~~~~~~~~~~~~~
include/linux/lockdep.h:233:71: note: in definition of macro
'lockdep_set_subclass'
233 | lockdep_init_map_waits(&(lock)->dep_map, #lock,
(lock)->dep_map.key, sub,\
|
^~~
drivers/tty/tty_buffer.c:604:40: note: each undeclared identifier is
reported only once for each function it appears in
604 | lockdep_set_subclass(&port->buf.lock, TTY_LOCK_SLAVE);
| ^~~~~~~~~~~~~~
include/linux/lockdep.h:233:71: note: in definition of macro
'lockdep_set_subclass'
233 | lockdep_init_map_waits(&(lock)->dep_map, #lock,
(lock)->dep_map.key, sub,\
|
^~~
--
In file included from include/linux/spinlock.h:59,
from include/linux/wait.h:9,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from include/linux/tty.h:5,
from drivers/tty/tty_mutex.c:2:
drivers/tty/tty_mutex.c: In function 'tty_set_lock_subclass':
>> drivers/tty/tty_mutex.c:59:43: error: 'TTY_LOCK_SLAVE' undeclared (first use
>> in this function)
59 | lockdep_set_subclass(&tty->legacy_mutex, TTY_LOCK_SLAVE);
| ^~~~~~~~~~~~~~
include/linux/lockdep.h:233:71: note: in definition of macro
'lockdep_set_subclass'
233 | lockdep_init_map_waits(&(lock)->dep_map, #lock,
(lock)->dep_map.key, sub,\
|
^~~
drivers/tty/tty_mutex.c:59:43: note: each undeclared identifier is reported
only once for each function it appears in
59 | lockdep_set_subclass(&tty->legacy_mutex, TTY_LOCK_SLAVE);
| ^~~~~~~~~~~~~~
include/linux/lockdep.h:233:71: note: in definition of macro
'lockdep_set_subclass'
233 | lockdep_init_map_waits(&(lock)->dep_map, #lock,
(lock)->dep_map.key, sub,\
|
^~~
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for FRAME_POINTER
Depends on DEBUG_KERNEL && (M68K || UML || SUPERH) ||
ARCH_WANT_FRAME_POINTERS || MCOUNT
Selected by
- LATENCYTOP && DEBUG_KERNEL && STACKTRACE_SUPPORT && PROC_FS && !MIPS &&
!PPC && !S390 && !MICROBLAZE && !ARM && !ARC && !X86
- LOCKDEP && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && !MIPS && !PPC && !ARM
&& !S390 && !MICROBLAZE && !ARC && !X86
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 <pe...@hurleysoftware.com>
:::::: CC: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
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