[tip:WIP.sched/core 101/114] drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c:51:37: error: dereferencing pointer to incomplete type 'struct sighand_struct'

From: kbuild test robot
Date: Thu Feb 02 2017 - 07:40:06 EST

tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/core
head: a7fd62a2a53e181668849e0cb7262c69fd40f985
commit: 4062c957804a9f2d7eb7e2bfa5850e3efa55c944 [101/114] sched/headers, signals: Separate out task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h>
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 4062c957804a9f2d7eb7e2bfa5850e3efa55c944
# save the attached .config to linux build tree
make.cross ARCH=ia64

All error/warnings (new ones prefixed by >>):

In file included from include/linux/seqlock.h:35:0,
from include/linux/time.h:5,
from include/linux/stat.h:18,
from include/linux/module.h:10,
from drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c:34:
drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c: In function 'cfs_block_allsigs':
>> drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c:51:37: error: dereferencing pointer to incomplete type 'struct sighand_struct'
spin_lock_irqsave(&current->sighand->siglock, flags);
^
include/linux/spinlock.h:205:34: note: in definition of macro 'raw_spin_lock_irqsave'
flags = _raw_spin_lock_irqsave(lock); \
^~~~
>> drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c:51:2: note: in expansion of macro 'spin_lock_irqsave'
spin_lock_irqsave(&current->sighand->siglock, flags);
^~~~~~~~~~~~~~~~~

vim +51 drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c

d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 28 /*
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 29 * This file is part of Lustre, http://www.lustre.org/
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 30 * Lustre is a trademark of Sun Microsystems, Inc.
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 31 */
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 32
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 33 #define DEBUG_SUBSYSTEM S_LNET
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 @34 #include <linux/module.h>
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 35 #include <linux/kernel.h>
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 36 #include <linux/fs_struct.h>
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 37 #include <linux/sched.h>
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 38
9fdaf8c0b drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Greg Kroah-Hartman 2014-07-11 39 #include "../../../include/linux/libcfs/libcfs.h"
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 40
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 41 #if defined(CONFIG_KGDB)
e8fd99fd9 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Asaf Vertz 2015-02-09 42 #include <linux/kgdb.h>
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 43 #endif
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 44
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 45 sigset_t
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 46 cfs_block_allsigs(void)
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 47 {
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 48 unsigned long flags;
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 49 sigset_t old;
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 50
46ffc9343 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c James Simmons 2014-09-09 @51 spin_lock_irqsave(&current->sighand->siglock, flags);
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 52 old = current->blocked;
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 53 sigfillset(&current->blocked);
d7e09d039 drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c Peng Tao 2013-05-02 54 recalc_sigpending();

:::::: The code at line 51 was first introduced by commit
:::::: 46ffc934385860a127c04010f5f3ee225e06b87b staging/lustre: remove portals_compat25.h

:::::: TO: James Simmons <uja.ornl@xxxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

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