Hi harsha, [auto build test ERROR on staging/staging-testing] [also build test ERROR on v4.13-rc7 next-20170831] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/harsha/Staging-android-ion-ion-c-Using-WARN_ON-rather-than-BUG/20170901-160600 config: s390-allmodconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=s390 All errors (new ones prefixed by >>): In file included from include/linux/bug.h:4:0, from include/linux/mmdebug.h:4, from arch/s390/include/asm/cmpxchg.h:10, from arch/s390/include/asm/atomic.h:15, from include/linux/atomic.h:4, from include/linux/debug_locks.h:5, from include/linux/lockdep.h:25, from include/linux/spinlock_types.h:18, from include/linux/mutex.h:15, from include/linux/kernfs.h:13, from include/linux/sysfs.h:15, from include/linux/kobject.h:21, from include/linux/device.h:17, from drivers/staging/android/ion/ion.c:18: drivers/staging/android/ion/ion.c: In function 'ion_buffer_add': >> arch/s390/include/asm/bug.h:54:26: error: expected expression before ')' token int __ret_warn_on = !!(x); \ ^ drivers/staging/android/ion/ion.c:69:4: note: in expansion of macro 'WARN_ON' WARN_ON(); ^~~~~~~ -- In file included from include/linux/bug.h:4:0, from include/linux/mmdebug.h:4, from arch/s390/include/asm/cmpxchg.h:10, from arch/s390/include/asm/atomic.h:15, from include/linux/atomic.h:4, from include/linux/debug_locks.h:5, from include/linux/lockdep.h:25, from include/linux/spinlock_types.h:18, from include/linux/mutex.h:15, from include/linux/kernfs.h:13, from include/linux/sysfs.h:15, from include/linux/kobject.h:21, from include/linux/device.h:17, from drivers/staging//android/ion/ion.c:18: drivers/staging//android/ion/ion.c: In function 'ion_buffer_add': >> arch/s390/include/asm/bug.h:54:26: error: expected expression before ')' token int __ret_warn_on = !!(x); \ ^ drivers/staging//android/ion/ion.c:69:4: note: in expansion of macro 'WARN_ON' WARN_ON(); ^~~~~~~ vim +54 arch/s390/include/asm/bug.h a9df8e32 arch/s390/include/asm/bug.h Heiko Carstens 2010-01-13 52 c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 53 #define WARN_ON(x) ({ \ fd0cbdd3 include/asm-s390/bug.h Heiko Carstens 2007-08-02 @54 int __ret_warn_on = !!(x); \ c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 55 if (__builtin_constant_p(__ret_warn_on)) { \ c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 56 if (__ret_warn_on) \ b2be0527 arch/s390/include/asm/bug.h Ben Hutchings 2010-04-03 57 __WARN(); \ c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 58 } else { \ c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 59 if (unlikely(__ret_warn_on)) \ b2be0527 arch/s390/include/asm/bug.h Ben Hutchings 2010-04-03 60 __WARN(); \ c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 61 } \ c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 62 unlikely(__ret_warn_on); \ c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 63 }) c0007f1a include/asm-s390/bug.h Heiko Carstens 2007-04-27 64 :::::: The code at line 54 was first introduced by commit :::::: fd0cbdd378258fdf44eac5ea091256a4a665315b Fix WARN_ON() on bitfield ops for all other archs :::::: TO: Heiko Carstens <heiko.carstens@xxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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