Messages in this thread | | | Date | Wed, 24 May 2017 05:06:26 +0800 | From | kbuild test robot <> | Subject | [rcu:ms 2/2] mm/mlock.c:825:35: error: passing argument 1 of 'down_write_killable_mmap_sem' from incompatible pointer type |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git ms head: 49683159093b2bd63321b7e997e225a40fe5f3cd commit: 49683159093b2bd63321b7e997e225a40fe5f3cd [2/2] mm: Apply mmap_sem locking wrappers config: i386-tinyconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout 49683159093b2bd63321b7e997e225a40fe5f3cd # save the attached .config to linux build tree make ARCH=i386
All errors (new ones prefixed by >>):
mm/mlock.c: In function 'sys_munlockall': >> mm/mlock.c:825:35: error: passing argument 1 of 'down_write_killable_mmap_sem' from incompatible pointer type [-Werror=incompatible-pointer-types] if (down_write_killable_mmap_sem(¤t->mm)) ^ In file included from include/linux/mm.h:16:0, from include/linux/mman.h:4, from mm/mlock.c:9: include/linux/mm_types.h:550:19: note: expected 'struct mm_struct *' but argument is of type 'struct mm_struct **' static inline int down_write_killable_mmap_sem(struct mm_struct *mm) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors
vim +/down_write_killable_mmap_sem +825 mm/mlock.c
819 } 820 821 SYSCALL_DEFINE0(munlockall) 822 { 823 int ret; 824 > 825 if (down_write_killable_mmap_sem(¤t->mm)) 826 return -EINTR; 827 ret = apply_mlockall_flags(0); 828 up_write_mmap_sem(current->mm);
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