Hi Ingo,

FYI, there are new compile warnings show up in

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git nx-emu
head:   ba8b1415b80d18a464d91cf39a08c5ab60c65b30
commit: 60e9398e64beabb73af6fb0a15cc0bd52aeedbc6 [1/2] i386: NX emulation
config: i386-randconfig-b041 (attached as .config)

All error/warnings:

arch/x86/kernel/traps.c: In function 'check_lazy_exec_limit':
arch/x86/kernel/traps.c:145:3: warning: passing argument 1 of 'get_gate_vma' from incompatible pointer type [enabled by default]
In file included from arch/x86/kernel/traps.c:34:0:
include/linux/mm.h:1579:31: note: expected 'struct mm_struct *' but argument is of type 'struct task_struct *'
--
mm/util.c: In function '__vma_link_list':
mm/util.c:243:3: error: implicit declaration of function 'arch_add_exec_range' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
--
mm/mprotect.c: In function 'mprotect_fixup':
mm/mprotect.c:156:29: warning: unused variable 'old_end' [-Wunused-variable]

vim +145 arch/x86/kernel/traps.c
   135		if (current->mm == NULL)
   136			return 0;
   137	
   138		limit = -1UL;
   139		if (current->mm->context.exec_limit != -1UL) {
   140			limit = PAGE_SIZE;
   141			spin_lock(&current->mm->page_table_lock);
   142			for (vma = current->mm->mmap; vma; vma = vma->vm_next)
   143				if ((vma->vm_flags & VM_EXEC) && (vma->vm_end > limit))
   144					limit = vma->vm_end;
 > 145			vma = get_gate_vma(current);
   146			if (vma && (vma->vm_flags & VM_EXEC) && (vma->vm_end > limit))
   147				limit = vma->vm_end;
   148			spin_unlock(&current->mm->page_table_lock);
   149			if (limit >= TASK_SIZE)
   150				limit = -1UL;
   151			current->mm->context.exec_limit = limit;
   152		}
   153		set_user_cs(&current->mm->context.user_cs, limit);
   154	
   155		desc1 = &current->mm->context.user_cs;

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0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu, Yuanhan Liu                              Intel Corporation