diff --git a/include/linux/mm.h b/include/linux/mm.h
index 4831348f31e9164e412ae418189ee91e006c8865..2db253209f81945f2c5b2c3de90ae2daadb2332e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -595,6 +595,13 @@ struct vm_operations_struct {
 	void (*close)(struct vm_area_struct * area);
 	int (*split)(struct vm_area_struct * area, unsigned long addr);
 	int (*mremap)(struct vm_area_struct * area);
+	/*
+	 * Called by mprotect() to make driver-specific permission
+	 * checks before mprotect() is finalised.   The VMA must not
+	 * be modified.  Returns 0 if eprotect() can proceed.
+	 */
+	int (*mprotect)(struct vm_area_struct *vma, unsigned long start,
+			unsigned long end, unsigned long newflags);
 	vm_fault_t (*fault)(struct vm_fault *vmf);
 	vm_fault_t (*huge_fault)(struct vm_fault *vmf,
 			enum page_entry_size pe_size);
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 56c02beb60414129b898416a244f8404cc546e9a..ab709023e9aafa5cb93ffd09a8fc7ec7ffddb630 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -616,9 +616,16 @@ static int do_mprotect_pkey(unsigned long start, size_t len,
 		tmp = vma->vm_end;
 		if (tmp > end)
 			tmp = end;
+
+		if (vma->vm_ops && vma->vm_ops->mprotect)
+			error = vma->vm_ops->mprotect(vma, nstart, tmp, newflags);
+		if (error)
+			goto out;
+
 		error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
 		if (error)
 			goto out;
+
 		nstart = tmp;
 
 		if (nstart < prev->vm_end)