- unsigned long tmp1, tmp2;
-
- tmp1 = 0UL;
- asm volatile(
- "0: mvcp 0(%0,%2),0(%1),%3\n"
- " "SLR" %0,%0\n"
- " j 3f\n"
- "1: la %4,255(%1)\n" /* %4 = ptr + 255 */
- " "LHI" %3,-4096\n"
- " nr %4,%3\n" /* %4 = (ptr + 255) & -4096 */
- " "SLR" %4,%1\n"
- " "CLR" %0,%4\n" /* copy crosses next page boundary? */
- " jnh 3f\n"
- "2: mvcp 0(%4,%2),0(%1),%3\n"
- " "SLR" %0,%4\n"
- "3:\n"
- EX_TABLE(0b,1b) EX_TABLE(2b,3b)
- : "+a" (size), "+a" (ptr), "+a" (x), "+a" (tmp1), "=a" (tmp2)
- : : "cc", "memory");
- return size;
+ if (size <= 1024)
+ return copy_from_user_std(size, ptr, x);
+ return copy_from_user_pt(size, ptr, x);