kstrtos16_from_user  439 include/linux/kernel.h int __must_check kstrtos16_from_user(const char __user *s, size_t count, unsigned int base, s16 *res);
kstrtos16_from_user  408 lib/kstrtox.c  kstrto_from_user(kstrtos16_from_user,	kstrtos16,	s16);