37 TEE_Result check_user_access(uint32_t flags, const void *uaddr, size_t len)  in check_user_access()  argument
44 	return vm_check_access_rights(uctx, flags, (vaddr_t)uaddr, len);  in check_user_access()
47 TEE_Result copy_from_user(void *kaddr, const void *uaddr, size_t len)  in copy_from_user()  argument
53 	res = check_user_access(flags, uaddr, len);  in copy_from_user()
56 		memcpy(kaddr, uaddr, len);  in copy_from_user()
63 TEE_Result copy_to_user(void *uaddr, const void *kaddr, size_t len)  in copy_to_user()  argument
69 	res = check_user_access(flags, uaddr, len);  in copy_to_user()
72 		memcpy(uaddr, kaddr, len);  in copy_to_user()
79 TEE_Result copy_from_user_private(void *kaddr, const void *uaddr, size_t len)  in copy_from_user_private()  argument
85 	res = check_user_access(flags, uaddr, len);  in copy_from_user_private()
88 		memcpy(kaddr, uaddr, len);  in copy_from_user_private()
95 TEE_Result copy_to_user_private(void *uaddr, const void *kaddr, size_t len)  in copy_to_user_private()  argument
101 	res = check_user_access(flags, uaddr, len);  in copy_to_user_private()
104 		memcpy(uaddr, kaddr, len);  in copy_to_user_private()
130 void *bb_alloc(size_t len)  in bb_alloc()  argument
136 	if (uctx && !ADD_OVERFLOW(uctx->bbuf_offs, len, &offs) &&  in bb_alloc()
138 		bb = maybe_tag_bb(uctx->bbuf + uctx->bbuf_offs, len);  in bb_alloc()
144 static void bb_free_helper(struct user_mode_ctx *uctx, vaddr_t bb, size_t len)  in bb_free_helper()  argument
155 		maybe_untag_bb((void *)bb, len);  in bb_free_helper()
157 		if (prev_offs + ROUNDUP(len, BB_ALIGNMENT) == uctx->bbuf_offs)  in bb_free_helper()
162 void bb_free(void *bb, size_t len)  in bb_free()  argument
167 		bb_free_helper(uctx, memtag_strip_tag_vaddr(bb), len);  in bb_free()
170 void bb_free_wipe(void *bb, size_t len)  in bb_free_wipe()  argument
173 		memset(bb, 0, len);  in bb_free_wipe()
174 	bb_free(bb, len);  in bb_free_wipe()
209 size_t strnlen_user(const void *uaddr, size_t len)  in strnlen_user()  argument
215 	if (!len)  in strnlen_user()
219 	res = check_user_access(flags, uaddr, len);  in strnlen_user()
222 		n = strnlen(uaddr, len);  in strnlen_user()
231 							   size_t len),  in __bb_memdup_user()  argument
232 				   const void *src, size_t len, void **p)  in __bb_memdup_user()
237 	buf = bb_alloc(len);  in __bb_memdup_user()
241 	if (len)  in __bb_memdup_user()
242 		res = copy_func(buf, src, len);  in __bb_memdup_user()
245 		bb_free(buf, len);  in __bb_memdup_user()
252 TEE_Result bb_memdup_user(const void *src, size_t len, void **p)  in bb_memdup_user()  argument
254 	return __bb_memdup_user(copy_from_user, src, len, p);  in bb_memdup_user()
257 TEE_Result bb_memdup_user_private(const void *src, size_t len, void **p)  in bb_memdup_user_private()  argument
259 	return __bb_memdup_user(copy_from_user_private, src, len, p);  in bb_memdup_user_private()