158 			 const struct fsverity_enable_arg *arg)  in enable_verity()  argument
164 	size_t desc_size = sizeof(*desc) + arg->sig_size;  in enable_verity()
173 	desc->hash_algorithm = arg->hash_algorithm;  in enable_verity()
174 	desc->log_blocksize = ilog2(arg->block_size);  in enable_verity()
177 	if (arg->salt_size &&  in enable_verity()
179 			   (const u8 __user *)(uintptr_t)arg->salt_ptr,  in enable_verity()
180 			   arg->salt_size)) {  in enable_verity()
184 	desc->salt_size = arg->salt_size;  in enable_verity()
187 	if (arg->sig_size &&  in enable_verity()
189 			   (const u8 __user *)(uintptr_t)arg->sig_ptr,  in enable_verity()
190 			   arg->sig_size)) {  in enable_verity()
194 	desc->sig_size = cpu_to_le32(arg->sig_size);  in enable_verity()
200 					       arg->hash_algorithm,  in enable_verity()
251 	if (arg->sig_size)  in enable_verity()
253 			 arg->sig_size);  in enable_verity()
302 	struct fsverity_enable_arg arg;  in fsverity_ioctl_enable()  local
305 	if (copy_from_user(&arg, uarg, sizeof(arg)))  in fsverity_ioctl_enable()
308 	if (arg.version != 1)  in fsverity_ioctl_enable()
311 	if (arg.__reserved1 ||  in fsverity_ioctl_enable()
312 	    memchr_inv(arg.__reserved2, 0, sizeof(arg.__reserved2)))  in fsverity_ioctl_enable()
315 	if (arg.block_size != PAGE_SIZE)  in fsverity_ioctl_enable()
318 	if (arg.salt_size > FIELD_SIZEOF(struct fsverity_descriptor, salt))  in fsverity_ioctl_enable()
321 	if (arg.sig_size > FS_VERITY_MAX_SIGNATURE_SIZE)  in fsverity_ioctl_enable()
352 	err = enable_verity(filp, &arg);  in fsverity_ioctl_enable()