782 static void sbefifo_release_command(struct sbefifo_user *user)  in sbefifo_release_command()  argument
784 	if (is_vmalloc_addr(user->pending_cmd))  in sbefifo_release_command()
785 		vfree(user->pending_cmd);  in sbefifo_release_command()
786 	user->pending_cmd = NULL;  in sbefifo_release_command()
787 	user->pending_len = 0;  in sbefifo_release_command()
793 	struct sbefifo_user *user;  in sbefifo_user_open()  local
795 	user = kzalloc(sizeof(struct sbefifo_user), GFP_KERNEL);  in sbefifo_user_open()
796 	if (!user)  in sbefifo_user_open()
799 	file->private_data = user;  in sbefifo_user_open()
800 	user->sbefifo = sbefifo;  in sbefifo_user_open()
801 	user->cmd_page = (void *)__get_free_page(GFP_KERNEL);  in sbefifo_user_open()
802 	if (!user->cmd_page) {  in sbefifo_user_open()
803 		kfree(user);  in sbefifo_user_open()
806 	mutex_init(&user->file_lock);  in sbefifo_user_open()
807 	user->cmd_timeout_ms = SBEFIFO_TIMEOUT_IN_CMD;  in sbefifo_user_open()
808 	user->read_timeout_ms = SBEFIFO_TIMEOUT_START_RSP;  in sbefifo_user_open()
816 	struct sbefifo_user *user = file->private_data;  in sbefifo_user_read()  local
823 	if (!user)  in sbefifo_user_read()
825 	sbefifo = user->sbefifo;  in sbefifo_user_read()
829 	mutex_lock(&user->file_lock);  in sbefifo_user_read()
832 	if (user->pending_len == 0) {  in sbefifo_user_read()
836 	if (user->pending_len < 8) {  in sbefifo_user_read()
840 	cmd_len = user->pending_len >> 2;  in sbefifo_user_read()
851 	sbefifo->timeout_in_cmd_ms = user->cmd_timeout_ms;  in sbefifo_user_read()
852 	sbefifo->timeout_start_rsp_ms = user->read_timeout_ms;  in sbefifo_user_read()
853 	rc = __sbefifo_submit(sbefifo, user->pending_cmd, cmd_len, &resp_iter);  in sbefifo_user_read()
863 	sbefifo_release_command(user);  in sbefifo_user_read()
864 	mutex_unlock(&user->file_lock);  in sbefifo_user_read()
871 	struct sbefifo_user *user = file->private_data;  in sbefifo_user_write()  local
875 	if (!user)  in sbefifo_user_write()
877 	sbefifo = user->sbefifo;  in sbefifo_user_write()
883 	mutex_lock(&user->file_lock);  in sbefifo_user_write()
887 		user->pending_cmd = user->cmd_page;  in sbefifo_user_write()
889 		user->pending_cmd = vmalloc(len);  in sbefifo_user_write()
890 	if (!user->pending_cmd) {  in sbefifo_user_write()
896 	if (copy_from_user(user->pending_cmd, buf, len)) {  in sbefifo_user_write()
902 	if (len == 4 && be32_to_cpu(*(__be32 *)user->pending_cmd) ==  in sbefifo_user_write()
906 		user->pending_len = 0;  in sbefifo_user_write()
912 		rc = sbefifo_request_reset(user->sbefifo);  in sbefifo_user_write()
920 	user->pending_len = len;  in sbefifo_user_write()
922 	if (!user->pending_len)  in sbefifo_user_write()
923 		sbefifo_release_command(user);  in sbefifo_user_write()
925 	mutex_unlock(&user->file_lock);  in sbefifo_user_write()
933 	struct sbefifo_user *user = file->private_data;  in sbefifo_user_release()  local
935 	if (!user)  in sbefifo_user_release()
938 	sbefifo_release_command(user);  in sbefifo_user_release()
939 	free_page((unsigned long)user->cmd_page);  in sbefifo_user_release()
940 	kfree(user);  in sbefifo_user_release()
945 static int sbefifo_cmd_timeout(struct sbefifo_user *user, void __user *argp)  in sbefifo_cmd_timeout()  argument
947 	struct device *dev = &user->sbefifo->dev;  in sbefifo_cmd_timeout()
954 		user->cmd_timeout_ms = SBEFIFO_TIMEOUT_IN_CMD;  in sbefifo_cmd_timeout()
955 		dev_dbg(dev, "Command timeout reset to %us\n", user->cmd_timeout_ms / 1000);  in sbefifo_cmd_timeout()
959 	user->cmd_timeout_ms = timeout * 1000; /* user timeout is in sec */  in sbefifo_cmd_timeout()
964 static int sbefifo_read_timeout(struct sbefifo_user *user, void __user *argp)  in sbefifo_read_timeout()  argument
966 	struct device *dev = &user->sbefifo->dev;  in sbefifo_read_timeout()
973 		user->read_timeout_ms = SBEFIFO_TIMEOUT_START_RSP;  in sbefifo_read_timeout()
974 		dev_dbg(dev, "Timeout reset to %us\n", user->read_timeout_ms / 1000);  in sbefifo_read_timeout()
978 	user->read_timeout_ms = timeout * 1000; /* user timeout is in sec */  in sbefifo_read_timeout()
985 	struct sbefifo_user *user = file->private_data;  in sbefifo_user_ioctl()  local
988 	if (!user)  in sbefifo_user_ioctl()
991 	mutex_lock(&user->file_lock);  in sbefifo_user_ioctl()
994 		rc = sbefifo_cmd_timeout(user, (void __user *)arg);  in sbefifo_user_ioctl()
997 		rc = sbefifo_read_timeout(user, (void __user *)arg);  in sbefifo_user_ioctl()
1000 	mutex_unlock(&user->file_lock);  in sbefifo_user_ioctl()