Re: [PATCH v2 2/3] net: qrtr: Add MHI transport layer

[Markus Elfring <Markus.Elfring@xxxxxx>]

> Hence, this commit adds MHI transport layer support to QRTR for
> transferring the QMI messages over IPC Router.

I suggest to reconsider software development consequences around
another implementation detail.


…
> +static int qcom_mhi_qrtr_send(struct qrtr_endpoint *ep, struct sk_buff *skb)
> +{
…
> +	rc = mhi_queue_skb(qdev->mhi_dev, DMA_TO_DEVICE, skb, skb->len,
> +			   MHI_EOT);
> +	if (rc) {
> +		kfree_skb(skb);
> +		return rc;
> +	}
…
> +}

I propose again to add a jump target so that a bit of exception handling code
can be better reused at the end of this function implementation.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/coding-style.rst?id=b2768df24ec400dd4f7fa79542f797e904812053#n450

+	if (rc)
+		goto free_skb;
…
+	return rc;
+
+free_skb:
+	kfree_skb(skb);
+	return rc;
+}


Regards,
Markus