Re: [PATCH net-next] net: wwan: iosm: device trace collection using relayfs

On 11/15/2021 6:59 PM, Denis Kirjanov wrote:

quoted

  /* Check the wwan ips if it is valid with Channel as input. */
  static int ipc_imem_check_wwan_ips(struct ipc_mem_channel *chnl)

@@ -265,9 +266,14 @@ static void ipc_imem_dl_skb_process(struct 

iosm_imem *ipc_imem,
      switch (pipe->channel->ctype) {
      case IPC_CTYPE_CTRL:
          port_id = pipe->channel->channel_id;
+        ipc_pcie_addr_unmap(ipc_imem->pcie, IPC_CB(skb)->len,
+                    IPC_CB(skb)->mapping,
+                    IPC_CB(skb)->direction);

Looks like the hunk above is not related to the subject, right?

It is related.
Trace SKB->data is unmapped before passing SKB->data to relayfs.