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

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Message-ID: <8a6e9a45-2307-f3e3-04b1-2c7cefe53614@linux.intel.com>
Date:   Mon, 15 Nov 2021 19:24:47 +0530
From:   "Kumar, M Chetan" <m.chetan.kumar@...ux.intel.com>
To:     Denis Kirjanov <dkirjanov@...e.de>, netdev@...r.kernel.org
Cc:     kuba@...nel.org, davem@...emloft.net, johannes@...solutions.net,
        ryazanov.s.a@...il.com, loic.poulain@...aro.org,
        krishna.c.sudi@...el.com, m.chetan.kumar@...el.com,
        linuxwwan@...el.com
Subject: Re: [PATCH net-next] net: wwan: iosm: device trace collection using
 relayfs



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

>>   /* 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.