linux-kernel - Re: [PATCH 1/3] GenWQE: Delete an error message for a failed memory allocation in genwqe_user

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Date:   Mon, 8 Jan 2018 14:24:41 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     Frank Haverkamp <haver@...ux.vnet.ibm.com>
Cc:     kernel-janitors@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Guilherme G. Piccoli" <gpiccoli@...ux.vnet.ibm.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Jörg-Stephan Vogt <jsvogt@...ibm.com>,
        Michael Jung <MIJUNG@...ibm.com>,
        Michael Rüttger <michael@...ra.de>
Subject: Re: [PATCH 1/3] GenWQE: Delete an error message for a failed memory
 allocation in genwqe_user_vmap()

>> @@ -593,7 +593,6 @@ int genwqe_user_vmap(struct genwqe_dev *cd, struct
>> dma_mapping *m, void *uaddr,
>>                     sizeof(struct page *) + sizeof(dma_addr_t),
>>                     GFP_KERNEL);
>>      if (!m->page_list) {
>> -        dev_err(&pci_dev->dev, "err: alloc page_list failed\n");
> 
> Are there different printouts which cover this?

Is this error message redundant?


> I mean the debug printout is not appearing all the time,
> it must be enabled, if I remember correctly.

Would you like to clarify corresponding configuration possibilities any more?


> So why do you suggest to remove it?

Can the Linux allocation failure report be sufficient for this use case already?

Regards,
Markus