netdev - Re: [PATCH v2 net-next 0/3] liquidio: avoid vm low memory crashes

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Message-Id: <20170719.132511.1266939689962983807.davem@davemloft.net>
Date:   Wed, 19 Jul 2017 13:25:11 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     felix.manlunas@...ium.com
Cc:     netdev@...r.kernel.org, raghu.vatsavayi@...ium.com,
        derek.chickles@...ium.com, satananda.burla@...ium.com,
        ricardo.farrington@...ium.com
Subject: Re: [PATCH v2 net-next 0/3] liquidio: avoid vm low memory crashes

From: Felix Manlunas <felix.manlunas@...ium.com>
Date: Mon, 17 Jul 2017 17:49:20 -0700

> From: Rick Farrington <ricardo.farrington@...ium.com>
> 
> This patchset addresses issues brought about by low memory conditions
> in a VM.  These conditions were not seen when the driver was exercised
> normally.  Rather, they were brought about through manual fault injection.
> They are being included in the interest of hardening the driver against
> unforeseen circumstances.
> 
> 1. Fix GPF in octeon_init_droq(); zero the allocated block 'recv_buf_list'.
>    This prevents a GPF trying to access an invalid 'recv_buf_list[i]' entry
>    in octeon_droq_destroy_ring_buffers() if init didn't alloc all entries.
> 2. Don't dereference a NULL ptr in octeon_droq_destroy_ring_buffers().
> 3. For defensive programming, zero the allocated block 'oct->droq[0]' in
>    octeon_setup_output_queues() and 'oct->instr_queue[0]' in    
>    octeon_setup_instr_queues().
> 
> change log:
> V1 -> V2:
> 1. Corrected syntax in 'Subject' lines; no functional or code changes.

Series applied.  I removed the "[0]" in this commit log message.

Thanks.