netdev - Re: [PATCH net-next] bnxt_en: Fix allocation of zero statistics block size regression.

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Date:   Sat, 24 Aug 2019 16:35:00 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     michael.chan@...adcom.com
Cc:     jonathan.lemon@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] bnxt_en: Fix allocation of zero statistics
 block size regression.

From: Michael Chan <michael.chan@...adcom.com>
Date: Fri, 23 Aug 2019 01:51:41 -0400

> Recent commit added logic to determine the appropriate statistics block
> size to allocate and the size is stored in bp->hw_ring_stats_size.  But
> if the firmware spec is older than 1.6.0, it is 0 and not initialized.
> This causes the allocation to fail with size 0 and bnxt_open() to
> abort.  Fix it by always initializing bp->hw_ring_stats_size to the
> legacy default size value.
> 
> Fixes: 4e7485066373 ("bnxt_en: Allocate the larger per-ring statistics block for 57500 chips.")
> Reported-by: Jonathan Lemon <jonathan.lemon@...il.com>
> Signed-off-by: Michael Chan <michael.chan@...adcom.com>

Applied.