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Date: Mon, 25 Apr 2016 11:38:08 +0100
From: Bruce Richardson <bruce.richardson@intel.com>
To: Tomasz Kulasek <tomaszx.kulasek@intel.com>
Cc: wenzhuo.lu@intel.com, helin.zhang@intel.com,
 konstantin.ananyev@intel.com, dev@dpdk.org
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Subject: Re: [dpdk-dev] [PATCH v2] ixgbe: fix bad shift operation in
 ixgbe_set_pool_rx/tx
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On Mon, Apr 25, 2016 at 11:35:44AM +0100, Bruce Richardson wrote:
> On Fri, Apr 22, 2016 at 05:35:57PM +0200, Tomasz Kulasek wrote:
> > Fix issue reported by Coverity.
> > 
> > Coverity ID 13193: Bad bit shift operation (BAD_SHIFT)
> > large_shift: In expression 1 << pool, left shifting by more than 31 bits
> > has undefined behavior. The shift amount, pool, is at least 32.
> > 
> > This patch is a rework of register addr selection logic and mask
> > computation to made it more readable and avoid bit overflow when 32 bit
> > value is shifted over its size for pool > 31.
> > 
> > Fixes: fe3a45fd4104 ("ixgbe: add VMDq support")
> > 
> > Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
> 
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
> 
Applied to dpdk-next-net/rel_16_07

/Bruce