[dpdk-dev] [PATCH] ixgbe: fix bad shift operation in ixgbe_set_pool_rx

[Lu, Wenzhuo]

Hi Tomasz,


> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Tomasz Kulasek
> Sent: Friday, April 15, 2016 9:39 PM
> To: dev at dpdk.org
> Cc: Zhang, Helin; Ananyev, Konstantin
> Subject: [dpdk-dev] [PATCH] ixgbe: fix bad shift operation in ixgbe_set_pool_rx
> 
> CID 13193 (#1 of 1): 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 limits mask shift to be in range of 32 bit PFVFRE[1] register, for pool >
> 31.
> 
> Fixes: fe3a45fd4104 ("ixgbe: add VMDq support")
> 
> Signed-off-by: Tomasz Kulasek <tomaszx.kulasek at intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu at intel.com>