[PATCH] dma/idxd: fix AVX2 code in non-datapath functions

[Walsh, Conor]

> While all systems which will use the idxd driver for hardware will
> support AVX2, if the driver is present the initialization functions e.g.
> to register logs, will be called on all systems - irrespective of HW
> support. This can cause issues if the system running DPDK does not have
> AVX2, and the compiler has included AVX instructions in the
> initialization code.
> 
> To fix this, remove AVX2 instruction set from the whole build of the
> driver. Instead, we add "target(avx2)" attribute to all datapath
> functions, so those - and only those functions - will having AVX2
> instructions in them.
> 
> Bugzilla ID: 1038
> Fixes: 3d36a0a1c7de ("dma/idxd: add data path job submission")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
> ---

Acked-by: Conor Walsh <conor.walsh at intel.com>