From: Alexander Lobakin <alexandr.lobakin@intel.com>
Date: Mon, 13 Dec 2021 15:31:08 +0000 (+0100)
Subject: ice: remove dead store on XSK hotpath
X-Git-Tag: v6.6.17~8576^2~26^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0708b6facb4d165ef22bccddf2dc3e1eb9a12d03;p=platform%2Fkernel%2Flinux-rpi.git

ice: remove dead store on XSK hotpath

The 'if (ntu == rx_ring->count)' block in ice_alloc_rx_buffers_zc()
was previously residing in the loop, but after introducing the
batched interface it is used only to wrap-around the NTU descriptor,
thus no more need to assign 'xdp'.

Fixes: db804cfc21e9 ("ice: Use the xsk batched rx allocation interface")
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---

diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c
index c124229d98fe..27f5f64dcbd6 100644
--- a/drivers/net/ethernet/intel/ice/ice_xsk.c
+++ b/drivers/net/ethernet/intel/ice/ice_xsk.c
@@ -397,7 +397,6 @@ bool ice_alloc_rx_bufs_zc(struct ice_rx_ring *rx_ring, u16 count)
 	ntu += nb_buffs;
 	if (ntu == rx_ring->count) {
 		rx_desc = ICE_RX_DESC(rx_ring, 0);
-		xdp = rx_ring->xdp_buf;
 		ntu = 0;
 	}