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authorAlexander Lobakin <alexandr.lobakin@intel.com>2021-12-13 16:31:08 +0100
committerTony Nguyen <anthony.l.nguyen@intel.com>2021-12-17 20:12:05 +0100
commit0708b6facb4d165ef22bccddf2dc3e1eb9a12d03 (patch)
treebb96584772845ea1fce576827ec8f1f86029e8c6 /drivers/net
parentice: xsk: allocate separate memory for XDP SW ring (diff)
downloadlinux-0708b6facb4d165ef22bccddf2dc3e1eb9a12d03.tar.xz
linux-0708b6facb4d165ef22bccddf2dc3e1eb9a12d03.zip
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>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_xsk.c1
1 files changed, 0 insertions, 1 deletions
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;
}