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[bpf-next,3/6] ice: remove two impossible branches on XDP Tx cleaning

Message ID 20230210170618.1973430-4-alexandr.lobakin@intel.com (mailing list archive)
State Accepted
Commit 923096b5cec3a68cc4b3816b1b9a50139df62ac7
Delegated to: BPF
Headers show
Series ice: post-mbuf fixes | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for bpf-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 3 this patch: 3
netdev/cc_maintainers warning 7 maintainers not CCed: john.fastabend@gmail.com pabeni@redhat.com jesse.brandeburg@intel.com edumazet@google.com anthony.l.nguyen@intel.com intel-wired-lan@lists.osuosl.org davem@davemloft.net
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 3 this patch: 3
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 22 lines checked
netdev/kdoc success Errors and warnings before: 3 this patch: 3
netdev/source_inline success Was 0 now: 0
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Commit Message

Alexander Lobakin Feb. 10, 2023, 5:06 p.m. UTC 
The tagged commit started sending %XDP_TX frames from XSk Rx ring
directly without converting it to an &xdp_frame. However, when XSk is
enabled on a queue pair, it has its separate Tx cleaning functions, so
neither ice_clean_xdp_irq() nor ice_unmap_and_free_tx_buf() ever happens
there.
Remove impossible branches in order to reduce the diffstat of the
upcoming change.

Fixes: a24b4c6e9aab ("ice: xsk: Do not convert to buff to frame for XDP_TX")
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_txrx.c     | 5 +----
 drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 5 +----
 2 files changed, 2 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 466113c86e6f..6b99adb695e7 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -116,10 +116,7 @@  ice_unmap_and_free_tx_buf(struct ice_tx_ring *ring, struct ice_tx_buf *tx_buf)
 		if (tx_buf->tx_flags & ICE_TX_FLAGS_DUMMY_PKT) {
 			devm_kfree(ring->dev, tx_buf->raw_buf);
 		} else if (ice_ring_is_xdp(ring)) {
-			if (ring->xsk_pool)
-				xsk_buff_free(tx_buf->xdp);
-			else
-				page_frag_free(tx_buf->raw_buf);
+			page_frag_free(tx_buf->raw_buf);
 		} else {
 			dev_kfree_skb_any(tx_buf->skb);
 		}
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
index 784f2f9ebb2d..6371acb0deb0 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
@@ -275,10 +275,7 @@  static u32 ice_clean_xdp_irq(struct ice_tx_ring *xdp_ring)
 		ready_frames -= frags + 1;
 		xdp_tx++;
 
-		if (xdp_ring->xsk_pool)
-			xsk_buff_free(tx_buf->xdp);
-		else
-			ice_clean_xdp_tx_buf(xdp_ring, tx_buf);
+		ice_clean_xdp_tx_buf(xdp_ring, tx_buf);
 		ntc++;
 		if (ntc == cnt)
 			ntc = 0;