queue-6.6/igc-remove-stale-comment-about-tx-timestamping.patch

   1 From 549eb7915e7e6faed48e8a465d2adc36ff234a5d Mon Sep 17 00:00:00 2001
   2 From: Sasha Levin <sashal@kernel.org>
   3 Date: Wed, 13 Mar 2024 14:03:10 +0100
   4 Subject: igc: Remove stale comment about Tx timestamping
   5
   6 From: Kurt Kanzenbach <kurt@linutronix.de>
   7
   8 [ Upstream commit 47ce2956c7a61ff354723e28235205fa2012265b ]
   9
  10 The initial igc Tx timestamping implementation used only one register for
  11 retrieving Tx timestamps. Commit 3ed247e78911 ("igc: Add support for
  12 multiple in-flight TX timestamps") added support for utilizing all four of
  13 them e.g., for multiple domain support. Remove the stale comment/FIXME.
  14
  15 Fixes: 3ed247e78911 ("igc: Add support for multiple in-flight TX timestamps")
  16 Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
  17 Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
  18 Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
  19 Tested-by: Naama Meir <naamax.meir@linux.intel.com>
  20 Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
  21 Signed-off-by: Sasha Levin <sashal@kernel.org>
  22 ---
  23  drivers/net/ethernet/intel/igc/igc_main.c | 4 ----
  24  1 file changed, 4 deletions(-)
  25
  26 diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
  27 index fc1de116d5548..e83700ad7e622 100644
  28 --- a/drivers/net/ethernet/intel/igc/igc_main.c
  29 +++ b/drivers/net/ethernet/intel/igc/igc_main.c
  30 @@ -1640,10 +1640,6 @@ static netdev_tx_t igc_xmit_frame_ring(struct sk_buff *skb,
  31
  32         if (unlikely(test_bit(IGC_RING_FLAG_TX_HWTSTAMP, &tx_ring->flags) &&
  33                      skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
  34 -               /* FIXME: add support for retrieving timestamps from
  35 -                * the other timer registers before skipping the
  36 -                * timestamping request.
  37 -                */
  38                 unsigned long flags;
  39                 u32 tstamp_flags;
  40
  41 --
  42 2.43.0
  43