The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x d516b187a9cc2e842030dd005be2735db3e8f395 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024080700-felt-tip-cupped-5224@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

d516b187a9cc ("r8169: don't increment tx_dropped in case of NETDEV_TX_BUSY") 93882c6f210a ("r8169: switch from netif_xxx message functions to netdev_xxx") b8447abc4c8f ("r8169: factor out rtl8169_tx_map") 2864a883f931 ("r8169: use pci_status_get_and_clear_errors") 90760b21aef4 ("r8169: add PCI_STATUS_PARITY to PCI status error bits") 9020845fb5d6 ("r8169: improve rtl8169_start_xmit") f1f9ca287569 ("r8169: improve rtl8169_get_mac_version") a8ec173a3f29 ("r8169: don't set min_mtu/max_mtu if not needed") 2992bdfa4ad2 ("r8169: add r8169.h") 1c5be5e91d78 ("r8169: rename rtl_apply_firmware") 8cecc8f0ae2e ("r8169: change argument type of EEE PHY functions") becd837eebc5 ("r8169: prepare for exporting rtl_hw_phy_config") af7797785d61 ("r8169: move enabling EEE to rtl8169_init_phy") 3127f7c9b7da ("r8169: factor out rtl8168h_2_get_adc_bias_ioffset") 229c1e0dfd3d ("r8169: load firmware for RTL8168fp/RTL8117") 718af5bc9709 ("r8169: improve conditional firmware loading for RTL8168d") d0db136ffb59 ("r8169: use r8168d_modify_extpage in rtl8168f_config_eee_phy") 1287723aa139 ("r8169: add support for RTL8117") 0721914a3d2b ("r8169: add helper r8168d_modify_extpage") 3a129e3f9ac4 ("r8169: switch to phylib functions in more places")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From d516b187a9cc2e842030dd005be2735db3e8f395 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit hkallweit1@gmail.com Date: Tue, 30 Jul 2024 21:51:52 +0200 Subject: [PATCH] r8169: don't increment tx_dropped in case of NETDEV_TX_BUSY

The skb isn't consumed in case of NETDEV_TX_BUSY, therefore don't increment the tx_dropped counter.

Fixes: 188f4af04618 ("r8169: use NETDEV_TX_{BUSY/OK}") Cc: stable@vger.kernel.org Suggested-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Heiner Kallweit hkallweit1@gmail.com Reviewed-by: Wojciech Drewek wojciech.drewek@intel.com Link: https://patch.msgid.link/bbba9c48-8bac-4932-9aa1-d2ed63bc9433@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 714d2e804694..3507c2e28110 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -4349,7 +4349,8 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb, if (unlikely(!rtl_tx_slots_avail(tp))) { if (net_ratelimit()) netdev_err(dev, "BUG! Tx Ring full when queue awake!\n"); - goto err_stop_0; + netif_stop_queue(dev); + return NETDEV_TX_BUSY; }

opts[1] = rtl8169_tx_vlan_tag(skb); @@ -4405,11 +4406,6 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb, dev_kfree_skb_any(skb); dev->stats.tx_dropped++; return NETDEV_TX_OK; - -err_stop_0: - netif_stop_queue(dev); - dev->stats.tx_dropped++; - return NETDEV_TX_BUSY; }

static unsigned int rtl_last_frag_len(struct sk_buff *skb)