The patch below does not apply to the 6.6-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@xxxxxxxxxxxxxxx>. 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-6.6.y git checkout FETCH_HEAD git cherry-pick -x 475747a19316b08e856c666a20503e73d7ed67ed # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable@xxxxxxxxxxxxxxx>' --in-reply-to '2024042909-drab-untapped-78a4@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: 475747a19316 ("macsec: Enable devices to advertise whether they update sk_buff md_dst during offloads") a73d8779d61a ("net: macsec: introduce mdo_insert_tx_tag") eb97b9bd38f9 ("net: macsec: documentation for macsec_context and macsec_ops") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 475747a19316b08e856c666a20503e73d7ed67ed Mon Sep 17 00:00:00 2001 From: Rahul Rameshbabu <rrameshbabu@xxxxxxxxxx> Date: Tue, 23 Apr 2024 11:13:02 -0700 Subject: [PATCH] macsec: Enable devices to advertise whether they update sk_buff md_dst during offloads Cannot know whether a Rx skb missing md_dst is intended for MACsec or not without knowing whether the device is able to update this field during an offload. Assume that an offload to a MACsec device cannot support updating md_dst by default. Capable devices can advertise that they do indicate that an skb is related to a MACsec offloaded packet using the md_dst. Cc: Sabrina Dubroca <sd@xxxxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Fixes: 860ead89b851 ("net/macsec: Add MACsec skb_metadata_dst Rx Data path support") Signed-off-by: Rahul Rameshbabu <rrameshbabu@xxxxxxxxxx> Reviewed-by: Benjamin Poirier <bpoirier@xxxxxxxxxx> Reviewed-by: Cosmin Ratiu <cratiu@xxxxxxxxxx> Reviewed-by: Sabrina Dubroca <sd@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20240423181319.115860-2-rrameshbabu@xxxxxxxxxx Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> diff --git a/include/net/macsec.h b/include/net/macsec.h index dbd22180cc5c..de216cbc6b05 100644 --- a/include/net/macsec.h +++ b/include/net/macsec.h @@ -321,6 +321,7 @@ struct macsec_context { * for the TX tag * @needed_tailroom: number of bytes reserved at the end of the sk_buff for the * TX tag + * @rx_uses_md_dst: whether MACsec device offload supports sk_buff md_dst */ struct macsec_ops { /* Device wide */ @@ -352,6 +353,7 @@ struct macsec_ops { struct sk_buff *skb); unsigned int needed_headroom; unsigned int needed_tailroom; + bool rx_uses_md_dst; }; void macsec_pn_wrapped(struct macsec_secy *secy, struct macsec_tx_sa *tx_sa);