kernel: rename upstreamed patches and import fixes

Move and rename patches which were merged upstream and import follow-up
fixes for MediaTek Ethernet offloading features on MT7622 and Filogic
platforms. Remove patch
793-net-ethernet-mtk_eth_soc-fix-typo-in-__mtk_foe_entry.patch
which breaks hardware flow offloading on MT7622, it will be reverted
upstream as well.

Fixes: c93c5365c0 ("kernel: pick patches for MediaTek Ethernet from linux-next")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/target/linux/generic/backport-5.15/725-v6.0-net-ethernet-mtk_eth_soc-fix-usage-of-foe_entry_size.patch b/target/linux/generic/backport-5.15/725-v6.0-net-ethernet-mtk_eth_soc-fix-usage-of-foe_entry_size.patch
new file mode 100644
index 0000000000..bb02f401a2
--- /dev/null
+++ b/target/linux/generic/backport-5.15/725-v6.0-net-ethernet-mtk_eth_soc-fix-usage-of-foe_entry_size.patch
@@ -0,0 +1,49 @@
+From fcf14c2c5deae8f8c3d25530bab10856f63f8a63 Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Sun, 25 Sep 2022 15:18:54 +0100
+Subject: [PATCH 2/2] net: ethernet: mtk_eth_soc: fix usage of foe_entry_size
+To: linux-mediatek@lists.infradead.org,
+    netdev@vger.kernel.org,
+    Lorenzo Bianconi <lorenzo@kernel.org>
+Cc: Sujuan Chen <sujuan.chen@mediatek.com>,
+    Bo Jiao <Bo.Jiao@mediatek.com>,
+    Felix Fietkau <nbd@nbd.name>,
+    John Crispin <john@phrozen.org>,
+    Sean Wang <sean.wang@mediatek.com>,
+    Mark Lee <Mark-MC.Lee@mediatek.com>,
+    David S. Miller <davem@davemloft.net>,
+    Eric Dumazet <edumazet@google.com>,
+    Jakub Kicinski <kuba@kernel.org>,
+    Paolo Abeni <pabeni@redhat.com>,
+    Matthias Brugger <matthias.bgg@gmail.com>,
+    Chen Minqiang <ptpt52@gmail.com>
+
+As sizeof(hwe->data) can now longer be used as the actual size depends
+on foe_entry_size, in commit 9d8cb4c096ab02
+("net: ethernet: mtk_eth_soc: add foe_entry_size to mtk_eth_soc") the
+use of sizeof(hwe->data) is hence replaced.
+However, replacing it with ppe->eth->soc->foe_entry_size is wrong as
+foe_entry_size represents the size of the whole descriptor and not just
+the 'data' field.
+Fix this by subtracing the size of the only other field in the struct
+'ib1', so we actually end up with the correct size to be copied to the
+data field.
+
+Reported-by: Chen Minqiang <ptpt52@gmail.com>
+Fixes: 9d8cb4c096ab02 ("net: ethernet: mtk_eth_soc: add foe_entry_size to mtk_eth_soc")
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+---
+ drivers/net/ethernet/mediatek/mtk_ppe.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -547,7 +547,7 @@ __mtk_foe_entry_commit(struct mtk_ppe *p
+ 	}
+ 
+ 	hwe = mtk_foe_get_entry(ppe, hash);
+-	memcpy(&hwe->data, &entry->data, eth->soc->foe_entry_size);
++	memcpy(&hwe->data, &entry->data, eth->soc->foe_entry_size - sizeof(hwe->ib1));
+ 	wmb();
+ 	hwe->ib1 = entry->ib1;
+