# --- T2-COPYRIGHT-BEGIN ---
# t2/package/*/linux/hotfix-ether-unaligned.patch
# Copyright (C) 2026 The T2 SDE Project
# SPDX-License-Identifier: GPL-2.0 or patched project license
# --- T2-COPYRIGHT-END ---

Seen on sparc64:

[ 9.481223] Kernel unaligned access at TPC[1006165c] i40e_config_netdev+0x1fc/0x300 [i40e]
[ 9.499600] Kernel unaligned access at TPC[10061664] i40e_config_netdev+0x204/0x300 [i40e]
[ 9.524779] Kernel unaligned access at TPC[1006166c] i40e_config_netdev+0x20c/0x300 [i40e]
[ 9.879690] Kernel unaligned access at TPC[1006165c] i40e_config_netdev+0x1fc/0x300 [i40e]
[ 9.908692] Kernel unaligned access at TPC[10061664] i40e_config_netdev+0x204/0x300 [i40e]

Based on report by Tony Rodriguez <unixpro1970@gmail.com>
https://github.com/sparclinux/issues/issues/19

--- linux-6.19/include/linux/etherdevice.h.vanilla	2026-04-02 12:11:58.499037343 +0200
+++ linux-6.19/include/linux/etherdevice.h	2026-04-02 12:15:17.487579007 +0200
@@ -305,12 +305,7 @@
 	*(u32 *)dst = *(const u32 *)src;
 	*(u16 *)(dst + 4) = *(const u16 *)(src + 4);
 #else
-	u16 *a = (u16 *)dst;
-	const u16 *b = (const u16 *)src;
-
-	a[0] = b[0];
-	a[1] = b[1];
-	a[2] = b[2];
+	memcpy(dst, src, ETH_ALEN);
 #endif
 }