Re: [RFC] net/hsr: Add support for IEC 62439-3 High-availability Seamless Redundancy

From: Arvid Brodin <redacted>
Date: Thu, 5 Apr 2012 01:09:48 +0200

-		icmp_param.data.icmph	   = *icmp_hdr(skb);
+		memcpy(&icmp_param.data.icmph, icmp_hdr(skb),
+						sizeof(icmp_param.data.icmph));

GCC can and will optimize this into an inline assignment, and thus
have the same unaligned access problems, because it determines
alignment based upon the types involved.