could you help to backport the patch "ping: Print reply with wrong source with warning"

[jishi@ibm-x3250m4-08 iputils]$ git log -1 5f6bec5ab57cc8beaa78f5756a0ffbdf01f28d36
commit 5f6bec5ab57cc8beaa78f5756a0ffbdf01f28d36
Author: Petr Vorel <pvorel@suse.cz>
Date: Fri Oct 15 17:38:51 2021 +0200

ping: Print reply with wrong source with warning

5e052ad ("ping: discard packets with wrong source address") correctly
hid replies with wrong source address to comply RFC 1122 (Section
3.2.1.3: "The IP source address in an ICMP Echo Reply MUST be the same
as the specific-destination address").

This caused to hide reply when pinging Subnet-Router anycast address.
Although it was fixed in the previous commit, relax this to admit the
reply but print warning "DIFFERENT ADDRESS!". ping is diagnostic program,
with insisting on RFC we force people to use tcpdump to see replies.

Link: https://github.com/iputils/iputils/issues/371

Reviewed-by: Matteo Croce <mcroce@microsoft.com>
Signed-off-by: Petr Vorel <pvorel@suse.cz>

What were you trying to do that didn't work?

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