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This patch moves TP_STORE_ADDR_PORTS_SKB() to a common header and removes
the TCP specific implementation details.

Previously the macro assumed the skb passed as an argument is a
TCP packet, the implementation now uses an argument to the L4 header and
uses that to extract the source/destination ports, which happen
to be named the same in "struct tcphdr" and "struct udphdr"
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Signed-off-by: Balazs Scheidler <balazs.scheidler@axoflow.com>
Link: https://lore.kernel.org/r/9e306f78260dfbbdc7353ba5f864cc027a409540.1711475011.git.balazs.scheidler@axoflow.com

Signed-off-by: Jakub Kicinski <kuba@kernel.org>