[lwip-devel] [task #6849] Test how checksum on copy could be integrated into the stack

[Simon Goldschmidt]

Follow-up Comment #30, task #6849 (project lwip):

Well, OK, but how is that going to work for RX? As far as I can remember,
pbuf_header works on all pbuf types when hiding headers (not when unhiding
them, i.e. expanding to the front, which is what you took advantage of).

Anyway, that solution doesn't work for PBUF_RAM pbufs passed to udp_send and
doesn't work for TCP, too (where PBUF_RAM pbufs are used when copying data),
so it doesn't work for checksum-on-copy, only for
"precalculated-checksum-no-copy".

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