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[lwip-devel] [patch #6537] wnd_scale TCP option addition

From: Simon Goldschmidt
Subject: [lwip-devel] [patch #6537] wnd_scale TCP option addition
Date: Mon, 20 Apr 2009 09:34:25 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv: Gecko/2009032609 Firefox/3.0.8

Follow-up Comment #9, patch #6537 (project lwip):

The blocker of this patch will be that it converts the tot_len field of
struct pbuf from u16_t to u32_t. The silent agreement under lwIP developers
(at least in the past 2 years) has been to *not* modify struct pbuf as it is
really neatly aligned on most platforms with the current size. Adding 16 bits
will break alignment on most platforms, essentially doubling its size after
aligning: for low-memory targets this is often not an option.


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