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[lwip-devel] [bug #2942] pbuf_realloc cannot not grow chains (can only s
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From: |
Jonathan Larmour |
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Subject: |
[lwip-devel] [bug #2942] pbuf_realloc cannot not grow chains (can only shrink chains). |
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Date: |
Tue, 17 Apr 2007 14:44:21 +0000 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.10) Gecko/20070223 Fedora/1.5.0.10-1.fc5 Firefox/1.5.0.10 |
Follow-up Comment #3, bug #2942 (project lwip):
There doesn't seem to be any point to me since you can grow a pbuf chain by
simply pbuf_chain()'ing another pbuf, and that would almost certainly be more
efficient.
I did happen to notice though that pbuf_realloc uses an s16_t to express the
difference in size between the old and new sizes, but you could be e.g.
shrinking a 64K pbuf to 16K, which can't be expressed in an s16_t. I'll fix
that right now by making it an s32_t.
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