|
| From: | Bill Auerbach |
| Subject: | [lwip-devel] [bug #27352] Change ip_addr from struct to typedef (u32_t) |
| Date: | Mon, 01 Feb 2010 14:15:12 +0000 |
| User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7 (.NET CLR 3.5.30729) |
Follow-up Comment #16, bug #27352 (project lwip):
One possibility not mentioned is to pass ip_addr as a variable and not
pointer to an ip_addr. When it's a u32_t the lack of concern for alignment is
obvious. For IPv6 this means the typedef has to be a struct and it's passed
by value by the compiler (with a copy). I don't think anyone requiring IPv6
can be worrying too much about performance - on some processors I don't even
know if IPv6 makes sense. Do IPv6 and "light weight" fit in the same
sentence?
Option c) might be "Replace &(var_iphdr) with var_iphdr"
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