From mboxrd@z Thu Jan  1 00:00:00 1970
From: Aaron Williams <Aaron.Williams@caviumnetworks.com>
Date: Wed, 16 Oct 2013 23:24:04 -0700
Subject: [U-Boot] fdt performance
Message-ID: <525F8284.4000304@caviumnetworks.com>
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To: u-boot@lists.denx.de

Hi all,

In our bootloader based off of 2013.07 we make extensive use of the flat 
device tree. In profiling our bootloader in our simulator I found that 
the function eating up the most time is fdt_next_tag. Looking at it, 
especially fdt_offset_ptr, it looks like there is a lot of room for 
improvement especially in the skip name section.

Some of the checks in fdt_offset_ptr also look useless, such as if 
((offset + len) < offset) which will always be false, or
if (p + len < p)

len is always positive.

-Aaron

-- 
Aaron Williams
Software Engineer
Cavium, Inc.
(408) 943-7198  (510) 789-8988 (cell)