On Mon, Jan 27, 2020 at 10:19:09AM -0500, Tom Rini wrote: > In upstream libfdt, 6dcb8ba4 "libfdt: Add helpers for accessing > unaligned words" introduced changes to support unaligned reads for ARM > platforms and 11738cf01f15 "libfdt: Don't use memcpy to handle unaligned > reads on ARM" improved the performance of these helpers. > > In practice however, this only occurs when the user has forced the > device tree to be placed in memory in a non-aligned way, which in turn > violates both our rules and the Linux Kernel rules for how things must > reside in memory to function. > > This "in practice" part is important as handling these other cases adds > visible (1 second or more) delay to boot in what would be considered the > fast path of the code. > > Cc: Patrice CHOTARD <patrice.chot...@st.com> > Cc: Patrick DELAUNAY <patrick.delau...@st.com> > Link: https://www.spinics.net/lists/devicetree-compiler/msg02972.html > Signed-off-by: Tom Rini <tr...@konsulko.com>
I can see now I didn't quite catch everything, oops. That's what I get for posting and then testing. v2 shortly, sorry all. -- Tom
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