Re: [PATCH] of: add early boot allocation of of_find_node_by_phandle() cache

[Frank Rowand]

On 02/14/18 16:44, frowand.list@xxxxxxxxx wrote:
> From: Frank Rowand <frank.rowand@xxxxxxxx>
> 
> The initial implementation of the of_find_node_by_phandle() cache
> allocates the cache using kcalloc().  Add an early boot allocation
> of the cache so it will be usable during early boot.  Switch over
> to the kcalloc() based cache once normal memory allocation
> becomes available.
> 
> Signed-off-by: Frank Rowand <frank.rowand@xxxxxxxx>
> ---
> 
> This patch is optional, to be added at Rob's discretion.  The
> extra complexity is not as much as I had feared, but the boot
> speed up is also likely small.

This patch applies on top of:

[PATCH v3] of: cache phandle nodes to reduce cost of of_find_node_by_phandle()