[U-Boot] [PATCH RESEND 1/2 v2] linux-compat: Use original kern_levels.h for kernel debug levels

[Alexey Brodkin <Alexey.Brodkin@synopsys.com>]

Hi Tom,

On Fri, 2016-06-10 at 15:20 -0400, Tom Rini wrote:
> On Fri, Jun 10, 2016 at 03:42:30PM +0300, Alexey Brodkin wrote:
> > 
> > Even currently in U-Boot we don't really use kernel debug levels
> > we do have quite a lot of code that was copy-pasted from Linux kernel
> > and so contains symbols like KERN_DEBUG and alike.
> > 
> > We used to just define those symbols which is fine if it is used in
> > constructions like:
> > ----------------->8--------------
> > ????printk(KERN_DEBUG "My debug message");
> > ----------------->8--------------
> > 
> > But in other places where the symbol gets passed as a separate
> > argument (which we also have but luckily all of them are intself
> > dummy stubs in U-Boot) that won't work.
> > 
> > Now as a preparation to introduction of a real implementation of
> > print_hex_dump() we need those symbols to be defined as something real
> > so we're taking them as they are from Linux kernel.
>
> Contents are fine but you need to say what version of the kernel you get
> it from.

This is taken from 4.7-rc2.

Given print_hex_dump() requires rework in a sense that we want to replace
existing print_buffer() with it maybe we apply this patch because it has
no dependencies on anything else?

If you want I may resend it with added info about kernel version used for
copy, or alternatively you may fixup it on patch application.

-Alexey