[U-Boot] [PATCH] ppc4xx: Add Sequoia RAM-booting target

[Scott Wood <scottwood@freescale.com>]

Wolfgang Denk wrote:
> Dear Stefan,
> 
> in message <200905071739.56301.sr@denx.de> you wrote:
>>>> Linux kernel btw. Here the macro "__maybe_unsed" is defined to
>>>> "__attribute__((unused))".
>>> In many cases?  a rgrep on a recent kernel counts 84 incantations, which
>>> is not much for the Linux kernel, I believe.
>> Perhaps it's quite new to the Linux kernel. I just spotted it the first time a 
>> few weeks ago and thought: "What a nice way to remove some of the ugly 
>> #ifdef's in U-Boot!". :)
> 
> My understanding was that  this  is  (only?)  intended  for  function
> declarations  to  silence  warnings  about  unused function arguments
> (which may be necessary anyway for  compatible  call  interface  with
> other functions that actually need this arg).

Unusued function argument warnings are not normally enabled in the first 
place (it's a separate warning class from unused variables).

-Scott