[U-Boot] [PATCH] checkpatch.pl: Fix checkpatch.pl warnings with Perl 5.22

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

Hi Joe,

On Thu, 2015-09-03 at 15:46 -0500, Joe Hershberger wrote:
> Hi Moritz,
> 
> On Thu, Sep 3, 2015 at 2:25 PM, Moritz Fischer <moritz.fischer@ettus.com> wrote:
> > This patch fixes a bunch of deprecation warings that show up when using
> > checkpatch.pl with Perl 5.22.
> > 
> > Unescaped left brace in regex is deprecated, passed through in regex;
> > marked by <-- HERE in m/\#\s*define.*do\s{ <-- HERE / at
> > ./scripts/checkpatch.pl line 2829.
> > 
> > Unescaped left brace in regex is deprecated, passed through in regex;
> > marked by <-- HERE in m/\(.*\){ <-- HERE / at
> > ./scripts/checkpatch.pl line 3262.
> > 
> > Unescaped left brace in regex is deprecated, passed through in regex;
> > marked by <-- HERE in m/do{ <-- HERE / at
> > ./scripts/checkpatch.pl line 3263.
> > 
> > Unescaped left brace in regex is deprecated, passed through in regex;
> > marked by <-- HERE in m/^\({ <-- HERE / at
> > ./scripts/checkpatch.pl line 3636.
> > 
> > Unescaped left brace in regex is deprecated, passed through in regex;
> > marked by <-- HERE in m/(?^x:
> > 
> > Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
> 
> Please submit this and have it accepted in the Linux tree. We will
> then pull it in here once it is accepted there.

Similar fix is already in Linus' master tree, see
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4e5d56bdf892e18832a6540b63ebf709966bce2a

Also note:
 [1] That commit from Linux tree won't apply cleanly on U-Boot
     due to a bit different context.
 [2] Even if manually tweaked it looks like it is incomplete:
     ------------------->8-------------------
     )\(.*\).*\s{ <-- HERE /@scripts/checkpatch.pl line 2828.
     ------------------->8-------------------

So with above in mind could you please apply that patch posted by
Moritz?

This fixes checkpatch in Fedora 23 - in current state it is way too noisy.

-Alexey