linux-kernel - Re: [PATCH] lib.c: skip --param parameters

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Message-ID: <20140617023648.GA5961@thin>
Date:	Mon, 16 Jun 2014 19:36:48 -0700
From:	Josh Triplett <josh@...htriplett.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-kernel@...r.kernel.org, linux-sparse@...r.kernel.org
Subject: Re: [PATCH] lib.c: skip --param parameters

On Mon, Jun 16, 2014 at 04:48:51PM -0700, David Rientjes wrote:
> On Mon, 16 Jun 2014, Josh Triplett wrote:
> 
> > On Mon, Jun 16, 2014 at 01:43:06PM +0300, Andy Shevchenko wrote:
> > > Very dumb patch to just skip --param allow-store-data-races=0 introduced in
> > > newest Linux kernel buildsystem.
> > > 
> > > Actually the option is present in few GCC versions and probably should be
> > > handled properly.
> > > 
> > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > 
> > As far as I can tell, this seems to only handle "--param arg"; however,
> > according to the thread on LKML, GCC handles --param=arg as well.  Could
> > you please handle that variant too?
> > 
> 
> This is only from linux-next and not Linus's tree, correct?
> 
> Is this still necessary since the "./Makefile: tell gcc optimizer to never 
> introduce new data races" patch has been removed from -mm due to failures?
> 
> See http://marc.info/?l=linux-mm-commits&m=140295825623471

I'd still like to see Sparse not choke on the option, in either form,
whether the kernel ends up using it or not.

- Josh Triplett
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