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Date:   Tue, 4 Apr 2023 08:30:12 -0700
From:   Nathan Chancellor <nathan@kernel.org>
To:     Josh Triplett <josh@joshtriplett.org>
Cc:     kernel test robot <lkp@intel.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
        oe-kbuild-all@lists.linux.dev,
        Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [PATCH] prctl: Add PR_GET_AUXV to copy auxv to userspace
Message-ID: <20230404153012.GA1702188@dev-arch.thelio-3990X>
References: <b11a591e085f1cd06adb454b1f7cde676d317318.1680585798.git.josh@joshtriplett.org>
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On Tue, Apr 04, 2023 at 09:07:59PM +0900, Josh Triplett wrote:
> On Tue, Apr 04, 2023 at 05:58:51PM +0800, kernel test robot wrote:
> > reproduce (this is a W=1 build):
> 
> Right, I *really* need to start doing W=1 builds. (Am I missing
> something, or did kernel builds once emit warnings about type mismatches
> on `min` by default?)

I see this warning in a normal ARCH=arm allmodconfig build (i.e.,
without W=1). Perhaps you never did a 32-bit build, since that is the
only way this warning would appear?

> > >> kernel/sys.c:2383:23: warning: comparison of distinct pointer types ('typeof (sizeof (mm->saved_auxv)) *' (aka 'unsigned int *') and 'typeof (len) *' (aka 'unsigned long *')) [-Wcompare-distinct-pointer-types]
> 
> Will fix in v2.
> 

Cheers,
Nathan