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Date:   Tue, 19 Feb 2019 14:15:41 -0600
From:   Segher Boessenkool <segher@kernel.crashing.org>
To:     Michael Ellerman <mpe@ellerman.id.au>
Cc:     Balbir Singh <bsingharora@gmail.com>, erhard_f@mailbox.org,
        jack@suse.cz, linuxppc-dev@ozlabs.org,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        aneesh.kumar@linux.vnet.ibm.com
Subject: Re: [PATCH] powerpc/64s: Fix possible corruption on big endian due to pgd/pud_present()
Message-ID: <20190219201539.GT14180@gate.crashing.org>
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On Mon, Feb 18, 2019 at 11:49:18AM +1100, Michael Ellerman wrote:
> Balbir Singh <bsingharora@gmail.com> writes:
> > Fair enough, my point was that the compiler can help out. I'll see what
> > -Wconversion finds on my local build :)
> 
> I get about 43MB of warnings here :)

Yes, -Wconversion complains about a lot of things that are idiomatic C.
There is a reason -Wconversion is not in -Wall or -Wextra.


Segher