linux-kernel - Re: [PATCH] powerpc/64s: Fix possible corruption on big endian due to pgd/pud

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Message-ID: <87pnrran89.fsf@igel.home>
Date:   Sat, 16 Feb 2019 14:15:18 +0100
From:   Andreas Schwab <schwab@...ux-m68k.org>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     linuxppc-dev@...abs.org, linux-mm@...ck.org, erhard_f@...lbox.org,
        jack@...e.cz, aneesh.kumar@...ux.vnet.ibm.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] powerpc/64s: Fix possible corruption on big endian due to pgd/pud_present()

On Feb 14 2019, Michael Ellerman <mpe@...erman.id.au> wrote:

> The fix is simple, we need to convert the result of the bitwise && to
> an int before returning it.

Alternatively, the return type could be changed to bool, so that the
compiler does the right thing by itself.

Andreas.

-- 
Andreas Schwab, schwab@...ux-m68k.org
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