From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Dave Hansen <dave@sr71.net>
Cc: linux-kernel@vger.kernel.org, dave.hansen@linux.intel.com,
akpm@linux-foundation.org, tglx@linutronix.de, mingo@elte.hu,
hpa@zytor.com, peterz@infradead.org, linux-next@vger.kernel.org,
deller@gmx.de
Subject: Re: [PATCH] [v3] x86, pkeys: fix siginfo ABI breakage from new field
Date: Tue, 1 Mar 2016 09:33:17 +1100 [thread overview]
Message-ID: <20160301093317.4afe0268@canb.auug.org.au> (raw)
In-Reply-To: <20160229221733.DC2C56B7@viggo.jf.intel.com>
Hi Dave,
On Mon, 29 Feb 2016 14:17:33 -0800 Dave Hansen <dave@sr71.net> wrote:
>
> To fix this, we replace the u64 with an '__u32'. The __u32 is
> guaranteed to union well with the pointers from _addr_bnd. It is
> also plenty large enough to store the 16-bit pkey we have today
> on x86.
That looks better, thanks.
--
Cheers,
Stephen Rothwell
next prev parent reply other threads:[~2016-02-29 22:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-29 22:17 Dave Hansen
2016-02-29 22:33 ` Stephen Rothwell [this message]
2016-03-01 7:40 ` Ingo Molnar
2016-03-01 8:09 ` Ingo Molnar
2016-03-01 12:48 ` Dave Hansen
2016-03-01 9:39 ` Ingo Molnar
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