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Message-ID: <5543C529.4080203@labbott.name>
Date: Fri, 01 May 2015 11:25:45 -0700
From: Laura Abbott <laura@...bott.name>
To: Hillf Danton <hillf.zj@...baba-inc.com>
CC: 'Russell King' <rmk+kernel@....linux.org.uk>,
linux-kernel <linux-kernel@...r.kernel.org>,
linux@....linux.org.uk
Subject: Re: [patch] ARM: fix module-bound check in setting page attributes
On 3/24/15 9:20 PM, Hillf Danton wrote:
> It was introduced in commit f2ca09f381a59
> (ARM: 8311/1: Don't use is_module_addr in setting page attributes)
>
> We have no need to check start twice, but see if end is also in range.
>
> Signed-off-by: Hillf Danton <hillf.zj@...baba-inc.com>
> ---
>
> --- a/arch/arm/mm/pageattr.c Wed Mar 25 11:55:13 2015
> +++ b/arch/arm/mm/pageattr.c Wed Mar 25 11:57:31 2015
> @@ -52,7 +52,7 @@ static int change_memory_common(unsigned
> if (start < MODULES_VADDR || start >= MODULES_END)
> return -EINVAL;
>
> - if (end < MODULES_VADDR || start >= MODULES_END)
> + if (end < MODULES_VADDR || end >= MODULES_END)
> return -EINVAL;
>
> data.set_mask = set_mask;
> --
>
>
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Acked-by: Laura Abbott <laura@...bott.name>
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