linux-kernel - Re: [patch] ARM: fix module-bound check in setting page attributes

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Message-ID: <074401d0710d$2b9198a0$82b4c9e0$@alibaba-inc.com>
Date:	Tue, 07 Apr 2015 16:30:56 +0800
From:	"Hillf Danton" <hillf.zj@...baba-inc.com>
To:	"Hillf Danton" <hillf.zj@...baba-inc.com>,
	"'Laura Abbott'" <lauraa@...eaurora.org>
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

Ping
> 
> 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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