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Date:   Mon, 23 Jan 2017 19:52:41 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     John Hubbard <jhubbard@...dia.com>
CC:     <akpm@...ux-foundation.org>, <minchan@...nel.org>,
        <mhocko@...nel.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: do not export ioremap_page_range symbol for external
 module

On 2017/1/23 9:30, John Hubbard wrote:
>
>
> On 01/22/2017 05:14 PM, zhong jiang wrote:
>> On 2017/1/22 20:58, zhongjiang wrote:
>>> From: zhong jiang <zhongjiang@...wei.com>
>>>
>>> Recently, I find the ioremap_page_range had been abusing. The improper
>>> address mapping is a issue. it will result in the crash. so, remove
>>> the symbol. It can be replaced by the ioremap_cache or others symbol.
>>>
>>> Signed-off-by: zhong jiang <zhongjiang@...wei.com>
>>> ---
>>>  lib/ioremap.c | 1 -
>>>  1 file changed, 1 deletion(-)
>>>
>>> diff --git a/lib/ioremap.c b/lib/ioremap.c
>>> index 86c8911..a3e14ce 100644
>>> --- a/lib/ioremap.c
>>> +++ b/lib/ioremap.c
>>> @@ -144,4 +144,3 @@ int ioremap_page_range(unsigned long addr,
>>>
>>>      return err;
>>>  }
>>> -EXPORT_SYMBOL_GPL(ioremap_page_range);
>> self nack
>>
>
> heh. What changed your mind?
>
  Very sorry,  I mistake own kernel modules call it directly.  Thank you review
  the patch . I will take your changelog and send it in v2.

  Thanks
  zhongjiang
> .
>


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