Re: [PATCH 3/4] zsmalloc use zs_handle instead of void *

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On 05/04/2012 12:23 AM, Seth Jennings wrote:

> On 05/03/2012 08:32 AM, Nitin Gupta wrote:
> 
>> On 5/3/12 2:40 AM, Minchan Kim wrote:
>>> We should use zs_handle instead of void * to avoid any
>>> confusion. Without this, users may just treat zs_malloc return value as
>>> a pointer and try to deference it.
>>>
>>> Cc: Dan Magenheimer<dan.magenheimer@xxxxxxxxxx>
>>> Cc: Konrad Rzeszutek Wilk<konrad.wilk@xxxxxxxxxx>
>>> Signed-off-by: Minchan Kim<minchan@xxxxxxxxxx>
>>> ---
>>>   drivers/staging/zcache/zcache-main.c     |    8 ++++----
>>>   drivers/staging/zram/zram_drv.c          |    8 ++++----
>>>   drivers/staging/zram/zram_drv.h          |    2 +-
>>>   drivers/staging/zsmalloc/zsmalloc-main.c |   28
>>> ++++++++++++++--------------
>>>   drivers/staging/zsmalloc/zsmalloc.h      |   15 +++++++++++----
>>>   5 files changed, 34 insertions(+), 27 deletions(-)
>>
>> This was a long pending change. Thanks!
> 
> 
> The reason I hadn't done it before is that it introduces a checkpatch
> warning:
> 
> WARNING: do not add new typedefs
> #303: FILE: drivers/staging/zsmalloc/zsmalloc.h:19:
> +typedef void * zs_handle;
> 


Yes. I did it but I think we are (a) of chapter 5: Typedefs in Documentation/CodingStyle.

 (a) totally opaque objects (where the typedef is actively used to _hide_
     what the object is).

No?

> In addition this particular patch has a checkpatch error:
> 
> ERROR: "foo * bar" should be "foo *bar"
> #303: FILE: drivers/staging/zsmalloc/zsmalloc.h:19:
> +typedef void * zs_handle;


It was my mistake. Will fix.
Thanks!

-- 
Kind regards,
Minchan Kim

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