linux-kernel - Re: [PATCH] docs: crypto: async-tx-api: fix broken code example

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Date: Wed, 29 May 2024 10:10:06 +0200
From: Ahmad Fatoum <a.fatoum@...gutronix.de>
To: Andre Noll <maan@...bingen.mpg.de>
Cc: Dan Williams <dan.j.williams@...el.com>,
 Herbert Xu <herbert@...dor.apana.org.au>,
 "David S. Miller" <davem@...emloft.net>, Jonathan Corbet <corbet@....net>,
 Maciej Sosnowski <maciej.sosnowski@...el.com>,
 Andre Noll <maan@...temlinux.org>, linux-crypto@...r.kernel.org,
 linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
 kernel@...gutronix.de
Subject: Re: [PATCH] docs: crypto: async-tx-api: fix broken code example

Hello Andre,

On 23.05.24 16:17, Andre Noll wrote:
> On Thu, May 23, 15:18, Ahmad Fatoum wrote
>> The code example fails to compile:
>>
>>   1) ddr_conv is defined twice, once as a VLA, which have been phased out
> 
>        addr_conv
>>
>>   2) submit is not a pointer, but is still dereferenced with ->
> 
> 3) The first call to async_xor() lacked the trailing semicolon.
> 
>> Fix these issues and while at it, make the functions static as users
>> are unlikely to export them.
> 
> No objections, but please don't consider me authoritative. Two nits
> below, FWIW.

Oh, thanks for catching these. I just sent a v2 with your feedback
incorporated including the nitpicks.

Cheers,
Ahmad

> 
>> --- a/Documentation/crypto/async-tx-api.rst
>> +++ b/Documentation/crypto/async-tx-api.rst
>> @@ -150,38 +150,38 @@ of an operation.
>>  Perform a xor->copy->xor operation where each operation depends on the
>>  result from the previous operation::
> 
> Maybe add
> 
> #include <linux/async_tx.h>
> 
>>  
>> -    void callback(void *param)
>> +    static void callback(void *param)
>>      {
>>  	    struct completion *cmp = param;
>>  
>>  	    complete(cmp);
>>      }
> 
> This could be simplified to
> 
> static void callback(void *param)
> {
> 	complete(param);
> }
> 
> Best
> Andre

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