netdev - Re: [PATCH] net: sched: One function call less in em_meta

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Date:	Wed, 04 Feb 2015 10:54:14 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	David Miller <davem@...emloft.net>
CC:	Jamal Hadi Salim <jhs@...atatu.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH] net: sched: One function call less in em_meta_change()
 after error detection

>> The meta_delete() function could be called in four cases by the
>> em_meta_change() function during error handling even if the passed
>> variable "meta" contained still a null pointer.
>>
>> * This implementation detail could be improved by adjustments for jump labels.
>>
>> * Let us return immediately after the first failed function call according to
>>   the current Linux coding style convention.
>>
>> * Let us delete also unnecessary checks for the variables "err" and
>>   "meta" there.
> 
> I kind of like the way the code is now, branching to the end of the function
> even when cleanups are not necessary.

I would appreciate if the affected exception handling can become also
a bit more efficient.

Regards,
Markus

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