Re: [PATCH v2] net: dsa: Remove VLA usage

From: David Miller
Date: Wed Jul 18 2018 - 18:09:02 EST


From: Andrew Lunn <andrew@xxxxxxx>
Date: Wed, 18 Jul 2018 22:37:25 +0200

> On Thu, Jul 19, 2018 at 05:33:33AM +0900, David Miller wrote:
>> From: Kees Cook <keescook@xxxxxxxxxxxx>
>> Date: Mon, 16 Jul 2018 21:10:34 -0700
>>
>> > From: Salvatore Mesoraca <s.mesoraca16@xxxxxxxxx>
>> >
>> > We avoid 2 VLAs by using a pre-allocated field in dsa_switch. We also
>> > try to avoid dynamic allocation whenever possible (when using fewer than
>> > bits-per-long ports, which is the common case).
>> >
>> > Link: http://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@xxxxxxxxxxxxxx
>> > Link: http://lkml.kernel.org/r/20180505185145.GB32630@xxxxxxx
>> > Signed-off-by: Salvatore Mesoraca <s.mesoraca16@xxxxxxxxx>
>> > [kees: tweak commit subject and message slightly]
>> > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
>>
>> Florian and Andrew, please review.
>
> Last time there was some discussion of just always allocating it to
> make the code simpler. But the extra complexity is O.K.
>
> Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

Great, applied, thanks!