linux-kernel - Re: [PATCH 02/26] octeon_ep: use array

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Message-ID: <36d9998f-e8b1-58cb-9b0a-97273b5eb91b@wanadoo.fr>
Date:   Sun, 25 Jun 2023 22:32:27 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Julia Lawall <julia.lawall@...ia.fr>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Veerasenareddy Burru <vburru@...vell.com>,
        keescook@...omium.org, kernel-janitors@...r.kernel.org,
        Abhijit Ayarekar <aayarekar@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, corbet@....net
Subject: Re: [PATCH 02/26] octeon_ep: use array_size

Le 25/06/2023 à 22:25, Julia Lawall a écrit :
> 
> 
> On Sun, 25 Jun 2023, Christophe JAILLET wrote:
> 
>> Le 25/06/2023 à 00:28, Jakub Kicinski a écrit :
>>> On Fri, 23 Jun 2023 23:14:33 +0200 Julia Lawall wrote:
>>>> -	oq->buff_info = vzalloc(oq->max_count * OCTEP_OQ_RECVBUF_SIZE);
>>>> +	oq->buff_info = vzalloc(array_size(oq->max_count,
>>>> OCTEP_OQ_RECVBUF_SIZE));
>>>
>>> vcalloc seems to exist, is there a reason array_size() is preferred?
>>
>> Hi,
>>
>> just for your information, I've just sent [1].
>>
>> CJ
>>
>> [1]:
>> https://lore.kernel.org/all/3484e46180dd2cf05d993ff1a78b481bc2ad1f71.1687723931.git.christophe.jaillet@wanadoo.fr/
> 
> For some reason, I have only received Christophe's mail, not Jakub's...
> 
> In any case, thanks for pointing out the existence of these functions.  I
> just redid what Kees did in 2018, when I guess these functions didn't
> exist.  I will look more carefully to see what functions are now available
> and resend the whole thing.

Hi,

should you want to go 1 step further and simplify some code:

git grep v[mz]alloc.*array_size\( | wc -l
174

CJ

> 
> Thanks!
> 
> julia