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

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Date:   Sun, 25 Jun 2023 22:57:06 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Christophe JAILLET <christophe.jaillet@...adoo.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



On Sun, 25 Jun 2023, Christophe JAILLET wrote:

> 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

Yes, thanks for the suggestion.

julia

>
> CJ
>
> >
> > Thanks!
> >
> > julia
>
>