linux-kernel - Re: [PATCH] cifs: fix debug format string in cifs_debug_data_proc

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Date:   Fri, 20 Jan 2023 13:17:33 -0600
From:   Steve French <smfrench@...il.com>
To:     Shyam Prasad N <nspmangalore@...il.com>
Cc:     Arnd Bergmann <arnd@...nel.org>, Tom Talpey <tom@...pey.com>,
        Shyam Prasad N <sprasad@...rosoft.com>,
        Arnd Bergmann <arnd@...db.de>, linux-cifs@...r.kernel.org,
        Enzo Matsumiya <ematsumiya@...e.de>,
        Paulo Alcantara <pc@....nz>, samba-technical@...ts.samba.org,
        linux-kernel@...r.kernel.org,
        Ronnie Sahlberg <lsahlber@...hat.com>,
        Steve French <sfrench@...ba.org>
Subject: Re: [PATCH] cifs: fix debug format string in cifs_debug_data_proc_show

merged into cifs-2.6.git for-next

On Thu, Jan 19, 2023 at 7:48 AM Shyam Prasad N via samba-technical
<samba-technical@...ts.samba.org> wrote:
>
> On Thu, Jan 19, 2023 at 4:55 PM Arnd Bergmann <arnd@...nel.org> wrote:
> >
> > From: Arnd Bergmann <arnd@...db.de>
> >
> > Printing a size_t as %lu causes a warning on some architectures:
> >
> > fs/cifs/cifs_debug.c: In function 'cifs_debug_data_proc_show':
> > fs/cifs/cifs_debug.c:478:75: error: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
> >   478 |                                 seq_printf(m, "\t\tWeight (cur,total): (%lu,%lu)"
> >
> > Use the correct %zu format string instead.
> >
> > Fixes: 962a0fd04791 ("cifs: distribute channels across interfaces based on speed")
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> > ---
> >  fs/cifs/cifs_debug.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
> > index f5f07019fc7e..2e644d926e62 100644
> > --- a/fs/cifs/cifs_debug.c
> > +++ b/fs/cifs/cifs_debug.c
> > @@ -475,7 +475,7 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
> >                                 cifs_dump_iface(m, iface);
> >
> >                                 iface_weight = iface->speed / iface_min_speed;
> > -                               seq_printf(m, "\t\tWeight (cur,total): (%lu,%lu)"
> > +                               seq_printf(m, "\t\tWeight (cur,total): (%zu,%zu)"
> >                                            "\n\t\tAllocated channels: %u\n",
> >                                            iface->weight_fulfilled,
> >                                            iface_weight,
> > --
> > 2.39.0
> >
>
> Hi Arnd,
>
> Thanks for pointing this out.
>
> --
> Regards,
> Shyam
>


-- 
Thanks,

Steve