linux-kernel - Re: [PATCH] nfs4: The difference of 2 pointers is size

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <AANLkTimyNXV9K7hfz9CzmHa8CYMYdhi+zOgZzAT+CesQ@mail.gmail.com>
Date:	Thu, 28 Oct 2010 20:38:33 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Trond Myklebust <Trond.Myklebust@...app.com>,
	Benny Halevy <bhalevy@...asas.com>, linux-nfs@...r.kernel.org,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] nfs4: The difference of 2 pointers is size_t

On Thu, Oct 28, 2010 at 20:25, Andrew Morton <akpm@...ux-foundation.org> wrote:
> On Thu, 28 Oct 2010 20:06:19 +0200 (CEST)
> Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
>> On m68k, which is 32-bit:
>>
>> fs/nfs/nfs4proc.c: In function ___nfs41_sequence_done___:
>> fs/nfs/nfs4proc.c:432: warning: format ___%ld___ expects type ___long int___, but argument 3 has type ___int___
>> fs/nfs/nfs4proc.c: In function ___nfs4_setup_sequence___:
>> fs/nfs/nfs4proc.c:576: warning: format ___%ld___ expects type ___long int___, but argument 5 has type ___int___
>>
>> On 32-bit, size_t is int; on 64-bit, size_t is long.
>>
>> Introduced by commit dfb4f309830359352539919f23accc59a20a3758 ("NFSv4.1: keep
>> seq_res.sr_slot as pointer rather than an index")
>>
>> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
>> ---
>>  fs/nfs/nfs4proc.c |    4 ++--
>>  1 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
>> index 32c8758..80229dc 100644
>> --- a/fs/nfs/nfs4proc.c
>> +++ b/fs/nfs/nfs4proc.c
>> @@ -429,7 +429,7 @@ static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *
>>                * returned NFS4ERR_DELAY as per Section 2.10.6.2
>>                * of RFC5661.
>>                */
>> -             dprintk("%s: slot=%ld seq=%d: Operation in progress\n",
>> +             dprintk("%s: slot=%zd seq=%d: Operation in progress\n",
>>                       __func__,
>>                       res->sr_slot - res->sr_session->fc_slot_table.slots,
>>                       res->sr_slot->seq_nr);
>> @@ -573,7 +573,7 @@ int nfs4_setup_sequence(const struct nfs_server *server,
>>               goto out;
>>       }
>>
>> -     dprintk("--> %s clp %p session %p sr_slot %ld\n",
>> +     dprintk("--> %s clp %p session %p sr_slot %zd\n",
>>               __func__, session->clp, session, res->sr_slot ?
>>                       res->sr_slot - session->fc_slot_table.slots : -1);
>>
>
> I think it should formally be %t, for a ptrdiff_t.

You're correct.

I didn't know we "did" %t. I almost have enough fingers and toes to
count its users ;-)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/