2023-01-19 11:59:24

by Arnd Bergmann

[permalink] [raw]
Subject: [PATCH] cifs: fix debug format string in cifs_debug_data_proc_show

From: Arnd Bergmann <[email protected]>

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 <[email protected]>
---
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


2023-01-19 14:25:35

by Shyam Prasad N

[permalink] [raw]
Subject: Re: [PATCH] cifs: fix debug format string in cifs_debug_data_proc_show

On Thu, Jan 19, 2023 at 4:55 PM Arnd Bergmann <[email protected]> wrote:
>
> From: Arnd Bergmann <[email protected]>
>
> 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 <[email protected]>
> ---
> 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

2023-01-20 20:41:32

by Steve French

[permalink] [raw]
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
<[email protected]> wrote:
>
> On Thu, Jan 19, 2023 at 4:55 PM Arnd Bergmann <[email protected]> wrote:
> >
> > From: Arnd Bergmann <[email protected]>
> >
> > 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 <[email protected]>
> > ---
> > 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