[PATCH v1 1/1] smb: client: transport: Fix debug printing in __release_mid()

[PATCH v1 1/1] smb: client: transport: Fix debug printing in __release_mid()

[Andy Shevchenko]

Long time ago during upgrading printk():s to the respective pr_<level>()
calls one misconversion happened and nobody has noticed that. So,
previously printk(KERN_DEBUG) + printk() worked as one long debug print
since the trailing '\n' is only present in the followup printk() format
string. The culprit change missed that and split the message to two on
the different levels. Restore the original behaviour to make users be
less confused in the most likely never happen cases of partially getting
that message.

Fixes: 0b456f04bcdf ("cifs: convert printk(LEVEL...) to pr_<level>")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 fs/smb/client/transport.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/fs/smb/client/transport.c b/fs/smb/client/transport.c
index fdf4e50c27ce..e266859818a4 100644
--- a/fs/smb/client/transport.c
+++ b/fs/smb/client/transport.c
@@ -101,12 +101,11 @@ void __release_mid(struct TCP_Server_Info *server, struct mid_q_entry *midEntry)
 		trace_smb3_slow_rsp(smb_cmd, midEntry->mid, midEntry->pid,
 			       midEntry->when_sent, midEntry->when_received);
 		if (cifsFYI & CIFS_TIMER) {
-			pr_debug("slow rsp: cmd %d mid %llu",
-				 midEntry->command, midEntry->mid);
-			cifs_info("A: 0x%lx S: 0x%lx R: 0x%lx\n",
-				  now - midEntry->when_alloc,
-				  now - midEntry->when_sent,
-				  now - midEntry->when_received);
+			pr_debug("slow rsp: cmd %d mid %llu A: 0x%lx S: 0x%lx R: 0x%lx\n",
+				 midEntry->command, midEntry->mid,
+				 now - midEntry->when_alloc,
+				 now - midEntry->when_sent,
+				 now - midEntry->when_received);
 		}
 	}
 #endif
-- 
2.50.1

Re: [PATCH v1 1/1] smb: client: transport: Fix debug printing in __release_mid()

[Yunseong Kim]

Hi Andy,

On Tue, 25 Aug 2026 10:30:43 +0200 Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:

> Long time ago during upgrading printk():s to the respective pr_<level>()
> calls one misconversion happened and nobody has noticed that. So,
> previously printk(KERN_DEBUG) + printk() worked as one long debug print
> since the trailing '\n' is only present in the followup printk() format
> string. The culprit change missed that and split the message to two on
> the different levels. Restore the original behaviour to make users be
> less confused in the most likely never happen cases of partially getting
> that message.
> 
> Fixes: 0b456f04bcdf ("cifs: convert printk(LEVEL...) to pr_<level>")
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  fs/smb/client/transport.c | 11 +++++------
>  1 file changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/fs/smb/client/transport.c b/fs/smb/client/transport.c
> index fdf4e50c27ce..e266859818a4 100644
> --- a/fs/smb/client/transport.c
> +++ b/fs/smb/client/transport.c
> @@ -101,12 +101,11 @@ void __release_mid(struct TCP_Server_Info *server, struct mid_q_entry *midEntry)
>  		trace_smb3_slow_rsp(smb_cmd, midEntry->mid, midEntry->pid,
>  			       midEntry->when_sent, midEntry->when_received);
>  		if (cifsFYI & CIFS_TIMER) {
> -			pr_debug("slow rsp: cmd %d mid %llu",
> -				 midEntry->command, midEntry->mid);
> -			cifs_info("A: 0x%lx S: 0x%lx R: 0x%lx\n",
> -				  now - midEntry->when_alloc,
> -				  now - midEntry->when_sent,
> -				  now - midEntry->when_received);
> +			pr_debug("slow rsp: cmd %d mid %llu A: 0x%lx S: 0x%lx R: 0x%lx\n",
> +				 midEntry->command, midEntry->mid,

The change looks correct to me.

One minor suggestion: could the format string be split using adjacent
string literals to avoid the long source line?

    pr_debug("slow rsp: cmd %d mid %llu "
             "A: 0x%lx S: 0x%lx R: 0x%lx\n",
             ...);

> +				 now - midEntry->when_alloc,
> +				 now - midEntry->when_sent,
> +				 now - midEntry->when_received);
>  		}
>  	}
>  #endif
> -- 
> 2.50.1
> 
> 

Thank you!

Best regards,
Yunseong

Re: [PATCH v1 1/1] smb: client: transport: Fix debug printing in __release_mid()

[Andy Shevchenko]

On Wed, Aug 26, 2026 at 01:34:06AM +0200, Yunseong Kim wrote:
> On Tue, 25 Aug 2026 10:30:43 +0200 Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:

...

> > -			cifs_info("A: 0x%lx S: 0x%lx R: 0x%lx\n",
> > -				  now - midEntry->when_alloc,
> > -				  now - midEntry->when_sent,
> > -				  now - midEntry->when_received);
> > +			pr_debug("slow rsp: cmd %d mid %llu A: 0x%lx S: 0x%lx R: 0x%lx\n",
> > +				 midEntry->command, midEntry->mid,
> 
> The change looks correct to me.
> 
> One minor suggestion: could the format string be split using adjacent
> string literals to avoid the long source line?
> 
>     pr_debug("slow rsp: cmd %d mid %llu "
>              "A: 0x%lx S: 0x%lx R: 0x%lx\n",
>              ...);

No, the idea is to have long string literals. This was exceptionally done
somewhat 15+ years ago.

See f4c014c0dede ("checkpatch: allow printk strings to exceed 80 characters to
maintain their searchability") as the result of the discussion started here:
https://lore.kernel.org/lkml/20080222132612.GA11717@basil.nowhere.org/

> > +				 now - midEntry->when_alloc,
> > +				 now - midEntry->when_sent,
> > +				 now - midEntry->when_received);

-- 
With Best Regards,
Andy Shevchenko