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[PATCH v3 4/9] usb: host: ehci.h: fix single statement macros

Started by"Geyslan G. Bem" <geyslan@gmail.com>
First post2015-12-10 19:20 +0100
Last post2015-12-11 22:30 +0100
Articles 4 — 2 participants

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  [PATCH v3 4/9] usb: host: ehci.h: fix single statement macros "Geyslan G. Bem" <geyslan@gmail.com> - 2015-12-10 19:20 +0100
    Re: [PATCH v3 4/9] usb: host: ehci.h: fix single statement macros Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-12-11 21:30 +0100
      Re: [PATCH v3 4/9] usb: host: ehci.h: fix single statement macros "Geyslan G. Bem" <geyslan@gmail.com> - 2015-12-11 22:00 +0100
        Re: [PATCH v3 4/9] usb: host: ehci.h: fix single statement macros "Geyslan G. Bem" <geyslan@gmail.com> - 2015-12-11 22:30 +0100

#1288783 — [PATCH v3 4/9] usb: host: ehci.h: fix single statement macros

From"Geyslan G. Bem" <geyslan@gmail.com>
Date2015-12-10 19:20 +0100
Subject[PATCH v3 4/9] usb: host: ehci.h: fix single statement macros
Message-ID<qEdYS-1hY-17@gated-at.bofh.it>
Don't use the 'do {} while (0)' wrapper in a single statement macro.

Caught by checkpatch: "WARNING: Single statement macros should not
use a do {} while (0) loop"

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
---
Change in v3:
 - There's no need to evaluate COUNT(x) in #ifdef EHCI_STATS
   false branch. Thus an empty #define is the choice.
---
 drivers/usb/host/ehci.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index cfeebd8..c86194f 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -244,9 +244,9 @@ struct ehci_hcd {			/* one per controller */
 	/* irq statistics */
 #ifdef EHCI_STATS
 	struct ehci_stats	stats;
-#	define COUNT(x) do { (x)++; } while (0)
+#	define COUNT(x) ((x)++)
 #else
-#	define COUNT(x) do {} while (0)
+#	define COUNT(x)
 #endif
 
 	/* debug files */
-- 
2.6.3

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#1289887

FromGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Date2015-12-11 21:30 +0100
Message-ID<qECue-Pv-17@gated-at.bofh.it>
In reply to#1288783
On Thu, Dec 10, 2015 at 03:18:19PM -0300, Geyslan G. Bem wrote:
> Don't use the 'do {} while (0)' wrapper in a single statement macro.
> 
> Caught by checkpatch: "WARNING: Single statement macros should not
> use a do {} while (0) loop"
> 
> Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
> ---
> Change in v3:
>  - There's no need to evaluate COUNT(x) in #ifdef EHCI_STATS
>    false branch. Thus an empty #define is the choice.

Odd numbering scheme of patches, I can't figure this out...

Can you resend this whole series so I know I got it all correct?

thanks,

greg k-h
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#1289895

From"Geyslan G. Bem" <geyslan@gmail.com>
Date2015-12-11 22:00 +0100
Message-ID<qECXg-10Z-11@gated-at.bofh.it>
In reply to#1289887
2015-12-11 13:30 GMT-03:00 Greg Kroah-Hartman <gregkh@linuxfoundation.org>:
> On Thu, Dec 10, 2015 at 03:18:19PM -0300, Geyslan G. Bem wrote:
>> Don't use the 'do {} while (0)' wrapper in a single statement macro.
>>
>> Caught by checkpatch: "WARNING: Single statement macros should not
>> use a do {} while (0) loop"
>>
>> Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
>> ---
>> Change in v3:
>>  - There's no need to evaluate COUNT(x) in #ifdef EHCI_STATS
>>    false branch. Thus an empty #define is the choice.
>
> Odd numbering scheme of patches, I can't figure this out...
Greg,

I sent new versions only to modified ones.
9 is v1.
4 is v3.
rest is v2.

Next time I'll send new versions for all.

>
> Can you resend this whole series so I know I got it all correct?
I hope so. :-) Messing around with branches and merges here. I tell you soon.

>
> thanks,
>
> greg k-h



-- 
Regards,

Geyslan G. Bem
hackingbits.com
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#1289919

From"Geyslan G. Bem" <geyslan@gmail.com>
Date2015-12-11 22:30 +0100
Message-ID<qEDqi-1qF-19@gated-at.bofh.it>
In reply to#1289895
2015-12-11 17:55 GMT-03:00 Geyslan G. Bem <geyslan@gmail.com>:
> 2015-12-11 13:30 GMT-03:00 Greg Kroah-Hartman <gregkh@linuxfoundation.org>:
>> On Thu, Dec 10, 2015 at 03:18:19PM -0300, Geyslan G. Bem wrote:
>>> Don't use the 'do {} while (0)' wrapper in a single statement macro.
>>>
>>> Caught by checkpatch: "WARNING: Single statement macros should not
>>> use a do {} while (0) loop"
>>>
>>> Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
>>> ---
>>> Change in v3:
>>>  - There's no need to evaluate COUNT(x) in #ifdef EHCI_STATS
>>>    false branch. Thus an empty #define is the choice.
>>
>> Odd numbering scheme of patches, I can't figure this out...
> Greg,
>
> I sent new versions only to modified ones.
> 9 is v1.
> 4 is v3.
> rest is v2.
>
> Next time I'll send new versions for all.
>
>>
>> Can you resend this whole series so I know I got it all correct?
> I hope so. :-) Messing around with branches and merges here. I tell you soon.

Greg, please, grab them.

[PATCH resend 0/9] usb: host: ehci.h cleanup


>
>>
>> thanks,
>>
>> greg k-h
>
>
>
> --
> Regards,
>
> Geyslan G. Bem
> hackingbits.com



-- 
Regards,

Geyslan G. Bem
hackingbits.com
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