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Groups > linux.kernel > #1288783
| From | "Geyslan G. Bem" <geyslan@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v3 4/9] usb: host: ehci.h: fix single statement macros |
| Date | 2015-12-10 19:20 +0100 |
| Message-ID | <qEdYS-1hY-17@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
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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[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
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