Re: [PATCH] staging: greybus: loopback: Enclose multiple macro statements in do-while loop

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On Tuesday 18 July 2017 04:41 PM, Bryan O'Donoghue wrote:
On 18/07/17 11:56, karthik@xxxxxxxxxxxx wrote:
From: Karthik Tummala <karthik@xxxxxxxxxxxx>

Enclosed multiple macro statements in a do - while loop as per kernel
coding standard, pointed by checkpatch.

Signed-off-by: Karthik Tummala <karthik@xxxxxxxxxxxx>
---
  drivers/staging/greybus/loopback.c | 10 ++++++----
  1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
index 08e2558..c616555 100644
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -176,10 +176,12 @@ static DEVICE_ATTR_RO(name##_##field)
  }                                    \
  static DEVICE_ATTR_RO(name##_avg)
-#define gb_loopback_stats_attrs(field)                \
-    gb_loopback_ro_stats_attr(field, min, u);        \
-    gb_loopback_ro_stats_attr(field, max, u);        \
-    gb_loopback_ro_avg_attr(field)
+#define gb_loopback_stats_attrs(field)                    \
+do {                                    \
+    gb_loopback_ro_stats_attr(field, min, u);            \
+    gb_loopback_ro_stats_attr(field, max, u);            \
+    gb_loopback_ro_avg_attr(field);                    \
+} while (0)
  #define gb_loopback_attr(field, type)                    \
  static ssize_t field##_show(struct device *dev,                \

Macros with multiple statements should be enclosed in a do - while block:

.. code-block:: c

         #define macrofun(a, b, c)                       \
                 do {                                    \
                         if (a == 5)                     \
                                 do_this(b, c);          \
                 } while (0)


I don't think it really applies.

We're declaring functions not inlining executable code.Hi,
It makes sense, thanks for the insight. Please drop this patch

Thanks
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