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From: Sergei Zviagintsev <sergei@s15v.net>
Date: Wed, 10 Jun 2015 00:00:01 +0300
Subject: [PATCH] Documentation/kdbus: fix operator precedence issue in
KDBUS_ITEM_NEXT macro
`item' argument in KDBUS_ITEM_NEXT macro example is not enclosed into
parentheses when the cast operator is applied, which leads to improper
type conversion if `item' is supplied as a complex expression, e.g.
KDBUS_ITEM_NEXT(condition ? a : b)
Use parentheses properly to guarantee right precedence.
Signed-off-by: Sergei Zviagintsev <sergei@s15v.net>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
Documentation/kdbus/kdbus.item.xml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/kdbus/kdbus.item.xml b/Documentation/kdbus/kdbus.item.xml
index 09f8b903116f..b0eeeef995af 100644
--- a/Documentation/kdbus/kdbus.item.xml
+++ b/Documentation/kdbus/kdbus.item.xml
@@ -69,7 +69,7 @@
#define KDBUS_ALIGN8(val) (((val) + 7) & ~7)
#define KDBUS_ITEM_NEXT(item) \
- (typeof(item))(((uint8_t *)item) + KDBUS_ALIGN8((item)->size))
+ (typeof(item))((uint8_t *)(item) + KDBUS_ALIGN8((item)->size))
#define KDBUS_ITEM_FOREACH(item, head, first) \
for (item = (head)->first; \
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