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authorSven Eckelmann <sven@narfation.org>2016-09-21 09:23:50 +0200
committerSimon Wunderlich <sw@simonwunderlich.de>2016-10-19 08:37:54 +0200
commit4c7da0f6dbcde2431d773ce03cde5e7abede54e0 (patch)
tree74cca95977875552284b882a393ef10fc5d94115 /net/batman-adv/main.h
parent507b37cf71c86b7ceaebf333b8ae488a600f5afd (diff)
downloadlinux-4c7da0f6dbcde2431d773ce03cde5e7abede54e0.tar.bz2
batman-adv: Avoid precedence issues in macros
It must be avoided that arguments to a macro are evaluated ungrouped (which enforces normal operator precendence). Otherwise the result of the macro is not well defined. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'net/batman-adv/main.h')
-rw-r--r--net/batman-adv/main.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 6a2328d17709..daddca94feb8 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -199,8 +199,8 @@ struct packet_type;
struct seq_file;
struct sk_buff;
-#define BATADV_PRINT_VID(vid) ((vid & BATADV_VLAN_HAS_TAG) ? \
- (int)(vid & VLAN_VID_MASK) : -1)
+#define BATADV_PRINT_VID(vid) (((vid) & BATADV_VLAN_HAS_TAG) ? \
+ (int)((vid) & VLAN_VID_MASK) : -1)
extern struct list_head batadv_hardif_list;