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authorPhil Carmody <ext-phil.2.carmody@nokia.com>2011-07-14 15:07:13 +0300
committerJiri Kosina <jkosina@suse.cz>2011-07-21 14:10:00 +0200
commit497888cf69bf607ac1fe061a6437e0a670b0022f (patch)
treeac0897eff214f09c89d5f4fbc3c03ef9d010a83c /net/mac80211
parent06b72d06d6b182bdaaaec686dbd8b602949521ee (diff)
downloadlwn-497888cf69bf607ac1fe061a6437e0a670b0022f.tar.gz
lwn-497888cf69bf607ac1fe061a6437e0a670b0022f.zip
treewide: fix potentially dangerous trailing ';' in #defined values/expressions
All these are instances of #define NAME value; or #define NAME(params_opt) value; These of course fail to build when used in contexts like if(foo $OP NAME) while(bar $OP NAME) and may silently generate the wrong code in contexts such as foo = NAME + 1; /* foo = value; + 1; */ bar = NAME - 1; /* bar = value; - 1; */ baz = NAME & quux; /* baz = value; & quux; */ Reported on comp.lang.c, Message-ID: <ab0d55fe-25e5-482b-811e-c475aa6065c3@c29g2000yqd.googlegroups.com> Initial analysis of the dangers provided by Keith Thompson in that thread. There are many more instances of more complicated macros having unnecessary trailing semicolons, but this pile seems to be all of the cases of simple values suffering from the problem. (Thus things that are likely to be found in one of the contexts above, more complicated ones aren't.) Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/mesh_hwmp.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 2b18053070c1..3460108810d5 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -57,29 +57,29 @@ static inline u32 u16_field_get(u8 *preq_elem, int offset, bool ae)
#define PREQ_IE_TTL(x) (*(x + 2))
#define PREQ_IE_PREQ_ID(x) u32_field_get(x, 3, 0)
#define PREQ_IE_ORIG_ADDR(x) (x + 7)
-#define PREQ_IE_ORIG_SN(x) u32_field_get(x, 13, 0);
-#define PREQ_IE_LIFETIME(x) u32_field_get(x, 17, AE_F_SET(x));
-#define PREQ_IE_METRIC(x) u32_field_get(x, 21, AE_F_SET(x));
+#define PREQ_IE_ORIG_SN(x) u32_field_get(x, 13, 0)
+#define PREQ_IE_LIFETIME(x) u32_field_get(x, 17, AE_F_SET(x))
+#define PREQ_IE_METRIC(x) u32_field_get(x, 21, AE_F_SET(x))
#define PREQ_IE_TARGET_F(x) (*(AE_F_SET(x) ? x + 32 : x + 26))
#define PREQ_IE_TARGET_ADDR(x) (AE_F_SET(x) ? x + 33 : x + 27)
-#define PREQ_IE_TARGET_SN(x) u32_field_get(x, 33, AE_F_SET(x));
+#define PREQ_IE_TARGET_SN(x) u32_field_get(x, 33, AE_F_SET(x))
#define PREP_IE_FLAGS(x) PREQ_IE_FLAGS(x)
#define PREP_IE_HOPCOUNT(x) PREQ_IE_HOPCOUNT(x)
#define PREP_IE_TTL(x) PREQ_IE_TTL(x)
#define PREP_IE_ORIG_ADDR(x) (x + 3)
-#define PREP_IE_ORIG_SN(x) u32_field_get(x, 9, 0);
-#define PREP_IE_LIFETIME(x) u32_field_get(x, 13, AE_F_SET(x));
-#define PREP_IE_METRIC(x) u32_field_get(x, 17, AE_F_SET(x));
+#define PREP_IE_ORIG_SN(x) u32_field_get(x, 9, 0)
+#define PREP_IE_LIFETIME(x) u32_field_get(x, 13, AE_F_SET(x))
+#define PREP_IE_METRIC(x) u32_field_get(x, 17, AE_F_SET(x))
#define PREP_IE_TARGET_ADDR(x) (AE_F_SET(x) ? x + 27 : x + 21)
-#define PREP_IE_TARGET_SN(x) u32_field_get(x, 27, AE_F_SET(x));
+#define PREP_IE_TARGET_SN(x) u32_field_get(x, 27, AE_F_SET(x))
#define PERR_IE_TTL(x) (*(x))
#define PERR_IE_TARGET_FLAGS(x) (*(x + 2))
#define PERR_IE_TARGET_ADDR(x) (x + 3)
-#define PERR_IE_TARGET_SN(x) u32_field_get(x, 9, 0);
-#define PERR_IE_TARGET_RCODE(x) u16_field_get(x, 13, 0);
+#define PERR_IE_TARGET_SN(x) u32_field_get(x, 9, 0)
+#define PERR_IE_TARGET_RCODE(x) u16_field_get(x, 13, 0)
#define MSEC_TO_TU(x) (x*1000/1024)
#define SN_GT(x, y) ((long) (y) - (long) (x) < 0)