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authorPhil Carmody <ext-phil.2.carmody@nokia.com>2011-07-14 08:07:13 -0400
committerJiri Kosina <jkosina@suse.cz>2011-07-21 08:10:00 -0400
commit497888cf69bf607ac1fe061a6437e0a670b0022f (patch)
treeac0897eff214f09c89d5f4fbc3c03ef9d010a83c /include/scsi/scsi.h
parent06b72d06d6b182bdaaaec686dbd8b602949521ee (diff)
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 'include/scsi/scsi.h')
-rw-r--r--include/scsi/scsi.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 3668903e397b..8001ae4cd7ba 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -495,7 +495,7 @@ static inline int scsi_is_wlun(unsigned int lun)
495 495
496#define sense_class(sense) (((sense) >> 4) & 0x7) 496#define sense_class(sense) (((sense) >> 4) & 0x7)
497#define sense_error(sense) ((sense) & 0xf) 497#define sense_error(sense) ((sense) & 0xf)
498#define sense_valid(sense) ((sense) & 0x80); 498#define sense_valid(sense) ((sense) & 0x80)
499 499
500/* 500/*
501 * default timeouts 501 * default timeouts