path: root/scripts
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authorJoe Perches <joe@perches.com>2014-01-23 15:54:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 16:36:57 -0800
commit8c5fcd24a9ea608286816a1508c067c8a512af78 (patch)
tree6d6e2e1af8034d0ccd22b7eb1370a06bf1783458 /scripts
parentcf0744021c5d5de54d2c66e2020c6de2fe800264 (diff)
checkpatch: more comprehensive split strings warning
The current checkpatch test for split strings does not find several cases that should be found. For instance: /* Else poor success; go back to mode in "active" table */ } else { IWL_DEBUG_RATE(mvm, - "LQ: GOING BACK TO THE OLD TABLE suc=%d cur-tpt=%d old-tpt=%d\n", + "GOING BACK TO THE OLD TABLE: SR %d " + "cur-tpt %d old-tpt %d\n", window->success_ratio, window->average_tpt, lq_sta->last_tpt); does not currently emit a warning. Improve the test to find these cases. Add more exceptions to reduce false positives for assembly and octal/hex string constants. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
1 files changed, 4 insertions, 8 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9fb30b15c9dc..59fa00e97878 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2049,16 +2049,12 @@ sub process {
# Check for user-visible strings broken across lines, which breaks the ability
-# to grep for the string. Limited to strings used as parameters (those
-# following an open parenthesis), which almost completely eliminates false
-# positives, as well as warning only once per parameter rather than once per
-# line of the string. Make an exception when the previous string ends in a
-# newline (multiple lines in one string constant) or \n\t (common in inline
-# assembly to indent the instruction on the following line).
+# to grep for the string. Make exceptions when the previous string ends in a
+# newline (multiple lines in one string constant) or '\t', '\r', ';', or '{'
+# (common in inline assembly) or is a octal \123 or hexadecimal \xaf value
if ($line =~ /^\+\s*"/ &&
$prevline =~ /"\s*$/ &&
- $prevline =~ /\(/ &&
- $prevrawline !~ /\\n(?:\\t)*"\s*$/) {
+ $prevrawline !~ /(?:\\(?:[ntr]|[0-7]{1,3}|x[0-9a-fA-F]{1,2})|;\s*|\{\s*)"\s*$/) {
"quoted string split across lines\n" . $hereprev);

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