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checkpatch: add test for consecutive string fragments

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Emit a warning when single line string coalescing occurs.

Code that uses compiler string concatenation on a single line like:

    printk("foo" "bar");

is generally better to read concatenated like:

    printk("foobar");

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2014-12-10 15:51:59 -08:00 committed by Linus Torvalds
parent 0ab9019184
commit 90ad30e5b2
1 changed files with 6 additions and 0 deletions
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6
scripts/checkpatch.pl
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@ -4464,6 +4464,12 @@ sub process {
"Concatenated strings should use spaces between elements\n" . $herecurr);
}
# uncoalesced string fragments
if ($line =~ /"X*"\s*"/) {
WARN("STRING_FRAGMENTS",
"Consecutive strings are generally better as a single string\n" . $herecurr);
}
# warn about #if 0
if ($line =~ /^.\s*\#\s*if\s+0\b/) {
CHK("REDUNDANT_CODE",