The patch titled
Subject: checkpatch: improve the unnecessary initialisers tests
has been added to the -mm tree. Its filename is
checkpatch-improve-the-unnecessary-initialisers-tests.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-improve-the-unnecessary-initialisers-tests.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-improve-the-unnecessary-initialisers-tests.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
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------------------------------------------------------
From: Joe Perches <joe@xxxxxxxxxxx>
Subject: checkpatch: improve the unnecessary initialisers tests
Global and static variables don't need to be initialized to 0.
There is already a test for this but the output message doesn't
mention booleans initialized to false.
Improve the output message and the test by adding various forms
with possible specific integer types and possible multiple zeros.
Miscellanea:
o Use a variable to hold the possible 0 test
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Shailendra Verma <shailendra.v@xxxxxxxxxxx>
Tested-by: Shailendra Verma <shailendra.v@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/checkpatch.pl | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff -puN scripts/checkpatch.pl~checkpatch-improve-the-unnecessary-initialisers-tests scripts/checkpatch.pl
--- a/scripts/checkpatch.pl~checkpatch-improve-the-unnecessary-initialisers-tests
+++ a/scripts/checkpatch.pl
@@ -370,6 +370,8 @@ our $typeTypedefs = qr{(?x:
$typeKernelTypedefs\b
)};
+our $zero_initializer = qr{(?:(?:0[xX])?0+$Int_type?|NULL|false)\b};
+
our $logFunctions = qr{(?x:
printk(?:_ratelimited|_once|)|
(?:[a-z0-9]+_){1,2}(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)|
@@ -3334,21 +3336,20 @@ sub process {
}
# check for global initialisers.
- if ($line =~ /^\+$Type\s*$Ident(?:\s+$Modifier)*\s*=\s*(?:0|NULL|false)\s*;/) {
+ if ($line =~ /^\+$Type\s*$Ident(?:\s+$Modifier)*\s*=\s*($zero_initializer)\s*;/) {
if (ERROR("GLOBAL_INITIALISERS",
- "do not initialise globals to 0 or NULL\n" .
- $herecurr) &&
+ "do not initialise globals to $1\n" . $herecurr) &&
$fix) {
- $fixed[$fixlinenr] =~ s/(^.$Type\s*$Ident(?:\s+$Modifier)*)\s*=\s*(0|NULL|false)\s*;/$1;/;
+ $fixed[$fixlinenr] =~ s/(^.$Type\s*$Ident(?:\s+$Modifier)*)\s*=\s*$zero_initializer\s*;/$1;/;
}
}
# check for static initialisers.
- if ($line =~ /^\+.*\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
+ if ($line =~ /^\+.*\bstatic\s.*=\s*($zero_initializer)\s*;/) {
if (ERROR("INITIALISED_STATIC",
- "do not initialise statics to 0 or NULL\n" .
+ "do not initialise statics to $1\n" .
$herecurr) &&
$fix) {
- $fixed[$fixlinenr] =~ s/(\bstatic\s.*?)\s*=\s*(0|NULL|false)\s*;/$1;/;
+ $fixed[$fixlinenr] =~ s/(\bstatic\s.*?)\s*=\s*$zero_initializer\s*;/$1;/;
}
}
_
Patches currently in -mm which might be from joe@xxxxxxxxxxx are
checkpatch-improve-tests-for-fixes-long-lines-and-stack-dumps-in-commit-log.patch
checkpatch-improve-the-unnecessary-initialisers-tests.patch
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