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authorJoe Perches <joe@perches.com>2021-02-25 17:21:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-26 09:41:04 -0800
commit0972b8bfe0de8c0f05796aceb8f2428b0efb20cd (patch)
tree6a3dae50dd7396af95ec5de023c1fcc6c114fe07 /scripts
parentadb2da82fcf99b6006fbaf3e3cd12649365fc967 (diff)
checkpatch: improve TYPECAST_INT_CONSTANT test message
Improve the TYPECAST_INT_CONSTANT test by showing the suggested conversion for various type of uses like (unsigned int)1 to 1U. Link: https://lkml.kernel.org/r/ecefe8dcb93fe7028311b69dd297ba52224233d4.camel@perches.com Signed-off-by: Joe Perches <joe@perches.com> Cc: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/checkpatch.pl20
1 files changed, 10 insertions, 10 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 736129c21c16..a04df2657d49 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -6518,18 +6518,18 @@ sub process {
if ($line =~ /(\(\s*$C90_int_types\s*\)\s*)($Constant)\b/) {
my $cast = $1;
my $const = $2;
+ my $suffix = "";
+ my $newconst = $const;
+ $newconst =~ s/${Int_type}$//;
+ $suffix .= 'U' if ($cast =~ /\bunsigned\b/);
+ if ($cast =~ /\blong\s+long\b/) {
+ $suffix .= 'LL';
+ } elsif ($cast =~ /\blong\b/) {
+ $suffix .= 'L';
+ }
if (WARN("TYPECAST_INT_CONSTANT",
- "Unnecessary typecast of c90 int constant\n" . $herecurr) &&
+ "Unnecessary typecast of c90 int constant - '$cast$const' could be '$const$suffix'\n" . $herecurr) &&
$fix) {
- my $suffix = "";
- my $newconst = $const;
- $newconst =~ s/${Int_type}$//;
- $suffix .= 'U' if ($cast =~ /\bunsigned\b/);
- if ($cast =~ /\blong\s+long\b/) {
- $suffix .= 'LL';
- } elsif ($cast =~ /\blong\b/) {
- $suffix .= 'L';
- }
$fixed[$fixlinenr] =~ s/\Q$cast\E$const\b/$newconst$suffix/;
}
}