Embedded function names are less appropriate to use when
refactoring can cause function renaming. Prefer the use
of "%s", __func__ to embedded function names.
Signed-off-by: Joe Perches <j...@perches.com>
---
scripts/checkpatch.pl | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 982c52ca6473..4f53093a1b0b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2134,7 +2134,7 @@ sub process {
my $in_header_lines = $file ? 0 : 1;
my $in_commit_log = 0; #Scanning lines before patch
my $has_commit_log = 0; #Encountered lines before patch
- my $commit_log_possible_stack_dump = 0;
+ my $commit_log_possible_stack_dump = 0;
my $commit_log_long_line = 0;
my $commit_log_has_diff = 0;
my $reported_maintainer_file = 0;
@@ -2154,6 +2154,7 @@ sub process {
my $realline = 0;
my $realcnt = 0;
my $here = '';
+ my $context_function; #undef'd unless there's a known function
my $in_comment = 0;
my $comment_edge = 0;
my $first_line = 0;
@@ -2192,7 +2193,8 @@ sub process {
}
#next;
}
- if ($rawline=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
+ if ($rawline=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@(.*)/) {
+ my $context = $4;
$realline=$1-1;
if (defined $2) {
$realcnt=$3+1;
@@ -2201,6 +2203,12 @@ sub process {
}
$in_comment = 0;
+ if ($context =~ /\b(\w+)\s*\(/) {
+ $context_function = $1;
+ } else {
+ undef $context_function;
+ }
+
# Guestimate if this is a continuing comment. Run
# the context looking for a comment "edge". If this
# edge is a close comment then we must be in a comment
@@ -5157,6 +5165,16 @@ sub process {
"break quoted strings at a space character\n" .
$hereprev);
}
+#check for an embedded function name in a string when the function is known
+# as part of a diff. This does not work for -f --file checking as it
+#depends on patch context providing the function name
+ if ($line =~ /^\+.*$String/ &&
+ defined($context_function) &&
+ get_quoted_string($line, $rawline) =~
/\b$context_function\b/) {
+ WARN("EMBEDDED_FUNCTION_NAME",
+ "Prefer using \"%s\", __func__ to embedded
function names\n" . $herecurr);
+ }
+
# check for spaces before a quoted newline
if ($rawline =~ /^.*\".*\s\\n/) {
if (WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE",
--
2.10.0.rc2.1.g053435c
