diff options
| author | Joe Perches <joe@perches.com> | 2013-04-29 16:18:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 18:28:19 -0700 |
| commit | a6962d7273d8f89c136fe9ea3d61d7f47adcd823 (patch) | |
| tree | 67d260393e057398039f81acf41c4d35d7c6a01f | |
| parent | 972fdea2e6ece7578915d386a5447bc78d3fb8b8 (diff) | |
checkpatch: Prefer seq_puts to seq_printf
Add a check for seq_printf use with a constant format without additional
arguments. Suggest seq_puts instead.
Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rwxr-xr-x | scripts/checkpatch.pl | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index a820249a3fce..b8b03aa52beb 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -628,6 +628,13 @@ sub sanitise_line { return $res; } +sub get_quoted_string { + my ($line, $rawline) = @_; + + return "" if ($line !~ m/(\"[X]+\")/g); + return substr($rawline, $-[0], $+[0] - $-[0]); +} + sub ctx_statement_block { my ($linenr, $remain, $off) = @_; my $line = $linenr - 1; @@ -3373,6 +3380,15 @@ sub process { "struct spinlock should be spinlock_t\n" . $herecurr); } +# check for seq_printf uses that could be seq_puts + if ($line =~ /\bseq_printf\s*\(/) { + my $fmt = get_quoted_string($line, $rawline); + if ($fmt !~ /[^\\]\%/) { + WARN("PREFER_SEQ_PUTS", + "Prefer seq_puts to seq_printf\n" . $herecurr); + } + } + # Check for misused memsets if ($^V && $^V ge 5.10.0 && defined $stat && |