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checkpatch: add a few more --fix corrections
Suggest a few more single-line corrections. Remove DOS line endings Simplify removing trailing whitespace Remove global/static initializations to 0/NULL Convert pr_warning to pr_warn Add space after brace Convert binary constants to hex Remove whitespace after line continuation Use inline not __inline or __inline__ Use __printf and __scanf Use a single ; for statement terminations Convert __FUNCTION__ to __func__ 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
Linus Torvalds
parent
1431574a1c
commit
d5e616fc1c
@ -1845,15 +1845,17 @@ sub process {
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#trailing whitespace
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if ($line =~ /^\+.*\015/) {
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my $herevet = "$here\n" . cat_vet($rawline) . "\n";
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ERROR("DOS_LINE_ENDINGS",
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"DOS line endings\n" . $herevet);
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if (ERROR("DOS_LINE_ENDINGS",
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"DOS line endings\n" . $herevet) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/[\s\015]+$//;
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}
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} elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) {
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my $herevet = "$here\n" . cat_vet($rawline) . "\n";
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if (ERROR("TRAILING_WHITESPACE",
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"trailing whitespace\n" . $herevet) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/^(\+.*?)\s+$/$1/;
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$fixed[$linenr - 1] =~ s/\s+$//;
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}
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$rpt_cleaners = 1;
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@ -2486,16 +2488,22 @@ sub process {
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}
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# check for global initialisers.
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if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) {
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ERROR("GLOBAL_INITIALISERS",
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"do not initialise globals to 0 or NULL\n" .
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$herecurr);
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if ($line =~ /^\+(\s*$Type\s*$Ident\s*(?:\s+$Modifier))*\s*=\s*(0|NULL|false)\s*;/) {
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if (ERROR("GLOBAL_INITIALISERS",
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"do not initialise globals to 0 or NULL\n" .
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$herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/($Type\s*$Ident\s*(?:\s+$Modifier))*\s*=\s*(0|NULL|false)\s*;/$1;/;
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}
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}
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# check for static initialisers.
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if ($line =~ /\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
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ERROR("INITIALISED_STATIC",
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"do not initialise statics to 0 or NULL\n" .
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$herecurr);
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if ($line =~ /^\+.*\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
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if (ERROR("INITIALISED_STATIC",
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"do not initialise statics to 0 or NULL\n" .
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$herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/(\bstatic\s.*?)\s*=\s*(0|NULL|false)\s*;/$1;/;
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}
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}
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# check for static const char * arrays.
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@ -2638,8 +2646,12 @@ sub process {
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}
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if ($line =~ /\bpr_warning\s*\(/) {
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WARN("PREFER_PR_LEVEL",
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"Prefer pr_warn(... to pr_warning(...\n" . $herecurr);
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if (WARN("PREFER_PR_LEVEL",
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"Prefer pr_warn(... to pr_warning(...\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~
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s/\bpr_warning\b/pr_warn/;
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}
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}
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if ($line =~ /\bdev_printk\s*\(\s*KERN_([A-Z]+)/) {
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@ -3031,8 +3043,7 @@ sub process {
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if (ERROR("SPACING",
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"space required before the open brace '{'\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~
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s/^(\+.*(?:do|\))){/$1 {/;
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$fixed[$linenr - 1] =~ s/^(\+.*(?:do|\))){/$1 {/;
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}
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}
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@ -3047,8 +3058,12 @@ sub process {
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# closing brace should have a space following it when it has anything
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# on the line
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if ($line =~ /}(?!(?:,|;|\)))\S/) {
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ERROR("SPACING",
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"space required after that close brace '}'\n" . $herecurr);
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if (ERROR("SPACING",
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"space required after that close brace '}'\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~
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s/}((?!(?:,|;|\)))\S)/} $1/;
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}
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}
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# check spacing on square brackets
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@ -3271,8 +3286,13 @@ sub process {
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#gcc binary extension
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if ($var =~ /^$Binary$/) {
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WARN("GCC_BINARY_CONSTANT",
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"Avoid gcc v4.3+ binary constant extension: <$var>\n" . $herecurr);
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if (WARN("GCC_BINARY_CONSTANT",
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"Avoid gcc v4.3+ binary constant extension: <$var>\n" . $herecurr) &&
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$fix) {
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my $hexval = sprintf("0x%x", oct($var));
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$fixed[$linenr - 1] =~
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s/\b$var\b/$hexval/;
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}
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}
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#CamelCase
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@ -3292,9 +3312,12 @@ sub process {
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}
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#no spaces allowed after \ in define
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if ($line=~/\#\s*define.*\\\s$/) {
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WARN("WHITESPACE_AFTER_LINE_CONTINUATION",
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"Whitepspace after \\ makes next lines useless\n" . $herecurr);
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if ($line =~ /\#\s*define.*\\\s+$/) {
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if (WARN("WHITESPACE_AFTER_LINE_CONTINUATION",
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"Whitespace after \\ makes next lines useless\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/\s+$//;
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}
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}
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#warn if <asm/foo.h> is #included and <linux/foo.h> is available (uses RAW line)
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@ -3691,8 +3714,12 @@ sub process {
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# Check for __inline__ and __inline, prefer inline
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if ($line =~ /\b(__inline__|__inline)\b/) {
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WARN("INLINE",
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"plain inline is preferred over $1\n" . $herecurr);
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if (WARN("INLINE",
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"plain inline is preferred over $1\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/\b(__inline__|__inline)\b/inline/;
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}
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}
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# Check for __attribute__ packed, prefer __packed
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@ -3709,14 +3736,21 @@ sub process {
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# Check for __attribute__ format(printf, prefer __printf
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if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
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WARN("PREFER_PRINTF",
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"__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr);
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if (WARN("PREFER_PRINTF",
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"__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.*)\)\s*\)\s*\)/"__printf(" . trim($1) . ")"/ex;
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}
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}
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# Check for __attribute__ format(scanf, prefer __scanf
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if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) {
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WARN("PREFER_SCANF",
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"__scanf(string-index, first-to-check) is preferred over __attribute__((format(scanf, string-index, first-to-check)))\n" . $herecurr);
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if (WARN("PREFER_SCANF",
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"__scanf(string-index, first-to-check) is preferred over __attribute__((format(scanf, string-index, first-to-check)))\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\s*,\s*(.*)\)\s*\)\s*\)/"__scanf(" . trim($1) . ")"/ex;
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}
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}
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# check for sizeof(&)
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@ -3727,8 +3761,11 @@ sub process {
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# check for sizeof without parenthesis
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if ($line =~ /\bsizeof\s+((?:\*\s*|)$Lval|$Type(?:\s+$Lval|))/) {
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WARN("SIZEOF_PARENTHESIS",
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"sizeof $1 should be sizeof($1)\n" . $herecurr);
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if (WARN("SIZEOF_PARENTHESIS",
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"sizeof $1 should be sizeof($1)\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/\bsizeof\s+((?:\*\s*|)$Lval|$Type(?:\s+$Lval|))/"sizeof(" . trim($1) . ")"/ex;
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}
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}
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# check for line continuations in quoted strings with odd counts of "
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@ -3747,8 +3784,11 @@ sub process {
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if ($line =~ /\bseq_printf\s*\(/) {
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my $fmt = get_quoted_string($line, $rawline);
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if ($fmt !~ /[^\\]\%/) {
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WARN("PREFER_SEQ_PUTS",
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"Prefer seq_puts to seq_printf\n" . $herecurr);
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if (WARN("PREFER_SEQ_PUTS",
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"Prefer seq_puts to seq_printf\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/\bseq_printf\b/seq_puts/;
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}
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}
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}
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@ -3879,8 +3919,11 @@ sub process {
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# check for multiple semicolons
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if ($line =~ /;\s*;\s*$/) {
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WARN("ONE_SEMICOLON",
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"Statements terminations use 1 semicolon\n" . $herecurr);
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if (WARN("ONE_SEMICOLON",
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"Statements terminations use 1 semicolon\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/(\s*;\s*){2,}$/;/g;
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}
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}
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# check for switch/default statements without a break;
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@ -3898,9 +3941,12 @@ sub process {
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}
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# check for gcc specific __FUNCTION__
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if ($line =~ /__FUNCTION__/) {
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WARN("USE_FUNC",
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"__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr);
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if ($line =~ /\b__FUNCTION__\b/) {
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if (WARN("USE_FUNC",
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"__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr) &&
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$fix) {
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$fixed[$linenr - 1] =~ s/\b__FUNCTION__\b/__func__/g;
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}
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}
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# check for use of yield()
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