mm: remove offlining arg to migrate_pages

[platform/adaptation/renesas_rcar/renesas_kernel.git] / scripts / checkpatch.pl

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 2bb08a9..747bcd7 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1931,6 +1931,12 @@ sub process {
                              "use the SSYNC() macro in asm/blackfin.h\n" . $herevet);
                }
 
+# check for old HOTPLUG __dev<foo> section markings
+               if ($line =~ /\b(__dev(init|exit)(data|const|))\b/) {
+                       WARN("HOTPLUG_SECTION",
+                            "Using $1 is unnecessary\n" . $herecurr);
+               }
+
 # Check for potential 'bare' types
                my ($stat, $cond, $line_nr_next, $remain_next, $off_next,
                    $realline_next);
@@ -2430,6 +2436,15 @@ sub process {
                             "Prefer pr_warn(... to pr_warning(...\n" . $herecurr);
                }
 
+               if ($line =~ /\bdev_printk\s*\(\s*KERN_([A-Z]+)/) {
+                       my $orig = $1;
+                       my $level = lc($orig);
+                       $level = "warn" if ($level eq "warning");
+                       $level = "dbg" if ($level eq "debug");
+                       WARN("PREFER_DEV_LEVEL",
+                            "Prefer dev_$level(... to dev_printk(KERN_$orig, ...\n" . $herecurr);
+               }
+
 # function brace can't be on same line, except for #defines of do while,
 # or if closed on same line
                if (($line=~/$Type\s*$Ident\(.*\).*\s{/) and
@@ -2915,6 +2930,7 @@ sub process {
                        my $var = $1;
                        if ($var !~ /$Constant/ &&
                            $var =~ /[A-Z]\w*[a-z]|[a-z]\w*[A-Z]/ &&
+                           $var !~ /^Page[A-Z]/ &&
                            !defined $camelcase{$var}) {
                                $camelcase{$var} = 1;
                                WARN("CAMELCASE",
@@ -3237,9 +3253,9 @@ sub process {
                }
 
 # prefer usleep_range over udelay
-               if ($line =~ /\budelay\s*\(\s*(\w+)\s*\)/) {
+               if ($line =~ /\budelay\s*\(\s*(\d+)\s*\)/) {
                        # ignore udelay's < 10, however
-                       if (! (($1 =~ /(\d+)/) && ($1 < 10)) ) {
+                       if (! ($1 < 10) ) {
                                CHK("USLEEP_RANGE",
                                    "usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $line);
                        }
@@ -3460,6 +3476,12 @@ sub process {
                             "unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
                }
 
+# check for alloc argument mismatch
+               if ($line =~ /\b(kcalloc|kmalloc_array)\s*\(\s*sizeof\b/) {
+                       WARN("ALLOC_ARRAY_ARGS",
+                            "$1 uses number as first arg, sizeof is generally wrong\n" . $herecurr);
+               }
+
 # check for multiple semicolons
                if ($line =~ /;\s*;\s*$/) {
                        WARN("ONE_SEMICOLON",