Disable warning about volatile variables. They are oftne needed in embedded code

checkpatch.pl

@@ -3820,15 +3820,6 @@ sub process {
 				$fixed[$fixlinenr] =~ s/(^.$Type\s*$Ident(?:\s+$Modifier)*)\s*=\s*$zero_initializer\s*;/$1;/;
 			}
 		}
-# check for static initialisers.
-		if ($line =~ /^\+.*\bstatic\s.*=\s*($zero_initializer)\s*;/) {
-			if (ERROR("INITIALISED_STATIC",
-				  "do not initialise statics to $1\n" .
-				      $herecurr) &&
-			    $fix) {
-				$fixed[$fixlinenr] =~ s/(\bstatic\s.*?)\s*=\s*$zero_initializer\s*;/$1;/;
-			}
-		}
 
 # check for misordered declarations of char/short/int/long with signed/unsigned
 		while ($sline =~ m{(\b$TypeMisordered\b)}g) {
@@ -5338,10 +5329,10 @@ sub process {
 
 # no volatiles please
 		my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b};
-		if ($line =~ /\bvolatile\b/ && $line !~ /$asm_volatile/) {
-			WARN("VOLATILE",
-			     "Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst\n" . $herecurr);
-		}
+		#if ($line =~ /\bvolatile\b/ && $line !~ /$asm_volatile/) {
+		#	WARN("VOLATILE",
+		#	     "Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst\n" . $herecurr);
+		#}
 
 # Check for user-visible strings broken across lines, which breaks the ability
 # to grep for the string.  Make exceptions when the previous string ends in a