Remove gperf usage from toolchain

It turns out that gperf-3.1 changed types in the generated code in ways
that aren't even trivially detectable without having to generate a test-file.

It's just not worth using tools and libraries from clowns that don't
understand or care about compatibility.  So get rid of gperf.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/scripts/genksyms/lex.l b/scripts/genksyms/lex.l
index 5235aa5..5dc25ee 100644
--- a/scripts/genksyms/lex.l
+++ b/scripts/genksyms/lex.l
@@ -94,7 +94,7 @@
 
 /* Bring in the keyword recognizer.  */
 
-#include "keywords.hash.c"
+#include "keywords.c"
 
 
 /* Macros to append to our phrase collection list.  */
@@ -186,10 +186,10 @@
 	case IDENT:
 	  APP;
 	  {
-	    const struct resword *r = is_reserved_word(yytext, yyleng);
-	    if (r)
+	    int r = is_reserved_word(yytext, yyleng);
+	    if (r >= 0)
 	      {
-		switch (token = r->token)
+		switch (token = r)
 		  {
 		  case ATTRIBUTE_KEYW:
 		    lexstate = ST_ATTRIBUTE;