kbuild/genksyms: handle va_list type

genksyms currently does not handle va_list. Add the __builtin_va_list
keyword as a type. This reduces the amount of syntax errors thrown,
but so far no export symbol has a type with a va_list argument, so
there is currently no bug in the end result.

Note: this patch does not regenerate shipped parser files.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.com>

2 files changed, 3 insertions, 0 deletions

diff --git a/scripts/genksyms/keywords.gperf b/scripts/genksyms/keywords.gperf
index a9096d993172..bd4c4b235588 100644
--- a/scripts/genksyms/keywords.gperf
+++ b/scripts/genksyms/keywords.gperf
@@ -27,6 +27,7 @@ __typeof, TYPEOF_KEYW
 __typeof__, TYPEOF_KEYW
 __volatile, VOLATILE_KEYW
 __volatile__, VOLATILE_KEYW
+__builtin_va_list, VA_LIST_KEYW
 # According to rth, c99 defines _Bool, __restrict, __restrict__, restrict.  KAO
 _Bool, BOOL_KEYW
 _restrict, RESTRICT_KEYW
diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y
index 723ab30fe9d4..4fba255e54ae 100644
--- a/scripts/genksyms/parse.y
+++ b/scripts/genksyms/parse.y
@@ -98,6 +98,7 @@ static void record_compound(struct string_list **keyw,
 %token VOID_KEYW
 %token VOLATILE_KEYW
 %token TYPEOF_KEYW
+%token VA_LIST_KEYW
 
 %token EXPORT_SYMBOL_KEYW
 
@@ -261,6 +262,7 @@ simple_type_specifier:
         | DOUBLE_KEYW
         | VOID_KEYW
         | BOOL_KEYW
+        | VA_LIST_KEYW
         | TYPE                  { (*$1)->tag = SYM_TYPEDEF; $$ = $1; }
         ;