[PATCH v2 1/3] Warn on unknown attributes instead of throwing errors

[Luc Van Oostenryck <luc.vanoostenryck@gmail.com>]

GCC creates new attributes quite often, generaly for specific
usages irrelevant to what sparse is used for.
Throwing errors on these create needless noise and annoyance
and seriously reduce sparse's usefulness, especially on big projects.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 parse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/parse.c b/parse.c
index 205e1264..d1aa83b4 100644
--- a/parse.c
+++ b/parse.c
@@ -1230,7 +1230,7 @@ static struct token *recover_unknown_attribute(struct token *token)
 {
 	struct expression *expr = NULL;
 
-	sparse_error(token->pos, "attribute '%s': unknown attribute", show_ident(token->ident));
+	warning(token->pos, "attribute '%s': unknown attribute", show_ident(token->ident));
 	token = token->next;
 	if (match_op(token, '('))
 		token = parens_expression(token, &expr, "in attribute");
-- 
2.10.1