kconfig: fix file name and line number of warn_ignored_character()

[ Upstream commit 77c1c0fa8b1477c5799bdad65026ea5ff676da44 ]

Currently, warn_ignore_character() displays invalid file name and
line number.

The lexer should use current_file->name and yylineno, while the parser
should use zconf_curname() and zconf_lineno().

This difference comes from that the lexer is always going ahead
of the parser. The parser needs to look ahead one token to make a
shift/reduce decision, so the lexer is requested to scan more text
from the input file.

This commit fixes the warning message from warn_ignored_character().

[Test Code]

  ----(Kconfig begin)----
  /
  -----(Kconfig end)-----

[Output]

  Before the fix:

  <none>:0:warning: ignoring unsupported character '/'

  After the fix:

  Kconfig:1:warning: ignoring unsupported character '/'

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index c410d257da0602dc9b4de92dac457e237c097399..6534dc5ac803bc08d2d6df207859cdbe975fead0 100644 (file)
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -71,7 +71,7 @@ static void warn_ignored_character(char chr)
 {
        fprintf(stderr,
                "%s:%d:warning: ignoring unsupported character '%c'\n",
-               zconf_curname(), zconf_lineno(), chr);
+               current_file->name, yylineno, chr);
 }
 %}