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Date:   Sat, 16 Sep 2017 22:32:12 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Jan Kara <jack@...e.cz>, David Howells <dhowells@...hat.com>,
        Al Viro <viro@...iv.linux.org.uk>
Cc:     Arnd Bergmann <arnd@...db.de>, Ingo Molnar <mingo@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] isofs: fix build regression

The new isofs_show_options() function fails to build when CONFIG_NLS
is disabled:

fs/isofs/inode.c: In function 'isofs_show_options':
fs/isofs/inode.c:518:44: error: 'CONFIG_NLS_DEFAULT' undeclared (first use in this function)
fs/isofs/inode.c:518:44: note: each undeclared identifier is reported only once for each function it appears in

This adds a check for CONFIG_JOLIET (which selects NLS), matching
the other uses of the iocharset handling in this file.

Fixes: 6fecb86a44f5 ("isofs: Implement show_options")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 fs/isofs/inode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 6fa7c4dbc200..bc258a4402f6 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -514,9 +514,11 @@ static int isofs_show_options(struct seq_file *m, struct dentry *root)
 	if (sbi->s_fmode != ISOFS_INVALID_MODE)
 		seq_printf(m, ",fmode=%o", sbi->s_fmode);
 
+#ifdef CONFIG_JOLIET
 	if (sbi->s_nls_iocharset &&
 	    strcmp(sbi->s_nls_iocharset->charset, CONFIG_NLS_DEFAULT) != 0)
 		seq_printf(m, ",iocharset=%s", sbi->s_nls_iocharset->charset);
+#endif
 	return 0;
 }
 
-- 
2.9.0

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