[PATCH 5.4 48/71] f2fs: Show casefolding support only when supported

[Greg Kroah-Hartman]

From: Daniel Rosenberg <drosen@xxxxxxxxxx>

commit 39307f8ee3539478c28e71b4909b5b028cce14b1 upstream.

The casefolding feature is only supported when CONFIG_UNICODE is set.
This modifies the feature list f2fs presents under sysfs accordingly.

Fixes: 5aba54302a46 ("f2fs: include charset encoding information in the superblock")
Cc: stable@xxxxxxxxxxxxxxx # v5.4+
Signed-off-by: Daniel Rosenberg <drosen@xxxxxxxxxx>
Reviewed-by: Eric Biggers <ebiggers@xxxxxxxxxx>
Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/f2fs/sysfs.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -499,7 +499,9 @@ F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LO
 F2FS_FEATURE_RO_ATTR(verity, FEAT_VERITY);
 #endif
 F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM);
+#ifdef CONFIG_UNICODE
 F2FS_FEATURE_RO_ATTR(casefold, FEAT_CASEFOLD);
+#endif
 
 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
 static struct attribute *f2fs_attrs[] = {
@@ -568,7 +570,9 @@ static struct attribute *f2fs_feat_attrs
 	ATTR_LIST(verity),
 #endif
 	ATTR_LIST(sb_checksum),
+#ifdef CONFIG_UNICODE
 	ATTR_LIST(casefold),
+#endif
 	NULL,
 };
 ATTRIBUTE_GROUPS(f2fs_feat);