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    Subject[PATCH 5.10 084/125] f2fs: Show casefolding support only when supported
    Date
    From: Daniel Rosenberg <drosen@google.com>

    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@vger.kernel.org # v5.4+
    Signed-off-by: Daniel Rosenberg <drosen@google.com>
    Reviewed-by: Eric Biggers <ebiggers@google.com>
    Reviewed-by: Chao Yu <yuchao0@huawei.com>
    Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
    Signed-off-by: Eric Biggers <ebiggers@google.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    fs/f2fs/sysfs.c | 4 ++++
    1 file changed, 4 insertions(+)

    --- a/fs/f2fs/sysfs.c
    +++ b/fs/f2fs/sysfs.c
    @@ -612,7 +612,9 @@ 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
    #ifdef CONFIG_F2FS_FS_COMPRESSION
    F2FS_FEATURE_RO_ATTR(compression, FEAT_COMPRESSION);
    #endif
    @@ -700,7 +702,9 @@ static struct attribute *f2fs_feat_attrs
    ATTR_LIST(verity),
    #endif
    ATTR_LIST(sb_checksum),
    +#ifdef CONFIG_UNICODE
    ATTR_LIST(casefold),
    +#endif
    #ifdef CONFIG_F2FS_FS_COMPRESSION
    ATTR_LIST(compression),
    #endif

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