[MTD] partitioning utility predicates

Move mtd_has_partitions() and mtd_has_cmdlinepart() inlines from a
DaVinci-specific driver to the <linux/mtd/partitions.h> header.

Use those to eliminate #ifdefs in two drivers which had their own
definitions of mtd_has_partitions().

Quite a lot of other MTD drivers could benefit from using use one or both
of these to remove #ifdeffery.  Maybe some Janitors would like to help.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index a45dd831b3f8..7535a74083b9 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -76,4 +76,16 @@ int __devinit of_mtd_parse_partitions(struct device *dev,
                                       struct device_node *node,
                                       struct mtd_partition **pparts);
 
+#ifdef CONFIG_MTD_PARTITIONS
+static inline int mtd_has_partitions(void) { return 1; }
+#else
+static inline int mtd_has_partitions(void) { return 0; }
+#endif
+
+#ifdef CONFIG_MTD_CMDLINE_PARTS
+static inline int mtd_has_cmdlinepart(void) { return 1; }
+#else
+static inline int mtd_has_cmdlinepart(void) { return 0; }
+#endif
+
 #endif