[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, 6 insertions, 10 deletions

diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 6d9f810..d95f74a 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -98,12 +98,6 @@ struct dataflash {
 	struct mtd_info		mtd;
 };
 
-#ifdef CONFIG_MTD_PARTITIONS
-#define	mtd_has_partitions()	(1)
-#else
-#define	mtd_has_partitions()	(0)
-#endif
-
 /* ......................................................................... */
 
 /*
@@ -682,11 +676,13 @@ add_dataflash_otp(struct spi_device *spi, char *name,
 		struct mtd_partition	*parts;
 		int			nr_parts = 0;
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-		static const char *part_probes[] = { "cmdlinepart", NULL, };
+		if (mtd_has_cmdlinepart()) {
+			static const char *part_probes[]
+					= { "cmdlinepart", NULL, };
 
-		nr_parts = parse_mtd_partitions(device, part_probes, &parts, 0);
-#endif
+			nr_parts = parse_mtd_partitions(device,
+					part_probes, &parts, 0);
+		}
 
 		if (nr_parts <= 0 && pdata && pdata->parts) {
 			parts = pdata->parts;