diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index f8279e7..cb7147e 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -54,7 +54,7 @@
 #define SPIDEV_MAJOR			153	/* assigned */
 #define N_SPI_MINORS			32	/* ... up to 256 */
 
-static unsigned long	minors[N_SPI_MINORS / BITS_PER_LONG];
+static DECLARE_BITMAP(minors, N_SPI_MINORS);
 
 
 /* Bit masks for spi_device.mode management.  Note that incorrect