ERROR: "dw_spi_resume_host" [drivers/spi/dw_spi_pci.ko] undefined!

ERROR: "dw_spi_suspend_host" [drivers/spi/dw_spi_pci.ko] undefined!
ERROR: "dw_spi_add_host" [drivers/spi/dw_spi_pci.ko] undefined!

Cc: David Brownell <david-b@pacbell.net>
Cc: Feng Tang <feng.tang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/spi/dw_spi.c

@@ -889,6 +889,7 @@ err_free_master:
 exit:
 	return ret;
 }
+EXPORT_SYMBOL(dw_spi_add_host);
 
 void __devexit dw_spi_remove_host(struct dw_spi *dws)
 {
@@ -924,6 +925,7 @@ int dw_spi_suspend_host(struct dw_spi *dws)
 	spi_set_clk(dws, 0);
 	return ret;
 }
+EXPORT_SYMBOL(dw_spi_suspend_host);
 
 int dw_spi_resume_host(struct dw_spi *dws)
 {
@@ -935,6 +937,7 @@ int dw_spi_resume_host(struct dw_spi *dws)
 		dev_err(&dws->master->dev, "fail to start queue (%d)\n", ret);
 	return ret;
 }
+EXPORT_SYMBOL(dw_spi_resume_host);
 
 MODULE_AUTHOR("Feng Tang <feng.tang@intel.com>");
 MODULE_DESCRIPTION("Driver for DesignWare SPI controller core");