This patch removes the Sparse generated warnings. Following warnings are reported by Sparse:
drivers/staging/kpc2000//kpc_dma/kpc_dma_driver.c:46:6: warning: symbol 'kpc_dma_del_device' was not declared. Should it be static?
drivers/staging/kpc2000//kpc_dma/kpc_dma_driver.c:91:14: warning: symbol 'kpc_dma_class' was not declared. Should it be static?
drivers/staging/kpc2000//kpc_dma/kpc_dma_driver.c:199:24: warning: symbol 'kpc_dma_plat_driver_i' was not declared. Should it be static?
Signed-off-by: Rishiraj Manwatkar <manwatkar@outlook.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
        mutex_unlock(&kpc_dma_mtx);
 }
 
-void kpc_dma_del_device(struct kpc_dma_device *ldev)
+static void kpc_dma_del_device(struct kpc_dma_device *ldev)
 {
        mutex_lock(&kpc_dma_mtx);
        list_del(&ldev->list);
        NULL,
 };
 
-struct class *kpc_dma_class;
+static struct class *kpc_dma_class;
 
 /**********  Platform Driver Functions  **********/
 static
 }
 
 /**********  Driver Functions  **********/
-struct platform_driver kpc_dma_plat_driver_i = {
+static struct platform_driver kpc_dma_plat_driver_i = {
        .probe        = kpc_dma_probe,
        .remove       = kpc_dma_remove,
        .driver = {