ccp_sg_workarea
struct ccp_sg_workarea sg_wa;
static void ccp_update_sg_workarea(struct ccp_sg_workarea *wa, unsigned int len)
struct ccp_sg_workarea *sg_wa = &data->sg_wa;
static void ccp_sg_free(struct ccp_sg_workarea *wa)
static int ccp_init_sg_workarea(struct ccp_sg_workarea *wa, struct device *dev,