Remove hard-coded strings by using the str_on_off() helper function.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
 #include <linux/dma-map-ops.h>
 #include <linux/export.h>
 #include <linux/pci_ids.h>
+#include <linux/string_choices.h>
 #include <asm/bootinfo.h>
 #include <loongson.h>
 #include <boot_param.h>
                dma_default_coherent = !eirq_source->dma_noncoherent;
        }
 
-       pr_info("Firmware: Coherent DMA: %s\n", dma_default_coherent ? "on" : "off");
+       pr_info("Firmware: Coherent DMA: %s\n", str_on_off(dma_default_coherent));
 
        loongson_sysconf.restart_addr = boot_p->reset_system.ResetWarm;
        loongson_sysconf.poweroff_addr = boot_p->reset_system.Shutdown;