loader: use ARRAY_SIZE instead of NULL sentinel

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

src/loader/loader.c

@@ -56,6 +56,8 @@
 #endif
 #endif
 
+#include "util/macros.h"
+
 #define __IS_LOADER
 #include "pci_id_driver_map.h"
 
@@ -465,7 +467,7 @@ loader_get_driver_for_fd(int fd)
       return driver;
    }
 
-   for (i = 0; driver_map[i].driver; i++) {
+   for (i = 0; i < ARRAY_SIZE(driver_map); i++) {
       if (vendor_id != driver_map[i].vendor_id)
          continue;
 

src/loader/pci_id_driver_map.h

@@ -4,10 +4,6 @@
 #include <stdbool.h>
 #include <stddef.h>
 
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
-#endif
-
 #ifndef __IS_LOADER
 #  error "Only include from loader.c"
 #endif
@@ -106,7 +102,6 @@ static const struct {
    { 0x10de, "nouveau", NULL, -1, },
    { 0x1af4, "virtio_gpu", virtio_gpu_chip_ids, ARRAY_SIZE(virtio_gpu_chip_ids) },
    { 0x15ad, "vmwgfx", vmwgfx_chip_ids, ARRAY_SIZE(vmwgfx_chip_ids) },
-   { 0x0000, NULL, NULL, 0 },
 };
 
 #endif /* _PCI_ID_DRIVER_MAP_H_ */