[POWERPC] spufs: Get rid of spufs_coredump_num_notes, it's not needed if we NULL terminate

The spufs_coredump_read array is NULL terminated, and we also store the size.
We only need one or the other, and the other arrays in file.c are NULL
terminated, so do that.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/cell/spufs/coredump.c

@@ -72,7 +72,7 @@ static int spufs_ctx_note_size(struct spu_context *ctx, int dfd)
 	char *name;
 	char fullname[80];
 
-	for (i = 0; spufs_coredump_read[i].name; i++) {
+	for (i = 0; spufs_coredump_read[i].name != NULL; i++) {
 		name = spufs_coredump_read[i].name;
 		sz = spufs_coredump_read[i].size;
 
@@ -194,7 +194,7 @@ static void spufs_arch_write_notes(struct file *file)
 	while ((ctx = coredump_next_context(&fd)) != NULL) {
 		spu_acquire_saved(ctx);
 
-		for (j = 0; j < spufs_coredump_num_notes; j++)
+		for (j = 0; spufs_coredump_read[j].name != NULL; j++)
 			spufs_arch_write_note(ctx, j, file, fd);
 
 		spu_release_saved(ctx);

arch/powerpc/platforms/cell/spufs/file.c

@@ -2250,7 +2250,5 @@ struct spufs_coredump_reader spufs_coredump_read[] = {
 	{ "proxydma_info", __spufs_proxydma_info_read,
 			   NULL, sizeof(struct spu_proxydma_info)},
 	{ "object-id", NULL, __spufs_object_id_get, 19 },
-	{ },
+	{ NULL },
 };
-int spufs_coredump_num_notes = ARRAY_SIZE(spufs_coredump_read) - 1;
-