Add extra test for CONFIG_ATA in src/disk.c.

All the paths to send_disk_op apparently confuses gcc into always
    emitting __send_disk_op even when it can't be called.  Add an
    extra exlicit check to help gcc out.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/disk.c b/src/disk.c
index 13cb1f3..762d5a4 100644
--- a/src/disk.c
+++ b/src/disk.c
@@ -70,6 +70,9 @@ __send_disk_op(struct disk_op_s *op_p, u16 op_s)
 static int
 send_disk_op(struct disk_op_s *op)
 {
+    if (! CONFIG_ATA)
+        return -1;
+
     return stack_hop((u32)op, GET_SEG(SS), 0, __send_disk_op);
 }