diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 4a77f6fe262207032e8538ffc8ea8c6c565045da..05b84581d5c5636b6811cb1d310a0ad8f7ff9771 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -1745,7 +1745,7 @@ struct cpt_lf_alloc_req_msg {
 	u16 nix_pf_func;
 	u16 sso_pf_func;
 	u16 eng_grpmsk;
-	int blkaddr;
+	u8 blkaddr;
 	u8 ctx_ilen_valid : 1;
 	u8 ctx_ilen : 7;
 };