From 39f1de5817951b80ec3076d07f14e6c21923d1fc Mon Sep 17 00:00:00 2001
From: Mohsen Zohrevandi <mohsen.zohrevandi@fortanix.com>
Date: Tue, 10 Nov 2020 11:06:18 -0800
Subject: [PATCH] Remove reserved field

---
 async-usercalls/src/hacks/mod.rs     | 5 +----
 async-usercalls/src/provider_core.rs | 4 +---
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/async-usercalls/src/hacks/mod.rs b/async-usercalls/src/hacks/mod.rs
index 71c0639f..9011c63e 100644
--- a/async-usercalls/src/hacks/mod.rs
+++ b/async-usercalls/src/hacks/mod.rs
@@ -22,10 +22,7 @@ unsafe impl UserSafeSized for Return {}
 
 #[repr(C)]
 #[derive(Copy, Clone, Default)]
-pub struct Cancel {
-    /// Reserved for future use.
-    pub reserved: u64,
-}
+pub struct Cancel;
 
 unsafe impl UserSafeSized for Cancel {}
 
diff --git a/async-usercalls/src/provider_core.rs b/async-usercalls/src/provider_core.rs
index 9acb318c..5b027c16 100644
--- a/async-usercalls/src/provider_core.rs
+++ b/async-usercalls/src/provider_core.rs
@@ -44,9 +44,7 @@ impl ProviderCore {
         assert!(usercall.id != 0);
         let cancel = Identified {
             id: usercall.id,
-            data: Cancel {
-                reserved: 0,
-            },
+            data: Cancel,
         };
         PROVIDERS
             .usercall_sender()