From 36cefdac3cfe959cb463cd3b8db2e93abbd86636 Mon Sep 17 00:00:00 2001
From: bunnie <bunnie@kosagi.com>
Date: Wed, 13 Jan 2021 15:09:53 +0800
Subject: [PATCH] fixes to get it working in hosted mode

---
 services/trng/src/main.rs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/services/trng/src/main.rs b/services/trng/src/main.rs
index e9d147f11..c7d9b5e15 100644
--- a/services/trng/src/main.rs
+++ b/services/trng/src/main.rs
@@ -124,7 +124,7 @@ mod implementation {
             }
         }
 
-        fn move_lfsr(mut lfsr: u32) -> u32 {
+        fn move_lfsr(&self, mut lfsr: u32) -> u32 {
             lfsr ^= lfsr >> 7;
             lfsr ^= lfsr << 9;
             lfsr ^= lfsr >> 13;
@@ -133,12 +133,12 @@ mod implementation {
 
         pub fn wait_full(&self) { }
 
-        pub fn get_trng(&mut self, count: usize) -> [u32; 2] {
+        pub fn get_trng(&mut self, _count: usize) -> [u32; 2] {
             info!("TRNG: hosted mode TRNG is *not* random, it is an LFSR");
-            let ret: [u32; 2];
-            self.seed = move_lfsr(self.seed);
+            let mut ret: [u32; 2] = [0; 2];
+            self.seed = self.move_lfsr(self.seed);
             ret[0] = self.seed;
-            self.seed = move_lfsr(self.seed);
+            self.seed = self.move_lfsr(self.seed);
             ret[1] = self.seed;
 
             ret
@@ -155,7 +155,7 @@ fn xmain() -> ! {
     let trng_sid = xous_names::register_name(xous::names::SERVER_NAME_TRNG).expect("TRNG: can't register server");
     info!("TRNG: registered with NS -- {:?}", trng_sid);
 
-    let trng = Trng::new();
+    let mut trng = Trng::new();
     info!("TRNG: ready to accept requests");
 
     loop {