move <u32 as SyscallArg> impl

Author: Freax13

tee/kernel/src/user/syscall/args.rs

@@ -323,6 +323,21 @@ impl SyscallArg for i64 {
     }
 }
 
+impl SyscallArg for u32 {
+    fn parse(value: u64, _abi: Abi) -> Result<Self> {
+        Ok(value as u32)
+    }
+
+    fn display(
+        f: &mut dyn fmt::Write,
+        value: u64,
+        abi: Abi,
+        _thread: &ThreadGuard<'_>,
+    ) -> fmt::Result {
+        write!(f, "{}", Self::parse(value, abi).unwrap())
+    }
+}
+
 impl SyscallArg for i32 {
     fn parse(value: u64, _abi: Abi) -> Result<Self> {
         Ok(value as u32 as i32)

tee/kernel/src/user/syscall/traits.rs

@@ -17,7 +17,7 @@ use crate::{
     error::{Result, err},
     per_cpu::PerCpu,
     user::{
-        syscall::{SYSCALL_HANDLERS, args::SyscallArg},
+        syscall::SYSCALL_HANDLERS,
         thread::{Thread, ThreadGuard},
     },
 };
@@ -40,25 +40,6 @@ pub enum Abi {
 
 pub type SyscallResult = Result<u64>;
 
-impl SyscallArg for u32 {
-    fn parse(value: u64, _abi: Abi) -> Result<Self> {
-        Ok(u32::try_from(value)?)
-    }
-
-    fn display(
-        f: &mut dyn fmt::Write,
-        value: u64,
-        _abi: Abi,
-        _thread: &ThreadGuard<'_>,
-    ) -> fmt::Result {
-        if let Ok(value) = u32::try_from(value) {
-            write!(f, "{value}")
-        } else {
-            write!(f, "{value} (out of bounds)")
-        }
-    }
-}
-
 pub trait Syscall {
     const NO_I386: Option<usize>;
     const NO_AMD64: Option<usize>;