From 7a5716446787fe2cf58dccbc342b53bb181ab1f9 Mon Sep 17 00:00:00 2001
From: Alistair Francis <alistair.francis@wdc.com>
Date: Wed, 25 Mar 2026 10:16:56 +1000
Subject: [PATCH] rust: Mark all from() for Error functions inline

Mark all of the existing

impl From<...> for Error {
    fn from(err: ...) -> Self {
        ...
    }
}

functions as `#[inline]`

There was a recent request [1] to inline the simple from() Error
functions to avoid the function call overhead.

This patch inlines all of the functions.

1: https://lkml.org/lkml/2026/3/13/962

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 examples/error.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/examples/error.rs b/examples/error.rs
index 8f4e135e..96f09539 100644
--- a/examples/error.rs
+++ b/examples/error.rs
@@ -11,6 +11,7 @@ use std::alloc::AllocError;
 pub struct Error;
 
 impl From<Infallible> for Error {
+    #[inline]
     fn from(e: Infallible) -> Self {
         match e {}
     }
@@ -18,6 +19,7 @@ impl From<Infallible> for Error {
 
 #[cfg(feature = "alloc")]
 impl From<AllocError> for Error {
+    #[inline]
     fn from(_: AllocError) -> Self {
         Self
     }