linux-kernel - [PATCH 2/2] rust: ioctl: Move to the uapi crate

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Message-Id: <20230329-rust-uapi-v1-2-ee78f2933726@asahilina.net>
Date:   Wed, 29 Mar 2023 20:40:19 +0900
From:   Asahi Lina <lina@...hilina.net>
To:     Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>
Cc:     linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org,
        asahi@...ts.linux.dev, Asahi Lina <lina@...hilina.net>
Subject: [PATCH 2/2] rust: ioctl: Move to the uapi crate

Now that we have the uapi crate, this abstraction can use that instead
of bindings.

Signed-off-by: Asahi Lina <lina@...hilina.net>
---
 rust/kernel/ioctl.rs | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/rust/kernel/ioctl.rs b/rust/kernel/ioctl.rs
index b2076113b6a8..007437959395 100644
--- a/rust/kernel/ioctl.rs
+++ b/rust/kernel/ioctl.rs
@@ -10,40 +10,40 @@ use crate::build_assert;
 /// Build an ioctl number, analogous to the C macro of the same name.
 #[inline(always)]
 const fn _IOC(dir: u32, ty: u32, nr: u32, size: usize) -> u32 {
-    build_assert!(dir <= bindings::_IOC_DIRMASK);
-    build_assert!(ty <= bindings::_IOC_TYPEMASK);
-    build_assert!(nr <= bindings::_IOC_NRMASK);
-    build_assert!(size <= (bindings::_IOC_SIZEMASK as usize));
+    build_assert!(dir <= uapi::_IOC_DIRMASK);
+    build_assert!(ty <= uapi::_IOC_TYPEMASK);
+    build_assert!(nr <= uapi::_IOC_NRMASK);
+    build_assert!(size <= (uapi::_IOC_SIZEMASK as usize));
 
-    (dir << bindings::_IOC_DIRSHIFT)
-        | (ty << bindings::_IOC_TYPESHIFT)
-        | (nr << bindings::_IOC_NRSHIFT)
-        | ((size as u32) << bindings::_IOC_SIZESHIFT)
+    (dir << uapi::_IOC_DIRSHIFT)
+        | (ty << uapi::_IOC_TYPESHIFT)
+        | (nr << uapi::_IOC_NRSHIFT)
+        | ((size as u32) << uapi::_IOC_SIZESHIFT)
 }
 
 /// Build an ioctl number for an argumentless ioctl.
 #[inline(always)]
 pub const fn _IO(ty: u32, nr: u32) -> u32 {
-    _IOC(bindings::_IOC_NONE, ty, nr, 0)
+    _IOC(uapi::_IOC_NONE, ty, nr, 0)
 }
 
 /// Build an ioctl number for an read-only ioctl.
 #[inline(always)]
 pub const fn _IOR<T>(ty: u32, nr: u32) -> u32 {
-    _IOC(bindings::_IOC_READ, ty, nr, core::mem::size_of::<T>())
+    _IOC(uapi::_IOC_READ, ty, nr, core::mem::size_of::<T>())
 }
 
 /// Build an ioctl number for an write-only ioctl.
 #[inline(always)]
 pub const fn _IOW<T>(ty: u32, nr: u32) -> u32 {
-    _IOC(bindings::_IOC_WRITE, ty, nr, core::mem::size_of::<T>())
+    _IOC(uapi::_IOC_WRITE, ty, nr, core::mem::size_of::<T>())
 }
 
 /// Build an ioctl number for a read-write ioctl.
 #[inline(always)]
 pub const fn _IOWR<T>(ty: u32, nr: u32) -> u32 {
     _IOC(
-        bindings::_IOC_READ | bindings::_IOC_WRITE,
+        uapi::_IOC_READ | uapi::_IOC_WRITE,
         ty,
         nr,
         core::mem::size_of::<T>(),
@@ -52,20 +52,20 @@ pub const fn _IOWR<T>(ty: u32, nr: u32) -> u32 {
 
 /// Get the ioctl direction from an ioctl number.
 pub const fn _IOC_DIR(nr: u32) -> u32 {
-    (nr >> bindings::_IOC_DIRSHIFT) & bindings::_IOC_DIRMASK
+    (nr >> uapi::_IOC_DIRSHIFT) & uapi::_IOC_DIRMASK
 }
 
 /// Get the ioctl type from an ioctl number.
 pub const fn _IOC_TYPE(nr: u32) -> u32 {
-    (nr >> bindings::_IOC_TYPESHIFT) & bindings::_IOC_TYPEMASK
+    (nr >> uapi::_IOC_TYPESHIFT) & uapi::_IOC_TYPEMASK
 }
 
 /// Get the ioctl number from an ioctl number.
 pub const fn _IOC_NR(nr: u32) -> u32 {
-    (nr >> bindings::_IOC_NRSHIFT) & bindings::_IOC_NRMASK
+    (nr >> uapi::_IOC_NRSHIFT) & uapi::_IOC_NRMASK
 }
 
 /// Get the ioctl size from an ioctl number.
 pub const fn _IOC_SIZE(nr: u32) -> usize {
-    ((nr >> bindings::_IOC_SIZESHIFT) & bindings::_IOC_SIZEMASK) as usize
+    ((nr >> uapi::_IOC_SIZESHIFT) & uapi::_IOC_SIZEMASK) as usize
 }

-- 
2.40.0