Merge pull request #418 from ojeda/deny

Globally deny Clippy and `rust_2018_idioms`

Author: ojeda

Makefile

@@ -526,7 +526,10 @@ KBUILD_RUSTCFLAGS := --emit=dep-info,obj,metadata --edition=2018 \
 		     -Cpanic=abort -Cembed-bitcode=n -Clto=n -Crpath=n \
 		     -Cforce-unwind-tables=n -Ccodegen-units=1 \
 		     -Zbinary_dep_depinfo=y -Zsymbol-mangling-version=v0 \
-		     -Dunsafe_op_in_unsafe_fn -Wmissing_docs
+		     -Dunsafe_op_in_unsafe_fn -Drust_2018_idioms \
+		     -Wmissing_docs
+KBUILD_CLIPPYFLAGS := -Dclippy::correctness -Dclippy::style \
+		      -Dclippy::complexity -Dclippy::perf
 KBUILD_AFLAGS_KERNEL :=
 KBUILD_CFLAGS_KERNEL :=
 KBUILD_RUSTCFLAGS_KERNEL :=
@@ -539,7 +542,7 @@ CLANG_FLAGS :=
 
 ifeq ($(KBUILD_CLIPPY),1)
 	RUSTC_OR_CLIPPY_QUIET := CLIPPY
-	RUSTC_OR_CLIPPY = $(CLIPPY_DRIVER)
+	RUSTC_OR_CLIPPY = $(CLIPPY_DRIVER) $(KBUILD_CLIPPYFLAGS)
 else
 	RUSTC_OR_CLIPPY_QUIET := RUSTC
 	RUSTC_OR_CLIPPY = $(RUSTC)

drivers/android/node.rs

@@ -320,7 +320,7 @@ impl Node {
     ) {
         out.ptr = self.ptr as _;
         out.cookie = self.cookie as _;
-        let inner = self.inner.access(&guard);
+        let inner = self.inner.access(guard);
         if inner.strong.has_count {
             out.has_strong_ref = 1;
         }

drivers/android/rust_binder.rs

@@ -6,6 +6,8 @@
 
 #![no_std]
 #![feature(global_asm, try_reserve, allocator_api, concat_idents)]
+// TODO: clean these up
+#![allow(rust_2018_idioms)]
 
 use alloc::{boxed::Box, sync::Arc};
 use core::pin::Pin;

drivers/char/hw_random/bcm2835_rng_rust.rs

@@ -73,7 +73,7 @@ struct RngModule {
 impl KernelModule for RngModule {
     fn init() -> Result<Self> {
         const OF_MATCH_TBL: ConstOfMatchTable<1> =
-            ConstOfMatchTable::new_const([&c_str!("brcm,bcm2835-rng")]);
+            ConstOfMatchTable::new_const([c_str!("brcm,bcm2835-rng")]);
 
         let pdev = platdev::Registration::new_pinned::<RngDriver>(
             c_str!("bcm2835-rng-rust"),

rust/compiler_builtins.rs

@@ -23,10 +23,6 @@
 #![compiler_builtins]
 #![no_builtins]
 #![no_std]
-#![deny(clippy::complexity)]
-#![deny(clippy::correctness)]
-#![deny(clippy::perf)]
-#![deny(clippy::style)]
 
 macro_rules! define_panicking_intrinsics(
     ($reason: tt, { $($ident: ident, )* }) => {
@@ -143,7 +139,7 @@ extern "C" {
 }
 
 #[panic_handler]
-fn panic(_info: &core::panic::PanicInfo) -> ! {
+fn panic(_info: &core::panic::PanicInfo<'_>) -> ! {
     unsafe {
         rust_helper_BUG();
     }

rust/kernel/lib.rs

@@ -24,11 +24,6 @@
     receiver_trait,
     try_reserve
 )]
-#![deny(clippy::complexity)]
-#![deny(clippy::correctness)]
-#![deny(clippy::perf)]
-#![deny(clippy::style)]
-#![deny(rust_2018_idioms)]
 
 // Ensure conditional compilation based on the kernel configuration works;
 // otherwise we may silently break things like initcall handling.

rust/macros/lib.rs

@@ -2,11 +2,6 @@
 
 //! Crate for all kernel procedural macros.
 
-#![deny(clippy::complexity)]
-#![deny(clippy::correctness)]
-#![deny(clippy::perf)]
-#![deny(clippy::style)]
-
 mod module;
 
 use proc_macro::TokenStream;