linux-kernel - linux-next: manual merge of the rust tree with the kbuild tree

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Message-ID: <20220405131412.381b8a97@canb.auug.org.au>
Date:   Tue, 5 Apr 2022 13:14:12 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        Masahiro Yamada <masahiroy@...nel.org>
Cc:     Adam Bratschi-Kaye <ark.email@...il.com>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Antonio Terceiro <antonio.terceiro@...aro.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Boris-Chengbiao Zhou <bobo1239@....de>,
        Chun-Tse Shao <ctshao@...gle.com>, Daniel Xu <dxu@...uu.xyz>,
        Dariusz Sosnowski <dsosnowski@...snowski.pl>,
        Douglas Su <d0u9.su@...look.com>, Finn Behrens <me@...enk.de>,
        Gary Guo <gary@...yguo.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Miguel Cano <macanroj@...il.com>,
        Miguel Ojeda <ojeda@...nel.org>,
        Sven Van Asbroeck <thesven73@...il.com>,
        Wedson Almeida Filho <wedsonaf@...gle.com>
Subject: linux-next: manual merge of the rust tree with the kbuild tree

Hi all,

Today's linux-next merge of the rust tree got a conflict in:

  Makefile

between commit:

  703f8d8fad36 ("kbuild: Allow kernel installation packaging to override pkg-config")

from the kbuild tree and commit:

  241608fc4d70 ("Kbuild: add Rust support")

from the rust tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc Makefile
index d9336e783be3,40182fcc211a..000000000000
--- a/Makefile
+++ b/Makefile
@@@ -436,7 -443,7 +443,8 @@@ els
  HOSTCC	= gcc
  HOSTCXX	= g++
  endif
 +HOSTPKG_CONFIG	= pkg-config
+ HOSTRUSTC = rustc
  
  KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
  			 -O2 -fomit-frame-pointer -std=gnu11 \
@@@ -534,7 -578,23 +579,23 @@@ KBUILD_LDFLAGS_MODULE :
  KBUILD_LDFLAGS :=
  CLANG_FLAGS :=
  
+ ifeq ($(KBUILD_CLIPPY),1)
+ 	RUSTC_OR_CLIPPY_QUIET := CLIPPY
+ 	RUSTC_OR_CLIPPY = $(CLIPPY_DRIVER)
+ else
+ 	RUSTC_OR_CLIPPY_QUIET := RUSTC
+ 	RUSTC_OR_CLIPPY = $(RUSTC)
+ endif
+ 
+ ifdef RUST_LIB_SRC
+ 	export RUST_LIB_SRC
+ endif
+ 
+ export RUSTC_BOOTSTRAP := 1
+ 
 -export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC
 +export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC HOSTPKG_CONFIG
+ export RUSTC RUSTDOC RUSTFMT RUSTC_OR_CLIPPY_QUIET RUSTC_OR_CLIPPY BINDGEN CARGO
+ export HOSTRUSTC KBUILD_HOSTRUSTFLAGS
  export CPP AR NM STRIP OBJCOPY OBJDUMP READELF PAHOLE RESOLVE_BTFIDS LEX YACC AWK INSTALLKERNEL
  export PERL PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
  export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD

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