linux-kernel - [PATCH v2 07/13] rust: add `pin-init` as a dependency to `bindings` and `uapi`

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Message-ID: <20250523145125.523275-8-lossin@kernel.org>
Date: Fri, 23 May 2025 16:51:03 +0200
From: Benno Lossin <lossin@...nel.org>
To: Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <lossin@...nel.org>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>
Cc: Lyude Paul <lyude@...hat.com>,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 07/13] rust: add `pin-init` as a dependency to `bindings` and `uapi`

This allows `bindings` and `uapi` to implement `Zeroable` and use other
items from pin-init.

Co-developed-by: Miguel Ojeda <ojeda@...nel.org>
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
Link: https://rust-for-linux.zulipchat.com/#narrow/channel/291565-Help/topic/Zeroable.20trait.20for.20C.20structs/near/510264158
Signed-off-by: Benno Lossin <lossin@...nel.org>
---
 rust/Makefile                     | 6 ++++--
 scripts/generate_rust_analyzer.py | 4 ++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/rust/Makefile b/rust/Makefile
index 3aca903a7d08..1bee11ad5452 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -513,17 +513,19 @@ $(obj)/ffi.o: private skip_gendwarfksyms = 1
 $(obj)/ffi.o: $(src)/ffi.rs $(obj)/compiler_builtins.o FORCE
 	+$(call if_changed_rule,rustc_library)
 
-$(obj)/bindings.o: private rustc_target_flags = --extern ffi
+$(obj)/bindings.o: private rustc_target_flags = --extern ffi --extern pin_init
 $(obj)/bindings.o: $(src)/bindings/lib.rs \
     $(obj)/ffi.o \
+    $(obj)/pin_init.o \
     $(obj)/bindings/bindings_generated.rs \
     $(obj)/bindings/bindings_helpers_generated.rs FORCE
 	+$(call if_changed_rule,rustc_library)
 
-$(obj)/uapi.o: private rustc_target_flags = --extern ffi
+$(obj)/uapi.o: private rustc_target_flags = --extern ffi --extern pin_init
 $(obj)/uapi.o: private skip_gendwarfksyms = 1
 $(obj)/uapi.o: $(src)/uapi/lib.rs \
     $(obj)/ffi.o \
+    $(obj)/pin_init.o \
     $(obj)/uapi/uapi_generated.rs FORCE
 	+$(call if_changed_rule,rustc_library)
 
diff --git a/scripts/generate_rust_analyzer.py b/scripts/generate_rust_analyzer.py
index fe663dd0c43b..ac1ee1a32495 100755
--- a/scripts/generate_rust_analyzer.py
+++ b/scripts/generate_rust_analyzer.py
@@ -137,8 +137,8 @@ def generate_crates(srctree, objtree, sysroot_src, external_src, cfgs):
             "exclude_dirs": [],
         }
 
-    append_crate_with_generated("bindings", ["core", "ffi"])
-    append_crate_with_generated("uapi", ["core", "ffi"])
+    append_crate_with_generated("bindings", ["core", "ffi", "pin_init"])
+    append_crate_with_generated("uapi", ["core", "ffi", "pin_init"])
     append_crate_with_generated("kernel", ["core", "macros", "build_error", "pin_init", "ffi", "bindings", "uapi"])
 
     def is_root_crate(build_file, target):
-- 
2.49.0