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Message-ID: <20241109165520.1461400-1-ojeda@kernel.org>
Date: Sat,  9 Nov 2024 17:55:20 +0100
From: Miguel Ojeda <ojeda@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>
Cc: Mark Rutland <mark.rutland@....com>,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	rust-for-linux@...r.kernel.org,
	patches@...ts.linux.dev,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: [PATCH RESEND] samples: rust: fix `rust_print` build making it a combined module

The `rust_print` module, when built as a module, fails to build with:

    ERROR: modpost: missing MODULE_LICENSE() in samples/rust/rust_print_events.o
    ERROR: modpost: "__tracepoint_rust_sample_loaded" [samples/rust/rust_print.ko] undefined!
    ERROR: modpost: "rust_do_trace_rust_sample_loaded" [samples/rust/rust_print.ko] undefined!

Fix it by building it as a combined one.

Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Closes: https://lore.kernel.org/all/20241108152149.28459a72@canb.auug.org.au/
Fixes: 91d39024e1b0 ("rust: samples: add tracepoint to Rust sample")
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
Steven: please feel free to rebase the original if that is better for
you, but in case you prefer a formal patch on top, here it is. Thanks!

 samples/rust/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/samples/rust/Makefile b/samples/rust/Makefile
index f29280ec4820..17017115657d 100644
--- a/samples/rust/Makefile
+++ b/samples/rust/Makefile
@@ -2,6 +2,8 @@
 ccflags-y += -I$(src)				# needed for trace events

 obj-$(CONFIG_SAMPLE_RUST_MINIMAL)		+= rust_minimal.o
-obj-$(CONFIG_SAMPLE_RUST_PRINT)			+= rust_print.o rust_print_events.o
+obj-$(CONFIG_SAMPLE_RUST_PRINT)			+= rust-print.o
+
+rust-print-y := rust_print.o rust_print_events.o

 subdir-$(CONFIG_SAMPLE_RUST_HOSTPROGS)		+= hostprogs

base-commit: 91d39024e1b02914cc5e2dbc137908e29b269ce4
--
2.47.0

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