[PATCH 4.4 40/48] RISC-V: include linux/ftrace.h in asm-prototypes.h

Greg Kroah-Hartman
2018-10-18T18:07:24Z

From: James Cowgill <jcowgill@debian.org>

[ Upstream commit 57a489786de9ec37d6e25ef1305dc337047f0236 ]

Building a riscv kernel with CONFIG_FUNCTION_TRACER and
CONFIG_MODVERSIONS enabled results in these two warnings:

MODPOST vmlinux.o
WARNING: EXPORT symbol "return_to_handler" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.

When exporting symbols from an assembly file, the MODVERSIONS code
requires their prototypes to be defined in asm-prototypes.h (see
scripts/Makefile.build). Since both of these symbols have prototypes
defined in linux/ftrace.h, include this header from RISC-V's
asm-prototypes.h.

Reported-by: Karsten Merker <merker@debian.org>
Signed-off-by: James Cowgill <jcowgill@debian.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/riscv/include/asm/asm-prototypes.h | 7 +++++++
1 file changed, 7 insertions(+)
create mode 100644 arch/riscv/include/asm/asm-prototypes.h

--- /dev/null
+++ b/arch/riscv/include/asm/asm-prototypes.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_RISCV_PROTOTYPES_H
+
+#include <linux/ftrace.h>
+#include <asm-generic/asm-prototypes.h>
+
+#endif /* _ASM_RISCV_PROTOTYPES_H */