linux-kernel - [PATCH v2 07/11] ARM: mark setup_machine_tags() stub as __init _

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Date:   Fri, 19 Apr 2019 18:47:50 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-arch <linux-arch@...r.kernel.org>
Cc:     linux-s390@...r.kernel.org,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Arnd Bergmann <arnd@...db.de>, linuxppc-dev@...ts.ozlabs.org,
        x86@...nel.org, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        linux-mtd@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Christophe Leroy <christophe.leroy@....fr>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Subject: [PATCH v2 07/11] ARM: mark setup_machine_tags() stub as __init __noreturn

This prepares to move CONFIG_OPTIMIZE_INLINING from x86 to a common
place. We need to eliminate potential issues beforehand.

If it is enabled for arm, Clang build results in the following modpost
warning:

WARNING: vmlinux.o(.text+0x1124): Section mismatch in reference from the function setup_machine_tags() to the function .init.text:early_print()
The function setup_machine_tags() references
the function __init early_print().
This is often because setup_machine_tags lacks a __init
annotation or the annotation of early_print is wrong.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

Changes in v2:
  - new patch

 arch/arm/kernel/atags.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/atags.h b/arch/arm/kernel/atags.h
index 201100226301..067e12edc341 100644
--- a/arch/arm/kernel/atags.h
+++ b/arch/arm/kernel/atags.h
@@ -5,7 +5,7 @@ void convert_to_tag_list(struct tag *tags);
 const struct machine_desc *setup_machine_tags(phys_addr_t __atags_pointer,
 	unsigned int machine_nr);
 #else
-static inline const struct machine_desc *
+static inline const struct machine_desc * __init __noreturn
 setup_machine_tags(phys_addr_t __atags_pointer, unsigned int machine_nr)
 {
 	early_print("no ATAGS support: can't continue\n");
-- 
2.17.1