linux-kernel - [PATCH 12/22] csky: fix arch_jump_label_transform

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Message-Id: <20231108125843.3806765-13-arnd@kernel.org>
Date:   Wed,  8 Nov 2023 13:58:33 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        linux-kbuild@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>, Matt Turner <mattst88@...il.com>,
        Vineet Gupta <vgupta@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
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Subject: [PATCH 12/22] csky: fix arch_jump_label_transform_static override

From: Arnd Bergmann <arnd@...db.de>

The arch_jump_label_transform_static() function in csky was originally meant to
override the generic __weak function, but that got changed to an #ifndef check.

This showed up as a missing-prototype warning:
arch/csky/kernel/jump_label.c:43:6: error: no previous prototype for 'arch_jump_label_transform_static' [-Werror=missing-prototypes]

Change the method to use the new method of having a #define and a prototype
for the global function.

Fixes: 7e6b9db27de9 ("jump_label: make initial NOP patching the special case")
Fixes: 4e8bb4ba5a55 ("csky: Add jump-label implementation")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/csky/include/asm/jump_label.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/csky/include/asm/jump_label.h b/arch/csky/include/asm/jump_label.h
index d488ba6084bc..98a3f4b168bd 100644
--- a/arch/csky/include/asm/jump_label.h
+++ b/arch/csky/include/asm/jump_label.h
@@ -43,5 +43,10 @@ static __always_inline bool arch_static_branch_jump(struct static_key *key,
 	return true;
 }
 
+enum jump_label_type;
+void arch_jump_label_transform_static(struct jump_entry *entry,
+				      enum jump_label_type type);
+#define arch_jump_label_transform_static arch_jump_label_transform_static
+
 #endif  /* __ASSEMBLY__ */
 #endif	/* __ASM_CSKY_JUMP_LABEL_H */
-- 
2.39.2