linux-kernel - [PATCH] arm/ftrace: Remove duplicate function

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Message-Id: <20200320065340.32685-1-guoren@kernel.org>
Date:   Fri, 20 Mar 2020 14:53:40 +0800
From:   guoren@...nel.org
To:     rostedt@...dmis.org, mingo@...hat.co, linux@...linux.org.uk
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Guo Ren <guoren@...ux.alibaba.com>
Subject: [PATCH] arm/ftrace: Remove duplicate function

From: Guo Ren <guoren@...ux.alibaba.com>

There is no arch implementation of ftrace_arch_code_modify_prepare in arm,
so just use the __weak one in kernel/trace/ftrace.c.

Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
---
 arch/arm/kernel/ftrace.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index 10499d44964a..f66ade28eb8a 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -56,11 +56,6 @@ static unsigned long adjust_address(struct dyn_ftrace *rec, unsigned long addr)
 	return addr;
 }
 
-int ftrace_arch_code_modify_prepare(void)
-{
-	return 0;
-}
-
 int ftrace_arch_code_modify_post_process(void)
 {
 	/* Make sure any TLB misses during machine stop are cleared. */
-- 
2.17.0