linux-kernel - [PATCH] ftrace: Remove unused list 'ftrace_direct

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Message-ID: <20240504132303.67538-1-linux@treblig.org>
Date: Sat,  4 May 2024 14:23:03 +0100
From: linux@...blig.org
To: rostedt@...dmis.org,
	mhiramat@...nel.org
Cc: linux-trace-kernel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] ftrace: Remove unused list 'ftrace_direct_funcs'

From: "Dr. David Alan Gilbert" <linux@...blig.org>

Commit 8788ca164eb4b ("ftrace: Remove the legacy _ftrace_direct API")
stopped using 'ftrace_direct_funcs' (and the associated
struct ftrace_direct_func).  Remove them.

Build tested only (on x86-64 with FTRACE and DYNAMIC_FTRACE
enabled)

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 include/linux/ftrace.h | 1 -
 kernel/trace/ftrace.c  | 8 --------
 2 files changed, 9 deletions(-)

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 54d53f345d149..b01cca36147ff 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -83,7 +83,6 @@ static inline void early_trace_init(void) { }
 
 struct module;
 struct ftrace_hash;
-struct ftrace_direct_func;
 
 #if defined(CONFIG_FUNCTION_TRACER) && defined(CONFIG_MODULES) && \
 	defined(CONFIG_DYNAMIC_FTRACE)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index da1710499698b..b18b4ece3d7c9 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -5318,14 +5318,6 @@ ftrace_set_addr(struct ftrace_ops *ops, unsigned long *ips, unsigned int cnt,
 
 #ifdef CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
 
-struct ftrace_direct_func {
-	struct list_head	next;
-	unsigned long		addr;
-	int			count;
-};
-
-static LIST_HEAD(ftrace_direct_funcs);
-
 static int register_ftrace_function_nolock(struct ftrace_ops *ops);
 
 /*
-- 
2.45.0