linux-kernel - [PATCH v8 8/9] kallsyms: Delete an unused parameter related to kallsyms_on_each

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Message-ID: <20221102084921.1615-9-thunder.leizhen@huawei.com>
Date:   Wed, 2 Nov 2022 16:49:20 +0800
From:   Zhen Lei <thunder.leizhen@...wei.com>
To:     Josh Poimboeuf <jpoimboe@...nel.org>,
        Jiri Kosina <jikos@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>,
        Petr Mladek <pmladek@...e.com>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        <live-patching@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Luis Chamberlain" <mcgrof@...nel.org>,
        <linux-modules@...r.kernel.org>,
        "Steven Rostedt" <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>
CC:     Zhen Lei <thunder.leizhen@...wei.com>,
        David Laight <David.Laight@...LAB.COM>
Subject: [PATCH v8 8/9] kallsyms: Delete an unused parameter related to kallsyms_on_each_symbol()

The parameter 'struct module *' in the hook function associated with
kallsyms_on_each_symbol() is no longer used. Delete it.

Suggested-by: Petr Mladek <pmladek@...e.com>
Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
---
 include/linux/kallsyms.h | 3 +--
 kernel/kallsyms.c        | 5 ++---
 kernel/trace/ftrace.c    | 3 +--
 3 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 0cd33be7142ad0d..5002ebe9dff5a0e 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -66,8 +66,7 @@ static inline void *dereference_symbol_descriptor(void *ptr)
 }
 
 #ifdef CONFIG_KALLSYMS
-int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
-				      unsigned long),
+int kallsyms_on_each_symbol(int (*fn)(void *, const char *, unsigned long),
 			    void *data);
 int kallsyms_on_each_match_symbol(int (*fn)(void *, unsigned long),
 				  const char *name, void *data);
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 0008ada2b135bef..5110d5501edeeb3 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -288,8 +288,7 @@ unsigned long kallsyms_lookup_name(const char *name)
  * Iterate over all symbols in vmlinux.  For symbols from modules use
  * module_kallsyms_on_each_symbol instead.
  */
-int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
-				      unsigned long),
+int kallsyms_on_each_symbol(int (*fn)(void *, const char *, unsigned long),
 			    void *data)
 {
 	char namebuf[KSYM_NAME_LEN];
@@ -299,7 +298,7 @@ int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
 
 	for (i = 0, off = 0; i < kallsyms_num_syms; i++) {
 		off = kallsyms_expand_symbol(off, namebuf, ARRAY_SIZE(namebuf));
-		ret = fn(data, namebuf, NULL, kallsyms_sym_address(i));
+		ret = fn(data, namebuf, kallsyms_sym_address(i));
 		if (ret != 0)
 			return ret;
 		cond_resched();
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index fbf2543111c05c2..e3ef4f0defb2e37 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -8267,8 +8267,7 @@ struct kallsyms_data {
 	size_t found;
 };
 
-static int kallsyms_callback(void *data, const char *name,
-			     struct module *mod, unsigned long addr)
+static int kallsyms_callback(void *data, const char *name, unsigned long addr)
 {
 	struct kallsyms_data *args = data;
 	const char **sym;
-- 
2.25.1