From: Minfei Huang <mnfhu...@gmail.com>
It is not elegance, if we use function directly as the argument, like
following:
int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
struct module *, unsigned long),
void *data);
Here introduce a type defined function kallsyms_cmp_symbol_t. Now
we can use these type defined function directly, if we want to pass
the function as the argument.
int module_kallsyms_on_each_symbol(kallsyms_cmp_symbol_t fn,
void *data);
Signed-off-by: Minfei Huang <mnfhu...@gmail.com>
---
include/linux/kallsyms.h | 10 +++-------
include/linux/module.h | 13 ++++++-------
kernel/kallsyms.c | 4 +---
kernel/module.c | 4 +---
4 files changed, 11 insertions(+), 20 deletions(-)
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 6883e19..e8ed37d 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -8,6 +8,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/stddef.h>
+#include <linux/module.h>
#define KSYM_NAME_LEN 128
#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
@@ -20,9 +21,7 @@ struct module;
unsigned long kallsyms_lookup_name(const char *name);
/* Call a function on each kallsyms symbol in the core kernel */
-int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
- unsigned long),
- void *data);
+int kallsyms_on_each_symbol(kallsyms_cmp_symbol_t fn, void *data);
extern int kallsyms_lookup_size_offset(unsigned long addr,
unsigned long *symbolsize,
@@ -52,10 +51,7 @@ static inline unsigned long kallsyms_lookup_name(const char
*name)
return 0;
}
-static inline int kallsyms_on_each_symbol(int (*fn)(void *, const char *,
- struct module *,
- unsigned long),
- void *data)
+static inline int kallsyms_on_each_symbol(kallsyms_cmp_symbol_t fn, void *data)
{
return 0;
}
diff --git a/include/linux/module.h b/include/linux/module.h
index 1e125b1..6a05a24 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -479,9 +479,10 @@ int module_get_kallsym(unsigned int symnum, unsigned long
*value, char *type,
/* Look for this name: can be of form module:name. */
unsigned long module_kallsyms_lookup_name(const char *name);
-int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
- struct module *, unsigned long),
- void *data);
+typedef int (*kallsyms_cmp_symbol_t)(void *, const char *,
+ struct module *, unsigned long);
+
+int module_kallsyms_on_each_symbol(kallsyms_cmp_symbol_t fn, void *data);
extern void __module_put_and_exit(struct module *mod, long code)
__attribute__((noreturn));
@@ -637,10 +638,8 @@ static inline unsigned long
module_kallsyms_lookup_name(const char *name)
return 0;
}
-static inline int module_kallsyms_on_each_symbol(int (*fn)(void *, const char
*,
- struct module *,
- unsigned long),
- void *data)
+static inline int module_kallsyms_on_each_symbol(
+ kallsyms_cmp_symbol_t fn, void *data)
{
return 0;
}
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 5c5987f..be5786b 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -193,9 +193,7 @@ unsigned long kallsyms_lookup_name(const char *name)
}
EXPORT_SYMBOL_GPL(kallsyms_lookup_name);
-int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
- unsigned long),
- void *data)
+int kallsyms_on_each_symbol(kallsyms_cmp_symbol_t fn, void *data)
{
char namebuf[KSYM_NAME_LEN];
unsigned long i;
diff --git a/kernel/module.c b/kernel/module.c
index 1400c0b..67ed39b 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3811,9 +3811,7 @@ unsigned long module_kallsyms_lookup_name(const char
*name)
return ret;
}
-int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
- struct module *, unsigned long),
- void *data)
+int module_kallsyms_on_each_symbol(kallsyms_cmp_symbol_t fn, void *data)
{
struct module *mod;
unsigned int i;
--
2.2.2
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