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authorJiri Olsa <jolsa@kernel.org>2024-01-11 22:43:53 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-01-15 18:51:26 +0100
commitccb7eef5f2f3ab3a4c3bb00f06933cb691e21516 (patch)
tree18352eb020c024818a66aed19bad94d0fd2ec9a2
parentab3a3aadb373b47a1f401c7626608b1b214cec9e (diff)
kallsyms: Make module_kallsyms_on_each_symbol generally available
commit 73feb8d5fa3b755bb51077c0aabfb6aa556fd498 upstream. Making module_kallsyms_on_each_symbol generally available, so it can be used outside CONFIG_LIVEPATCH option in following changes. Rather than adding another ifdef option let's make the function generally available (when CONFIG_KALLSYMS and CONFIG_MODULES options are defined). Cc: Christoph Hellwig <hch@lst.de> Acked-by: Song Liu <song@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20221025134148.3300700-2-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Stable-dep-of: 926fe783c8a6 ("tracing/kprobes: Fix symbol counting logic by looking at modules as well") Signed-off-by: Markus Boehme <markubo@amazon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--include/linux/module.h9
-rw-r--r--kernel/module.c2
2 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/module.h b/include/linux/module.h
index c9f1200b2312..701c150485b2 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -867,8 +867,17 @@ static inline bool module_sig_ok(struct module *module)
}
#endif /* CONFIG_MODULE_SIG */
+#if defined(CONFIG_MODULES) && defined(CONFIG_KALLSYMS)
int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
struct module *, unsigned long),
void *data);
+#else
+static inline int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
+ struct module *, unsigned long),
+ void *data)
+{
+ return -EOPNOTSUPP;
+}
+#endif /* CONFIG_MODULES && CONFIG_KALLSYMS */
#endif /* _LINUX_MODULE_H */
diff --git a/kernel/module.c b/kernel/module.c
index 3c90840133c0..ba9f2bb57889 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -4482,7 +4482,6 @@ unsigned long module_kallsyms_lookup_name(const char *name)
return ret;
}
-#ifdef CONFIG_LIVEPATCH
int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
struct module *, unsigned long),
void *data)
@@ -4514,7 +4513,6 @@ out:
mutex_unlock(&module_mutex);
return ret;
}
-#endif /* CONFIG_LIVEPATCH */
#endif /* CONFIG_KALLSYMS */
static void cfi_init(struct module *mod)