5.15-stable review patch. If anyone has any objections, please let me know.
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From: Jiri Olsa jolsa@kernel.org
[ Upstream commit d721def7392a7348ffb9f3583b264239cbd3702c ]
Making 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 option is defined).
Cc: Christoph Hellwig hch@lst.de Reviewed-by: Masami Hiramatsu mhiramat@kernel.org Signed-off-by: Jiri Olsa jolsa@kernel.org Link: https://lore.kernel.org/r/20220510122616.2652285-2-jolsa@kernel.org Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/kallsyms.h | 7 ++++++- kernel/kallsyms.c | 2 -- 2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h index a1d6fc82d7f06..eae9f423bd648 100644 --- a/include/linux/kallsyms.h +++ b/include/linux/kallsyms.h @@ -74,11 +74,11 @@ static inline void *dereference_symbol_descriptor(void *ptr) return ptr; }
+#ifdef CONFIG_KALLSYMS int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *, unsigned long), void *data);
-#ifdef CONFIG_KALLSYMS /* Lookup the address for a symbol. Returns 0 if not found. */ unsigned long kallsyms_lookup_name(const char *name);
@@ -172,6 +172,11 @@ static inline bool kallsyms_show_value(const struct cred *cred) return false; }
+static inline int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *, + unsigned long), void *data) +{ + return -EOPNOTSUPP; +} #endif /*CONFIG_KALLSYMS*/
static inline void print_ip_sym(const char *loglvl, unsigned long ip) diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c index 0ba87982d017f..e0d9f77cf2d4b 100644 --- a/kernel/kallsyms.c +++ b/kernel/kallsyms.c @@ -204,7 +204,6 @@ unsigned long kallsyms_lookup_name(const char *name) return module_kallsyms_lookup_name(name); }
-#ifdef CONFIG_LIVEPATCH /* * Iterate over all symbols in vmlinux. For symbols from modules use * module_kallsyms_on_each_symbol instead. @@ -226,7 +225,6 @@ int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *, } return 0; } -#endif /* CONFIG_LIVEPATCH */
static unsigned long get_symbol_pos(unsigned long addr, unsigned long *symbolsize,