[PATCH v3 1/3] module/kallsyms: Rename is_mapping_symbol() to is_local_mapping_symbol()

[Tiezhu Yang]

The helper function is_mapping_symbol() historically checks for both
local labels prefixed with ".L" or "L0" and mapping symbols prefixed
with "$".

Rename it to is_local_mapping_symbol() to better reflect this actual
behavior and scope, preventing conceptual confusion.

No functional change.

Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
---
 include/linux/module_symbol.h | 4 ++--
 kernel/module/kallsyms.c      | 2 +-
 scripts/faddr2line            | 2 +-
 scripts/mod/modpost.h         | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/module_symbol.h b/include/linux/module_symbol.h
index 574609aced99..ca76ed5cb489 100644
--- a/include/linux/module_symbol.h
+++ b/include/linux/module_symbol.h
@@ -7,8 +7,8 @@ enum ksym_flags {
 	KSYM_FLAG_GPL_ONLY	= 1 << 0,
 };
 
-/* This ignores the intensely annoying "mapping symbols" found in ELF files. */
-static inline bool is_mapping_symbol(const char *str)
+/* This ignores the intensely annoying "local or mapping symbols" found in ELF files. */
+static inline bool is_local_mapping_symbol(const char *str)
 {
 	if (str[0] == '.' && str[1] == 'L')
 		return true;
diff --git a/kernel/module/kallsyms.c b/kernel/module/kallsyms.c
index f23126d804b2..a595f8cd29b2 100644
--- a/kernel/module/kallsyms.c
+++ b/kernel/module/kallsyms.c
@@ -294,7 +294,7 @@ static const char *find_kallsyms_symbol(struct module *mod,
 		 * and inserted at a whim.
 		 */
 		if (*kallsyms_symbol_name(kallsyms, i) == '\0' ||
-		    is_mapping_symbol(kallsyms_symbol_name(kallsyms, i)))
+		    is_local_mapping_symbol(kallsyms_symbol_name(kallsyms, i)))
 			continue;
 
 		if (thisval <= addr && thisval > bestval) {
diff --git a/scripts/faddr2line b/scripts/faddr2line
index 622875396bcf..bda4ea20e39e 100755
--- a/scripts/faddr2line
+++ b/scripts/faddr2line
@@ -243,7 +243,7 @@ __faddr2line() {
 			local cur_sym_elf_size=${fields[2]}
 			local cur_sym_name=${fields[7]:-}
 
-			# is_mapping_symbol(cur_sym_name)
+			# is_local_mapping_symbol(cur_sym_name)
 			if [[ ${cur_sym_name} =~ ^(\.L|L0|\$) ]]; then
 				continue
 			fi
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 2aecb8f25c87..4173fff2788a 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -198,7 +198,7 @@ static inline bool is_valid_name(struct elf_info *elf, Elf_Sym *sym)
 
 	if (!name || !strlen(name))
 		return false;
-	return !is_mapping_symbol(name);
+	return !is_local_mapping_symbol(name);
 }
 
 /* symsearch.c */
-- 
2.42.0