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-rw-r--r--scripts/mod/modpost.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index c64066dcd2e4..3aab410f020e 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1163,6 +1163,14 @@ static const struct sectioncheck *section_mismatch(
* fromsec = text section
* refsymname = *.constprop.*
*
+ * Pattern 6:
+ * Hide section mismatch warnings for ELF local symbols. The goal
+ * is to eliminate false positive modpost warnings caused by
+ * compiler-generated ELF local symbol names such as ".LANCHOR1".
+ * Autogenerated symbol names bypass modpost's "Pattern 2"
+ * whitelisting, which relies on pattern-matching against symbol
+ * names to work. (One situation where gcc can autogenerate ELF
+ * local symbols is when "-fsection-anchors" is used.)
**/
static int secref_whitelist(const struct sectioncheck *mismatch,
const char *fromsec, const char *fromsym,
@@ -1201,6 +1209,10 @@ static int secref_whitelist(const struct sectioncheck *mismatch,
match(fromsym, optim_symbols))
return 0;
+ /* Check for pattern 6 */
+ if (strstarts(fromsym, ".L"))
+ return 0;
+
return 1;
}