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-rw-r--r--mm/kfence/report.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/mm/kfence/report.c b/mm/kfence/report.c
index 519f037720f5..e3f71451ad9e 100644
--- a/mm/kfence/report.c
+++ b/mm/kfence/report.c
@@ -20,6 +20,11 @@
#include "kfence.h"
+/* May be overridden by <asm/kfence.h>. */
+#ifndef ARCH_FUNC_PREFIX
+#define ARCH_FUNC_PREFIX ""
+#endif
+
extern bool no_hash_pointers;
/* Helper function to either print to a seq_file or to console. */
@@ -67,8 +72,9 @@ static int get_stack_skipnr(const unsigned long stack_entries[], int num_entries
for (skipnr = 0; skipnr < num_entries; skipnr++) {
int len = scnprintf(buf, sizeof(buf), "%ps", (void *)stack_entries[skipnr]);
- if (str_has_prefix(buf, "kfence_") || str_has_prefix(buf, "__kfence_") ||
- !strncmp(buf, "__slab_free", len)) {
+ if (str_has_prefix(buf, ARCH_FUNC_PREFIX "kfence_") ||
+ str_has_prefix(buf, ARCH_FUNC_PREFIX "__kfence_") ||
+ !strncmp(buf, ARCH_FUNC_PREFIX "__slab_free", len)) {
/*
* In case of tail calls from any of the below
* to any of the above.
@@ -77,10 +83,10 @@ static int get_stack_skipnr(const unsigned long stack_entries[], int num_entries
}
/* Also the *_bulk() variants by only checking prefixes. */
- if (str_has_prefix(buf, "kfree") ||
- str_has_prefix(buf, "kmem_cache_free") ||
- str_has_prefix(buf, "__kmalloc") ||
- str_has_prefix(buf, "kmem_cache_alloc"))
+ if (str_has_prefix(buf, ARCH_FUNC_PREFIX "kfree") ||
+ str_has_prefix(buf, ARCH_FUNC_PREFIX "kmem_cache_free") ||
+ str_has_prefix(buf, ARCH_FUNC_PREFIX "__kmalloc") ||
+ str_has_prefix(buf, ARCH_FUNC_PREFIX "kmem_cache_alloc"))
goto found;
}
if (fallback < num_entries)