/* Scoped access information. */
struct kcsan_scoped_access {
struct list_head list;
+ /* Access information. */
const volatile void *ptr;
size_t size;
int type;
+ /* Location where scoped access was set up. */
+ unsigned long ip;
};
/*
* Automatically call kcsan_end_scoped_access() when kcsan_scoped_access goes
return in_task() ? ¤t->kcsan_ctx : raw_cpu_ptr(&kcsan_cpu_ctx);
}
+static __always_inline void
+check_access(const volatile void *ptr, size_t size, int type, unsigned long ip);
+
/* Check scoped accesses; never inline because this is a slow-path! */
static noinline void kcsan_check_scoped_accesses(void)
{
struct kcsan_scoped_access *scoped_access;
ctx->scoped_accesses.prev = NULL; /* Avoid recursion. */
- list_for_each_entry(scoped_access, &ctx->scoped_accesses, list)
- __kcsan_check_access(scoped_access->ptr, scoped_access->size, scoped_access->type);
+ list_for_each_entry(scoped_access, &ctx->scoped_accesses, list) {
+ check_access(scoped_access->ptr, scoped_access->size,
+ scoped_access->type, scoped_access->ip);
+ }
ctx->scoped_accesses.prev = prev_save;
}
sa->ptr = ptr;
sa->size = size;
sa->type = type;
+ sa->ip = _RET_IP_;
if (!ctx->scoped_accesses.prev) /* Lazy initialize list head. */
INIT_LIST_HEAD(&ctx->scoped_accesses);
ctx->disable_count--;
- __kcsan_check_access(sa->ptr, sa->size, sa->type);
+ check_access(sa->ptr, sa->size, sa->type, sa->ip);
}
EXPORT_SYMBOL(kcsan_end_scoped_access);