ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion()

[mirror_ubuntu-bionic-kernel.git] / include / linux / cacheinfo.h

diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h
index 0c6f658054d2a5bb2f575757ed2ba39035c95d91..89397e30e2695ab48f8092eb8d8d965fb7e284d9 100644 (file)
--- a/include/linux/cacheinfo.h
+++ b/include/linux/cacheinfo.h
@@ -97,6 +97,23 @@ int func(unsigned int cpu)                                   \
 struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu);
 int init_cache_level(unsigned int cpu);
 int populate_cache_leaves(unsigned int cpu);
+int cache_setup_acpi(unsigned int cpu);
+#ifndef CONFIG_ACPI
+/*
+ * acpi_find_last_cache_level is only called on ACPI enabled
+ * platforms using the PPTT for topology. This means that if
+ * the platform supports other firmware configuration methods
+ * we need to stub out the call when ACPI is disabled.
+ * ACPI enabled platforms not using PPTT won't be making calls
+ * to this function so we need not worry about them.
+ */
+static inline int acpi_find_last_cache_level(unsigned int cpu)
+{
+       return 0;
+}
+#else
+int acpi_find_last_cache_level(unsigned int cpu);
+#endif
 
 const struct attribute_group *cache_get_priv_group(struct cacheinfo *this_leaf);