arm: highmem: Fix CPU_DYING callback for kmap
Add CPUHP_AP_KMAP_DYING state support instead of
use cpu notify for CPU_DYING which is deprecated.
Change-Id: Idaaf628ef4c89f361391151db523f5ffefc5bcc1
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 61aff32..657b565 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -41,6 +41,7 @@
#ifdef CONFIG_ARCH_WANT_KMAP_ATOMIC_FLUSH
void kmap_atomic_flush_unused(void);
+int kmap_remove_unused_cpu(unsigned int cpu);
#else
static inline void kmap_atomic_flush_unused(void) { }
#endif
@@ -91,6 +92,10 @@
#endif /* CONFIG_HIGHMEM */
+#if !defined(CONFIG_HIGHMEM) || !defined(CONFIG_ARCH_WANT_KMAP_ATOMIC_FLUSH)
+static inline int kmap_remove_unused_cpu(unsigned int cpu) { return 0; }
+#endif
+
#if defined(CONFIG_HIGHMEM) || defined(CONFIG_X86_32)
DECLARE_PER_CPU(int, __kmap_atomic_idx);