kmap: fix build errors with DEBUG_HIGHMEM enabled

commit 4ff1fa278b0bd1b2dd3c42efc0cb86788ffe05d5 upstream.

d451564 broke ARM by requiring KM_IRQ_PTE, KM_NMI and KM_NMI_PTE to
always be defined.  Solve this by providing invalid definitions for
these constants, but only if CONFIG_DEBUG_HIGHMEM is enabled.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
index d16ec97ec9a9948fbb7de727164a006bfe6eeae7..c019949a5189dc725a937006eb8445c18d0ad2ef 100644 (file)
--- a/arch/arm/include/asm/kmap_types.h
+++ b/arch/arm/include/asm/kmap_types.h
@@ -22,4 +22,10 @@ enum km_type {
        KM_TYPE_NR
 };
 
+#ifdef CONFIG_DEBUG_HIGHMEM
+#define KM_NMI         (-1)
+#define KM_NMI_PTE     (-1)
+#define KM_IRQ_PTE     (-1)
+#endif
+
 #endif