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-rw-r--r--arch/s390/include/asm/setup.h1
-rw-r--r--arch/s390/kernel/setup.c4
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 9c30ebe046f3..be02f0558048 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -11,6 +11,7 @@
#define PARMAREA 0x10400
+#define PARMAREA_END 0x11000
/*
* Machine features detected in early.c
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index d82a9ec64ea9..c637c12f9e37 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -674,12 +674,12 @@ static void __init reserve_kernel(void)
#ifdef CONFIG_DMA_API_DEBUG
/*
* DMA_API_DEBUG code stumbles over addresses from the
- * range [_ehead, _stext]. Mark the memory as reserved
+ * range [PARMAREA_END, _stext]. Mark the memory as reserved
* so it is not used for CONFIG_DMA_API_DEBUG=y.
*/
memblock_reserve(0, PFN_PHYS(start_pfn));
#else
- memblock_reserve(0, (unsigned long)_ehead);
+ memblock_reserve(0, PARMAREA_END);
memblock_reserve((unsigned long)_stext, PFN_PHYS(start_pfn)
- (unsigned long)_stext);
#endif