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-rw-r--r--arch/um/include/as-layout.h19
-rw-r--r--arch/um/include/common-offsets.h3
2 files changed, 4 insertions, 18 deletions
diff --git a/arch/um/include/as-layout.h b/arch/um/include/as-layout.h
index a2008f550fe..606bb5c7fdf 100644
--- a/arch/um/include/as-layout.h
+++ b/arch/um/include/as-layout.h
@@ -29,21 +29,10 @@
#define _AC(X, Y) __AC(X, Y)
#endif
-/*
- * The "- 1"'s are to avoid gcc complaining about integer overflows
- * and unrepresentable decimal constants. With 3-level page tables,
- * TASK_SIZE is 0x80000000, which gets turned into its signed decimal
- * equivalent in asm-offsets.s. gcc then complains about that being
- * unsigned only in C90. To avoid that, UM_TASK_SIZE is defined as
- * TASK_SIZE - 1. To compensate, we need to add the 1 back here.
- * However, adding it back to UM_TASK_SIZE produces more gcc
- * complaints. So, I adjust the thing being subtracted from
- * UM_TASK_SIZE instead. Bah.
- */
-#define STUB_CODE _AC((unsigned long), \
- UM_TASK_SIZE - (2 * UM_KERN_PAGE_SIZE - 1))
-#define STUB_DATA _AC((unsigned long), UM_TASK_SIZE - (UM_KERN_PAGE_SIZE - 1))
-#define STUB_START _AC(, STUB_CODE)
+#define STUB_START _AC(, 0x100000)
+#define STUB_CODE _AC((unsigned long), STUB_START)
+#define STUB_DATA _AC((unsigned long), STUB_CODE + UM_KERN_PAGE_SIZE)
+#define STUB_END _AC((unsigned long), STUB_DATA + UM_KERN_PAGE_SIZE)
#ifndef __ASSEMBLY__
diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h
index 5b67d7ced2a..b54bd35585c 100644
--- a/arch/um/include/common-offsets.h
+++ b/arch/um/include/common-offsets.h
@@ -39,6 +39,3 @@ DEFINE(UM_HZ, HZ);
DEFINE(UM_USEC_PER_SEC, USEC_PER_SEC);
DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC);
DEFINE(UM_NSEC_PER_USEC, NSEC_PER_USEC);
-
-/* See as-layout.h for an explanation of the "- 1". Bah. */
-DEFINE(UM_TASK_SIZE, TASK_SIZE - 1);