diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
index cf5ee9b0b393..84ee232278a6 100644
--- a/arch/parisc/include/asm/cmpxchg.h
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -72,7 +72,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size)
 #endif
 	case 4: return __cmpxchg_u32((unsigned int *)ptr,
 				     (unsigned int)old, (unsigned int)new_);
-	case 1: return __cmpxchg_u8((u8 *)ptr, (u8)old, (u8)new_);
+	case 1: return __cmpxchg_u8((u8 *)ptr, old & 0xff, new_ & 0xff);
 	}
 	__cmpxchg_called_with_bad_pointer();
 	return old;
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 11ece0d07374..b5fbcd2c1780 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -272,7 +272,6 @@ on downward growing arches, it looks like this:
 	regs->gr[23] = 0;				\
 } while(0)
 
-struct task_struct;
 struct mm_struct;
 
 /* Free all resources held by a thread. */
diff --git a/arch/parisc/math-emu/fpu.h b/arch/parisc/math-emu/fpu.h
index 853c19c03828..dec951d40286 100644
--- a/arch/parisc/math-emu/fpu.h
+++ b/arch/parisc/math-emu/fpu.h
@@ -5,34 +5,10 @@
  * Floating-point emulation code
  *  Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org>
  */
-/*
- * BEGIN_DESC
- * 
- *  File: 
- *      @(#)	pa/fp/fpu.h		$Revision: 1.1 $
- * 
- *  Purpose:
- *      <<please update with a synopis of the functionality provided by this file>>
- * 
- * 
- * END_DESC  
-*/
-
-#ifdef __NO_PA_HDRS
-    PA header file -- do not include this header file for non-PA builds.
-#endif
-
 
 #ifndef _MACHINE_FPU_INCLUDED /* allows multiple inclusion */
 #define _MACHINE_FPU_INCLUDED
 
-#if 0
-#ifndef _SYS_STDSYMS_INCLUDED
-#    include <sys/stdsyms.h>
-#endif   /* _SYS_STDSYMS_INCLUDED  */
-#include  <machine/pdc/pdc_rqsts.h>
-#endif
-
 #define PA83_FPU_FLAG    0x00000001
 #define PA89_FPU_FLAG    0x00000002
 #define PA2_0_FPU_FLAG   0x00000010
@@ -43,21 +19,19 @@
 #define COPR_FP 	0x00000080	/* Floating point -- Coprocessor 0 */
 #define SFU_MPY_DIVIDE	0x00008000	/* Multiply/Divide __ SFU 0 */
 
-
 #define EM_FPU_TYPE_OFFSET 272
 
 /* version of EMULATION software for COPR,0,0 instruction */
 #define EMULATION_VERSION 4
 
 /*
- * The only was to differeniate between TIMEX and ROLEX (or PCX-S and PCX-T)
- * is thorough the potential type field from the PDC_MODEL call.  The 
- * following flags are used at assist this differeniation.
+ * The only way to differentiate between TIMEX and ROLEX (or PCX-S and PCX-T)
+ * is through the potential type field from the PDC_MODEL call.
+ * The following flags are used to assist this differentiation.
  */
 
 #define ROLEX_POTENTIAL_KEY_FLAGS	PDC_MODEL_CPU_KEY_WORD_TO_IO
 #define TIMEX_POTENTIAL_KEY_FLAGS	(PDC_MODEL_CPU_KEY_QUAD_STORE | \
 					 PDC_MODEL_CPU_KEY_RECIP_SQRT)
 
-
 #endif /* ! _MACHINE_FPU_INCLUDED */
diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index a086dd34f932..4f501e4842ab 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -125,7 +125,7 @@ config AGP_HP_ZX1
 
 config AGP_PARISC
 	tristate "HP Quicksilver AGP support"
-	depends on AGP && PARISC && 64BIT
+	depends on AGP && PARISC && 64BIT && IOMMU_SBA
 	help
 	  This option gives you AGP GART support for the HP Quicksilver
 	  AGP bus adapter on HP PA-RISC machines (Ok, just on the C8000