diff --git a/arch/arm/include/asm/hwcap.h b/arch/arm/include/asm/hwcap.h
index c93a22a8b924737730edaf17ef3e5ceb7b94afc5..917626128a1da7d326f6816ae63c1495a0290bc3 100644
--- a/arch/arm/include/asm/hwcap.h
+++ b/arch/arm/include/asm/hwcap.h
@@ -25,7 +25,8 @@
 #define HWCAP_IDIVT	(1 << 18)
 #define HWCAP_IDIV	(HWCAP_IDIVA | HWCAP_IDIVT)
 
-#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+#if defined(__KERNEL__)
+#if !defined(__ASSEMBLY__)
 /*
  * This yields a mask that user programs can use to figure out what
  * instruction set this cpu supports.
@@ -33,5 +34,6 @@
 #define ELF_HWCAP	(elf_hwcap)
 extern unsigned int elf_hwcap;
 #endif
+#endif
 
 #endif
diff --git a/arch/arm/include/asm/swab.h b/arch/arm/include/asm/swab.h
index 32ee164a2f6bb73e066dd34debd6b1355f118f2a..b859d82e30cafb5489fdb0297319a570f8362df3 100644
--- a/arch/arm/include/asm/swab.h
+++ b/arch/arm/include/asm/swab.h
@@ -22,7 +22,8 @@
 #  define __SWAB_64_THRU_32__
 #endif
 
-#if defined(__KERNEL__) && __LINUX_ARM_ARCH__ >= 6
+#if defined(__KERNEL__)
+#if __LINUX_ARM_ARCH__ >= 6
 
 static inline __attribute_const__ __u32 __arch_swahb32(__u32 x)
 {
@@ -39,8 +40,10 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
 }
 #define __arch_swab32 __arch_swab32
 
-#else
+#endif
+#endif
 
+#if !defined(__KERNEL__) || __LINUX_ARM_ARCH__ < 6
 static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
 {
 	__u32 t;
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 4a1123783806b79ef559ed51a093353feb67070e..512cd1473454c9ba26eaf51fbb659a313aad96b0 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -427,7 +427,8 @@
 /*
  * The following syscalls are obsolete and no longer available for EABI.
  */
-#if defined(__ARM_EABI__) && !defined(__KERNEL__)
+#if !defined(__KERNEL__)
+#if defined(__ARM_EABI__)
 #undef __NR_time
 #undef __NR_umount
 #undef __NR_stime
@@ -441,6 +442,7 @@
 #undef __NR_syscall
 #undef __NR_ipc
 #endif
+#endif
 
 #ifdef __KERNEL__
 
diff --git a/arch/frv/include/asm/param.h b/arch/frv/include/asm/param.h
index 6859dd503ed366910cfe0fa85e7c0acf53e7f525..a52dca9a956660eb1656ad201cbed950db4f305c 100644
--- a/arch/frv/include/asm/param.h
+++ b/arch/frv/include/asm/param.h
@@ -1,22 +1,8 @@
 #ifndef _ASM_PARAM_H
 #define _ASM_PARAM_H
 
-#ifdef __KERNEL__
-#define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
-#define USER_HZ		100		/* .. some user interfaces are in "ticks" */
-#define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
 #define EXEC_PAGESIZE	16384
 
-#ifndef NOGROUP
-#define NOGROUP		(-1)
-#endif
-
-#define MAXHOSTNAMELEN		64	/* max length of hostname */
+#include <asm-generic/param.h>
 
 #endif /* _ASM_PARAM_H */
diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h
index 111ed52228921cac226a8994e404e3100defb73c..e4076b511829572ad590d36e362f463f93e813d6 100644
--- a/arch/ia64/include/asm/intrinsics.h
+++ b/arch/ia64/include/asm/intrinsics.h
@@ -201,16 +201,21 @@ extern long ia64_cmpxchg_called_with_bad_pointer (void);
 #endif
 
 #ifndef __ASSEMBLY__
-#if defined(CONFIG_PARAVIRT) && defined(__KERNEL__)
-#ifdef ASM_SUPPORTED
-# define IA64_INTRINSIC_API(name)	paravirt_ ## name
-#else
-# define IA64_INTRINSIC_API(name)	pv_cpu_ops.name
-#endif
-#define IA64_INTRINSIC_MACRO(name)	paravirt_ ## name
-#else
+
 #define IA64_INTRINSIC_API(name)	ia64_native_ ## name
 #define IA64_INTRINSIC_MACRO(name)	ia64_native_ ## name
+
+#if defined(__KERNEL__)
+#if defined(CONFIG_PARAVIRT)
+# undef IA64_INTRINSIC_API
+# undef IA64_INTRINSIC_MACRO
+# ifdef ASM_SUPPORTED
+#  define IA64_INTRINSIC_API(name)	paravirt_ ## name
+# else
+#  define IA64_INTRINSIC_API(name)	pv_cpu_ops.name
+# endif
+#define IA64_INTRINSIC_MACRO(name)	paravirt_ ## name
+#endif
 #endif
 
 /************************************************/
diff --git a/arch/m32r/include/asm/param.h b/arch/m32r/include/asm/param.h
index 94c770196048335767a40f9fd8fd649d11f1effb..fa207bdf96e75eb444f8e4687a8e6f2185211479 100644
--- a/arch/m32r/include/asm/param.h
+++ b/arch/m32r/include/asm/param.h
@@ -1,23 +1,7 @@
 #ifndef _ASM_M32R_PARAM_H
 #define _ASM_M32R_PARAM_H
 
-#ifdef __KERNEL__
-# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
-# define USER_HZ	100		/* .. some user interfaces are in "ticks" */
-# define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
-#define EXEC_PAGESIZE	4096
-
-#ifndef NOGROUP
-#define NOGROUP		(-1)
-#endif
-
-#define MAXHOSTNAMELEN	64	/* max length of hostname */
+#include <asm-generic/param.h>
 
 #endif /* _ASM_M32R_PARAM_H */
 
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 7897f05e316520ed5279e479eef15a4278a6afa9..f53f9ca73996de669ba0d500f7a8f78bfa13adcf 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -1,3 +1,5 @@
 include include/asm-generic/Kbuild.asm
 
-header-y += cachectl.h sgidefs.h sysmips.h
+header-y += cachectl.h
+header-y += sgidefs.h
+header-y += sysmips.h
diff --git a/arch/mips/include/asm/types.h b/arch/mips/include/asm/types.h
index 43bf70ebd3a2a8a79d7dff586c5810b5bcd55fb0..1228b25b290a39a049bf4ae50a3c26b2ca37b531 100644
--- a/arch/mips/include/asm/types.h
+++ b/arch/mips/include/asm/types.h
@@ -15,10 +15,14 @@
  * We don't use int-l64.h for the kernel anymore but still use it for
  * userspace to avoid code changes.
  */
-#if (_MIPS_SZLONG == 64) && !defined(__KERNEL__)
-# include <asm-generic/int-l64.h>
-#else
+#ifdef __KERNEL__
 # include <asm-generic/int-ll64.h>
+#else
+# if _MIPS_SZLONG == 64
+#  include <asm-generic/int-l64.h>
+# else
+#  include <asm-generic/int-ll64.h>
+# endif
 #endif
 
 /*
diff --git a/arch/mn10300/include/asm/param.h b/arch/mn10300/include/asm/param.h
index 789b1df41fcb2f08edb73cc433cab3d868696eb4..02a0ca6f13cee992cefa459462206d6971be6db3 100644
--- a/arch/mn10300/include/asm/param.h
+++ b/arch/mn10300/include/asm/param.h
@@ -11,24 +11,8 @@
 #ifndef _ASM_PARAM_H
 #define _ASM_PARAM_H
 
-#ifdef __KERNEL__
-#define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
-#define USER_HZ		100		/* .. some user interfaces are in
-					 * "ticks" */
-#define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
-#endif
+#include <asm-generic/param.h>
 
-#ifndef HZ
-#define HZ		100
-#endif
-
-#define EXEC_PAGESIZE	4096
-
-#ifndef NOGROUP
-#define NOGROUP		(-1)
-#endif
-
-#define MAXHOSTNAMELEN	64	/* max length of hostname */
 #define COMMAND_LINE_SIZE 256
 
 #endif /* _ASM_PARAM_H */
diff --git a/arch/s390/include/asm/chpid.h b/arch/s390/include/asm/chpid.h
index fc71d8a6709b53f34306fc6a286ad7d69770b372..8e88e2221771bf41f2c379d460da4e8fd3499cdd 100644
--- a/arch/s390/include/asm/chpid.h
+++ b/arch/s390/include/asm/chpid.h
@@ -6,7 +6,7 @@
  */
 
 #ifndef _ASM_S390_CHPID_H
-#define _ASM_S390_CHPID_H _ASM_S390_CHPID_H
+#define _ASM_S390_CHPID_H
 
 #include <linux/string.h>
 #include <linux/types.h>
diff --git a/arch/s390/include/asm/itcw.h b/arch/s390/include/asm/itcw.h
index a9bc5c36b32ae094678b6ac534c7795161f6443d..fb1bedd3dc0d7d3c42b41ae7af7d63ea13d26a0f 100644
--- a/arch/s390/include/asm/itcw.h
+++ b/arch/s390/include/asm/itcw.h
@@ -6,7 +6,7 @@
  */
 
 #ifndef _ASM_S390_ITCW_H
-#define _ASM_S390_ITCW_H _ASM_S390_ITCW_H
+#define _ASM_S390_ITCW_H
 
 #include <linux/types.h>
 #include <asm/fcx.h>
diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h
index 4e9c8ae0a6375211d10119c8be241ac1543c68d0..d49760e63506dd401df1e2f81da69982ed6a468c 100644
--- a/arch/s390/include/asm/mman.h
+++ b/arch/s390/include/asm/mman.h
@@ -11,9 +11,11 @@
 
 #include <asm-generic/mman.h>
 
-#if defined(__KERNEL__) && !defined(__ASSEMBLY__) && defined(CONFIG_64BIT)
+#if defined(__KERNEL__)
+#if !defined(__ASSEMBLY__) && defined(CONFIG_64BIT)
 int s390_mmap_check(unsigned long addr, unsigned long len);
 #define arch_mmap_check(addr,len,flags)	s390_mmap_check(addr,len)
 #endif
+#endif
 
 #endif /* __S390_MMAN_H__ */
diff --git a/arch/sparc/include/asm/siginfo.h b/arch/sparc/include/asm/siginfo.h
index 988e5d8ed11a228f8fd985d15ab9ee4f2d54ba9c..215900fce21b0f4bfd637a83585a9540e30c4662 100644
--- a/arch/sparc/include/asm/siginfo.h
+++ b/arch/sparc/include/asm/siginfo.h
@@ -16,8 +16,6 @@
 
 #ifdef __KERNEL__
 
-#include <linux/compat.h>
-
 #ifdef CONFIG_COMPAT
 
 struct compat_siginfo;
diff --git a/arch/tile/include/asm/signal.h b/arch/tile/include/asm/signal.h
index 1e1e616783ebfdd50ba937df77391816026ecaff..1e5e49aad54877e5664f5a0d56964845f8ad4b76 100644
--- a/arch/tile/include/asm/signal.h
+++ b/arch/tile/include/asm/signal.h
@@ -23,7 +23,8 @@
 
 #include <asm-generic/signal.h>
 
-#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+#if defined(__KERNEL__)
+#if !defined(__ASSEMBLY__)
 struct pt_regs;
 int restore_sigcontext(struct pt_regs *, struct sigcontext __user *);
 int setup_sigcontext(struct sigcontext __user *, struct pt_regs *);
@@ -33,5 +34,6 @@ void signal_fault(const char *type, struct pt_regs *,
 void trace_unhandled_signal(const char *type, struct pt_regs *regs,
 			    unsigned long address, int signo);
 #endif
+#endif
 
 #endif /* _ASM_TILE_SIGNAL_H */
diff --git a/include/asm-generic/param.h b/include/asm-generic/param.h
index cdf8251bfb6cfc33d559a358ed0fe17d1de9c2d6..835632a3b468f3c69432db1ea8729ed7dbf13e01 100644
--- a/include/asm-generic/param.h
+++ b/include/asm-generic/param.h
@@ -1,12 +1,6 @@
 #ifndef __ASM_GENERIC_PARAM_H
 #define __ASM_GENERIC_PARAM_H
 
-#ifdef __KERNEL__
-# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
-# define USER_HZ	100		/* some user interfaces are */
-# define CLOCKS_PER_SEC	(USER_HZ)       /* in "ticks" like times() */
-#endif
-
 #ifndef HZ
 #define HZ 100
 #endif
@@ -21,4 +15,11 @@
 
 #define MAXHOSTNAMELEN	64	/* max length of hostname */
 
+#ifdef __KERNEL__
+# undef HZ
+# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
+# define USER_HZ	100		/* some user interfaces are */
+# define CLOCKS_PER_SEC	(USER_HZ)       /* in "ticks" like times() */
+#endif
+
 #endif /* __ASM_GENERIC_PARAM_H */
diff --git a/include/linux/acct.h b/include/linux/acct.h
index 3e4737fa6cce71710982762cb80efab516033319..d537aa0ec414a2dc70b84580a0799096e601ee3c 100644
--- a/include/linux/acct.h
+++ b/include/linux/acct.h
@@ -146,6 +146,9 @@ extern void acct_exit_ns(struct pid_namespace *);
  *
  */
 
+#undef ACCT_VERSION
+#undef AHZ
+
 #ifdef CONFIG_BSD_PROCESS_ACCT_V3
 #define ACCT_VERSION	3
 #define AHZ		100
diff --git a/include/linux/cuda.h b/include/linux/cuda.h
index 6a3e6385d3f38fb63a113847b2e36bc51ebf8c33..9f9865ff781e3d69915b1839394e302874bd6462 100644
--- a/include/linux/cuda.h
+++ b/include/linux/cuda.h
@@ -5,6 +5,9 @@
  * Copyright (C) 1996 Paul Mackerras.
  */
 
+#ifndef _LINUX_CUDA_H
+#define _LINUX_CUDA_H
+
 /* CUDA commands (2nd byte) */
 #define CUDA_WARM_START		0
 #define CUDA_AUTOPOLL		1
@@ -34,3 +37,5 @@ extern int cuda_request(struct adb_request *req,
 extern void cuda_poll(void);
 
 #endif	/* __KERNEL */
+
+#endif /* _LINUX_CUDA_H */
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 31f0508d7da7a3274e207cc3389edb824ed77fd3..999b4f52e8e5c88b84fafb9e439bb5a931ef118c 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -7,15 +7,6 @@
 #include <asm/elf.h>
 #endif
 
-struct file;
-
-#ifndef elf_read_implies_exec
-  /* Executables for which elf_read_implies_exec() returns TRUE will
-     have the READ_IMPLIES_EXEC personality flag set automatically.
-     Override in asm/elf.h as needed.  */
-# define elf_read_implies_exec(ex, have_pt_gnu_stack)	0
-#endif
-
 /* 32-bit ELF base types. */
 typedef __u32	Elf32_Addr;
 typedef __u16	Elf32_Half;
@@ -414,6 +405,13 @@ typedef struct elf64_note {
 } Elf64_Nhdr;
 
 #ifdef __KERNEL__
+#ifndef elf_read_implies_exec
+  /* Executables for which elf_read_implies_exec() returns TRUE will
+     have the READ_IMPLIES_EXEC personality flag set automatically.
+     Override in asm/elf.h as needed.  */
+# define elf_read_implies_exec(ex, have_pt_gnu_stack)	0
+#endif
+
 #if ELF_CLASS == ELFCLASS32
 
 extern Elf32_Dyn _DYNAMIC [];
@@ -437,6 +435,8 @@ extern Elf64_Dyn _DYNAMIC [];
 #endif
 
 /* Optional callbacks to write extra ELF notes. */
+struct file;
+
 #ifndef ARCH_HAVE_EXTRA_ELF_NOTES
 static inline int elf_coredump_extra_notes_size(void) { return 0; }
 static inline int elf_coredump_extra_notes_write(struct file *file,
diff --git a/include/linux/isdn_divertif.h b/include/linux/isdn_divertif.h
index 07821ca5955f42872e5b2748272cc7bf73bc2c4c..a5a50f52380784115f5a1def2e76ac103055408f 100644
--- a/include/linux/isdn_divertif.h
+++ b/include/linux/isdn_divertif.h
@@ -10,6 +10,8 @@
  *
  */
 
+#ifndef _LINUX_ISDN_DIVERTIF_H
+#define _LINUX_ISDN_DIVERTIF_H
 
 /***********************************************************/
 /* magic value is also used to control version information */
@@ -45,3 +47,5 @@ typedef struct
 /*********************/
 extern int DIVERT_REG_NAME(isdn_divert_if *);
 #endif
+
+#endif /* _LINUX_ISDN_DIVERTIF_H */
diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h
index a3759cb0ac10560bc58a30341d228041afcac8f7..6d8c7251eb8d4147968c6a146473868caa0eebbc 100644
--- a/include/linux/mroute6.h
+++ b/include/linux/mroute6.h
@@ -43,9 +43,11 @@ typedef unsigned short mifi_t;
 typedef	__u32		if_mask;
 #define NIFBITS (sizeof(if_mask) * 8)        /* bits per mask */
 
-#if !defined(__KERNEL__) && !defined(DIV_ROUND_UP)
+#if !defined(__KERNEL__)
+#if !defined(DIV_ROUND_UP)
 #define	DIV_ROUND_UP(x,y)	(((x) + ((y) - 1)) / (y))
 #endif
+#endif
 
 typedef struct if_set {
 	if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];
diff --git a/include/linux/patchkey.h b/include/linux/patchkey.h
index d974a6e923721c05c457cfd5ba5147db9746497a..aefda0ec6e627d26d8ec7394f26d5aa01f0d37fd 100644
--- a/include/linux/patchkey.h
+++ b/include/linux/patchkey.h
@@ -32,7 +32,8 @@
 #  else
 #    error "could not determine byte order"
 #  endif
-#elif defined(__BYTE_ORDER)
+#else
+#if defined(__BYTE_ORDER)
 #  if __BYTE_ORDER == __BIG_ENDIAN
 #    define _PATCHKEY(id) (0xfd00|id)
 #  elif __BYTE_ORDER == __LITTLE_ENDIAN
@@ -41,5 +42,6 @@
 #    error "could not determine byte order"
 #  endif
 #endif
+#endif
 
 #endif /* _LINUX_PATCHKEY_H */
diff --git a/include/linux/pmu.h b/include/linux/pmu.h
index cafe98d969480dff52bd1e32887319f771627a3b..84e6a55a1202d2d9b4db2e3dbb1f448ef78aab54 100644
--- a/include/linux/pmu.h
+++ b/include/linux/pmu.h
@@ -6,6 +6,8 @@
  * Copyright (C) 1998 Paul Mackerras.
  */
 
+#ifndef _LINUX_PMU_H
+#define _LINUX_PMU_H
 
 #define PMU_DRIVER_VERSION	2
 
@@ -207,3 +209,5 @@ extern int pmu_sys_suspended;
 #endif
 
 #endif	/* __KERNEL__ */
+
+#endif /* _LINUX_PMU_H */
diff --git a/include/linux/sound.h b/include/linux/sound.h
index 44dcf057043250362eb007650eecdf3d2003ca39..fae20ba01fbf8e431359b1080be9afec1ab11d6a 100644
--- a/include/linux/sound.h
+++ b/include/linux/sound.h
@@ -1,3 +1,5 @@
+#ifndef _LINUX_SOUND_H
+#define _LINUX_SOUND_H
 
 /*
  * Minor numbers for the sound driver.
@@ -42,3 +44,5 @@ extern void unregister_sound_mixer(int unit);
 extern void unregister_sound_midi(int unit);
 extern void unregister_sound_dsp(int unit);
 #endif /* __KERNEL__ */
+
+#endif /* _LINUX_SOUND_H */
diff --git a/include/linux/soundcard.h b/include/linux/soundcard.h
index fe204fe39f7cae7a76164da83cb251f2c5dee7b4..dfcf86f013a9492624ba14874be39380199ed236 100644
--- a/include/linux/soundcard.h
+++ b/include/linux/soundcard.h
@@ -198,7 +198,8 @@ typedef struct seq_event_rec {
 #  else
 #    error "could not determine byte order"
 #  endif
-#elif defined(__BYTE_ORDER)
+#else
+# if defined(__BYTE_ORDER)
 #  if __BYTE_ORDER == __BIG_ENDIAN
 #    define AFMT_S16_NE AFMT_S16_BE
 #  elif __BYTE_ORDER == __LITTLE_ENDIAN
@@ -206,6 +207,7 @@ typedef struct seq_event_rec {
 #  else
 #    error "could not determine byte order"
 #  endif
+# endif
 #endif
 
 /*
diff --git a/include/video/edid.h b/include/video/edid.h
index 928c342b33d65040be5d2bfd958447d21074e92f..c5f198704912d22844cfc411948ee1ae80078494 100644
--- a/include/video/edid.h
+++ b/include/video/edid.h
@@ -1,16 +1,14 @@
 #ifndef __linux_video_edid_h__
 #define __linux_video_edid_h__
 
-#if !defined(__KERNEL__) || defined(CONFIG_X86)
-
 struct edid_info {
 	unsigned char dummy[128];
 };
 
 #ifdef __KERNEL__
+#ifdef CONFIG_X86
 extern struct edid_info edid_info;
-#endif /* __KERNEL__ */
-
+#endif
 #endif
 
 #endif /* __linux_video_edid_h__ */