diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c
index cfeb3f4a44afc0ef9cb6a5edf5e08d0d81ec32a1..7ed06a7399d52ed0e60226d5b9e4ec2d9476457d 100644
--- a/arch/um/drivers/chan_user.c
+++ b/arch/um/drivers/chan_user.c
@@ -11,10 +11,8 @@
 #include <termios.h>
 #include <sys/ioctl.h>
 #include "chan_user.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "um_malloc.h"
-#include "user.h"
 
 void generic_close(int fd, void *unused)
 {
diff --git a/arch/um/drivers/cow_sys.h b/arch/um/drivers/cow_sys.h
index f5701fd2ef90b2d8d1964c3222ebb155c2594ec1..7f2ed0b8824a53ea085be063f860c8a3844b55a1 100644
--- a/arch/um/drivers/cow_sys.h
+++ b/arch/um/drivers/cow_sys.h
@@ -3,7 +3,6 @@
 
 #include "kern_util.h"
 #include "os.h"
-#include "user.h"
 #include "um_malloc.h"
 
 static inline void *cow_malloc(int size)
diff --git a/arch/um/drivers/daemon_user.c b/arch/um/drivers/daemon_user.c
index f8e85e0bdace20fddc82ca805e6101bcc9c76a8d..a4fd7bc14af7ddbf3e290ec2084cc80b40d5c60a 100644
--- a/arch/um/drivers/daemon_user.c
+++ b/arch/um/drivers/daemon_user.c
@@ -17,7 +17,6 @@
 #include "net_user.h"
 #include "os.h"
 #include "um_malloc.h"
-#include "user.h"
 
 enum request_type { REQ_NEW_CONTROL };
 
diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c
index f5a981a16240e4d8dd92afca3fb710d9d4d84588..5b81d2574415e8a3984bd228517111c6e1378642 100644
--- a/arch/um/drivers/fd.c
+++ b/arch/um/drivers/fd.c
@@ -9,10 +9,8 @@
 #include <errno.h>
 #include <termios.h>
 #include "chan_user.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "um_malloc.h"
-#include "user.h"
 
 struct fd_chan {
 	int fd;
diff --git a/arch/um/drivers/harddog_user.c b/arch/um/drivers/harddog_user.c
index 84dce3fc590cb90eb9238107dc463cb70efd9fc0..0345d6206d40c6a03c9fa43097a1914ee195aacc 100644
--- a/arch/um/drivers/harddog_user.c
+++ b/arch/um/drivers/harddog_user.c
@@ -7,7 +7,6 @@
 #include <unistd.h>
 #include <errno.h>
 #include "os.h"
-#include "user.h"
 
 struct dog_data {
 	int stdin;
diff --git a/arch/um/drivers/mconsole_user.c b/arch/um/drivers/mconsole_user.c
index f8cf4c8bedef3eb91f161a6da67e474ae508464d..99209826adb15daffcd8ed299e00b42ae8ea752d 100644
--- a/arch/um/drivers/mconsole_user.c
+++ b/arch/um/drivers/mconsole_user.c
@@ -10,9 +10,7 @@
 #include <sys/socket.h>
 #include <sys/uio.h>
 #include <sys/un.h>
-#include "kern_constants.h"
 #include "mconsole.h"
-#include "user.h"
 
 static struct mconsole_command commands[] = {
 	/*
diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c
index 520118888f163755fce86c802f55b1ac2c83c8a5..05090c37fa8439417dc2cfbd456a39c911a9f7e5 100644
--- a/arch/um/drivers/net_user.c
+++ b/arch/um/drivers/net_user.c
@@ -12,10 +12,8 @@
 #include <sys/socket.h>
 #include <sys/wait.h>
 #include "net_user.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "um_malloc.h"
-#include "user.h"
 
 int tap_open_common(void *dev, char *gate_addr)
 {
diff --git a/arch/um/drivers/pcap_user.c b/arch/um/drivers/pcap_user.c
index 5f903587d69e4ae322672270c0bba17d2ec41295..702a75b190ee552876e2e0a7e715e536e3cd154c 100644
--- a/arch/um/drivers/pcap_user.c
+++ b/arch/um/drivers/pcap_user.c
@@ -9,9 +9,7 @@
 #include <asm/types.h>
 #include "net_user.h"
 #include "pcap_user.h"
-#include "kern_constants.h"
 #include "um_malloc.h"
-#include "user.h"
 
 #define PCAP_FD(p) (*(int *)(p))
 
diff --git a/arch/um/drivers/port_user.c b/arch/um/drivers/port_user.c
index b49bf56a56aa4a7b0b94a2b3709c972a144302f4..7b010b76ddf092cc7cd6322fcf49dd519a4d2ecf 100644
--- a/arch/um/drivers/port_user.c
+++ b/arch/um/drivers/port_user.c
@@ -10,11 +10,9 @@
 #include <unistd.h>
 #include <netinet/in.h>
 #include "chan_user.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "port.h"
 #include "um_malloc.h"
-#include "user.h"
 
 struct port_chan {
 	int raw;
diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c
index 1113911dcb2bfb70696785ac194089705c9c8693..cff2b75d31fd7b3bf53be49c75f6a887f8159129 100644
--- a/arch/um/drivers/pty.c
+++ b/arch/um/drivers/pty.c
@@ -12,10 +12,8 @@
 #include <termios.h>
 #include <sys/stat.h>
 #include "chan_user.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "um_malloc.h"
-#include "user.h"
 
 struct pty_chan {
 	void (*announce)(char *dev_name, int dev);
diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c
index cbacfc4e63e674341eded605cd508b2b61f06792..932b4d69bec20e9929f12426376aa617665be60a 100644
--- a/arch/um/drivers/slip_user.c
+++ b/arch/um/drivers/slip_user.c
@@ -11,12 +11,10 @@
 #include <string.h>
 #include <sys/termios.h>
 #include <sys/wait.h>
-#include "kern_constants.h"
 #include "net_user.h"
 #include "os.h"
 #include "slip.h"
 #include "um_malloc.h"
-#include "user.h"
 
 static int slip_user_init(void *data, void *dev)
 {
diff --git a/arch/um/drivers/slirp_user.c b/arch/um/drivers/slirp_user.c
index a0ada8fec72ab5cde45462e3a2ed0311a0561e50..db4adb639ff82e41c0f3025145953fab810ebb91 100644
--- a/arch/um/drivers/slirp_user.c
+++ b/arch/um/drivers/slirp_user.c
@@ -7,11 +7,9 @@
 #include <errno.h>
 #include <string.h>
 #include <sys/wait.h>
-#include "kern_constants.h"
 #include "net_user.h"
 #include "os.h"
 #include "slirp.h"
-#include "user.h"
 
 static int slirp_user_init(void *data, void *dev)
 {
diff --git a/arch/um/drivers/tty.c b/arch/um/drivers/tty.c
index 495858a090e4f49e50d4a79db016173ea4b3a6df..a97391f9ec54eea1c4cd290d87c9b2b243d9fa68 100644
--- a/arch/um/drivers/tty.c
+++ b/arch/um/drivers/tty.c
@@ -7,10 +7,8 @@
 #include <fcntl.h>
 #include <termios.h>
 #include "chan_user.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "um_malloc.h"
-#include "user.h"
 
 struct tty_chan {
 	char *dev;
diff --git a/arch/um/drivers/ubd_user.c b/arch/um/drivers/ubd_user.c
index b591bb9c41dd83f4b72152c42c8ae70c60218698..007b94d97726e7864a6ccd543038f76d7b488a88 100644
--- a/arch/um/drivers/ubd_user.c
+++ b/arch/um/drivers/ubd_user.c
@@ -16,7 +16,6 @@
 #include <sys/mman.h>
 #include <sys/param.h>
 #include "asm/types.h"
-#include "user.h"
 #include "ubd_user.h"
 #include "os.h"
 #include "cow.h"
diff --git a/arch/um/drivers/umcast_user.c b/arch/um/drivers/umcast_user.c
index 59c56fd6f52a1698493ae5d010196602d998212d..010fa2d849ecbf501c652914afe51737705261bc 100644
--- a/arch/um/drivers/umcast_user.c
+++ b/arch/um/drivers/umcast_user.c
@@ -15,11 +15,9 @@
 #include <unistd.h>
 #include <errno.h>
 #include <netinet/in.h>
-#include "kern_constants.h"
 #include "umcast.h"
 #include "net_user.h"
 #include "um_malloc.h"
-#include "user.h"
 
 static struct sockaddr_in *new_addr(char *addr, unsigned short port)
 {
diff --git a/arch/um/drivers/vde_user.c b/arch/um/drivers/vde_user.c
index c5c43253e6ce4994778205e1853e2026f19a0cae..b8c286748d3d3be5008a9c30e070948f56941d20 100644
--- a/arch/um/drivers/vde_user.c
+++ b/arch/um/drivers/vde_user.c
@@ -6,10 +6,8 @@
 #include <stddef.h>
 #include <errno.h>
 #include <libvdeplug.h>
-#include "kern_constants.h"
 #include "net_user.h"
 #include "um_malloc.h"
-#include "user.h"
 #include "vde.h"
 
 static int vde_user_init(void *data, void *dev)
diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c
index 2e1de57286045ab9cf606250059a4d094b486ab2..969110e56487cef57ea99787cb77890a84e81876 100644
--- a/arch/um/drivers/xterm.c
+++ b/arch/um/drivers/xterm.c
@@ -11,10 +11,8 @@
 #include <string.h>
 #include <termios.h>
 #include "chan_user.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "um_malloc.h"
-#include "user.h"
 #include "xterm.h"
 
 struct xterm_chan {
diff --git a/arch/um/kernel/skas/clone.c b/arch/um/kernel/skas/clone.c
index 2c8583c1a344df2003ee0f2371ca6ead0a085982..e1fd066a3525c20f4820c0227c42613984edabd4 100644
--- a/arch/um/kernel/skas/clone.c
+++ b/arch/um/kernel/skas/clone.c
@@ -8,7 +8,6 @@
 #include <asm/unistd.h>
 #include <sys/time.h>
 #include "as-layout.h"
-#include "kern_constants.h"
 #include "ptrace_user.h"
 #include "stub-data.h"
 #include "sysdep/stub.h"
diff --git a/arch/um/os-Linux/aio.c b/arch/um/os-Linux/aio.c
index 57e3d46c989cf0ba4ec4546d6e613e969537be3e..c5d039e1ff3b779736d987c213dc3e062160d66f 100644
--- a/arch/um/os-Linux/aio.c
+++ b/arch/um/os-Linux/aio.c
@@ -11,10 +11,8 @@
 #include <asm/unistd.h>
 #include "aio.h"
 #include "init.h"
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "os.h"
-#include "user.h"
 
 struct aio_thread_req {
 	enum aio_type type;
diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/arch/um/os-Linux/drivers/ethertap_user.c
index cc72cb2c1af61302ff98cc88516d0889dad40829..db3d6481375a7c55cf5885771093f9a784d1db43 100644
--- a/arch/um/os-Linux/drivers/ethertap_user.c
+++ b/arch/um/os-Linux/drivers/ethertap_user.c
@@ -13,11 +13,9 @@
 #include <sys/socket.h>
 #include <sys/wait.h>
 #include "etap.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "net_user.h"
 #include "um_malloc.h"
-#include "user.h"
 
 #define MAX_PACKET ETH_MAX_PACKET
 
diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c
index 2448be03fd7a5018691d3656d963d934b604c810..a2aacffdd907d1830aab84ba1148dd72450caa98 100644
--- a/arch/um/os-Linux/drivers/tuntap_user.c
+++ b/arch/um/os-Linux/drivers/tuntap_user.c
@@ -13,11 +13,9 @@
 #include <sys/socket.h>
 #include <sys/wait.h>
 #include <sys/uio.h>
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "os.h"
 #include "tuntap.h"
-#include "user.h"
 
 static int tuntap_user_init(void *data, void *dev)
 {
diff --git a/arch/um/os-Linux/elf_aux.c b/arch/um/os-Linux/elf_aux.c
index 953323799381574477272bf4b14d230672ffe1e3..d895271ad6f711485c94b6c8c17ebeb3d4314366 100644
--- a/arch/um/os-Linux/elf_aux.c
+++ b/arch/um/os-Linux/elf_aux.c
@@ -12,7 +12,6 @@
 #include "init.h"
 #include "elf_user.h"
 #include "mem_user.h"
-#include <kern_constants.h>
 
 typedef Elf32_auxv_t elf_auxv_t;
 
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index 140e587bc0adedf23debeb7183ad24c0c49d9267..b049a63bb74b060899888fdc731ca5cd5a137eee 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -13,9 +13,7 @@
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/un.h>
-#include "kern_constants.h"
 #include "os.h"
-#include "user.h"
 
 static void copy_stat(struct uml_stat *dst, const struct stat64 *src)
 {
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index feff22d64672d45c7652dcefdabf2278ba9e98e5..cf26c4a9a43a7c38549a2bcd76564eb554c32409 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -10,11 +10,9 @@
 #include <linux/limits.h>
 #include <sys/socket.h>
 #include <sys/wait.h>
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "os.h"
 #include "um_malloc.h"
-#include "user.h"
 
 struct helper_data {
 	void (*pre_exec)(void*);
diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index 0348b975e81cb3a5a4d067a8f3b39c5d2db1fff5..59c592cca25d9a6314d56e685949c3170a2af5e3 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -9,11 +9,9 @@
 #include <signal.h>
 #include <string.h>
 #include "irq_user.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "process.h"
 #include "um_malloc.h"
-#include "user.h"
 
 /*
  * Locked by irq_lock in arch/um/kernel/irq.c.  Changed by os_create_pollfd
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 8471b817d94f1b40bd7556dca9933123c22eef87..7a86dd516eb185476232df8581bee12b38bed196 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -12,7 +12,6 @@
 #include <sys/resource.h>
 #include "as-layout.h"
 #include "init.h"
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "os.h"
 #include "um_malloc.h"
diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c
index 62878cf1d33fb8efce33ff9572d080544207cf18..8e421e1d6d365450947771828160753d83c4c60b 100644
--- a/arch/um/os-Linux/mem.c
+++ b/arch/um/os-Linux/mem.c
@@ -14,9 +14,7 @@
 #include <sys/mman.h>
 #include <sys/param.h>
 #include "init.h"
-#include "kern_constants.h"
 #include "os.h"
-#include "user.h"
 
 /* Modified by which_tmpdir, which is called during early boot */
 static char *default_tmpdir = "/tmp";
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index 0c45dc8efb055243d9259da46f702760b773ce11..0ced30cd4ab8c162e2299f85f932ac7db6a76333 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -13,12 +13,10 @@
 #include <sys/wait.h>
 #include <asm/unistd.h>
 #include "init.h"
-#include "kern_constants.h"
 #include "longjmp.h"
 #include "os.h"
 #include "process.h"
 #include "skas_ptrace.h"
-#include "user.h"
 
 #define ARBITRARY_ADDR -1
 #define FAILURE_PID    -1
diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c
index 63d299df152bb266f614d576b47e9039df531cf4..34bb59bfa00be5dd81882336ec81fe217485546a 100644
--- a/arch/um/os-Linux/sigio.c
+++ b/arch/um/os-Linux/sigio.c
@@ -11,14 +11,12 @@
 #include <sched.h>
 #include <signal.h>
 #include <string.h>
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "init.h"
 #include "os.h"
 #include "process.h"
 #include "sigio.h"
 #include "um_malloc.h"
-#include "user.h"
 
 /*
  * Protected by sigio_lock(), also used by sigio_cleanup, which is an
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index 6ae180703a6361bf9a8f0a7efd01b17e72e6da0f..4fc3cd19ec69ae7c32cb22f386cd011feae85e54 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -15,7 +15,6 @@
 #include "process.h"
 #include "sysdep/barrier.h"
 #include "sysdep/sigcontext.h"
-#include "user.h"
 
 /* Copied from linux/compiler-gcc.h since we can't include it directly */
 #define barrier() __asm__ __volatile__("": : :"memory")
diff --git a/arch/um/os-Linux/skas/mem.c b/arch/um/os-Linux/skas/mem.c
index e771398be5f3fe97cf54fee51e5408d63ccaeea8..c0afff7af4bd0f8151c2f2210ae8a89d9768d4bd 100644
--- a/arch/um/os-Linux/skas/mem.c
+++ b/arch/um/os-Linux/skas/mem.c
@@ -9,7 +9,6 @@
 #include <string.h>
 #include <sys/mman.h>
 #include "init.h"
-#include "kern_constants.h"
 #include "as-layout.h"
 #include "mm_id.h"
 #include "os.h"
@@ -17,7 +16,6 @@
 #include "ptrace_user.h"
 #include "registers.h"
 #include "skas.h"
-#include "user.h"
 #include "sysdep/ptrace.h"
 #include "sysdep/stub.h"
 
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index dee0e8cf8ad0c32e2a0f6315751fd96f3a0caf5a..2a72bfcd7aba3a4cec88a9c56d43425be6239b75 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -14,7 +14,6 @@
 #include <asm/unistd.h>
 #include "as-layout.h"
 #include "chan_user.h"
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "mem.h"
 #include "os.h"
@@ -24,7 +23,6 @@
 #include "registers.h"
 #include "skas.h"
 #include "skas_ptrace.h"
-#include "user.h"
 #include "sysdep/stub.h"
 
 int is_skas_winch(int pid, int fd, void *data)
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 02ee9adff54ad2a8913e94aee9bf927723194e58..b6986809b8e0ed21760da2eda818457f74d108b3 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -18,7 +18,6 @@
 #include <sys/wait.h>
 #include <asm/unistd.h>
 #include "init.h"
-#include "kern_constants.h"
 #include "os.h"
 #include "mem_user.h"
 #include "ptrace_user.h"
diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-i386/registers.c
index 229f7a53d8dad95279798105eaa28fc81daa53e9..913d811b38dbcd249e91e633d5e24a3ca2d66edc 100644
--- a/arch/um/os-Linux/sys-i386/registers.c
+++ b/arch/um/os-Linux/sys-i386/registers.c
@@ -7,9 +7,7 @@
 #include <errno.h>
 #include <sys/ptrace.h>
 #include <sys/user.h>
-#include "kern_constants.h"
 #include "longjmp.h"
-#include "user.h"
 #include "sysdep/ptrace_user.h"
 
 int save_fp_registers(int pid, unsigned long *fp_regs)
diff --git a/arch/um/os-Linux/sys-i386/task_size.c b/arch/um/os-Linux/sys-i386/task_size.c
index be04c1e183bfec5d3ccafb26bc4456c5f901c9d6..4ce09b8e99c9018389fd1193e846e3ab9718ed45 100644
--- a/arch/um/os-Linux/sys-i386/task_size.c
+++ b/arch/um/os-Linux/sys-i386/task_size.c
@@ -3,7 +3,6 @@
 #include <signal.h>
 #include <sys/mman.h>
 #include "longjmp.h"
-#include "kern_constants.h"
 
 static jmp_buf buf;
 
diff --git a/arch/um/os-Linux/sys-i386/tls.c b/arch/um/os-Linux/sys-i386/tls.c
index 32ed41ec1a3d8790d97471f7cae706168f68bb20..281e83ecce3d7ca8c2408250f8735124d4224658 100644
--- a/arch/um/os-Linux/sys-i386/tls.c
+++ b/arch/um/os-Linux/sys-i386/tls.c
@@ -5,7 +5,6 @@
 #include <unistd.h>
 
 #include "sysdep/tls.h"
-#include "user.h"
 
 /* Checks whether host supports TLS, and sets *tls_min according to the value
  * valid on the host.
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c
index 594d97ad02b3408b8b351a3b4263f82cb88461ad..0594d550c0340dfbce6d756abec0b436df67cd4a 100644
--- a/arch/um/os-Linux/sys-x86_64/registers.c
+++ b/arch/um/os-Linux/sys-x86_64/registers.c
@@ -7,9 +7,7 @@
 #include <sys/ptrace.h>
 #define __FRAME_OFFSETS
 #include <asm/ptrace.h>
-#include "kern_constants.h"
 #include "longjmp.h"
-#include "user.h"
 
 int save_fp_registers(int pid, unsigned long *fp_regs)
 {
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 6e3359d6a8394c0d2f811a28a24f41e673e8793c..995ca304f1c9e11f2a35a27c827f69786d1e6635 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -8,11 +8,9 @@
 #include <signal.h>
 #include <time.h>
 #include <sys/time.h>
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "os.h"
 #include "process.h"
-#include "user.h"
 
 int set_interval(void)
 {
diff --git a/arch/um/os-Linux/tty.c b/arch/um/os-Linux/tty.c
index b09ff66a77eeaf7578d84df8839e2a2961813cd3..dd12b99dcb595e4b5f4fba75e6454833ece42ece 100644
--- a/arch/um/os-Linux/tty.c
+++ b/arch/um/os-Linux/tty.c
@@ -7,10 +7,8 @@
 #include <unistd.h>
 #include <errno.h>
 #include <fcntl.h>
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "os.h"
-#include "user.h"
 
 struct grantpt_info {
 	int fd;
diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c
index a27defb81884e294ddab6dca2260a3b3cc867c58..4832eb519f8dfa9492803de9615e6d04b896faa3 100644
--- a/arch/um/os-Linux/umid.c
+++ b/arch/um/os-Linux/umid.c
@@ -13,9 +13,7 @@
 #include <unistd.h>
 #include <sys/stat.h>
 #include "init.h"
-#include "kern_constants.h"
 #include "os.h"
-#include "user.h"
 
 #define UML_DIR "~/.uml/"
 
diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c
index 5803b188767213eb1a60399c594677a661547287..9e3b43bb84c99398407a9305feeb480b3f03462c 100644
--- a/arch/um/os-Linux/util.c
+++ b/arch/um/os-Linux/util.c
@@ -13,9 +13,7 @@
 #include <wait.h>
 #include <sys/mman.h>
 #include <sys/utsname.h>
-#include "kern_constants.h"
 #include "os.h"
-#include "user.h"
 
 void stack_protections(unsigned long address)
 {
diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules
index 61107b68e05be1f6daac8b00cf9e963579c4f22c..3a7efb017a739812b86a7bbec99bd3306f1a5df3 100644
--- a/arch/um/scripts/Makefile.rules
+++ b/arch/um/scripts/Makefile.rules
@@ -8,7 +8,7 @@ USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m)  $(USER_SINGLE_OBJS))
 USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
 
 $(USER_OBJS:.o=.%): \
-	c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(basetarget).o)
+	c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) -include user.h $(CFLAGS_$(basetarget).o)
 $(USER_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
 	-Dunix -D__unix__ -D__$(SUBARCH)__ $(CF)
 
diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile
index e5e56d76dec3b448d88759241082f8bc64356b29..231bb983a121637ae95e5f3aa09a840ae76179c9 100644
--- a/arch/um/sys-i386/Makefile
+++ b/arch/um/sys-i386/Makefile
@@ -15,8 +15,8 @@ subarch-obj-$(CONFIG_MODULES) += kernel/module.o
 
 USER_OBJS := bugs.o ptrace_user.o fault.o
 
-USER_OBJS += user-offsets.s
 extra-y += user-offsets.s
+$(obj)/user-offsets.s: c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS)
 
 UNPROFILE_OBJS := stub_segv.o
 CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING)
diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c
index 2c6d0d731c12c9bdcdf0e5a2521cec52ff1e7f25..7058e1fa903b439fb657b872205bfa2095e24247 100644
--- a/arch/um/sys-i386/bugs.c
+++ b/arch/um/sys-i386/bugs.c
@@ -4,11 +4,9 @@
  */
 
 #include <signal.h>
-#include "kern_constants.h"
 #include "kern_util.h"
 #include "longjmp.h"
 #include "task.h"
-#include "user.h"
 #include "sysdep/ptrace.h"
 
 /* Set during early boot */
diff --git a/arch/um/sys-i386/shared/sysdep/stub.h b/arch/um/sys-i386/shared/sysdep/stub.h
index 977dedd9221bf44cd97a0611febb727486f823a3..cca14d4ddf528ec126502c5cb884242b6c36f464 100644
--- a/arch/um/sys-i386/shared/sysdep/stub.h
+++ b/arch/um/sys-i386/shared/sysdep/stub.h
@@ -11,7 +11,6 @@
 #include <asm/unistd.h>
 #include "as-layout.h"
 #include "stub-data.h"
-#include "kern_constants.h"
 
 extern void stub_segv_handler(int sig);
 extern void stub_clone_handler(void);
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile
index bd4d1d3ba91912005fa377980f93df6de325d125..097184660e8a60de536e9d0939ad747d420b76f8 100644
--- a/arch/um/sys-x86_64/Makefile
+++ b/arch/um/sys-x86_64/Makefile
@@ -18,8 +18,8 @@ ldt-y = ../sys-i386/ldt.o
 
 USER_OBJS := ptrace_user.o
 
-USER_OBJS += user-offsets.s
 extra-y += user-offsets.s
+$(obj)/user-offsets.s: c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS)
 
 UNPROFILE_OBJS := stub_segv.o
 CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING)
diff --git a/arch/um/sys-x86_64/shared/sysdep/stub.h b/arch/um/sys-x86_64/shared/sysdep/stub.h
index 3432aa249970c54880fbae342d5c9b1c28cc619e..922a5702c8d827be4a661a9fd075adc447847aa1 100644
--- a/arch/um/sys-x86_64/shared/sysdep/stub.h
+++ b/arch/um/sys-x86_64/shared/sysdep/stub.h
@@ -11,7 +11,6 @@
 #include <sysdep/ptrace_user.h>
 #include "as-layout.h"
 #include "stub-data.h"
-#include "kern_constants.h"
 
 extern void stub_segv_handler(int sig);
 extern void stub_clone_handler(void);