Make lots of structures const in order to make it obvious that they need
no locking.

Signed-off-by: Jeff Dike <[EMAIL PROTECTED]>

Index: linux-2.6.18-mm/arch/um/drivers/chan_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/chan_kern.c    2006-09-12 
10:43:38.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/chan_kern.c 2006-09-22 09:19:50.000000000 
-0400
@@ -110,7 +110,7 @@ static void not_configged_free(void *dat
               "UML\n");
 }
 
-static struct chan_ops not_configged_ops = {
+static const struct chan_ops not_configged_ops = {
        .init           = not_configged_init,
        .open           = not_configged_open,
        .close          = not_configged_close,
@@ -373,7 +373,7 @@ int console_write_chan(struct list_head 
 }
 
 int console_open_chan(struct line *line, struct console *co,
-                     struct chan_opts *opts)
+                     const struct chan_opts *opts)
 {
        int err;
 
@@ -494,10 +494,10 @@ int chan_config_string(struct list_head 
 
 struct chan_type {
        char *key;
-       struct chan_ops *ops;
+       const struct chan_ops *ops;
 };
 
-static struct chan_type chan_table[] = {
+static const struct chan_type chan_table[] = {
        { "fd", &fd_ops },
 
 #ifdef CONFIG_NULL_CHAN
@@ -534,10 +534,10 @@ static struct chan_type chan_table[] = {
 };
 
 static struct chan *parse_chan(struct line *line, char *str, int device,
-                              struct chan_opts *opts)
+                              const struct chan_opts *opts)
 {
-       struct chan_type *entry;
-       struct chan_ops *ops;
+       const struct chan_type *entry;
+       const struct chan_ops *ops;
        struct chan *chan;
        void *data;
        int i;
@@ -582,7 +582,7 @@ static struct chan *parse_chan(struct li
 }
 
 int parse_chan_pair(char *str, struct line *line, int device,
-                   struct chan_opts *opts)
+                   const struct chan_opts *opts)
 {
        struct list_head *chans = &line->chan_list;
        struct chan *new, *chan;
Index: linux-2.6.18-mm/arch/um/drivers/daemon.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/daemon.h       2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/daemon.h    2006-09-22 09:19:50.000000000 
-0400
@@ -18,7 +18,7 @@ struct daemon_data {
        void *dev;
 };
 
-extern struct net_user_info daemon_user_info;
+extern const struct net_user_info daemon_user_info;
 
 extern int daemon_user_write(int fd, void *buf, int len, 
                             struct daemon_data *pri);
Index: linux-2.6.18-mm/arch/um/drivers/daemon_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/daemon_kern.c  2006-06-17 
21:49:35.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/daemon_kern.c       2006-09-22 
09:19:50.000000000 -0400
@@ -57,7 +57,7 @@ static int daemon_write(int fd, struct s
                                 (struct daemon_data *) &lp->user));
 }
 
-static struct net_kern_info daemon_kern_info = {
+static const struct net_kern_info daemon_kern_info = {
        .init                   = daemon_init,
        .protocol               = eth_protocol,
        .read                   = daemon_read,
Index: linux-2.6.18-mm/arch/um/drivers/daemon_user.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/daemon_user.c  2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/daemon_user.c       2006-09-22 
09:19:50.000000000 -0400
@@ -182,7 +182,7 @@ static int daemon_set_mtu(int mtu, void 
        return(mtu);
 }
 
-struct net_user_info daemon_user_info = {
+const struct net_user_info daemon_user_info = {
        .init           = daemon_user_init,
        .open           = daemon_open,
        .close          = NULL,
Index: linux-2.6.18-mm/arch/um/drivers/fd.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/fd.c   2006-09-12 16:31:36.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/drivers/fd.c        2006-09-22 09:19:50.000000000 
-0400
@@ -20,7 +20,7 @@ struct fd_chan {
        char str[sizeof("1234567890\0")];
 };
 
-static void *fd_init(char *str, int device, struct chan_opts *opts)
+static void *fd_init(char *str, int device, const struct chan_opts *opts)
 {
        struct fd_chan *data;
        char *end;
@@ -77,7 +77,7 @@ static void fd_close(int fd, void *d)
        }
 }
 
-struct chan_ops fd_ops = {
+const struct chan_ops fd_ops = {
        .type           = "fd",
        .init           = fd_init,
        .open           = fd_open,
Index: linux-2.6.18-mm/arch/um/drivers/hostaudio_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/hostaudio_kern.c       2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/hostaudio_kern.c    2006-09-22 
09:19:50.000000000 -0400
@@ -279,7 +279,7 @@ static int hostmixer_release(struct inod
 
 /* kernel module operations */
 
-static struct file_operations hostaudio_fops = {
+static const struct file_operations hostaudio_fops = {
         .owner          = THIS_MODULE,
         .llseek         = no_llseek,
         .read           = hostaudio_read,
@@ -291,7 +291,7 @@ static struct file_operations hostaudio_
         .release        = hostaudio_release,
 };
 
-static struct file_operations hostmixer_fops = {
+static const struct file_operations hostmixer_fops = {
         .owner          = THIS_MODULE,
         .llseek         = no_llseek,
         .ioctl          = hostmixer_ioctl_mixdev,
Index: linux-2.6.18-mm/arch/um/drivers/line.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/line.c 2006-09-22 09:16:01.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/drivers/line.c      2006-09-22 09:19:50.000000000 
-0400
@@ -251,7 +251,7 @@ void line_set_termios(struct tty_struct 
        /* nothing */
 }
 
-static struct {
+static const struct {
        int  cmd;
        char *level;
        char *name;
@@ -405,7 +405,7 @@ static irqreturn_t line_write_interrupt(
 
 int line_setup_irq(int fd, int input, int output, struct line *line, void 
*data)
 {
-       struct line_driver *driver = line->driver;
+       const struct line_driver *driver = line->driver;
        int err = 0, flags = IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM;
 
        if (input)
@@ -558,7 +558,7 @@ int line_setup(struct line *lines, unsig
 }
 
 int line_config(struct line *lines, unsigned int num, char *str,
-               struct chan_opts *opts)
+               const struct chan_opts *opts)
 {
        struct line *line;
        char *new;
Index: linux-2.6.18-mm/arch/um/drivers/mcast.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/mcast.h        2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/mcast.h     2006-09-22 09:19:50.000000000 
-0400
@@ -13,7 +13,7 @@ struct mcast_data {
        void *dev;
 };
 
-extern struct net_user_info mcast_user_info;
+extern const struct net_user_info mcast_user_info;
 
 extern int mcast_user_write(int fd, void *buf, int len, 
                            struct mcast_data *pri);
Index: linux-2.6.18-mm/arch/um/drivers/mcast_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/mcast_kern.c   2006-06-17 
21:49:35.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/mcast_kern.c        2006-09-22 
09:19:50.000000000 -0400
@@ -61,7 +61,7 @@ static int mcast_write(int fd, struct sk
                                 (struct mcast_data *) &lp->user);
 }
 
-static struct net_kern_info mcast_kern_info = {
+static const struct net_kern_info mcast_kern_info = {
        .init                   = mcast_init,
        .protocol               = eth_protocol,
        .read                   = mcast_read,
Index: linux-2.6.18-mm/arch/um/drivers/mcast_user.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/mcast_user.c   2006-06-17 
21:49:35.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/mcast_user.c        2006-09-22 
09:19:50.000000000 -0400
@@ -152,7 +152,7 @@ static int mcast_set_mtu(int mtu, void *
        return(mtu);
 }
 
-struct net_user_info mcast_user_info = {
+const struct net_user_info mcast_user_info = {
        .init           = mcast_user_init,
        .open           = mcast_open,
        .close          = mcast_close,
Index: linux-2.6.18-mm/arch/um/drivers/mmapper_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/mmapper_kern.c 2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/mmapper_kern.c      2006-09-22 
09:19:50.000000000 -0400
@@ -85,7 +85,7 @@ mmapper_release(struct inode *inode, str
        return 0;
 }
 
-static struct file_operations mmapper_fops = {
+static const struct file_operations mmapper_fops = {
        .owner          = THIS_MODULE,
        .read           = mmapper_read,
        .write          = mmapper_write,
@@ -95,7 +95,7 @@ static struct file_operations mmapper_fo
        .release        = mmapper_release,
 };
 
-static struct miscdevice mmapper_dev = {
+static const struct miscdevice mmapper_dev = {
        .minor          = MISC_DYNAMIC_MINOR,
        .name           = "mmapper",
        .fops           = &mmapper_fops
Index: linux-2.6.18-mm/arch/um/drivers/null.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/null.c 2006-09-22 09:16:00.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/drivers/null.c      2006-09-22 09:19:50.000000000 
-0400
@@ -10,7 +10,7 @@
 
 static int null_chan;
 
-static void *null_init(char *str, int device, struct chan_opts *opts)
+static void *null_init(char *str, int device, const struct chan_opts *opts)
 {
        return(&null_chan);
 }
@@ -31,7 +31,7 @@ static void null_free(void *data)
 {
 }
 
-struct chan_ops null_ops = {
+const struct chan_ops null_ops = {
        .type           = "null",
        .init           = null_init,
        .open           = null_open,
Index: linux-2.6.18-mm/arch/um/drivers/pcap_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/pcap_kern.c    2006-09-12 
10:43:38.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/pcap_kern.c 2006-09-22 09:19:50.000000000 
-0400
@@ -46,7 +46,7 @@ static int pcap_write(int fd, struct sk_
        return(-EPERM);
 }
 
-static struct net_kern_info pcap_kern_info = {
+static const struct net_kern_info pcap_kern_info = {
        .init                   = pcap_init,
        .protocol               = eth_protocol,
        .read                   = pcap_read,
Index: linux-2.6.18-mm/arch/um/drivers/pcap_user.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/pcap_user.c    2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/pcap_user.c 2006-09-22 09:19:50.000000000 
-0400
@@ -120,7 +120,7 @@ int pcap_user_read(int fd, void *buffer,
        return(hdata.len);
 }
 
-struct net_user_info pcap_user_info = {
+const struct net_user_info pcap_user_info = {
        .init           = pcap_user_init,
        .open           = pcap_open,
        .close          = NULL,
Index: linux-2.6.18-mm/arch/um/drivers/port_user.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/port_user.c    2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/port_user.c 2006-09-22 09:19:50.000000000 
-0400
@@ -27,7 +27,7 @@ struct port_chan {
        char dev[sizeof("32768\0")];
 };
 
-static void *port_init(char *str, int device, struct chan_opts *opts)
+static void *port_init(char *str, int device, const struct chan_opts *opts)
 {
        struct port_chan *data;
        void *kern_data;
@@ -100,7 +100,7 @@ static void port_close(int fd, void *d)
        os_close_file(fd);
 }
 
-struct chan_ops port_ops = {
+const struct chan_ops port_ops = {
        .type           = "port",
        .init           = port_init,
        .open           = port_open,
Index: linux-2.6.18-mm/arch/um/drivers/pty.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/pty.c  2006-09-12 16:31:36.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/drivers/pty.c       2006-09-22 09:19:50.000000000 
-0400
@@ -22,7 +22,7 @@ struct pty_chan {
        char dev_name[sizeof("/dev/pts/0123456\0")];
 };
 
-static void *pty_chan_init(char *str, int device, struct chan_opts *opts)
+static void *pty_chan_init(char *str, int device, const struct chan_opts *opts)
 {
        struct pty_chan *data;
 
@@ -118,7 +118,7 @@ static int pty_open(int input, int outpu
        return(fd);
 }
 
-struct chan_ops pty_ops = {
+const struct chan_ops pty_ops = {
        .type           = "pty",
        .init           = pty_chan_init,
        .open           = pty_open,
@@ -131,7 +131,7 @@ struct chan_ops pty_ops = {
        .winch          = 0,
 };
 
-struct chan_ops pts_ops = {
+const struct chan_ops pts_ops = {
        .type           = "pts",
        .init           = pty_chan_init,
        .open           = pts_open,
Index: linux-2.6.18-mm/arch/um/drivers/random.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/random.c       2006-09-22 
09:16:00.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/random.c    2006-09-22 09:19:50.000000000 
-0400
@@ -68,7 +68,7 @@ static ssize_t rng_dev_read (struct file
        return ret;
 }
 
-static struct file_operations rng_chrdev_ops = {
+static const struct file_operations rng_chrdev_ops = {
        .owner          = THIS_MODULE,
        .open           = rng_dev_open,
        .read           = rng_dev_read,
Index: linux-2.6.18-mm/arch/um/drivers/slip.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/slip.h 2006-06-17 21:49:35.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/drivers/slip.h      2006-09-22 09:19:50.000000000 
-0400
@@ -12,7 +12,7 @@ struct slip_data {
        struct slip_proto slip;
 };
 
-extern struct net_user_info slip_user_info;
+extern const struct net_user_info slip_user_info;
 
 extern int slip_user_read(int fd, void *buf, int len, struct slip_data *pri);
 extern int slip_user_write(int fd, void *buf, int len, struct slip_data *pri);
Index: linux-2.6.18-mm/arch/um/drivers/slip_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/slip_kern.c    2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/slip_kern.c 2006-09-22 09:19:50.000000000 
-0400
@@ -60,7 +60,7 @@ static int slip_write(int fd, struct sk_
                               (struct slip_data *) &lp->user));
 }
 
-struct net_kern_info slip_kern_info = {
+const struct net_kern_info slip_kern_info = {
        .init                   = slip_init,
        .protocol               = slip_protocol,
        .read                   = slip_read,
Index: linux-2.6.18-mm/arch/um/drivers/slip_user.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/slip_user.c    2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/slip_user.c 2006-09-22 09:19:50.000000000 
-0400
@@ -241,7 +241,7 @@ static void slip_del_addr(unsigned char 
        close_addr(addr, netmask, pri->name);
 }
 
-struct net_user_info slip_user_info = {
+const struct net_user_info slip_user_info = {
        .init           = slip_user_init,
        .open           = slip_open,
        .close          = slip_close,
Index: linux-2.6.18-mm/arch/um/drivers/slirp.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/slirp.h        2006-06-17 
21:49:35.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/slirp.h     2006-09-22 09:19:50.000000000 
-0400
@@ -24,7 +24,7 @@ struct slirp_data {
        struct slip_proto slip;
 };
 
-extern struct net_user_info slirp_user_info;
+extern const struct net_user_info slirp_user_info;
 
 extern int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri);
 extern int slirp_user_write(int fd, void *buf, int len,
Index: linux-2.6.18-mm/arch/um/drivers/slirp_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/slirp_kern.c   2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/slirp_kern.c        2006-09-22 
09:19:50.000000000 -0400
@@ -64,7 +64,7 @@ static int slirp_write(int fd, struct sk
                               (struct slirp_data *) &lp->user));
 }
 
-struct net_kern_info slirp_kern_info = {
+const struct net_kern_info slirp_kern_info = {
        .init                   = slirp_init,
        .protocol               = slirp_protocol,
        .read                   = slirp_read,
Index: linux-2.6.18-mm/arch/um/drivers/slirp_user.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/slirp_user.c   2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/slirp_user.c        2006-09-22 
09:19:50.000000000 -0400
@@ -126,7 +126,7 @@ static int slirp_set_mtu(int mtu, void *
        return(mtu);
 }
 
-struct net_user_info slirp_user_info = {
+const struct net_user_info slirp_user_info = {
        .init           = slirp_user_init,
        .open           = slirp_open,
        .close          = slirp_close,
Index: linux-2.6.18-mm/arch/um/drivers/ssl.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/ssl.c  2006-09-12 10:43:38.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/drivers/ssl.c       2006-09-22 09:19:50.000000000 
-0400
@@ -22,7 +22,7 @@
 #include "irq_user.h"
 #include "mconsole_kern.h"
 
-static int ssl_version = 1;
+static const int ssl_version = 1;
 
 /* Referenced only by tty_driver below - presumably it's locked correctly
  * by the tty driver.
@@ -122,7 +122,7 @@ void ssl_hangup(struct tty_struct *tty)
 }
 #endif
 
-static struct tty_operations ssl_ops = {
+static const struct tty_operations ssl_ops = {
        .open                   = ssl_open,
        .close                  = line_close,
        .write                  = line_write,
Index: linux-2.6.18-mm/arch/um/drivers/stdio_console.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/stdio_console.c        2006-09-22 
09:16:00.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/stdio_console.c     2006-09-22 
09:19:50.000000000 -0400
@@ -109,7 +109,7 @@ static int con_open(struct tty_struct *t
 
 static int con_init_done = 0;
 
-static struct tty_operations console_ops = {
+static const struct tty_operations console_ops = {
        .open                   = con_open,
        .close                  = line_close,
        .write                  = line_write,
Index: linux-2.6.18-mm/arch/um/drivers/tty.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/tty.c  2006-09-11 10:47:49.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/drivers/tty.c       2006-09-22 09:19:50.000000000 
-0400
@@ -18,7 +18,7 @@ struct tty_chan {
        struct termios tt;
 };
 
-static void *tty_chan_init(char *str, int device, struct chan_opts *opts)
+static void *tty_chan_init(char *str, int device, const struct chan_opts *opts)
 {
        struct tty_chan *data;
 
@@ -62,7 +62,7 @@ static int tty_open(int input, int outpu
        return fd;
 }
 
-struct chan_ops tty_ops = {
+const struct chan_ops tty_ops = {
        .type           = "tty",
        .init           = tty_chan_init,
        .open           = tty_open,
Index: linux-2.6.18-mm/arch/um/drivers/xterm.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/drivers/xterm.c        2006-09-22 
09:16:01.000000000 -0400
+++ linux-2.6.18-mm/arch/um/drivers/xterm.c     2006-09-22 09:19:50.000000000 
-0400
@@ -31,7 +31,7 @@ struct xterm_chan {
 };
 
 /* Not static because it's called directly by the tt mode gdb code */
-void *xterm_init(char *str, int device, struct chan_opts *opts)
+void *xterm_init(char *str, int device, const struct chan_opts *opts)
 {
        struct xterm_chan *data;
 
@@ -194,7 +194,7 @@ static void xterm_free(void *d)
        free(d);
 }
 
-struct chan_ops xterm_ops = {
+const struct chan_ops xterm_ops = {
        .type           = "xterm",
        .init           = xterm_init,
        .open           = xterm_open,
Index: linux-2.6.18-mm/arch/um/include/chan_kern.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/include/chan_kern.h    2006-06-17 
21:49:35.000000000 -0400
+++ linux-2.6.18-mm/arch/um/include/chan_kern.h 2006-09-22 09:19:50.000000000 
-0400
@@ -23,21 +23,21 @@ struct chan {
        unsigned int opened:1;
        unsigned int enabled:1;
        int fd;
-       struct chan_ops *ops;
+       const struct chan_ops *ops;
        void *data;
 };
 
 extern void chan_interrupt(struct list_head *chans, struct work_struct *task,
                           struct tty_struct *tty, int irq);
 extern int parse_chan_pair(char *str, struct line *line, int device,
-                          struct chan_opts *opts);
+                          const struct chan_opts *opts);
 extern int open_chan(struct list_head *chans);
 extern int write_chan(struct list_head *chans, const char *buf, int len,
                             int write_irq);
 extern int console_write_chan(struct list_head *chans, const char *buf, 
                              int len);
 extern int console_open_chan(struct line *line, struct console *co,
-                            struct chan_opts *opts);
+                            const struct chan_opts *opts);
 extern void deactivate_chan(struct list_head *chans, int irq);
 extern void reactivate_chan(struct list_head *chans, int irq);
 extern void chan_enable_winch(struct list_head *chans, struct tty_struct *tty);
Index: linux-2.6.18-mm/arch/um/include/chan_user.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/include/chan_user.h    2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/include/chan_user.h 2006-09-22 09:19:50.000000000 
-0400
@@ -20,7 +20,7 @@ enum chan_init_pri { INIT_STATIC, INIT_A
 
 struct chan_ops {
        char *type;
-       void *(*init)(char *, int, struct chan_opts *);
+       void *(*init)(char *, int, const struct chan_opts *);
        int (*open)(int, int, int, void *, char **);
        void (*close)(int, void *);
        int (*read)(int, char *, void *);
@@ -31,8 +31,8 @@ struct chan_ops {
        int winch;
 };
 
-extern struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, tty_ops,
-       xterm_ops;
+extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops,
+       tty_ops, xterm_ops;
 
 extern void generic_close(int fd, void *unused);
 extern int generic_read(int fd, char *c_out, void *unused);
Index: linux-2.6.18-mm/arch/um/include/kern_util.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/include/kern_util.h    2006-09-22 
09:16:06.000000000 -0400
+++ linux-2.6.18-mm/arch/um/include/kern_util.h 2006-09-22 09:19:50.000000000 
-0400
@@ -21,7 +21,7 @@ struct kern_handlers {
        kern_hndl timer_handler;
 };
 
-extern struct kern_handlers handlinfo_kern;
+extern const struct kern_handlers handlinfo_kern;
 
 extern int ncpus;
 extern char *linux_prog;
Index: linux-2.6.18-mm/arch/um/include/line.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/include/line.h 2006-09-12 10:43:38.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/include/line.h      2006-09-22 09:19:50.000000000 
-0400
@@ -52,7 +52,7 @@ struct line {
 
        int sigio;
        struct work_struct task;
-       struct line_driver *driver;
+       const struct line_driver *driver;
        int have_irq;
 };
 
@@ -98,7 +98,7 @@ extern void lines_init(struct line *line
 extern void close_lines(struct line *lines, int nlines);
 
 extern int line_config(struct line *lines, unsigned int sizeof_lines,
-                      char *str, struct chan_opts *opts);
+                      char *str, const struct chan_opts *opts);
 extern int line_id(char **str, int *start_out, int *end_out);
 extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n);
 extern int line_get_config(char *dev, struct line *lines,
Index: linux-2.6.18-mm/arch/um/include/net_kern.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/include/net_kern.h     2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/include/net_kern.h  2006-09-22 09:19:50.000000000 
-0400
@@ -54,8 +54,8 @@ struct transport {
        struct list_head list;
        char *name;
        int (*setup)(char *, char **, void *);
-       struct net_user_info *user;
-       struct net_kern_info *kern;
+       const struct net_user_info *user;
+       const struct net_kern_info *kern;
        int private_size;
        int setup_size;
 };
Index: linux-2.6.18-mm/arch/um/kernel/trap.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/kernel/trap.c  2006-09-22 09:16:06.000000000 
-0400
+++ linux-2.6.18-mm/arch/um/kernel/trap.c       2006-09-22 09:19:50.000000000 
-0400
@@ -139,7 +139,7 @@ void segv_handler(int sig, union uml_pt_
        segv(*fi, UPT_IP(regs), UPT_IS_USER(regs), regs);
 }
 
-struct kern_handlers handlinfo_kern = {
+const struct kern_handlers handlinfo_kern = {
        .relay_signal = relay_signal,
        .winch = winch,
        .bus_handler = relay_signal,
Index: linux-2.6.18-mm/arch/um/kernel/um_arch.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/kernel/um_arch.c       2006-09-22 
09:16:04.000000000 -0400
+++ linux-2.6.18-mm/arch/um/kernel/um_arch.c    2006-09-22 09:19:50.000000000 
-0400
@@ -105,7 +105,7 @@ static void c_stop(struct seq_file *m, v
 {
 }
 
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
        .start  = c_start,
        .next   = c_next,
        .stop   = c_stop,
Index: linux-2.6.18-mm/arch/um/os-Linux/drivers/etap.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/os-Linux/drivers/etap.h        2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/os-Linux/drivers/etap.h     2006-09-22 
09:19:50.000000000 -0400
@@ -13,7 +13,7 @@ struct ethertap_data {
        void *dev;
 };
 
-extern struct net_user_info ethertap_user_info;
+extern const struct net_user_info ethertap_user_info;
 
 /*
  * Overrides for Emacs so that we follow Linus's tabbing style.
Index: linux-2.6.18-mm/arch/um/os-Linux/drivers/ethertap_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/os-Linux/drivers/ethertap_kern.c       
2006-09-12 16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/os-Linux/drivers/ethertap_kern.c    2006-09-22 
09:19:50.000000000 -0400
@@ -65,7 +65,7 @@ static int etap_write(int fd, struct sk_
        return(net_send(fd, (*skb)->data, (*skb)->len));
 }
 
-struct net_kern_info ethertap_kern_info = {
+const struct net_kern_info ethertap_kern_info = {
        .init                   = etap_init,
        .protocol               = eth_protocol,
        .read                   = etap_read,
Index: linux-2.6.18-mm/arch/um/os-Linux/drivers/ethertap_user.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/os-Linux/drivers/ethertap_user.c       
2006-09-22 09:16:01.000000000 -0400
+++ linux-2.6.18-mm/arch/um/os-Linux/drivers/ethertap_user.c    2006-09-22 
09:19:50.000000000 -0400
@@ -216,7 +216,7 @@ static void etap_del_addr(unsigned char 
        etap_close_addr(addr, netmask, &pri->control_fd);
 }
 
-struct net_user_info ethertap_user_info = {
+const struct net_user_info ethertap_user_info = {
        .init           = etap_user_init,
        .open           = etap_open,
        .close          = etap_close,
Index: linux-2.6.18-mm/arch/um/os-Linux/drivers/tuntap.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/os-Linux/drivers/tuntap.h      2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/os-Linux/drivers/tuntap.h   2006-09-22 
09:19:50.000000000 -0400
@@ -16,7 +16,7 @@ struct tuntap_data {
        void *dev;
 };
 
-extern struct net_user_info tuntap_user_info;
+extern const struct net_user_info tuntap_user_info;
 
 #endif
 
Index: linux-2.6.18-mm/arch/um/os-Linux/drivers/tuntap_kern.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/os-Linux/drivers/tuntap_kern.c 2006-09-12 
16:31:36.000000000 -0400
+++ linux-2.6.18-mm/arch/um/os-Linux/drivers/tuntap_kern.c      2006-09-22 
09:19:50.000000000 -0400
@@ -53,7 +53,7 @@ static int tuntap_write(int fd, struct s
        return(net_write(fd, (*skb)->data, (*skb)->len));
 }
 
-struct net_kern_info tuntap_kern_info = {
+const struct net_kern_info tuntap_kern_info = {
        .init                   = tuntap_init,
        .protocol               = eth_protocol,
        .read                   = tuntap_read,
Index: linux-2.6.18-mm/arch/um/os-Linux/drivers/tuntap_user.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/os-Linux/drivers/tuntap_user.c 2006-09-22 
09:16:01.000000000 -0400
+++ linux-2.6.18-mm/arch/um/os-Linux/drivers/tuntap_user.c      2006-09-22 
09:19:50.000000000 -0400
@@ -205,7 +205,7 @@ static int tuntap_set_mtu(int mtu, void 
        return(mtu);
 }
 
-struct net_user_info tuntap_user_info = {
+const struct net_user_info tuntap_user_info = {
        .init           = tuntap_user_init,
        .open           = tuntap_open,
        .close          = tuntap_close,


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