[PATCH] uml: mostly const a structure

The chan_opts structure is mostly const, and needs no locking.  Comment the
lack of locking on the one field that can change.

Make all the other fields const.  It turned out that console_open_chan didn't
use its chan_opts argument, so that is deleted from the function and its
callers.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index bce9b3427..7b8baf1 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -354,8 +354,7 @@
 	return ret;
 }
 
-int console_open_chan(struct line *line, struct console *co,
-		      const struct chan_opts *opts)
+int console_open_chan(struct line *line, struct console *co)
 {
 	int err;
 
@@ -363,7 +362,7 @@
 	if(err)
 		return err;
 
-	printk("Console initialized on /dev/%s%d\n",co->name,co->index);
+	printk("Console initialized on /dev/%s%d\n", co->name, co->index);
 	return 0;
 }
 
diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c
index fe400ac..475de52 100644
--- a/arch/um/drivers/ssl.c
+++ b/arch/um/drivers/ssl.c
@@ -38,6 +38,7 @@
 	       dev_name);
 }
 
+/* Almost const, except that xterm_title may be changed in an initcall */
 static struct chan_opts opts = {
 	.announce 	= ssl_announce,
 	.xterm_title	= "Serial Line #%d",
@@ -171,7 +172,7 @@
 {
 	struct line *line = &serial_lines[co->index];
 
-	return console_open_chan(line, co, &opts);
+	return console_open_chan(line, co);
 }
 
 static struct console ssl_cons = {
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index 0b1bca4..a83c42c 100644
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -42,6 +42,7 @@
 	       dev_name);
 }
 
+/* Almost const, except that xterm_title may be changed in an initcall */
 static struct chan_opts opts = {
 	.announce 	= stdio_announce,
 	.xterm_title	= "Virtual Console #%d",
@@ -144,7 +145,7 @@
 {
 	struct line *line = &vts[co->index];
 
-	return console_open_chan(line, co, &opts);
+	return console_open_chan(line, co);
 }
 
 static struct console stdiocons = {