uml: throw out CHOOSE_MODE

The next stage after removing code which depends on CONFIG_MODE_TT is removing
the CHOOSE_MODE abstraction, which provided both compile-time and run-time
branching to either tt-mode or skas-mode code.

This patch removes choose-mode.h and all inclusions of it, and replaces all
CHOOSE_MODE invocations with the skas branch.  This leaves a number of trivial
functions which will be dealt with in a later patch.

There are some changes in the uaccess and tls support which go somewhat beyond
this and eliminate some of the now-redundant functions.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 2 insertions, 5 deletions

diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c
index d29e56d8ced4..74f22d27327d 100644
--- a/arch/um/drivers/chan_user.c
+++ b/arch/um/drivers/chan_user.c
@@ -264,8 +264,7 @@ void register_winch(int fd, struct tty_struct *tty)
                 return;
 
         pid = tcgetpgrp(fd);
-        if (!CHOOSE_MODE_PROC(is_tracer_winch, is_skas_winch, pid, fd, tty) &&
-            (pid == -1)) {
+        if (!is_skas_winch(pid, fd, tty) && (pid == -1)) {
                 thread = winch_tramp(fd, tty, &thread_fd, &stack);
                 if (thread < 0)
                         return;
diff --git a/arch/um/drivers/harddog_user.c b/arch/um/drivers/harddog_user.c
index 1171790f742c..b050e267befe 100644
--- a/arch/um/drivers/harddog_user.c
+++ b/arch/um/drivers/harddog_user.c
@@ -9,7 +9,6 @@
 #include "user.h"
 #include "mconsole.h"
 #include "os.h"
-#include "choose-mode.h"
 #include "mode.h"
 
 struct dog_data {
@@ -64,7 +63,7 @@ int start_watchdog(int *in_fd_ret, int *out_fd_ret, char *sock)
         }
         else {
                 /* XXX The os_getpid() is not SMP correct */
-                sprintf(pid_buf, "%d", CHOOSE_MODE(tracing_pid, os_getpid()));
+                sprintf(pid_buf, "%d", os_getpid());
                 args = pid_args;
         }
 
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 4d563b9dde56..3591c3806670 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -33,7 +33,6 @@
 #include "init.h"
 #include "os.h"
 #include "irq_kern.h"
-#include "choose-mode.h"
 
 static int do_unlink_socket(struct notifier_block *notifier,
                             unsigned long what, void *data)