[SeaBIOS] [PATCH] Remove CanPreempt check from pmm code.

[Kevin O'Connor]

The CanPreempt check in pmm is a leftover from when memory could be
allocated from the 9-segment.  It is no longer needed.

Signed-off-by: Kevin O'Connor 
---
 src/pmm.c  |   10 ----------
 src/util.h |    1 -
 2 files changed, 0 insertions(+), 11 deletions(-)

diff --git a/src/pmm.c b/src/pmm.c
index 4cee401..5d43645 100644
--- a/src/pmm.c
+++ b/src/pmm.c
@@ -537,13 +537,6 @@ handle_pmm(u16 *args)
     u16 arg1 = args[0];
     dprintf(DEBUG_HDL_pmm, "pmm call arg1=%x\n", arg1);

-    int oldpreempt;
-    if (CONFIG_THREAD_OPTIONROMS) {
-        // Not a preemption event - don't wait in wait_preempt()
-        oldpreempt = CanPreempt;
-        CanPreempt = 0;
-    }
-
     u32 ret;
     switch (arg1) {
     case 0x00: ret = handle_pmm00(args); break;
@@ -552,9 +545,6 @@ handle_pmm(u16 *args)
     default:   ret = handle_pmmXX(args); break;
     }

-    if (CONFIG_THREAD_OPTIONROMS)
-        CanPreempt = oldpreempt;
-
     return ret;
 }

diff --git a/src/util.h b/src/util.h
index 0d41785..e5d494e 100644
--- a/src/util.h
+++ b/src/util.h
@@ -225,7 +225,6 @@ void wait_threads(void);
 struct mutex_s { u32 isLocked; };
 void mutex_lock(struct mutex_s *mutex);
 void mutex_unlock(struct mutex_s *mutex);
-extern int CanPreempt;
 void start_preempt(void);
 void finish_preempt(void);
 int wait_preempt(void);