[PATCH] uml: tidy longjmp macro

The UML_SETJMP macro was requiring its users to pass in a argument which it
could supply itself, since it wasn't used outside that invocation of the
macro.

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

1 files changed, 6 insertions, 10 deletions

diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index bf35572d9cfa..7baf90fda58b 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -435,7 +435,6 @@ void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
 {
         unsigned long flags;
         jmp_buf switch_buf, fork_buf;
-        int enable;
 
         *switch_buf_ptr = &switch_buf;
         *fork_buf_ptr = &fork_buf;
@@ -450,7 +449,7 @@ void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
          */
         flags = get_signals();
         block_signals();
-        if(UML_SETJMP(&fork_buf, enable) == 0)
+        if(UML_SETJMP(&fork_buf) == 0)
                 new_thread_proc(stack, handler);
 
         remove_sigstack();
@@ -467,21 +466,19 @@ void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
 void thread_wait(void *sw, void *fb)
 {
         jmp_buf buf, **switch_buf = sw, *fork_buf;
-        int enable;
 
         *switch_buf = &buf;
         fork_buf = fb;
-        if(UML_SETJMP(&buf, enable) == 0)
+        if(UML_SETJMP(&buf) == 0)
                 siglongjmp(*fork_buf, INIT_JMP_REMOVE_SIGSTACK);
 }
 
 void switch_threads(void *me, void *next)
 {
         jmp_buf my_buf, **me_ptr = me, *next_buf = next;
-        int enable;
 
         *me_ptr = &my_buf;
-        if(UML_SETJMP(&my_buf, enable) == 0)
+        if(UML_SETJMP(&my_buf) == 0)
                 UML_LONGJMP(next_buf, 1);
 }
 
@@ -495,14 +492,14 @@ static jmp_buf *cb_back;
 int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr)
 {
         jmp_buf **switch_buf = switch_buf_ptr;
-        int n, enable;
+        int n;
 
         set_handler(SIGWINCH, (__sighandler_t) sig_handler,
                     SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGALRM,
                     SIGVTALRM, -1);
 
         *fork_buf_ptr = &initial_jmpbuf;
-        n = UML_SETJMP(&initial_jmpbuf, enable);
+        n = UML_SETJMP(&initial_jmpbuf);
         switch(n){
         case INIT_JMP_NEW_THREAD:
                 new_thread_proc((void *) stack, new_thread_handler);
@@ -529,14 +526,13 @@ int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr)
 void initial_thread_cb_skas(void (*proc)(void *), void *arg)
 {
         jmp_buf here;
-        int enable;
 
         cb_proc = proc;
         cb_arg = arg;
         cb_back = &here;
 
         block_signals();
-        if(UML_SETJMP(&here, enable) == 0)
+        if(UML_SETJMP(&here) == 0)
                 UML_LONGJMP(&initial_jmpbuf, INIT_JMP_CALLBACK);
         unblock_signals();