um: Get rid of open coded NR_SYSCALLS

We can use __NR_syscall_max.

Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c
index 64a8fe589d6fd991e12526aa48a2055b68a54506..1683b8efdfdafe916c2768457e68f2dd5fd5b2d0 100644 (file)
--- a/arch/um/kernel/skas/syscall.c
+++ b/arch/um/kernel/skas/syscall.c
@@ -10,9 +10,6 @@
 #include <sysdep/syscalls.h>
 #include <os.h>
 
-extern int syscall_table_size;
-#define NR_SYSCALLS (syscall_table_size / sizeof(void *))
-
 void handle_syscall(struct uml_pt_regs *r)
 {
        struct pt_regs *regs = container_of(r, struct pt_regs, regs);
@@ -26,9 +23,10 @@ void handle_syscall(struct uml_pt_regs *r)
 
        syscall = get_syscall(r);
 
-       if ((syscall >= NR_SYSCALLS) || (syscall < 0))
+       if ((syscall > __NR_syscall_max) || syscall < 0)
                result = -ENOSYS;
-       else result = EXECUTE_SYSCALL(syscall, regs);
+       else
+               result = EXECUTE_SYSCALL(syscall, regs);
 
 out:
        PT_REGS_SET_SYSCALL_RETURN(regs, result);