kernel: do not pull in atom.s from libc for arm kernels

- provide our own copy of cas() in l.s
- replace use of libc ainc()/adec() with portable incref()/decref()

1 files changed, 0 insertions, 26 deletions

diff --git a/sys/src/9/kw/arch.c b/sys/src/9/kw/arch.c
index fc1734b63..d59c5794c 100644
--- a/sys/src/9/kw/arch.c
+++ b/sys/src/9/kw/arch.c
@@ -172,32 +172,6 @@ userureg(Ureg* ureg)
 	return (ureg->psr & PsrMask) == PsrMusr;
 }
 
-/*
- * atomic ops
- * make sure that we don't drag in the C library versions
- */
-int
-ainc(int *p)
-{
-	int s, v;
-
-	s = splhi();
-	v = ++*p;
-	splx(s);
-	return v;
-}
-
-int
-adec(int *p)
-{
-	int s, v;
-
-	s = splhi();
-	v = --*p;
-	splx(s);
-	return v;
-}
-
 int
 cas32(void* addr, u32int old, u32int new)
 {