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archacpi: implement amldelay(), remove unused variable in setuplink()

--- a/sys/src/9/pc/archacpi.c

+++ b/sys/src/9/pc/archacpi.c

@@ -365,7 +365,7 @@

 setuplink(void *link, int *pflags)

 {

 	uchar im, pm[32], cm[32], *c;

-	int gsi, gsi2, i, n;

+	int gsi, gsi2, i;

 	void *r;

 	if(amltag(link) != 'N')

@@ -838,4 +838,10 @@

 void

 amlfree(void *p){

 	free(p);

+}

+

+void

+amldelay(int us)

+{

+	microdelay(us);

 }

-- 

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