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sdnvme: remove unused mptr argument to qcmd()

--- a/sys/src/9/port/sdnvme.c

+++ b/sys/src/9/port/sdnvme.c

@@ -93,7 +93,7 @@

 };

 static u32int*

-qcmd(WS *ws, Ctlr *ctlr, int adm, u32int opc, u32int nsid, void *mptr, void *data, ulong len)

+qcmd(WS *ws, Ctlr *ctlr, int adm, u32int opc, u32int nsid, void *data, ulong len)

 {

 	u32int cid, *e;

 	u64int pa;

@@ -129,14 +129,8 @@

 	e[1] = nsid;

 	e[2] = 0;

 	e[3] = 0;

-	if(mptr != nil){

-		pa = PCIWADDR(mptr);

-		e[4] = pa;

-		e[5] = pa>>32;

-	} else {

-		e[4] = 0;

-		e[5] = 0;

-	}

+	e[4] = 0;

+	e[5] = 0;

 	if(len > 0){

 		dmaflush(1, data, len);

 		pa = PCIWADDR(data);

@@ -264,7 +258,7 @@

 		m = (2*ctlr->mps - ((uintptr)p & ctlr->mps-1)) / s;

 		if((n = count) > m)

 			n = m;

-		e = qcmd(&ws, ctlr, 0, write ? 0x01 : 0x02, nsid, nil, p, n*s);

+		e = qcmd(&ws, ctlr, 0, write ? 0x01 : 0x02, nsid, p, n*s);

 		e[10] = lba;

 		e[11] = lba>>32;

 		e[12] = n-1;

@@ -322,7 +316,7 @@

 	if((info = mallocalign(0x1000, ctlr->mps, 0, 0)) == nil)

 		return 0;

-	e = qcmd(&ws, ctlr, 1, 0x06, ctlr->nsid[u->subno], nil, info, 0x1000);

+	e = qcmd(&ws, ctlr, 1, 0x06, ctlr->nsid[u->subno], info, 0x1000);

 	e[10] = 0; // identify namespace

 	if(wcmd(&ws, e) != 0){

 		free(info);

@@ -414,7 +408,7 @@

 	/* CQID1: shared completion queue */

 	cq = &ctlr->cq[1];

 	cqalloc(ctlr, cq, lgsize);

-	e = qcmd(&ws, ctlr, 1, 0x05, 0, nil, cq->base, 1<<lgsize);

+	e = qcmd(&ws, ctlr, 1, 0x05, 0, cq->base, 1<<lgsize);

 	e[10] = (cq - ctlr->cq) | cq->mask<<16;

 	e[11] = 3; /* IEN | PC */

 	checkstatus(wcmd(&ws, e), "create completion queue");

@@ -425,7 +419,7 @@

 	for(i=1; i<=conf.nmach; i++){

 		sq = &ctlr->sq[i];

 		sqalloc(ctlr, sq, 12);

-		e = qcmd(&ws, ctlr, 1, 0x01, 0, nil, sq->base, 0x1000);

+		e = qcmd(&ws, ctlr, 1, 0x01, 0, sq->base, 0x1000);

 		e[10] = i | sq->mask<<16;

 		e[11] = (cq - ctlr->cq)<<16 | 1;	/* CQID<<16 | PC */

 		st = wcmd(&ws, e);

@@ -460,12 +454,12 @@

 		if((ctlr->nsid = mallocalign(0x1000, ctlr->mps, 0, 0)) == nil)

 			error(Enomem);

-	e = qcmd(&ws, ctlr, 1, 0x06, 0, nil, ctlr->ident, 0x1000);

+	e = qcmd(&ws, ctlr, 1, 0x06, 0, ctlr->ident, 0x1000);

 	e[10] = 1; // identify controller

 	checkstatus(wcmd(&ws, e), "identify controller");

 	dmaflush(0, ctlr->ident, 0x1000);

-	e = qcmd(&ws, ctlr, 1, 0x06, 0, nil, ctlr->nsid, 0x1000);

+	e = qcmd(&ws, ctlr, 1, 0x06, 0, ctlr->nsid, 0x1000);

 	e[10] = 2; // namespace list 

 	if(wcmd(&ws, e) == 0) {

 		dmaflush(0, ctlr->nsid, 0x1000);