From d01ab2e026ae2b9dae9cb4b69f7e6b6528c41828 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Sat, 10 Jun 2000 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 2000-06-10

---
 pc/sd53c8xx.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/pc/sd53c8xx.c b/pc/sd53c8xx.c
index 06b5fdbed30d67f3b188449e52f9939c373a9395..740abd5838e0f5b981c587e52acf199364db3d48 100644
--- a/pc/sd53c8xx.c
+++ b/pc/sd53c8xx.c
@@ -1907,17 +1907,23 @@ na_fixup(Controller *c, ulong pa_reg,
 static SDev*
 sympnp(void)
 {
-	int ba;
+	char *cp;
 	Pcidev *p;
 	Variant *v;
+	int ba, nctlr;
 	void *scriptma;
 	Controller *ctlr;
 	SDev *sdev, *head, *tail;
 	ulong regpa, *script, scriptpa;
 
+	if(cp = getconf("*maxsd53c8xx"))
+		nctlr = strtoul(cp, 0, 0);
+	else
+		nctlr = 32;
+
 	p = nil;
 	head = tail = nil;
-	while(p = pcimatch(p, NCR_VID, 0)){
+	while((p = pcimatch(p, NCR_VID, 0)) != nil && nctlr > 0){
 		for(v = variant; v < &variant[nelem(variant)]; v++){
 			if(p->did == v->did && p->rid <= v->maxrid)
 				break;
@@ -2011,6 +2017,8 @@ buggery:
 		else
 			head = sdev;
 		tail = sdev;
+
+		nctlr--;
 	}
 
 	return head;