summaryrefslogtreecommitdiff
path: root/drivers/ata
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/pata_legacy.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 7d59ffbe6f0a..c3e6592712c4 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -71,6 +71,10 @@ module_param(probe_all, int, 0);
MODULE_PARM_DESC(probe_all,
"Set to probe tertiary+ ISA port ranges even if PCI");
+static int probe_mask = ~0;
+module_param(probe_mask, int, 0);
+MODULE_PARM_DESC(probe_mask, "Probe mask for legacy ISA PATA ports");
+
static int autospeed;
module_param(autospeed, int, 0);
MODULE_PARM_DESC(autospeed, "Chip present that snoops speed changes");
@@ -199,6 +203,8 @@ static int legacy_probe_add(unsigned long port, unsigned int irq,
free = lp;
/* Matching port, or the correct slot for ordering */
if (lp->port == port || legacy_port[i] == port) {
+ if (!(probe_mask & 1 << i))
+ return -1;
free = lp;
break;
}