The HPCP bit is set by bioses for on-board sata ports either because they think sata is hotplug capable in general or to allow Windows to display a "device eject" icon on ports which are routed to an external connector bracket. However in Redhat Bugzilla #1310682, users report that with kernel 4.4, where this bit test first appeared, a lot of partitions on sata drives are now mounted automatically. This patch should fix redhat and a lot of other distros which unconditionally automount all devices which have the "removable" bit set. Signed-off-by: Manuel Lauss <manuel.lauss@xxxxxxxxx> --- drivers/ata/libahci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 4029679..e029e3c 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -1164,8 +1164,7 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap, /* mark esata ports */ tmp = readl(port_mmio + PORT_CMD); - if ((tmp & PORT_CMD_HPCP) || - ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS))) + if ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)) ap->pflags |= ATA_PFLAG_EXTERNAL; } -- 2.7.2 -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
