diff options
Diffstat (limited to 'drivers/ata/ahci.h')
| -rw-r--r-- | drivers/ata/ahci.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h index 8e895ae45c86..2c10c8f440d1 100644 --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -246,6 +246,7 @@ enum { AHCI_HFLAG_NO_SXS = BIT(26), /* SXS not supported */ AHCI_HFLAG_43BIT_ONLY = BIT(27), /* 43bit DMA addr limit */ AHCI_HFLAG_INTEL_PCS_QUIRK = BIT(28), /* apply Intel PCS quirk */ + AHCI_HFLAG_ATAPI_DMA_QUIRK = BIT(29), /* force ATAPI to use DMA */ /* ap->flags bits */ @@ -386,8 +387,12 @@ struct ahci_host_priv { static inline bool ahci_ignore_port(struct ahci_host_priv *hpriv, unsigned int portid) { - return portid >= hpriv->nports || - !(hpriv->mask_port_map & (1 << portid)); + if (portid >= hpriv->nports) + return true; + /* mask_port_map not set means that all ports are available */ + if (!hpriv->mask_port_map) + return false; + return !(hpriv->mask_port_map & (1 << portid)); } extern int ahci_ignore_sss; |