3 files changed, 19 insertions, 1 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index b8bea100a160..b34390347c16 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -2868,6 +2868,21 @@ static bool ahci_broken_suspend(struct pci_dev *pdev)
                         },
                         .driver_data = "F.23",  /* cutoff BIOS version */
                 },
+                /*
+                 * Acer eMachines G725 has the same problem.  BIOS
+                 * V1.03 is known to be broken.  V3.04 is known to
+                 * work.  Inbetween, there are V1.06, V2.06 and V3.03
+                 * that we don't have much idea about.  For now,
+                 * blacklist anything older than V3.04.
+                 */
+                {
+                        .ident = "G725",
+                        .matches = {
+                                DMI_MATCH(DMI_SYS_VENDOR, "eMachines"),
+                                DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"),
+                        },
+                        .driver_data = "V3.04", /* cutoff BIOS version */
+                },
                 { }     /* terminate list */
         };
         const struct dmi_system_id *dmi = dmi_first_match(sysids);
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index f4ea5a8c325b..d096fbcbc771 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2875,7 +2875,7 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
          * write indication (used for PIO/DMA setup), result TF is
          * copied back and we don't whine too much about its failure.
          */
-        tf->flags = ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+        tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
         if (scmd->sc_data_direction == DMA_TO_DEVICE)
                 tf->flags |= ATA_TFLAG_WRITE;
 
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 741065c9da67..730ef3c384ca 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -893,6 +893,9 @@ static void ata_pio_sector(struct ata_queued_cmd *qc)
                                        do_write);
         }
 
+        if (!do_write)
+                flush_dcache_page(page);
+
         qc->curbytes += qc->sect_size;
         qc->cursg_ofs += qc->sect_size;