Re: [git patches] libata (and devres) fixes

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Hi.
This update gives a new warning:

libata version 2.20 loaded.
ata_piix 0000:00:1f.1: version 2.10ac1
ata1: PATA max UDMA/100 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x000118c0 irq 14
ata2: PATA max UDMA/100 cmd 0x00010170 ctl 0x00010376 bmdma 0x000118c8 irq 15
scsi0 : ata_piix
ata1.00: ATA-6: TOSHIBA MK8025GAS, KA024A, max UDMA/100
ata1.00: 156301488 sectors, multi 16: LBA
ata1.01: ATAPI, max MWDMA2
ata1.00: configured for UDMA/33
ata1.01: configured for MWDMA2
scsi1 : ata_piix
ata2: port disabled. ignoring.
ata2: reset failed, giving up    <--- THIS IS NEW.

However, I think it's just bogus as there is ata2 is disabled on this laptop.

Regards,
Fabio





On 3/9/07, Jeff Garzik <jeff@xxxxxxxxxx> wrote:

Please pull from 'upstream-linus' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream-linus

to receive the following updates:

 drivers/ata/ata_piix.c    |   11 +++--------
 drivers/ata/libata-core.c |   19 ++++++++++++-------
 drivers/ata/sata_nv.c     |    8 +++++++-
 drivers/base/core.c       |    7 +++++++
 4 files changed, 29 insertions(+), 16 deletions(-)

Alan Cox (1):
      ata_piix: Remove ugly layering violation

Petr Vandrovec (1):
      Fix simplex adapters with libata

Robert Hancock (1):
      sata_nv: revert use of notifiers for now

Tejun Heo (2):
      libata: fix ata_host_release() free order
      devres: release resources on device_del()

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index dc42ba1..b952c58 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -93,7 +93,7 @@
 #include <linux/libata.h>

 #define DRV_NAME       "ata_piix"
-#define DRV_VERSION    "2.10"
+#define DRV_VERSION    "2.10ac1"

 enum {
        PIIX_IOCFG              = 0x54, /* IDE I/O configuration register */
@@ -667,14 +667,9 @@ static int ich_pata_prereset(struct ata_port *ap)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);

-       if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) {
-               ata_port_printk(ap, KERN_INFO, "port disabled. ignoring.\n");
-               ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
-               return 0;
-       }
-
+       if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no]))
+               return -ENOENT;
        ich_pata_cbl_detect(ap);
-
        return ata_std_prereset(ap);
 }

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index dc362fa..3c1f883 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3455,7 +3455,8 @@ static void ata_dev_xfermask(struct ata_device *dev)
                               "device is on DMA blacklist, disabling DMA\n");
        }

-       if ((host->flags & ATA_HOST_SIMPLEX) && host->simplex_claimed != ap) {
+       if ((host->flags & ATA_HOST_SIMPLEX) &&
+            host->simplex_claimed && host->simplex_claimed != ap) {
                xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
                ata_dev_printk(dev, KERN_WARNING, "simplex DMA is claimed by "
                               "other device, disabling DMA\n");
@@ -5684,18 +5685,22 @@ static void ata_host_release(struct device *gendev, void *res)
        for (i = 0; i < host->n_ports; i++) {
                struct ata_port *ap = host->ports[i];

-               if (!ap)
-                       continue;
-
-               if (ap->ops->port_stop)
+               if (ap && ap->ops->port_stop)
                        ap->ops->port_stop(ap);
-
-               scsi_host_put(ap->scsi_host);
        }

        if (host->ops->host_stop)
                host->ops->host_stop(host);

+       for (i = 0; i < host->n_ports; i++) {
+               struct ata_port *ap = host->ports[i];
+
+               if (ap)
+                       scsi_host_put(ap->scsi_host);
+
+               host->ports[i] = NULL;
+       }
+
        dev_set_drvdata(gendev, NULL);
 }

diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 388d07f..9d9670a 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -874,8 +874,14 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)

                        if (status & (NV_ADMA_STAT_DONE |
                                      NV_ADMA_STAT_CPBERR)) {
-                               u32 check_commands = notifier | notifier_error;
+                               u32 check_commands;
                                int pos, error = 0;
+
+                               if(ata_tag_valid(ap->active_tag))
+                                       check_commands = 1 << ap->active_tag;
+                               else
+                                       check_commands = ap->sactive;
+
                                /** Check CPBs for completed commands */
                                while ((pos = ffs(check_commands)) && !error) {
                                        pos--;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index cf2a398..89ebe36 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -787,6 +787,13 @@ void device_del(struct device * dev)
        device_remove_attrs(dev);
        bus_remove_device(dev);

+       /*
+        * Some platform devices are driven without driver attached
+        * and managed resources may have been acquired.  Make sure
+        * all resources are released.
+        */
+       devres_release_all(dev);
+
        /* Notify the platform of the removal, in case they
         * need to do anything...
         */
-
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