)]}'
{
  "commit": "a57c1bade5a0ee5cd8b74502db9cbebb7f5780b2",
  "tree": "7919f7e4d85d512442698819db2ef98ed9121574",
  "parents": [
    "4f0ebe3cc57f18ba26317b56b80b108c2848b1de"
  ],
  "author": {
    "name": "Alan Cox",
    "email": "alan@lxorguk.ukuu.org.uk",
    "time": "Thu May 29 22:10:58 2008 +0100"
  },
  "committer": {
    "name": "Jeff Garzik",
    "email": "jgarzik@redhat.com",
    "time": "Wed Jun 04 06:40:41 2008 -0400"
  },
  "message": "libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl\n\n- Make ata_sff_altstatus private so nobody uses it by mistake\n- Drop the 400nS delay from it\n\nAdd\n\nata_sff_irq_status\t-\tencapsulates the IRQ check logic\n\nThis function keeps the existing behaviour for altstatus using devices. I\nactually suspect the logic was wrong before the changes but -rc isn\u0027t the\ntime to play with that\n\nata_sff_sync\t\t-\tensure writes hit the device\n\nReally we want an io* operation for \u0027is posted\u0027 eg ioisposted(ioaddr) so\nthat we can fix the nasty delay this causes on most systems.\n\n- ata_sff_pause\t\t-\t400nS delay\n\nEnsure the command hit the device and delay 400nS\n\n- ata_sff_dma_pause\n\nEnsure the I/O hit the device and enforce an HDMA1:0 transition delay.\nRequires altstatus register exists, BUG if not so we don\u0027t risk\ncorruption in MWDMA modes. (UDMA the checksum will save your backside in\ntheory)\n\nThe only other complication then is devices with their own handlers.\nrb532 can use dma_pause but scc needs to access its own altstatus\nregister for internal errata workarounds so directly call the drivers own\naltstatus function.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Jeff Garzik \u003cjgarzik@redhat.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "3c2d2289f85ee3233c259a4508fdb134e969053d",
      "old_mode": 33188,
      "old_path": "drivers/ata/libata-sff.c",
      "new_id": "90d20c615ef59e28db733dba6330c386673a5e1a",
      "new_mode": 33188,
      "new_path": "drivers/ata/libata-sff.c"
    },
    {
      "type": "modify",
      "old_id": "17138436423dae65d413ffb9111957d1580841da",
      "old_mode": 33188,
      "old_path": "drivers/ata/pata_icside.c",
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      "new_path": "drivers/ata/pata_icside.c"
    },
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      "old_mode": 33188,
      "old_path": "drivers/ata/pata_rb532_cf.c",
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      "new_mode": 33188,
      "new_path": "drivers/ata/pata_rb532_cf.c"
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      "old_mode": 33188,
      "old_path": "drivers/ata/pata_scc.c",
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      "new_path": "drivers/ata/pata_scc.c"
    },
    {
      "type": "modify",
      "old_id": "93e2b89d0c573d18f4d37aaa88806ac5f19d60c6",
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      "old_path": "include/linux/libata.h",
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}