diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2013-03-22 10:01:59 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-22 20:55:38 +0400 |
| commit | f3c78f8515dd4cb9e26040ebb54cf589d21137ee (patch) | |
| tree | 0ebf6e06b711de1e35188975065c6129dd3658b9 /drivers/dma | |
| parent | ea3d1cc285bf1ae1fa81b47418cd7fd79990bb06 (diff) | |
| download | linux-f3c78f8515dd4cb9e26040ebb54cf589d21137ee.tar.xz | |
ioat/dca: Update DCA BIOS workarounds to use TAINT_FIRMWARE_WORKAROUND
This patch is meant to be a follow-up for a patch originally submitted under
the title "ioat: Do not enable DCA if tag map is invalid". It was brought to
my attention that the preferred approach for BIOS workarounds is to set the
taint flag for TAINT_FIRMWARE_WORKAROUND for systems that require BIOS
workarounds.
This change makes it so that the DCA workarounds for broken BIOSes will now
use WARN_TAINT_ONCE(1, TAINT_FIRMWARE_WORKAROUND, ...) instead of just
printing a message via dev_err.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ioat/dca.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/dma/ioat/dca.c b/drivers/dma/ioat/dca.c index 9b041858d10d..9e84d5bc9307 100644 --- a/drivers/dma/ioat/dca.c +++ b/drivers/dma/ioat/dca.c @@ -470,8 +470,10 @@ struct dca_provider *ioat2_dca_init(struct pci_dev *pdev, void __iomem *iobase) } if (!dca2_tag_map_valid(ioatdca->tag_map)) { - dev_err(&pdev->dev, "APICID_TAG_MAP set incorrectly by BIOS, " - "disabling DCA\n"); + WARN_TAINT_ONCE(1, TAINT_FIRMWARE_WORKAROUND, + "%s %s: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA\n", + dev_driver_string(&pdev->dev), + dev_name(&pdev->dev)); free_dca_provider(dca); return NULL; } @@ -689,7 +691,10 @@ struct dca_provider *ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase) } if (dca3_tag_map_invalid(ioatdca->tag_map)) { - dev_err(&pdev->dev, "APICID_TAG_MAP set incorrectly by BIOS, disabling DCA\n"); + WARN_TAINT_ONCE(1, TAINT_FIRMWARE_WORKAROUND, + "%s %s: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA\n", + dev_driver_string(&pdev->dev), + dev_name(&pdev->dev)); free_dca_provider(dca); return NULL; } |