Commit 036e9ef8 authored Jun 13, 2017 by Prarit Bhargava Committed by Vinod Koul Jun 15, 2017

dmaengine: Replace WARN_TAINT_ONCE() with pr_warn_once()



The WARN_TAINT_ONCE() prints out a loud stack trace on broken BIOSes.
The systems that have this problem are several years out of support and
no longer have BIOS updates available.  The stack trace isn't necessary
and a pr_warn_once() will do.

Change WARN_TAINT_ONCE() to pr_warn_once() and taint.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Duyck, Alexander H <alexander.h.duyck@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 838b56ad

drivers/dma/ioat/dca.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -336,8 +336,8 @@ struct dca_provider ioat_dca_init(struct pci_dev pdev, void __iomem *iobase)
		}

		if (dca3_tag_map_invalid(ioatdca->tag_map)) {
		WARN_TAINT_ONCE(1, TAINT_FIRMWARE_WORKAROUND,
		"%s %s: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA\n",
		add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK);
		pr_warn_once("%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);

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