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PCI/doc: Update obsolete pci_set_dma_mask() references 

The function is dma_set_mask(), fix a missed instance of the old
pci_set_dma_mask() and a reference to a function that doesn't exist.

Fixes: 05b0ebd06a ("PCI/doc: cleanup references to the legacy PCI DMA API")
Link: https://lore.kernel.org/r/165048747271.2959320.13475081883467312497.stgit@omen
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Alex Williamson 2022-04-20 14:45:05 -06:00 committed by Bjorn Helgaas
parent 3123109284
commit f21949c149
1 changed files with 2 additions and 2 deletions
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4
Documentation/PCI/pci.rst
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@ -273,12 +273,12 @@ Set the DMA mask size
While all drivers should explicitly indicate the DMA capability While all drivers should explicitly indicate the DMA capability
(e.g. 32 or 64 bit) of the PCI bus master, devices with more than (e.g. 32 or 64 bit) of the PCI bus master, devices with more than
32-bit bus master capability for streaming data need the driver 32-bit bus master capability for streaming data need the driver
to "register" this capability by calling pci_set_dma_mask() with to "register" this capability by calling dma_set_mask() with
appropriate parameters. In general this allows more efficient DMA appropriate parameters. In general this allows more efficient DMA
on systems where System RAM exists above 4G _physical_ address. on systems where System RAM exists above 4G _physical_ address.
Drivers for all PCI-X and PCIe compliant devices must call Drivers for all PCI-X and PCIe compliant devices must call
set_dma_mask() as they are 64-bit DMA devices. dma_set_mask() as they are 64-bit DMA devices.
Similarly, drivers must also "register" this capability if the device Similarly, drivers must also "register" this capability if the device
can directly address "coherent memory" in System RAM above 4G physical can directly address "coherent memory" in System RAM above 4G physical