Commit 3b1b1ce3 authored by Alexey Kardashevskiy's avatar Alexey Kardashevskiy Committed by Bjorn Helgaas
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PCI: Correct pci=resource_alignment parameter example 

The "pci=resource_alignment" parameter is described as requiring an order
(not a size) and the code in pci_specified_resource_alignment() expects an
order.

But the example wrongly shows a size.  Convert the example to an order.

Fixes: 8b078c60 ("PCI: Update "pci=resource_alignment" documentation")
Link: https://lore.kernel.org/r/20190606032557.107542-1-aik@ozlabs.ru


Signed-off-by: default avatarAlexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent d2182b2d

Documentation/admin-guide/kernel-parameters.txt

+3 −2
Original line number Original line Diff line number Diff line
@@ -3452,12 +3452,13 @@ 
				specify the device is described above.

				specify the device is described above.

				If <order of align> is not specified,

				If <order of align> is not specified,

				PAGE_SIZE is used as alignment.

				PAGE_SIZE is used as alignment.

				PCI-PCI bridge can be specified, if resource

				A PCI-PCI bridge can be specified if resource

				windows need to be expanded.

				windows need to be expanded.

				To specify the alignment for several

				To specify the alignment for several

				instances of a device, the PCI vendor,

				instances of a device, the PCI vendor,

				device, subvendor, and subdevice may be

				device, subvendor, and subdevice may be

				specified, e.g., 4096@pci:8086:9c22:103c:198f

				specified, e.g., 12@pci:8086:9c22:103c:198f

				for 4096-byte alignment.

		ecrc=		Enable/disable PCIe ECRC (transaction layer

		ecrc=		Enable/disable PCIe ECRC (transaction layer

				end-to-end CRC checking).

				end-to-end CRC checking).

				bios: Use BIOS/firmware settings. This is the

				bios: Use BIOS/firmware settings. This is the