From 8bc588e0e585bc9085df75e84d4d5635f45cf360 Mon Sep 17 00:00:00 2001 From: Lubomir Rintel Date: Sun, 22 Dec 2013 11:34:22 +0100 Subject: firewire: ohci: Turn remote DMA support into a module parameter This makes it possible to debug kernel over FireWire without the need to recompile it. [Stefan R: changed description from "...0" to "...N"] Cc: Dave Hansen Signed-off-by: Lubomir Rintel Signed-off-by: Stefan Richter --- Documentation/debugging-via-ohci1394.txt | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'Documentation/debugging-via-ohci1394.txt') diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt index 14d194496490..73473aa8d861 100644 --- a/Documentation/debugging-via-ohci1394.txt +++ b/Documentation/debugging-via-ohci1394.txt @@ -38,9 +38,7 @@ Drivers The firewire-ohci driver in drivers/firewire uses filtered physical DMA by default, which is more secure but not suitable for remote debugging. -Compile the driver with CONFIG_FIREWIRE_OHCI_REMOTE_DMA (Kernel hacking menu: -Remote debugging over FireWire with firewire-ohci) to get unfiltered physical -DMA. +Pass the remote_dma=1 parameter to the driver to get unfiltered physical DMA. Because the firewire-ohci driver depends on the PCI enumeration to be completed, an initialization routine which runs pretty early has been -- cgit v1.2.3