On Tue, Jan 24, 2012 at 11:13:41AM -0800, Randy Dunlap wrote:

On 01/23/2012 01:07 PM, Grant Likely wrote:

quoted

Documentation for irq_domain library which will be created in subsequent
patches.

Signed-off-by: Grant Likely <redacted>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <redacted>
---
 Documentation/IRQ-domain.txt |  113 ++++++++++++++++++++++++++++++++++++++++++
 MAINTAINERS                  |    9 +++
 2 files changed, 122 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/IRQ-domain.txt

diff --git a/Documentation/IRQ-domain.txt b/Documentation/IRQ-domain.txt
new file mode 100644
index 0000000..247f32a
--- /dev/null
+++ b/Documentation/IRQ-domain.txt

@@ -0,0 +1,113 @@
+irq_domain interrupt number mapping library
+
+The current design of the Linux kernel uses a single large number
+space where each separate IRQ source is assigned a different number.
+This is simple when there is only one interrupt controller, but in
+systems with controllers the kernel must ensure that each one does not

           with multiple interrupt controllers,

Hi Randy.  Thanks for the comments.  I've made the changes and they'll appear
in v4 of the series.

g.