Hi,

On Sat, Jul 30, 2011 at 3:52 AM, santhosh kumars [off-list ref] wrote:

On Fri, Jul 29, 2011 at 3:56 PM, manish honap
[off-list ref] wrote:

quoted

Well 2.6.39 seems to have changed and the flow as I understand for interrupt
processing is
do_IRQ -> irq_enter -> handle_irq -> ...

but in above flow i cant find local_irq_enable anywhere; is there some different
trick used to enable the interrupts ?

yes in 2.6.34 i am able to find do_IRQ and handle_IRQ_event(), defined in
kernel/irq/handler.c but with 2.6.39 its moved some where .Can any one
please help me on this
where this logic is moved.

You can use LXR to search for stuff (it's a fully cross referenced
index into the kernel code):
http://lxr.linux.no/linux

From this, I searched for do_IRQ against kernel version 2.6.39 and it

appears to have been made architecture specific rather than being
generic.

Some architectures, like ARM, have an asm_do_IRQ rather than do_IRQ.

-- 
Dave Hylands
Shuswap, BC, Canada
http://www.davehylands.com