From: Max Filippov <jcmvbkbc@gmail.com>
Date: Wed, 16 Oct 2013 22:42:23 +0000 (+0400)
Subject: xtensa: clean up do_interrupt/do_IRQ
X-Git-Tag: v3.14-rc1~99^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=996232393bcdfff49de31e1bc1c431fd8bce9ccb;p=pandora-kernel.git

xtensa: clean up do_interrupt/do_IRQ

- set up irq registers and call irq_enter/irq_exit once for each kernel
  entry due to interrupt;
- don't attempt to clear current IRQ in the do_interrupt, IRQ handler
  will take care of it;
- find pending interrupt with highest priority before every ISR
  invocation.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
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