From 9184289c979e78ce466993b53fc951633441e571 Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Thu, 7 Aug 2014 03:32:30 +0400
Subject: [PATCH] xtensa: deprecate fast_xtensa and fast_spill_registers
 syscalls

These syscalls are not used by userspace tools for some time now, and
they have issues when called with invalid arguments. It's not worth
changing signal delivery mechanism as we don't expect any new users for
these syscalls. Let's keep them for backwards compatibility under #ifdef,
disabled by default.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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