From: Michael Ellerman <mpe@ellerman.id.au>
Date: Tue, 17 Jun 2014 06:15:35 +0000 (+1000)
Subject: powerpc/ftrace: Fix nop of modules on 64bit LE (ABIv2)
X-Git-Tag: omap-for-v3.16/fixes-rc4~57^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d84e0d69c26b4d739214974d6ad6baf23f510580;p=pandora-kernel.git

powerpc/ftrace: Fix nop of modules on 64bit LE (ABIv2)

There is a bug in the handling of the function entry when we are nopping
out a branch from a module in ftrace.

We compare the result of module_trampoline_target() with the value of
ppc_function_entry(), and expect them to be true. But they never will
be.

module_trampoline_target() will always return the global entry point of
the function, whereas ppc_function_entry() will always return the local.

Fix it by using the newly added ppc_global_function_entry().

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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