linux-kernel - Re: [PATCH 4.9 00/92] 4.9.81-stable review

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Date:   Sat, 17 Feb 2018 14:31:53 +0100
From:   Yves-Alexis Perez <corsac@...ian.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, shuahkh@....samsung.com,
        patches@...nelci.org, ben.hutchings@...ethink.co.uk,
        lkft-triage@...ts.linaro.org, stable@...r.kernel.org
Subject: Re: [PATCH 4.9 00/92] 4.9.81-stable review

On Tue, 2018-02-13 at 16:29 +0100, Greg Kroah-Hartman wrote:
> > arch/powerpc/kernel/entry_64.S: Assembler messages:
> > arch/powerpc/kernel/entry_64.S:260: Error: unrecognized opcode: `rfi_to_user'
> > arch/powerpc/kernel/entry_64.S:270: Error: unrecognized opcode: `rfi_to_kernel'
> > arch/powerpc/kernel/entry_64.S:885: Error: unrecognized opcode: `rfi_to_user'
> > arch/powerpc/kernel/entry_64.S:900: Error: unrecognized opcode: `rfi_to_kernel'
> > 
> > Looks like 222f20f140623 ("powerpc/64s: Simple RFI macro conversions") is missing,
> > or at least part of it. Unfortunately it doesn't apply cleanly.
> 
> Ugh.  Let's see if the ppc developers care about this or not :)

Hi,

in Debian we extracted the following hunk from 222f20f140623 to fix build on
powerpc/ppc64el. Only compile tested against Debian builds though.

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 3320bcac7192..e68faa4d1b13 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -37,6 +37,11 @@
 #include <asm/tm.h>
 #include <asm/ppc-opcode.h>
 #include <asm/export.h>
+#ifdef CONFIG_PPC_BOOK3S
+#include <asm/exception-64s.h>
+#else
+#include <asm/exception-64e.h>
+#endif
 
 /*
  * System calls.

-- 
Yves-Alexis
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