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