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@@ -0,0 +1,70 @@
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+From 1b4af13ff2cc6897557bb0b8d9e2fad4fa4d67aa Mon Sep 17 00:00:00 2001
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+From: "David S. Miller" <davem@davemloft.net>
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+Date: Mon, 5 Jun 2017 11:28:57 -0700
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+Subject: [PATCH] sparc64: Add __multi3 for gcc 7.x and later.
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+
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+Reported-by: Waldemar Brodkorb <wbx@openadk.org>
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+Signed-off-by: David S. Miller <davem@davemloft.net>
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+---
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+ arch/sparc/lib/Makefile | 1 +
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+ arch/sparc/lib/multi3.S | 35 +++++++++++++++++++++++++++++++++++
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+ 2 files changed, 36 insertions(+)
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+ create mode 100644 arch/sparc/lib/multi3.S
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+
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+diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
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+index 69912d2..07c03e7 100644
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+--- a/arch/sparc/lib/Makefile
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++++ b/arch/sparc/lib/Makefile
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+@@ -15,6 +15,7 @@ lib-$(CONFIG_SPARC32) += copy_user.o locks.o
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+ lib-$(CONFIG_SPARC64) += atomic_64.o
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+ lib-$(CONFIG_SPARC32) += lshrdi3.o ashldi3.o
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+ lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o
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++lib-$(CONFIG_SPARC64) += multi3.o
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+
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+ lib-$(CONFIG_SPARC64) += copy_page.o clear_page.o bzero.o
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+ lib-$(CONFIG_SPARC64) += csum_copy.o csum_copy_from_user.o csum_copy_to_user.o
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+diff --git a/arch/sparc/lib/multi3.S b/arch/sparc/lib/multi3.S
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+new file mode 100644
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+index 0000000..d6b6c97
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+--- /dev/null
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++++ b/arch/sparc/lib/multi3.S
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+@@ -0,0 +1,35 @@
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++#include <linux/linkage.h>
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++#include <asm/export.h>
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++
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++ .text
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++ .align 4
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++ENTRY(__multi3) /* %o0 = u, %o1 = v */
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++ mov %o1, %g1
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++ srl %o3, 0, %g4
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++ mulx %g4, %g1, %o1
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++ srlx %g1, 0x20, %g3
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++ mulx %g3, %g4, %g5
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++ sllx %g5, 0x20, %o5
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++ srl %g1, 0, %g4
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++ sub %o1, %o5, %o5
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++ srlx %o5, 0x20, %o5
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++ addcc %g5, %o5, %g5
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++ srlx %o3, 0x20, %o5
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++ mulx %g4, %o5, %g4
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++ mulx %g3, %o5, %o5
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++ sethi %hi(0x80000000), %g3
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++ addcc %g5, %g4, %g5
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++ srlx %g5, 0x20, %g5
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++ add %g3, %g3, %g3
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++ movcc %xcc, %g0, %g3
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++ addcc %o5, %g5, %o5
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++ sllx %g4, 0x20, %g4
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++ add %o1, %g4, %o1
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++ add %o5, %g3, %g2
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++ mulx %g1, %o2, %g1
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++ add %g1, %g2, %g1
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++ mulx %o0, %o3, %o0
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++ retl
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++ add %g1, %o0, %o0
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++ENDPROC(__multi3)
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++EXPORT_SYMBOL(__multi3)
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+--
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+2.1.2.532.g19b5d50
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+
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+
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Waldemar Brodkorb