[dpdk-stable] patch 'build: explicitly enable sse4 for meson' has been queued to LTS release 18.11.7

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/13/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/cd487d1409e2ef4a7181327ab042f48c46039101

Thanks.

Kevin.

---
>From cd487d1409e2ef4a7181327ab042f48c46039101 Mon Sep 17 00:00:00 2001
From: Bruce Richardson <bruce.richardson at intel.com>
Date: Mon, 23 Dec 2019 10:38:40 +0000
Subject: [PATCH] build: explicitly enable sse4 for meson

[ upstream commit 10060dba6455461088d24e03d3cfeba639d53022 ]

If the compiler does not recognise the specific CPU when building with the
default "native" machine type, sse4.2 instructions can be missing, causing
a build error. Rather than advising the user to change the machine type,
we can just turn on SSE4.2 directly. This can prevent issues with running
automated tests with older compilers/distros on newer hardware.

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
Acked-by: David Marchand <david.marchand at redhat.com>
---
 config/x86/meson.build | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/config/x86/meson.build b/config/x86/meson.build
index 50a9edc411..c2be66811f 100644
--- a/config/x86/meson.build
+++ b/config/x86/meson.build
@@ -16,9 +16,7 @@ endif
 
 # we require SSE4.2 for DPDK
-sse_errormsg = '''SSE4.2 instruction set is required for DPDK.
-Please set the machine type to "nehalem" or "corei7" or higher value'''
-
 if cc.get_define('__SSE4_2__', args: machine_args) == ''
-	error(sse_errormsg)
+	message('SSE 4.2 not enabled by default, explicitly enabling')
+	machine_args += '-msse4'
 endif
 
-- 
2.21.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-02-07 15:08:17.763874922 +0000
+++ 0004-build-explicitly-enable-sse4-for-meson.patch	2020-02-07 15:08:17.491063255 +0000
@@ -1 +1 @@
-From 10060dba6455461088d24e03d3cfeba639d53022 Mon Sep 17 00:00:00 2001
+From cd487d1409e2ef4a7181327ab042f48c46039101 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 10060dba6455461088d24e03d3cfeba639d53022 ]
+
@@ -12,2 +13,0 @@
-Cc: stable at dpdk.org
-
@@ -21 +21 @@
-index 8b0fa3e6f1..adc857ba28 100644
+index 50a9edc411..c2be66811f 100644