2 files changed, 5 insertions, 2 deletions
diff --git a/.SRCINFO b/.SRCINFO
index 428657c5dc51..986290c6a745 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,6 +1,6 @@
 pkgbase = linux-amd-raven
 	pkgver = 5.1.v.21
-	pkgrel = 1
+	pkgrel = 2
 	url = https://www.kernel.org/
 	arch = x86_64
 	license = GPL2
diff --git a/PKGBUILD b/PKGBUILD
index 7c9d55ff57ac..ebd62125c1a2 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -4,7 +4,7 @@ pkgbase=linux-amd-raven
 _srcname=linux
 gitver=v5.1.21
 pkgver=5.1.v.21
-pkgrel=1
+pkgrel=2
 arch=('x86_64')
 url="https://www.kernel.org/"
 license=('GPL2')
@@ -61,6 +61,9 @@ prepare() {
 build() {
   cd "${_srcname}"
 
+  #Force zenv1 architecture optimisation.
+  export CFLAGS="-march=znver1 -mtune=znver1 -O2 -pipe -fstack-protector-strong"
+  export CXXFLAGS="${CFLAGS}"
   make ${MAKEFLAGS} LOCALVERSION= bzImage modules
 }