diff --git a/recipes-bsp/linux/files/sysmocom-alix/defconfig b/recipes-bsp/linux/files/sysmocom-alix/defconfig
index 443ee06..773739b 100644
--- a/recipes-bsp/linux/files/sysmocom-alix/defconfig
+++ b/recipes-bsp/linux/files/sysmocom-alix/defconfig
@@ -726,7 +726,7 @@ CONFIG_DEFAULT_CUBIC=y
 # CONFIG_DEFAULT_RENO is not set
 CONFIG_DEFAULT_TCP_CONG="cubic"
 CONFIG_TCP_MD5SIG=y
-CONFIG_IPV6=m
+CONFIG_IPV6=y
 CONFIG_IPV6_ROUTER_PREF=y
 CONFIG_IPV6_ROUTE_INFO=y
 # CONFIG_IPV6_OPTIMISTIC_DAD is not set
@@ -1017,7 +1017,7 @@ CONFIG_IP_DCCP_TFRC_LIB=y
 #
 # CONFIG_IP_DCCP_DEBUG is not set
 # CONFIG_NET_DCCPPROBE is not set
-CONFIG_IP_SCTP=m
+CONFIG_IP_SCTP=y
 # CONFIG_NET_SCTPPROBE is not set
 # CONFIG_SCTP_DBG_OBJCNT is not set
 CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
@@ -1025,7 +1025,7 @@ CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
 # CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
 CONFIG_SCTP_COOKIE_HMAC_MD5=y
 # CONFIG_SCTP_COOKIE_HMAC_SHA1 is not set
-CONFIG_INET_SCTP_DIAG=m
+CONFIG_INET_SCTP_DIAG=y
 # CONFIG_RDS is not set
 CONFIG_TIPC=m
 CONFIG_TIPC_MEDIA_UDP=y
@@ -3997,7 +3997,7 @@ CONFIG_CRC32_SLICEBY8=y
 # CONFIG_CRC32_SARWATE is not set
 # CONFIG_CRC32_BIT is not set
 # CONFIG_CRC7 is not set
-CONFIG_LIBCRC32C=m
+CONFIG_LIBCRC32C=y
 # CONFIG_CRC8 is not set
 # CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
 # CONFIG_RANDOM32_SELFTEST is not set
diff --git a/recipes-bsp/linux/files/sysmocom-apu2/defconfig b/recipes-bsp/linux/files/sysmocom-apu2/defconfig
index 5591d54..0f52f06 100644
--- a/recipes-bsp/linux/files/sysmocom-apu2/defconfig
+++ b/recipes-bsp/linux/files/sysmocom-apu2/defconfig
@@ -726,7 +726,7 @@ CONFIG_DEFAULT_CUBIC=y
 # CONFIG_DEFAULT_RENO is not set
 CONFIG_DEFAULT_TCP_CONG="cubic"
 CONFIG_TCP_MD5SIG=y
-CONFIG_IPV6=m
+CONFIG_IPV6=y
 CONFIG_IPV6_ROUTER_PREF=y
 CONFIG_IPV6_ROUTE_INFO=y
 # CONFIG_IPV6_OPTIMISTIC_DAD is not set
@@ -1017,7 +1017,7 @@ CONFIG_IP_DCCP_TFRC_LIB=y
 #
 # CONFIG_IP_DCCP_DEBUG is not set
 # CONFIG_NET_DCCPPROBE is not set
-CONFIG_IP_SCTP=m
+CONFIG_IP_SCTP=y
 # CONFIG_NET_SCTPPROBE is not set
 # CONFIG_SCTP_DBG_OBJCNT is not set
 CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
@@ -1025,7 +1025,7 @@ CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
 # CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
 CONFIG_SCTP_COOKIE_HMAC_MD5=y
 # CONFIG_SCTP_COOKIE_HMAC_SHA1 is not set
-CONFIG_INET_SCTP_DIAG=m
+CONFIG_INET_SCTP_DIAG=y
 # CONFIG_RDS is not set
 CONFIG_TIPC=m
 CONFIG_TIPC_MEDIA_UDP=y
@@ -4001,7 +4001,7 @@ CONFIG_CRC32_SLICEBY8=y
 # CONFIG_CRC32_SARWATE is not set
 # CONFIG_CRC32_BIT is not set
 # CONFIG_CRC7 is not set
-CONFIG_LIBCRC32C=m
+CONFIG_LIBCRC32C=y
 # CONFIG_CRC8 is not set
 # CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
 # CONFIG_RANDOM32_SELFTEST is not set
diff --git a/recipes-bsp/linux/linux-sysmocom_4.9.bb b/recipes-bsp/linux/linux-sysmocom_4.9.bb
index 1aff28d..9d844f5 100644
--- a/recipes-bsp/linux/linux-sysmocom_4.9.bb
+++ b/recipes-bsp/linux/linux-sysmocom_4.9.bb
@@ -15,7 +15,7 @@ BTS_FIRMWARE_NAME_sysmobts-v2 = "sysmobts-v2"
 
 SRCREV = "27afed74546b4fa5546aeea26128eae2dcdc7c1f"
 
-PR = "r5"
+PR = "r6"
 PV = "${LINUX_VERSION}+git${SRCPV}"
 
 SRC_URI = "git://git.sysmocom.de/sysmo-bts/linux.git;protocol=git;branch=tracking/linux-stable-4.9 \