9 files changed, 18 insertions, 16 deletions

diff --git a/arch/mips/configs/decstation_64_defconfig b/arch/mips/configs/decstation_64_defconfig
index 0021427a1bbe..4044f2829759 100644
--- a/arch/mips/configs/decstation_64_defconfig
+++ b/arch/mips/configs/decstation_64_defconfig
@@ -53,8 +53,6 @@ CONFIG_IPV6_SUBTREES=y
 CONFIG_NETWORK_SECMARK=y
 CONFIG_IP_SCTP=m
 CONFIG_VLAN_8021Q=m
-CONFIG_DECNET=m
-CONFIG_DECNET_ROUTER=y
 # CONFIG_WIRELESS is not set
 # CONFIG_UEVENT_HELPER is not set
 # CONFIG_FW_LOADER is not set
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig
index 7a97a0818ce4..157fc57520a7 100644
--- a/arch/mips/configs/decstation_defconfig
+++ b/arch/mips/configs/decstation_defconfig
@@ -49,8 +49,6 @@ CONFIG_IPV6_SUBTREES=y
 CONFIG_NETWORK_SECMARK=y
 CONFIG_IP_SCTP=m
 CONFIG_VLAN_8021Q=m
-CONFIG_DECNET=m
-CONFIG_DECNET_ROUTER=y
 # CONFIG_WIRELESS is not set
 # CONFIG_UEVENT_HELPER is not set
 # CONFIG_FW_LOADER is not set
diff --git a/arch/mips/configs/decstation_r4k_defconfig b/arch/mips/configs/decstation_r4k_defconfig
index a0643363526d..f73c26ebfc83 100644
--- a/arch/mips/configs/decstation_r4k_defconfig
+++ b/arch/mips/configs/decstation_r4k_defconfig
@@ -48,8 +48,6 @@ CONFIG_IPV6_SUBTREES=y
 CONFIG_NETWORK_SECMARK=y
 CONFIG_IP_SCTP=m
 CONFIG_VLAN_8021Q=m
-CONFIG_DECNET=m
-CONFIG_DECNET_ROUTER=y
 # CONFIG_WIRELESS is not set
 # CONFIG_UEVENT_HELPER is not set
 # CONFIG_FW_LOADER is not set
diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig
index d82f4ebf687f..ce8a444957c1 100644
--- a/arch/mips/configs/gpr_defconfig
+++ b/arch/mips/configs/gpr_defconfig
@@ -69,7 +69,6 @@ CONFIG_IP_NF_RAW=m
 CONFIG_IP_NF_ARPTABLES=m
 CONFIG_IP_NF_ARPFILTER=m
 CONFIG_IP_NF_ARP_MANGLE=m
-CONFIG_DECNET_NF_GRABULATOR=m
 CONFIG_BRIDGE_NF_EBTABLES=m
 CONFIG_BRIDGE_EBT_BROUTE=m
 CONFIG_BRIDGE_EBT_T_FILTER=m
@@ -99,7 +98,6 @@ CONFIG_ATM_MPOA=m
 CONFIG_ATM_BR2684=m
 CONFIG_BRIDGE=m
 CONFIG_VLAN_8021Q=m
-CONFIG_DECNET=m
 CONFIG_LLC2=m
 CONFIG_ATALK=m
 CONFIG_DEV_APPLETALK=m
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index 4194e79b435c..1339c062a042 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -116,7 +116,6 @@ CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
 CONFIG_IP6_NF_RAW=m
-CONFIG_DECNET_NF_GRABULATOR=m
 CONFIG_BRIDGE_NF_EBTABLES=m
 CONFIG_BRIDGE_EBT_BROUTE=m
 CONFIG_BRIDGE_EBT_T_FILTER=m
@@ -146,7 +145,6 @@ CONFIG_ATM_MPOA=m
 CONFIG_ATM_BR2684=m
 CONFIG_BRIDGE=m
 CONFIG_VLAN_8021Q=m
-CONFIG_DECNET=m
 CONFIG_LLC2=m
 CONFIG_ATALK=m
 CONFIG_DEV_APPLETALK=m
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index 7d6f235e8ccb..04c681bd716e 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -116,7 +116,6 @@ CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
 CONFIG_IP6_NF_RAW=m
-CONFIG_DECNET_NF_GRABULATOR=m
 CONFIG_BRIDGE_NF_EBTABLES=m
 CONFIG_BRIDGE_EBT_BROUTE=m
 CONFIG_BRIDGE_EBT_T_FILTER=m
@@ -137,7 +136,6 @@ CONFIG_BRIDGE_EBT_REDIRECT=m
 CONFIG_BRIDGE_EBT_SNAT=m
 CONFIG_BRIDGE_EBT_LOG=m
 CONFIG_BRIDGE=m
-CONFIG_DECNET=m
 CONFIG_NET_SCHED=y
 CONFIG_NET_SCH_CBQ=m
 CONFIG_NET_SCH_HTB=m
diff --git a/arch/mips/net/bpf_jit_comp32.c b/arch/mips/net/bpf_jit_comp32.c
index 83c975d5cca2..ace5db3fbd17 100644
--- a/arch/mips/net/bpf_jit_comp32.c
+++ b/arch/mips/net/bpf_jit_comp32.c
@@ -1377,11 +1377,19 @@ void build_prologue(struct jit_context *ctx)
 	int stack, saved, locals, reserved;
 
 	/*
+	 * In the unlikely event that the TCC limit is raised to more
+	 * than 16 bits, it is clamped to the maximum value allowed for
+	 * the generated code (0xffff). It is better fail to compile
+	 * instead of degrading gracefully.
+	 */
+	BUILD_BUG_ON(MAX_TAIL_CALL_CNT > 0xffff);
+
+	/*
 	 * The first two instructions initialize TCC in the reserved (for us)
 	 * 16-byte area in the parent's stack frame. On a tail call, the
 	 * calling function jumps into the prologue after these instructions.
 	 */
-	emit(ctx, ori, MIPS_R_T9, MIPS_R_ZERO, min(MAX_TAIL_CALL_CNT, 0xffff));
+	emit(ctx, ori, MIPS_R_T9, MIPS_R_ZERO, MAX_TAIL_CALL_CNT);
 	emit(ctx, sw, MIPS_R_T9, 0, MIPS_R_SP);
 
 	/*
diff --git a/arch/mips/net/bpf_jit_comp64.c b/arch/mips/net/bpf_jit_comp64.c
index 6475828ffb36..0e7c1bdcf914 100644
--- a/arch/mips/net/bpf_jit_comp64.c
+++ b/arch/mips/net/bpf_jit_comp64.c
@@ -548,11 +548,19 @@ void build_prologue(struct jit_context *ctx)
 	int stack, saved, locals, reserved;
 
 	/*
+	 * In the unlikely event that the TCC limit is raised to more
+	 * than 16 bits, it is clamped to the maximum value allowed for
+	 * the generated code (0xffff). It is better fail to compile
+	 * instead of degrading gracefully.
+	 */
+	BUILD_BUG_ON(MAX_TAIL_CALL_CNT > 0xffff);
+
+	/*
 	 * The first instruction initializes the tail call count register.
 	 * On a tail call, the calling function jumps into the prologue
 	 * after this instruction.
 	 */
-	emit(ctx, ori, tc, MIPS_R_ZERO, min(MAX_TAIL_CALL_CNT, 0xffff));
+	emit(ctx, ori, tc, MIPS_R_ZERO, MAX_TAIL_CALL_CNT);
 
 	/* === Entry-point for tail calls === */
 
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index 91967824272e..a24f484bfbd2 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -243,8 +243,6 @@ CONFIG_ATM_LANE=m
 CONFIG_ATM_BR2684=m
 CONFIG_BRIDGE=m
 CONFIG_VLAN_8021Q=m
-CONFIG_DECNET=m
-CONFIG_DECNET_ROUTER=y
 CONFIG_ATALK=m
 CONFIG_DEV_APPLETALK=m
 CONFIG_IPDDP=m