Refreshed all patches.
Altered patches:
- 950-0063-Improve-__copy_to_user-and-__copy_from_user-performa.patch
- 950-0149-Update-vfpmodule.c.patch
- 201-extra_optimization.patch
New symbol:
- CONFIG_HARDEN_BRANCH_PREDICTOR
Compile-tested on: ar71xx, ar7, arc770, at91, brcm2708, brcm63xx, ixp4xx, lantiq, layerscape, mpc85xx, orion, rb532, uml
Runtime-tested on: ar71xx
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
LINUX_RELEASE?=1
-LINUX_VERSION-4.9 = .138
+LINUX_VERSION-4.9 = .143
LINUX_VERSION-4.14 = .82
-LINUX_KERNEL_HASH-4.9.138 = 92301242601d50854b173a3fdec318480e24fc86f32102003a9ed7108fab21b7
+LINUX_KERNEL_HASH-4.9.143 = 0eb76464a696675fd4f8762e390328a377e973bfa263b00544ca1b5b10ac2cbf
LINUX_KERNEL_HASH-4.14.82 = a790a2e6f6a76d70decec91d1b7bcfba90f821b076273da070f6e0e1e6391dad
remove_uri_prefix=$(subst git://,,$(subst http://,,$(subst https://,,$(1))))
CONFIG_GPIO_SYSFS=y
CONFIG_GRACE_PERIOD=y
CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
# CONFIG_GPIO_BCM_VIRT is not set
CONFIG_GPIO_SYSFS=y
CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_GPIO_BCM_VIRT=y
CONFIG_GPIO_SYSFS=y
CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
u32 *data, int in_pm)
{
-@@ -1954,7 +1958,8 @@ static int smsc95xx_rx_fixup(struct usbn
+@@ -1961,7 +1965,8 @@ static int smsc95xx_rx_fixup(struct usbn
if (dev->net->features & NETIF_F_RXCSUM)
smsc95xx_rx_csum_offload(skb);
skb_trim(skb, skb->len - 4); /* remove fcs */
return 1;
}
-@@ -1972,7 +1977,8 @@ static int smsc95xx_rx_fixup(struct usbn
+@@ -1979,7 +1984,8 @@ static int smsc95xx_rx_fixup(struct usbn
if (dev->net->features & NETIF_F_RXCSUM)
smsc95xx_rx_csum_offload(ax_skb);
skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
-@@ -285,7 +285,7 @@ ksym_dep_filter =
+@@ -295,7 +295,7 @@ ksym_dep_filter =
$(CPP) $(call flags_nodeps,c_flags) -D__KSYM_DEPS__ $< ;; \
as_*_S|cpp_s_S) \
$(CPP) $(call flags_nodeps,a_flags) -D__KSYM_DEPS__ $< ;; \
}
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
-@@ -5072,7 +5072,7 @@ static void port_event(struct usb_hub *h
+@@ -5074,7 +5074,7 @@ static void port_event(struct usb_hub *h
if (portchange & USB_PORT_STAT_C_OVERCURRENT) {
u16 status = 0, unused;
#define memset(p,v,n) \
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
-@@ -477,6 +477,9 @@ do { \
+@@ -489,6 +489,9 @@ do { \
extern unsigned long __must_check
arm_copy_from_user(void *to, const void __user *from, unsigned long n);
+.endm
--- a/arch/arm/lib/copy_from_user.S
+++ b/arch/arm/lib/copy_from_user.S
-@@ -89,11 +89,13 @@
+@@ -89,7 +89,8 @@
.text
-ENTRY(arm_copy_from_user)
+ENTRY(__copy_from_user_std)
+WEAK(arm_copy_from_user)
+ #ifdef CONFIG_CPU_SPECTRE
+ get_thread_info r3
+ ldr r3, [r3, #TI_ADDR_LIMIT]
+@@ -102,7 +103,7 @@ ENTRY(arm_copy_from_user)
#include "copy_template.S"
- ENDPROC(arm_copy_from_user)
+-ENDPROC(arm_copy_from_user)
+ENDPROC(__copy_from_user_std)
.pushsection .fixup,"ax"
vfp_save_state(&thread->vfpstate, fpexc | FPEXC_EN);
fmxr(FPEXC, fpexc);
}
-@@ -604,6 +611,7 @@ int vfp_restore_user_hwstate(struct user
+@@ -602,6 +609,7 @@ int vfp_restore_user_hwstate(struct user
+ struct thread_info *thread = current_thread_info();
struct vfp_hard_struct *hwstate = &thread->vfpstate.hard;
unsigned long fpexc;
- int err = 0;
+ u32 fpsid = fmrx(FPSID);
/* Disable VFP to avoid corrupting the new thread state. */
vfp_flush_hwstate(thread);
-@@ -627,8 +635,12 @@ int vfp_restore_user_hwstate(struct user
+@@ -624,8 +632,12 @@ int vfp_restore_user_hwstate(struct user
/* Ensure the VFP is enabled. */
fpexc |= FPEXC_EN;
+
hwstate->fpexc = fpexc;
- __get_user_error(hwstate->fpinst, &ufp_exc->fpinst, err);
-@@ -698,7 +710,8 @@ void kernel_neon_begin(void)
+ hwstate->fpinst = ufp_exc->fpinst;
+@@ -695,7 +707,8 @@ void kernel_neon_begin(void)
cpu = get_cpu();
fpexc = fmrx(FPEXC) | FPEXC_EN;
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
-@@ -2004,13 +2004,13 @@ static struct sk_buff *smsc95xx_tx_fixup
+@@ -2011,13 +2011,13 @@ static struct sk_buff *smsc95xx_tx_fixup
/* We do not advertise SG, so skbs should be already linearized */
BUG_ON(skb_shinfo(skb)->nr_frags);
--- a/Makefile
+++ b/Makefile
-@@ -1213,7 +1213,6 @@ all: modules
+@@ -1226,7 +1226,6 @@ all: modules
PHONY += modules
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
@$(kecho) ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
-@@ -1243,7 +1242,6 @@ _modinst_:
+@@ -1256,7 +1255,6 @@ _modinst_:
rm -f $(MODLIB)/build ; \
ln -s $(CURDIR) $(MODLIB)/build ; \
fi
# Read KERNELRELEASE from include/config/kernel.release (if it exists)
KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
-@@ -638,11 +643,6 @@ KBUILD_CFLAGS += $(call cc-disable-warni
+@@ -671,11 +676,6 @@ KBUILD_CFLAGS += $(call cc-disable-warni
KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
KBUILD_CFLAGS += $(call cc-disable-warning, attribute-alias)
-endif
-
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
- KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) $(EXTRA_OPTIMIZATION)
- else
+ KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
+ KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,) $(EXTRA_OPTIMIZATION)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -81,6 +81,7 @@ config ARM
__used \
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
-@@ -401,7 +401,7 @@ targets += $(extra-y) $(MAKECMDGOALS) $(
+@@ -409,7 +409,7 @@ targets += $(extra-y) $(MAKECMDGOALS) $(
# Linker scripts preprocessor (.lds.S -> .lds)
# ---------------------------------------------------------------------------
quiet_cmd_cpp_lds_S = LDS $@
--- a/Makefile
+++ b/Makefile
-@@ -644,12 +644,12 @@ KBUILD_CFLAGS += $(call cc-option,-fdata
- endif
+@@ -678,12 +678,12 @@ endif
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
--KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
-+KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) $(EXTRA_OPTIMIZATION)
+ KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
+-KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,)
++KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,) $(EXTRA_OPTIMIZATION)
else
ifdef CONFIG_PROFILE_ALL_BRANCHES
-KBUILD_CFLAGS += -O2 $(call cc-disable-warning,maybe-uninitialized,)
static const struct rt6_info ip6_blk_hole_entry_template = {
.dst = {
.__refcnt = ATOMIC_INIT(1),
-@@ -1967,6 +1984,11 @@ static struct rt6_info *ip6_route_info_c
+@@ -1970,6 +1987,11 @@ static struct rt6_info *ip6_route_info_c
rt->dst.output = ip6_pkt_prohibit_out;
rt->dst.input = ip6_pkt_prohibit;
break;
case -EAGAIN:
rtm->rtm_type = RTN_THROW;
break;
-@@ -3490,6 +3527,8 @@ static int ip6_route_dev_notify(struct n
+@@ -3498,6 +3535,8 @@ static int ip6_route_dev_notify(struct n
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
net->ipv6.ip6_prohibit_entry->dst.dev = dev;
net->ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(dev);
net->ipv6.ip6_blk_hole_entry->dst.dev = dev;
net->ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(dev);
#endif
-@@ -3501,6 +3540,7 @@ static int ip6_route_dev_notify(struct n
+@@ -3509,6 +3548,7 @@ static int ip6_route_dev_notify(struct n
in6_dev_put(net->ipv6.ip6_null_entry->rt6i_idev);
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
in6_dev_put(net->ipv6.ip6_prohibit_entry->rt6i_idev);
in6_dev_put(net->ipv6.ip6_blk_hole_entry->rt6i_idev);
#endif
}
-@@ -3716,6 +3756,17 @@ static int __net_init ip6_route_net_init
+@@ -3724,6 +3764,17 @@ static int __net_init ip6_route_net_init
net->ipv6.ip6_blk_hole_entry->dst.ops = &net->ipv6.ip6_dst_ops;
dst_init_metrics(&net->ipv6.ip6_blk_hole_entry->dst,
ip6_template_metrics, true);
#endif
net->ipv6.sysctl.flush_delay = 0;
-@@ -3734,6 +3785,8 @@ out:
+@@ -3742,6 +3793,8 @@ out:
return ret;
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
out_ip6_prohibit_entry:
kfree(net->ipv6.ip6_prohibit_entry);
out_ip6_null_entry:
-@@ -3751,6 +3804,7 @@ static void __net_exit ip6_route_net_exi
+@@ -3759,6 +3812,7 @@ static void __net_exit ip6_route_net_exi
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
kfree(net->ipv6.ip6_prohibit_entry);
kfree(net->ipv6.ip6_blk_hole_entry);
#endif
dst_entries_destroy(&net->ipv6.ip6_dst_ops);
}
-@@ -3824,6 +3878,9 @@ void __init ip6_route_init_special_entri
+@@ -3832,6 +3886,9 @@ void __init ip6_route_init_special_entri
init_net.ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev;
init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
if (!(skb->dev->features & NETIF_F_GRO))
goto normal;
-@@ -5860,6 +5863,48 @@ static void __netdev_adjacent_dev_unlink
+@@ -5864,6 +5867,48 @@ static void __netdev_adjacent_dev_unlink
&upper_dev->adj_list.lower);
}
static int __netdev_upper_dev_link(struct net_device *dev,
struct net_device *upper_dev, bool master,
void *upper_priv, void *upper_info)
-@@ -5932,6 +5977,7 @@ static int __netdev_upper_dev_link(struc
+@@ -5936,6 +5981,7 @@ static int __netdev_upper_dev_link(struc
goto rollback_lower_mesh;
}
ret = call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, dev,
&changeupper_info.info);
ret = notifier_to_errno(ret);
-@@ -6058,6 +6104,7 @@ void netdev_upper_dev_unlink(struct net_
+@@ -6062,6 +6108,7 @@ void netdev_upper_dev_unlink(struct net_
list_for_each_entry(i, &upper_dev->all_adj_list.upper, list)
__netdev_adjacent_dev_unlink(dev, i->dev, i->ref_nr);
call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, dev,
&changeupper_info.info);
}
-@@ -6660,6 +6707,7 @@ int dev_set_mac_address(struct net_devic
+@@ -6664,6 +6711,7 @@ int dev_set_mac_address(struct net_devic
if (err)
return err;
dev->addr_assign_type = NET_ADDR_SET;
CONFIG_GPIO_TWL4030=y
CONFIG_GPIO_XILINX=y
CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
* These are the defined Ethernet Protocol ID's.
--- a/net/core/dev.c
+++ b/net/core/dev.c
-@@ -6652,9 +6652,18 @@ int dev_set_mtu(struct net_device *dev,
+@@ -6656,9 +6656,18 @@ int dev_set_mtu(struct net_device *dev,
if (new_mtu == dev->mtu)
return 0;
int ret;
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
-@@ -4431,6 +4431,14 @@ hub_port_init(struct usb_hub *hub, struc
+@@ -4433,6 +4433,14 @@ hub_port_init(struct usb_hub *hub, struc
else
speed = usb_speed_string(udev->speed);
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
-@@ -2932,6 +2932,7 @@ static irqreturn_t dwc3_interrupt(int ir
+@@ -2927,6 +2927,7 @@ static irqreturn_t dwc3_interrupt(int ir
int dwc3_gadget_init(struct dwc3 *dwc)
{
int ret, irq;
struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
irq = platform_get_irq_byname(dwc3_pdev, "peripheral");
-@@ -3046,6 +3047,12 @@ int dwc3_gadget_init(struct dwc3 *dwc)
+@@ -3041,6 +3042,12 @@ int dwc3_gadget_init(struct dwc3 *dwc)
goto err5;
}