Merge tag 'LA.UM.9.2.r1-02000-SDMxx0.0' of https://source.codeaurora.org/quic/la/kernel/msm-4.4 into lineage-18.1-caf-msm8998

* tag 'LA.UM.9.2.r1-02000-SDMxx0.0' of https://source.codeaurora.org/quic/la/kernel/msm-4.4:
  net: ipv6: Use passed in table for nexthop lookups
  ipv6: addrconf: use stable address generator for ARPHRD_NONE
  msm: kgsl: Protect the memdesc->gpuaddr in SVM use cases
  msm: kgsl: Stop using memdesc->usermem
  msm: kgsl: Correct the refcount on current process PID
  HID: sony: Update hid_have_special_driver
  UPSTREAM: HID: input: map digitizer battery usage
  HID: input: ignore the battery in OKLICK Laser BTmouse
  defconfig: Enable CONFIG_HID_NINTENDO for msm8998
  iio: qcom-rradc: Update logic to monitor health of RRADC peripheral
  qcom: fg-memif: Correct timeout condition for memory grant
  power: qpnp-fg-gen3: Add a property to reset FG BCL device
  msm: ipa3: Add check to validate rule_cnt
  power_supply: add FG_RESET_CLOCK property
  defconfig: Enable CONFIG_HID_NINTENDO for SDM660
  FROMLIST: HID: nintendo: add nintendo switch controller driver
  defconfig: Enable UTS_NS for sdm660

Conflicts:
	drivers/hid/hid-input.c
	drivers/power/power_supply_sysfs.c
	include/linux/power_supply.h

Change-Id: I577e4b1d9410887224dbdb192c6eea1f2de6aded

1 files changed, 38 insertions, 5 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 441f6519e2e7..7061b435072b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2396,6 +2396,12 @@ static void manage_tempaddrs(struct inet6_dev *idev,
 	}
 }
 
+static bool is_addr_mode_generate_stable(struct inet6_dev *idev)
+{
+	return idev->addr_gen_mode == IN6_ADDR_GEN_MODE_STABLE_PRIVACY ||
+	       idev->addr_gen_mode == IN6_ADDR_GEN_MODE_RANDOM;
+}
+
 void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao)
 {
 	struct prefix_info *pinfo;
@@ -2512,8 +2518,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len, bool sllao)
 				       in6_dev->token.s6_addr + 8, 8);
 				read_unlock_bh(&in6_dev->lock);
 				tokenized = true;
-			} else if (in6_dev->addr_gen_mode ==
-				   IN6_ADDR_GEN_MODE_STABLE_PRIVACY &&
+			} else if (is_addr_mode_generate_stable(in6_dev) &&
 				   !ipv6_generate_stable_address(&addr, 0,
 								 in6_dev)) {
 				addr_flags |= IFA_F_STABLE_PRIVACY;
@@ -3113,6 +3118,17 @@ retry:
 	return 0;
 }
 
+static void ipv6_gen_mode_random_init(struct inet6_dev *idev)
+{
+	struct ipv6_stable_secret *s = &idev->cnf.stable_secret;
+
+	if (s->initialized)
+		return;
+	s = &idev->cnf.stable_secret;
+	get_random_bytes(&s->secret, sizeof(s->secret));
+	s->initialized = true;
+}
+
 static void addrconf_addr_gen(struct inet6_dev *idev, bool prefix_route)
 {
 	struct in6_addr addr;
@@ -3123,13 +3139,18 @@ static void addrconf_addr_gen(struct inet6_dev *idev, bool prefix_route)
 
 	ipv6_addr_set(&addr, htonl(0xFE800000), 0, 0, 0);
 
-	if (idev->addr_gen_mode == IN6_ADDR_GEN_MODE_STABLE_PRIVACY) {
+	switch (idev->addr_gen_mode) {
+	case IN6_ADDR_GEN_MODE_RANDOM:
+		ipv6_gen_mode_random_init(idev);
+		/* fallthrough */
+	case IN6_ADDR_GEN_MODE_STABLE_PRIVACY:
 		if (!ipv6_generate_stable_address(&addr, 0, idev))
 			addrconf_add_linklocal(idev, &addr,
 					       IFA_F_STABLE_PRIVACY);
 		else if (prefix_route)
 			addrconf_prefix_route(&addr, 64, idev->dev, 0, 0);
-	} else if (idev->addr_gen_mode == IN6_ADDR_GEN_MODE_EUI64) {
+		break;
+	case IN6_ADDR_GEN_MODE_EUI64:
 		/* addrconf_add_linklocal also adds a prefix_route and we
 		 * only need to care about prefix routes if ipv6_generate_eui64
 		 * couldn't generate one.
@@ -3138,6 +3159,11 @@ static void addrconf_addr_gen(struct inet6_dev *idev, bool prefix_route)
 			addrconf_add_linklocal(idev, &addr, 0);
 		else if (prefix_route)
 			addrconf_prefix_route(&addr, 64, idev->dev, 0, 0);
+		break;
+	case IN6_ADDR_GEN_MODE_NONE:
+	default:
+		/* will not add any link local address */
+		break;
 	}
 }
 
@@ -3155,6 +3181,7 @@ static void addrconf_dev_config(struct net_device *dev)
 	    (dev->type != ARPHRD_IEEE1394) &&
 	    (dev->type != ARPHRD_TUNNEL6) &&
 	    (dev->type != ARPHRD_6LOWPAN) &&
+	    (dev->type != ARPHRD_NONE) &&
 	    (dev->type != ARPHRD_RAWIP) &&
 	    (dev->type != ARPHRD_INFINIBAND)) {
 		/* Alas, we support only Ethernet autoconfiguration. */
@@ -3165,6 +3192,11 @@ static void addrconf_dev_config(struct net_device *dev)
 	if (IS_ERR(idev))
 		return;
 
+	/* this device type has no EUI support */
+	if (dev->type == ARPHRD_NONE &&
+	    idev->addr_gen_mode == IN6_ADDR_GEN_MODE_EUI64)
+		idev->addr_gen_mode = IN6_ADDR_GEN_MODE_RANDOM;
+
 	addrconf_addr_gen(idev, false);
 }
 
@@ -5041,7 +5073,8 @@ static int inet6_set_link_af(struct net_device *dev, const struct nlattr *nla)
 
 		if (mode != IN6_ADDR_GEN_MODE_EUI64 &&
 		    mode != IN6_ADDR_GEN_MODE_NONE &&
-		    mode != IN6_ADDR_GEN_MODE_STABLE_PRIVACY)
+		    mode != IN6_ADDR_GEN_MODE_STABLE_PRIVACY &&
+		    mode != IN6_ADDR_GEN_MODE_RANDOM)
 			return -EINVAL;
 
 		if (mode == IN6_ADDR_GEN_MODE_STABLE_PRIVACY &&