diff --git a/atrace/1.0/default/AtraceDevice.cpp b/atrace/1.0/default/AtraceDevice.cpp
index 43bcd9a..35d11e9 100644
--- a/atrace/1.0/default/AtraceDevice.cpp
+++ b/atrace/1.0/default/AtraceDevice.cpp
@@ -30,24 +30,25 @@
 
 struct TracingConfig {
     std::string description;
+    // path and if error on failure
     std::vector<std::pair<std::string, bool>> paths;
 };
 
 // This is a map stores categories and their sysfs paths with required flags
 const std::map<std::string, TracingConfig> kTracingMap = {
-    // gfx
-    {
-        "gfx",
-        {"Graphics",
-         {{"/sys/kernel/debug/tracing/events/mdss/enable", false},
-          {"/sys/kernel/debug/tracing/events/sde/enable", false},
-          {"/sys/kernel/debug/tracing/events/mali_systrace/enable", false}}},
-    },
-    {
-        "ion",
-        {"ION allocation",
-         {{"/sys/kernel/debug/tracing/events/kmem/ion_alloc_buffer_start/enable", true}}},
-    },
+        // gfx
+        {
+                "gfx",
+                {"Graphics",
+                 {{"/sys/kernel/debug/tracing/events/mdss/enable", false},
+                  {"/sys/kernel/debug/tracing/events/sde/enable", false},
+                  {"/sys/kernel/debug/tracing/events/mali_systrace/enable", false}}},
+        },
+        {
+                "ion",
+                {"ION allocation",
+                 {{"/sys/kernel/debug/tracing/events/kmem/ion_alloc_buffer_start/enable", false}}},
+        },
 };
 
 // Methods from ::android::hardware::atrace::V1_0::IAtraceDevice follow.
diff --git a/current.txt b/current.txt
index 96c1bbf..458e360 100644
--- a/current.txt
+++ b/current.txt
@@ -396,6 +396,8 @@
 d702fb01dc2a0733aa820b7eb65435ee3334f75632ef880bafd2fb8803a20a58 android.hardware.gnss@1.0::IGnssMeasurementCallback
 7c7721c0f773fcf422b71a4f558545e9e36acc973e58ca51e5bd53905cf46bc0 android.hardware.graphics.bufferqueue@1.0::IGraphicBufferProducer
 d4fea995378bb4f421b4e24ccf68cad2734ab07fe4f874a126ba558b99df5766 android.hardware.graphics.composer@2.1::IComposerClient
+f7d7cb747dc01a9fdb2d39a80003b4d8df9be733d65f5842198802eb6209db69 android.hardware.graphics.mapper@2.0::IMapper
+65a021fa89085b62fc96b2b6d3bef2f9103cf4d63379c68bc154fd9eef672852 android.hardware.health@1.0::types
 b7ecf29927055ec422ec44bf776223f07d79ad9f92ccf9becf167e62c2607e7a android.hardware.keymaster@4.0::IKeymasterDevice
 574e8f1499436fb4075894dcae0b36682427956ecb114f17f1fe22d116a83c6b android.hardware.neuralnetworks@1.0::IPreparedModel
 417ab60fe1ef786778047e4486f3d868ebce570d91addd8fe4251515213072de android.hardware.neuralnetworks@1.0::types
diff --git a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h
index 3a73f84..1df496c 100644
--- a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h
+++ b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h
@@ -170,7 +170,7 @@
     }
 
     Error lookupCache(uint32_t slot, const native_handle_t** outHandle) {
-        if (slot < mHandles.size()) {
+        if (slot >= 0 && slot < mHandles.size()) {
             *outHandle = mHandles[slot];
             return Error::NONE;
         } else {
@@ -180,7 +180,7 @@
 
     Error updateCache(uint32_t slot, const native_handle_t* handle,
                       const native_handle** outReplacedHandle) {
-        if (slot < mHandles.size()) {
+        if (slot >= 0 && slot < mHandles.size()) {
             auto& cachedHandle = mHandles[slot];
             *outReplacedHandle = cachedHandle;
             cachedHandle = handle;
diff --git a/graphics/mapper/2.0/IMapper.hal b/graphics/mapper/2.0/IMapper.hal
index 4566135..0e18f42 100644
--- a/graphics/mapper/2.0/IMapper.hal
+++ b/graphics/mapper/2.0/IMapper.hal
@@ -147,6 +147,9 @@
      * outside of accessRegion is undefined, except that it must not cause
      * process termination.
      *
+     * An accessRegion of all-zeros means the entire buffer. That is, it is
+     * equivalent to '(0,0)-(buffer width, buffer height)'.
+     *
      * data will be filled with a pointer to the locked buffer memory. This
      * address will represent the top-left corner of the entire buffer, even
      * if accessRegion does not begin at the top-left corner.
diff --git a/health/1.0/types.hal b/health/1.0/types.hal
index 377d1bd..90b8bb1 100644
--- a/health/1.0/types.hal
+++ b/health/1.0/types.hal
@@ -190,7 +190,13 @@
     /** Remaining battery capacity in percent */
     int32_t batteryLevel;
 
-    /** Instantaneous battery voltage in uV */
+    /**
+     * Instantaneous battery voltage in millivolts (mV).
+     *
+     * Historically, the unit of this field is microvolts (uV), but all
+     * clients and implementations uses millivolts in practice, making it
+     * the de-facto standard.
+     */
     int32_t batteryVoltage;
 
     /** Instantaneous battery temperature in tenths of degree celcius */
diff --git a/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp b/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
index a9c6f6c..5c07532 100644
--- a/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
+++ b/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
@@ -172,6 +172,20 @@
     "E78E70BEFE930DB34818EE4D5C26259F5C6B8E28A652950F9F88D7B4B2C9"
     "D9");
 
+string ec_256_key_rfc5915 =
+        hex2str("308193020100301306072a8648ce3d020106082a8648ce3d030107047930"
+                "770201010420782370a8c8ce5537baadd04dcff079c8158cfa9c67b818b3"
+                "8e8d21c9fa750c1da00a06082a8648ce3d030107a14403420004e2cc561e"
+                "e701da0ad0ef0d176bb0c919d42e79c393fdc1bd6c4010d85cf2cf8e68c9"
+                "05464666f98dad4f01573ba81078b3428570a439ba3229fbc026c550682f");
+
+string ec_256_key_sec1 =
+        hex2str("308187020100301306072a8648ce3d020106082a8648ce3d030107046d30"
+                "6b0201010420782370a8c8ce5537baadd04dcff079c8158cfa9c67b818b3"
+                "8e8d21c9fa750c1da14403420004e2cc561ee701da0ad0ef0d176bb0c919"
+                "d42e79c393fdc1bd6c4010d85cf2cf8e68c905464666f98dad4f01573ba8"
+                "1078b3428570a439ba3229fbc026c550682f");
+
 struct RSA_Delete {
     void operator()(RSA* p) { RSA_free(p); }
 };
@@ -1778,6 +1792,56 @@
 }
 
 /*
+ * ImportKeyTest.EcdsaP256RFC5915Success
+ *
+ * Verifies that importing and using an ECDSA P-256 key pair encoded using RFC5915 works correctly.
+ */
+TEST_F(ImportKeyTest, EcdsaP256RFC5915Success) {
+    ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+                                               .Authorization(TAG_NO_AUTH_REQUIRED)
+                                               .EcdsaSigningKey(256)
+                                               .Digest(Digest::SHA_2_256),
+                                       KeyFormat::PKCS8, ec_256_key_rfc5915));
+
+    CheckCryptoParam(TAG_ALGORITHM, Algorithm::EC);
+    CheckCryptoParam(TAG_KEY_SIZE, 256U);
+    CheckCryptoParam(TAG_DIGEST, Digest::SHA_2_256);
+    CheckCryptoParam(TAG_EC_CURVE, EcCurve::P_256);
+
+    CheckOrigin();
+
+    string message(32, 'a');
+    auto params = AuthorizationSetBuilder().Digest(Digest::SHA_2_256);
+    string signature = SignMessage(message, params);
+    VerifyMessage(message, signature, params);
+}
+
+/*
+ * ImportKeyTest.EcdsaP256SEC1Success
+ *
+ * Verifies that importing and using an ECDSA P-256 key pair encoded using SEC1 works correctly.
+ */
+TEST_F(ImportKeyTest, EcdsaP256SEC1Success) {
+    ASSERT_EQ(ErrorCode::OK, ImportKey(AuthorizationSetBuilder()
+                                               .Authorization(TAG_NO_AUTH_REQUIRED)
+                                               .EcdsaSigningKey(256)
+                                               .Digest(Digest::SHA_2_256),
+                                       KeyFormat::PKCS8, ec_256_key_sec1));
+
+    CheckCryptoParam(TAG_ALGORITHM, Algorithm::EC);
+    CheckCryptoParam(TAG_KEY_SIZE, 256U);
+    CheckCryptoParam(TAG_DIGEST, Digest::SHA_2_256);
+    CheckCryptoParam(TAG_EC_CURVE, EcCurve::P_256);
+
+    CheckOrigin();
+
+    string message(32, 'a');
+    auto params = AuthorizationSetBuilder().Digest(Digest::SHA_2_256);
+    string signature = SignMessage(message, params);
+    VerifyMessage(message, signature, params);
+}
+
+/*
  * ImportKeyTest.Ecdsa521Success
  *
  * Verifies that importing and using an ECDSA P-521 key pair works correctly.
diff --git a/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp b/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
index 72cafd1..1b7e821 100644
--- a/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
+++ b/wifi/1.0/vts/functional/wifi_chip_hidl_test.cpp
@@ -361,8 +361,8 @@
 
 /*
  * CreateApIface
- * Configures the chip in AP mode and ensures that only 1 iface creation
- * succeeds. The 2nd iface creation should be rejected.
+ * Configures the chip in AP mode and ensures that at least 1 iface creation
+ * succeeds.
  */
 TEST_F(WifiChipHidlTest, CreateApIface) {
     if (!gEnv->isSoftApOn) return;
@@ -371,8 +371,6 @@
     sp<IWifiApIface> iface;
     EXPECT_EQ(WifiStatusCode::SUCCESS, createApIface(&iface));
     EXPECT_NE(nullptr, iface.get());
-
-    EXPECT_EQ(WifiStatusCode::ERROR_NOT_AVAILABLE, createApIface(&iface));
 }
 
 /*
@@ -460,8 +458,8 @@
 
 /*
  * CreateNanIface
- * Configures the chip in NAN mode and ensures that only 1 iface creation
- * succeeds. The 2nd iface creation should be rejected.
+ * Configures the chip in NAN mode and ensures that at least 1 iface creation
+ * succeeds.
  */
 TEST_F(WifiChipHidlTest, CreateNanIface) {
     if (!gEnv->isNanOn) return;
@@ -470,8 +468,6 @@
     sp<IWifiNanIface> iface;
     ASSERT_EQ(WifiStatusCode::SUCCESS, createNanIface(&iface));
     EXPECT_NE(nullptr, iface.get());
-
-    EXPECT_EQ(WifiStatusCode::ERROR_NOT_AVAILABLE, createNanIface(&iface));
 }
 
 /*
@@ -560,8 +556,8 @@
 
 /*
  * CreateP2pIface
- * Configures the chip in P2P mode and ensures that only 1 iface creation
- * succeeds. The 2nd iface creation should be rejected.
+ * Configures the chip in P2P mode and ensures that at least 1 iface creation
+ * succeeds.
  */
 TEST_F(WifiChipHidlTest, CreateP2pIface) {
     configureChipForIfaceType(IfaceType::P2P, true);
@@ -569,8 +565,6 @@
     sp<IWifiP2pIface> iface;
     EXPECT_EQ(WifiStatusCode::SUCCESS, createP2pIface(&iface));
     EXPECT_NE(nullptr, iface.get());
-
-    EXPECT_EQ(WifiStatusCode::ERROR_NOT_AVAILABLE, createP2pIface(&iface));
 }
 
 /*
@@ -655,8 +649,8 @@
 
 /*
  * CreateStaIface
- * Configures the chip in STA mode and ensures that only 1 iface creation
- * succeeds. The 2nd iface creation should be rejected.
+ * Configures the chip in STA mode and ensures that at least 1 iface creation
+ * succeeds.
  */
 TEST_F(WifiChipHidlTest, CreateStaIface) {
     configureChipForIfaceType(IfaceType::STA, true);
@@ -664,8 +658,6 @@
     sp<IWifiStaIface> iface;
     EXPECT_EQ(WifiStatusCode::SUCCESS, createStaIface(&iface));
     EXPECT_NE(nullptr, iface.get());
-
-    EXPECT_EQ(WifiStatusCode::ERROR_NOT_AVAILABLE, createStaIface(&iface));
 }
 
 /*