Merge tag 'v6.1.34' into 6.1-main

This is the 6.1.34 stable release

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Documentation/mm/page_table_check.rst

@@ -54,3 +54,22 @@ Build kernel with:
 
 Optionally, build kernel with PAGE_TABLE_CHECK_ENFORCED in order to have page
 table support without extra kernel parameter.
+
+Implementation notes
+====================
+
+We specifically decided not to use VMA information in order to avoid relying on
+MM states (except for limited "struct page" info). The page table check is a
+separate from Linux-MM state machine that verifies that the user accessible
+pages are not falsely shared.
+
+PAGE_TABLE_CHECK depends on EXCLUSIVE_SYSTEM_RAM. The reason is that without
+EXCLUSIVE_SYSTEM_RAM, users are allowed to map arbitrary physical memory
+regions into the userspace via /dev/mem. At the same time, pages may change
+their properties (e.g., from anonymous pages to named pages) while they are
+still being mapped in the userspace, leading to "corruption" detected by the
+page table check.
+
+Even with EXCLUSIVE_SYSTEM_RAM, I/O pages may be still allowed to be mapped via
+/dev/mem. However, these pages are always considered as named pages, so they
+won't break the logic used in the page table check.

Documentation/networking/ip-sysctl.rst

@@ -1247,8 +1247,8 @@ ping_group_range - 2 INTEGERS
 	Restrict ICMP_PROTO datagram sockets to users in the group range.
 	The default is "1 0", meaning, that nobody (not even root) may
 	create ping sockets.  Setting it to "100 100" would grant permissions
-	to the single group. "0 4294967295" would enable it for the world, "100
-	4294967295" would enable it for the users, but not daemons.
+	to the single group. "0 4294967294" would enable it for the world, "100
+	4294967294" would enable it for the users, but not daemons.
 
 tcp_early_demux - BOOLEAN
 	Enable early demux for established TCP sockets.

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
 PATCHLEVEL = 1
-SUBLEVEL = 33
+SUBLEVEL = 34
 EXTRAVERSION =
 NAME = Curry Ramen
 

arch/arm/boot/dts/at91-sama7g5ek.dts

@@ -789,7 +789,7 @@
 };
 
 &shdwc {
-	atmel,shdwc-debouncer = <976>;
+	debounce-delay-us = <976>;
 	status = "okay";
 
 	input@0 {

arch/arm/mach-at91/pm.c

@@ -334,16 +334,14 @@ static bool at91_pm_eth_quirk_is_valid(struct at91_pm_quirk_eth *eth)
 		pdev = of_find_device_by_node(eth->np);
 		if (!pdev)
 			return false;
+		/* put_device(eth->dev) is called at the end of suspend. */
 		eth->dev = &pdev->dev;
 	}
 
 	/* No quirks if device isn't a wakeup source. */
-	if (!device_may_wakeup(eth->dev)) {
-		put_device(eth->dev);
+	if (!device_may_wakeup(eth->dev))
 		return false;
-	}
 
-	/* put_device(eth->dev) is called at the end of suspend. */
 	return true;
 }
 
@@ -439,14 +437,14 @@ static int at91_pm_config_quirks(bool suspend)
 				pr_err("AT91: PM: failed to enable %s clocks\n",
 				       j == AT91_PM_G_ETH ? "geth" : "eth");
 			}
-		} else {
-			/*
-			 * Release the reference to eth->dev taken in
-			 * at91_pm_eth_quirk_is_valid().
-			 */
-			put_device(eth->dev);
-			eth->dev = NULL;
 		}
+
+		/*
+		 * Release the reference to eth->dev taken in
+		 * at91_pm_eth_quirk_is_valid().
+		 */
+		put_device(eth->dev);
+		eth->dev = NULL;
 	}
 
 	return ret;

arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi

@@ -26,6 +26,8 @@ dma_subsys: bus@5a000000 {
 		clocks = <&uart0_lpcg IMX_LPCG_CLK_4>,
 			 <&uart0_lpcg IMX_LPCG_CLK_0>;
 		clock-names = "ipg", "baud";
+		assigned-clocks = <&clk IMX_SC_R_UART_0 IMX_SC_PM_CLK_PER>;
+		assigned-clock-rates = <80000000>;
 		power-domains = <&pd IMX_SC_R_UART_0>;
 		status = "disabled";
 	};
@@ -36,6 +38,8 @@ dma_subsys: bus@5a000000 {
 		clocks = <&uart1_lpcg IMX_LPCG_CLK_4>,
 			 <&uart1_lpcg IMX_LPCG_CLK_0>;
 		clock-names = "ipg", "baud";
+		assigned-clocks = <&clk IMX_SC_R_UART_1 IMX_SC_PM_CLK_PER>;
+		assigned-clock-rates = <80000000>;
 		power-domains = <&pd IMX_SC_R_UART_1>;
 		status = "disabled";
 	};
@@ -46,6 +50,8 @@ dma_subsys: bus@5a000000 {
 		clocks = <&uart2_lpcg IMX_LPCG_CLK_4>,
 			 <&uart2_lpcg IMX_LPCG_CLK_0>;
 		clock-names = "ipg", "baud";
+		assigned-clocks = <&clk IMX_SC_R_UART_2 IMX_SC_PM_CLK_PER>;
+		assigned-clock-rates = <80000000>;
 		power-domains = <&pd IMX_SC_R_UART_2>;
 		status = "disabled";
 	};
@@ -56,6 +62,8 @@ dma_subsys: bus@5a000000 {
 		clocks = <&uart3_lpcg IMX_LPCG_CLK_4>,
 			 <&uart3_lpcg IMX_LPCG_CLK_0>;
 		clock-names = "ipg", "baud";
+		assigned-clocks = <&clk IMX_SC_R_UART_3 IMX_SC_PM_CLK_PER>;
+		assigned-clock-rates = <80000000>;
 		power-domains = <&pd IMX_SC_R_UART_3>;
 		status = "disabled";
 	};

arch/arm64/boot/dts/freescale/imx8mn-beacon-baseboard.dtsi

@@ -81,7 +81,7 @@
 &ecspi2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_espi2>;
-	cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
+	cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
 	status = "okay";
 
 	eeprom@0 {
@@ -202,7 +202,7 @@
 			MX8MN_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK		0x82
 			MX8MN_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI		0x82
 			MX8MN_IOMUXC_ECSPI2_MISO_ECSPI2_MISO		0x82
-			MX8MN_IOMUXC_ECSPI1_SS0_GPIO5_IO9		0x41
+			MX8MN_IOMUXC_ECSPI2_SS0_GPIO5_IO13		0x41
 		>;
 	};
 

arch/arm64/boot/dts/freescale/imx8qm-mek.dts

@@ -82,8 +82,8 @@
 	pinctrl-0 = <&pinctrl_usdhc2>;
 	bus-width = <4>;
 	vmmc-supply = <&reg_usdhc2_vmmc>;
-	cd-gpios = <&lsio_gpio4 22 GPIO_ACTIVE_LOW>;
-	wp-gpios = <&lsio_gpio4 21 GPIO_ACTIVE_HIGH>;
+	cd-gpios = <&lsio_gpio5 22 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&lsio_gpio5 21 GPIO_ACTIVE_HIGH>;
 	status = "okay";
 };
 

arch/arm64/boot/dts/qcom/sc7180-lite.dtsi

@@ -16,3 +16,11 @@
 &cpu6_opp12 {
 	opp-peak-kBps = <8532000 23347200>;
 };
+
+&cpu6_opp13 {
+	opp-peak-kBps = <8532000 23347200>;
+};
+
+&cpu6_opp14 {
+	opp-peak-kBps = <8532000 23347200>;
+};

arch/arm64/boot/dts/qcom/sc8280xp.dtsi

@@ -1727,6 +1727,7 @@
 			qcom,tcs-config = <ACTIVE_TCS  2>, <SLEEP_TCS   3>,
 					  <WAKE_TCS    3>, <CONTROL_TCS 1>;
 			label = "apps_rsc";
+			power-domains = <&CLUSTER_PD>;
 
 			apps_bcm_voter: bcm-voter {
 				compatible = "qcom,bcm-voter";

arch/riscv/Kconfig

@@ -25,6 +25,7 @@ config RISCV
 	select ARCH_HAS_GIGANTIC_PAGE
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_MMIOWB
+	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
 	select ARCH_HAS_PTE_SPECIAL
 	select ARCH_HAS_SET_DIRECT_MAP if MMU
 	select ARCH_HAS_SET_MEMORY if MMU

arch/riscv/include/asm/pgtable.h

@@ -165,8 +165,7 @@ extern struct pt_alloc_ops pt_ops __initdata;
 					 _PAGE_EXEC | _PAGE_WRITE)
 
 #define PAGE_COPY		PAGE_READ
-#define PAGE_COPY_EXEC		PAGE_EXEC
-#define PAGE_COPY_READ_EXEC	PAGE_READ_EXEC
+#define PAGE_COPY_EXEC		PAGE_READ_EXEC
 #define PAGE_SHARED		PAGE_WRITE
 #define PAGE_SHARED_EXEC	PAGE_WRITE_EXEC
 

arch/riscv/mm/init.c

@@ -286,7 +286,7 @@ static const pgprot_t protection_map[16] = {
 	[VM_EXEC]					= PAGE_EXEC,
 	[VM_EXEC | VM_READ]				= PAGE_READ_EXEC,
 	[VM_EXEC | VM_WRITE]				= PAGE_COPY_EXEC,
-	[VM_EXEC | VM_WRITE | VM_READ]			= PAGE_COPY_READ_EXEC,
+	[VM_EXEC | VM_WRITE | VM_READ]			= PAGE_COPY_EXEC,
 	[VM_SHARED]					= PAGE_NONE,
 	[VM_SHARED | VM_READ]				= PAGE_READ,
 	[VM_SHARED | VM_WRITE]				= PAGE_SHARED,

block/blk-mq.c

@@ -685,6 +685,10 @@ static void __blk_mq_free_request(struct request *rq)
 	blk_crypto_free_request(rq);
 	blk_pm_mark_last_busy(rq);
 	rq->mq_hctx = NULL;
+
+	if (rq->rq_flags & RQF_MQ_INFLIGHT)
+		__blk_mq_dec_active_requests(hctx);
+
 	if (rq->tag != BLK_MQ_NO_TAG)
 		blk_mq_put_tag(hctx->tags, ctx, rq->tag);
 	if (sched_tag != BLK_MQ_NO_TAG)
@@ -696,15 +700,11 @@ static void __blk_mq_free_request(struct request *rq)
 void blk_mq_free_request(struct request *rq)
 {
 	struct request_queue *q = rq->q;
-	struct blk_mq_hw_ctx *hctx = rq->mq_hctx;
 
 	if ((rq->rq_flags & RQF_ELVPRIV) &&
 	    q->elevator->type->ops.finish_request)
 		q->elevator->type->ops.finish_request(rq);
 
-	if (rq->rq_flags & RQF_MQ_INFLIGHT)
-		__blk_mq_dec_active_requests(hctx);
-
 	if (unlikely(laptop_mode && !blk_rq_is_passthrough(rq)))
 		laptop_io_completion(q->disk->bdi);
 

drivers/block/rbd.c

@@ -1334,14 +1334,30 @@ static bool rbd_obj_is_tail(struct rbd_obj_request *obj_req)
 /*
  * Must be called after rbd_obj_calc_img_extents().
  */
-static bool rbd_obj_copyup_enabled(struct rbd_obj_request *obj_req)
+static void rbd_obj_set_copyup_enabled(struct rbd_obj_request *obj_req)
 {
-	if (!obj_req->num_img_extents ||
-	    (rbd_obj_is_entire(obj_req) &&
-	     !obj_req->img_request->snapc->num_snaps))
-		return false;
+	rbd_assert(obj_req->img_request->snapc);
 
-	return true;
+	if (obj_req->img_request->op_type == OBJ_OP_DISCARD) {
+		dout("%s %p objno %llu discard\n", __func__, obj_req,
+		     obj_req->ex.oe_objno);
+		return;
+	}
+
+	if (!obj_req->num_img_extents) {
+		dout("%s %p objno %llu not overlapping\n", __func__, obj_req,
+		     obj_req->ex.oe_objno);
+		return;
+	}
+
+	if (rbd_obj_is_entire(obj_req) &&
+	    !obj_req->img_request->snapc->num_snaps) {
+		dout("%s %p objno %llu entire\n", __func__, obj_req,
+		     obj_req->ex.oe_objno);
+		return;
+	}
+
+	obj_req->flags |= RBD_OBJ_FLAG_COPYUP_ENABLED;
 }
 
 static u64 rbd_obj_img_extents_bytes(struct rbd_obj_request *obj_req)
@@ -1442,6 +1458,7 @@ __rbd_obj_add_osd_request(struct rbd_obj_request *obj_req,
 static struct ceph_osd_request *
 rbd_obj_add_osd_request(struct rbd_obj_request *obj_req, int num_ops)
 {
+	rbd_assert(obj_req->img_request->snapc);
 	return __rbd_obj_add_osd_request(obj_req, obj_req->img_request->snapc,
 					 num_ops);
 }
@@ -1578,15 +1595,18 @@ static void rbd_img_request_init(struct rbd_img_request *img_request,
 	mutex_init(&img_request->state_mutex);
 }
 
+/*
+ * Only snap_id is captured here, for reads.  For writes, snapshot
+ * context is captured in rbd_img_object_requests() after exclusive
+ * lock is ensured to be held.
+ */
 static void rbd_img_capture_header(struct rbd_img_request *img_req)
 {
 	struct rbd_device *rbd_dev = img_req->rbd_dev;
 
 	lockdep_assert_held(&rbd_dev->header_rwsem);
 
-	if (rbd_img_is_write(img_req))
-		img_req->snapc = ceph_get_snap_context(rbd_dev->header.snapc);
-	else
+	if (!rbd_img_is_write(img_req))
 		img_req->snap_id = rbd_dev->spec->snap_id;
 
 	if (rbd_dev_parent_get(rbd_dev))
@@ -2233,9 +2253,6 @@ static int rbd_obj_init_write(struct rbd_obj_request *obj_req)
 	if (ret)
 		return ret;
 
-	if (rbd_obj_copyup_enabled(obj_req))
-		obj_req->flags |= RBD_OBJ_FLAG_COPYUP_ENABLED;
-
 	obj_req->write_state = RBD_OBJ_WRITE_START;
 	return 0;
 }
@@ -2341,8 +2358,6 @@ static int rbd_obj_init_zeroout(struct rbd_obj_request *obj_req)
 	if (ret)
 		return ret;
 
-	if (rbd_obj_copyup_enabled(obj_req))
-		obj_req->flags |= RBD_OBJ_FLAG_COPYUP_ENABLED;
 	if (!obj_req->num_img_extents) {
 		obj_req->flags |= RBD_OBJ_FLAG_NOOP_FOR_NONEXISTENT;
 		if (rbd_obj_is_entire(obj_req))
@@ -3287,6 +3302,7 @@ static bool rbd_obj_advance_write(struct rbd_obj_request *obj_req, int *result)
 	case RBD_OBJ_WRITE_START:
 		rbd_assert(!*result);
 
+		rbd_obj_set_copyup_enabled(obj_req);
 		if (rbd_obj_write_is_noop(obj_req))
 			return true;
 
@@ -3473,9 +3489,19 @@ static int rbd_img_exclusive_lock(struct rbd_img_request *img_req)
 
 static void rbd_img_object_requests(struct rbd_img_request *img_req)
 {
+	struct rbd_device *rbd_dev = img_req->rbd_dev;
 	struct rbd_obj_request *obj_req;
 
 	rbd_assert(!img_req->pending.result && !img_req->pending.num_pending);
+	rbd_assert(!need_exclusive_lock(img_req) ||
+		   __rbd_is_lock_owner(rbd_dev));
+
+	if (rbd_img_is_write(img_req)) {
+		rbd_assert(!img_req->snapc);
+		down_read(&rbd_dev->header_rwsem);
+		img_req->snapc = ceph_get_snap_context(rbd_dev->header.snapc);
+		up_read(&rbd_dev->header_rwsem);
+	}
 
 	for_each_obj_request(img_req, obj_req) {
 		int result = 0;
@@ -3493,7 +3519,6 @@ static void rbd_img_object_requests(struct rbd_img_request *img_req)
 
 static bool rbd_img_advance(struct rbd_img_request *img_req, int *result)
 {
-	struct rbd_device *rbd_dev = img_req->rbd_dev;
 	int ret;
 
 again:
@@ -3514,9 +3539,6 @@ static bool rbd_img_advance(struct rbd_img_request *img_req, int *result)
 		if (*result)
 			return true;
 
-		rbd_assert(!need_exclusive_lock(img_req) ||
-			   __rbd_is_lock_owner(rbd_dev));
-
 		rbd_img_object_requests(img_req);
 		if (!img_req->pending.num_pending) {
 			*result = img_req->pending.result;
@@ -3978,6 +4000,10 @@ static int rbd_post_acquire_action(struct rbd_device *rbd_dev)
 {
 	int ret;
 
+	ret = rbd_dev_refresh(rbd_dev);
+	if (ret)
+		return ret;
+
 	if (rbd_dev->header.features & RBD_FEATURE_OBJECT_MAP) {
 		ret = rbd_object_map_open(rbd_dev);
 		if (ret)

drivers/bluetooth/hci_qca.c

@@ -78,7 +78,8 @@ enum qca_flags {
 	QCA_HW_ERROR_EVENT,
 	QCA_SSR_TRIGGERED,
 	QCA_BT_OFF,
-	QCA_ROM_FW
+	QCA_ROM_FW,
+	QCA_DEBUGFS_CREATED,
 };
 
 enum qca_capabilities {
@@ -635,6 +636,9 @@ static void qca_debugfs_init(struct hci_dev *hdev)
 	if (!hdev->debugfs)
 		return;
 
+	if (test_and_set_bit(QCA_DEBUGFS_CREATED, &qca->flags))
+		return;
+
 	ibs_dir = debugfs_create_dir("ibs", hdev->debugfs);
 
 	/* read only */