Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 406 insertions, 0 deletions

diff --git a/sound/soc/intel/atom/sst/sst_pvt.c b/sound/soc/intel/atom/sst/sst_pvt.c
new file mode 100644
index 000000000..e6a5c18a7
--- /dev/null
+++ b/sound/soc/intel/atom/sst/sst_pvt.c
@@ -0,0 +1,406 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  sst_pvt.c - Intel SST Driver for audio engine
+ *
+ *  Copyright (C) 2008-14	Intel Corp
+ *  Authors:	Vinod Koul <vinod.koul@intel.com>
+ *		Harsha Priya <priya.harsha@intel.com>
+ *		Dharageswari R <dharageswari.r@intel.com>
+ *		KP Jeeja <jeeja.kp@intel.com>
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+#include <linux/kobject.h>
+#include <linux/pci.h>
+#include <linux/fs.h>
+#include <linux/firmware.h>
+#include <linux/pm_runtime.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <sound/asound.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/compress_driver.h>
+#include <asm/platform_sst_audio.h>
+#include "../sst-mfld-platform.h"
+#include "sst.h"
+
+int sst_shim_write(void __iomem *addr, int offset, int value)
+{
+	writel(value, addr + offset);
+	return 0;
+}
+
+u32 sst_shim_read(void __iomem *addr, int offset)
+{
+	return readl(addr + offset);
+}
+
+u64 sst_reg_read64(void __iomem *addr, int offset)
+{
+	u64 val = 0;
+
+	memcpy_fromio(&val, addr + offset, sizeof(val));
+
+	return val;
+}
+
+int sst_shim_write64(void __iomem *addr, int offset, u64 value)
+{
+	memcpy_toio(addr + offset, &value, sizeof(value));
+	return 0;
+}
+
+u64 sst_shim_read64(void __iomem *addr, int offset)
+{
+	u64 val = 0;
+
+	memcpy_fromio(&val, addr + offset, sizeof(val));
+	return val;
+}
+
+void sst_set_fw_state_locked(
+		struct intel_sst_drv *sst_drv_ctx, int sst_state)
+{
+	mutex_lock(&sst_drv_ctx->sst_lock);
+	sst_drv_ctx->sst_state = sst_state;
+	mutex_unlock(&sst_drv_ctx->sst_lock);
+}
+
+/*
+ * sst_wait_interruptible - wait on event
+ *
+ * @sst_drv_ctx: Driver context
+ * @block: Driver block to wait on
+ *
+ * This function waits without a timeout (and is interruptable) for a
+ * given block event
+ */
+int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx,
+				struct sst_block *block)
+{
+	int retval = 0;
+
+	if (!wait_event_interruptible(sst_drv_ctx->wait_queue,
+				block->condition)) {
+		/* event wake */
+		if (block->ret_code < 0) {
+			dev_err(sst_drv_ctx->dev,
+				"stream failed %d\n", block->ret_code);
+			retval = -EBUSY;
+		} else {
+			dev_dbg(sst_drv_ctx->dev, "event up\n");
+			retval = 0;
+		}
+	} else {
+		dev_err(sst_drv_ctx->dev, "signal interrupted\n");
+		retval = -EINTR;
+	}
+	return retval;
+
+}
+
+/*
+ * sst_wait_timeout - wait on event for timeout
+ *
+ * @sst_drv_ctx: Driver context
+ * @block: Driver block to wait on
+ *
+ * This function waits with a timeout value (and is not interruptible) on a
+ * given block event
+ */
+int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx, struct sst_block *block)
+{
+	int retval = 0;
+
+	/*
+	 * NOTE:
+	 * Observed that FW processes the alloc msg and replies even
+	 * before the alloc thread has finished execution
+	 */
+	dev_dbg(sst_drv_ctx->dev,
+		"waiting for condition %x ipc %d drv_id %d\n",
+		block->condition, block->msg_id, block->drv_id);
+	if (wait_event_timeout(sst_drv_ctx->wait_queue,
+				block->condition,
+				msecs_to_jiffies(SST_BLOCK_TIMEOUT))) {
+		/* event wake */
+		dev_dbg(sst_drv_ctx->dev, "Event wake %x\n",
+				block->condition);
+		dev_dbg(sst_drv_ctx->dev, "message ret: %d\n",
+				block->ret_code);
+		retval = -block->ret_code;
+	} else {
+		block->on = false;
+		dev_err(sst_drv_ctx->dev,
+			"Wait timed-out condition:%#x, msg_id:%#x fw_state %#x\n",
+			block->condition, block->msg_id, sst_drv_ctx->sst_state);
+		sst_drv_ctx->sst_state = SST_RESET;
+
+		retval = -EBUSY;
+	}
+	return retval;
+}
+
+/*
+ * sst_create_ipc_msg - create a IPC message
+ *
+ * @arg: ipc message
+ * @large: large or short message
+ *
+ * this function allocates structures to send a large or short
+ * message to the firmware
+ */
+int sst_create_ipc_msg(struct ipc_post **arg, bool large)
+{
+	struct ipc_post *msg;
+
+	msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
+	if (!msg)
+		return -ENOMEM;
+	if (large) {
+		msg->mailbox_data = kzalloc(SST_MAILBOX_SIZE, GFP_ATOMIC);
+		if (!msg->mailbox_data) {
+			kfree(msg);
+			return -ENOMEM;
+		}
+	} else {
+		msg->mailbox_data = NULL;
+	}
+	msg->is_large = large;
+	*arg = msg;
+	return 0;
+}
+
+/*
+ * sst_create_block_and_ipc_msg - Creates IPC message and sst block
+ * @arg: passed to sst_create_ipc_message API
+ * @large: large or short message
+ * @sst_drv_ctx: sst driver context
+ * @block: return block allocated
+ * @msg_id: IPC
+ * @drv_id: stream id or private id
+ */
+int sst_create_block_and_ipc_msg(struct ipc_post **arg, bool large,
+		struct intel_sst_drv *sst_drv_ctx, struct sst_block **block,
+		u32 msg_id, u32 drv_id)
+{
+	int retval;
+
+	retval = sst_create_ipc_msg(arg, large);
+	if (retval)
+		return retval;
+	*block = sst_create_block(sst_drv_ctx, msg_id, drv_id);
+	if (*block == NULL) {
+		kfree(*arg);
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+/*
+ * sst_clean_stream - clean the stream context
+ *
+ * @stream: stream structure
+ *
+ * this function resets the stream contexts
+ * should be called in free
+ */
+void sst_clean_stream(struct stream_info *stream)
+{
+	stream->status = STREAM_UN_INIT;
+	stream->prev = STREAM_UN_INIT;
+	mutex_lock(&stream->lock);
+	stream->cumm_bytes = 0;
+	mutex_unlock(&stream->lock);
+}
+
+int sst_prepare_and_post_msg(struct intel_sst_drv *sst,
+		int task_id, int ipc_msg, int cmd_id, int pipe_id,
+		size_t mbox_data_len, const void *mbox_data, void **data,
+		bool large, bool fill_dsp, bool sync, bool response)
+{
+	struct sst_block *block = NULL;
+	struct ipc_post *msg = NULL;
+	struct ipc_dsp_hdr dsp_hdr;
+	int ret = 0, pvt_id;
+
+	pvt_id = sst_assign_pvt_id(sst);
+	if (pvt_id < 0)
+		return pvt_id;
+
+	if (response)
+		ret = sst_create_block_and_ipc_msg(
+				&msg, large, sst, &block, ipc_msg, pvt_id);
+	else
+		ret = sst_create_ipc_msg(&msg, large);
+
+	if (ret < 0) {
+		test_and_clear_bit(pvt_id, &sst->pvt_id);
+		return -ENOMEM;
+	}
+
+	dev_dbg(sst->dev, "pvt_id = %d, pipe id = %d, task = %d ipc_msg: %d\n",
+		 pvt_id, pipe_id, task_id, ipc_msg);
+	sst_fill_header_mrfld(&msg->mrfld_header, ipc_msg,
+					task_id, large, pvt_id);
+	msg->mrfld_header.p.header_low_payload = sizeof(dsp_hdr) + mbox_data_len;
+	msg->mrfld_header.p.header_high.part.res_rqd = !sync;
+	dev_dbg(sst->dev, "header:%x\n",
+			msg->mrfld_header.p.header_high.full);
+	dev_dbg(sst->dev, "response rqd: %x",
+			msg->mrfld_header.p.header_high.part.res_rqd);
+	dev_dbg(sst->dev, "msg->mrfld_header.p.header_low_payload:%d",
+			msg->mrfld_header.p.header_low_payload);
+	if (fill_dsp) {
+		sst_fill_header_dsp(&dsp_hdr, cmd_id, pipe_id, mbox_data_len);
+		memcpy(msg->mailbox_data, &dsp_hdr, sizeof(dsp_hdr));
+		if (mbox_data_len) {
+			memcpy(msg->mailbox_data + sizeof(dsp_hdr),
+					mbox_data, mbox_data_len);
+		}
+	}
+
+	if (sync)
+		sst->ops->post_message(sst, msg, true);
+	else
+		sst_add_to_dispatch_list_and_post(sst, msg);
+
+	if (response) {
+		ret = sst_wait_timeout(sst, block);
+		if (ret < 0)
+			goto out;
+
+		if (data && block->data) {
+			*data = kmemdup(block->data, block->size, GFP_KERNEL);
+			if (!*data) {
+				ret = -ENOMEM;
+				goto out;
+			}
+		}
+	}
+out:
+	if (response)
+		sst_free_block(sst, block);
+	test_and_clear_bit(pvt_id, &sst->pvt_id);
+	return ret;
+}
+
+int sst_pm_runtime_put(struct intel_sst_drv *sst_drv)
+{
+	int ret;
+
+	pm_runtime_mark_last_busy(sst_drv->dev);
+	ret = pm_runtime_put_autosuspend(sst_drv->dev);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
+void sst_fill_header_mrfld(union ipc_header_mrfld *header,
+				int msg, int task_id, int large, int drv_id)
+{
+	header->full = 0;
+	header->p.header_high.part.msg_id = msg;
+	header->p.header_high.part.task_id = task_id;
+	header->p.header_high.part.large = large;
+	header->p.header_high.part.drv_id = drv_id;
+	header->p.header_high.part.done = 0;
+	header->p.header_high.part.busy = 1;
+	header->p.header_high.part.res_rqd = 1;
+}
+
+void sst_fill_header_dsp(struct ipc_dsp_hdr *dsp, int msg,
+					int pipe_id, int len)
+{
+	dsp->cmd_id = msg;
+	dsp->mod_index_id = 0xff;
+	dsp->pipe_id = pipe_id;
+	dsp->length = len;
+	dsp->mod_id = 0;
+}
+
+#define SST_MAX_BLOCKS 15
+/*
+ * sst_assign_pvt_id - assign a pvt id for stream
+ *
+ * @sst_drv_ctx : driver context
+ *
+ * this function assigns a private id for calls that dont have stream
+ * context yet, should be called with lock held
+ * uses bits for the id, and finds first free bits and assigns that
+ */
+int sst_assign_pvt_id(struct intel_sst_drv *drv)
+{
+	int local;
+
+	spin_lock(&drv->block_lock);
+	/* find first zero index from lsb */
+	local = ffz(drv->pvt_id);
+	dev_dbg(drv->dev, "pvt_id assigned --> %d\n", local);
+	if (local >= SST_MAX_BLOCKS){
+		spin_unlock(&drv->block_lock);
+		dev_err(drv->dev, "PVT _ID error: no free id blocks ");
+		return -EINVAL;
+	}
+	/* toggle the index */
+	change_bit(local, &drv->pvt_id);
+	spin_unlock(&drv->block_lock);
+	return local;
+}
+
+int sst_validate_strid(
+		struct intel_sst_drv *sst_drv_ctx, int str_id)
+{
+	if (str_id <= 0 || str_id > sst_drv_ctx->info.max_streams) {
+		dev_err(sst_drv_ctx->dev,
+			"SST ERR: invalid stream id : %d, max %d\n",
+			str_id, sst_drv_ctx->info.max_streams);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+struct stream_info *get_stream_info(
+		struct intel_sst_drv *sst_drv_ctx, int str_id)
+{
+	if (sst_validate_strid(sst_drv_ctx, str_id))
+		return NULL;
+	return &sst_drv_ctx->streams[str_id];
+}
+
+int get_stream_id_mrfld(struct intel_sst_drv *sst_drv_ctx,
+		u32 pipe_id)
+{
+	int i;
+
+	for (i = 1; i <= sst_drv_ctx->info.max_streams; i++)
+		if (pipe_id == sst_drv_ctx->streams[i].pipe_id)
+			return i;
+
+	dev_dbg(sst_drv_ctx->dev, "no such pipe_id(%u)", pipe_id);
+	return -1;
+}
+
+u32 relocate_imr_addr_mrfld(u32 base_addr)
+{
+	/* Get the difference from 512MB aligned base addr */
+	/* relocate the base */
+	base_addr = MRFLD_FW_VIRTUAL_BASE + (base_addr % (512 * 1024 * 1024));
+	return base_addr;
+}
+EXPORT_SYMBOL_GPL(relocate_imr_addr_mrfld);
+
+void sst_add_to_dispatch_list_and_post(struct intel_sst_drv *sst,
+						struct ipc_post *msg)
+{
+	unsigned long irq_flags;
+
+	spin_lock_irqsave(&sst->ipc_spin_lock, irq_flags);
+	list_add_tail(&msg->node, &sst->ipc_dispatch_list);
+	spin_unlock_irqrestore(&sst->ipc_spin_lock, irq_flags);
+	sst->ops->post_message(sst, NULL, false);
+}