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, 393 insertions, 0 deletions

diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
new file mode 100644
index 000000000..9c7c662cb
--- /dev/null
+++ b/arch/sparc/kernel/process_32.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: GPL-2.0
+/*  linux/arch/sparc/kernel/process.c
+ *
+ *  Copyright (C) 1995, 2008 David S. Miller (davem@davemloft.net)
+ *  Copyright (C) 1996 Eddie C. Dost   (ecd@skynet.be)
+ */
+
+/*
+ * This file handles the architecture-dependent parts of process handling..
+ */
+#include <linux/elfcore.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/smp.h>
+#include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <linux/cpu.h>
+
+#include <asm/auxio.h>
+#include <asm/oplib.h>
+#include <linux/uaccess.h>
+#include <asm/page.h>
+#include <asm/delay.h>
+#include <asm/processor.h>
+#include <asm/psr.h>
+#include <asm/elf.h>
+#include <asm/prom.h>
+#include <asm/unistd.h>
+#include <asm/setup.h>
+
+#include "kernel.h"
+
+/* 
+ * Power management idle function 
+ * Set in pm platform drivers (apc.c and pmc.c)
+ */
+void (*sparc_idle)(void);
+
+/* 
+ * Power-off handler instantiation for pm.h compliance
+ * This is done via auxio, but could be used as a fallback
+ * handler when auxio is not present-- unused for now...
+ */
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
+
+/*
+ * sysctl - toggle power-off restriction for serial console 
+ * systems in machine_power_off()
+ */
+int scons_pwroff = 1;
+
+extern void fpsave(unsigned long *, unsigned long *, void *, unsigned long *);
+
+struct task_struct *last_task_used_math = NULL;
+struct thread_info *current_set[NR_CPUS];
+
+/* Idle loop support. */
+void arch_cpu_idle(void)
+{
+	if (sparc_idle)
+		(*sparc_idle)();
+}
+
+/* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */
+void machine_halt(void)
+{
+	local_irq_enable();
+	mdelay(8);
+	local_irq_disable();
+	prom_halt();
+	panic("Halt failed!");
+}
+
+void machine_restart(char * cmd)
+{
+	char *p;
+	
+	local_irq_enable();
+	mdelay(8);
+	local_irq_disable();
+
+	p = strchr (reboot_command, '\n');
+	if (p) *p = 0;
+	if (cmd)
+		prom_reboot(cmd);
+	if (*reboot_command)
+		prom_reboot(reboot_command);
+	prom_feval ("reset");
+	panic("Reboot failed!");
+}
+
+void machine_power_off(void)
+{
+	if (auxio_power_register &&
+	    (!of_node_is_type(of_console_device, "serial") || scons_pwroff)) {
+		u8 power_register = sbus_readb(auxio_power_register);
+		power_register |= AUXIO_POWER_OFF;
+		sbus_writeb(power_register, auxio_power_register);
+	}
+
+	machine_halt();
+}
+
+void show_regs(struct pt_regs *r)
+{
+	struct reg_window32 *rw = (struct reg_window32 *) r->u_regs[14];
+
+	show_regs_print_info(KERN_DEFAULT);
+
+        printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx    %s\n",
+	       r->psr, r->pc, r->npc, r->y, print_tainted());
+	printk("PC: <%pS>\n", (void *) r->pc);
+	printk("%%G: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
+	       r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3],
+	       r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]);
+	printk("%%O: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
+	       r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11],
+	       r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]);
+	printk("RPC: <%pS>\n", (void *) r->u_regs[15]);
+
+	printk("%%L: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
+	       rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3],
+	       rw->locals[4], rw->locals[5], rw->locals[6], rw->locals[7]);
+	printk("%%I: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
+	       rw->ins[0], rw->ins[1], rw->ins[2], rw->ins[3],
+	       rw->ins[4], rw->ins[5], rw->ins[6], rw->ins[7]);
+}
+
+/*
+ * The show_stack() is external API which we do not use ourselves.
+ * The oops is printed in die_if_kernel.
+ */
+void show_stack(struct task_struct *tsk, unsigned long *_ksp, const char *loglvl)
+{
+	unsigned long pc, fp;
+	unsigned long task_base;
+	struct reg_window32 *rw;
+	int count = 0;
+
+	if (!tsk)
+		tsk = current;
+
+	if (tsk == current && !_ksp)
+		__asm__ __volatile__("mov	%%fp, %0" : "=r" (_ksp));
+
+	task_base = (unsigned long) task_stack_page(tsk);
+	fp = (unsigned long) _ksp;
+	do {
+		/* Bogus frame pointer? */
+		if (fp < (task_base + sizeof(struct thread_info)) ||
+		    fp >= (task_base + (PAGE_SIZE << 1)))
+			break;
+		rw = (struct reg_window32 *) fp;
+		pc = rw->ins[7];
+		printk("%s[%08lx : ", loglvl, pc);
+		printk("%s%pS ] ", loglvl, (void *) pc);
+		fp = rw->ins[6];
+	} while (++count < 16);
+	printk("%s\n", loglvl);
+}
+
+/*
+ * Free current thread data structures etc..
+ */
+void exit_thread(struct task_struct *tsk)
+{
+#ifndef CONFIG_SMP
+	if (last_task_used_math == tsk) {
+#else
+	if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {
+#endif
+		/* Keep process from leaving FPU in a bogon state. */
+		put_psr(get_psr() | PSR_EF);
+		fpsave(&tsk->thread.float_regs[0], &tsk->thread.fsr,
+		       &tsk->thread.fpqueue[0], &tsk->thread.fpqdepth);
+#ifndef CONFIG_SMP
+		last_task_used_math = NULL;
+#else
+		clear_ti_thread_flag(task_thread_info(tsk), TIF_USEDFPU);
+#endif
+	}
+}
+
+void flush_thread(void)
+{
+	current_thread_info()->w_saved = 0;
+
+#ifndef CONFIG_SMP
+	if(last_task_used_math == current) {
+#else
+	if (test_thread_flag(TIF_USEDFPU)) {
+#endif
+		/* Clean the fpu. */
+		put_psr(get_psr() | PSR_EF);
+		fpsave(&current->thread.float_regs[0], &current->thread.fsr,
+		       &current->thread.fpqueue[0], &current->thread.fpqdepth);
+#ifndef CONFIG_SMP
+		last_task_used_math = NULL;
+#else
+		clear_thread_flag(TIF_USEDFPU);
+#endif
+	}
+}
+
+static inline struct sparc_stackf __user *
+clone_stackframe(struct sparc_stackf __user *dst,
+		 struct sparc_stackf __user *src)
+{
+	unsigned long size, fp;
+	struct sparc_stackf *tmp;
+	struct sparc_stackf __user *sp;
+
+	if (get_user(tmp, &src->fp))
+		return NULL;
+
+	fp = (unsigned long) tmp;
+	size = (fp - ((unsigned long) src));
+	fp = (unsigned long) dst;
+	sp = (struct sparc_stackf __user *)(fp - size); 
+
+	/* do_fork() grabs the parent semaphore, we must release it
+	 * temporarily so we can build the child clone stack frame
+	 * without deadlocking.
+	 */
+	if (__copy_user(sp, src, size))
+		sp = NULL;
+	else if (put_user(fp, &sp->fp))
+		sp = NULL;
+
+	return sp;
+}
+
+/* Copy a Sparc thread.  The fork() return value conventions
+ * under SunOS are nothing short of bletcherous:
+ * Parent -->  %o0 == childs  pid, %o1 == 0
+ * Child  -->  %o0 == parents pid, %o1 == 1
+ *
+ * NOTE: We have a separate fork kpsr/kwim because
+ *       the parent could change these values between
+ *       sys_fork invocation and when we reach here
+ *       if the parent should sleep while trying to
+ *       allocate the task_struct and kernel stack in
+ *       do_fork().
+ * XXX See comment above sys_vfork in sparc64. todo.
+ */
+extern void ret_from_fork(void);
+extern void ret_from_kernel_thread(void);
+
+int copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
+{
+	unsigned long clone_flags = args->flags;
+	unsigned long sp = args->stack;
+	unsigned long tls = args->tls;
+	struct thread_info *ti = task_thread_info(p);
+	struct pt_regs *childregs, *regs = current_pt_regs();
+	char *new_stack;
+
+#ifndef CONFIG_SMP
+	if(last_task_used_math == current) {
+#else
+	if (test_thread_flag(TIF_USEDFPU)) {
+#endif
+		put_psr(get_psr() | PSR_EF);
+		fpsave(&p->thread.float_regs[0], &p->thread.fsr,
+		       &p->thread.fpqueue[0], &p->thread.fpqdepth);
+	}
+
+	/*
+	 *  p->thread_info         new_stack   childregs stack bottom
+	 *  !                      !           !             !
+	 *  V                      V (stk.fr.) V  (pt_regs)  V
+	 *  +----- - - - - - ------+===========+=============+
+	 */
+	new_stack = task_stack_page(p) + THREAD_SIZE;
+	new_stack -= STACKFRAME_SZ + TRACEREG_SZ;
+	childregs = (struct pt_regs *) (new_stack + STACKFRAME_SZ);
+
+	/*
+	 * A new process must start with interrupts disabled, see schedule_tail()
+	 * and finish_task_switch(). (If we do not do it and if a timer interrupt
+	 * hits before we unlock and attempts to take the rq->lock, we deadlock.)
+	 *
+	 * Thus, kpsr |= PSR_PIL.
+	 */
+	ti->ksp = (unsigned long) new_stack;
+	p->thread.kregs = childregs;
+
+	if (unlikely(args->fn)) {
+		extern int nwindows;
+		unsigned long psr;
+		memset(new_stack, 0, STACKFRAME_SZ + TRACEREG_SZ);
+		ti->kpc = (((unsigned long) ret_from_kernel_thread) - 0x8);
+		childregs->u_regs[UREG_G1] = (unsigned long) args->fn;
+		childregs->u_regs[UREG_G2] = (unsigned long) args->fn_arg;
+		psr = childregs->psr = get_psr();
+		ti->kpsr = psr | PSR_PIL;
+		ti->kwim = 1 << (((psr & PSR_CWP) + 1) % nwindows);
+		return 0;
+	}
+	memcpy(new_stack, (char *)regs - STACKFRAME_SZ, STACKFRAME_SZ + TRACEREG_SZ);
+	childregs->u_regs[UREG_FP] = sp;
+	ti->kpc = (((unsigned long) ret_from_fork) - 0x8);
+	ti->kpsr = current->thread.fork_kpsr | PSR_PIL;
+	ti->kwim = current->thread.fork_kwim;
+
+	if (sp != regs->u_regs[UREG_FP]) {
+		struct sparc_stackf __user *childstack;
+		struct sparc_stackf __user *parentstack;
+
+		/*
+		 * This is a clone() call with supplied user stack.
+		 * Set some valid stack frames to give to the child.
+		 */
+		childstack = (struct sparc_stackf __user *)
+			(sp & ~0xfUL);
+		parentstack = (struct sparc_stackf __user *)
+			regs->u_regs[UREG_FP];
+
+#if 0
+		printk("clone: parent stack:\n");
+		show_stackframe(parentstack);
+#endif
+
+		childstack = clone_stackframe(childstack, parentstack);
+		if (!childstack)
+			return -EFAULT;
+
+#if 0
+		printk("clone: child stack:\n");
+		show_stackframe(childstack);
+#endif
+
+		childregs->u_regs[UREG_FP] = (unsigned long)childstack;
+	}
+
+#ifdef CONFIG_SMP
+	/* FPU must be disabled on SMP. */
+	childregs->psr &= ~PSR_EF;
+	clear_tsk_thread_flag(p, TIF_USEDFPU);
+#endif
+
+	/* Set the return value for the child. */
+	childregs->u_regs[UREG_I0] = current->pid;
+	childregs->u_regs[UREG_I1] = 1;
+
+	/* Set the return value for the parent. */
+	regs->u_regs[UREG_I1] = 0;
+
+	if (clone_flags & CLONE_SETTLS)
+		childregs->u_regs[UREG_G7] = tls;
+
+	return 0;
+}
+
+unsigned long __get_wchan(struct task_struct *task)
+{
+	unsigned long pc, fp, bias = 0;
+	unsigned long task_base = (unsigned long) task;
+        unsigned long ret = 0;
+	struct reg_window32 *rw;
+	int count = 0;
+
+	fp = task_thread_info(task)->ksp + bias;
+	do {
+		/* Bogus frame pointer? */
+		if (fp < (task_base + sizeof(struct thread_info)) ||
+		    fp >= (task_base + (2 * PAGE_SIZE)))
+			break;
+		rw = (struct reg_window32 *) fp;
+		pc = rw->ins[7];
+		if (!in_sched_functions(pc)) {
+			ret = pc;
+			goto out;
+		}
+		fp = rw->ins[6] + bias;
+	} while (++count < 16);
+
+out:
+	return ret;
+}
+