Re: [PATCH] tracing/treewide: Remove second parameter of __assign_str()

Thomas Hellström
2024-05-17T09:33:57Z

On Thu, 2024-05-16 at 13:34 -0400, Steven Rostedt wrote:
> From: "Steven Rostedt (Google)" <rostedt@goodmis.org>
>
> [
>    This is a treewide change. I will likely re-create this patch
> again in
>    the second week of the merge window of v6.10 and submit it then.
> Hoping
>    to keep the conflicts that it will cause to a minimum.
> ]
>
> With the rework of how the __string() handles dynamic strings where
> it
> saves off the source string in field in the helper structure[1], the
> assignment of that value to the trace event field is stored in the
> helper
> value and does not need to be passed in again.
>
> This means that with:
>
>   __string(field, mystring)
>
> Which use to be assigned with __assign_str(field, mystring), no
> longer
> needs the second parameter and it is unused. With this,
> __assign_str()
> will now only get a single parameter.
>
> There's over 700 users of __assign_str() and because coccinelle does
> not
> handle the TRACE_EVENT() macro I ended up using the following sed
> script:
>
>   git grep -l __assign_str | while read a ; do
>       sed -e 's/\(__assign_str([^,]*[^ ,]\) *,[^;]*/\1)/' $a >
> /tmp/test-file;
>       mv /tmp/test-file $a;
>   done
>
> I then searched for __assign_str() that did not end with ';' as those
> were multi line assignments that the sed script above would fail to
> catch.
>
> Note, the same updates will need to be done for:
>
>   __assign_str_len()
>   __assign_rel_str()
>   __assign_rel_str_len()
>
> I tested this with both an allmodconfig and an allyesconfig (build
> only for both).
>
> [1]
> https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/
>
> Cc: Masami Hiramatsu <mhiramat@kernel.org>
> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Cc: Linus Torvalds <torvalds@linux-foundation.org>
> Cc: Julia Lawall <Julia.Lawall@inria.fr>
> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> #for
drivers/drm/xe

> ---
>  arch/arm64/kernel/trace-events-emulation.h    |   2 +-
>  arch/powerpc/include/asm/trace.h              |   4 +-
>  arch/x86/kvm/trace.h                          |   2 +-
>  drivers/base/regmap/trace.h                   |  18 +--
>  drivers/base/trace.h                          |   2 +-
>  drivers/block/rnbd/rnbd-srv-trace.h           |  12 +-
>  drivers/bus/mhi/host/trace.h                  |  12 +-
>  drivers/cxl/core/trace.h                      |  24 ++--
>  drivers/dma-buf/sync_trace.h                  |   2 +-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h     |  16 +--
>  .../amd/display/amdgpu_dm/amdgpu_dm_trace.h   |   2 +-
>  .../drm/i915/display/intel_display_trace.h    |  56 ++++-----
>  drivers/gpu/drm/lima/lima_trace.h             |   2 +-
>  drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h     |  12 +-
>  .../gpu/drm/scheduler/gpu_scheduler_trace.h   |   4 +-
>  drivers/gpu/drm/virtio/virtgpu_trace.h        |   2 +-
>  drivers/infiniband/core/cma_trace.h           |   4 +-
>  drivers/infiniband/hw/hfi1/hfi.h              |   2 +-
>  drivers/infiniband/hw/hfi1/trace_dbg.h        |   2 +-
>  drivers/infiniband/hw/hfi1/trace_rx.h         |   2 +-
>  drivers/infiniband/hw/hfi1/trace_tid.h        |   4 +-
>  drivers/infiniband/hw/hfi1/trace_tx.h         |   4 +-
>  drivers/infiniband/sw/rdmavt/trace.h          |   2 +-
>  drivers/infiniband/sw/rdmavt/trace_rvt.h      |   2 +-
>  drivers/interconnect/trace.h                  |  10 +-
>  drivers/iommu/intel/trace.h                   |   6 +-
>  .../media/platform/nvidia/tegra-vde/trace.h   |   2 +-
>  drivers/misc/mei/mei-trace.h                  |   6 +-
>  drivers/net/dsa/mv88e6xxx/trace.h             |   4 +-
>  .../ethernet/freescale/dpaa/dpaa_eth_trace.h  |   2 +-
>  .../freescale/dpaa2/dpaa2-eth-trace.h         |   4 +-
>  .../ethernet/fungible/funeth/funeth_trace.h   |   6 +-
>  .../net/ethernet/hisilicon/hns3/hns3_trace.h  |   4 +-
>  .../hisilicon/hns3/hns3pf/hclge_trace.h       |  12 +-
>  .../hisilicon/hns3/hns3vf/hclgevf_trace.h     |  10 +-
>  drivers/net/ethernet/intel/i40e/i40e_trace.h  |  10 +-
>  drivers/net/ethernet/intel/iavf/iavf_trace.h  |   6 +-
>  drivers/net/ethernet/intel/ice/ice_trace.h    |  12 +-
>  .../ethernet/marvell/octeontx2/af/rvu_trace.h |  12 +-
>  .../mellanox/mlx5/core/diag/cmd_tracepoint.h  |   4 +-
>  .../mlx5/core/diag/en_rep_tracepoint.h        |   2 +-
>  .../mlx5/core/diag/en_tc_tracepoint.h         |   2 +-
>  .../mlx5/core/diag/fw_tracer_tracepoint.h     |   5 +-
>  .../mlx5/core/esw/diag/qos_tracepoint.h       |   8 +-
>  .../mlx5/core/sf/dev/diag/dev_tracepoint.h    |   2 +-
>  .../mlx5/core/sf/diag/sf_tracepoint.h         |  14 +--
>  .../mlx5/core/sf/diag/vhca_tracepoint.h       |   2 +-
>  drivers/net/fjes/fjes_trace.h                 |  10 +-
>  drivers/net/hyperv/netvsc_trace.h             |   8 +-
>  drivers/net/wireless/ath/ath10k/trace.h       |  64 +++++-----
>  drivers/net/wireless/ath/ath11k/trace.h       |  44 +++----
>  drivers/net/wireless/ath/ath12k/trace.h       |  16 +--
>  drivers/net/wireless/ath/ath6kl/trace.h       |   4 +-
>  drivers/net/wireless/ath/trace.h              |   4 +-
>  .../broadcom/brcm80211/brcmfmac/tracepoint.h  |   4 +-
>  .../brcm80211/brcmsmac/brcms_trace_brcmsmac.h |   2 +-
>  .../brcmsmac/brcms_trace_brcmsmac_msg.h       |   2 +-
>  .../brcmsmac/brcms_trace_brcmsmac_tx.h        |   6 +-
>  .../wireless/intel/iwlwifi/iwl-devtrace-msg.h |   2 +-
>  .../net/wireless/intel/iwlwifi/iwl-devtrace.h |   2 +-
>  drivers/soc/qcom/pmic_pdcharger_ulog.h        |   2 +-
>  drivers/soc/qcom/trace-aoss.h                 |   4 +-
>  drivers/soc/qcom/trace-rpmh.h                 |   4 +-
>  drivers/thermal/thermal_trace.h               |  10 +-
>  drivers/usb/cdns3/cdns3-trace.h               |  26 ++--
>  drivers/usb/cdns3/cdnsp-trace.h               |  10 +-
>  drivers/usb/chipidea/trace.h                  |   4 +-
>  drivers/usb/dwc3/trace.h                      |   8 +-
>  drivers/usb/gadget/udc/cdns2/cdns2-trace.h    |  22 ++--
>  drivers/usb/gadget/udc/trace.h                |   4 +-
>  drivers/usb/mtu3/mtu3_trace.h                 |   8 +-
>  drivers/usb/musb/musb_trace.h                 |  12 +-
>  fs/bcachefs/trace.h                           |   6 +-
>  fs/nfs/nfs4trace.h                            |  42 +++----
>  fs/nfs/nfstrace.h                             |  41 +++---
>  fs/nfsd/trace.h                               |  40 +++---
>  fs/ocfs2/ocfs2_trace.h                        |  60 ++++-----
>  fs/smb/client/trace.h                         |  18 +--
>  fs/xfs/scrub/trace.h                          |  10 +-
>  fs/xfs/xfs_trace.h                            |  26 ++--
>  include/ras/ras_event.h                       |  12 +-
>  include/trace/events/asoc.h                   |  22 ++--
>  include/trace/events/avc.h                    |   6 +-
>  include/trace/events/bridge.h                 |  16 +--
>  include/trace/events/btrfs.h                  |   6 +-
>  include/trace/events/cgroup.h                 |  10 +-
>  include/trace/events/clk.h                    |  18 +--
>  include/trace/events/cma.h                    |   8 +-
>  include/trace/events/devfreq.h                |   4 +-
>  include/trace/events/devlink.h                |  50 ++++----
>  include/trace/events/dma_fence.h              |   4 +-
>  include/trace/events/erofs.h                  |   2 +-
>  include/trace/events/f2fs.h                   |  20 +--
>  include/trace/events/habanalabs.h             |  10 +-
>  include/trace/events/huge_memory.h            |   4 +-
>  include/trace/events/hwmon.h                  |   6 +-
>  include/trace/events/initcall.h               |   2 +-
>  include/trace/events/intel_ish.h              |   2 +-
>  include/trace/events/io_uring.h               |  14 +--
>  include/trace/events/iocost.h                 |  14 +--
>  include/trace/events/iommu.h                  |   8 +-
>  include/trace/events/irq.h                    |   2 +-
>  include/trace/events/iscsi.h                  |   2 +-
>  include/trace/events/kmem.h                   |   2 +-
>  include/trace/events/lock.h                   |   4 +-
>  include/trace/events/mmap_lock.h              |   4 +-
>  include/trace/events/mmc.h                    |   4 +-
>  include/trace/events/module.h                 |   8 +-
>  include/trace/events/napi.h                   |   2 +-
>  include/trace/events/neigh.h                  |   6 +-
>  include/trace/events/net.h                    |  12 +-
>  include/trace/events/netlink.h                |   2 +-
>  include/trace/events/oom.h                    |   2 +-
>  include/trace/events/osnoise.h                |   2 +-
>  include/trace/events/power.h                  |  23 ++--
>  include/trace/events/pwc.h                    |   4 +-
>  include/trace/events/qdisc.h                  |  12 +-
>  include/trace/events/qla.h                    |   2 +-
>  include/trace/events/qrtr.h                   |   2 +-
>  include/trace/events/regulator.h              |   6 +-
>  include/trace/events/rpcgss.h                 |  20 +--
>  include/trace/events/rpcrdma.h                |  52 ++++----
>  include/trace/events/rpm.h                    |   6 +-
>  include/trace/events/sched.h                  |   8 +-
>  include/trace/events/sof.h                    |  12 +-
>  include/trace/events/sof_intel.h              |  16 +--
>  include/trace/events/sunrpc.h                 | 118 +++++++++-------
> --
>  include/trace/events/swiotlb.h                |   2 +-
>  include/trace/events/target.h                 |   4 +-
>  include/trace/events/tegra_apb_dma.h          |   6 +-
>  include/trace/events/ufs.h                    |  24 ++--
>  include/trace/events/workqueue.h              |   2 +-
>  include/trace/events/xdp.h                    |   2 +-
>  include/trace/stages/stage6_event_callback.h  |   4 +-
>  kernel/trace/bpf_trace.h                      |   2 +-
>  net/batman-adv/trace.h                        |   4 +-
>  net/dsa/trace.h                               |  34 ++---
>  net/ieee802154/trace.h                        |   2 +-
>  net/mac80211/trace.h                          |   2 +-
>  net/openvswitch/openvswitch_trace.h           |   8 +-
>  net/smc/smc_tracepoint.h                      |   4 +-
>  net/tipc/trace.h                              |  16 +--
>  net/wireless/trace.h                          |   2 +-
>  samples/trace_events/trace-events-sample.h    |  19 +--
>  sound/core/pcm_trace.h                        |   2 +-
>  sound/hda/trace.h                             |   6 +-
>  sound/soc/intel/avs/trace.h                   |   4 +-
>  147 files changed, 785 insertions(+), 799 deletions(-)
>
> diff --git a/arch/arm64/kernel/trace-events-emulation.h
> b/arch/arm64/kernel/trace-events-emulation.h
> index 6c40f58b844a..c51b547b583e 100644
> --- a/arch/arm64/kernel/trace-events-emulation.h
> +++ b/arch/arm64/kernel/trace-events-emulation.h
> @@ -18,7 +18,7 @@ TRACE_EVENT(instruction_emulation,
>   ),
>
>   TP_fast_assign(
> - __assign_str(instr, instr);
> + __assign_str(instr);
>   __entry->addr = addr;
>   ),
>
> diff --git a/arch/powerpc/include/asm/trace.h
> b/arch/powerpc/include/asm/trace.h
> index d9ac3a4f46e1..a7b69b25296b 100644
> --- a/arch/powerpc/include/asm/trace.h
> +++ b/arch/powerpc/include/asm/trace.h
> @@ -137,7 +137,7 @@ TRACE_EVENT(rtas_input,
>
>   TP_fast_assign(
>   __entry->nargs = be32_to_cpu(rtas_args->nargs);
> - __assign_str(name, name);
> + __assign_str(name);
>   be32_to_cpu_array(__get_dynamic_array(inputs),
> rtas_args->args, __entry->nargs);
>   ),
>
> @@ -162,7 +162,7 @@ TRACE_EVENT(rtas_output,
>   TP_fast_assign(
>   __entry->nr_other = be32_to_cpu(rtas_args->nret) -
> 1;
>   __entry->status = be32_to_cpu(rtas_args->rets[0]);
> - __assign_str(name, name);
> + __assign_str(name);
>   be32_to_cpu_array(__get_dynamic_array(other_outputs)
> ,
>     &rtas_args->rets[1], __entry-
> >nr_other);
>   ),
> diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
> index c6b4b1728006..b6d52751dba8 100644
> --- a/arch/x86/kvm/trace.h
> +++ b/arch/x86/kvm/trace.h
> @@ -1678,7 +1678,7 @@ TRACE_EVENT(kvm_nested_vmenter_failed,
>   ),
>
>   TP_fast_assign(
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   __entry->err = err;
>   ),
>
> diff --git a/drivers/base/regmap/trace.h
> b/drivers/base/regmap/trace.h
> index 704e106e5dbd..bcc5a8b226a6 100644
> --- a/drivers/base/regmap/trace.h
> +++ b/drivers/base/regmap/trace.h
> @@ -27,7 +27,7 @@ DECLARE_EVENT_CLASS(regmap_reg,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, regmap_name(map));
> + __assign_str(name);
>   __entry->reg = reg;
>   __entry->val = val;
>   ),
> @@ -74,7 +74,7 @@ DECLARE_EVENT_CLASS(regmap_bulk,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, regmap_name(map));
> + __assign_str(name);
>   __entry->reg = reg;
>   __entry->val_len = val_len;
>   memcpy(__get_dynamic_array(buf), val, val_len);
> @@ -113,7 +113,7 @@ DECLARE_EVENT_CLASS(regmap_block,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, regmap_name(map));
> + __assign_str(name);
>   __entry->reg = reg;
>   __entry->count = count;
>   ),
> @@ -163,9 +163,9 @@ TRACE_EVENT(regcache_sync,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, regmap_name(map));
> - __assign_str(status, status);
> - __assign_str(type, type);
> + __assign_str(name);
> + __assign_str(status);
> + __assign_str(type);
>   ),
>
>   TP_printk("%s type=%s status=%s", __get_str(name),
> @@ -184,7 +184,7 @@ DECLARE_EVENT_CLASS(regmap_bool,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, regmap_name(map));
> + __assign_str(name);
>   __entry->flag = flag;
>   ),
>
> @@ -216,7 +216,7 @@ DECLARE_EVENT_CLASS(regmap_async,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, regmap_name(map));
> + __assign_str(name);
>   ),
>
>   TP_printk("%s", __get_str(name))
> @@ -264,7 +264,7 @@ TRACE_EVENT(regcache_drop_region,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, regmap_name(map));
> + __assign_str(name);
>   __entry->from = from;
>   __entry->to = to;
>   ),
> diff --git a/drivers/base/trace.h b/drivers/base/trace.h
> index 3192e18f877e..e52b6eae060d 100644
> --- a/drivers/base/trace.h
> +++ b/drivers/base/trace.h
> @@ -28,7 +28,7 @@ DECLARE_EVENT_CLASS(devres,
>   __field(size_t, size)
>   ),
>   TP_fast_assign(
> - __assign_str(devname, dev_name(dev));
> + __assign_str(devname);
>   __entry->op = op;
>   __entry->node = node;
>   __entry->name = name;
> diff --git a/drivers/block/rnbd/rnbd-srv-trace.h
> b/drivers/block/rnbd/rnbd-srv-trace.h
> index 8dedf73bdd28..89d0bcb17195 100644
> --- a/drivers/block/rnbd/rnbd-srv-trace.h
> +++ b/drivers/block/rnbd/rnbd-srv-trace.h
> @@ -27,7 +27,7 @@ DECLARE_EVENT_CLASS(rnbd_srv_link_class,
>
>   TP_fast_assign(
>   __entry->qdepth = srv->queue_depth;
> - __assign_str(sessname, srv->sessname);
> + __assign_str(sessname);
>   ),
>
>   TP_printk("sessname: %s qdepth: %d",
> @@ -85,7 +85,7 @@ TRACE_EVENT(process_rdma,
>   ),
>
>   TP_fast_assign(
> - __assign_str(sessname, srv->sessname);
> + __assign_str(sessname);
>   __entry->dir = id->dir;
>   __entry->ver = srv->ver;
>   __entry->device_id = le32_to_cpu(msg->device_id);
> @@ -130,7 +130,7 @@ TRACE_EVENT(process_msg_sess_info,
>   __entry->proto_ver = srv->ver;
>   __entry->clt_ver = msg->ver;
>   __entry->srv_ver = RNBD_PROTO_VER_MAJOR;
> - __assign_str(sessname, srv->sessname);
> + __assign_str(sessname);
>   ),
>
>   TP_printk("Session %s using proto-ver %d (clt-ver: %d, srv-
> ver: %d)",
> @@ -165,8 +165,8 @@ TRACE_EVENT(process_msg_open,
>
>   TP_fast_assign(
>   __entry->access_mode = msg->access_mode;
> - __assign_str(sessname, srv->sessname);
> - __assign_str(dev_name, msg->dev_name);
> + __assign_str(sessname);
> + __assign_str(dev_name);
>   ),
>
>   TP_printk("Open message received: session='%s' path='%s'
> access_mode=%s",
> @@ -189,7 +189,7 @@ TRACE_EVENT(process_msg_close,
>
>   TP_fast_assign(
>   __entry->device_id = le32_to_cpu(msg->device_id);
> - __assign_str(sessname, srv->sessname);
> + __assign_str(sessname);
>   ),
>
>   TP_printk("Close message received: session='%s' device
> id='%d'",
> diff --git a/drivers/bus/mhi/host/trace.h
> b/drivers/bus/mhi/host/trace.h
> index 368515dcb22d..95613c8ebe06 100644
> --- a/drivers/bus/mhi/host/trace.h
> +++ b/drivers/bus/mhi/host/trace.h
> @@ -103,7 +103,7 @@ TRACE_EVENT(mhi_gen_tre,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __assign_str(name);
>   __entry->ch_num = mhi_chan->chan;
>   __entry->wp = mhi_tre;
>   __entry->tre_ptr = mhi_tre->ptr;
> @@ -131,7 +131,7 @@ TRACE_EVENT(mhi_intvec_states,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __assign_str(name);
>   __entry->local_ee = mhi_cntrl->ee;
>   __entry->state = mhi_cntrl->dev_state;
>   __entry->dev_ee = dev_ee;
> @@ -158,7 +158,7 @@ TRACE_EVENT(mhi_tryset_pm_state,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __assign_str(name);
>   if (pm_state)
>   pm_state = __fls(pm_state);
>   __entry->pm_state = pm_state;
> @@ -184,7 +184,7 @@ DECLARE_EVENT_CLASS(mhi_process_event_ring,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __assign_str(name);
>   __entry->rp = rp;
>   __entry->ptr = rp->ptr;
>   __entry->dword0 = rp->dword[0];
> @@ -226,7 +226,7 @@ DECLARE_EVENT_CLASS(mhi_update_channel_state,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __assign_str(name);
>   __entry->ch_num = mhi_chan->chan;
>   __entry->state = state;
>   __entry->reason = reason;
> @@ -265,7 +265,7 @@ TRACE_EVENT(mhi_pm_st_transition,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, mhi_cntrl->mhi_dev->name);
> + __assign_str(name);
>   __entry->state = state;
>   ),
>
> diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h
> index e5f13260fc52..fdd05e938c59 100644
> --- a/drivers/cxl/core/trace.h
> +++ b/drivers/cxl/core/trace.h
> @@ -60,8 +60,8 @@ TRACE_EVENT(cxl_aer_uncorrectable_error,
>   __array(u32, header_log, CXL_HEADERLOG_SIZE_U32)
>   ),
>   TP_fast_assign(
> - __assign_str(memdev, dev_name(&cxlmd->dev));
> - __assign_str(host, dev_name(cxlmd->dev.parent));
> + __assign_str(memdev);
> + __assign_str(host);
>   __entry->serial = cxlmd->cxlds->serial;
>   __entry->status = status;
>   __entry->first_error = fe;
> @@ -106,8 +106,8 @@ TRACE_EVENT(cxl_aer_correctable_error,
>   __field(u32, status)
>   ),
>   TP_fast_assign(
> - __assign_str(memdev, dev_name(&cxlmd->dev));
> - __assign_str(host, dev_name(cxlmd->dev.parent));
> + __assign_str(memdev);
> + __assign_str(host);
>   __entry->serial = cxlmd->cxlds->serial;
>   __entry->status = status;
>   ),
> @@ -142,8 +142,8 @@ TRACE_EVENT(cxl_overflow,
>   ),
>
>   TP_fast_assign(
> - __assign_str(memdev, dev_name(&cxlmd->dev));
> - __assign_str(host, dev_name(cxlmd->dev.parent));
> + __assign_str(memdev);
> + __assign_str(host);
>   __entry->serial = cxlmd->cxlds->serial;
>   __entry->log = log;
>   __entry->count = le16_to_cpu(payload-
> >overflow_err_count);
> @@ -200,8 +200,8 @@ TRACE_EVENT(cxl_overflow,
>   __field(u8, hdr_maint_op_class)
>
>  #define CXL_EVT_TP_fast_assign(cxlmd, l,
> hdr) \
> - __assign_str(memdev, dev_name(&(cxlmd)-
> >dev)); \
> - __assign_str(host, dev_name((cxlmd)-
> >dev.parent)); \
> + __assign_str(memdev); \
> + __assign_str(host); \
>   __entry->log =
> (l); \
>   __entry->serial = (cxlmd)->cxlds-
> >serial; \
>   __entry->hdr_length =
> (hdr).length; \
> @@ -668,8 +668,8 @@ TRACE_EVENT(cxl_poison,
>       ),
>
>   TP_fast_assign(
> - __assign_str(memdev, dev_name(&cxlmd->dev));
> - __assign_str(host, dev_name(cxlmd->dev.parent));
> + __assign_str(memdev);
> + __assign_str(host);
>   __entry->serial = cxlmd->cxlds->serial;
>   __entry->overflow_ts = cxl_poison_overflow(flags,
> overflow_ts);
>   __entry->dpa = cxl_poison_record_dpa(record);
> @@ -678,12 +678,12 @@ TRACE_EVENT(cxl_poison,
>   __entry->trace_type = trace_type;
>   __entry->flags = flags;
>   if (cxlr) {
> - __assign_str(region, dev_name(&cxlr->dev));
> + __assign_str(region);
>   memcpy(__entry->uuid, &cxlr->params.uuid,
> 16);
>   __entry->hpa = cxl_trace_hpa(cxlr, cxlmd,
>        __entry->dpa);
>   } else {
> - __assign_str(region, "");
> + __assign_str(region);
>   memset(__entry->uuid, 0, 16);
>   __entry->hpa = ULLONG_MAX;
>   }
> diff --git a/drivers/dma-buf/sync_trace.h b/drivers/dma-
> buf/sync_trace.h
> index 06e468a218ff..d71dcf954b8d 100644
> --- a/drivers/dma-buf/sync_trace.h
> +++ b/drivers/dma-buf/sync_trace.h
> @@ -20,7 +20,7 @@ TRACE_EVENT(sync_timeline,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, timeline->name);
> + __assign_str(name);
>   __entry->value = timeline->value;
>   ),
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
> index f539b1d00234..7aafeb763e5d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
> @@ -178,10 +178,10 @@ TRACE_EVENT(amdgpu_cs_ioctl,
>
>       TP_fast_assign(
>      __entry->sched_job_id = job->base.id;
> -    __assign_str(timeline,
> AMDGPU_JOB_GET_TIMELINE_NAME(job));
> +    __assign_str(timeline);
>      __entry->context = job->base.s_fence-
> >finished.context;
>      __entry->seqno = job->base.s_fence-
> >finished.seqno;
> -    __assign_str(ring, to_amdgpu_ring(job-
> >base.sched)->name);
> +    __assign_str(ring);
>      __entry->num_ibs = job->num_ibs;
>      ),
>       TP_printk("sched_job=%llu, timeline=%s, context=%u,
> seqno=%u, ring_name=%s, num_ibs=%u",
> @@ -203,10 +203,10 @@ TRACE_EVENT(amdgpu_sched_run_job,
>
>       TP_fast_assign(
>      __entry->sched_job_id = job->base.id;
> -    __assign_str(timeline,
> AMDGPU_JOB_GET_TIMELINE_NAME(job));
> +    __assign_str(timeline);
>      __entry->context = job->base.s_fence-
> >finished.context;
>      __entry->seqno = job->base.s_fence-
> >finished.seqno;
> -    __assign_str(ring, to_amdgpu_ring(job-
> >base.sched)->name);
> +    __assign_str(ring);
>      __entry->num_ibs = job->num_ibs;
>      ),
>       TP_printk("sched_job=%llu, timeline=%s, context=%u,
> seqno=%u, ring_name=%s, num_ibs=%u",
> @@ -231,7 +231,7 @@ TRACE_EVENT(amdgpu_vm_grab_id,
>
>       TP_fast_assign(
>      __entry->pasid = vm->pasid;
> -    __assign_str(ring, ring->name);
> +    __assign_str(ring);
>      __entry->vmid = job->vmid;
>      __entry->vm_hub = ring->vm_hub,
>      __entry->pd_addr = job->vm_pd_addr;
> @@ -425,7 +425,7 @@ TRACE_EVENT(amdgpu_vm_flush,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(ring, ring->name);
> +    __assign_str(ring);
>      __entry->vmid = vmid;
>      __entry->vm_hub = ring->vm_hub;
>      __entry->pd_addr = pd_addr;
> @@ -526,7 +526,7 @@ TRACE_EVENT(amdgpu_ib_pipe_sync,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(ring, sched_job->base.sched-
> >name);
> +    __assign_str(ring);
>      __entry->id = sched_job->base.id;
>      __entry->fence = fence;
>      __entry->ctx = fence->context;
> @@ -563,7 +563,7 @@ TRACE_EVENT(amdgpu_runpm_reference_dumps,
>        ),
>       TP_fast_assign(
>      __entry->index = index;
> -    __assign_str(func, func);
> +    __assign_str(func);
>      ),
>       TP_printk("amdgpu runpm reference dump 0x%x: 0x%s\n",
>         __entry->index,
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
> index 133af994a08c..4686d4b0cbad 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
> @@ -87,7 +87,7 @@ TRACE_EVENT(amdgpu_dc_performance,
>   __entry->writes = write_count;
>   __entry->read_delta = read_count -
> *last_read;
>   __entry->write_delta = write_count -
> *last_write;
> - __assign_str(func, func);
> + __assign_str(func);
>   __entry->line = line;
>   *last_read = read_count;
>   *last_write = write_count;
> diff --git a/drivers/gpu/drm/i915/display/intel_display_trace.h
> b/drivers/gpu/drm/i915/display/intel_display_trace.h
> index 7862e7cefe02..49a5e6d9dc0d 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_trace.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_trace.h
> @@ -34,7 +34,7 @@ TRACE_EVENT(intel_pipe_enable,
>       TP_fast_assign(
>      struct drm_i915_private *dev_priv =
> to_i915(crtc->base.dev);
>      struct intel_crtc *it__;
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      for_each_intel_crtc(&dev_priv->drm, it__)
> {
>      __entry->frame[it__->pipe] =
> intel_crtc_get_vblank_counter(it__);
>      __entry->scanline[it__->pipe] =
> intel_get_crtc_scanline(it__);
> @@ -63,7 +63,7 @@ TRACE_EVENT(intel_pipe_disable,
>       TP_fast_assign(
>      struct drm_i915_private *dev_priv =
> to_i915(crtc->base.dev);
>      struct intel_crtc *it__;
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      for_each_intel_crtc(&dev_priv->drm, it__)
> {
>      __entry->frame[it__->pipe] =
> intel_crtc_get_vblank_counter(it__);
>      __entry->scanline[it__->pipe] =
> intel_get_crtc_scanline(it__);
> @@ -91,7 +91,7 @@ TRACE_EVENT(intel_pipe_crc,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -119,7 +119,7 @@ TRACE_EVENT(intel_cpu_fifo_underrun,
>
>       TP_fast_assign(
>       struct intel_crtc *crtc =
> intel_crtc_for_pipe(dev_priv, pipe);
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -144,7 +144,7 @@ TRACE_EVENT(intel_pch_fifo_underrun,
>       TP_fast_assign(
>      enum pipe pipe = pch_transcoder;
>      struct intel_crtc *crtc =
> intel_crtc_for_pipe(dev_priv, pipe);
> -    __assign_str(dev,
> __dev_name_i915(dev_priv));
> +    __assign_str(dev);
>      __entry->pipe = pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -169,7 +169,7 @@ TRACE_EVENT(intel_memory_cxsr,
>
>       TP_fast_assign(
>      struct intel_crtc *crtc;
> -    __assign_str(dev,
> __dev_name_i915(dev_priv));
> +    __assign_str(dev);
>      for_each_intel_crtc(&dev_priv->drm, crtc)
> {
>      __entry->frame[crtc->pipe] =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline[crtc->pipe] =
> intel_get_crtc_scanline(crtc);
> @@ -209,7 +209,7 @@ TRACE_EVENT(g4x_wm,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -256,7 +256,7 @@ TRACE_EVENT(vlv_wm,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -293,7 +293,7 @@ TRACE_EVENT(vlv_fifo_size,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -323,8 +323,8 @@ TRACE_EVENT(intel_plane_update_noarm,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(plane));
> -    __assign_str(name, plane->base.name);
> +    __assign_str(dev);
> +    __assign_str(name);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -354,8 +354,8 @@ TRACE_EVENT(intel_plane_update_arm,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(plane));
> -    __assign_str(name, plane->base.name);
> +    __assign_str(dev);
> +    __assign_str(name);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -383,8 +383,8 @@ TRACE_EVENT(intel_plane_disable_arm,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(plane));
> -    __assign_str(name, plane->base.name);
> +    __assign_str(dev);
> +    __assign_str(name);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -410,8 +410,8 @@ TRACE_EVENT(intel_fbc_activate,
>       TP_fast_assign(
>      struct intel_crtc *crtc =
> intel_crtc_for_pipe(to_i915(plane->base.dev),
>
> plane->pipe);
> -    __assign_str(dev, __dev_name_kms(plane));
> -    __assign_str(name, plane->base.name);
> +    __assign_str(dev);
> +    __assign_str(name);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -437,8 +437,8 @@ TRACE_EVENT(intel_fbc_deactivate,
>       TP_fast_assign(
>      struct intel_crtc *crtc =
> intel_crtc_for_pipe(to_i915(plane->base.dev),
>
> plane->pipe);
> -    __assign_str(dev, __dev_name_kms(plane));
> -    __assign_str(name, plane->base.name);
> +    __assign_str(dev);
> +    __assign_str(name);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -464,8 +464,8 @@ TRACE_EVENT(intel_fbc_nuke,
>       TP_fast_assign(
>      struct intel_crtc *crtc =
> intel_crtc_for_pipe(to_i915(plane->base.dev),
>
> plane->pipe);
> -    __assign_str(dev, __dev_name_kms(plane));
> -    __assign_str(name, plane->base.name);
> +    __assign_str(dev);
> +    __assign_str(name);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -488,7 +488,7 @@ TRACE_EVENT(intel_crtc_vblank_work_start,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -511,7 +511,7 @@ TRACE_EVENT(intel_crtc_vblank_work_end,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -536,7 +536,7 @@ TRACE_EVENT(intel_pipe_update_start,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame =
> intel_crtc_get_vblank_counter(crtc);
>      __entry->scanline =
> intel_get_crtc_scanline(crtc);
> @@ -564,7 +564,7 @@ TRACE_EVENT(intel_pipe_update_vblank_evaded,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame = crtc-
> >debug.start_vbl_count;
>      __entry->scanline = crtc-
> >debug.scanline_start;
> @@ -590,7 +590,7 @@ TRACE_EVENT(intel_pipe_update_end,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_kms(crtc));
> +    __assign_str(dev);
>      __entry->pipe = crtc->pipe;
>      __entry->frame = frame;
>      __entry->scanline = scanline_end;
> @@ -613,7 +613,7 @@ TRACE_EVENT(intel_frontbuffer_invalidate,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_i915(i915));
> +    __assign_str(dev);
>      __entry->frontbuffer_bits =
> frontbuffer_bits;
>      __entry->origin = origin;
>      ),
> @@ -634,7 +634,7 @@ TRACE_EVENT(intel_frontbuffer_flush,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(dev, __dev_name_i915(i915));
> +    __assign_str(dev);
>      __entry->frontbuffer_bits =
> frontbuffer_bits;
>      __entry->origin = origin;
>      ),
> diff --git a/drivers/gpu/drm/lima/lima_trace.h
> b/drivers/gpu/drm/lima/lima_trace.h
> index 494b9790b1da..3a349d10304e 100644
> --- a/drivers/gpu/drm/lima/lima_trace.h
> +++ b/drivers/gpu/drm/lima/lima_trace.h
> @@ -24,7 +24,7 @@ DECLARE_EVENT_CLASS(lima_task,
>   __entry->task_id = task->base.id;
>   __entry->context = task->base.s_fence-
> >finished.context;
>   __entry->seqno = task->base.s_fence->finished.seqno;
> - __assign_str(pipe, task->base.sched->name);
> + __assign_str(pipe);
>   ),
>
>   TP_printk("task=%llu, context=%u seqno=%u pipe=%s",
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> index bd92fb2979aa..0fdd41162e4b 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
> @@ -113,7 +113,7 @@ TRACE_EVENT(tracing_mark_write,
>   ),
>   TP_fast_assign(
>   __entry->pid = pid;
> - __assign_str(trace_name, name);
> + __assign_str(trace_name);
>   __entry->trace_begin = trace_begin;
>   ),
>   TP_printk("%s|%d|%s", __entry->trace_begin ? "B" : "E",
> @@ -130,7 +130,7 @@ TRACE_EVENT(dpu_trace_counter,
>   ),
>   TP_fast_assign(
>   __entry->pid = current->tgid;
> - __assign_str(counter_name, name);
> + __assign_str(counter_name);
>   __entry->value = value;
>   ),
>   TP_printk("%d|%s|%d", __entry->pid,
> @@ -379,7 +379,7 @@ TRACE_EVENT(dpu_enc_rc,
>   __entry->sw_event = sw_event;
>   __entry->idle_pc_supported = idle_pc_supported;
>   __entry->rc_state = rc_state;
> - __assign_str(stage_str, stage);
> + __assign_str(stage_str);
>   ),
>   TP_printk("%s: id:%u, sw_event:%d, idle_pc_supported:%s,
> rc_state:%d",
>     __get_str(stage_str), __entry->drm_id, __entry-
> >sw_event,
> @@ -401,7 +401,7 @@ TRACE_EVENT(dpu_enc_frame_done_cb_not_busy,
>   TP_fast_assign(
>   __entry->drm_id = drm_id;
>   __entry->event = event;
> - __assign_str(intf_mode_str, intf_mode);
> + __assign_str(intf_mode_str);
>   __entry->intf_idx = intf_idx;
>   __entry->wb_idx = wb_idx;
>   ),
> @@ -446,7 +446,7 @@ TRACE_EVENT(dpu_enc_trigger_flush,
>   ),
>   TP_fast_assign(
>   __entry->drm_id = drm_id;
> - __assign_str(intf_mode_str, intf_mode);
> + __assign_str(intf_mode_str);
>   __entry->intf_idx = intf_idx;
>   __entry->wb_idx = wb_idx;
>   __entry->pending_kickoff_cnt = pending_kickoff_cnt;
> @@ -946,7 +946,7 @@ TRACE_EVENT(dpu_core_perf_update_clk,
>   __field( u64, clk_rate
> )
>   ),
>   TP_fast_assign(
> - __assign_str(dev_name, dev->unique);
> + __assign_str(dev_name);
>   __entry->stop_req = stop_req;
>   __entry->clk_rate = clk_rate;
>   ),
> diff --git a/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
> b/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
> index f8ed093b7356..c75302ca3427 100644
> --- a/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
> +++ b/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
> @@ -48,7 +48,7 @@ DECLARE_EVENT_CLASS(drm_sched_job,
>      __entry->entity = entity;
>      __entry->id = sched_job->id;
>      __entry->fence = &sched_job->s_fence-
> >finished;
> -    __assign_str(name, sched_job->sched-
> >name);
> +    __assign_str(name);
>      __entry->job_count =
> spsc_queue_count(&entity->job_queue);
>      __entry->hw_job_count = atomic_read(
>      &sched_job->sched->credit_count);
> @@ -94,7 +94,7 @@ TRACE_EVENT(drm_sched_job_wait_dep,
>        ),
>
>       TP_fast_assign(
> -    __assign_str(name, sched_job->sched-
> >name);
> +    __assign_str(name);
>      __entry->id = sched_job->id;
>      __entry->fence = fence;
>      __entry->ctx = fence->context;
> diff --git a/drivers/gpu/drm/virtio/virtgpu_trace.h
> b/drivers/gpu/drm/virtio/virtgpu_trace.h
> index 031bc77689d5..227bf0ae7ed5 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_trace.h
> +++ b/drivers/gpu/drm/virtio/virtgpu_trace.h
> @@ -25,7 +25,7 @@ DECLARE_EVENT_CLASS(virtio_gpu_cmd,
>   TP_fast_assign(
>          __entry->dev = vq->vdev->index;
>          __entry->vq = vq->index;
> -        __assign_str(name, vq->name);
> +        __assign_str(name);
>          __entry->type = le32_to_cpu(hdr->type);
>          __entry->flags = le32_to_cpu(hdr->flags);
>          __entry->fence_id = le64_to_cpu(hdr-
> >fence_id);
> diff --git a/drivers/infiniband/core/cma_trace.h
> b/drivers/infiniband/core/cma_trace.h
> index 47f3c6e4be89..dc622f3778be 100644
> --- a/drivers/infiniband/core/cma_trace.h
> +++ b/drivers/infiniband/core/cma_trace.h
> @@ -84,7 +84,7 @@ TRACE_EVENT(cm_id_attach,
>          sizeof(struct sockaddr_in6));
>   memcpy(__entry->dstaddr, &id_priv-
> >id.route.addr.dst_addr,
>          sizeof(struct sockaddr_in6));
> - __assign_str(devname, device->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk("cm.id=%u src=%pISpc dst=%pISpc device=%s",
> @@ -334,7 +334,7 @@ DECLARE_EVENT_CLASS(cma_client_class,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, device->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("device name=%s",
> diff --git a/drivers/infiniband/hw/hfi1/hfi.h
> b/drivers/infiniband/hw/hfi1/hfi.h
> index 4b3f1cb125fc..eb38f81aeeb1 100644
> --- a/drivers/infiniband/hw/hfi1/hfi.h
> +++ b/drivers/infiniband/hw/hfi1/hfi.h
> @@ -2425,7 +2425,7 @@ static inline bool hfi1_need_drop(struct
> hfi1_devdata *dd)
>  int hfi1_tempsense_rd(struct hfi1_devdata *dd, struct hfi1_temp
> *temp);
>
>  #define DD_DEV_ENTRY(dd)       __string(dev, dev_name(&(dd)->pcidev-
> >dev))
> -#define DD_DEV_ASSIGN(dd)      __assign_str(dev, dev_name(&(dd)-
> >pcidev->dev))
> +#define DD_DEV_ASSIGN(dd)      __assign_str(dev)
>
>  static inline void hfi1_update_ah_attr(struct ib_device *ibdev,
>          struct rdma_ah_attr *attr)
> diff --git a/drivers/infiniband/hw/hfi1/trace_dbg.h
> b/drivers/infiniband/hw/hfi1/trace_dbg.h
> index 75599d5168db..58304b91380f 100644
> --- a/drivers/infiniband/hw/hfi1/trace_dbg.h
> +++ b/drivers/infiniband/hw/hfi1/trace_dbg.h
> @@ -33,7 +33,7 @@ DECLARE_EVENT_CLASS(hfi1_trace_template,
>       TP_STRUCT__entry(__string(function, function)
>        __vstring(msg, vaf->fmt, vaf-
> >va)
>        ),
> -     TP_fast_assign(__assign_str(function, function);
> +     TP_fast_assign(__assign_str(function);
>      __assign_vstr(msg, vaf->fmt, vaf-
> >va);
>      ),
>       TP_printk("(%s) %s",
> diff --git a/drivers/infiniband/hw/hfi1/trace_rx.h
> b/drivers/infiniband/hw/hfi1/trace_rx.h
> index e6904aa80c00..8d5e12fe88a5 100644
> --- a/drivers/infiniband/hw/hfi1/trace_rx.h
> +++ b/drivers/infiniband/hw/hfi1/trace_rx.h
> @@ -90,7 +90,7 @@ TRACE_EVENT(hfi1_mmu_invalidate,
>       TP_fast_assign(
>   __entry->ctxt = ctxt;
>   __entry->subctxt = subctxt;
> - __assign_str(type, type);
> + __assign_str(type);
>   __entry->start = start;
>   __entry->end = end;
>       ),
> diff --git a/drivers/infiniband/hw/hfi1/trace_tid.h
> b/drivers/infiniband/hw/hfi1/trace_tid.h
> index d129b8195959..e358f5b885fa 100644
> --- a/drivers/infiniband/hw/hfi1/trace_tid.h
> +++ b/drivers/infiniband/hw/hfi1/trace_tid.h
> @@ -358,7 +358,7 @@ DECLARE_EVENT_CLASS(/* msg */
>   ),
>   TP_fast_assign(/* assign */
>   __entry->qpn = qp ? qp->ibqp.qp_num : 0;
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   __entry->more = more;
>   ),
>   TP_printk(/* print */
> @@ -651,7 +651,7 @@ DECLARE_EVENT_CLASS(/* tid_node */
>   TP_fast_assign(/* assign */
>   DD_DEV_ASSIGN(dd_from_ibdev(qp->ibqp.device));
>   __entry->qpn = qp->ibqp.qp_num;
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   __entry->index = index;
>   __entry->base = base;
>   __entry->map = map;
> diff --git a/drivers/infiniband/hw/hfi1/trace_tx.h
> b/drivers/infiniband/hw/hfi1/trace_tx.h
> index c79856d4fdfb..c0ba6b0a2c4e 100644
> --- a/drivers/infiniband/hw/hfi1/trace_tx.h
> +++ b/drivers/infiniband/hw/hfi1/trace_tx.h
> @@ -740,8 +740,8 @@ TRACE_EVENT(hfi1_sdma_state,
>   __string(newstate, nstate)
>       ),
>       TP_fast_assign(DD_DEV_ASSIGN(sde->dd);
> - __assign_str(curstate, cstate);
> - __assign_str(newstate, nstate);
> + __assign_str(curstate);
> + __assign_str(newstate);
>       ),
>       TP_printk("[%s] current state %s new state %s",
>         __get_str(dev),
> diff --git a/drivers/infiniband/sw/rdmavt/trace.h
> b/drivers/infiniband/sw/rdmavt/trace.h
> index 4341965a5ea7..bdb6b9326b64 100644
> --- a/drivers/infiniband/sw/rdmavt/trace.h
> +++ b/drivers/infiniband/sw/rdmavt/trace.h
> @@ -4,7 +4,7 @@
>   */
>
>  #define RDI_DEV_ENTRY(rdi)   __string(dev, rvt_get_ibdev_name(rdi))
> -#define RDI_DEV_ASSIGN(rdi)  __assign_str(dev,
> rvt_get_ibdev_name(rdi))
> +#define RDI_DEV_ASSIGN(rdi)  __assign_str(dev)
>
>  #include "trace_rvt.h"
>  #include "trace_qp.h"
> diff --git a/drivers/infiniband/sw/rdmavt/trace_rvt.h
> b/drivers/infiniband/sw/rdmavt/trace_rvt.h
> index df33c2ca9710..a00489e66ddf 100644
> --- a/drivers/infiniband/sw/rdmavt/trace_rvt.h
> +++ b/drivers/infiniband/sw/rdmavt/trace_rvt.h
> @@ -24,7 +24,7 @@ TRACE_EVENT(rvt_dbg,
>   ),
>   TP_fast_assign(
>   RDI_DEV_ASSIGN(rdi);
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   ),
>   TP_printk("[%s]: %s", __get_str(dev), __get_str(msg))
>  );
> diff --git a/drivers/interconnect/trace.h
> b/drivers/interconnect/trace.h
> index 3d668ff566bf..206373546528 100644
> --- a/drivers/interconnect/trace.h
> +++ b/drivers/interconnect/trace.h
> @@ -32,9 +32,9 @@ TRACE_EVENT(icc_set_bw,
>   ),
>
>   TP_fast_assign(
> - __assign_str(path_name, p->name);
> - __assign_str(dev, dev_name(p->reqs[i].dev));
> - __assign_str(node_name, n->name);
> + __assign_str(path_name);
> + __assign_str(dev);
> + __assign_str(node_name);
>   __entry->avg_bw = avg_bw;
>   __entry->peak_bw = peak_bw;
>   __entry->node_avg_bw = n->avg_bw;
> @@ -64,8 +64,8 @@ TRACE_EVENT(icc_set_bw_end,
>   ),
>
>   TP_fast_assign(
> - __assign_str(path_name, p->name);
> - __assign_str(dev, dev_name(p->reqs[0].dev));
> + __assign_str(path_name);
> + __assign_str(dev);
>   __entry->ret = ret;
>   ),
>
> diff --git a/drivers/iommu/intel/trace.h
> b/drivers/iommu/intel/trace.h
> index 93d96f93a89b..3fa48ff9d4e0 100644
> --- a/drivers/iommu/intel/trace.h
> +++ b/drivers/iommu/intel/trace.h
> @@ -32,7 +32,7 @@ TRACE_EVENT(qi_submit,
>   ),
>
>   TP_fast_assign(
> - __assign_str(iommu, iommu->name);
> + __assign_str(iommu);
>   __entry->qw0 = qw0;
>   __entry->qw1 = qw1;
>   __entry->qw2 = qw2;
> @@ -79,8 +79,8 @@ TRACE_EVENT(prq_report,
>   __entry->dw2 = dw2;
>   __entry->dw3 = dw3;
>   __entry->seq = seq;
> - __assign_str(iommu, iommu->name);
> - __assign_str(dev, dev_name(dev));
> + __assign_str(iommu);
> + __assign_str(dev);
>   ),
>
>   TP_printk("%s/%s seq# %ld: %s",
> diff --git a/drivers/media/platform/nvidia/tegra-vde/trace.h
> b/drivers/media/platform/nvidia/tegra-vde/trace.h
> index 7853ab095ca4..e8a75a7bd05d 100644
> --- a/drivers/media/platform/nvidia/tegra-vde/trace.h
> +++ b/drivers/media/platform/nvidia/tegra-vde/trace.h
> @@ -20,7 +20,7 @@ DECLARE_EVENT_CLASS(register_access,
>   __field(u32, value)
>   ),
>   TP_fast_assign(
> - __assign_str(hw_name, tegra_vde_reg_base_name(vde,
> base));
> + __assign_str(hw_name);
>   __entry->offset = offset;
>   __entry->value = value;
>   ),
> diff --git a/drivers/misc/mei/mei-trace.h b/drivers/misc/mei/mei-
> trace.h
> index fe46ff2b9d69..5312edbf5190 100644
> --- a/drivers/misc/mei/mei-trace.h
> +++ b/drivers/misc/mei/mei-trace.h
> @@ -26,7 +26,7 @@ TRACE_EVENT(mei_reg_read,
>   __field(u32, val)
>   ),
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dev));
> + __assign_str(dev);
>   __entry->reg  = reg;
>   __entry->offs = offs;
>   __entry->val = val;
> @@ -45,7 +45,7 @@ TRACE_EVENT(mei_reg_write,
>   __field(u32, val)
>   ),
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dev));
> + __assign_str(dev);
>   __entry->reg = reg;
>   __entry->offs = offs;
>   __entry->val = val;
> @@ -64,7 +64,7 @@ TRACE_EVENT(mei_pci_cfg_read,
>   __field(u32, val)
>   ),
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dev));
> + __assign_str(dev);
>   __entry->reg  = reg;
>   __entry->offs = offs;
>   __entry->val = val;
> diff --git a/drivers/net/dsa/mv88e6xxx/trace.h
> b/drivers/net/dsa/mv88e6xxx/trace.h
> index f59ca04768e7..5bd015b2b97a 100644
> --- a/drivers/net/dsa/mv88e6xxx/trace.h
> +++ b/drivers/net/dsa/mv88e6xxx/trace.h
> @@ -28,7 +28,7 @@ DECLARE_EVENT_CLASS(mv88e6xxx_atu_violation,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, dev_name(dev));
> + __assign_str(name);
>   __entry->spid = spid;
>   __entry->portvec = portvec;
>   memcpy(__entry->addr, addr, ETH_ALEN);
> @@ -68,7 +68,7 @@ DECLARE_EVENT_CLASS(mv88e6xxx_vtu_violation,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, dev_name(dev));
> + __assign_str(name);
>   __entry->spid = spid;
>   __entry->vid = vid;
>   ),
> diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h
> b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h
> index 889f89df9930..6f0e58a2a58a 100644
> --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h
> +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth_trace.h
> @@ -57,7 +57,7 @@ DECLARE_EVENT_CLASS(dpaa_eth_fd,
>   __entry->fd_offset = qm_fd_get_offset(fd);
>   __entry->fd_length = qm_fd_get_length(fd);
>   __entry->fd_status = fd->status;
> - __assign_str(name, netdev->name);
> + __assign_str(name);
>   ),
>
>   /* This is what gets printed when the trace event is
> triggered */
> diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h
> b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h
> index 9b43fadb9b11..956767e0869c 100644
> --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h
> +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h
> @@ -48,7 +48,7 @@ DECLARE_EVENT_CLASS(dpaa2_eth_fd,
>      __entry->fd_addr =
> dpaa2_fd_get_addr(fd);
>      __entry->fd_len =
> dpaa2_fd_get_len(fd);
>      __entry->fd_offset =
> dpaa2_fd_get_offset(fd);
> -    __assign_str(name, netdev->name);
> +    __assign_str(name);
>       ),
>
>       /* This is what gets printed when the trace
> event is
> @@ -144,7 +144,7 @@ DECLARE_EVENT_CLASS(dpaa2_eth_buf,
>      __entry->dma_addr = dma_addr;
>      __entry->map_size = map_size;
>      __entry->bpid = bpid;
> -    __assign_str(name, netdev->name);
> +    __assign_str(name);
>       ),
>
>       /* This is what gets printed when the trace
> event is
> diff --git a/drivers/net/ethernet/fungible/funeth/funeth_trace.h
> b/drivers/net/ethernet/fungible/funeth/funeth_trace.h
> index 9e58dfec19d5..b9985900f30b 100644
> --- a/drivers/net/ethernet/fungible/funeth/funeth_trace.h
> +++ b/drivers/net/ethernet/fungible/funeth/funeth_trace.h
> @@ -32,7 +32,7 @@ TRACE_EVENT(funeth_tx,
>   __entry->len = len;
>   __entry->sqe_idx = sqe_idx;
>   __entry->ngle = ngle;
> - __assign_str(devname, txq->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk("%s: Txq %u, SQE idx %u, len %u, num GLEs %u",
> @@ -62,7 +62,7 @@ TRACE_EVENT(funeth_tx_free,
>   __entry->sqe_idx = sqe_idx;
>   __entry->num_sqes = num_sqes;
>   __entry->hw_head = hw_head;
> - __assign_str(devname, txq->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk("%s: Txq %u, SQE idx %u, SQEs %u, HW head %u",
> @@ -97,7 +97,7 @@ TRACE_EVENT(funeth_rx,
>   __entry->len = pkt_len;
>   __entry->hash = hash;
>   __entry->cls_vec = cls_vec;
> - __assign_str(devname, rxq->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk("%s: Rxq %u, CQ head %u, RQEs %u, len %u, hash %u,
> CV %#x",
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_trace.h
> b/drivers/net/ethernet/hisilicon/hns3/hns3_trace.h
> index b8a1ecb4b8fb..3362b8d14d4f 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3_trace.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_trace.h
> @@ -84,7 +84,7 @@ TRACE_EVENT(hns3_tx_desc,
>   __entry->desc_dma = ring->desc_dma_addr,
>   memcpy(__entry->desc, &ring->desc[cur_ntu],
>          sizeof(struct hns3_desc));
> - __assign_str(devname, ring->tqp->handle-
> >kinfo.netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk(
> @@ -117,7 +117,7 @@ TRACE_EVENT(hns3_rx_desc,
>   __entry->buf_dma = ring->desc_cb[ring-
> >next_to_clean].dma;
>   memcpy(__entry->desc, &ring->desc[ring-
> >next_to_clean],
>          sizeof(struct hns3_desc));
> - __assign_str(devname, ring->tqp->handle-
> >kinfo.netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk(
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_trace.h
> b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_trace.h
> index 7e47f0c21d88..7103cf04bffc 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_trace.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_trace.h
> @@ -33,8 +33,8 @@ TRACE_EVENT(hclge_pf_mbx_get,
>   __entry->vfid = req->mbx_src_vfid;
>   __entry->code = req->msg.code;
>   __entry->subcode = req->msg.subcode;
> - __assign_str(pciname, pci_name(hdev->pdev));
> - __assign_str(devname, hdev-
> >vport[0].nic.kinfo.netdev->name);
> + __assign_str(pciname);
> + __assign_str(devname);
>   memcpy(__entry->mbx_data, req,
>          sizeof(struct hclge_mbx_vf_to_pf_cmd));
>   ),
> @@ -64,8 +64,8 @@ TRACE_EVENT(hclge_pf_mbx_send,
>   TP_fast_assign(
>   __entry->vfid = req->dest_vfid;
>   __entry->code = le16_to_cpu(req->msg.code);
> - __assign_str(pciname, pci_name(hdev->pdev));
> - __assign_str(devname, hdev-
> >vport[0].nic.kinfo.netdev->name);
> + __assign_str(pciname);
> + __assign_str(devname);
>   memcpy(__entry->mbx_data, req,
>          sizeof(struct hclge_mbx_pf_to_vf_cmd));
>   ),
> @@ -101,7 +101,7 @@ DECLARE_EVENT_CLASS(hclge_pf_cmd_template,
>   __entry->rsv = le16_to_cpu(desc->rsv);
>   __entry->index = index;
>   __entry->num = num;
> - __assign_str(pciname, pci_name(hw-
> >cmq.csq.pdev));
> + __assign_str(pciname);
>   for (i = 0; i < HCLGE_DESC_DATA_LEN; i++)
>   __entry->data[i] = le32_to_cpu(desc-
> >data[i]);),
>
> @@ -144,7 +144,7 @@
> DECLARE_EVENT_CLASS(hclge_pf_special_cmd_template,
>       TP_fast_assign(int i;
>   __entry->index = index;
>   __entry->num = num;
> - __assign_str(pciname, pci_name(hw-
> >cmq.csq.pdev));
> + __assign_str(pciname);
>   for (i = 0; i < PF_DESC_LEN; i++)
>   __entry->data[i] =
> le32_to_cpu(data[i]);
>   ),
> diff --git
> a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_trace.h
> b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_trace.h
> index e2e3a2602b6a..66b084309c91 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_trace.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_trace.h
> @@ -30,8 +30,8 @@ TRACE_EVENT(hclge_vf_mbx_get,
>   TP_fast_assign(
>   __entry->vfid = req->dest_vfid;
>   __entry->code = le16_to_cpu(req->msg.code);
> - __assign_str(pciname, pci_name(hdev->pdev));
> - __assign_str(devname, hdev->nic.kinfo.netdev->name);
> + __assign_str(pciname);
> + __assign_str(devname);
>   memcpy(__entry->mbx_data, req,
>          sizeof(struct hclge_mbx_pf_to_vf_cmd));
>   ),
> @@ -63,8 +63,8 @@ TRACE_EVENT(hclge_vf_mbx_send,
>   __entry->vfid = req->mbx_src_vfid;
>   __entry->code = req->msg.code;
>   __entry->subcode = req->msg.subcode;
> - __assign_str(pciname, pci_name(hdev->pdev));
> - __assign_str(devname, hdev->nic.kinfo.netdev->name);
> + __assign_str(pciname);
> + __assign_str(devname);
>   memcpy(__entry->mbx_data, req,
>          sizeof(struct hclge_mbx_vf_to_pf_cmd));
>   ),
> @@ -101,7 +101,7 @@ DECLARE_EVENT_CLASS(hclge_vf_cmd_template,
>   __entry->rsv = le16_to_cpu(desc->rsv);
>   __entry->index = index;
>   __entry->num = num;
> - __assign_str(pciname, pci_name(hw-
> >cmq.csq.pdev));
> + __assign_str(pciname);
>   for (i = 0; i < HCLGE_DESC_DATA_LEN; i++)
>   __entry->data[i] = le32_to_cpu(desc-
> >data[i]);),
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_trace.h
> b/drivers/net/ethernet/intel/i40e/i40e_trace.h
> index 33b4e30f5e00..759f3d1c4c8f 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_trace.h
> +++ b/drivers/net/ethernet/intel/i40e/i40e_trace.h
> @@ -89,8 +89,8 @@ TRACE_EVENT(i40e_napi_poll,
>   __entry->tx_clean_complete = tx_clean_complete;
>   __entry->irq_num = q->irq_num;
>   __entry->curr_cpu = get_cpu();
> - __assign_str(qname, q->name);
> - __assign_str(dev_name, napi->dev ? napi->dev->name :
> NO_DEV);
> + __assign_str(qname);
> + __assign_str(dev_name);
>   __assign_bitmask(irq_affinity, cpumask_bits(&q-
> >affinity_mask),
>   nr_cpumask_bits);
>   ),
> @@ -132,7 +132,7 @@ DECLARE_EVENT_CLASS(
>   __entry->ring = ring;
>   __entry->desc = desc;
>   __entry->buf = buf;
> - __assign_str(devname, ring->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk(
> @@ -177,7 +177,7 @@ DECLARE_EVENT_CLASS(
>   __entry->ring = ring;
>   __entry->desc = desc;
>   __entry->xdp = xdp;
> - __assign_str(devname, ring->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk(
> @@ -219,7 +219,7 @@ DECLARE_EVENT_CLASS(
>   TP_fast_assign(
>   __entry->skb = skb;
>   __entry->ring = ring;
> - __assign_str(devname, ring->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk(
> diff --git a/drivers/net/ethernet/intel/iavf/iavf_trace.h
> b/drivers/net/ethernet/intel/iavf/iavf_trace.h
> index 82fda6f5abf0..62212011c807 100644
> --- a/drivers/net/ethernet/intel/iavf/iavf_trace.h
> +++ b/drivers/net/ethernet/intel/iavf/iavf_trace.h
> @@ -83,7 +83,7 @@ DECLARE_EVENT_CLASS(
>   __entry->ring = ring;
>   __entry->desc = desc;
>   __entry->buf = buf;
> - __assign_str(devname, ring->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk(
> @@ -128,7 +128,7 @@ DECLARE_EVENT_CLASS(
>   __entry->ring = ring;
>   __entry->desc = desc;
>   __entry->skb = skb;
> - __assign_str(devname, ring->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk(
> @@ -170,7 +170,7 @@ DECLARE_EVENT_CLASS(
>   TP_fast_assign(
>   __entry->skb = skb;
>   __entry->ring = ring;
> - __assign_str(devname, ring->netdev->name);
> + __assign_str(devname);
>   ),
>
>   TP_printk(
> diff --git a/drivers/net/ethernet/intel/ice/ice_trace.h
> b/drivers/net/ethernet/intel/ice/ice_trace.h
> index b2f5c9fe0149..244cddd2a9ea 100644
> --- a/drivers/net/ethernet/intel/ice/ice_trace.h
> +++ b/drivers/net/ethernet/intel/ice/ice_trace.h
> @@ -69,7 +69,7 @@ DECLARE_EVENT_CLASS(ice_rx_dim_template,
>
>       TP_fast_assign(__entry->q_vector = q_vector;
>      __entry->dim = dim;
> -    __assign_str(devname, q_vector-
> >rx.rx_ring->netdev->name);),
> +    __assign_str(devname);),
>
>       TP_printk("netdev: %s Rx-Q: %d dim-state: %d
> dim-profile: %d dim-tune: %d dim-st-right: %d dim-st-left: %d dim-
> tired: %d",
>         __get_str(devname),
> @@ -96,7 +96,7 @@ DECLARE_EVENT_CLASS(ice_tx_dim_template,
>
>       TP_fast_assign(__entry->q_vector = q_vector;
>      __entry->dim = dim;
> -    __assign_str(devname, q_vector-
> >tx.tx_ring->netdev->name);),
> +    __assign_str(devname);),
>
>       TP_printk("netdev: %s Tx-Q: %d dim-state: %d
> dim-profile: %d dim-tune: %d dim-st-right: %d dim-st-left: %d dim-
> tired: %d",
>         __get_str(devname),
> @@ -128,7 +128,7 @@ DECLARE_EVENT_CLASS(ice_tx_template,
>       TP_fast_assign(__entry->ring = ring;
>      __entry->desc = desc;
>      __entry->buf = buf;
> -    __assign_str(devname, ring-
> >netdev->name);),
> +    __assign_str(devname);),
>
>       TP_printk("netdev: %s ring: %pK desc: %pK buf
> %pK", __get_str(devname),
>         __entry->ring, __entry->desc, __entry-
> >buf)
> @@ -156,7 +156,7 @@ DECLARE_EVENT_CLASS(ice_rx_template,
>
>       TP_fast_assign(__entry->ring = ring;
>      __entry->desc = desc;
> -    __assign_str(devname, ring-
> >netdev->name);),
> +    __assign_str(devname);),
>
>       TP_printk("netdev: %s ring: %pK desc: %pK",
> __get_str(devname),
>         __entry->ring, __entry->desc)
> @@ -180,7 +180,7 @@ DECLARE_EVENT_CLASS(ice_rx_indicate_template,
>       TP_fast_assign(__entry->ring = ring;
>      __entry->desc = desc;
>      __entry->skb = skb;
> -    __assign_str(devname, ring-
> >netdev->name);),
> +    __assign_str(devname);),
>
>       TP_printk("netdev: %s ring: %pK desc: %pK skb
> %pK", __get_str(devname),
>         __entry->ring, __entry->desc, __entry-
> >skb)
> @@ -203,7 +203,7 @@ DECLARE_EVENT_CLASS(ice_xmit_template,
>
>       TP_fast_assign(__entry->ring = ring;
>      __entry->skb = skb;
> -    __assign_str(devname, ring-
> >netdev->name);),
> +    __assign_str(devname);),
>
>       TP_printk("netdev: %s skb: %pK ring: %pK",
> __get_str(devname),
>         __entry->skb, __entry->ring)
> diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.h
> b/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.h
> index 28984d0e848a..5704520f9b02 100644
> --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.h
> +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.h
> @@ -24,7 +24,7 @@ TRACE_EVENT(otx2_msg_alloc,
>        __field(u16, id)
>        __field(u64, size)
>       ),
> -     TP_fast_assign(__assign_str(dev, pci_name(pdev));
> +     TP_fast_assign(__assign_str(dev);
>      __entry->id = id;
>      __entry->size = size;
>       ),
> @@ -39,7 +39,7 @@ TRACE_EVENT(otx2_msg_send,
>        __field(u16, num_msgs)
>        __field(u64, msg_size)
>       ),
> -     TP_fast_assign(__assign_str(dev, pci_name(pdev));
> +     TP_fast_assign(__assign_str(dev);
>      __entry->num_msgs = num_msgs;
>      __entry->msg_size = msg_size;
>       ),
> @@ -55,7 +55,7 @@ TRACE_EVENT(otx2_msg_check,
>        __field(u16, rspid)
>        __field(int, rc)
>       ),
> -     TP_fast_assign(__assign_str(dev, pci_name(pdev));
> +     TP_fast_assign(__assign_str(dev);
>      __entry->reqid = reqid;
>      __entry->rspid = rspid;
>      __entry->rc = rc;
> @@ -72,8 +72,8 @@ TRACE_EVENT(otx2_msg_interrupt,
>        __string(str, msg)
>        __field(u64, intr)
>       ),
> -     TP_fast_assign(__assign_str(dev, pci_name(pdev));
> -    __assign_str(str, msg);
> +     TP_fast_assign(__assign_str(dev);
> +    __assign_str(str);
>      __entry->intr = intr;
>       ),
>       TP_printk("[%s] mbox interrupt %s (0x%llx)\n",
> __get_str(dev),
> @@ -87,7 +87,7 @@ TRACE_EVENT(otx2_msg_process,
>        __field(u16, id)
>        __field(int, err)
>       ),
> -     TP_fast_assign(__assign_str(dev, pci_name(pdev));
> +     TP_fast_assign(__assign_str(dev);
>      __entry->id = id;
>      __entry->err = err;
>       ),
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/diag/cmd_tracepoint.h
> b/drivers/net/ethernet/mellanox/mlx5/core/diag/cmd_tracepoint.h
> index 406ebe17405f..b4b3a43e56a0 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/cmd_tracepoint.h
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/cmd_tracepoint.h
> @@ -22,10 +22,10 @@ TRACE_EVENT(mlx5_cmd,
>       __field(u32, syndrome)
>       __field(int, err)
>       ),
> -     TP_fast_assign(__assign_str(command_str, command_str);
> +     TP_fast_assign(__assign_str(command_str);
>   __entry->opcode = opcode;
>   __entry->op_mod = op_mod;
> - __assign_str(status_str, status_str);
> + __assign_str(status_str);
>   __entry->status = status;
>   __entry->syndrome = syndrome;
>   __entry->err = err;
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h
> b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h
> index f15718db5d0e..78e481b2c015 100644
> ---
> a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h
> +++
> b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_rep_tracepoint.h
> @@ -25,7 +25,7 @@ TRACE_EVENT(mlx5e_rep_neigh_update,
>   struct in6_addr *pin6;
>   __be32 *p32;
>
> - __assign_str(devname, nhe->neigh_dev->name);
> + __assign_str(devname);
>   __entry->neigh_connected = neigh_connected;
>   memcpy(__entry->ha, ha, ETH_ALEN);
>
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h
> b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h
> index ac52ef37f38a..4b1ca228012b 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/en_tc_tracepoint.h
> @@ -86,7 +86,7 @@ TRACE_EVENT(mlx5e_tc_update_neigh_used_value,
>   struct in6_addr *pin6;
>   __be32 *p32;
>
> - __assign_str(devname, nhe->neigh_dev->name);
> + __assign_str(devname);
>   __entry->neigh_used = neigh_used;
>
>   p32 = (__be32 *)__entry->v4;
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer_tracepoint.h
> b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer_tracepoint.h
> index 3038be575923..50f8a7630f86 100644
> ---
> a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer_tracepoint.h
> +++
> b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer_tracepoint.h
> @@ -55,12 +55,11 @@ TRACE_EVENT(mlx5_fw,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name,
> -      dev_name(tracer->dev->device));
> + __assign_str(dev_name);
>   __entry->trace_timestamp = trace_timestamp;
>   __entry->lost = lost;
>   __entry->event_id = event_id;
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   ),
>
>   TP_printk("%s [0x%llx] %d [0x%x] %s",
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
> b/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
> index 458baf0c6415..1ce332f21ebe 100644
> ---
> a/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
> +++
> b/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
> @@ -17,7 +17,7 @@ TRACE_EVENT(mlx5_esw_vport_qos_destroy,
>        __field(unsigned short, vport_id)
>        __field(unsigned int,   tsar_ix)
>        ),
> -     TP_fast_assign(__assign_str(devname, dev_name(vport-
> >dev->device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->vport_id = vport->vport;
>       __entry->tsar_ix = vport->qos.esw_tsar_ix;
>       ),
> @@ -36,7 +36,7 @@ DECLARE_EVENT_CLASS(mlx5_esw_vport_qos_template,
>        __field(unsigned int, max_rate)
>        __field(void *, group)
>        ),
> -     TP_fast_assign(__assign_str(devname,
> dev_name(vport->dev->device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->vport_id = vport->vport;
>       __entry->tsar_ix = vport-
> >qos.esw_tsar_ix;
>       __entry->bw_share = bw_share;
> @@ -68,7 +68,7 @@ DECLARE_EVENT_CLASS(mlx5_esw_group_qos_template,
>        __field(const void *, group)
>        __field(unsigned int, tsar_ix)
>        ),
> -     TP_fast_assign(__assign_str(devname,
> dev_name(dev->device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->group = group;
>       __entry->tsar_ix = tsar_ix;
>       ),
> @@ -102,7 +102,7 @@ TRACE_EVENT(mlx5_esw_group_qos_config,
>        __field(unsigned int, bw_share)
>        __field(unsigned int, max_rate)
>        ),
> -     TP_fast_assign(__assign_str(devname, dev_name(dev-
> >device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->group = group;
>       __entry->tsar_ix = tsar_ix;
>       __entry->bw_share = bw_share;
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.
> h
> b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.
> h
> index 7f7c9af5deed..0537de86f981 100644
> ---
> a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.
> h
> +++
> b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.
> h
> @@ -22,7 +22,7 @@ DECLARE_EVENT_CLASS(mlx5_sf_dev_template,
>        __field(u16, hw_fn_id)
>        __field(u32, sfnum)
>       ),
> -     TP_fast_assign(__assign_str(devname,
> dev_name(dev->device));
> +     TP_fast_assign(__assign_str(devname);
>      __entry->sfdev = sfdev;
>      __entry->aux_id = aux_id;
>      __entry->hw_fn_id = sfdev->fn_id;
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/sf_tracepoint.h
> b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/sf_tracepoint.h
> index 8bf1cd90930d..302ce00da5a9 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/sf_tracepoint.h
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/sf_tracepoint.h
> @@ -24,7 +24,7 @@ TRACE_EVENT(mlx5_sf_add,
>        __field(u16, hw_fn_id)
>        __field(u32, sfnum)
>       ),
> -     TP_fast_assign(__assign_str(devname, dev_name(dev-
> >device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->port_index = port_index;
>       __entry->controller = controller;
>       __entry->hw_fn_id = hw_fn_id;
> @@ -46,7 +46,7 @@ TRACE_EVENT(mlx5_sf_free,
>        __field(u32, controller)
>        __field(u16, hw_fn_id)
>       ),
> -     TP_fast_assign(__assign_str(devname, dev_name(dev-
> >device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->port_index = port_index;
>       __entry->controller = controller;
>       __entry->hw_fn_id = hw_fn_id;
> @@ -67,7 +67,7 @@ TRACE_EVENT(mlx5_sf_hwc_alloc,
>        __field(u16, hw_fn_id)
>        __field(u32, sfnum)
>       ),
> -     TP_fast_assign(__assign_str(devname, dev_name(dev-
> >device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->controller = controller;
>       __entry->hw_fn_id = hw_fn_id;
>       __entry->sfnum = sfnum;
> @@ -84,7 +84,7 @@ TRACE_EVENT(mlx5_sf_hwc_free,
>       TP_STRUCT__entry(__string(devname, dev_name(dev-
> >device))
>        __field(u16, hw_fn_id)
>       ),
> -     TP_fast_assign(__assign_str(devname, dev_name(dev-
> >device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->hw_fn_id = hw_fn_id;
>       ),
>       TP_printk("(%s) hw_id=0x%x\n", __get_str(devname),
> __entry->hw_fn_id)
> @@ -97,7 +97,7 @@ TRACE_EVENT(mlx5_sf_hwc_deferred_free,
>       TP_STRUCT__entry(__string(devname, dev_name(dev-
> >device))
>        __field(u16, hw_fn_id)
>       ),
> -     TP_fast_assign(__assign_str(devname, dev_name(dev-
> >device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->hw_fn_id = hw_fn_id;
>       ),
>       TP_printk("(%s) hw_id=0x%x\n", __get_str(devname),
> __entry->hw_fn_id)
> @@ -113,7 +113,7 @@ DECLARE_EVENT_CLASS(mlx5_sf_state_template,
>        __field(unsigned int,
> port_index)
>        __field(u32, controller)
>        __field(u16, hw_fn_id)),
> -     TP_fast_assign(__assign_str(devname,
> dev_name(dev->device));
> +     TP_fast_assign(__assign_str(devname);
>      __entry->port_index = port_index;
>      __entry->controller = controller;
>      __entry->hw_fn_id = hw_fn_id;
> @@ -152,7 +152,7 @@ TRACE_EVENT(mlx5_sf_update_state,
>        __field(u16, hw_fn_id)
>        __field(u8, state)
>       ),
> -     TP_fast_assign(__assign_str(devname, dev_name(dev-
> >device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->port_index = port_index;
>       __entry->controller = controller;
>       __entry->hw_fn_id = hw_fn_id;
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h
> b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h
> index fd814a190b8b..6352cb004a18 100644
> ---
> a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h
> +++
> b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h
> @@ -20,7 +20,7 @@ TRACE_EVENT(mlx5_sf_vhca_event,
>        __field(u32, sfnum)
>        __field(u8, vhca_state)
>       ),
> -     TP_fast_assign(__assign_str(devname, dev_name(dev-
> >device));
> +     TP_fast_assign(__assign_str(devname);
>       __entry->hw_fn_id = event->function_id;
>       __entry->sfnum = event->sw_function_id;
>       __entry->vhca_state = event->new_vhca_state;
> diff --git a/drivers/net/fjes/fjes_trace.h
> b/drivers/net/fjes/fjes_trace.h
> index 6437ddbd7842..166ef015262b 100644
> --- a/drivers/net/fjes/fjes_trace.h
> +++ b/drivers/net/fjes/fjes_trace.h
> @@ -85,7 +85,7 @@ TRACE_EVENT(fjes_hw_request_info_err,
>   __string(err, err)
>   ),
>   TP_fast_assign(
> - __assign_str(err, err);
> + __assign_str(err);
>   ),
>   TP_printk("%s", __get_str(err))
>  );
> @@ -145,7 +145,7 @@ TRACE_EVENT(fjes_hw_register_buff_addr_err,
>   __string(err, err)
>   ),
>   TP_fast_assign(
> - __assign_str(err, err);
> + __assign_str(err);
>   ),
>   TP_printk("%s", __get_str(err))
>  );
> @@ -189,7 +189,7 @@ TRACE_EVENT(fjes_hw_unregister_buff_addr_err,
>   __string(err, err)
>   ),
>   TP_fast_assign(
> - __assign_str(err, err);
> + __assign_str(err);
>   ),
>   TP_printk("%s", __get_str(err))
>  );
> @@ -232,7 +232,7 @@ TRACE_EVENT(fjes_hw_start_debug_err,
>   __string(err, err)
>   ),
>   TP_fast_assign(
> - __assign_str(err, err);
> + __assign_str(err);
>   ),
>   TP_printk("%s", __get_str(err))
>  );
> @@ -258,7 +258,7 @@ TRACE_EVENT(fjes_hw_stop_debug_err,
>   __string(err, err)
>   ),
>   TP_fast_assign(
> - __assign_str(err, err);
> + __assign_str(err);
>   ),
>   TP_printk("%s", __get_str(err))
>  );
> diff --git a/drivers/net/hyperv/netvsc_trace.h
> b/drivers/net/hyperv/netvsc_trace.h
> index f7585563dea5..05e620cbdd29 100644
> --- a/drivers/net/hyperv/netvsc_trace.h
> +++ b/drivers/net/hyperv/netvsc_trace.h
> @@ -51,7 +51,7 @@ DECLARE_EVENT_CLASS(rndis_msg_class,
>          __field( u32,  msg_len    )
>         ),
>         TP_fast_assign(
> -        __assign_str(name, ndev->name);
> +        __assign_str(name);
>          __entry->queue = q;
>          __entry->req_id = msg->msg.init_req.req_id;
>          __entry->msg_type = msg->ndis_msg_type;
> @@ -121,7 +121,7 @@ TRACE_EVENT(nvsp_send,
>   __field(  u32, msg_type    )
>   ),
>   TP_fast_assign(
> - __assign_str(name, ndev->name);
> + __assign_str(name);
>   __entry->msg_type = msg->hdr.msg_type;
>   ),
>   TP_printk("dev=%s type=%s",
> @@ -142,7 +142,7 @@ TRACE_EVENT(nvsp_send_pkt,
>   __field(  u32, section_size  )
>   ),
>   TP_fast_assign(
> - __assign_str(name, ndev->name);
> + __assign_str(name);
>   __entry->qid = chan-
> >offermsg.offer.sub_channel_index;
>   __entry->channel_type = rpkt->channel_type;
>   __entry->section_index = rpkt-
> >send_buf_section_index;
> @@ -165,7 +165,7 @@ TRACE_EVENT(nvsp_recv,
>   __field(  u32, msg_type    )
>   ),
>   TP_fast_assign(
> - __assign_str(name, ndev->name);
> + __assign_str(name);
>   __entry->qid = chan-
> >offermsg.offer.sub_channel_index;
>   __entry->msg_type = msg->hdr.msg_type;
>   ),
> diff --git a/drivers/net/wireless/ath/ath10k/trace.h
> b/drivers/net/wireless/ath/ath10k/trace.h
> index 64e7a767d963..68b78ca17eaa 100644
> --- a/drivers/net/wireless/ath/ath10k/trace.h
> +++ b/drivers/net/wireless/ath/ath10k/trace.h
> @@ -55,8 +55,8 @@ DECLARE_EVENT_CLASS(ath10k_log_event,
>   __vstring(msg, vaf->fmt, vaf->va)
>   ),
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk(
> @@ -92,8 +92,8 @@ TRACE_EVENT(ath10k_log_dbg,
>   __vstring(msg, vaf->fmt, vaf->va)
>   ),
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->level = level;
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
> @@ -121,10 +121,10 @@ TRACE_EVENT(ath10k_log_dbg_dump,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> - __assign_str(msg, msg);
> - __assign_str(prefix, prefix);
> + __assign_str(device);
> + __assign_str(driver);
> + __assign_str(msg);
> + __assign_str(prefix);
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
>   ),
> @@ -152,8 +152,8 @@ TRACE_EVENT(ath10k_wmi_cmd,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->id = id;
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
> @@ -182,8 +182,8 @@ TRACE_EVENT(ath10k_wmi_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->id = id;
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
> @@ -211,8 +211,8 @@ TRACE_EVENT(ath10k_htt_stats,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
>   ),
> @@ -239,8 +239,8 @@ TRACE_EVENT(ath10k_wmi_dbglog,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->hw_type = ar->hw_rev;
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
> @@ -269,8 +269,8 @@ TRACE_EVENT(ath10k_htt_pktlog,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->hw_type = ar->hw_rev;
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(pktlog), buf, buf_len);
> @@ -301,8 +301,8 @@ TRACE_EVENT(ath10k_htt_tx,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->msdu_id = msdu_id;
>   __entry->msdu_len = msdu_len;
>   __entry->vdev_id = vdev_id;
> @@ -332,8 +332,8 @@ TRACE_EVENT(ath10k_txrx_tx_unref,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->msdu_id = msdu_id;
>   ),
>
> @@ -358,8 +358,8 @@ DECLARE_EVENT_CLASS(ath10k_hdr_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = ath10k_frm_hdr_len(data, len);
>   memcpy(__get_dynamic_array(data), data, __entry-
> >len);
>   ),
> @@ -386,8 +386,8 @@ DECLARE_EVENT_CLASS(ath10k_payload_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = len - ath10k_frm_hdr_len(data, len);
>   memcpy(__get_dynamic_array(payload),
>          data + ath10k_frm_hdr_len(data, len),
> __entry->len);
> @@ -435,8 +435,8 @@ TRACE_EVENT(ath10k_htt_rx_desc,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->hw_type = ar->hw_rev;
>   __entry->len = len;
>   memcpy(__get_dynamic_array(rxdesc), data, len);
> @@ -472,8 +472,8 @@ TRACE_EVENT(ath10k_wmi_diag_container,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->type = type;
>   __entry->timestamp = timestamp;
>   __entry->code = code;
> @@ -505,8 +505,8 @@ TRACE_EVENT(ath10k_wmi_diag,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->dev));
> - __assign_str(driver, dev_driver_string(ar->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = len;
>   memcpy(__get_dynamic_array(data), data, len);
>   ),
> diff --git a/drivers/net/wireless/ath/ath11k/trace.h
> b/drivers/net/wireless/ath/ath11k/trace.h
> index 235ab8ea715f..75246b0a82e3 100644
> --- a/drivers/net/wireless/ath/ath11k/trace.h
> +++ b/drivers/net/wireless/ath/ath11k/trace.h
> @@ -48,8 +48,8 @@ TRACE_EVENT(ath11k_htt_pktlog,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->ab->dev));
> - __assign_str(driver, dev_driver_string(ar->ab-
> >dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->buf_len = buf_len;
>   __entry->pktlog_checksum = pktlog_checksum;
>   memcpy(__get_dynamic_array(pktlog), buf, buf_len);
> @@ -77,8 +77,8 @@ TRACE_EVENT(ath11k_htt_ppdu_stats,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->ab->dev));
> - __assign_str(driver, dev_driver_string(ar->ab-
> >dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = len;
>   memcpy(__get_dynamic_array(ppdu), data, len);
>   ),
> @@ -105,8 +105,8 @@ TRACE_EVENT(ath11k_htt_rxdesc,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->ab->dev));
> - __assign_str(driver, dev_driver_string(ar->ab-
> >dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = len;
>   __entry->log_type = log_type;
>   memcpy(__get_dynamic_array(rxdesc), data, len);
> @@ -130,8 +130,8 @@ DECLARE_EVENT_CLASS(ath11k_log_event,
>   __vstring(msg, vaf->fmt, vaf->va)
>   ),
>   TP_fast_assign(
> - __assign_str(device, dev_name(ab->dev));
> - __assign_str(driver, dev_driver_string(ab->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk(
> @@ -171,8 +171,8 @@ TRACE_EVENT(ath11k_wmi_cmd,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ab->dev));
> - __assign_str(driver, dev_driver_string(ab->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->id = id;
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
> @@ -201,8 +201,8 @@ TRACE_EVENT(ath11k_wmi_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ab->dev));
> - __assign_str(driver, dev_driver_string(ab->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->id = id;
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
> @@ -230,8 +230,8 @@ TRACE_EVENT(ath11k_log_dbg,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ab->dev));
> - __assign_str(driver, dev_driver_string(ab->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->level = level;
>   WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
>          ATH11K_MSG_MAX, vaf->fmt,
> @@ -262,10 +262,10 @@ TRACE_EVENT(ath11k_log_dbg_dump,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ab->dev));
> - __assign_str(driver, dev_driver_string(ab->dev));
> - __assign_str(msg, msg);
> - __assign_str(prefix, prefix);
> + __assign_str(device);
> + __assign_str(driver);
> + __assign_str(msg);
> + __assign_str(prefix);
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
>   ),
> @@ -292,8 +292,8 @@ TRACE_EVENT(ath11k_wmi_diag,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ab->dev));
> - __assign_str(driver, dev_driver_string(ab->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = len;
>   memcpy(__get_dynamic_array(data), data, len);
>   ),
> @@ -318,8 +318,8 @@ TRACE_EVENT(ath11k_ps_timekeeper,
>   __field(u32, peer_ps_timestamp)
>   ),
>
> - TP_fast_assign(__assign_str(device, dev_name(ar->ab->dev));
> -        __assign_str(driver, dev_driver_string(ar-
> >ab->dev));
> + TP_fast_assign(__assign_str(device);
> +        __assign_str(driver);
>          memcpy(__get_dynamic_array(peer_addr),
> peer_addr,
>         ETH_ALEN);
>          __entry->peer_ps_state = peer_ps_state;
> diff --git a/drivers/net/wireless/ath/ath12k/trace.h
> b/drivers/net/wireless/ath/ath12k/trace.h
> index 240737e1542d..253c67accb0e 100644
> --- a/drivers/net/wireless/ath/ath12k/trace.h
> +++ b/drivers/net/wireless/ath/ath12k/trace.h
> @@ -36,8 +36,8 @@ TRACE_EVENT(ath12k_htt_pktlog,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->ab->dev));
> - __assign_str(driver, dev_driver_string(ar->ab-
> >dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->buf_len = buf_len;
>   __entry->pktlog_checksum = pktlog_checksum;
>   memcpy(__get_dynamic_array(pktlog), buf, buf_len);
> @@ -73,8 +73,8 @@ TRACE_EVENT(ath12k_htt_ppdu_stats,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->ab->dev));
> - __assign_str(driver, dev_driver_string(ar->ab-
> >dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = len;
>   __entry->info = ar->pdev->timestamp.info;
>   __entry->sync_tstmp_lo_us = ar->pdev-
> >timestamp.sync_timestamp_hi_us;
> @@ -117,8 +117,8 @@ TRACE_EVENT(ath12k_htt_rxdesc,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ar->ab->dev));
> - __assign_str(driver, dev_driver_string(ar->ab-
> >dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = len;
>   __entry->type = type;
>   __entry->info = ar->pdev->timestamp.info;
> @@ -153,8 +153,8 @@ TRACE_EVENT(ath12k_wmi_diag,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(ab->dev));
> - __assign_str(driver, dev_driver_string(ab->dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->len = len;
>   memcpy(__get_dynamic_array(data), data, len);
>   ),
> diff --git a/drivers/net/wireless/ath/ath6kl/trace.h
> b/drivers/net/wireless/ath/ath6kl/trace.h
> index 231a94769ddb..8577aa459c58 100644
> --- a/drivers/net/wireless/ath/ath6kl/trace.h
> +++ b/drivers/net/wireless/ath/ath6kl/trace.h
> @@ -304,8 +304,8 @@ TRACE_EVENT(ath6kl_log_dbg_dump,
>   ),
>
>   TP_fast_assign(
> - __assign_str(msg, msg);
> - __assign_str(prefix, prefix);
> + __assign_str(msg);
> + __assign_str(prefix);
>   __entry->buf_len = buf_len;
>   memcpy(__get_dynamic_array(buf), buf, buf_len);
>   ),
> diff --git a/drivers/net/wireless/ath/trace.h
> b/drivers/net/wireless/ath/trace.h
> index 9935cf475b6d..82aac0a4baff 100644
> --- a/drivers/net/wireless/ath/trace.h
> +++ b/drivers/net/wireless/ath/trace.h
> @@ -44,8 +44,8 @@ TRACE_EVENT(ath_log,
>       ),
>
>       TP_fast_assign(
> -     __assign_str(device, wiphy_name(wiphy));
> -     __assign_str(driver, KBUILD_MODNAME);
> +     __assign_str(device);
> +     __assign_str(driver);
>       __assign_vstr(msg, vaf->fmt, vaf->va);
>       ),
>
> diff --git
> a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.h
> b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.h
> index 5d66e94c806d..96032322b165 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.h
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.h
> @@ -41,7 +41,7 @@ TRACE_EVENT(brcmf_err,
>   __vstring(msg, vaf->fmt, vaf->va)
>   ),
>   TP_fast_assign(
> - __assign_str(func, func);
> + __assign_str(func);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk("%s: %s", __get_str(func), __get_str(msg))
> @@ -57,7 +57,7 @@ TRACE_EVENT(brcmf_dbg,
>   ),
>   TP_fast_assign(
>   __entry->level = level;
> - __assign_str(func, func);
> + __assign_str(func);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk("%s: %s", __get_str(func), __get_str(msg))
> diff --git
> a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac.h
> b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac.h
> index a0da3248b942..53b3dba50737 100644
> ---
> a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac.h
> +++
> b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac.h
> @@ -81,7 +81,7 @@ TRACE_EVENT(brcms_macintstatus,
>   __field(u32, mask)
>   ),
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dev));
> + __assign_str(dev);
>   __entry->in_isr = in_isr;
>   __entry->macintstatus = macintstatus;
>   __entry->mask = mask;
> diff --git
> a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac_msg.h
> b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac_msg.h
> index 42b0a91656c4..908ce3c864fe 100644
> ---
> a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac_msg.h
> +++
> b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac_msg.h
> @@ -71,7 +71,7 @@ TRACE_EVENT(brcms_dbg,
>   ),
>   TP_fast_assign(
>   __entry->level = level;
> - __assign_str(func, func);
> + __assign_str(func);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk("%s: %s", __get_str(func), __get_str(msg))
> diff --git
> a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac_tx.h
> b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac_tx.h
> index cf2cc070f1e5..24ac34fa0207 100644
> ---
> a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac_tx.h
> +++
> b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/brcms_trace_brcmsm
> ac_tx.h
> @@ -31,7 +31,7 @@ TRACE_EVENT(brcms_txdesc,
>   __dynamic_array(u8, txh, txh_len)
>   ),
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dev));
> + __assign_str(dev);
>   memcpy(__get_dynamic_array(txh), txh, txh_len);
>   ),
>   TP_printk("[%s] txdesc", __get_str(dev))
> @@ -54,7 +54,7 @@ TRACE_EVENT(brcms_txstatus,
>   __field(u16, ackphyrxsh)
>   ),
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dev));
> + __assign_str(dev);
>   __entry->framelen = framelen;
>   __entry->frameid = frameid;
>   __entry->status = status;
> @@ -85,7 +85,7 @@ TRACE_EVENT(brcms_ampdu_session,
>   __field(u16, dma_len)
>   ),
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dev));
> + __assign_str(dev);
>   __entry->max_ampdu_len = max_ampdu_len;
>   __entry->max_ampdu_frames = max_ampdu_frames;
>   __entry->ampdu_len = ampdu_len;
> diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h
> b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h
> index 1d6c292cf545..0db1fa5477af 100644
> --- a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h
> +++ b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h
> @@ -57,7 +57,7 @@ TRACE_EVENT(iwlwifi_dbg,
>   ),
>   TP_fast_assign(
>   __entry->level = level;
> - __assign_str(function, function);
> + __assign_str(function);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk("%s", __get_str(msg))
> diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace.h
> b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace.h
> index c3e09f4fefeb..76166e1b10e5 100644
> --- a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace.h
> +++ b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace.h
> @@ -87,7 +87,7 @@ static inline void trace_ ## name(proto) {}
>  #endif
>
>  #define DEV_ENTRY __string(dev, dev_name(dev))
> -#define DEV_ASSIGN __assign_str(dev, dev_name(dev))
> +#define DEV_ASSIGN __assign_str(dev)
>
>  #include "iwl-devtrace-io.h"
>  #include "iwl-devtrace-ucode.h"
> diff --git a/drivers/soc/qcom/pmic_pdcharger_ulog.h
> b/drivers/soc/qcom/pmic_pdcharger_ulog.h
> index 152e3a6b5480..1cfa58f0e34c 100644
> --- a/drivers/soc/qcom/pmic_pdcharger_ulog.h
> +++ b/drivers/soc/qcom/pmic_pdcharger_ulog.h
> @@ -18,7 +18,7 @@ TRACE_EVENT(pmic_pdcharger_ulog_msg,
>   __string(msg, msg)
>   ),
>   TP_fast_assign(
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   ),
>   TP_printk("%s", __get_str(msg))
>  );
> diff --git a/drivers/soc/qcom/trace-aoss.h b/drivers/soc/qcom/trace-
> aoss.h
> index 554029b33b44..fb5b0470c40d 100644
> --- a/drivers/soc/qcom/trace-aoss.h
> +++ b/drivers/soc/qcom/trace-aoss.h
> @@ -18,7 +18,7 @@ TRACE_EVENT(aoss_send,
>   __string(msg, msg)
>   ),
>   TP_fast_assign(
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   ),
>   TP_printk("%s", __get_str(msg))
>  );
> @@ -31,7 +31,7 @@ TRACE_EVENT(aoss_send_done,
>   __field(int, ret)
>   ),
>   TP_fast_assign(
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   __entry->ret = ret;
>   ),
>   TP_printk("%s: %d", __get_str(msg), __entry->ret)
> diff --git a/drivers/soc/qcom/trace-rpmh.h b/drivers/soc/qcom/trace-
> rpmh.h
> index be6b42ecc1f8..593ec1d4e010 100644
> --- a/drivers/soc/qcom/trace-rpmh.h
> +++ b/drivers/soc/qcom/trace-rpmh.h
> @@ -26,7 +26,7 @@ TRACE_EVENT(rpmh_tx_done,
>   ),
>
>   TP_fast_assign(
> -        __assign_str(name, d->name);
> +        __assign_str(name);
>          __entry->m = m;
>          __entry->addr = r->cmds[0].addr;
>          __entry->data = r->cmds[0].data;
> @@ -55,7 +55,7 @@ TRACE_EVENT(rpmh_send_msg,
>   ),
>
>   TP_fast_assign(
> -        __assign_str(name, d->name);
> +        __assign_str(name);
>          __entry->m = m;
>          __entry->state = state;
>          __entry->n = n;
> diff --git a/drivers/thermal/thermal_trace.h
> b/drivers/thermal/thermal_trace.h
> index 88a962f560f2..df8f4edd6068 100644
> --- a/drivers/thermal/thermal_trace.h
> +++ b/drivers/thermal/thermal_trace.h
> @@ -37,7 +37,7 @@ TRACE_EVENT(thermal_temperature,
>   ),
>
>   TP_fast_assign(
> - __assign_str(thermal_zone, tz->type);
> + __assign_str(thermal_zone);
>   __entry->id = tz->id;
>   __entry->temp_prev = tz->last_temperature;
>   __entry->temp = tz->temperature;
> @@ -60,7 +60,7 @@ TRACE_EVENT(cdev_update,
>   ),
>
>   TP_fast_assign(
> - __assign_str(type, cdev->type);
> + __assign_str(type);
>   __entry->target = target;
>   ),
>
> @@ -82,7 +82,7 @@ TRACE_EVENT(thermal_zone_trip,
>   ),
>
>   TP_fast_assign(
> - __assign_str(thermal_zone, tz->type);
> + __assign_str(thermal_zone);
>   __entry->id = tz->id;
>   __entry->trip = trip;
>   __entry->trip_type = trip_type;
> @@ -156,7 +156,7 @@ TRACE_EVENT(thermal_power_devfreq_get_power,
>   ),
>
>   TP_fast_assign(
> - __assign_str(type, cdev->type);
> + __assign_str(type);
>   __entry->freq = freq;
>   __entry->busy_time = status->busy_time;
>   __entry->total_time = status->total_time;
> @@ -184,7 +184,7 @@ TRACE_EVENT(thermal_power_devfreq_limit,
>   ),
>
>   TP_fast_assign(
> - __assign_str(type, cdev->type);
> + __assign_str(type);
>   __entry->freq = freq;
>   __entry->cdev_state = cdev_state;
>   __entry->power = power;
> diff --git a/drivers/usb/cdns3/cdns3-trace.h
> b/drivers/usb/cdns3/cdns3-trace.h
> index 40db89e3333c..c4e542f1b9b7 100644
> --- a/drivers/usb/cdns3/cdns3-trace.h
> +++ b/drivers/usb/cdns3/cdns3-trace.h
> @@ -33,7 +33,7 @@ TRACE_EVENT(cdns3_halt,
>   __field(u8, flush)
>   ),
>   TP_fast_assign(
> - __assign_str(name, ep_priv->name);
> + __assign_str(name);
>   __entry->halt = halt;
>   __entry->flush = flush;
>   ),
> @@ -49,8 +49,8 @@ TRACE_EVENT(cdns3_wa1,
>   __string(msg, msg)
>   ),
>   TP_fast_assign(
> - __assign_str(ep_name, ep_priv->name);
> - __assign_str(msg, msg);
> + __assign_str(ep_name);
> + __assign_str(msg);
>   ),
>   TP_printk("WA1: %s %s", __get_str(ep_name), __get_str(msg))
>  );
> @@ -63,8 +63,8 @@ TRACE_EVENT(cdns3_wa2,
>   __string(msg, msg)
>   ),
>   TP_fast_assign(
> - __assign_str(ep_name, ep_priv->name);
> - __assign_str(msg, msg);
> + __assign_str(ep_name);
> + __assign_str(msg);
>   ),
>   TP_printk("WA2: %s %s", __get_str(ep_name), __get_str(msg))
>  );
> @@ -77,7 +77,7 @@ DECLARE_EVENT_CLASS(cdns3_log_doorbell,
>   __field(u32, ep_trbaddr)
>   ),
>   TP_fast_assign(
> - __assign_str(name, ep_name);
> + __assign_str(name);
>   __entry->ep_trbaddr = ep_trbaddr;
>   ),
>   TP_printk("%s, ep_trbaddr %08x", __get_str(name),
> @@ -125,7 +125,7 @@ DECLARE_EVENT_CLASS(cdns3_log_epx_irq,
>   __field(u32, use_streams)
>   ),
>   TP_fast_assign(
> - __assign_str(ep_name, priv_ep->name);
> + __assign_str(ep_name);
>   __entry->ep_sts = readl(&priv_dev->regs->ep_sts);
>   __entry->ep_traddr = readl(&priv_dev->regs-
> >ep_traddr);
>   __entry->ep_last_sid = priv_ep->last_stream_id;
> @@ -214,7 +214,7 @@ DECLARE_EVENT_CLASS(cdns3_log_request,
>   __field(unsigned int, stream_id)
>   ),
>   TP_fast_assign(
> - __assign_str(name, req->priv_ep->name);
> + __assign_str(name);
>   __entry->req = req;
>   __entry->buf = req->request.buf;
>   __entry->actual = req->request.actual;
> @@ -294,7 +294,7 @@
> DECLARE_EVENT_CLASS(cdns3_stream_split_transfer_len,
>   __field(unsigned int, stream_id)
>   ),
>   TP_fast_assign(
> - __assign_str(name, req->priv_ep->name);
> + __assign_str(name);
>   __entry->req = req;
>   __entry->actual = req->request.length;
>   __entry->length = req->request.actual;
> @@ -329,7 +329,7 @@ DECLARE_EVENT_CLASS(cdns3_log_aligned_request,
>   __field(u32, aligned_buf_size)
>   ),
>   TP_fast_assign(
> - __assign_str(name, priv_req->priv_ep->name);
> + __assign_str(name);
>   __entry->req = &priv_req->request;
>   __entry->buf = priv_req->request.buf;
>   __entry->dma = priv_req->request.dma;
> @@ -364,7 +364,7 @@ DECLARE_EVENT_CLASS(cdns3_log_map_request,
>   __field(dma_addr_t, dma)
>   ),
>   TP_fast_assign(
> - __assign_str(name, priv_req->priv_ep->name);
> + __assign_str(name);
>   __entry->req = &priv_req->request;
>   __entry->buf = priv_req->request.buf;
>   __entry->dma = priv_req->request.dma;
> @@ -395,7 +395,7 @@ DECLARE_EVENT_CLASS(cdns3_log_trb,
>   __field(unsigned int, last_stream_id)
>   ),
>   TP_fast_assign(
> - __assign_str(name, priv_ep->name);
> + __assign_str(name);
>   __entry->trb = trb;
>   __entry->buffer = le32_to_cpu(trb->buffer);
>   __entry->length = le32_to_cpu(trb->length);
> @@ -467,7 +467,7 @@ DECLARE_EVENT_CLASS(cdns3_log_ep,
>   __field(u8, dequeue)
>   ),
>   TP_fast_assign(
> - __assign_str(name, priv_ep->name);
> + __assign_str(name);
>   __entry->maxpacket = priv_ep->endpoint.maxpacket;
>   __entry->maxpacket_limit = priv_ep-
> >endpoint.maxpacket_limit;
>   __entry->max_streams = priv_ep-
> >endpoint.max_streams;
> diff --git a/drivers/usb/cdns3/cdnsp-trace.h
> b/drivers/usb/cdns3/cdnsp-trace.h
> index 4b51011eb00b..f2bcf77a5d0a 100644
> --- a/drivers/usb/cdns3/cdnsp-trace.h
> +++ b/drivers/usb/cdns3/cdnsp-trace.h
> @@ -48,7 +48,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_ep,
>   __field(u8, drbls_count)
>   ),
>   TP_fast_assign(
> - __assign_str(name, pep->name);
> + __assign_str(name);
>   __entry->state = pep->ep_state;
>   __entry->stream_id = stream_id;
>   __entry->enabled = pep->ep_state & EP_HAS_STREAMS;
> @@ -138,7 +138,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_simple,
>   __string(text, msg)
>   ),
>   TP_fast_assign(
> - __assign_str(text, msg);
> + __assign_str(text);
>   ),
>   TP_printk("%s", __get_str(text))
>  );
> @@ -303,7 +303,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_bounce,
>   __field(unsigned int, unalign)
>   ),
>   TP_fast_assign(
> - __assign_str(name, preq->pep->name);
> + __assign_str(name);
>   __entry->new_buf_len = new_buf_len;
>   __entry->offset = offset;
>   __entry->dma = dma;
> @@ -470,7 +470,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_request,
>
>   ),
>   TP_fast_assign(
> - __assign_str(name, req->pep->name);
> + __assign_str(name);
>   __entry->request = &req->request;
>   __entry->preq = req;
>   __entry->buf = req->request.buf;
> @@ -674,7 +674,7 @@ DECLARE_EVENT_CLASS(cdnsp_log_td_info,
>   __field(dma_addr_t, trb_dma)
>   ),
>   TP_fast_assign(
> - __assign_str(name, preq->pep->name);
> + __assign_str(name);
>   __entry->request = &preq->request;
>   __entry->preq = preq;
>   __entry->first_trb = preq->td.first_trb;
> diff --git a/drivers/usb/chipidea/trace.h
> b/drivers/usb/chipidea/trace.h
> index ca0e65b48f0a..1875419cd17f 100644
> --- a/drivers/usb/chipidea/trace.h
> +++ b/drivers/usb/chipidea/trace.h
> @@ -31,7 +31,7 @@ TRACE_EVENT(ci_log,
>   __vstring(msg, vaf->fmt, vaf->va)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name(ci->dev));
> + __assign_str(name);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk("%s: %s", __get_str(name), __get_str(msg))
> @@ -51,7 +51,7 @@ DECLARE_EVENT_CLASS(ci_log_trb,
>   __field(u32, type)
>   ),
>   TP_fast_assign(
> - __assign_str(name, hwep->name);
> + __assign_str(name);
>   __entry->req = &hwreq->req;
>   __entry->td = td;
>   __entry->dma = td->dma;
> diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h
> index d2997d17cfbe..bdeb1aaf65d8 100644
> --- a/drivers/usb/dwc3/trace.h
> +++ b/drivers/usb/dwc3/trace.h
> @@ -112,7 +112,7 @@ DECLARE_EVENT_CLASS(dwc3_log_request,
>   __field(int, no_interrupt)
>   ),
>   TP_fast_assign(
> - __assign_str(name, req->dep->name);
> + __assign_str(name);
>   __entry->req = req;
>   __entry->actual = req->request.actual;
>   __entry->length = req->request.length;
> @@ -193,7 +193,7 @@ DECLARE_EVENT_CLASS(dwc3_log_gadget_ep_cmd,
>   __field(int, cmd_status)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dep->name);
> + __assign_str(name);
>   __entry->cmd = cmd;
>   __entry->param0 = params->param0;
>   __entry->param1 = params->param1;
> @@ -229,7 +229,7 @@ DECLARE_EVENT_CLASS(dwc3_log_trb,
>   __field(u32, dequeue)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dep->name);
> + __assign_str(name);
>   __entry->trb = trb;
>   __entry->bpl = trb->bpl;
>   __entry->bph = trb->bph;
> @@ -301,7 +301,7 @@ DECLARE_EVENT_CLASS(dwc3_log_ep,
>   __field(u8, trb_dequeue)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dep->name);
> + __assign_str(name);
>   __entry->maxpacket = dep->endpoint.maxpacket;
>   __entry->maxpacket_limit = dep-
> >endpoint.maxpacket_limit;
>   __entry->max_streams = dep->endpoint.max_streams;
> diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-trace.h
> b/drivers/usb/gadget/udc/cdns2/cdns2-trace.h
> index 61f241634ea5..ade1752956b1 100644
> --- a/drivers/usb/gadget/udc/cdns2/cdns2-trace.h
> +++ b/drivers/usb/gadget/udc/cdns2/cdns2-trace.h
> @@ -64,7 +64,7 @@ DECLARE_EVENT_CLASS(cdns2_log_simple,
>   __string(text, msg)
>   ),
>   TP_fast_assign(
> - __assign_str(text, msg);
> + __assign_str(text);
>   ),
>   TP_printk("%s", __get_str(text))
>  );
> @@ -103,7 +103,7 @@ TRACE_EVENT(cdns2_ep_halt,
>   __field(u8, flush)
>   ),
>   TP_fast_assign(
> - __assign_str(name, ep_priv->name);
> + __assign_str(name);
>   __entry->halt = halt;
>   __entry->flush = flush;
>   ),
> @@ -119,8 +119,8 @@ TRACE_EVENT(cdns2_wa1,
>   __string(msg, msg)
>   ),
>   TP_fast_assign(
> - __assign_str(ep_name, ep_priv->name);
> - __assign_str(msg, msg);
> + __assign_str(ep_name);
> + __assign_str(msg);
>   ),
>   TP_printk("WA1: %s %s", __get_str(ep_name), __get_str(msg))
>  );
> @@ -134,7 +134,7 @@ DECLARE_EVENT_CLASS(cdns2_log_doorbell,
>   __field(u32, ep_trbaddr)
>   ),
>   TP_fast_assign(
> - __assign_str(name, pep->name);
> + __assign_str(name);
>   __entry->ep_trbaddr = ep_trbaddr;
>   ),
>   TP_printk("%s, ep_trbaddr %08x", __get_str(name),
> @@ -196,7 +196,7 @@ DECLARE_EVENT_CLASS(cdns2_log_epx_irq,
>   __field(u32, ep_traddr)
>   ),
>   TP_fast_assign(
> - __assign_str(ep_name, pep->name);
> + __assign_str(ep_name);
>   __entry->ep_sts = readl(&pdev->adma_regs->ep_sts);
>   __entry->ep_ists = readl(&pdev->adma_regs->ep_ists);
>   __entry->ep_traddr = readl(&pdev->adma_regs-
> >ep_traddr);
> @@ -288,7 +288,7 @@ DECLARE_EVENT_CLASS(cdns2_log_request,
>   __field(int, end_trb)
>   ),
>   TP_fast_assign(
> - __assign_str(name, preq->pep->name);
> + __assign_str(name);
>   __entry->request = &preq->request;
>   __entry->preq = preq;
>   __entry->buf = preq->request.buf;
> @@ -380,7 +380,7 @@ DECLARE_EVENT_CLASS(cdns2_log_map_request,
>   __field(dma_addr_t, dma)
>   ),
>   TP_fast_assign(
> - __assign_str(name, priv_req->pep->name);
> + __assign_str(name);
>   __entry->req = &priv_req->request;
>   __entry->buf = priv_req->request.buf;
>   __entry->dma = priv_req->request.dma;
> @@ -411,7 +411,7 @@ DECLARE_EVENT_CLASS(cdns2_log_trb,
>   __field(u32, type)
>   ),
>   TP_fast_assign(
> - __assign_str(name, pep->name);
> + __assign_str(name);
>   __entry->trb = trb;
>   __entry->buffer = le32_to_cpu(trb->buffer);
>   __entry->length = le32_to_cpu(trb->length);
> @@ -476,7 +476,7 @@ DECLARE_EVENT_CLASS(cdns2_log_ep,
>   __field(u8, dequeue)
>   ),
>   TP_fast_assign(
> - __assign_str(name, pep->name);
> + __assign_str(name);
>   __entry->maxpacket = pep->endpoint.maxpacket;
>   __entry->maxpacket_limit = pep-
> >endpoint.maxpacket_limit;
>   __entry->flags = pep->ep_state;
> @@ -568,7 +568,7 @@ DECLARE_EVENT_CLASS(cdns2_log_epx_reg_config,
>   __field(u32, ep_cfg_reg)
>   ),
>   TP_fast_assign(
> - __assign_str(ep_name, pep->name);
> + __assign_str(ep_name);
>   __entry->burst_size = pep->trb_burst_size;
>   __entry->maxpack_reg = pep->dir ? readw(&pdev-
> >epx_regs->txmaxpack[pep->num - 1]) :
>     readw(&pdev-
> >epx_regs->rxmaxpack[pep->num - 1]);
> diff --git a/drivers/usb/gadget/udc/trace.h
> b/drivers/usb/gadget/udc/trace.h
> index a5ed26fbc2da..4e334298b0e8 100644
> --- a/drivers/usb/gadget/udc/trace.h
> +++ b/drivers/usb/gadget/udc/trace.h
> @@ -157,7 +157,7 @@ DECLARE_EVENT_CLASS(udc_log_ep,
>   __field(int, ret)
>   ),
>   TP_fast_assign(
> - __assign_str(name, ep->name);
> + __assign_str(name);
>   __entry->maxpacket = ep->maxpacket;
>   __entry->maxpacket_limit = ep->maxpacket_limit;
>   __entry->max_streams = ep->max_streams;
> @@ -233,7 +233,7 @@ DECLARE_EVENT_CLASS(udc_log_req,
>   __field(struct usb_request *, req)
>   ),
>   TP_fast_assign(
> - __assign_str(name, ep->name);
> + __assign_str(name);
>   __entry->length = req->length;
>   __entry->actual = req->actual;
>   __entry->num_sgs = req->num_sgs;
> diff --git a/drivers/usb/mtu3/mtu3_trace.h
> b/drivers/usb/mtu3/mtu3_trace.h
> index 03d2a9bac27e..89870175d635 100644
> --- a/drivers/usb/mtu3/mtu3_trace.h
> +++ b/drivers/usb/mtu3/mtu3_trace.h
> @@ -26,7 +26,7 @@ TRACE_EVENT(mtu3_log,
>   __vstring(msg, vaf->fmt, vaf->va)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name(dev));
> + __assign_str(name);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk("%s: %s", __get_str(name), __get_str(msg))
> @@ -127,7 +127,7 @@ DECLARE_EVENT_CLASS(mtu3_log_request,
>   __field(int, no_interrupt)
>   ),
>   TP_fast_assign(
> - __assign_str(name, mreq->mep->name);
> + __assign_str(name);
>   __entry->mreq = mreq;
>   __entry->gpd = mreq->gpd;
>   __entry->actual = mreq->request.actual;
> @@ -182,7 +182,7 @@ DECLARE_EVENT_CLASS(mtu3_log_gpd,
>   __field(u32, dw3)
>   ),
>   TP_fast_assign(
> - __assign_str(name, mep->name);
> + __assign_str(name);
>   __entry->gpd = gpd;
>   __entry->dw0 = le32_to_cpu(gpd->dw0_info);
>   __entry->dw1 = le32_to_cpu(gpd->next_gpd);
> @@ -226,7 +226,7 @@ DECLARE_EVENT_CLASS(mtu3_log_ep,
>   __field(struct mtu3_gpd_ring *, gpd_ring)
>   ),
>   TP_fast_assign(
> - __assign_str(name, mep->name);
> + __assign_str(name);
>   __entry->type = mep->type;
>   __entry->slot = mep->slot;
>   __entry->maxp = mep->ep.maxpacket;
> diff --git a/drivers/usb/musb/musb_trace.h
> b/drivers/usb/musb/musb_trace.h
> index f246b14394c4..726e6697d475 100644
> --- a/drivers/usb/musb/musb_trace.h
> +++ b/drivers/usb/musb/musb_trace.h
> @@ -31,7 +31,7 @@ TRACE_EVENT(musb_log,
>   __vstring(msg, vaf->fmt, vaf->va)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name(musb->controller));
> + __assign_str(name);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>   TP_printk("%s: %s", __get_str(name), __get_str(msg))
> @@ -46,9 +46,9 @@ TRACE_EVENT(musb_state,
>   __string(desc, desc)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name(musb->controller));
> + __assign_str(name);
>   __entry->devctl = devctl;
> - __assign_str(desc, desc);
> + __assign_str(desc);
>   ),
>   TP_printk("%s: devctl: %02x %s", __get_str(name), __entry-
> >devctl,
>     __get_str(desc))
> @@ -160,7 +160,7 @@ TRACE_EVENT(musb_isr,
>   __field(u16, int_rx)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name(musb->controller));
> + __assign_str(name);
>   __entry->int_usb = musb->int_usb;
>   __entry->int_tx = musb->int_tx;
>   __entry->int_rx = musb->int_rx;
> @@ -184,7 +184,7 @@ DECLARE_EVENT_CLASS(musb_urb,
>   __field(u32, actual_len)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name(musb->controller));
> + __assign_str(name);
>   __entry->urb = urb;
>   __entry->pipe = urb->pipe;
>   __entry->status = urb->status;
> @@ -325,7 +325,7 @@ DECLARE_EVENT_CLASS(musb_cppi41,
>   ),
>   TP_fast_assign(
>   __entry->ch = ch;
> - __assign_str(name, dev_name(ch->hw_ep->musb-
> >controller));
> + __assign_str(name);
>   __entry->hwep = ch->hw_ep->epnum;
>   __entry->port = ch->port_num;
>   __entry->is_tx = ch->is_tx;
> diff --git a/fs/bcachefs/trace.h b/fs/bcachefs/trace.h
> index 6aa81d1e6d36..0b9774168b1d 100644
> --- a/fs/bcachefs/trace.h
> +++ b/fs/bcachefs/trace.h
> @@ -43,7 +43,7 @@ DECLARE_EVENT_CLASS(fs_str,
>
>   TP_fast_assign(
>   __entry->dev = c->dev;
> - __assign_str(str, str);
> + __assign_str(str);
>   ),
>
>   TP_printk("%d,%d\n%s", MAJOR(__entry->dev), MINOR(__entry-
> >dev), __get_str(str))
> @@ -64,7 +64,7 @@ DECLARE_EVENT_CLASS(trans_str,
>   __entry->dev = trans->c->dev;
>   strscpy(__entry->trans_fn, trans->fn,
> sizeof(__entry->trans_fn));
>   __entry->caller_ip = caller_ip;
> - __assign_str(str, str);
> + __assign_str(str);
>   ),
>
>   TP_printk("%d,%d %s %pS %s",
> @@ -85,7 +85,7 @@ DECLARE_EVENT_CLASS(trans_str_nocaller,
>   TP_fast_assign(
>   __entry->dev = trans->c->dev;
>   strscpy(__entry->trans_fn, trans->fn,
> sizeof(__entry->trans_fn));
> - __assign_str(str, str);
> + __assign_str(str);
>   ),
>
>   TP_printk("%d,%d %s %s",
> diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
> index 10985a4b8259..4de8780a7c48 100644
> --- a/fs/nfs/nfs4trace.h
> +++ b/fs/nfs/nfs4trace.h
> @@ -47,7 +47,7 @@ DECLARE_EVENT_CLASS(nfs4_clientid_event,
>
>   TP_fast_assign(
>   __entry->error = error < 0 ? -error : 0;
> - __assign_str(dstaddr, clp->cl_hostname);
> + __assign_str(dstaddr);
>   ),
>
>   TP_printk(
> @@ -94,8 +94,8 @@ TRACE_EVENT(nfs4_trunked_exchange_id,
>
>   TP_fast_assign(
>   __entry->error = error < 0 ? -error : 0;
> - __assign_str(main_addr, clp->cl_hostname);
> - __assign_str(trunk_addr, addr);
> + __assign_str(main_addr);
> + __assign_str(trunk_addr);
>   ),
>
>   TP_printk(
> @@ -365,7 +365,7 @@ TRACE_EVENT(nfs4_state_mgr,
>
>   TP_fast_assign(
>   __entry->state = clp->cl_state;
> - __assign_str(hostname, clp->cl_hostname);
> + __assign_str(hostname);
>   ),
>
>   TP_printk(
> @@ -393,8 +393,8 @@ TRACE_EVENT(nfs4_state_mgr_failed,
>   TP_fast_assign(
>   __entry->error = status < 0 ? -status : 0;
>   __entry->state = clp->cl_state;
> - __assign_str(hostname, clp->cl_hostname);
> - __assign_str(section, section);
> + __assign_str(hostname);
> + __assign_str(section);
>   ),
>
>   TP_printk(
> @@ -578,7 +578,7 @@ DECLARE_EVENT_CLASS(nfs4_open_event,
>   __entry->fhandle = 0;
>   }
>   __entry->dir = NFS_FILEID(d_inode(ctx-
> >dentry->d_parent));
> - __assign_str(name, ctx->dentry-
> >d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -1072,7 +1072,7 @@ DECLARE_EVENT_CLASS(nfs4_lookup_event,
>   __entry->dev = dir->i_sb->s_dev;
>   __entry->dir = NFS_FILEID(dir);
>   __entry->error = -error;
> - __assign_str(name, name->name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -1156,8 +1156,8 @@ TRACE_EVENT(nfs4_rename,
>   __entry->olddir = NFS_FILEID(olddir);
>   __entry->newdir = NFS_FILEID(newdir);
>   __entry->error = error < 0 ? -error : 0;
> - __assign_str(oldname, oldname->name);
> - __assign_str(newname, newname->name);
> + __assign_str(oldname);
> + __assign_str(newname);
>   ),
>
>   TP_printk(
> @@ -1359,7 +1359,7 @@ DECLARE_EVENT_CLASS(nfs4_inode_callback_event,
>   __entry->fileid = 0;
>   __entry->dev = 0;
>   }
> - __assign_str(dstaddr, clp ? clp->cl_hostname
> : "unknown");
> + __assign_str(dstaddr);
>   ),
>
>   TP_printk(
> @@ -1416,7 +1416,7 @@
> DECLARE_EVENT_CLASS(nfs4_inode_stateid_callback_event,
>   __entry->fileid = 0;
>   __entry->dev = 0;
>   }
> - __assign_str(dstaddr, clp ? clp->cl_hostname
> : "unknown");
> + __assign_str(dstaddr);
>   __entry->stateid_seq =
>   be32_to_cpu(stateid->seqid);
>   __entry->stateid_hash =
> @@ -1960,7 +1960,7 @@ DECLARE_EVENT_CLASS(nfs4_deviceid_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dstaddr, clp->cl_hostname);
> + __assign_str(dstaddr);
>   memcpy(__entry->deviceid, deviceid->data,
>          NFS4_DEVICEID4_SIZE);
>   ),
> @@ -1998,7 +1998,7 @@ DECLARE_EVENT_CLASS(nfs4_deviceid_status,
>   TP_fast_assign(
>   __entry->dev = server->s_dev;
>   __entry->status = status;
> - __assign_str(dstaddr, server->nfs_client-
> >cl_hostname);
> + __assign_str(dstaddr);
>   memcpy(__entry->deviceid, deviceid->data,
>          NFS4_DEVICEID4_SIZE);
>   ),
> @@ -2036,8 +2036,8 @@ TRACE_EVENT(fl_getdevinfo,
>   ),
>
>   TP_fast_assign(
> - __assign_str(mds_addr, server->nfs_client-
> >cl_hostname);
> - __assign_str(ds_ips, ds_remotestr);
> + __assign_str(mds_addr);
> + __assign_str(ds_ips);
>   memcpy(__entry->deviceid, deviceid->data,
>          NFS4_DEVICEID4_SIZE);
>   ),
> @@ -2083,9 +2083,7 @@ DECLARE_EVENT_CLASS(nfs4_flexfiles_io_event,
>   be32_to_cpu(hdr-
> >args.stateid.seqid);
>   __entry->stateid_hash =
>   nfs_stateid_hash(&hdr-
> >args.stateid);
> - __assign_str(dstaddr, hdr->ds_clp ?
> - rpc_peeraddr2str(hdr->ds_clp-
> >cl_rpcclient,
> - RPC_DISPLAY_ADDR) :
> "unknown");
> + __assign_str(dstaddr);
>   ),
>
>   TP_printk(
> @@ -2139,9 +2137,7 @@ TRACE_EVENT(ff_layout_commit_error,
>   __entry->dev = inode->i_sb->s_dev;
>   __entry->offset = data->args.offset;
>   __entry->count = data->args.count;
> - __assign_str(dstaddr, data->ds_clp ?
> - rpc_peeraddr2str(data->ds_clp-
> >cl_rpcclient,
> - RPC_DISPLAY_ADDR) :
> "unknown");
> + __assign_str(dstaddr);
>   ),
>
>   TP_printk(
> @@ -2579,7 +2575,7 @@ DECLARE_EVENT_CLASS(nfs4_xattr_event,
>   __entry->dev = inode->i_sb->s_dev;
>   __entry->fileid = NFS_FILEID(inode);
>   __entry->fhandle =
> nfs_fhandle_hash(NFS_FH(inode));
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h
> index afedb449b54f..1e710654af11 100644
> --- a/fs/nfs/nfstrace.h
> +++ b/fs/nfs/nfstrace.h
> @@ -409,7 +409,7 @@ DECLARE_EVENT_CLASS(nfs_lookup_event,
>   __entry->dir = NFS_FILEID(dir);
>   __entry->flags = flags;
>   __entry->fileid = d_is_negative(dentry) ? 0
> : NFS_FILEID(d_inode(dentry));
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -457,7 +457,7 @@ DECLARE_EVENT_CLASS(nfs_lookup_event_done,
>   __entry->error = error < 0 ? -error : 0;
>   __entry->flags = flags;
>   __entry->fileid = d_is_negative(dentry) ? 0
> : NFS_FILEID(d_inode(dentry));
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -512,7 +512,7 @@ TRACE_EVENT(nfs_atomic_open_enter,
>   __entry->dir = NFS_FILEID(dir);
>   __entry->flags = flags;
>   __entry->fmode = (__force unsigned long)ctx-
> >mode;
> - __assign_str(name, ctx->dentry-
> >d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -551,7 +551,7 @@ TRACE_EVENT(nfs_atomic_open_exit,
>   __entry->dir = NFS_FILEID(dir);
>   __entry->flags = flags;
>   __entry->fmode = (__force unsigned long)ctx-
> >mode;
> - __assign_str(name, ctx->dentry-
> >d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -587,7 +587,7 @@ TRACE_EVENT(nfs_create_enter,
>   __entry->dev = dir->i_sb->s_dev;
>   __entry->dir = NFS_FILEID(dir);
>   __entry->flags = flags;
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -623,7 +623,7 @@ TRACE_EVENT(nfs_create_exit,
>   __entry->dev = dir->i_sb->s_dev;
>   __entry->dir = NFS_FILEID(dir);
>   __entry->flags = flags;
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -654,7 +654,7 @@ DECLARE_EVENT_CLASS(nfs_directory_event,
>   TP_fast_assign(
>   __entry->dev = dir->i_sb->s_dev;
>   __entry->dir = NFS_FILEID(dir);
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -693,7 +693,7 @@ DECLARE_EVENT_CLASS(nfs_directory_event_done,
>   __entry->dev = dir->i_sb->s_dev;
>   __entry->dir = NFS_FILEID(dir);
>   __entry->error = error < 0 ? -error : 0;
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -747,7 +747,7 @@ TRACE_EVENT(nfs_link_enter,
>   __entry->dev = inode->i_sb->s_dev;
>   __entry->fileid = NFS_FILEID(inode);
>   __entry->dir = NFS_FILEID(dir);
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -783,7 +783,7 @@ TRACE_EVENT(nfs_link_exit,
>   __entry->fileid = NFS_FILEID(inode);
>   __entry->dir = NFS_FILEID(dir);
>   __entry->error = error < 0 ? -error : 0;
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk(
> @@ -819,8 +819,8 @@ DECLARE_EVENT_CLASS(nfs_rename_event,
>   __entry->dev = old_dir->i_sb->s_dev;
>   __entry->old_dir = NFS_FILEID(old_dir);
>   __entry->new_dir = NFS_FILEID(new_dir);
> - __assign_str(old_name, old_dentry-
> >d_name.name);
> - __assign_str(new_name, new_dentry-
> >d_name.name);
> + __assign_str(old_name);
> + __assign_str(new_name);
>   ),
>
>   TP_printk(
> @@ -868,8 +868,8 @@ DECLARE_EVENT_CLASS(nfs_rename_event_done,
>   __entry->error = -error;
>   __entry->old_dir = NFS_FILEID(old_dir);
>   __entry->new_dir = NFS_FILEID(new_dir);
> - __assign_str(old_name, old_dentry-
> >d_name.name);
> - __assign_str(new_name, new_dentry-
> >d_name.name);
> + __assign_str(old_name);
> + __assign_str(new_name);
>   ),
>
>   TP_printk(
> @@ -1636,8 +1636,8 @@ TRACE_EVENT(nfs_mount_assign,
>   ),
>
>   TP_fast_assign(
> - __assign_str(option, option);
> - __assign_str(value, value);
> + __assign_str(option);
> + __assign_str(value);
>   ),
>
>   TP_printk("option %s=%s",
> @@ -1657,7 +1657,7 @@ TRACE_EVENT(nfs_mount_option,
>   ),
>
>   TP_fast_assign(
> - __assign_str(option, param->key);
> + __assign_str(option);
>   ),
>
>   TP_printk("option %s", __get_str(option))
> @@ -1675,7 +1675,7 @@ TRACE_EVENT(nfs_mount_path,
>   ),
>
>   TP_fast_assign(
> - __assign_str(path, path);
> + __assign_str(path);
>   ),
>
>   TP_printk("path='%s'", __get_str(path))
> @@ -1710,9 +1710,8 @@ DECLARE_EVENT_CLASS(nfs_xdr_event,
>   __entry->xid = be32_to_cpu(rqstp->rq_xid);
>   __entry->version = task->tk_client->cl_vers;
>   __entry->error = error;
> - __assign_str(program,
> -      task->tk_client->cl_program-
> >name);
> - __assign_str(procedure, task-
> >tk_msg.rpc_proc->p_name);
> + __assign_str(program);
> + __assign_str(procedure);
>   ),
>
>   TP_printk(SUNRPC_TRACE_TASK_SPECIFIER
> diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
> index 1cd2076210b1..023fee92a508 100644
> --- a/fs/nfsd/trace.h
> +++ b/fs/nfsd/trace.h
> @@ -104,7 +104,7 @@ TRACE_EVENT(nfsd_compound,
>   TP_fast_assign(
>   __entry->xid = be32_to_cpu(rqst->rq_xid);
>   __entry->opcnt = opcnt;
> - __assign_str(tag, tag);
> + __assign_str(tag);
>   ),
>   TP_printk("xid=0x%08x opcnt=%u tag=%s",
>   __entry->xid, __entry->opcnt, __get_str(tag)
> @@ -127,7 +127,7 @@ TRACE_EVENT(nfsd_compound_status,
>   __entry->args_opcnt = args_opcnt;
>   __entry->resp_opcnt = resp_opcnt;
>   __entry->status = be32_to_cpu(status);
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("op=%u/%u %s status=%d",
>   __entry->resp_opcnt, __entry->args_opcnt,
> @@ -318,7 +318,7 @@ TRACE_EVENT(nfsd_exp_find_key,
>   TP_fast_assign(
>   __entry->fsidtype = key->ek_fsidtype;
>   memcpy(__entry->fsid, key->ek_fsid, 4*6);
> - __assign_str(auth_domain, key->ek_client->name);
> + __assign_str(auth_domain);
>   __entry->status = status;
>   ),
>   TP_printk("fsid=%x::%s domain=%s status=%d",
> @@ -342,8 +342,8 @@ TRACE_EVENT(nfsd_expkey_update,
>   TP_fast_assign(
>   __entry->fsidtype = key->ek_fsidtype;
>   memcpy(__entry->fsid, key->ek_fsid, 4*6);
> - __assign_str(auth_domain, key->ek_client->name);
> - __assign_str(path, exp_path);
> + __assign_str(auth_domain);
> + __assign_str(path);
>   __entry->cache = !test_bit(CACHE_NEGATIVE, &key-
> >h.flags);
>   ),
>   TP_printk("fsid=%x::%s domain=%s path=%s cache=%s",
> @@ -365,8 +365,8 @@ TRACE_EVENT(nfsd_exp_get_by_name,
>   __field(int, status)
>   ),
>   TP_fast_assign(
> - __assign_str(path, key->ex_path.dentry-
> >d_name.name);
> - __assign_str(auth_domain, key->ex_client->name);
> + __assign_str(path);
> + __assign_str(auth_domain);
>   __entry->status = status;
>   ),
>   TP_printk("path=%s domain=%s status=%d",
> @@ -385,8 +385,8 @@ TRACE_EVENT(nfsd_export_update,
>   __field(bool, cache)
>   ),
>   TP_fast_assign(
> - __assign_str(path, key->ex_path.dentry-
> >d_name.name);
> - __assign_str(auth_domain, key->ex_client->name);
> + __assign_str(path);
> + __assign_str(auth_domain);
>   __entry->cache = !test_bit(CACHE_NEGATIVE, &key-
> >h.flags);
>   ),
>   TP_printk("path=%s domain=%s cache=%s",
> @@ -485,7 +485,7 @@ TRACE_EVENT(nfsd_dirent,
>   TP_fast_assign(
>   __entry->fh_hash = fhp ? knfsd_fh_hash(&fhp-
> >fh_handle) : 0;
>   __entry->ino = ino;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("fh_hash=0x%08x ino=%llu name=%s",
>   __entry->fh_hash, __entry->ino, __get_str(name)
> @@ -906,7 +906,7 @@ DECLARE_EVENT_CLASS(nfsd_clid_class,
>   __entry->flavor = clp->cl_cred.cr_flavor;
>   memcpy(__entry->verifier, (void *)&clp->cl_verifier,
>          NFS4_VERIFIER_SIZE);
> - __assign_str(name, clp->cl_name.data);
> + __assign_str(name);
>   ),
>   TP_printk("addr=%pISpc name='%s' verifier=0x%s flavor=%s
> client=%08x:%08x",
>   __entry->addr, __get_str(name),
> @@ -1425,7 +1425,7 @@ TRACE_EVENT(nfsd_cb_setup,
>   TP_fast_assign(
>   __entry->cl_boot = clp->cl_clientid.cl_boot;
>   __entry->cl_id = clp->cl_clientid.cl_id;
> - __assign_str(netid, netid);
> + __assign_str(netid);
>   __entry->authflavor = authflavor;
>   __assign_sockaddr(addr, &clp->cl_cb_conn.cb_addr,
>     clp->cl_cb_conn.cb_addrlen)
> @@ -1770,7 +1770,7 @@ TRACE_EVENT(nfsd_ctl_unlock_ip,
>   ),
>   TP_fast_assign(
>   __entry->netns_ino = net->ns.inum;
> - __assign_str(address, address);
> + __assign_str(address);
>   ),
>   TP_printk("address=%s",
>   __get_str(address)
> @@ -1789,7 +1789,7 @@ TRACE_EVENT(nfsd_ctl_unlock_fs,
>   ),
>   TP_fast_assign(
>   __entry->netns_ino = net->ns.inum;
> - __assign_str(path, path);
> + __assign_str(path);
>   ),
>   TP_printk("path=%s",
>   __get_str(path)
> @@ -1813,8 +1813,8 @@ TRACE_EVENT(nfsd_ctl_filehandle,
>   TP_fast_assign(
>   __entry->netns_ino = net->ns.inum;
>   __entry->maxsize = maxsize;
> - __assign_str(domain, domain);
> - __assign_str(path, path);
> + __assign_str(domain);
> + __assign_str(path);
>   ),
>   TP_printk("domain=%s path=%s maxsize=%d",
>   __get_str(domain), __get_str(path), __entry->maxsize
> @@ -1874,7 +1874,7 @@ TRACE_EVENT(nfsd_ctl_version,
>   ),
>   TP_fast_assign(
>   __entry->netns_ino = net->ns.inum;
> - __assign_str(mesg, mesg);
> + __assign_str(mesg);
>   ),
>   TP_printk("%s",
>   __get_str(mesg)
> @@ -1915,7 +1915,7 @@ TRACE_EVENT(nfsd_ctl_ports_addxprt,
>   TP_fast_assign(
>   __entry->netns_ino = net->ns.inum;
>   __entry->port = port;
> - __assign_str(transport, transport);
> + __assign_str(transport);
>   ),
>   TP_printk("transport=%s port=%d",
>   __get_str(transport), __entry->port
> @@ -1976,7 +1976,7 @@ TRACE_EVENT(nfsd_ctl_time,
>   TP_fast_assign(
>   __entry->netns_ino = net->ns.inum;
>   __entry->time = time;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("file=%s time=%d\n",
>   __get_str(name), __entry->time
> @@ -1995,7 +1995,7 @@ TRACE_EVENT(nfsd_ctl_recoverydir,
>   ),
>   TP_fast_assign(
>   __entry->netns_ino = net->ns.inum;
> - __assign_str(recdir, recdir);
> + __assign_str(recdir);
>   ),
>   TP_printk("recdir=%s",
>   __get_str(recdir)
> diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
> index 9898c11bdfa1..60e208b01c8d 100644
> --- a/fs/ocfs2/ocfs2_trace.h
> +++ b/fs/ocfs2/ocfs2_trace.h
> @@ -82,7 +82,7 @@ DECLARE_EVENT_CLASS(ocfs2__string,
>   __string(name,name)
>   ),
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("%s", __get_str(name))
>  );
> @@ -1289,7 +1289,7 @@ DECLARE_EVENT_CLASS(ocfs2__file_ops,
>   __entry->dentry = dentry;
>   __entry->ino = ino;
>   __entry->d_len = d_len;
> - __assign_str(d_name, d_name);
> + __assign_str(d_name);
>   __entry->para = para;
>   ),
>   TP_printk("%p %p %p %llu %llu %.*s", __entry->inode,
> __entry->file,
> @@ -1425,7 +1425,7 @@ TRACE_EVENT(ocfs2_setattr,
>   __entry->dentry = dentry;
>   __entry->ino = ino;
>   __entry->d_len = d_len;
> - __assign_str(d_name, d_name);
> + __assign_str(d_name);
>   __entry->ia_valid = ia_valid;
>   __entry->ia_mode = ia_mode;
>   __entry->ia_uid = ia_uid;
> @@ -1683,7 +1683,7 @@ TRACE_EVENT(ocfs2_parse_options,
>   ),
>   TP_fast_assign(
>   __entry->is_remount = is_remount;
> - __assign_str(options, options);
> + __assign_str(options);
>   ),
>   TP_printk("%d %s", __entry->is_remount, __get_str(options))
>  );
> @@ -1718,8 +1718,8 @@ TRACE_EVENT(ocfs2_initialize_super,
>   __field(int, cluster_bits)
>   ),
>   TP_fast_assign(
> - __assign_str(label, label);
> - __assign_str(uuid_str, uuid_str);
> + __assign_str(label);
> + __assign_str(uuid_str);
>   __entry->root_dir = root_dir;
>   __entry->system_dir = system_dir;
>   __entry->cluster_bits = cluster_bits;
> @@ -1746,7 +1746,7 @@ TRACE_EVENT(ocfs2_init_xattr_set_ctxt,
>   __field(int, credits)
>   ),
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->meta = meta;
>   __entry->clusters = clusters;
>   __entry->credits = credits;
> @@ -1770,7 +1770,7 @@ DECLARE_EVENT_CLASS(ocfs2__xattr_find,
>   ),
>   TP_fast_assign(
>   __entry->ino = ino;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->name_index = name_index;
>   __entry->hash = hash;
>   __entry->location = location;
> @@ -2019,7 +2019,7 @@ TRACE_EVENT(ocfs2_sync_dquot_helper,
>   __entry->dq_id = dq_id;
>   __entry->dq_type = dq_type;
>   __entry->type = type;
> - __assign_str(s_id, s_id);
> + __assign_str(s_id);
>   ),
>   TP_printk("%u %u %lu %s", __entry->dq_id, __entry->dq_type,
>     __entry->type, __get_str(s_id))
> @@ -2060,7 +2060,7 @@ TRACE_EVENT(ocfs2_dx_dir_search,
>   TP_fast_assign(
>   __entry->ino = ino;
>   __entry->namelen = namelen;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->major_hash = major_hash;
>   __entry->minor_hash = minor_hash;
>   __entry->blkno = blkno;
> @@ -2088,7 +2088,7 @@ TRACE_EVENT(ocfs2_find_files_on_disk,
>   ),
>   TP_fast_assign(
>   __entry->namelen = namelen;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->blkno = blkno;
>   __entry->dir = dir;
>   ),
> @@ -2107,7 +2107,7 @@ TRACE_EVENT(ocfs2_check_dir_for_entry,
>   TP_fast_assign(
>   __entry->dir = dir;
>   __entry->namelen = namelen;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("%llu %.*s", __entry->dir,
>     __entry->namelen, __get_str(name))
> @@ -2135,7 +2135,7 @@ TRACE_EVENT(ocfs2_dx_dir_index_root_block,
>   __entry->major_hash = major_hash;
>   __entry->minor_hash = minor_hash;
>   __entry->namelen = namelen;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->num_used = num_used;
>   ),
>   TP_printk("%llu %x %x %.*s %u", __entry->dir,
> @@ -2171,7 +2171,7 @@ DECLARE_EVENT_CLASS(ocfs2__dentry_ops,
>   __entry->dir = dir;
>   __entry->dentry = dentry;
>   __entry->name_len = name_len;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->dir_blkno = dir_blkno;
>   __entry->extra = extra;
>   ),
> @@ -2217,7 +2217,7 @@ TRACE_EVENT(ocfs2_mknod,
>   __entry->dir = dir;
>   __entry->dentry = dentry;
>   __entry->name_len = name_len;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->dir_blkno = dir_blkno;
>   __entry->dev = dev;
>   __entry->mode = mode;
> @@ -2241,9 +2241,9 @@ TRACE_EVENT(ocfs2_link,
>   TP_fast_assign(
>   __entry->ino = ino;
>   __entry->old_len = old_len;
> - __assign_str(old_name, old_name);
> + __assign_str(old_name);
>   __entry->name_len = name_len;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("%llu %.*s %.*s", __entry->ino,
>     __entry->old_len, __get_str(old_name),
> @@ -2279,9 +2279,9 @@ TRACE_EVENT(ocfs2_rename,
>   __entry->new_dir = new_dir;
>   __entry->new_dentry = new_dentry;
>   __entry->old_len = old_len;
> - __assign_str(old_name, old_name);
> + __assign_str(old_name);
>   __entry->new_len = new_len;
> - __assign_str(new_name, new_name);
> + __assign_str(new_name);
>   ),
>   TP_printk("%p %p %p %p %.*s %.*s",
>     __entry->old_dir, __entry->old_dentry,
> @@ -2301,7 +2301,7 @@ TRACE_EVENT(ocfs2_rename_target_exists,
>   ),
>   TP_fast_assign(
>   __entry->new_len = new_len;
> - __assign_str(new_name, new_name);
> + __assign_str(new_name);
>   ),
>   TP_printk("%.*s", __entry->new_len, __get_str(new_name))
>  );
> @@ -2344,7 +2344,7 @@ TRACE_EVENT(ocfs2_symlink_begin,
>   __entry->dentry = dentry;
>   __entry->symname = symname;
>   __entry->len = len;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("%p %p %s %.*s", __entry->dir, __entry->dentry,
>     __entry->symname, __entry->len, __get_str(name))
> @@ -2360,7 +2360,7 @@ TRACE_EVENT(ocfs2_blkno_stringify,
>   ),
>   TP_fast_assign(
>   __entry->blkno = blkno;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->namelen = namelen;
>   ),
>   TP_printk("%llu %s %d", __entry->blkno, __get_str(name),
> @@ -2381,7 +2381,7 @@ TRACE_EVENT(ocfs2_orphan_del,
>   ),
>   TP_fast_assign(
>   __entry->dir = dir;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->namelen = namelen;
>   ),
>   TP_printk("%llu %s %d", __entry->dir, __get_str(name),
> @@ -2403,7 +2403,7 @@ TRACE_EVENT(ocfs2_dentry_revalidate,
>   TP_fast_assign(
>   __entry->dentry = dentry;
>   __entry->len = len;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("%p %.*s", __entry->dentry, __entry->len,
> __get_str(name))
>  );
> @@ -2420,7 +2420,7 @@ TRACE_EVENT(ocfs2_dentry_revalidate_negative,
>   ),
>   TP_fast_assign(
>   __entry->len = len;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->pgen = pgen;
>   __entry->gen = gen;
>   ),
> @@ -2445,7 +2445,7 @@ TRACE_EVENT(ocfs2_find_local_alias,
>   ),
>   TP_fast_assign(
>   __entry->len = len;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>   TP_printk("%.*s", __entry->len, __get_str(name))
>  );
> @@ -2462,7 +2462,7 @@ TRACE_EVENT(ocfs2_dentry_attach_lock,
>   ),
>   TP_fast_assign(
>   __entry->len = len;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->parent = parent;
>   __entry->fsdata = fsdata;
>   ),
> @@ -2480,7 +2480,7 @@ TRACE_EVENT(ocfs2_dentry_attach_lock_found,
>   __field(unsigned long long, ino)
>   ),
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->parent = parent;
>   __entry->ino = ino;
>   ),
> @@ -2527,7 +2527,7 @@ TRACE_EVENT(ocfs2_get_parent,
>   TP_fast_assign(
>   __entry->child = child;
>   __entry->len = len;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->ino = ino;
>   ),
>   TP_printk("%p %.*s %llu", __entry->child, __entry->len,
> @@ -2551,7 +2551,7 @@ TRACE_EVENT(ocfs2_encode_fh_begin,
>   TP_fast_assign(
>   __entry->dentry = dentry;
>   __entry->name_len = name_len;
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->fh = fh;
>   __entry->len = len;
>   __entry->connectable = connectable;
> diff --git a/fs/smb/client/trace.h b/fs/smb/client/trace.h
> index af97389e983e..36d47ce59631 100644
> --- a/fs/smb/client/trace.h
> +++ b/fs/smb/client/trace.h
> @@ -518,7 +518,7 @@
> DECLARE_EVENT_CLASS(smb3_inf_compound_enter_class,
>   __entry->xid = xid;
>   __entry->tid = tid;
>   __entry->sesid = sesid;
> - __assign_str(path, full_path);
> + __assign_str(path);
>   ),
>   TP_printk("xid=%u sid=0x%llx tid=0x%x path=%s",
>   __entry->xid, __entry->sesid, __entry->tid,
> @@ -762,7 +762,7 @@ DECLARE_EVENT_CLASS(smb3_exit_err_class,
>   ),
>   TP_fast_assign(
>   __entry->xid = xid;
> - __assign_str(func_name, func_name);
> + __assign_str(func_name);
>   __entry->rc = rc;
>   ),
>   TP_printk("\t%s: xid=%u rc=%d",
> @@ -815,7 +815,7 @@ DECLARE_EVENT_CLASS(smb3_enter_exit_class,
>   ),
>   TP_fast_assign(
>   __entry->xid = xid;
> - __assign_str(func_name, func_name);
> + __assign_str(func_name);
>   ),
>   TP_printk("\t%s: xid=%u",
>   __get_str(func_name), __entry->xid)
> @@ -852,7 +852,7 @@ DECLARE_EVENT_CLASS(smb3_tcon_class,
>   __entry->xid = xid;
>   __entry->tid = tid;
>   __entry->sesid = sesid;
> - __assign_str(name, unc_name);
> + __assign_str(name);
>   __entry->rc = rc;
>   ),
>   TP_printk("xid=%u sid=0x%llx tid=0x%x unc_name=%s rc=%d",
> @@ -896,7 +896,7 @@ DECLARE_EVENT_CLASS(smb3_open_enter_class,
>   __entry->xid = xid;
>   __entry->tid = tid;
>   __entry->sesid = sesid;
> - __assign_str(path, full_path);
> + __assign_str(path);
>   __entry->create_options = create_options;
>   __entry->desired_access = desired_access;
>   ),
> @@ -1098,7 +1098,7 @@ DECLARE_EVENT_CLASS(smb3_connect_class,
>   __entry->conn_id = conn_id;
>   pss = (struct sockaddr_storage *)__entry->dst_addr;
>   *pss = *dst_addr;
> - __assign_str(hostname, hostname);
> + __assign_str(hostname);
>   ),
>   TP_printk("conn_id=0x%llx server=%s addr=%pISpsfc",
>   __entry->conn_id,
> @@ -1134,7 +1134,7 @@ DECLARE_EVENT_CLASS(smb3_connect_err_class,
>   __entry->rc = rc;
>   pss = (struct sockaddr_storage *)__entry->dst_addr;
>   *pss = *dst_addr;
> - __assign_str(hostname, hostname);
> + __assign_str(hostname);
>   ),
>   TP_printk("rc=%d conn_id=0x%llx server=%s addr=%pISpsfc",
>   __entry->rc,
> @@ -1166,7 +1166,7 @@ DECLARE_EVENT_CLASS(smb3_reconnect_class,
>   TP_fast_assign(
>   __entry->currmid = currmid;
>   __entry->conn_id = conn_id;
> - __assign_str(hostname, hostname);
> + __assign_str(hostname);
>   ),
>   TP_printk("conn_id=0x%llx server=%s current_mid=%llu",
>   __entry->conn_id,
> @@ -1255,7 +1255,7 @@ DECLARE_EVENT_CLASS(smb3_credit_class,
>   TP_fast_assign(
>   __entry->currmid = currmid;
>   __entry->conn_id = conn_id;
> - __assign_str(hostname, hostname);
> + __assign_str(hostname);
>   __entry->credits = credits;
>   __entry->credits_to_add = credits_to_add;
>   __entry->in_flight = in_flight;
> diff --git a/fs/xfs/scrub/trace.h b/fs/xfs/scrub/trace.h
> index 5b294be52c55..2f728fc493d7 100644
> --- a/fs/xfs/scrub/trace.h
> +++ b/fs/xfs/scrub/trace.h
> @@ -475,7 +475,7 @@ TRACE_EVENT(xchk_btree_op_error,
>
>   __entry->dev = sc->mp->m_super->s_dev;
>   __entry->type = sc->sm->sm_type;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->level = level;
>   __entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
>   __entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
> @@ -518,7 +518,7 @@ TRACE_EVENT(xchk_ifork_btree_op_error,
>   __entry->ino = sc->ip->i_ino;
>   __entry->whichfork = cur->bc_ino.whichfork;
>   __entry->type = sc->sm->sm_type;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->level = level;
>   __entry->ptr = cur->bc_levels[level].ptr;
>   __entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
> @@ -558,7 +558,7 @@ TRACE_EVENT(xchk_btree_error,
>   xfs_fsblock_t fsbno = xchk_btree_cur_fsbno(cur,
> level);
>   __entry->dev = sc->mp->m_super->s_dev;
>   __entry->type = sc->sm->sm_type;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->level = level;
>   __entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
>   __entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
> @@ -598,7 +598,7 @@ TRACE_EVENT(xchk_ifork_btree_error,
>   __entry->ino = sc->ip->i_ino;
>   __entry->whichfork = cur->bc_ino.whichfork;
>   __entry->type = sc->sm->sm_type;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->level = level;
>   __entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
>   __entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
> @@ -637,7 +637,7 @@ DECLARE_EVENT_CLASS(xchk_sbtree_class,
>
>   __entry->dev = sc->mp->m_super->s_dev;
>   __entry->type = sc->sm->sm_type;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
>   __entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
>   __entry->level = level;
> diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
> index aea97fc074f8..3032b56dcdc3 100644
> --- a/fs/xfs/xfs_trace.h
> +++ b/fs/xfs/xfs_trace.h
> @@ -159,7 +159,7 @@ TRACE_EVENT(xlog_intent_recovery_failed,
>   ),
>   TP_fast_assign(
>   __entry->dev = mp->m_super->s_dev;
> - __assign_str(name, ops->name);
> + __assign_str(name);
>   __entry->error = error;
>   ),
>   TP_printk("dev %d:%d optype %s error %d",
> @@ -1905,7 +1905,7 @@ TRACE_EVENT(xfs_alloc_cur_check,
>   ),
>   TP_fast_assign(
>   __entry->dev = cur->bc_mp->m_super->s_dev;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->bno = bno;
>   __entry->len = len;
>   __entry->diff = diff;
> @@ -2467,7 +2467,7 @@ DECLARE_EVENT_CLASS(xfs_btree_cur_class,
>   ),
>   TP_fast_assign(
>   __entry->dev = cur->bc_mp->m_super->s_dev;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->level = level;
>   __entry->nlevels = cur->bc_nlevels;
>   __entry->ptr = cur->bc_levels[level].ptr;
> @@ -2517,7 +2517,7 @@ TRACE_EVENT(xfs_btree_alloc_block,
>   __entry->ino = 0;
>   break;
>   }
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->error = error;
>   if (!error && stat) {
>   if (cur->bc_ops->ptr_len ==
> XFS_BTREE_LONG_PTR_LEN) {
> @@ -2561,7 +2561,7 @@ TRACE_EVENT(xfs_btree_free_block,
>   __entry->ino = cur->bc_ino.ip->i_ino;
>   else
>   __entry->ino = 0;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->agbno = xfs_daddr_to_agbno(cur->bc_mp,
>   xfs_buf_dadd
> r(bp));
>   ),
> @@ -2637,7 +2637,7 @@ DECLARE_EVENT_CLASS(xfs_defer_pending_class,
>   ),
>   TP_fast_assign(
>   __entry->dev = mp ? mp->m_super->s_dev : 0;
> - __assign_str(name, dfp->dfp_ops->name);
> + __assign_str(name);
>   __entry->intent = dfp->dfp_intent;
>   __entry->flags = dfp->dfp_flags;
>   __entry->committed = dfp->dfp_done != NULL;
> @@ -2726,7 +2726,7 @@
> DECLARE_EVENT_CLASS(xfs_defer_pending_item_class,
>   ),
>   TP_fast_assign(
>   __entry->dev = mp ? mp->m_super->s_dev : 0;
> - __assign_str(name, dfp->dfp_ops->name);
> + __assign_str(name);
>   __entry->intent = dfp->dfp_intent;
>   __entry->item = item;
>   __entry->committed = dfp->dfp_done != NULL;
> @@ -4239,7 +4239,7 @@ TRACE_EVENT(xfs_btree_commit_afakeroot,
>   ),
>   TP_fast_assign(
>   __entry->dev = cur->bc_mp->m_super->s_dev;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->agno = cur->bc_ag.pag->pag_agno;
>   __entry->agbno = cur->bc_ag.afake->af_root;
>   __entry->levels = cur->bc_ag.afake->af_levels;
> @@ -4268,7 +4268,7 @@ TRACE_EVENT(xfs_btree_commit_ifakeroot,
>   ),
>   TP_fast_assign(
>   __entry->dev = cur->bc_mp->m_super->s_dev;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->agno = XFS_INO_TO_AGNO(cur->bc_mp,
>   cur->bc_ino.ip->i_ino);
>   __entry->agino = XFS_INO_TO_AGINO(cur->bc_mp,
> @@ -4307,7 +4307,7 @@ TRACE_EVENT(xfs_btree_bload_level_geometry,
>   ),
>   TP_fast_assign(
>   __entry->dev = cur->bc_mp->m_super->s_dev;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->level = level;
>   __entry->nlevels = cur->bc_nlevels;
>   __entry->nr_this_level = nr_this_level;
> @@ -4345,7 +4345,7 @@ TRACE_EVENT(xfs_btree_bload_block,
>   ),
>   TP_fast_assign(
>   __entry->dev = cur->bc_mp->m_super->s_dev;
> - __assign_str(name, cur->bc_ops->name);
> + __assign_str(name);
>   __entry->level = level;
>   __entry->block_idx = block_idx;
>   __entry->nr_blocks = nr_blocks;
> @@ -4568,7 +4568,7 @@ TRACE_EVENT(xfs_force_shutdown,
>   __entry->dev = mp->m_super->s_dev;
>   __entry->ptag = ptag;
>   __entry->flags = flags;
> - __assign_str(fname, fname);
> + __assign_str(fname);
>   __entry->line_num = line_num;
>   ),
>   TP_printk("dev %d:%d tag %s flags %s file %s line_num %d",
> @@ -4750,7 +4750,7 @@ DECLARE_EVENT_CLASS(xfbtree_freesp_class,
>   ),
>   TP_fast_assign(
>   __entry->xfino = file_inode(xfbt->target->bt_file)-
> >i_ino;
> - __assign_str(btname, cur->bc_ops->name);
> + __assign_str(btname);
>   __entry->nlevels = cur->bc_nlevels;
>   __entry->fileoff = fileoff;
>   ),
> diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
> index c011ea236e9b..7c47151d5c72 100644
> --- a/include/ras/ras_event.h
> +++ b/include/ras/ras_event.h
> @@ -61,7 +61,7 @@ TRACE_EVENT(extlog_mem_event,
>   else
>   __entry->pa_mask_lsb = ~0;
>   __entry->fru_id = *fru_id;
> - __assign_str(fru_text, fru_text);
> + __assign_str(fru_text);
>   cper_mem_err_pack(mem, &__entry->data);
>   ),
>
> @@ -131,8 +131,8 @@ TRACE_EVENT(mc_event,
>
>   TP_fast_assign(
>   __entry->error_type = err_type;
> - __assign_str(msg, error_msg);
> - __assign_str(label, label);
> + __assign_str(msg);
> + __assign_str(label);
>   __entry->error_count = error_count;
>   __entry->mc_index = mc_index;
>   __entry->top_layer = top_layer;
> @@ -141,7 +141,7 @@ TRACE_EVENT(mc_event,
>   __entry->address = address;
>   __entry->grain_bits = grain_bits;
>   __entry->syndrome = syndrome;
> - __assign_str(driver_detail, driver_detail);
> + __assign_str(driver_detail);
>   ),
>
>   TP_printk("%d %s error%s:%s%s on %s (mc:%d location:%d:%d:%d
> address:0x%08lx grain:%d syndrome:0x%08lx%s%s)",
> @@ -239,7 +239,7 @@ TRACE_EVENT(non_standard_event,
>   TP_fast_assign(
>   memcpy(__entry->sec_type, sec_type, UUID_SIZE);
>   memcpy(__entry->fru_id, fru_id, UUID_SIZE);
> - __assign_str(fru_text, fru_text);
> + __assign_str(fru_text);
>   __entry->sev = sev;
>   __entry->len = len;
>   memcpy(__get_dynamic_array(buf), err, len);
> @@ -313,7 +313,7 @@ TRACE_EVENT(aer_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name);
> + __assign_str(dev_name);
>   __entry->status = status;
>   __entry->severity = severity;
>   __entry->tlp_header_valid = tlp_header_valid;
> diff --git a/include/trace/events/asoc.h
> b/include/trace/events/asoc.h
> index 4eed9028bb11..c33dcb556ae0 100644
> --- a/include/trace/events/asoc.h
> +++ b/include/trace/events/asoc.h
> @@ -30,8 +30,8 @@ DECLARE_EVENT_CLASS(snd_soc_dapm,
>   ),
>
>   TP_fast_assign(
> - __assign_str(card_name, dapm->card->name);
> - __assign_str(comp_name, dapm->component ? dapm-
> >component->name : "(none)");
> + __assign_str(card_name);
> + __assign_str(comp_name);
>   __entry->val = val;
>   ),
>
> @@ -67,7 +67,7 @@ DECLARE_EVENT_CLASS(snd_soc_dapm_basic,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, card->name);
> + __assign_str(name);
>   __entry->event = event;
>   ),
>
> @@ -102,7 +102,7 @@ DECLARE_EVENT_CLASS(snd_soc_dapm_widget,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, w->name);
> + __assign_str(name);
>   __entry->val = val;
>   ),
>
> @@ -148,7 +148,7 @@ TRACE_EVENT(snd_soc_dapm_walk_done,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, card->name);
> + __assign_str(name);
>   __entry->power_checks = card-
> >dapm_stats.power_checks;
>   __entry->path_checks = card->dapm_stats.path_checks;
>   __entry->neighbour_checks = card-
> >dapm_stats.neighbour_checks;
> @@ -177,9 +177,9 @@ TRACE_EVENT(snd_soc_dapm_path,
>   ),
>
>   TP_fast_assign(
> - __assign_str(wname, widget->name);
> - __assign_str(pname, path->name ? path->name :
> DAPM_DIRECT);
> - __assign_str(pnname, path->node[dir]->name);
> + __assign_str(wname);
> + __assign_str(pname);
> + __assign_str(pnname);
>   __entry->path_connect = path->connect;
>   __entry->path_node = (long)path->node[dir];
>   __entry->path_dir = dir;
> @@ -224,7 +224,7 @@ TRACE_EVENT(snd_soc_jack_irq,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>
>   TP_printk("%s", __get_str(name))
> @@ -243,7 +243,7 @@ TRACE_EVENT(snd_soc_jack_report,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, jack->jack->id);
> + __assign_str(name);
>   __entry->mask = mask;
>   __entry->val = val;
>   ),
> @@ -264,7 +264,7 @@ TRACE_EVENT(snd_soc_jack_notify,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, jack->jack->id);
> + __assign_str(name);
>   __entry->val = val;
>   ),
>
> diff --git a/include/trace/events/avc.h b/include/trace/events/avc.h
> index b55fda2e0773..fed0f141d5f6 100644
> --- a/include/trace/events/avc.h
> +++ b/include/trace/events/avc.h
> @@ -36,9 +36,9 @@ TRACE_EVENT(selinux_audited,
>   __entry->denied = sad->denied;
>   __entry->audited = sad->audited;
>   __entry->result = sad->result;
> - __assign_str(tcontext, tcontext);
> - __assign_str(scontext, scontext);
> - __assign_str(tclass, tclass);
> + __assign_str(tcontext);
> + __assign_str(scontext);
> + __assign_str(tclass);
>   ),
>
>   TP_printk("requested=0x%x denied=0x%x audited=0x%x result=%d
> scontext=%s tcontext=%s tclass=%s",
> diff --git a/include/trace/events/bridge.h
> b/include/trace/events/bridge.h
> index a6b3a4e409f0..3fe4725c83ff 100644
> --- a/include/trace/events/bridge.h
> +++ b/include/trace/events/bridge.h
> @@ -25,7 +25,7 @@ TRACE_EVENT(br_fdb_add,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, dev->name);
> + __assign_str(dev);
>   memcpy(__entry->addr, addr, ETH_ALEN);
>   __entry->vid = vid;
>   __entry->nlh_flags = nlh_flags;
> @@ -54,8 +54,8 @@ TRACE_EVENT(br_fdb_external_learn_add,
>   ),
>
>   TP_fast_assign(
> - __assign_str(br_dev, br->dev->name);
> - __assign_str(dev, p ? p->dev->name : "null");
> + __assign_str(br_dev);
> + __assign_str(dev);
>   memcpy(__entry->addr, addr, ETH_ALEN);
>   __entry->vid = vid;
>   ),
> @@ -80,8 +80,8 @@ TRACE_EVENT(fdb_delete,
>   ),
>
>   TP_fast_assign(
> - __assign_str(br_dev, br->dev->name);
> - __assign_str(dev, f->dst ? f->dst->dev->name :
> "null");
> + __assign_str(br_dev);
> + __assign_str(dev);
>   memcpy(__entry->addr, f->key.addr.addr, ETH_ALEN);
>   __entry->vid = f->key.vlan_id;
>   ),
> @@ -108,8 +108,8 @@ TRACE_EVENT(br_fdb_update,
>   ),
>
>   TP_fast_assign(
> - __assign_str(br_dev, br->dev->name);
> - __assign_str(dev, source->dev->name);
> + __assign_str(br_dev);
> + __assign_str(dev);
>   memcpy(__entry->addr, addr, ETH_ALEN);
>   __entry->vid = vid;
>   __entry->flags = flags;
> @@ -141,7 +141,7 @@ TRACE_EVENT(br_mdb_full,
>   TP_fast_assign(
>   struct in6_addr *in6;
>
> - __assign_str(dev, dev->name);
> + __assign_str(dev);
>   __entry->vid = group->vid;
>
>   if (!group->proto) {
> diff --git a/include/trace/events/btrfs.h
> b/include/trace/events/btrfs.h
> index d2d94d7c3fb5..fadf406b5260 100644
> --- a/include/trace/events/btrfs.h
> +++ b/include/trace/events/btrfs.h
> @@ -1140,7 +1140,7 @@ TRACE_EVENT(btrfs_space_reservation,
>   ),
>
>   TP_fast_assign_btrfs(fs_info,
> - __assign_str(type, type);
> + __assign_str(type);
>   __entry->val = val;
>   __entry->bytes = bytes;
>   __entry->reserve = reserve;
> @@ -1169,7 +1169,7 @@ TRACE_EVENT(btrfs_trigger_flush,
>   __entry->flags = flags;
>   __entry->bytes = bytes;
>   __entry->flush = flush;
> - __assign_str(reason, reason);
> + __assign_str(reason);
>   ),
>
>   TP_printk_btrfs("%s: flush=%d(%s) flags=%llu(%s)
> bytes=%llu",
> @@ -1622,7 +1622,7 @@ DECLARE_EVENT_CLASS(btrfs_workqueue,
>
>   TP_fast_assign_btrfs(btrfs_workqueue_owner(wq),
>   __entry->wq = wq;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>
>   TP_printk_btrfs("name=%s wq=%p", __get_str(name),
> diff --git a/include/trace/events/cgroup.h
> b/include/trace/events/cgroup.h
> index dd7d7c9efecd..ff2e8eca9c91 100644
> --- a/include/trace/events/cgroup.h
> +++ b/include/trace/events/cgroup.h
> @@ -23,7 +23,7 @@ DECLARE_EVENT_CLASS(cgroup_root,
>   TP_fast_assign(
>   __entry->root = root->hierarchy_id;
>   __entry->ss_mask = root->subsys_mask;
> - __assign_str(name, root->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("root=%d ss_mask=%#x name=%s",
> @@ -68,7 +68,7 @@ DECLARE_EVENT_CLASS(cgroup,
>   __entry->root = cgrp->root->hierarchy_id;
>   __entry->id = cgroup_id(cgrp);
>   __entry->level = cgrp->level;
> - __assign_str(path, path);
> + __assign_str(path);
>   ),
>
>   TP_printk("root=%d id=%llu level=%d path=%s",
> @@ -137,9 +137,9 @@ DECLARE_EVENT_CLASS(cgroup_migrate,
>   __entry->dst_root = dst_cgrp->root->hierarchy_id;
>   __entry->dst_id = cgroup_id(dst_cgrp);
>   __entry->dst_level = dst_cgrp->level;
> - __assign_str(dst_path, path);
> + __assign_str(dst_path);
>   __entry->pid = task->pid;
> - __assign_str(comm, task->comm);
> + __assign_str(comm);
>   ),
>
>   TP_printk("dst_root=%d dst_id=%llu dst_level=%d dst_path=%s
> pid=%d comm=%s",
> @@ -181,7 +181,7 @@ DECLARE_EVENT_CLASS(cgroup_event,
>   __entry->root = cgrp->root->hierarchy_id;
>   __entry->id = cgroup_id(cgrp);
>   __entry->level = cgrp->level;
> - __assign_str(path, path);
> + __assign_str(path);
>   __entry->val = val;
>   ),
>
> diff --git a/include/trace/events/clk.h b/include/trace/events/clk.h
> index daed3c7a48c1..759f7371a6dc 100644
> --- a/include/trace/events/clk.h
> +++ b/include/trace/events/clk.h
> @@ -23,7 +23,7 @@ DECLARE_EVENT_CLASS(clk,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, core->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("%s", __get_str(name))
> @@ -97,7 +97,7 @@ DECLARE_EVENT_CLASS(clk_rate,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, core->name);
> + __assign_str(name);
>   __entry->rate = rate;
>   ),
>
> @@ -145,7 +145,7 @@ DECLARE_EVENT_CLASS(clk_rate_range,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, core->name);
> + __assign_str(name);
>   __entry->min = min;
>   __entry->max = max;
>   ),
> @@ -174,8 +174,8 @@ DECLARE_EVENT_CLASS(clk_parent,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, core->name);
> - __assign_str(pname, parent ? parent->name : "none");
> + __assign_str(name);
> + __assign_str(pname);
>   ),
>
>   TP_printk("%s %s", __get_str(name), __get_str(pname))
> @@ -207,7 +207,7 @@ DECLARE_EVENT_CLASS(clk_phase,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, core->name);
> + __assign_str(name);
>   __entry->phase = phase;
>   ),
>
> @@ -241,7 +241,7 @@ DECLARE_EVENT_CLASS(clk_duty_cycle,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, core->name);
> + __assign_str(name);
>   __entry->num = duty->num;
>   __entry->den = duty->den;
>   ),
> @@ -279,8 +279,8 @@ DECLARE_EVENT_CLASS(clk_rate_request,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, req->core ? req->core->name :
> "none");
> - __assign_str(pname, req->best_parent_hw ?
> clk_hw_get_name(req->best_parent_hw) : "none");
> + __assign_str(name);
> + __assign_str(pname);
>   __entry->min = req->min_rate;
>   __entry->max = req->max_rate;
>   __entry->prate = req->best_parent_rate;
> diff --git a/include/trace/events/cma.h b/include/trace/events/cma.h
> index 25103e67737c..383c09f583ac 100644
> --- a/include/trace/events/cma.h
> +++ b/include/trace/events/cma.h
> @@ -23,7 +23,7 @@ TRACE_EVENT(cma_release,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->pfn = pfn;
>   __entry->page = page;
>   __entry->count = count;
> @@ -49,7 +49,7 @@ TRACE_EVENT(cma_alloc_start,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->count = count;
>   __entry->align = align;
>   ),
> @@ -77,7 +77,7 @@ TRACE_EVENT(cma_alloc_finish,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->pfn = pfn;
>   __entry->page = page;
>   __entry->count = count;
> @@ -110,7 +110,7 @@ TRACE_EVENT(cma_alloc_busy_retry,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->pfn = pfn;
>   __entry->page = page;
>   __entry->count = count;
> diff --git a/include/trace/events/devfreq.h
> b/include/trace/events/devfreq.h
> index 7627c620bbda..6cbc4d59fd96 100644
> --- a/include/trace/events/devfreq.h
> +++ b/include/trace/events/devfreq.h
> @@ -23,7 +23,7 @@ TRACE_EVENT(devfreq_frequency,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name(&devfreq->dev));
> + __assign_str(dev_name);
>   __entry->freq = freq;
>   __entry->prev_freq = prev_freq;
>   __entry->busy_time = devfreq->last_status.busy_time;
> @@ -54,7 +54,7 @@ TRACE_EVENT(devfreq_monitor,
>   __entry->busy_time = devfreq->last_status.busy_time;
>   __entry->total_time = devfreq-
> >last_status.total_time;
>   __entry->polling_ms = devfreq->profile->polling_ms;
> - __assign_str(dev_name, dev_name(&devfreq->dev));
> + __assign_str(dev_name);
>   ),
>
>   TP_printk("dev_name=%-30s freq=%-12lu polling_ms=%-3u
> load=%-2lu",
> diff --git a/include/trace/events/devlink.h
> b/include/trace/events/devlink.h
> index 77ff7cfc6049..f241e204fe6b 100644
> --- a/include/trace/events/devlink.h
> +++ b/include/trace/events/devlink.h
> @@ -31,9 +31,9 @@ TRACE_EVENT(devlink_hwmsg,
>   ),
>
>   TP_fast_assign(
> - __assign_str(bus_name, devlink_to_dev(devlink)->bus-
> >name);
> - __assign_str(dev_name,
> dev_name(devlink_to_dev(devlink)));
> - __assign_str(driver_name, devlink_to_dev(devlink)-
> >driver->name);
> + __assign_str(bus_name);
> + __assign_str(dev_name);
> + __assign_str(driver_name);
>   __entry->incoming = incoming;
>   __entry->type = type;
>   memcpy(__get_dynamic_array(buf), buf, len);
> @@ -63,11 +63,11 @@ TRACE_EVENT(devlink_hwerr,
>   ),
>
>   TP_fast_assign(
> - __assign_str(bus_name, devlink_to_dev(devlink)->bus-
> >name);
> - __assign_str(dev_name,
> dev_name(devlink_to_dev(devlink)));
> - __assign_str(driver_name, devlink_to_dev(devlink)-
> >driver->name);
> + __assign_str(bus_name);
> + __assign_str(dev_name);
> + __assign_str(driver_name);
>   __entry->err = err;
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   ),
>
>   TP_printk("bus_name=%s dev_name=%s driver_name=%s err=%d
> %s",
> @@ -93,11 +93,11 @@ TRACE_EVENT(devlink_health_report,
>   ),
>
>   TP_fast_assign(
> - __assign_str(bus_name, devlink_to_dev(devlink)->bus-
> >name);
> - __assign_str(dev_name,
> dev_name(devlink_to_dev(devlink)));
> - __assign_str(driver_name, devlink_to_dev(devlink)-
> >driver->name);
> - __assign_str(reporter_name, reporter_name);
> - __assign_str(msg, msg);
> + __assign_str(bus_name);
> + __assign_str(dev_name);
> + __assign_str(driver_name);
> + __assign_str(reporter_name);
> + __assign_str(msg);
>   ),
>
>   TP_printk("bus_name=%s dev_name=%s driver_name=%s
> reporter_name=%s: %s",
> @@ -125,10 +125,10 @@ TRACE_EVENT(devlink_health_recover_aborted,
>   ),
>
>   TP_fast_assign(
> - __assign_str(bus_name, devlink_to_dev(devlink)->bus-
> >name);
> - __assign_str(dev_name,
> dev_name(devlink_to_dev(devlink)));
> - __assign_str(driver_name, devlink_to_dev(devlink)-
> >driver->name);
> - __assign_str(reporter_name, reporter_name);
> + __assign_str(bus_name);
> + __assign_str(dev_name);
> + __assign_str(driver_name);
> + __assign_str(reporter_name);
>   __entry->health_state = health_state;
>   __entry->time_since_last_recover =
> time_since_last_recover;
>   ),
> @@ -158,10 +158,10 @@
> TRACE_EVENT(devlink_health_reporter_state_update,
>   ),
>
>   TP_fast_assign(
> - __assign_str(bus_name, devlink_to_dev(devlink)->bus-
> >name);
> - __assign_str(dev_name,
> dev_name(devlink_to_dev(devlink)));
> - __assign_str(driver_name, devlink_to_dev(devlink)-
> >driver->name);
> - __assign_str(reporter_name, reporter_name);
> + __assign_str(bus_name);
> + __assign_str(dev_name);
> + __assign_str(driver_name);
> + __assign_str(reporter_name);
>   __entry->new_state = new_state;
>   ),
>
> @@ -192,11 +192,11 @@ TRACE_EVENT(devlink_trap_report,
>   TP_fast_assign(
>   struct net_device *input_dev = metadata->input_dev;
>
> - __assign_str(bus_name, devlink_to_dev(devlink)->bus-
> >name);
> - __assign_str(dev_name,
> dev_name(devlink_to_dev(devlink)));
> - __assign_str(driver_name, devlink_to_dev(devlink)-
> >driver->name);
> - __assign_str(trap_name, metadata->trap_name);
> - __assign_str(trap_group_name, metadata-
> >trap_group_name);
> + __assign_str(bus_name);
> + __assign_str(dev_name);
> + __assign_str(driver_name);
> + __assign_str(trap_name);
> + __assign_str(trap_group_name);
>   strscpy(__entry->input_dev_name, input_dev ?
> input_dev->name : "NULL", IFNAMSIZ);
>   ),
>
> diff --git a/include/trace/events/dma_fence.h
> b/include/trace/events/dma_fence.h
> index 3963e79ca7b4..a4de3df8500b 100644
> --- a/include/trace/events/dma_fence.h
> +++ b/include/trace/events/dma_fence.h
> @@ -23,8 +23,8 @@ DECLARE_EVENT_CLASS(dma_fence,
>   ),
>
>   TP_fast_assign(
> - __assign_str(driver, fence->ops-
> >get_driver_name(fence));
> - __assign_str(timeline, fence->ops-
> >get_timeline_name(fence));
> + __assign_str(driver);
> + __assign_str(timeline);
>   __entry->context = fence->context;
>   __entry->seqno = fence->seqno;
>   ),
> diff --git a/include/trace/events/erofs.h
> b/include/trace/events/erofs.h
> index e18684b02c3d..b9bbfd855f2a 100644
> --- a/include/trace/events/erofs.h
> +++ b/include/trace/events/erofs.h
> @@ -47,7 +47,7 @@ TRACE_EVENT(erofs_lookup,
>   TP_fast_assign(
>   __entry->dev = dir->i_sb->s_dev;
>   __entry->nid = EROFS_I(dir)->nid;
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   __entry->flags = flags;
>   ),
>
> diff --git a/include/trace/events/f2fs.h
> b/include/trace/events/f2fs.h
> index 7ed0fc430dc6..5c688edb8143 100644
> --- a/include/trace/events/f2fs.h
> +++ b/include/trace/events/f2fs.h
> @@ -354,7 +354,7 @@ TRACE_EVENT(f2fs_unlink_enter,
>   __entry->ino = dir->i_ino;
>   __entry->size = dir->i_size;
>   __entry->blocks = dir->i_blocks;
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   ),
>
>   TP_printk("dev = (%d,%d), dir ino = %lu, i_size = %lld, "
> @@ -843,7 +843,7 @@ TRACE_EVENT(f2fs_lookup_start,
>   TP_fast_assign(
>   __entry->dev = dir->i_sb->s_dev;
>   __entry->ino = dir->i_ino;
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   __entry->flags = flags;
>   ),
>
> @@ -871,7 +871,7 @@ TRACE_EVENT(f2fs_lookup_end,
>   TP_fast_assign(
>   __entry->dev = dir->i_sb->s_dev;
>   __entry->ino = dir->i_ino;
> - __assign_str(name, dentry->d_name.name);
> + __assign_str(name);
>   __entry->cino = ino;
>   __entry->err = err;
>   ),
> @@ -903,9 +903,9 @@ TRACE_EVENT(f2fs_rename_start,
>   TP_fast_assign(
>   __entry->dev = old_dir->i_sb->s_dev;
>   __entry->ino = old_dir->i_ino;
> - __assign_str(old_name, old_dentry->d_name.name);
> + __assign_str(old_name);
>   __entry->new_pino = new_dir->i_ino;
> - __assign_str(new_name, new_dentry->d_name.name);
> + __assign_str(new_name);
>   __entry->flags = flags;
>   ),
>
> @@ -937,8 +937,8 @@ TRACE_EVENT(f2fs_rename_end,
>   TP_fast_assign(
>   __entry->dev = old_dentry->d_sb->s_dev;
>   __entry->ino = old_dentry->d_inode-
> >i_ino;
> - __assign_str(old_name, old_dentry->d_name.name);
> - __assign_str(new_name, new_dentry->d_name.name);
> + __assign_str(old_name);
> + __assign_str(new_name);
>   __entry->flags = flags;
>   __entry->ret = ret;
>   ),
> @@ -1557,7 +1557,7 @@ TRACE_EVENT(f2fs_write_checkpoint,
>   TP_fast_assign(
>   __entry->dev = sb->s_dev;
>   __entry->reason = reason;
> - __assign_str(dest_msg, msg);
> + __assign_str(dest_msg);
>   ),
>
>   TP_printk("dev = (%d,%d), checkpoint for %s, state = %s",
> @@ -2333,12 +2333,12 @@ DECLARE_EVENT_CLASS(f2fs__rw_start,
>   * because this screws up the tooling that parses
>   * the traces.
>   */
> - __assign_str(pathbuf, pathname);
> + __assign_str(pathbuf);
>   (void)strreplace(__get_str(pathbuf), ' ', '_');
>   __entry->offset = offset;
>   __entry->bytes = bytes;
>   __entry->i_size = i_size_read(inode);
> - __assign_str(cmdline, command);
> + __assign_str(cmdline);
>   (void)strreplace(__get_str(cmdline), ' ', '_');
>   __entry->pid = pid;
>   __entry->ino = inode->i_ino;
> diff --git a/include/trace/events/habanalabs.h
> b/include/trace/events/habanalabs.h
> index a78d21fa9f29..4a2bb2c896d1 100644
> --- a/include/trace/events/habanalabs.h
> +++ b/include/trace/events/habanalabs.h
> @@ -27,7 +27,7 @@ DECLARE_EVENT_CLASS(habanalabs_mmu_template,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dname, dev_name(dev));
> + __assign_str(dname);
>   __entry->virt_addr = virt_addr;
>   __entry->phys_addr = phys_addr;
>   __entry->page_size = page_size;
> @@ -64,7 +64,7 @@ DECLARE_EVENT_CLASS(habanalabs_dma_alloc_template,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dname, dev_name(dev));
> + __assign_str(dname);
>   __entry->cpu_addr = cpu_addr;
>   __entry->dma_addr = dma_addr;
>   __entry->size = size;
> @@ -103,7 +103,7 @@ DECLARE_EVENT_CLASS(habanalabs_dma_map_template,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dname, dev_name(dev));
> + __assign_str(dname);
>   __entry->phys_addr = phys_addr;
>   __entry->dma_addr = dma_addr;
>   __entry->len = len;
> @@ -141,7 +141,7 @@ DECLARE_EVENT_CLASS(habanalabs_comms_template,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dname, dev_name(dev));
> + __assign_str(dname);
>   __entry->op_str = op_str;
>   ),
>
> @@ -178,7 +178,7 @@
> DECLARE_EVENT_CLASS(habanalabs_reg_access_template,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dname, dev_name(dev));
> + __assign_str(dname);
>   __entry->addr = addr;
>   __entry->val = val;
>   ),
> diff --git a/include/trace/events/huge_memory.h
> b/include/trace/events/huge_memory.h
> index 6e2ef1d4b002..0e32fc35d758 100644
> --- a/include/trace/events/huge_memory.h
> +++ b/include/trace/events/huge_memory.h
> @@ -191,7 +191,7 @@ TRACE_EVENT(mm_khugepaged_scan_file,
>   TP_fast_assign(
>   __entry->mm = mm;
>   __entry->pfn = page ? page_to_pfn(page) : -1;
> - __assign_str(filename, file->f_path.dentry-
> >d_iname);
> + __assign_str(filename);
>   __entry->present = present;
>   __entry->swap = swap;
>   __entry->result = result;
> @@ -228,7 +228,7 @@ TRACE_EVENT(mm_khugepaged_collapse_file,
>   __entry->index = index;
>   __entry->addr = addr;
>   __entry->is_shmem = is_shmem;
> - __assign_str(filename, file->f_path.dentry-
> >d_iname);
> + __assign_str(filename);
>   __entry->nr = nr;
>   __entry->result = result;
>   ),
> diff --git a/include/trace/events/hwmon.h
> b/include/trace/events/hwmon.h
> index d7a1d0ffb679..d1ff560cd9b5 100644
> --- a/include/trace/events/hwmon.h
> +++ b/include/trace/events/hwmon.h
> @@ -21,7 +21,7 @@ DECLARE_EVENT_CLASS(hwmon_attr_class,
>
>   TP_fast_assign(
>   __entry->index = index;
> - __assign_str(attr_name, attr_name);
> + __assign_str(attr_name);
>   __entry->val = val;
>   ),
>
> @@ -57,8 +57,8 @@ TRACE_EVENT(hwmon_attr_show_string,
>
>   TP_fast_assign(
>   __entry->index = index;
> - __assign_str(attr_name, attr_name);
> - __assign_str(label, s);
> + __assign_str(attr_name);
> + __assign_str(label);
>   ),
>
>   TP_printk("index=%d, attr_name=%s, val=%s",
> diff --git a/include/trace/events/initcall.h
> b/include/trace/events/initcall.h
> index eb903c3f195f..5282afdf3ddf 100644
> --- a/include/trace/events/initcall.h
> +++ b/include/trace/events/initcall.h
> @@ -18,7 +18,7 @@ TRACE_EVENT(initcall_level,
>   ),
>
>   TP_fast_assign(
> - __assign_str(level, level);
> + __assign_str(level);
>   ),
>
>   TP_printk("level=%s", __get_str(level))
> diff --git a/include/trace/events/intel_ish.h
> b/include/trace/events/intel_ish.h
> index e6d7ff55ee8c..64b6612c41bc 100644
> --- a/include/trace/events/intel_ish.h
> +++ b/include/trace/events/intel_ish.h
> @@ -18,7 +18,7 @@ TRACE_EVENT(ishtp_dump,
>   ),
>
>   TP_fast_assign(
> - __assign_str(message, message);
> + __assign_str(message);
>   ),
>
>   TP_printk("%s", __get_str(message))
> diff --git a/include/trace/events/io_uring.h
> b/include/trace/events/io_uring.h
> index e948df7ce625..412c9c210a32 100644
> --- a/include/trace/events/io_uring.h
> +++ b/include/trace/events/io_uring.h
> @@ -164,7 +164,7 @@ TRACE_EVENT(io_uring_queue_async_work,
>   __entry->work = &req->work;
>   __entry->rw = rw;
>
> - __assign_str(op_str, io_uring_get_opcode(req-
> >opcode));
> + __assign_str(op_str);
>   ),
>
>   TP_printk("ring %p, request %p, user_data 0x%llx, opcode %s,
> flags 0x%llx, %s queue, work %p",
> @@ -202,7 +202,7 @@ TRACE_EVENT(io_uring_defer,
>   __entry->data = req->cqe.user_data;
>   __entry->opcode = req->opcode;
>
> - __assign_str(op_str, io_uring_get_opcode(req-
> >opcode));
> + __assign_str(op_str);
>   ),
>
>   TP_printk("ring %p, request %p, user_data 0x%llx, opcode
> %s",
> @@ -303,7 +303,7 @@ TRACE_EVENT(io_uring_fail_link,
>   __entry->opcode = req->opcode;
>   __entry->link = link;
>
> - __assign_str(op_str, io_uring_get_opcode(req-
> >opcode));
> + __assign_str(op_str);
>   ),
>
>   TP_printk("ring %p, request %p, user_data 0x%llx, opcode %s,
> link %p",
> @@ -392,7 +392,7 @@ TRACE_EVENT(io_uring_submit_req,
>   __entry->flags = (__force unsigned long
> long) req->flags;
>   __entry->sq_thread = req->ctx->flags &
> IORING_SETUP_SQPOLL;
>
> - __assign_str(op_str, io_uring_get_opcode(req-
> >opcode));
> + __assign_str(op_str);
>   ),
>
>   TP_printk("ring %p, req %p, user_data 0x%llx, opcode %s,
> flags 0x%llx, "
> @@ -436,7 +436,7 @@ TRACE_EVENT(io_uring_poll_arm,
>   __entry->mask = mask;
>   __entry->events = events;
>
> - __assign_str(op_str, io_uring_get_opcode(req-
> >opcode));
> + __assign_str(op_str);
>   ),
>
>   TP_printk("ring %p, req %p, user_data 0x%llx, opcode %s,
> mask 0x%x, events 0x%x",
> @@ -475,7 +475,7 @@ TRACE_EVENT(io_uring_task_add,
>   __entry->opcode = req->opcode;
>   __entry->mask = mask;
>
> - __assign_str(op_str, io_uring_get_opcode(req-
> >opcode));
> + __assign_str(op_str);
>   ),
>
>   TP_printk("ring %p, req %p, user_data 0x%llx, opcode %s,
> mask %x",
> @@ -538,7 +538,7 @@ TRACE_EVENT(io_uring_req_failed,
>   __entry->addr3 = sqe->addr3;
>   __entry->error = error;
>
> - __assign_str(op_str, io_uring_get_opcode(sqe-
> >opcode));
> + __assign_str(op_str);
>   ),
>
>   TP_printk("ring %p, req %p, user_data 0x%llx, "
> diff --git a/include/trace/events/iocost.h
> b/include/trace/events/iocost.h
> index af8bfed528fc..e772b1bc60d6 100644
> --- a/include/trace/events/iocost.h
> +++ b/include/trace/events/iocost.h
> @@ -34,8 +34,8 @@ DECLARE_EVENT_CLASS(iocost_iocg_state,
>   ),
>
>   TP_fast_assign(
> - __assign_str(devname, ioc_name(iocg->ioc));
> - __assign_str(cgroup, path);
> + __assign_str(devname);
> + __assign_str(cgroup);
>   __entry->now = now->now;
>   __entry->vnow = now->vnow;
>   __entry->vrate = iocg->ioc->vtime_base_rate;
> @@ -93,8 +93,8 @@ DECLARE_EVENT_CLASS(iocg_inuse_update,
>   ),
>
>   TP_fast_assign(
> - __assign_str(devname, ioc_name(iocg->ioc));
> - __assign_str(cgroup, path);
> + __assign_str(devname);
> + __assign_str(cgroup);
>   __entry->now = now->now;
>   __entry->old_inuse = old_inuse;
>   __entry->new_inuse = new_inuse;
> @@ -159,7 +159,7 @@ TRACE_EVENT(iocost_ioc_vrate_adj,
>   ),
>
>   TP_fast_assign(
> - __assign_str(devname, ioc_name(ioc));
> + __assign_str(devname);
>   __entry->old_vrate = ioc->vtime_base_rate;
>   __entry->new_vrate = new_vrate;
>   __entry->busy_level = ioc->busy_level;
> @@ -200,8 +200,8 @@ TRACE_EVENT(iocost_iocg_forgive_debt,
>   ),
>
>   TP_fast_assign(
> - __assign_str(devname, ioc_name(iocg->ioc));
> - __assign_str(cgroup, path);
> + __assign_str(devname);
> + __assign_str(cgroup);
>   __entry->now = now->now;
>   __entry->vnow = now->vnow;
>   __entry->usage_pct = usage_pct;
> diff --git a/include/trace/events/iommu.h
> b/include/trace/events/iommu.h
> index 70743db1fb75..373007e567cb 100644
> --- a/include/trace/events/iommu.h
> +++ b/include/trace/events/iommu.h
> @@ -28,7 +28,7 @@ DECLARE_EVENT_CLASS(iommu_group_event,
>
>   TP_fast_assign(
>   __entry->gid = group_id;
> - __assign_str(device, dev_name(dev));
> + __assign_str(device);
>   ),
>
>   TP_printk("IOMMU: groupID=%d device=%s",
> @@ -62,7 +62,7 @@ DECLARE_EVENT_CLASS(iommu_device_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(dev));
> + __assign_str(device);
>   ),
>
>   TP_printk("IOMMU: device=%s", __get_str(device)
> @@ -138,8 +138,8 @@ DECLARE_EVENT_CLASS(iommu_error,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(dev));
> - __assign_str(driver, dev_driver_string(dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->iova = iova;
>   __entry->flags = flags;
>   ),
> diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
> index a07b4607b663..837c1740d0d0 100644
> --- a/include/trace/events/irq.h
> +++ b/include/trace/events/irq.h
> @@ -63,7 +63,7 @@ TRACE_EVENT(irq_handler_entry,
>
>   TP_fast_assign(
>   __entry->irq = irq;
> - __assign_str(name, action->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("irq=%d name=%s", __entry->irq, __get_str(name))
> diff --git a/include/trace/events/iscsi.h
> b/include/trace/events/iscsi.h
> index 8ff2a3ca5d75..990fd154f586 100644
> --- a/include/trace/events/iscsi.h
> +++ b/include/trace/events/iscsi.h
> @@ -30,7 +30,7 @@ DECLARE_EVENT_CLASS(iscsi_log_msg,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dname, dev_name(dev));
> + __assign_str(dname);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>
> diff --git a/include/trace/events/kmem.h
> b/include/trace/events/kmem.h
> index 6e62cc64cd92..8a829e0f6e55 100644
> --- a/include/trace/events/kmem.h
> +++ b/include/trace/events/kmem.h
> @@ -126,7 +126,7 @@ TRACE_EVENT(kmem_cache_free,
>   TP_fast_assign(
>   __entry->call_site = call_site;
>   __entry->ptr = ptr;
> - __assign_str(name, s->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("call_site=%pS ptr=%p name=%s",
> diff --git a/include/trace/events/lock.h
> b/include/trace/events/lock.h
> index 9ebd081e057e..8e89baa3775f 100644
> --- a/include/trace/events/lock.h
> +++ b/include/trace/events/lock.h
> @@ -37,7 +37,7 @@ TRACE_EVENT(lock_acquire,
>
>   TP_fast_assign(
>   __entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0);
> - __assign_str(name, lock->name);
> + __assign_str(name);
>   __entry->lockdep_addr = lock;
>   ),
>
> @@ -59,7 +59,7 @@ DECLARE_EVENT_CLASS(lock,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, lock->name);
> + __assign_str(name);
>   __entry->lockdep_addr = lock;
>   ),
>
> diff --git a/include/trace/events/mmap_lock.h
> b/include/trace/events/mmap_lock.h
> index 14db8044c1ff..f2827f98a44f 100644
> --- a/include/trace/events/mmap_lock.h
> +++ b/include/trace/events/mmap_lock.h
> @@ -27,7 +27,7 @@ DECLARE_EVENT_CLASS(mmap_lock,
>
>   TP_fast_assign(
>   __entry->mm = mm;
> - __assign_str(memcg_path, memcg_path);
> + __assign_str(memcg_path);
>   __entry->write = write;
>   ),
>
> @@ -65,7 +65,7 @@ TRACE_EVENT_FN(mmap_lock_acquire_returned,
>
>   TP_fast_assign(
>   __entry->mm = mm;
> - __assign_str(memcg_path, memcg_path);
> + __assign_str(memcg_path);
>   __entry->write = write;
>   __entry->success = success;
>   ),
> diff --git a/include/trace/events/mmc.h b/include/trace/events/mmc.h
> index 7b706ff21335..f1c2e94f7f68 100644
> --- a/include/trace/events/mmc.h
> +++ b/include/trace/events/mmc.h
> @@ -68,7 +68,7 @@ TRACE_EVENT(mmc_request_start,
>   __entry->need_retune = host->need_retune;
>   __entry->hold_retune = host->hold_retune;
>   __entry->retune_period = host->retune_period;
> - __assign_str(name, mmc_hostname(host));
> + __assign_str(name);
>   __entry->mrq = mrq;
>   ),
>
> @@ -156,7 +156,7 @@ TRACE_EVENT(mmc_request_done,
>   __entry->need_retune = host->need_retune;
>   __entry->hold_retune = host->hold_retune;
>   __entry->retune_period = host->retune_period;
> - __assign_str(name, mmc_hostname(host));
> + __assign_str(name);
>   __entry->mrq = mrq;
>   ),
>
> diff --git a/include/trace/events/module.h
> b/include/trace/events/module.h
> index 097485c73c01..e5a006be9dc6 100644
> --- a/include/trace/events/module.h
> +++ b/include/trace/events/module.h
> @@ -41,7 +41,7 @@ TRACE_EVENT(module_load,
>
>   TP_fast_assign(
>   __entry->taints = mod->taints;
> - __assign_str(name, mod->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("%s %s", __get_str(name),
> show_module_flags(__entry->taints))
> @@ -58,7 +58,7 @@ TRACE_EVENT(module_free,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, mod->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("%s", __get_str(name))
> @@ -82,7 +82,7 @@ DECLARE_EVENT_CLASS(module_refcnt,
>   TP_fast_assign(
>   __entry->ip = ip;
>   __entry->refcnt = atomic_read(&mod->refcnt);
> - __assign_str(name, mod->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("%s call_site=%ps refcnt=%d",
> @@ -119,7 +119,7 @@ TRACE_EVENT(module_request,
>   TP_fast_assign(
>   __entry->ip = ip;
>   __entry->wait = wait;
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>
>   TP_printk("%s wait=%d call_site=%ps",
> diff --git a/include/trace/events/napi.h
> b/include/trace/events/napi.h
> index dc03cf8e0369..b567b9ffedc1 100644
> --- a/include/trace/events/napi.h
> +++ b/include/trace/events/napi.h
> @@ -26,7 +26,7 @@ TRACE_EVENT(napi_poll,
>
>   TP_fast_assign(
>   __entry->napi = napi;
> - __assign_str(dev_name, napi->dev ? napi->dev->name :
> NO_DEV);
> + __assign_str(dev_name);
>   __entry->work = work;
>   __entry->budget = budget;
>   ),
> diff --git a/include/trace/events/neigh.h
> b/include/trace/events/neigh.h
> index 833143d0992e..12362c35dbc0 100644
> --- a/include/trace/events/neigh.h
> +++ b/include/trace/events/neigh.h
> @@ -42,7 +42,7 @@ TRACE_EVENT(neigh_create,
>   __be32 *p32;
>
>   __entry->family = tbl->family;
> - __assign_str(dev, (dev ? dev->name : "NULL"));
> + __assign_str(dev);
>   __entry->entries = atomic_read(&tbl->gc_entries);
>   __entry->created = n != NULL;
>   __entry->gc_exempt = exempt_from_gc;
> @@ -103,7 +103,7 @@ TRACE_EVENT(neigh_update,
>   __be32 *p32;
>
>   __entry->family = n->tbl->family;
> - __assign_str(dev, (n->dev ? n->dev->name : "NULL"));
> + __assign_str(dev);
>   __entry->lladdr_len = lladdr_len;
>   memcpy(__entry->lladdr, n->ha, lladdr_len);
>   __entry->flags = n->flags;
> @@ -180,7 +180,7 @@ DECLARE_EVENT_CLASS(neigh__update,
>   __be32 *p32;
>
>   __entry->family = n->tbl->family;
> - __assign_str(dev, (n->dev ? n->dev->name : "NULL"));
> + __assign_str(dev);
>   __entry->lladdr_len = lladdr_len;
>   memcpy(__entry->lladdr, n->ha, lladdr_len);
>   __entry->flags = n->flags;
> diff --git a/include/trace/events/net.h b/include/trace/events/net.h
> index f667c76a3b02..d55162c12f90 100644
> --- a/include/trace/events/net.h
> +++ b/include/trace/events/net.h
> @@ -38,7 +38,7 @@ TRACE_EVENT(net_dev_start_xmit,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, dev->name);
> + __assign_str(name);
>   __entry->queue_mapping = skb->queue_mapping;
>   __entry->skbaddr = skb;
>   __entry->vlan_tagged = skb_vlan_tag_present(skb);
> @@ -89,7 +89,7 @@ TRACE_EVENT(net_dev_xmit,
>   __entry->skbaddr = skb;
>   __entry->len = skb_len;
>   __entry->rc = rc;
> - __assign_str(name, dev->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("dev=%s skbaddr=%p len=%u rc=%d",
> @@ -110,8 +110,8 @@ TRACE_EVENT(net_dev_xmit_timeout,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, dev->name);
> - __assign_str(driver, netdev_drivername(dev));
> + __assign_str(name);
> + __assign_str(driver);
>   __entry->queue_index = queue_index;
>   ),
>
> @@ -134,7 +134,7 @@ DECLARE_EVENT_CLASS(net_dev_template,
>   TP_fast_assign(
>   __entry->skbaddr = skb;
>   __entry->len = skb->len;
> - __assign_str(name, skb->dev->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("dev=%s skbaddr=%p len=%u",
> @@ -191,7 +191,7 @@ DECLARE_EVENT_CLASS(net_dev_rx_verbose_template,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, skb->dev->name);
> + __assign_str(name);
>  #ifdef CONFIG_NET_RX_BUSY_POLL
>   __entry->napi_id = skb->napi_id;
>  #else
> diff --git a/include/trace/events/netlink.h
> b/include/trace/events/netlink.h
> index 3b7be3b386a4..f036b8a20505 100644
> --- a/include/trace/events/netlink.h
> +++ b/include/trace/events/netlink.h
> @@ -17,7 +17,7 @@ TRACE_EVENT(netlink_extack,
>   ),
>
>   TP_fast_assign(
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   ),
>
>   TP_printk("msg=%s", __get_str(msg))
> diff --git a/include/trace/events/oom.h b/include/trace/events/oom.h
> index b799f3bcba82..a42be4c8563b 100644
> --- a/include/trace/events/oom.h
> +++ b/include/trace/events/oom.h
> @@ -92,7 +92,7 @@ TRACE_EVENT(mark_victim,
>
>   TP_fast_assign(
>   __entry->pid = task->pid;
> - __assign_str(comm, task->comm);
> + __assign_str(comm);
>   __entry->total_vm = PG_COUNT_TO_KB(task->mm-
> >total_vm);
>   __entry->anon_rss =
> PG_COUNT_TO_KB(get_mm_counter(task->mm, MM_ANONPAGES));
>   __entry->file_rss =
> PG_COUNT_TO_KB(get_mm_counter(task->mm, MM_FILEPAGES));
> diff --git a/include/trace/events/osnoise.h
> b/include/trace/events/osnoise.h
> index 82f741ec0f57..a2379a4f0684 100644
> --- a/include/trace/events/osnoise.h
> +++ b/include/trace/events/osnoise.h
> @@ -75,7 +75,7 @@ TRACE_EVENT(irq_noise,
>   ),
>
>   TP_fast_assign(
> - __assign_str(desc, desc);
> + __assign_str(desc);
>   __entry->vector = vector;
>   __entry->start = start;
>   __entry->duration = duration;
> diff --git a/include/trace/events/power.h
> b/include/trace/events/power.h
> index 77f14f7a11d4..d2349b6b531a 100644
> --- a/include/trace/events/power.h
> +++ b/include/trace/events/power.h
> @@ -76,7 +76,7 @@ TRACE_EVENT(powernv_throttle,
>
>   TP_fast_assign(
>   __entry->chip_id = chip_id;
> - __assign_str(reason, reason);
> + __assign_str(reason);
>   __entry->pmax = pmax;
>   ),
>
> @@ -210,11 +210,10 @@ TRACE_EVENT(device_pm_callback_start,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(dev));
> - __assign_str(driver, dev_driver_string(dev));
> - __assign_str(parent,
> - dev->parent ? dev_name(dev->parent) :
> "none");
> - __assign_str(pm_ops, pm_ops ? pm_ops : "none ");
> + __assign_str(device);
> + __assign_str(driver);
> + __assign_str(parent);
> + __assign_str(pm_ops);
>   __entry->event = event;
>   ),
>
> @@ -236,8 +235,8 @@ TRACE_EVENT(device_pm_callback_end,
>   ),
>
>   TP_fast_assign(
> - __assign_str(device, dev_name(dev));
> - __assign_str(driver, dev_driver_string(dev));
> + __assign_str(device);
> + __assign_str(driver);
>   __entry->error = error;
>   ),
>
> @@ -279,7 +278,7 @@ DECLARE_EVENT_CLASS(wakeup_source,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->state = state;
>   ),
>
> @@ -318,7 +317,7 @@ DECLARE_EVENT_CLASS(clock,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->state = state;
>   __entry->cpu_id = cpu_id;
>   ),
> @@ -364,7 +363,7 @@ DECLARE_EVENT_CLASS(power_domain,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->state = state;
>   __entry->cpu_id = cpu_id;
>  ),
> @@ -486,7 +485,7 @@ DECLARE_EVENT_CLASS(dev_pm_qos_request,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->type = type;
>   __entry->new_value = new_value;
>   ),
> diff --git a/include/trace/events/pwc.h b/include/trace/events/pwc.h
> index a2da764a3b41..0543702542d9 100644
> --- a/include/trace/events/pwc.h
> +++ b/include/trace/events/pwc.h
> @@ -26,7 +26,7 @@ TRACE_EVENT(pwc_handler_enter,
>   __entry->urb__actual_length = urb->actual_length;
>   __entry->fbuf__filled = (pdev->fill_buf
>   ? pdev->fill_buf->filled :
> 0);
> - __assign_str(name, pdev->v4l2_dev.name);
> + __assign_str(name);
>   ),
>   TP_printk("dev=%s (fbuf=%p filled=%d) urb=%p (status=%d
> actual_length=%u)",
>   __get_str(name),
> @@ -50,7 +50,7 @@ TRACE_EVENT(pwc_handler_exit,
>   __entry->urb = urb;
>   __entry->fbuf = pdev->fill_buf;
>   __entry->fbuf__filled = pdev->fill_buf->filled;
> - __assign_str(name, pdev->v4l2_dev.name);
> + __assign_str(name);
>   ),
>   TP_printk(" dev=%s (fbuf=%p filled=%d) urb=%p",
>   __get_str(name),
> diff --git a/include/trace/events/qdisc.h
> b/include/trace/events/qdisc.h
> index 1f4258308b96..f1b5e816e7e5 100644
> --- a/include/trace/events/qdisc.h
> +++ b/include/trace/events/qdisc.h
> @@ -88,8 +88,8 @@ TRACE_EVENT(qdisc_reset,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, qdisc_dev(q)->name);
> - __assign_str(kind, q->ops->id);
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->parent = q->parent;
>   __entry->handle = q->handle;
>   ),
> @@ -113,8 +113,8 @@ TRACE_EVENT(qdisc_destroy,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, qdisc_dev(q)->name);
> - __assign_str(kind, q->ops->id);
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->parent = q->parent;
>   __entry->handle = q->handle;
>   ),
> @@ -137,8 +137,8 @@ TRACE_EVENT(qdisc_create,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, dev->name);
> - __assign_str(kind, ops->id);
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->parent = parent;
>   ),
>
> diff --git a/include/trace/events/qla.h b/include/trace/events/qla.h
> index e7fd55e7dc3d..8800c35525a1 100644
> --- a/include/trace/events/qla.h
> +++ b/include/trace/events/qla.h
> @@ -25,7 +25,7 @@ DECLARE_EVENT_CLASS(qla_log_event,
>   __vstring(msg, vaf->fmt, vaf->va)
>   ),
>   TP_fast_assign(
> - __assign_str(buf, buf);
> + __assign_str(buf);
>   __assign_vstr(msg, vaf->fmt, vaf->va);
>   ),
>
> diff --git a/include/trace/events/qrtr.h
> b/include/trace/events/qrtr.h
> index 441132c67133..14f822983741 100644
> --- a/include/trace/events/qrtr.h
> +++ b/include/trace/events/qrtr.h
> @@ -102,7 +102,7 @@ TRACE_EVENT(qrtr_ns_message,
>   ),
>
>   TP_fast_assign(
> - __assign_str(ctrl_pkt_str, ctrl_pkt_str);
> + __assign_str(ctrl_pkt_str);
>   __entry->sq_node = sq_node;
>   __entry->sq_port = sq_port;
>   ),
> diff --git a/include/trace/events/regulator.h
> b/include/trace/events/regulator.h
> index 72b3ba93b0a5..c58481a5d955 100644
> --- a/include/trace/events/regulator.h
> +++ b/include/trace/events/regulator.h
> @@ -23,7 +23,7 @@ DECLARE_EVENT_CLASS(regulator_basic,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   ),
>
>   TP_printk("name=%s", __get_str(name))
> @@ -119,7 +119,7 @@ DECLARE_EVENT_CLASS(regulator_range,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->min  = min;
>   __entry->max  = max;
>   ),
> @@ -152,7 +152,7 @@ DECLARE_EVENT_CLASS(regulator_value,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->val  = val;
>   ),
>
> diff --git a/include/trace/events/rpcgss.h
> b/include/trace/events/rpcgss.h
> index f50fcafc69de..7f0c1ceae726 100644
> --- a/include/trace/events/rpcgss.h
> +++ b/include/trace/events/rpcgss.h
> @@ -154,7 +154,7 @@ DECLARE_EVENT_CLASS(rpcgss_ctx_class,
>   TP_fast_assign(
>   __entry->cred = gc;
>   __entry->service = gc->gc_service;
> - __assign_str(principal, gc->gc_principal);
> + __assign_str(principal);
>   ),
>
>   TP_printk("cred=%p service=%s principal='%s'",
> @@ -189,7 +189,7 @@ DECLARE_EVENT_CLASS(rpcgss_svc_gssapi_class,
>   TP_fast_assign(
>   __entry->xid = __be32_to_cpu(rqstp->rq_xid);
>   __entry->maj_stat = maj_stat;
> - __assign_str(addr, rqstp->rq_xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s xid=0x%08x maj_stat=%s",
> @@ -225,7 +225,7 @@ TRACE_EVENT(rpcgss_svc_wrap_failed,
>
>   TP_fast_assign(
>   __entry->xid = be32_to_cpu(rqstp->rq_xid);
> - __assign_str(addr, rqstp->rq_xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s xid=0x%08x", __get_str(addr), __entry-
> >xid)
> @@ -245,7 +245,7 @@ TRACE_EVENT(rpcgss_svc_unwrap_failed,
>
>   TP_fast_assign(
>   __entry->xid = be32_to_cpu(rqstp->rq_xid);
> - __assign_str(addr, rqstp->rq_xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s xid=0x%08x", __get_str(addr), __entry-
> >xid)
> @@ -271,7 +271,7 @@ TRACE_EVENT(rpcgss_svc_seqno_bad,
>   __entry->expected = expected;
>   __entry->received = received;
>   __entry->xid = __be32_to_cpu(rqstp->rq_xid);
> - __assign_str(addr, rqstp->rq_xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s xid=0x%08x expected seqno %u, received
> seqno %u",
> @@ -299,7 +299,7 @@ TRACE_EVENT(rpcgss_svc_accept_upcall,
>   __entry->minor_status = minor_status;
>   __entry->major_status = major_status;
>   __entry->xid = be32_to_cpu(rqstp->rq_xid);
> - __assign_str(addr, rqstp->rq_xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s xid=0x%08x major_status=%s (0x%08lx)
> minor_status=%u",
> @@ -327,7 +327,7 @@ TRACE_EVENT(rpcgss_svc_authenticate,
>   TP_fast_assign(
>   __entry->xid = be32_to_cpu(rqstp->rq_xid);
>   __entry->seqno = gc->gc_seq;
> - __assign_str(addr, rqstp->rq_xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s xid=0x%08x seqno=%u", __get_str(addr),
> @@ -563,7 +563,7 @@ TRACE_EVENT(rpcgss_upcall_msg,
>   ),
>
>   TP_fast_assign(
> - __assign_str(msg, buf);
> + __assign_str(msg);
>   ),
>
>   TP_printk("msg='%s'", __get_str(msg))
> @@ -618,7 +618,7 @@ TRACE_EVENT(rpcgss_context,
>   __entry->timeout = timeout;
>   __entry->window_size = window_size;
>   __entry->len = len;
> - __assign_str(acceptor, data);
> + __assign_str(acceptor);
>   ),
>
>   TP_printk("win_size=%u expiry=%lu now=%lu timeout=%u
> acceptor=%.*s",
> @@ -677,7 +677,7 @@ TRACE_EVENT(rpcgss_oid_to_mech,
>   ),
>
>   TP_fast_assign(
> - __assign_str(oid, oid);
> + __assign_str(oid);
>   ),
>
>   TP_printk("mech for oid %s was not found", __get_str(oid))
> diff --git a/include/trace/events/rpcrdma.h
> b/include/trace/events/rpcrdma.h
> index 027ac3ab457d..14392652273a 100644
> --- a/include/trace/events/rpcrdma.h
> +++ b/include/trace/events/rpcrdma.h
> @@ -304,8 +304,8 @@ DECLARE_EVENT_CLASS(xprtrdma_reply_class,
>   __entry->xid = be32_to_cpu(rep->rr_xid);
>   __entry->version = be32_to_cpu(rep->rr_vers);
>   __entry->proc = be32_to_cpu(rep->rr_proc);
> - __assign_str(addr, rpcrdma_addrstr(rep->rr_rxprt));
> - __assign_str(port, rpcrdma_portstr(rep->rr_rxprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s xid=0x%08x version=%u proc=%u",
> @@ -335,8 +335,8 @@ DECLARE_EVENT_CLASS(xprtrdma_rxprt,
>   ),
>
>   TP_fast_assign(
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s",
> @@ -369,8 +369,8 @@ DECLARE_EVENT_CLASS(xprtrdma_connect_class,
>   TP_fast_assign(
>   __entry->rc = rc;
>   __entry->connect_status = r_xprt->rx_ep-
> >re_connect_status;
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s rc=%d connection status=%d",
> @@ -608,8 +608,8 @@ DECLARE_EVENT_CLASS(xprtrdma_callback_class,
>
>   TP_fast_assign(
>   __entry->xid = be32_to_cpu(rqst->rq_xid);
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s xid=0x%08x",
> @@ -687,8 +687,8 @@ TRACE_EVENT(xprtrdma_op_connect,
>
>   TP_fast_assign(
>   __entry->delay = delay;
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s delay=%lu",
> @@ -716,8 +716,8 @@ TRACE_EVENT(xprtrdma_op_set_cto,
>   TP_fast_assign(
>   __entry->connect = connect;
>   __entry->reconnect = reconnect;
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s connect=%lu reconnect=%lu",
> @@ -746,8 +746,8 @@ TRACE_EVENT(xprtrdma_createmrs,
>
>   TP_fast_assign(
>   __entry->count = count;
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s created %u MRs",
> @@ -775,8 +775,8 @@ TRACE_EVENT(xprtrdma_nomrs_err,
>
>   __entry->task_id = rqst->rq_task->tk_pid;
>   __entry->client_id = rqst->rq_task->tk_client-
> >cl_clid;
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk(SUNRPC_TRACE_TASK_SPECIFIER " peer=[%s]:%s",
> @@ -1001,8 +1001,8 @@ TRACE_EVENT(xprtrdma_post_recvs,
>   __entry->cq_id = ep->re_attr.recv_cq->res.id;
>   __entry->count = count;
>   __entry->posted = ep->re_receive_count;
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s cq.id=%d %u new recvs, %d active",
> @@ -1031,8 +1031,8 @@ TRACE_EVENT(xprtrdma_post_recvs_err,
>
>   __entry->cq_id = ep->re_attr.recv_cq->res.id;
>   __entry->status = status;
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s cq.id=%d rc=%d",
> @@ -1445,8 +1445,8 @@ TRACE_EVENT(xprtrdma_cb_setup,
>
>   TP_fast_assign(
>   __entry->reqs = reqs;
> - __assign_str(addr, rpcrdma_addrstr(r_xprt));
> - __assign_str(port, rpcrdma_portstr(r_xprt));
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s %u reqs",
> @@ -1476,7 +1476,7 @@ DECLARE_EVENT_CLASS(svcrdma_accept_class,
>
>   TP_fast_assign(
>   __entry->status = status;
> - __assign_str(addr, rdma->sc_xprt.xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s status=%ld",
> @@ -1962,7 +1962,7 @@ TRACE_EVENT(svcrdma_send_err,
>   TP_fast_assign(
>   __entry->status = status;
>   __entry->xid = __be32_to_cpu(rqst->rq_xid);
> - __assign_str(addr, rqst->rq_xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s xid=0x%08x status=%d", __get_str(addr),
> @@ -2025,7 +2025,7 @@ TRACE_EVENT(svcrdma_rq_post_err,
>
>   TP_fast_assign(
>   __entry->status = status;
> - __assign_str(addr, rdma->sc_xprt.xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s status=%d",
> @@ -2138,7 +2138,7 @@ TRACE_EVENT(svcrdma_qp_error,
>
>   TP_fast_assign(
>   __entry->event = event->event;
> - __assign_str(device, event->device->name);
> + __assign_str(device);
>   snprintf(__entry->addr, sizeof(__entry->addr) - 1,
>   "%pISpc", sap);
>   ),
> diff --git a/include/trace/events/rpm.h b/include/trace/events/rpm.h
> index bd120e23ce12..2b0b4b6ef862 100644
> --- a/include/trace/events/rpm.h
> +++ b/include/trace/events/rpm.h
> @@ -33,7 +33,7 @@ DECLARE_EVENT_CLASS(rpm_internal,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, dev_name(dev));
> + __assign_str(name);
>   __entry->flags = flags;
>   __entry->usage_count = atomic_read(
>   &dev->power.usage_count);
> @@ -92,7 +92,7 @@ TRACE_EVENT(rpm_return_int,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, dev_name(dev));
> + __assign_str(name);
>   __entry->ip = ip;
>   __entry->ret = ret;
>   ),
> @@ -135,7 +135,7 @@ TRACE_EVENT(rpm_status,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, dev_name(dev));
> + __assign_str(name);
>   __entry->status = status;
>   ),
>
> diff --git a/include/trace/events/sched.h
> b/include/trace/events/sched.h
> index 68973f650c26..6df2b4685b08 100644
> --- a/include/trace/events/sched.h
> +++ b/include/trace/events/sched.h
> @@ -411,7 +411,7 @@ TRACE_EVENT(sched_process_exec,
>   ),
>
>   TP_fast_assign(
> - __assign_str(filename, bprm->filename);
> + __assign_str(filename);
>   __entry->pid = p->pid;
>   __entry->old_pid = old_pid;
>   ),
> @@ -445,10 +445,10 @@ TRACE_EVENT(sched_prepare_exec,
>   ),
>
>   TP_fast_assign(
> - __assign_str(interp, bprm->interp);
> - __assign_str(filename, bprm->filename);
> + __assign_str(interp);
> + __assign_str(filename);
>   __entry->pid = task->pid;
> - __assign_str(comm, task->comm);
> + __assign_str(comm);
>   ),
>
>   TP_printk("interp=%s filename=%s pid=%d comm=%s",
> diff --git a/include/trace/events/sof.h b/include/trace/events/sof.h
> index 21c2a1efb9f6..3681b6ef625d 100644
> --- a/include/trace/events/sof.h
> +++ b/include/trace/events/sof.h
> @@ -23,7 +23,7 @@ DECLARE_EVENT_CLASS(sof_widget_template,
>   __field(int, use_count)
>   ),
>   TP_fast_assign(
> - __assign_str(name, swidget->widget->name);
> + __assign_str(name);
>   __entry->use_count = swidget->use_count;
>   ),
>   TP_printk("name=%s use_count=%d", __get_str(name), __entry-
> >use_count)
> @@ -49,7 +49,7 @@ TRACE_EVENT(sof_ipc3_period_elapsed_position,
>   __field(u64, wallclock)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> + __assign_str(device_name);
>   __entry->host_posn = posn->host_posn;
>   __entry->dai_posn = posn->dai_posn;
>   __entry->wallclock = posn->wallclock;
> @@ -75,7 +75,7 @@ TRACE_EVENT(sof_pcm_pointer_position,
>   __field(unsigned long, dai_posn)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> + __assign_str(device_name);
>   __entry->pcm_id = le32_to_cpu(spcm->pcm.pcm_id);
>   __entry->stream = substream->stream;
>   __entry->dma_posn = dma_posn;
> @@ -93,7 +93,7 @@ TRACE_EVENT(sof_stream_position_ipc_rx,
>   __string(device_name, dev_name(dev))
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(dev));
> + __assign_str(device_name);
>   ),
>   TP_printk("device_name=%s", __get_str(device_name))
>  );
> @@ -107,8 +107,8 @@ TRACE_EVENT(sof_ipc4_fw_config,
>   __field(u32, value)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> - __assign_str(key, key);
> + __assign_str(device_name);
> + __assign_str(key);
>   __entry->value = value;
>   ),
>   TP_printk("device_name=%s key=%s value=%d",
> diff --git a/include/trace/events/sof_intel.h
> b/include/trace/events/sof_intel.h
> index 2a77f9d26c0b..f6414f437546 100644
> --- a/include/trace/events/sof_intel.h
> +++ b/include/trace/events/sof_intel.h
> @@ -22,8 +22,8 @@ TRACE_EVENT(sof_intel_hda_irq,
>   __string(source, source)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> - __assign_str(source, source);
> + __assign_str(device_name);
> + __assign_str(source);
>   ),
>   TP_printk("device_name=%s source=%s",
>     __get_str(device_name), __get_str(source))
> @@ -38,7 +38,7 @@
> DECLARE_EVENT_CLASS(sof_intel_ipc_firmware_template,
>   __field(u32, msg_ext)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> + __assign_str(device_name);
>   __entry->msg = msg;
>   __entry->msg_ext = msg_ext;
>   ),
> @@ -64,7 +64,7 @@ TRACE_EVENT(sof_intel_D0I3C_updated,
>   __field(u8, reg)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> + __assign_str(device_name);
>   __entry->reg = reg;
>   ),
>   TP_printk("device_name=%s register=%#x",
> @@ -79,7 +79,7 @@ TRACE_EVENT(sof_intel_hda_irq_ipc_check,
>   __field(u32, irq_status)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> + __assign_str(device_name);
>   __entry->irq_status = irq_status;
>   ),
>   TP_printk("device_name=%s irq_status=%#x",
> @@ -100,7 +100,7 @@ TRACE_EVENT(sof_intel_hda_dsp_pcm,
>   __field(unsigned long, pos)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> + __assign_str(device_name);
>   __entry->hstream_index = hstream->index;
>   __entry->substream = substream->stream;
>   __entry->pos = pos;
> @@ -119,7 +119,7 @@ TRACE_EVENT(sof_intel_hda_dsp_stream_status,
>   __field(u32, status)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(dev));
> + __assign_str(device_name);
>   __entry->stream = s->index;
>   __entry->status = status;
>   ),
> @@ -135,7 +135,7 @@ TRACE_EVENT(sof_intel_hda_dsp_check_stream_irq,
>   __field(u32, status)
>   ),
>   TP_fast_assign(
> - __assign_str(device_name, dev_name(sdev->dev));
> + __assign_str(device_name);
>   __entry->status = status;
>   ),
>   TP_printk("device_name=%s status=%#x",
> diff --git a/include/trace/events/sunrpc.h
> b/include/trace/events/sunrpc.h
> index ac05ed06a071..5e8495216689 100644
> --- a/include/trace/events/sunrpc.h
> +++ b/include/trace/events/sunrpc.h
> @@ -188,10 +188,10 @@ TRACE_EVENT(rpc_clnt_new,
>   __entry->client_id = clnt->cl_clid;
>   __entry->xprtsec = args->xprtsec.policy;
>   __entry->flags = args->flags;
> - __assign_str(program, clnt->cl_program->name);
> - __assign_str(server, xprt->servername);
> - __assign_str(addr, xprt-
> >address_strings[RPC_DISPLAY_ADDR]);
> - __assign_str(port, xprt-
> >address_strings[RPC_DISPLAY_PORT]);
> + __assign_str(program);
> + __assign_str(server);
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("client=" SUNRPC_TRACE_CLID_SPECIFIER "
> peer=[%s]:%s"
> @@ -220,8 +220,8 @@ TRACE_EVENT(rpc_clnt_new_err,
>
>   TP_fast_assign(
>   __entry->error = error;
> - __assign_str(program, program);
> - __assign_str(server, server);
> + __assign_str(program);
> + __assign_str(server);
>   ),
>
>   TP_printk("program=%s server=%s error=%d",
> @@ -325,8 +325,8 @@ TRACE_EVENT(rpc_request,
>   __entry->client_id = task->tk_client->cl_clid;
>   __entry->version = task->tk_client->cl_vers;
>   __entry->async = RPC_IS_ASYNC(task);
> - __assign_str(progname, task->tk_client->cl_program-
> >name);
> - __assign_str(procname, rpc_proc_name(task));
> + __assign_str(progname);
> + __assign_str(procname);
>   ),
>
>   TP_printk(SUNRPC_TRACE_TASK_SPECIFIER " %sv%d %s (%ssync)",
> @@ -439,7 +439,7 @@ DECLARE_EVENT_CLASS(rpc_task_queued,
>   __entry->runstate = task->tk_runstate;
>   __entry->status = task->tk_status;
>   __entry->flags = task->tk_flags;
> - __assign_str(q_name, rpc_qname(q));
> + __assign_str(q_name);
>   ),
>
>   TP_printk(SUNRPC_TRACE_TASK_SPECIFIER
> @@ -515,10 +515,10 @@ DECLARE_EVENT_CLASS(rpc_reply_event,
>   __entry->task_id = task->tk_pid;
>   __entry->client_id = task->tk_client->cl_clid;
>   __entry->xid = be32_to_cpu(task->tk_rqstp->rq_xid);
> - __assign_str(progname, task->tk_client->cl_program-
> >name);
> + __assign_str(progname);
>   __entry->version = task->tk_client->cl_vers;
> - __assign_str(procname, rpc_proc_name(task));
> - __assign_str(servername, task->tk_xprt->servername);
> + __assign_str(procname);
> + __assign_str(servername);
>   ),
>
>   TP_printk(SUNRPC_TRACE_TASK_SPECIFIER
> @@ -647,8 +647,8 @@ TRACE_EVENT(rpc_stats_latency,
>   __entry->task_id = task->tk_pid;
>   __entry->xid = be32_to_cpu(task->tk_rqstp->rq_xid);
>   __entry->version = task->tk_client->cl_vers;
> - __assign_str(progname, task->tk_client->cl_program-
> >name);
> - __assign_str(procname, rpc_proc_name(task));
> + __assign_str(progname);
> + __assign_str(procname);
>   __entry->backlog = ktime_to_us(backlog);
>   __entry->rtt = ktime_to_us(rtt);
>   __entry->execute = ktime_to_us(execute);
> @@ -697,16 +697,15 @@ TRACE_EVENT(rpc_xdr_overflow,
>
>   __entry->task_id = task->tk_pid;
>   __entry->client_id = task->tk_client-
> >cl_clid;
> - __assign_str(progname,
> -      task->tk_client->cl_program-
> >name);
> + __assign_str(progname);
>   __entry->version = task->tk_client->cl_vers;
> - __assign_str(procedure, task-
> >tk_msg.rpc_proc->p_name);
> + __assign_str(procedure);
>   } else {
>   __entry->task_id = -1;
>   __entry->client_id = -1;
> - __assign_str(progname, "unknown");
> + __assign_str(progname);
>   __entry->version = 0;
> - __assign_str(procedure, "unknown");
> + __assign_str(procedure);
>   }
>   __entry->requested = requested;
>   __entry->end = xdr->end;
> @@ -763,10 +762,9 @@ TRACE_EVENT(rpc_xdr_alignment,
>
>   __entry->task_id = task->tk_pid;
>   __entry->client_id = task->tk_client->cl_clid;
> - __assign_str(progname,
> -      task->tk_client->cl_program->name);
> + __assign_str(progname);
>   __entry->version = task->tk_client->cl_vers;
> - __assign_str(procedure, task->tk_msg.rpc_proc-
> >p_name);
> + __assign_str(procedure);
>
>   __entry->offset = offset;
>   __entry->copied = copied;
> @@ -1018,8 +1016,8 @@ DECLARE_EVENT_CLASS(rpc_xprt_lifetime_class,
>
>   TP_fast_assign(
>   __entry->state = xprt->state;
> - __assign_str(addr, xprt-
> >address_strings[RPC_DISPLAY_ADDR]);
> - __assign_str(port, xprt-
> >address_strings[RPC_DISPLAY_PORT]);
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s state=%s",
> @@ -1061,8 +1059,8 @@ DECLARE_EVENT_CLASS(rpc_xprt_event,
>   TP_fast_assign(
>   __entry->xid = be32_to_cpu(xid);
>   __entry->status = status;
> - __assign_str(addr, xprt-
> >address_strings[RPC_DISPLAY_ADDR]);
> - __assign_str(port, xprt-
> >address_strings[RPC_DISPLAY_PORT]);
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s xid=0x%08x status=%d",
> __get_str(addr),
> @@ -1140,10 +1138,9 @@ TRACE_EVENT(xprt_retransmit,
>   __entry->xid = be32_to_cpu(rqst->rq_xid);
>   __entry->ntrans = rqst->rq_ntrans;
>   __entry->timeout = task->tk_timeout;
> - __assign_str(progname,
> -      task->tk_client->cl_program->name);
> + __assign_str(progname);
>   __entry->version = task->tk_client->cl_vers;
> - __assign_str(procname, rpc_proc_name(task));
> + __assign_str(procname);
>   ),
>
>   TP_printk(SUNRPC_TRACE_TASK_SPECIFIER
> @@ -1167,8 +1164,8 @@ TRACE_EVENT(xprt_ping,
>
>   TP_fast_assign(
>   __entry->status = status;
> - __assign_str(addr, xprt-
> >address_strings[RPC_DISPLAY_ADDR]);
> - __assign_str(port, xprt-
> >address_strings[RPC_DISPLAY_PORT]);
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s status=%d",
> @@ -1315,8 +1312,8 @@ TRACE_EVENT(xs_data_ready,
>   ),
>
>   TP_fast_assign(
> - __assign_str(addr, xprt-
> >address_strings[RPC_DISPLAY_ADDR]);
> - __assign_str(port, xprt-
> >address_strings[RPC_DISPLAY_PORT]);
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s", __get_str(addr), __get_str(port))
> @@ -1339,10 +1336,8 @@ TRACE_EVENT(xs_stream_read_data,
>   TP_fast_assign(
>   __entry->err = err;
>   __entry->total = total;
> - __assign_str(addr, xprt ?
> - xprt->address_strings[RPC_DISPLAY_ADDR] :
> EVENT_NULL_STR);
> - __assign_str(port, xprt ?
> - xprt->address_strings[RPC_DISPLAY_PORT] :
> EVENT_NULL_STR);
> + __assign_str(addr);
> + __assign_str(port);
>   ),
>
>   TP_printk("peer=[%s]:%s err=%zd total=%zu", __get_str(addr),
> @@ -1364,8 +1359,8 @@ TRACE_EVENT(xs_stream_read_request,
>   ),
>
>   TP_fast_assign(
> - __assign_str(addr, xs-
> >xprt.address_strings[RPC_DISPLAY_ADDR]);
> - __assign_str(port, xs-
> >xprt.address_strings[RPC_DISPLAY_PORT]);
> + __assign_str(addr);
> + __assign_str(port);
>   __entry->xid = be32_to_cpu(xs->recv.xid);
>   __entry->copied = xs->recv.copied;
>   __entry->reclen = xs->recv.len;
> @@ -1403,7 +1398,7 @@ TRACE_EVENT(rpcb_getport,
>   __entry->version = clnt->cl_vers;
>   __entry->protocol = task->tk_xprt->prot;
>   __entry->bind_version = bind_version;
> - __assign_str(servername, task->tk_xprt->servername);
> + __assign_str(servername);
>   ),
>
>   TP_printk(SUNRPC_TRACE_TASK_SPECIFIER
> @@ -1493,8 +1488,8 @@ TRACE_EVENT(rpcb_register,
>   TP_fast_assign(
>   __entry->program = program;
>   __entry->version = version;
> - __assign_str(addr, addr);
> - __assign_str(netid, netid);
> + __assign_str(addr);
> + __assign_str(netid);
>   ),
>
>   TP_printk("program=%u version=%u addr=%s netid=%s",
> @@ -1521,7 +1516,7 @@ TRACE_EVENT(rpcb_unregister,
>   TP_fast_assign(
>   __entry->program = program;
>   __entry->version = version;
> - __assign_str(netid, netid);
> + __assign_str(netid);
>   ),
>
>   TP_printk("program=%u version=%u netid=%s",
> @@ -1551,8 +1546,8 @@ DECLARE_EVENT_CLASS(rpc_tls_class,
>   TP_fast_assign(
>   __entry->requested_policy = clnt->cl_xprtsec.policy;
>   __entry->version = clnt->cl_vers;
> - __assign_str(servername, xprt->servername);
> - __assign_str(progname, clnt->cl_program->name)
> + __assign_str(servername);
> + __assign_str(progname);
>   ),
>
>   TP_printk("server=%s %sv%u requested_policy=%s",
> @@ -1794,10 +1789,9 @@ TRACE_EVENT(svc_process,
>   __entry->xid = be32_to_cpu(rqst->rq_xid);
>   __entry->vers = rqst->rq_vers;
>   __entry->proc = rqst->rq_proc;
> - __assign_str(service, name);
> - __assign_str(procedure, svc_proc_name(rqst));
> - __assign_str(addr, rqst->rq_xprt ?
> -      rqst->rq_xprt->xpt_remotebuf :
> EVENT_NULL_STR);
> + __assign_str(service);
> + __assign_str(procedure);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s xid=0x%08x service=%s vers=%u proc=%s",
> @@ -1915,7 +1909,7 @@ TRACE_EVENT(svc_stats_latency,
>
>   __entry->execute =
> ktime_to_us(ktime_sub(ktime_get(),
>   rqst-
> >rq_stime));
> - __assign_str(procedure, svc_proc_name(rqst));
> + __assign_str(procedure);
>   ),
>
>   TP_printk(SVC_RQST_ENDPOINT_FORMAT " proc=%s execute-
> us=%lu",
> @@ -1980,8 +1974,8 @@ TRACE_EVENT(svc_xprt_create_err,
>
>   TP_fast_assign(
>   __entry->error = PTR_ERR(xprt);
> - __assign_str(program, program);
> - __assign_str(protocol, protocol);
> + __assign_str(program);
> + __assign_str(protocol);
>   __assign_sockaddr(addr, sap, salen);
>   ),
>
> @@ -2120,8 +2114,8 @@ TRACE_EVENT(svc_xprt_accept,
>   TP_fast_assign(
>   SVC_XPRT_ENDPOINT_ASSIGNMENTS(xprt);
>
> - __assign_str(protocol, xprt->xpt_class->xcl_name);
> - __assign_str(service, service);
> + __assign_str(protocol);
> + __assign_str(service);
>   ),
>
>   TP_printk(SVC_XPRT_ENDPOINT_FORMAT " protocol=%s
> service=%s",
> @@ -2260,7 +2254,7 @@ TRACE_EVENT(svcsock_marker,
>   TP_fast_assign(
>   __entry->length = be32_to_cpu(marker) &
> RPC_FRAGMENT_SIZE_MASK;
>   __entry->last = be32_to_cpu(marker) &
> RPC_LAST_STREAM_FRAGMENT;
> - __assign_str(addr, xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s length=%u%s", __get_str(addr),
> @@ -2284,7 +2278,7 @@ DECLARE_EVENT_CLASS(svcsock_class,
>   TP_fast_assign(
>   __entry->result = result;
>   __entry->flags = xprt->xpt_flags;
> - __assign_str(addr, xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s result=%zd flags=%s", __get_str(addr),
> @@ -2330,7 +2324,7 @@ TRACE_EVENT(svcsock_tcp_recv_short,
>   __entry->expected = expected;
>   __entry->received = received;
>   __entry->flags = xprt->xpt_flags;
> - __assign_str(addr, xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s flags=%s expected=%u received=%u",
> @@ -2358,7 +2352,7 @@ TRACE_EVENT(svcsock_tcp_state,
>   __entry->socket_state = socket->state;
>   __entry->sock_state = socket->sk->sk_state;
>   __entry->flags = xprt->xpt_flags;
> - __assign_str(addr, xprt->xpt_remotebuf);
> + __assign_str(addr);
>   ),
>
>   TP_printk("addr=%s state=%s sk_state=%s flags=%s",
> __get_str(addr),
> @@ -2385,7 +2379,7 @@ DECLARE_EVENT_CLASS(svcsock_accept_class,
>
>   TP_fast_assign(
>   __entry->status = status;
> - __assign_str(service, service);
> + __assign_str(service);
>   __entry->netns_ino = xprt->xpt_net->ns.inum;
>   ),
>
> @@ -2421,7 +2415,7 @@ DECLARE_EVENT_CLASS(cache_event,
>
>   TP_fast_assign(
>   __entry->h = h;
> - __assign_str(name, cd->name);
> + __assign_str(name);
>   ),
>
>   TP_printk("cache=%s entry=%p", __get_str(name), __entry->h)
> @@ -2466,7 +2460,7 @@ DECLARE_EVENT_CLASS(register_class,
>   __entry->protocol = protocol;
>   __entry->port = port;
>   __entry->error = error;
> - __assign_str(program, program);
> + __assign_str(program);
>   ),
>
>   TP_printk("program=%sv%u proto=%s port=%u family=%s
> error=%d",
> @@ -2511,7 +2505,7 @@ TRACE_EVENT(svc_unregister,
>   TP_fast_assign(
>   __entry->version = version;
>   __entry->error = error;
> - __assign_str(program, program);
> + __assign_str(program);
>   ),
>
>   TP_printk("program=%sv%u error=%d",
> diff --git a/include/trace/events/swiotlb.h
> b/include/trace/events/swiotlb.h
> index da05c9ebd224..3b6ddb136e4e 100644
> --- a/include/trace/events/swiotlb.h
> +++ b/include/trace/events/swiotlb.h
> @@ -20,7 +20,7 @@ TRACE_EVENT(swiotlb_bounced,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name(dev));
> + __assign_str(dev_name);
>   __entry->dma_mask = (dev->dma_mask ? *dev->dma_mask
> : 0);
>   __entry->dev_addr = dev_addr;
>   __entry->size = size;
> diff --git a/include/trace/events/target.h
> b/include/trace/events/target.h
> index 67fad2677ed5..a13cbf2b3405 100644
> --- a/include/trace/events/target.h
> +++ b/include/trace/events/target.h
> @@ -154,7 +154,7 @@ TRACE_EVENT(target_sequencer_start,
>   __entry->task_attribute = cmd-
> >sam_task_attr;
>   __entry->control = scsi_command_control(cmd-
> >t_task_cdb);
>   memcpy(__entry->cdb, cmd->t_task_cdb,
> TCM_MAX_COMMAND_SIZE);
> - __assign_str(initiator, cmd->se_sess->se_node_acl-
> >initiatorname);
> + __assign_str(initiator);
>   ),
>
>   TP_printk("%s -> LUN %03u tag %#llx %s data_length %6u  CDB
> %s  (TA:%s C:%02x)",
> @@ -198,7 +198,7 @@ TRACE_EVENT(target_cmd_complete,
>   min(18, ((u8 *) cmd-
> >sense_buffer)[SPC_ADD_SENSE_LEN_OFFSET] + 8) : 0;
>   memcpy(__entry->cdb, cmd->t_task_cdb,
> TCM_MAX_COMMAND_SIZE);
>   memcpy(__entry->sense_data, cmd->sense_buffer,
> __entry->sense_length);
> - __assign_str(initiator, cmd->se_sess->se_node_acl-
> >initiatorname);
> + __assign_str(initiator);
>   ),
>
>   TP_printk("%s <- LUN %03u tag %#llx status %s (sense len
> %d%s%s)  %s data_length %6u  CDB %s  (TA:%s C:%02x)",
> diff --git a/include/trace/events/tegra_apb_dma.h
> b/include/trace/events/tegra_apb_dma.h
> index 971cd02d2daf..6d9f5075baa3 100644
> --- a/include/trace/events/tegra_apb_dma.h
> +++ b/include/trace/events/tegra_apb_dma.h
> @@ -16,7 +16,7 @@ TRACE_EVENT(tegra_dma_tx_status,
>   __field(__u32, residue)
>   ),
>   TP_fast_assign(
> - __assign_str(chan, dev_name(&dc->dev->device));
> + __assign_str(chan);
>   __entry->cookie = cookie;
>   __entry->residue = state ? state->residue : (u32)-1;
>   ),
> @@ -33,7 +33,7 @@ TRACE_EVENT(tegra_dma_complete_cb,
>   __field(void *, ptr)
>   ),
>   TP_fast_assign(
> - __assign_str(chan, dev_name(&dc->dev->device));
> + __assign_str(chan);
>   __entry->count = count;
>   __entry->ptr = ptr;
>   ),
> @@ -49,7 +49,7 @@ TRACE_EVENT(tegra_dma_isr,
>   __field(int, irq)
>   ),
>   TP_fast_assign(
> - __assign_str(chan, dev_name(&dc->dev->device));
> + __assign_str(chan);
>   __entry->irq = irq;
>   ),
>   TP_printk("%s: irq %d\n",  __get_str(chan), __entry->irq)
> diff --git a/include/trace/events/ufs.h b/include/trace/events/ufs.h
> index b930669bd1f0..c4e209fbdfbb 100644
> --- a/include/trace/events/ufs.h
> +++ b/include/trace/events/ufs.h
> @@ -92,7 +92,7 @@ TRACE_EVENT(ufshcd_clk_gating,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name);
> + __assign_str(dev_name);
>   __entry->state = state;
>   ),
>
> @@ -117,9 +117,9 @@ TRACE_EVENT(ufshcd_clk_scaling,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name);
> - __assign_str(state, state);
> - __assign_str(clk, clk);
> + __assign_str(dev_name);
> + __assign_str(state);
> + __assign_str(clk);
>   __entry->prev_state = prev_state;
>   __entry->curr_state = curr_state;
>   ),
> @@ -141,8 +141,8 @@ TRACE_EVENT(ufshcd_auto_bkops_state,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name);
> - __assign_str(state, state);
> + __assign_str(dev_name);
> + __assign_str(state);
>   ),
>
>   TP_printk("%s: auto bkops - %s",
> @@ -163,8 +163,8 @@ DECLARE_EVENT_CLASS(ufshcd_profiling_template,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name);
> - __assign_str(profile_info, profile_info);
> + __assign_str(dev_name);
> + __assign_str(profile_info);
>   __entry->time_us = time_us;
>   __entry->err = err;
>   ),
> @@ -206,7 +206,7 @@ DECLARE_EVENT_CLASS(ufshcd_template,
>   TP_fast_assign(
>   __entry->usecs = usecs;
>   __entry->err = err;
> - __assign_str(dev_name, dev_name);
> + __assign_str(dev_name);
>   __entry->dev_state = dev_state;
>   __entry->link_state = link_state;
>   ),
> @@ -326,7 +326,7 @@ TRACE_EVENT(ufshcd_uic_command,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name);
> + __assign_str(dev_name);
>   __entry->str_t = str_t;
>   __entry->cmd = cmd;
>   __entry->arg1 = arg1;
> @@ -356,7 +356,7 @@ TRACE_EVENT(ufshcd_upiu,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name);
> + __assign_str(dev_name);
>   __entry->str_t = str_t;
>   memcpy(__entry->hdr, hdr, sizeof(__entry->hdr));
>   memcpy(__entry->tsf, tsf, sizeof(__entry->tsf));
> @@ -384,7 +384,7 @@ TRACE_EVENT(ufshcd_exception_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev_name);
> + __assign_str(dev_name);
>   __entry->status = status;
>   ),
>
> diff --git a/include/trace/events/workqueue.h
> b/include/trace/events/workqueue.h
> index 262d52021c23..51b0e874f667 100644
> --- a/include/trace/events/workqueue.h
> +++ b/include/trace/events/workqueue.h
> @@ -38,7 +38,7 @@ TRACE_EVENT(workqueue_queue_work,
>   TP_fast_assign(
>   __entry->work = work;
>   __entry->function = work->func;
> - __assign_str(workqueue, pwq->wq->name);
> + __assign_str(workqueue);
>   __entry->req_cpu = req_cpu;
>   __entry->cpu = pwq->pool->cpu;
>   ),
> diff --git a/include/trace/events/xdp.h b/include/trace/events/xdp.h
> index 9adc2bdf2f94..a7e5452b5d21 100644
> --- a/include/trace/events/xdp.h
> +++ b/include/trace/events/xdp.h
> @@ -416,7 +416,7 @@ TRACE_EVENT(bpf_xdp_link_attach_failed,
>   ),
>
>   TP_fast_assign(
> - __assign_str(msg, msg);
> + __assign_str(msg);
>   ),
>
>   TP_printk("errmsg=%s", __get_str(msg))
> diff --git a/include/trace/stages/stage6_event_callback.h
> b/include/trace/stages/stage6_event_callback.h
> index 3690e677263f..1691676fd858 100644
> --- a/include/trace/stages/stage6_event_callback.h
> +++ b/include/trace/stages/stage6_event_callback.h
> @@ -31,12 +31,10 @@
>  #define __vstring(item, fmt, ap) __dynamic_array(char, item, -1)
>
>  #undef __assign_str
> -#define __assign_str(dst,
> src) \
> +#define
> __assign_str(dst) \
>   do
> { \
>   char *__str__ =
> __get_str(dst); \
>   int __len__ = __get_dynamic_array_len(dst) -
> 1; \
> - WARN_ON_ONCE(!(void *)(src) != !(void
> *)__data_offsets.dst##_ptr_); \
> - WARN_ON_ONCE((src) && strcmp((src),
> __data_offsets.dst##_ptr_)); \
>   memcpy(__str__, __data_offsets.dst##_ptr_ ?
> : \
>          EVENT_NULL_STR,
> __len__); \
>   __str__[__len__] =
> '\0'; \
> diff --git a/kernel/trace/bpf_trace.h b/kernel/trace/bpf_trace.h
> index 9acbc11ac7bb..c4075b56becc 100644
> --- a/kernel/trace/bpf_trace.h
> +++ b/kernel/trace/bpf_trace.h
> @@ -19,7 +19,7 @@ TRACE_EVENT(bpf_trace_printk,
>   ),
>
>   TP_fast_assign(
> - __assign_str(bpf_string, bpf_string);
> + __assign_str(bpf_string);
>   ),
>
>   TP_printk("%s", __get_str(bpf_string))
> diff --git a/net/batman-adv/trace.h b/net/batman-adv/trace.h
> index 5dd52bc5cabb..6b816cf1a953 100644
> --- a/net/batman-adv/trace.h
> +++ b/net/batman-adv/trace.h
> @@ -40,8 +40,8 @@ TRACE_EVENT(batadv_dbg,
>       ),
>
>       TP_fast_assign(
> -     __assign_str(device, bat_priv->soft_iface-
> >name);
> -     __assign_str(driver, KBUILD_MODNAME);
> +     __assign_str(device);
> +     __assign_str(driver);
>       __assign_vstr(msg, vaf->fmt, vaf->va);
>       ),
>
> diff --git a/net/dsa/trace.h b/net/dsa/trace.h
> index 567f29a39707..83f3e5f78491 100644
> --- a/net/dsa/trace.h
> +++ b/net/dsa/trace.h
> @@ -39,8 +39,8 @@ DECLARE_EVENT_CLASS(dsa_port_addr_op_hw,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dp->ds->dev));
> - __assign_str(kind, dsa_port_kind(dp));
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->port = dp->index;
>   ether_addr_copy(__entry->addr, addr);
>   __entry->vid = vid;
> @@ -98,8 +98,8 @@ DECLARE_EVENT_CLASS(dsa_port_addr_op_refcount,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dp->ds->dev));
> - __assign_str(kind, dsa_port_kind(dp));
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->port = dp->index;
>   ether_addr_copy(__entry->addr, addr);
>   __entry->vid = vid;
> @@ -157,8 +157,8 @@ DECLARE_EVENT_CLASS(dsa_port_addr_del_not_found,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dp->ds->dev));
> - __assign_str(kind, dsa_port_kind(dp));
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->port = dp->index;
>   ether_addr_copy(__entry->addr, addr);
>   __entry->vid = vid;
> @@ -199,7 +199,7 @@ TRACE_EVENT(dsa_lag_fdb_add_hw,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, lag_dev->name);
> + __assign_str(dev);
>   ether_addr_copy(__entry->addr, addr);
>   __entry->vid = vid;
>   dsa_db_print(db, __entry->db_buf);
> @@ -227,7 +227,7 @@ TRACE_EVENT(dsa_lag_fdb_add_bump,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, lag_dev->name);
> + __assign_str(dev);
>   ether_addr_copy(__entry->addr, addr);
>   __entry->vid = vid;
>   dsa_db_print(db, __entry->db_buf);
> @@ -255,7 +255,7 @@ TRACE_EVENT(dsa_lag_fdb_del_hw,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, lag_dev->name);
> + __assign_str(dev);
>   ether_addr_copy(__entry->addr, addr);
>   __entry->vid = vid;
>   dsa_db_print(db, __entry->db_buf);
> @@ -283,7 +283,7 @@ TRACE_EVENT(dsa_lag_fdb_del_drop,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, lag_dev->name);
> + __assign_str(dev);
>   ether_addr_copy(__entry->addr, addr);
>   __entry->vid = vid;
>   dsa_db_print(db, __entry->db_buf);
> @@ -310,7 +310,7 @@ TRACE_EVENT(dsa_lag_fdb_del_not_found,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, lag_dev->name);
> + __assign_str(dev);
>   ether_addr_copy(__entry->addr, addr);
>   __entry->vid = vid;
>   dsa_db_print(db, __entry->db_buf);
> @@ -338,8 +338,8 @@ DECLARE_EVENT_CLASS(dsa_vlan_op_hw,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dp->ds->dev));
> - __assign_str(kind, dsa_port_kind(dp));
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->port = dp->index;
>   __entry->vid = vlan->vid;
>   __entry->flags = vlan->flags;
> @@ -383,8 +383,8 @@ DECLARE_EVENT_CLASS(dsa_vlan_op_refcount,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dp->ds->dev));
> - __assign_str(kind, dsa_port_kind(dp));
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->port = dp->index;
>   __entry->vid = vlan->vid;
>   __entry->flags = vlan->flags;
> @@ -426,8 +426,8 @@ TRACE_EVENT(dsa_vlan_del_not_found,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev, dev_name(dp->ds->dev));
> - __assign_str(kind, dsa_port_kind(dp));
> + __assign_str(dev);
> + __assign_str(kind);
>   __entry->port = dp->index;
>   __entry->vid = vlan->vid;
>   ),
> diff --git a/net/ieee802154/trace.h b/net/ieee802154/trace.h
> index 62aa6465253a..591ce0a16fc0 100644
> --- a/net/ieee802154/trace.h
> +++ b/net/ieee802154/trace.h
> @@ -75,7 +75,7 @@ TRACE_EVENT(802154_rdev_add_virtual_intf,
>   ),
>   TP_fast_assign(
>   WPAN_PHY_ASSIGN;
> - __assign_str(vir_intf_name, name ? name :
> "<noname>");
> + __assign_str(vir_intf_name);
>   __entry->type = type;
>   __entry->extended_addr = extended_addr;
>   ),
> diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
> index 8e758b5074bd..b26aacfbc622 100644
> --- a/net/mac80211/trace.h
> +++ b/net/mac80211/trace.h
> @@ -33,7 +33,7 @@
>   __string(vif_name, sdata->name)
>  #define VIF_ASSIGN __entry->vif_type = sdata->vif.type;
> __entry->sdata = sdata; \
>   __entry->p2p = sdata-
> >vif.p2p; \
> - __assign_str(vif_name, sdata->name)
> + __assign_str(vif_name)
>  #define VIF_PR_FMT " vif:%s(%d%s)"
>  #define VIF_PR_ARG __get_str(vif_name), __entry->vif_type,
> __entry->p2p ? "/p2p" : ""
>
> diff --git a/net/openvswitch/openvswitch_trace.h
> b/net/openvswitch/openvswitch_trace.h
> index 3eb35d9eb700..74d75aaebef4 100644
> --- a/net/openvswitch/openvswitch_trace.h
> +++ b/net/openvswitch/openvswitch_trace.h
> @@ -43,8 +43,8 @@ TRACE_EVENT(ovs_do_execute_action,
>
>   TP_fast_assign(
>   __entry->dpaddr = dp;
> - __assign_str(dp_name, ovs_dp_name(dp));
> - __assign_str(dev_name, skb->dev->name);
> + __assign_str(dp_name);
> + __assign_str(dev_name);
>   __entry->skbaddr = skb;
>   __entry->len = skb->len;
>   __entry->data_len = skb->data_len;
> @@ -113,8 +113,8 @@ TRACE_EVENT(ovs_dp_upcall,
>
>   TP_fast_assign(
>   __entry->dpaddr = dp;
> - __assign_str(dp_name, ovs_dp_name(dp));
> - __assign_str(dev_name, skb->dev->name);
> + __assign_str(dp_name);
> + __assign_str(dev_name);
>   __entry->skbaddr = skb;
>   __entry->len = skb->len;
>   __entry->data_len = skb->data_len;
> diff --git a/net/smc/smc_tracepoint.h b/net/smc/smc_tracepoint.h
> index 9fc5e586d24a..a9a6e3c1113a 100644
> --- a/net/smc/smc_tracepoint.h
> +++ b/net/smc/smc_tracepoint.h
> @@ -60,7 +60,7 @@ DECLARE_EVENT_CLASS(smc_msg_event,
>      __entry->smc = smc;
>      __entry->net_cookie =
> sock_net(sk)->net_cookie;
>      __entry->len = len;
> -    __assign_str(name, smc->conn.lnk-
> >ibname);
> +    __assign_str(name);
>       ),
>
>       TP_printk("smc=%p net=%llu len=%zu dev=%s",
> @@ -104,7 +104,7 @@ TRACE_EVENT(smcr_link_down,
>      __entry->lgr = lgr;
>      __entry->net_cookie = lgr->net-
> >net_cookie;
>      __entry->state = lnk->state;
> -    __assign_str(name, lnk->ibname);
> +    __assign_str(name);
>      __entry->location = location;
>       ),
>
> diff --git a/net/tipc/trace.h b/net/tipc/trace.h
> index 04af83f0500c..865142ed0ab4 100644
> --- a/net/tipc/trace.h
> +++ b/net/tipc/trace.h
> @@ -145,7 +145,7 @@ DECLARE_EVENT_CLASS(tipc_skb_class,
>   ),
>
>   TP_fast_assign(
> - __assign_str(header, header);
> + __assign_str(header);
>   tipc_skb_dump(skb, more, __get_str(buf));
>   ),
>
> @@ -172,7 +172,7 @@ DECLARE_EVENT_CLASS(tipc_list_class,
>   ),
>
>   TP_fast_assign(
> - __assign_str(header, header);
> + __assign_str(header);
>   tipc_list_dump(list, more, __get_str(buf));
>   ),
>
> @@ -200,7 +200,7 @@ DECLARE_EVENT_CLASS(tipc_sk_class,
>   ),
>
>   TP_fast_assign(
> - __assign_str(header, header);
> + __assign_str(header);
>   __entry->portid = tipc_sock_get_portid(sk);
>   tipc_sk_dump(sk, dqueues, __get_str(buf));
>   if (skb)
> @@ -254,7 +254,7 @@ DECLARE_EVENT_CLASS(tipc_link_class,
>   ),
>
>   TP_fast_assign(
> - __assign_str(header, header);
> + __assign_str(header);
>   memcpy(__entry->name, tipc_link_name(l),
> TIPC_MAX_LINK_NAME);
>   tipc_link_dump(l, dqueues, __get_str(buf));
>   ),
> @@ -337,7 +337,7 @@ DECLARE_EVENT_CLASS(tipc_node_class,
>   ),
>
>   TP_fast_assign(
> - __assign_str(header, header);
> + __assign_str(header);
>   __entry->addr = tipc_node_get_addr(n);
>   tipc_node_dump(n, more, __get_str(buf));
>   ),
> @@ -374,7 +374,7 @@ DECLARE_EVENT_CLASS(tipc_fsm_class,
>   ),
>
>   TP_fast_assign(
> - __assign_str(name, name);
> + __assign_str(name);
>   __entry->os = os;
>   __entry->ns = ns;
>   __entry->evt = evt;
> @@ -409,8 +409,8 @@ TRACE_EVENT(tipc_l2_device_event,
>   ),
>
>   TP_fast_assign(
> - __assign_str(dev_name, dev->name);
> - __assign_str(b_name, b->name);
> + __assign_str(dev_name);
> + __assign_str(b_name);
>   __entry->evt = evt;
>   __entry->b_up = test_bit(0, &b->up);
>   __entry->carrier = netif_carrier_ok(dev);
> diff --git a/net/wireless/trace.h b/net/wireless/trace.h
> index 9bf987519811..87986170d1b1 100644
> --- a/net/wireless/trace.h
> +++ b/net/wireless/trace.h
> @@ -372,7 +372,7 @@ TRACE_EVENT(rdev_add_virtual_intf,
>   ),
>   TP_fast_assign(
>   WIPHY_ASSIGN;
> - __assign_str(vir_intf_name, name ? name :
> "<noname>");
> + __assign_str(vir_intf_name);
>   __entry->type = type;
>   ),
>   TP_printk(WIPHY_PR_FMT ", virtual intf name: %s, type: %d",
> diff --git a/samples/trace_events/trace-events-sample.h
> b/samples/trace_events/trace-events-sample.h
> index 500981eca74d..55f9a3da92d5 100644
> --- a/samples/trace_events/trace-events-sample.h
> +++ b/samples/trace_events/trace-events-sample.h
> @@ -136,10 +136,11 @@
>   *
>   *         To assign a string, use the helper macro __assign_str().
>   *
> - *         __assign_str(foo, bar);
> + *         __assign_str(foo);
>   *
> - *         In most cases, the __assign_str() macro will take the
> same
> - *         parameters as the __string() macro had to declare the
> string.
> + *    The __string() macro saves off the string that is passed
> into
> + *         the second parameter, and the __assign_str() will store
> than
> + *         saved string into the "foo" field.
>   *
>   *   __vstring: This is similar to __string() but instead of taking
> a
>   *         dynamic length, it takes a variable list va_list 'va'
> variable.
> @@ -177,7 +178,7 @@
>   *         The length is saved via the __string_len() and is
> retrieved in
>   *         __assign_str().
>   *
> - *         __assign_str(foo, bar);
> + *         __assign_str(foo);
>   *
>   *         Then len + 1 is allocated to the ring buffer, and a nul
> terminating
>   *         byte is added. This is similar to:
> @@ -311,8 +312,8 @@ TRACE_EVENT(foo_bar,
>   __entry->bar = bar;
>   memcpy(__get_dynamic_array(list), lst,
>          __length_of(lst) * sizeof(int));
> - __assign_str(str, string);
> - __assign_str(lstr, foo);
> + __assign_str(str);
> + __assign_str(lstr);
>   __assign_vstr(vstr, fmt, va);
>   __assign_bitmask(cpus, cpumask_bits(mask),
> num_possible_cpus());
>   __assign_cpumask(cpum, cpumask_bits(mask));
> @@ -418,7 +419,7 @@ TRACE_EVENT_CONDITION(foo_bar_with_cond,
>   ),
>
>   TP_fast_assign(
> - __assign_str(foo, foo);
> + __assign_str(foo);
>   __entry->bar = bar;
>   ),
>
> @@ -459,7 +460,7 @@ TRACE_EVENT_FN(foo_bar_with_fn,
>   ),
>
>   TP_fast_assign(
> - __assign_str(foo, foo);
> + __assign_str(foo);
>   __entry->bar = bar;
>   ),
>
> @@ -506,7 +507,7 @@ DECLARE_EVENT_CLASS(foo_template,
>   ),
>
>   TP_fast_assign(
> - __assign_str(foo, foo);
> + __assign_str(foo);
>   __entry->bar = bar;
>   ),
>
> diff --git a/sound/core/pcm_trace.h b/sound/core/pcm_trace.h
> index 350b40b906ca..adb9b1f3bbfa 100644
> --- a/sound/core/pcm_trace.h
> +++ b/sound/core/pcm_trace.h
> @@ -95,7 +95,7 @@ TRACE_EVENT(hw_ptr_error,
>   __entry->device = (substream)->pcm->device;
>   __entry->number = (substream)->number;
>   __entry->stream = (substream)->stream;
> - __assign_str(reason, why);
> + __assign_str(reason);
>   ),
>   TP_printk("pcmC%dD%d%s/sub%d: ERROR: %s",
>     __entry->card, __entry->device,
> diff --git a/sound/hda/trace.h b/sound/hda/trace.h
> index 2cc493434a8f..280c42f3eb75 100644
> --- a/sound/hda/trace.h
> +++ b/sound/hda/trace.h
> @@ -24,7 +24,7 @@ TRACE_EVENT(hda_send_cmd,
>   __field(u32, cmd)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name((bus)->dev));
> + __assign_str(name);
>   __entry->cmd = cmd;
>   ),
>   TP_printk("[%s:%d] val=0x%08x", __get_str(name), __entry-
> >cmd >> 28, __entry->cmd)
> @@ -39,7 +39,7 @@ TRACE_EVENT(hda_get_response,
>   __field(u32, res)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name((bus)->dev));
> + __assign_str(name);
>   __entry->addr = addr;
>   __entry->res = res;
>   ),
> @@ -55,7 +55,7 @@ TRACE_EVENT(hda_unsol_event,
>   __field(u32, res_ex)
>   ),
>   TP_fast_assign(
> - __assign_str(name, dev_name((bus)->dev));
> + __assign_str(name);
>   __entry->res = res;
>   __entry->res_ex = res_ex;
>   ),
> diff --git a/sound/soc/intel/avs/trace.h
> b/sound/soc/intel/avs/trace.h
> index 855b06bb14b0..c9eaa5a60ed3 100644
> --- a/sound/soc/intel/avs/trace.h
> +++ b/sound/soc/intel/avs/trace.h
> @@ -24,7 +24,7 @@ TRACE_EVENT(avs_dsp_core_op,
>   TP_fast_assign(
>   __entry->reg = reg;
>   __entry->mask = mask;
> - __assign_str(op, op);
> + __assign_str(op);
>   __entry->flag = flag;
>   ),
>
> @@ -135,7 +135,7 @@ TRACE_EVENT(avs_d0ix,
>   ),
>
>   TP_fast_assign(
> - __assign_str(op, op);
> + __assign_str(op);
>   __entry->proceed = proceed;
>   __entry->header = header;
>   ),