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1b756b372f
Instead of open coding a __dynamic_array() with a fixed length (which defeats the purpose of the dynamic array in the first place). Use the new __vstring() helper that will use a va_list and only write enough of the string into the ring buffer that is needed. Link: https://lkml.kernel.org/r/20220705224749.991587733@goodmis.org Cc: Peter Chen <peter.chen@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-usb@vger.kernel.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Trace support header file for device mode
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*
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* Copyright (C) 2020 NXP
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*
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* Author: Peter Chen <peter.chen@nxp.com>
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM chipidea
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#if !defined(__LINUX_CHIPIDEA_TRACE) || defined(TRACE_HEADER_MULTI_READ)
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#define __LINUX_CHIPIDEA_TRACE
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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#include <linux/usb/chipidea.h>
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#include "ci.h"
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#include "udc.h"
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#define CHIPIDEA_MSG_MAX 500
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void ci_log(struct ci_hdrc *ci, const char *fmt, ...);
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TRACE_EVENT(ci_log,
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TP_PROTO(struct ci_hdrc *ci, struct va_format *vaf),
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TP_ARGS(ci, vaf),
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TP_STRUCT__entry(
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__string(name, dev_name(ci->dev))
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__vstring(msg, vaf->fmt, vaf->va)
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),
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TP_fast_assign(
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__assign_str(name, dev_name(ci->dev));
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__assign_vstr(msg, vaf->fmt, vaf->va);
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),
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TP_printk("%s: %s", __get_str(name), __get_str(msg))
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);
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DECLARE_EVENT_CLASS(ci_log_trb,
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TP_PROTO(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq, struct td_node *td),
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TP_ARGS(hwep, hwreq, td),
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TP_STRUCT__entry(
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__string(name, hwep->name)
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__field(struct td_node *, td)
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__field(struct usb_request *, req)
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__field(dma_addr_t, dma)
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__field(s32, td_remaining_size)
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__field(u32, next)
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__field(u32, token)
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__field(u32, type)
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),
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TP_fast_assign(
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__assign_str(name, hwep->name);
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__entry->req = &hwreq->req;
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__entry->td = td;
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__entry->dma = td->dma;
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__entry->td_remaining_size = td->td_remaining_size;
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__entry->next = le32_to_cpu(td->ptr->next);
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__entry->token = le32_to_cpu(td->ptr->token);
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__entry->type = usb_endpoint_type(hwep->ep.desc);
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),
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TP_printk("%s: req: %p, td: %p, td_dma_address: %pad, remaining_size: %d, "
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"next: %x, total bytes: %d, status: %lx",
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__get_str(name), __entry->req, __entry->td, &__entry->dma,
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__entry->td_remaining_size, __entry->next,
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(int)((__entry->token & TD_TOTAL_BYTES) >> __ffs(TD_TOTAL_BYTES)),
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__entry->token & TD_STATUS
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)
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);
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DEFINE_EVENT(ci_log_trb, ci_prepare_td,
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TP_PROTO(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq, struct td_node *td),
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TP_ARGS(hwep, hwreq, td)
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);
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DEFINE_EVENT(ci_log_trb, ci_complete_td,
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TP_PROTO(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq, struct td_node *td),
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TP_ARGS(hwep, hwreq, td)
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);
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#endif /* __LINUX_CHIPIDEA_TRACE */
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/* this part must be outside header guard */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE trace
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#include <trace/define_trace.h>
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