mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-02 08:32:55 +00:00
2c92ca849f
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/
Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home
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: Jani Nikula <jani.nikula@intel.com>
Acked-by: Christian König <christian.koenig@amd.com> for the amdgpu parts.
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> #for
Acked-by: Rafael J. Wysocki <rafael@kernel.org> # for thermal
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Darrick J. Wong <djwong@kernel.org> # xfs
Tested-by: Guenter Roeck <linux@roeck-us.net>
118 lines
2.5 KiB
C
118 lines
2.5 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM funeth
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#if !defined(_TRACE_FUNETH_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_FUNETH_H
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#include <linux/tracepoint.h>
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#include "funeth_txrx.h"
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TRACE_EVENT(funeth_tx,
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TP_PROTO(const struct funeth_txq *txq,
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u32 len,
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u32 sqe_idx,
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u32 ngle),
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TP_ARGS(txq, len, sqe_idx, ngle),
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TP_STRUCT__entry(
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__field(u32, qidx)
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__field(u32, len)
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__field(u32, sqe_idx)
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__field(u32, ngle)
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__string(devname, txq->netdev->name)
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),
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TP_fast_assign(
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__entry->qidx = txq->qidx;
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__entry->len = len;
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__entry->sqe_idx = sqe_idx;
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__entry->ngle = ngle;
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__assign_str(devname);
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),
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TP_printk("%s: Txq %u, SQE idx %u, len %u, num GLEs %u",
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__get_str(devname), __entry->qidx, __entry->sqe_idx,
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__entry->len, __entry->ngle)
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);
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TRACE_EVENT(funeth_tx_free,
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TP_PROTO(const struct funeth_txq *txq,
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u32 sqe_idx,
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u32 num_sqes,
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u32 hw_head),
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TP_ARGS(txq, sqe_idx, num_sqes, hw_head),
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TP_STRUCT__entry(
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__field(u32, qidx)
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__field(u32, sqe_idx)
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__field(u32, num_sqes)
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__field(u32, hw_head)
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__string(devname, txq->netdev->name)
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),
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TP_fast_assign(
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__entry->qidx = txq->qidx;
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__entry->sqe_idx = sqe_idx;
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__entry->num_sqes = num_sqes;
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__entry->hw_head = hw_head;
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__assign_str(devname);
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),
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TP_printk("%s: Txq %u, SQE idx %u, SQEs %u, HW head %u",
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__get_str(devname), __entry->qidx, __entry->sqe_idx,
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__entry->num_sqes, __entry->hw_head)
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);
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TRACE_EVENT(funeth_rx,
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TP_PROTO(const struct funeth_rxq *rxq,
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u32 num_rqes,
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u32 pkt_len,
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u32 hash,
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u32 cls_vec),
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TP_ARGS(rxq, num_rqes, pkt_len, hash, cls_vec),
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TP_STRUCT__entry(
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__field(u32, qidx)
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__field(u32, cq_head)
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__field(u32, num_rqes)
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__field(u32, len)
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__field(u32, hash)
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__field(u32, cls_vec)
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__string(devname, rxq->netdev->name)
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),
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TP_fast_assign(
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__entry->qidx = rxq->qidx;
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__entry->cq_head = rxq->cq_head;
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__entry->num_rqes = num_rqes;
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__entry->len = pkt_len;
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__entry->hash = hash;
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__entry->cls_vec = cls_vec;
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__assign_str(devname);
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),
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TP_printk("%s: Rxq %u, CQ head %u, RQEs %u, len %u, hash %u, CV %#x",
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__get_str(devname), __entry->qidx, __entry->cq_head,
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__entry->num_rqes, __entry->len, __entry->hash,
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__entry->cls_vec)
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);
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#endif /* _TRACE_FUNETH_H */
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/* Below must be outside protection. */
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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 funeth_trace
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#include <trace/define_trace.h>
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