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https://gitee.com/bianbu-linux/linux-6.6
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1a77dd1c2b
Fix this compilation error seen when CONFIG_TRACING is not enabled:
drivers/scsi/qla2xxx/qla_os.c: In function 'qla_trace_init':
drivers/scsi/qla2xxx/qla_os.c:2854:25: error: implicit declaration of function
'trace_array_get_by_name'; did you mean 'trace_array_set_clr_event'?
[-Werror=implicit-function-declaration]
2854 | qla_trc_array = trace_array_get_by_name("qla2xxx");
| ^~~~~~~~~~~~~~~~~~~~~~~
| trace_array_set_clr_event
drivers/scsi/qla2xxx/qla_os.c: In function 'qla_trace_uninit':
drivers/scsi/qla2xxx/qla_os.c:2869:9: error: implicit declaration of function
'trace_array_put' [-Werror=implicit-function-declaration]
2869 | trace_array_put(qla_trc_array);
| ^~~~~~~~~~~~~~~
Link: https://lore.kernel.org/r/20220907233308.4153-2-aeasi@marvell.com
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_TRACE_H
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#define _LINUX_TRACE_H
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#define TRACE_EXPORT_FUNCTION BIT(0)
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#define TRACE_EXPORT_EVENT BIT(1)
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#define TRACE_EXPORT_MARKER BIT(2)
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/*
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* The trace export - an export of Ftrace output. The trace_export
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* can process traces and export them to a registered destination as
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* an addition to the current only output of Ftrace - i.e. ring buffer.
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*
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* If you want traces to be sent to some other place rather than ring
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* buffer only, just need to register a new trace_export and implement
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* its own .write() function for writing traces to the storage.
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*
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* next - pointer to the next trace_export
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* write - copy traces which have been delt with ->commit() to
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* the destination
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* flags - which ftrace to be exported
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*/
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struct trace_export {
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struct trace_export __rcu *next;
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void (*write)(struct trace_export *, const void *, unsigned int);
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int flags;
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};
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#ifdef CONFIG_TRACING
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int register_ftrace_export(struct trace_export *export);
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int unregister_ftrace_export(struct trace_export *export);
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struct trace_array;
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void trace_printk_init_buffers(void);
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__printf(3, 4)
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int trace_array_printk(struct trace_array *tr, unsigned long ip,
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const char *fmt, ...);
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int trace_array_init_printk(struct trace_array *tr);
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void trace_array_put(struct trace_array *tr);
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struct trace_array *trace_array_get_by_name(const char *name);
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int trace_array_destroy(struct trace_array *tr);
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/* For osnoise tracer */
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int osnoise_arch_register(void);
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void osnoise_arch_unregister(void);
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void osnoise_trace_irq_entry(int id);
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void osnoise_trace_irq_exit(int id, const char *desc);
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#else /* CONFIG_TRACING */
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static inline int register_ftrace_export(struct trace_export *export)
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{
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return -EINVAL;
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}
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static inline int unregister_ftrace_export(struct trace_export *export)
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{
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return 0;
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}
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static inline void trace_printk_init_buffers(void)
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{
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}
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static inline int trace_array_printk(struct trace_array *tr, unsigned long ip,
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const char *fmt, ...)
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{
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return 0;
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}
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static inline int trace_array_init_printk(struct trace_array *tr)
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{
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return -EINVAL;
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}
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static inline void trace_array_put(struct trace_array *tr)
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{
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}
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static inline struct trace_array *trace_array_get_by_name(const char *name)
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{
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return NULL;
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}
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static inline int trace_array_destroy(struct trace_array *tr)
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{
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return 0;
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}
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#endif /* CONFIG_TRACING */
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#endif /* _LINUX_TRACE_H */
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