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0566e40ce7
Using initcall_t in the __field macro generates the following warning
with clang version 6.0:
include/trace/events/initcall.h:34:3: warning: ordered comparison of
function pointers ('initcall_t' (aka 'int (*)(void)') and 'initcall_t')
__field macro expands to __field_ext macro which does is_signed_type
check on the type argument. Since initcall_t is defined as a function
pointer, using it as the type in the __field macro, leads to an ordered
comparison of function pointer warning, inside the check. Using
__field_struct macro avoids the issue.
Link: http://lkml.kernel.org/r/1524699755-29388-1-git-send-email-rishabhb@codeaurora.org
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
[ Added comment to why we are using field_struct() ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM initcall
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#if !defined(_TRACE_INITCALL_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_INITCALL_H
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#include <linux/tracepoint.h>
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TRACE_EVENT(initcall_level,
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TP_PROTO(const char *level),
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TP_ARGS(level),
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TP_STRUCT__entry(
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__string(level, level)
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),
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TP_fast_assign(
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__assign_str(level, level);
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),
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TP_printk("level=%s", __get_str(level))
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);
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TRACE_EVENT(initcall_start,
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TP_PROTO(initcall_t func),
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TP_ARGS(func),
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TP_STRUCT__entry(
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/*
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* Use field_struct to avoid is_signed_type()
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* comparison of a function pointer
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*/
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__field_struct(initcall_t, func)
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),
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TP_fast_assign(
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__entry->func = func;
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),
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TP_printk("func=%pS", __entry->func)
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);
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TRACE_EVENT(initcall_finish,
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TP_PROTO(initcall_t func, int ret),
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TP_ARGS(func, ret),
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TP_STRUCT__entry(
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/*
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* Use field_struct to avoid is_signed_type()
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* comparison of a function pointer
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*/
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__field_struct(initcall_t, func)
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__field(int, ret)
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),
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TP_fast_assign(
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__entry->func = func;
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__entry->ret = ret;
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),
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TP_printk("func=%pS ret=%d", __entry->func, __entry->ret)
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);
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#endif /* if !defined(_TRACE_GPIO_H) || defined(TRACE_HEADER_MULTI_READ) */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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