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From: kbuild test robot <lkp@intel.com>
To: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: kbuild-all@01.org, rostedt@goodmis.org, mingo@redhat.com,
	linux-kernel@vger.kernel.org, arnd@arndb.de,
	y2038@lists.linaro.org
Subject: Re: [PATCH] trace: Make trace_hwlat timestamp y2038 safe
Date: Mon, 27 Mar 2017 17:25:56 +0800	[thread overview]
Message-ID: <201703271742.Qr4K4S8u%fengguang.wu@intel.com> (raw)
In-Reply-To: <1490561829-15618-1-git-send-email-deepa.kernel@gmail.com>

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Hi Deepa,

[auto build test WARNING on tip/perf/core]
[also build test WARNING on v4.11-rc4 next-20170327]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Deepa-Dinamani/trace-Make-trace_hwlat-timestamp-y2038-safe/20170327-150010
config: x86_64-randconfig-n0-03271517 (attached as .config)
compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   kernel/trace/trace_output.c: In function 'trace_hwlat_print':
>> kernel/trace/trace_output.c:1168:5: warning: format '%lld' expects argument of type 'long long int', but argument 6 has type '__kernel_time_t' [-Wformat=]
        field->timestamp.tv_nsec);
        ^
   kernel/trace/trace_output.c: In function 'trace_hwlat_raw':
   kernel/trace/trace_output.c:1202:5: warning: format '%lld' expects argument of type 'long long int', but argument 5 has type '__kernel_time_t' [-Wformat=]
        field->seqnum);
        ^
   Cyclomatic Complexity 5 include/linux/compiler.h:__read_once_size
   Cyclomatic Complexity 5 include/linux/compiler.h:__write_once_size
   Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:__ffs
   Cyclomatic Complexity 1 include/linux/list.h:INIT_LIST_HEAD
   Cyclomatic Complexity 2 include/linux/list.h:__list_add
   Cyclomatic Complexity 1 include/linux/list.h:list_add_tail
   Cyclomatic Complexity 1 include/linux/list.h:__list_del
   Cyclomatic Complexity 2 include/linux/list.h:__list_del_entry
   Cyclomatic Complexity 1 include/linux/list.h:list_del
   Cyclomatic Complexity 1 include/linux/list.h:list_empty
   Cyclomatic Complexity 2 include/linux/list.h:__hlist_del
   Cyclomatic Complexity 1 include/linux/list.h:hlist_del
   Cyclomatic Complexity 2 include/linux/list.h:hlist_add_head
   Cyclomatic Complexity 1 include/linux/rcupdate.h:rcu_lock_acquire
   Cyclomatic Complexity 1 include/linux/rcupdate.h:rcu_lock_release
   Cyclomatic Complexity 4 include/linux/rcupdate.h:rcu_read_lock
   Cyclomatic Complexity 4 include/linux/rcupdate.h:rcu_read_unlock
   Cyclomatic Complexity 1 include/linux/seq_buf.h:seq_buf_clear
   Cyclomatic Complexity 1 include/linux/seq_buf.h:seq_buf_init
   Cyclomatic Complexity 1 include/linux/seq_buf.h:seq_buf_has_overflowed
   Cyclomatic Complexity 1 include/linux/seq_buf.h:seq_buf_used
   Cyclomatic Complexity 1 include/linux/trace_seq.h:trace_seq_init
   Cyclomatic Complexity 1 include/linux/trace_seq.h:trace_seq_buffer_ptr
   Cyclomatic Complexity 3 include/linux/trace_seq.h:trace_seq_has_overflowed
   Cyclomatic Complexity 2 include/linux/trace_events.h:trace_handle_return
   Cyclomatic Complexity 3 include/linux/trace_events.h:trace_event_name
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:kretprobed
   Cyclomatic Complexity 3 kernel/trace/trace_output.c:task_state_char
   Cyclomatic Complexity 5 kernel/trace/trace_output.c:trace_search_list
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_nop_print
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_hwlat_raw
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_print_raw
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_bprint_raw
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_bputs_raw
   Cyclomatic Complexity 3 kernel/trace/trace_output.c:trace_ctxwake_raw
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_wake_raw
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_ctx_raw
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_fn_raw
   Cyclomatic Complexity 3 kernel/trace/trace_output.c:trace_raw_data
   Cyclomatic Complexity 3 kernel/trace/trace_output.c:trace_hwlat_print
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_output_raw
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:seq_print_sym_offset
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:seq_print_sym_short
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_ctxwake_print
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_wake_print
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_ctx_print
   Cyclomatic Complexity 9 kernel/trace/trace_output.c:seq_print_user_ip
   Cyclomatic Complexity 9 kernel/trace/trace_output.c:trace_user_stack_print
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_ctxwake_bin
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_fn_bin
   Cyclomatic Complexity 3 kernel/trace/trace_output.c:trace_ctxwake_hex
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_wake_hex
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_ctx_hex
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_fn_hex
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_print_bputs_msg_only
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_print_bprintk_msg_only
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_print_printk_msg_only
   Cyclomatic Complexity 7 kernel/trace/trace_output.c:trace_print_flags_seq
   Cyclomatic Complexity 4 kernel/trace/trace_output.c:trace_print_symbols_seq
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_print_bitmask_seq
   Cyclomatic Complexity 3 kernel/trace/trace_output.c:trace_print_hex_seq
   Cyclomatic Complexity 6 kernel/trace/trace_output.c:trace_print_array_seq
   Cyclomatic Complexity 5 kernel/trace/trace_output.c:trace_raw_output_prep
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_output_call
   Cyclomatic Complexity 4 kernel/trace/trace_output.c:seq_print_ip_sym
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_print_print
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_bprint_print
   Cyclomatic Complexity 2 kernel/trace/trace_output.c:trace_bputs_print
   Cyclomatic Complexity 6 kernel/trace/trace_output.c:trace_stack_print
   Cyclomatic Complexity 4 kernel/trace/trace_output.c:trace_fn_trace
   Cyclomatic Complexity 12 kernel/trace/trace_output.c:trace_print_lat_fmt
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:lat_print_generic
   Cyclomatic Complexity 4 kernel/trace/trace_output.c:trace_find_mark
   Cyclomatic Complexity 5 kernel/trace/trace_output.c:lat_print_timestamp
   Cyclomatic Complexity 3 kernel/trace/trace_output.c:trace_print_context
   Cyclomatic Complexity 3 kernel/trace/trace_output.c:trace_print_lat_context
   Cyclomatic Complexity 5 kernel/trace/trace_output.c:ftrace_find_event
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_event_read_lock
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:trace_event_read_unlock
   Cyclomatic Complexity 17 kernel/trace/trace_output.c:register_trace_event
   Cyclomatic Complexity 6 kernel/trace/trace_output.c:init_events
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:__unregister_trace_event
   Cyclomatic Complexity 1 kernel/trace/trace_output.c:unregister_trace_event

vim +1168 kernel/trace/trace_output.c

e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1152) /* TRACE_HWLAT */
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1153) static enum print_line_t
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1154) trace_hwlat_print(struct trace_iterator *iter, int flags,
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1155) 		  struct trace_event *event)
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1156) {
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1157) 	struct trace_entry *entry = iter->ent;
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1158) 	struct trace_seq *s = &iter->seq;
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1159) 	struct hwlat_entry *field;
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1160) 
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1161) 	trace_assign_type(field, entry);
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1162) 
df001907 Deepa Dinamani           2017-03-26  1163  	trace_seq_printf(s, "#%-5u inner/outer(us): %4llu/%-5llu ts:%lld.%09ld",
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1164) 			 field->seqnum,
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1165) 			 field->duration,
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1166) 			 field->outer_duration,
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1167) 			 field->timestamp.tv_sec,
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23 @1168) 			 field->timestamp.tv_nsec);
e7c15cd8 Steven Rostedt (Red Hat  2016-06-23  1169) 
7b2c8625 Steven Rostedt (Red Hat  2016-08-04  1170) 	if (field->nmi_count) {
7b2c8625 Steven Rostedt (Red Hat  2016-08-04  1171) 		/*
7b2c8625 Steven Rostedt (Red Hat  2016-08-04  1172) 		 * The generic sched_clock() is not NMI safe, thus
7b2c8625 Steven Rostedt (Red Hat  2016-08-04  1173) 		 * we only record the count and not the time.
7b2c8625 Steven Rostedt (Red Hat  2016-08-04  1174) 		 */
7b2c8625 Steven Rostedt (Red Hat  2016-08-04  1175) 		if (!IS_ENABLED(CONFIG_GENERIC_SCHED_CLOCK))
7b2c8625 Steven Rostedt (Red Hat  2016-08-04  1176) 			trace_seq_printf(s, " nmi-total:%llu",

:::::: The code at line 1168 was first introduced by commit
:::::: e7c15cd8a113335cf7154f027c9c8da1a92238ee tracing: Added hardware latency tracer

:::::: TO: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
:::::: CC: Steven Rostedt <rostedt@goodmis.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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  reply	other threads:[~2017-03-27  9:28 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-26 20:57 [PATCH] trace: Make trace_hwlat timestamp y2038 safe Deepa Dinamani
2017-03-27  9:25 ` kbuild test robot [this message]
2017-03-27  9:55   ` Arnd Bergmann
2017-03-27 14:28     ` Steven Rostedt
2017-03-27 14:53       ` Arnd Bergmann
2017-03-27 15:30         ` Steven Rostedt
2017-03-27 15:35           ` Arnd Bergmann
2017-03-27 16:11             ` Steven Rostedt
2017-03-27 21:02         ` Deepa Dinamani
2017-03-28  7:26           ` Arnd Bergmann
2017-03-27 10:04 ` kbuild test robot
  -- strict thread matches above, loose matches on Subject: below --
2017-03-16 13:56 [PATCH] acpi: fix incompatibility with mcount-based function graph tracing Josh Poimboeuf
2017-03-16 14:41 ` Steven Rostedt
2017-03-21 20:44 ` Paul Menzel
2017-03-22  0:04   ` Paul Menzel
2017-03-24 18:12   ` Josh Poimboeuf
2017-03-24 18:41     ` Steven Rostedt
2017-03-25 13:20       ` Rafael J. Wysocki
2017-03-27 14:08         ` Josh Poimboeuf
2017-03-27 14:54           ` [PATCH] ftrace/x86: fix x86-32 triple fault with graph tracing and suspend-to-ram Josh Poimboeuf
2017-03-27 15:01             ` Paul Menzel
2017-03-27 15:20               ` [PATCH v2] " Josh Poimboeuf
2017-03-27 15:24               ` [PATCH] " Steven Rostedt
2017-03-28  9:51               ` Paul Menzel
2017-03-28 15:39                 ` Steven Rostedt
2017-03-28 15:55                   ` Josh Poimboeuf
2017-03-28 21:12                     ` Rafael J. Wysocki
2017-03-28 21:42                       ` Josh Poimboeuf
2017-03-28 21:47                         ` Rafael J. Wysocki
2017-03-27 16:59           ` [PATCH] acpi: fix incompatibility with mcount-based function graph tracing Rafael J. Wysocki

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