Eric Lee / smarc-fsl-linux-kernel

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Commit 7f85803a26f304e698c673838aab06cc6d4d6e59

Authored by Lai Jiangshan
Committed by Steven Rostedt
1 parent c94fbe1d9e
Exists in master and in 39 other branches 8mp-imx_5.4.70_2.3.0, 8qm-imx_5.4.70_2.3.0, emb_imx_lf-5.15.y, emb_lf-6.1.y, imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, imx_4.1.15_1.0.0_ga, pitx_8mp_lf-5.10.y, rt-smarc-imx_4.1.15_1.0.0_ga, rt_linux_5.15.71, smarc-8m-android-11.0.0_2.0.0, smarc-imx6_4.14.98_2.0.0_ga, smarc-imx6_4.9.88_2.0.0_ga, smarc-imx7_4.14.98_2.0.0_ga, smarc-imx7_4.9.11_1.0.0_ga, smarc-imx7_4.9.88_2.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-imx_4.1.15_1.0.0_ga, smarc-imx_4.9.11_1.0.0_ga, smarc-imx_4.9.51_imx8m_ga, smarc-imx_4.9.88_2.0.0_ga, smarc-m6.0.1_2.1.0-ga, smarc-n7.1.2_2.0.0-ga, smarc-rel_imx_4.1.15_1.2.0_ga, smarc_8m_00d0_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.14.78_1.0.0_ga, smarc_8m_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.19.35_1.1.0, smarc_8mm_imx_4.14.78_1.0.0_ga, smarc_8mm_imx_4.14.98_2.0.0_ga, smarc_8mm_imx_4.19.35_1.1.0, smarc_8mm_imx_5.4.24_2.1.0, smarc_8mp_lf-5.10.y, smarc_8mq_imx_5.4.24_2.1.0, smarc_8mq_lf-5.10.y, smarc_imx_lf-5.15.y

tracing: Remove syscall_exit_fields 

There is no need for syscall_exit_fields as the syscall
exit event class can already host the fields in its structure,
like most other trace events do by default. Use that
default behavior instead.

Following this scheme, we don't need anymore to override the
get_fields() callback of the syscall exit event class either.

Hence both syscall_exit_fields and syscall_get_exit_fields() can
be removed.

Also changed some indentation to keep the following under 80
characters:

".fields		= LIST_HEAD_INIT(event_class_syscall_exit.fields),"

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <4D301C0E.8090408@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

Showing 1 changed file with 12 additions and 21 deletions Side-by-side Diff

kernel/trace/trace_syscalls.c
Diff comments   View file @ 7f85803
... ... @@ -23,9 +23,6 @@
23 23 static int syscall_enter_define_fields(struct ftrace_event_call *call);
24 24 static int syscall_exit_define_fields(struct ftrace_event_call *call);
25 25  
26   -/* All syscall exit events have the same fields */
27   -static LIST_HEAD(syscall_exit_fields);
28   -
29 26 static struct list_head *
30 27 syscall_get_enter_fields(struct ftrace_event_call *call)
31 28 {
32 29  
33 30  
34 31  
35 32  
... ... @@ -34,34 +31,28 @@
34 31 return &entry->enter_fields;
35 32 }
36 33  
37   -static struct list_head *
38   -syscall_get_exit_fields(struct ftrace_event_call *call)
39   -{
40   - return &syscall_exit_fields;
41   -}
42   -
43 34 struct trace_event_functions enter_syscall_print_funcs = {
44   - .trace = print_syscall_enter,
  35 + .trace = print_syscall_enter,
45 36 };
46 37  
47 38 struct trace_event_functions exit_syscall_print_funcs = {
48   - .trace = print_syscall_exit,
  39 + .trace = print_syscall_exit,
49 40 };
50 41  
51 42 struct ftrace_event_class event_class_syscall_enter = {
52   - .system = "syscalls",
53   - .reg = syscall_enter_register,
54   - .define_fields = syscall_enter_define_fields,
55   - .get_fields = syscall_get_enter_fields,
56   - .raw_init = init_syscall_trace,
  43 + .system = "syscalls",
  44 + .reg = syscall_enter_register,
  45 + .define_fields = syscall_enter_define_fields,
  46 + .get_fields = syscall_get_enter_fields,
  47 + .raw_init = init_syscall_trace,
57 48 };
58 49  
59 50 struct ftrace_event_class event_class_syscall_exit = {
60   - .system = "syscalls",
61   - .reg = syscall_exit_register,
62   - .define_fields = syscall_exit_define_fields,
63   - .get_fields = syscall_get_exit_fields,
64   - .raw_init = init_syscall_trace,
  51 + .system = "syscalls",
  52 + .reg = syscall_exit_register,
  53 + .define_fields = syscall_exit_define_fields,
  54 + .fields = LIST_HEAD_INIT(event_class_syscall_exit.fields),
  55 + .raw_init = init_syscall_trace,
65 56 };
66 57  
67 58 extern unsigned long __start_syscalls_metadata[];