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-rw-r--r--kernel/trace/trace_syscalls.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index b706529b4fc..5c9fe08d209 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -55,20 +55,21 @@ struct ftrace_event_class event_class_syscall_exit = {
55 .raw_init = init_syscall_trace, 55 .raw_init = init_syscall_trace,
56}; 56};
57 57
58extern unsigned long __start_syscalls_metadata[]; 58extern struct syscall_metadata *__start_syscalls_metadata[];
59extern unsigned long __stop_syscalls_metadata[]; 59extern struct syscall_metadata *__stop_syscalls_metadata[];
60 60
61static struct syscall_metadata **syscalls_metadata; 61static struct syscall_metadata **syscalls_metadata;
62 62
63static struct syscall_metadata *find_syscall_meta(unsigned long syscall) 63static __init struct syscall_metadata *
64find_syscall_meta(unsigned long syscall)
64{ 65{
65 struct syscall_metadata *start; 66 struct syscall_metadata **start;
66 struct syscall_metadata *stop; 67 struct syscall_metadata **stop;
67 char str[KSYM_SYMBOL_LEN]; 68 char str[KSYM_SYMBOL_LEN];
68 69
69 70
70 start = (struct syscall_metadata *)__start_syscalls_metadata; 71 start = __start_syscalls_metadata;
71 stop = (struct syscall_metadata *)__stop_syscalls_metadata; 72 stop = __stop_syscalls_metadata;
72 kallsyms_lookup(syscall, NULL, NULL, NULL, str); 73 kallsyms_lookup(syscall, NULL, NULL, NULL, str);
73 74
74 for ( ; start < stop; start++) { 75 for ( ; start < stop; start++) {
@@ -78,8 +79,8 @@ static struct syscall_metadata *find_syscall_meta(unsigned long syscall)
78 * with "SyS" instead of "sys", leading to an unwanted 79 * with "SyS" instead of "sys", leading to an unwanted
79 * mismatch. 80 * mismatch.
80 */ 81 */
81 if (start->name && !strcmp(start->name + 3, str + 3)) 82 if ((*start)->name && !strcmp((*start)->name + 3, str + 3))
82 return start; 83 return *start;
83 } 84 }
84 return NULL; 85 return NULL;
85} 86}