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-rw-r--r--arch/x86/kernel/ftrace.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 8e9663413b7f..afb31d72618d 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -500,6 +500,22 @@ struct syscall_metadata *syscall_nr_to_meta(int nr)
500 return syscalls_metadata[nr]; 500 return syscalls_metadata[nr];
501} 501}
502 502
503int syscall_name_to_nr(char *name)
504{
505 int i;
506
507 if (!syscalls_metadata)
508 return -1;
509
510 for (i = 0; i < FTRACE_SYSCALL_MAX; i++) {
511 if (syscalls_metadata[i]) {
512 if (!strcmp(syscalls_metadata[i]->name, name))
513 return i;
514 }
515 }
516 return -1;
517}
518
503void arch_init_ftrace_syscalls(void) 519void arch_init_ftrace_syscalls(void)
504{ 520{
505 int i; 521 int i;