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powerpc64/ftrace: Use the generic version of ftrace_replace_code() 

Our implementation matches that of the generic version, which also
handles FTRACE_UPDATE_MODIFY_CALL. So, remove our implementation in
favor of the generic version.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Naveen N. Rao 2018-04-19 12:34:08 +05:30 committed by Michael Ellerman
parent 250122baed
commit 9ef4042364
1 changed files with 0 additions and 36 deletions
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36
arch/powerpc/kernel/trace/ftrace.c
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@ -485,42 +485,6 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
return ret; return ret;
} }
static int __ftrace_replace_code(struct dyn_ftrace *rec, int enable)
{
unsigned long ftrace_addr = (unsigned long)FTRACE_ADDR;
int ret;
ret = ftrace_update_record(rec, enable);
switch (ret) {
case FTRACE_UPDATE_IGNORE:
return 0;
case FTRACE_UPDATE_MAKE_CALL:
return ftrace_make_call(rec, ftrace_addr);
case FTRACE_UPDATE_MAKE_NOP:
return ftrace_make_nop(NULL, rec, ftrace_addr);
}
return 0;
}
void ftrace_replace_code(int enable)
{
struct ftrace_rec_iter *iter;
struct dyn_ftrace *rec;
int ret;
for (iter = ftrace_rec_iter_start(); iter;
iter = ftrace_rec_iter_next(iter)) {
rec = ftrace_rec_iter_record(iter);
ret = __ftrace_replace_code(rec, enable);
if (ret) {
ftrace_bug(ret, rec);
return;
}
}
}
/* /*
* Use the default ftrace_modify_all_code, but without * Use the default ftrace_modify_all_code, but without
* stop_machine(). * stop_machine().