]> git.baikalelectronics.ru Git - kernel.git/commitdiff
powerpc64/ftrace: Use the generic version of ftrace_replace_code()
authorNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Thu, 19 Apr 2018 07:04:08 +0000 (12:34 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 3 May 2018 12:32:28 +0000 (22:32 +1000)
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>
arch/powerpc/kernel/trace/ftrace.c

index 4741fe112f05f8c67f8d6447918a91926144d1aa..80667128db3d2f5a7bd8229ea7be844ebce54ecb 100644 (file)
@@ -485,42 +485,6 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
        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
  * stop_machine().