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Diffstat (limited to 'arch/s390/kernel/ftrace.c')
-rw-r--r--arch/s390/kernel/ftrace.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 6c79f1b44fe7..e0eaf11134b4 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -130,8 +130,7 @@ int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec,
/* Verify that the to be replaced code matches what we expect. */
if (memcmp(&orig, &old, sizeof(old)))
return -EINVAL;
- if (probe_kernel_write((void *) rec->ip, &new, sizeof(new)))
- return -EPERM;
+ s390_kernel_write((void *) rec->ip, &new, sizeof(new));
return 0;
}
@@ -159,8 +158,7 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
/* Verify that the to be replaced code matches what we expect. */
if (memcmp(&orig, &old, sizeof(old)))
return -EINVAL;
- if (probe_kernel_write((void *) rec->ip, &new, sizeof(new)))
- return -EPERM;
+ s390_kernel_write((void *) rec->ip, &new, sizeof(new));
return 0;
}
@@ -231,14 +229,16 @@ int ftrace_enable_ftrace_graph_caller(void)
{
u8 op = 0x04; /* set mask field to zero */
- return probe_kernel_write(__va(ftrace_graph_caller)+1, &op, sizeof(op));
+ s390_kernel_write(__va(ftrace_graph_caller)+1, &op, sizeof(op));
+ return 0;
}
int ftrace_disable_ftrace_graph_caller(void)
{
u8 op = 0xf4; /* set mask field to all ones */
- return probe_kernel_write(__va(ftrace_graph_caller)+1, &op, sizeof(op));
+ s390_kernel_write(__va(ftrace_graph_caller)+1, &op, sizeof(op));
+ return 0;
}
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */