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| author | Steven Rostedt <srostedt@redhat.com> | 2008-11-21 14:44:57 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-23 11:46:49 +0100 |
| commit | 0429149fb5e01edc410648591c19095d2074ee00 (patch) | |
| tree | d16c0e5b19f1d1409bc653ea12ba17938774ec64 /kernel/trace/trace_branch.c | |
| parent | 2bcd521a684cc94befbe2ce7d5b613c841b0d304 (diff) | |
| download | linux-0429149fb5e01edc410648591c19095d2074ee00.tar.gz linux-0429149fb5e01edc410648591c19095d2074ee00.tar.bz2 linux-0429149fb5e01edc410648591c19095d2074ee00.zip | |
trace: fix compiler warning in branch profiler
Impact: fix compiler warning
The ftrace_pointers used in the branch profiler are constant values.
They should never change. But the compiler complains when they are
passed into the debugfs_create_file as a data pointer, because the
function discards the qualifier.
This patch typecasts the parameter to debugfs_create_file back to
a void pointer. To remind the callbacks that they are pointing to
a constant value, I also modified the callback local pointers to
be const struct ftrace_pointer * as well.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_branch.c')
| -rw-r--r-- | kernel/trace/trace_branch.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c index 85792aec64d2..877ee88e6a74 100644 --- a/kernel/trace/trace_branch.c +++ b/kernel/trace/trace_branch.c @@ -191,7 +191,7 @@ struct ftrace_pointer { static void * t_next(struct seq_file *m, void *v, loff_t *pos) { - struct ftrace_pointer *f = m->private; + const struct ftrace_pointer *f = m->private; struct ftrace_branch_data *p = v; (*pos)++; @@ -224,7 +224,7 @@ static void t_stop(struct seq_file *m, void *p) static int t_show(struct seq_file *m, void *v) { - struct ftrace_pointer *fp = m->private; + const struct ftrace_pointer *fp = m->private; struct ftrace_branch_data *p = v; const char *f; long percent; @@ -296,7 +296,7 @@ static const struct file_operations tracing_branch_fops = { extern unsigned long __start_branch_profile[]; extern unsigned long __stop_branch_profile[]; -static struct ftrace_pointer ftrace_branch_pos = { +static const struct ftrace_pointer ftrace_branch_pos = { .start = __start_branch_profile, .stop = __stop_branch_profile, .hit = 1, @@ -320,7 +320,7 @@ static __init int ftrace_branch_init(void) d_tracer = tracing_init_dentry(); entry = debugfs_create_file("profile_annotated_branch", 0444, d_tracer, - &ftrace_annotated_branch_pos, + (void *)&ftrace_annotated_branch_pos, &tracing_branch_fops); if (!entry) pr_warning("Could not create debugfs " @@ -328,7 +328,7 @@ static __init int ftrace_branch_init(void) #ifdef CONFIG_PROFILE_ALL_BRANCHES entry = debugfs_create_file("profile_branch", 0444, d_tracer, - &ftrace_branch_pos, + (void *)&ftrace_branch_pos, &tracing_branch_fops); if (!entry) pr_warning("Could not create debugfs" |