tracing: branch: Use trace_tracing_is_on_cpu() instead of "disabled" field

The branch tracer currently checks the per CPU "disabled" field to know if
tracing is enabled or not for the CPU. As the "disabled" value is not used
anymore to turn of tracing generically, use tracing_tracer_is_on_cpu()
instead.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/20250505212236.224658526@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index 6d08a5523ce0fd48cb7c1d3a0fb448c95ef19e2b..6809b370e991d81fab16a0b37d8d1cf18f5e5dd8 100644 (file)
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -32,7 +32,6 @@ probe_likely_condition(struct ftrace_likely_data *f, int val, int expect)
 {
        struct trace_array *tr = branch_tracer;
        struct trace_buffer *buffer;
-       struct trace_array_cpu *data;
        struct ring_buffer_event *event;
        struct trace_branch *entry;
        unsigned long flags;
@@ -54,8 +53,7 @@ probe_likely_condition(struct ftrace_likely_data *f, int val, int expect)
 
        raw_local_irq_save(flags);
        current->trace_recursion |= TRACE_BRANCH_BIT;
-       data = this_cpu_ptr(tr->array_buffer.data);
-       if (atomic_read(&data->disabled))
+       if (!tracer_tracing_is_on_cpu(tr, raw_smp_processor_id()))
                goto out;
 
        trace_ctx = tracing_gen_ctx_flags(flags);