tracing: Add __print_symbolic_u64 to avoid warnings on 32bit machine

[firefly-linux-kernel-4.4.55.git] / kernel / trace / trace_output.c

diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index cf535ccedc86abe7732876860e59eb7e68686643..e37de492a9e18c7d41b629c8267ce0f78f03fff9 100644 (file)
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -353,6 +353,33 @@ ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
 }
 EXPORT_SYMBOL(ftrace_print_symbols_seq);
 
+#if BITS_PER_LONG == 32
+const char *
+ftrace_print_symbols_seq_u64(struct trace_seq *p, unsigned long long val,
+                        const struct trace_print_flags_u64 *symbol_array)
+{
+       int i;
+       const char *ret = p->buffer + p->len;
+
+       for (i = 0;  symbol_array[i].name; i++) {
+
+               if (val != symbol_array[i].mask)
+                       continue;
+
+               trace_seq_puts(p, symbol_array[i].name);
+               break;
+       }
+
+       if (!p->len)
+               trace_seq_printf(p, "0x%llx", val);
+
+       trace_seq_putc(p, 0);
+
+       return ret;
+}
+EXPORT_SYMBOL(ftrace_print_symbols_seq_u64);
+#endif
+
 const char *
 ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len)
 {