tracing: Fix function-graph build warning on 32-bit

Fix

kernel/trace/trace_functions_graph.c: In function ‘trace_print_graph_duration’:
kernel/trace/trace_functions_graph.c:652: warning: comparison of distinct pointer types lacks a cast

when building 36-rc6 on a 32-bit due to the strict type check failing
in the min() macro.

Signed-off-by: Borislav Petkov <bp@alien8.de>
Cc: Chase Douglas <chase.douglas@canonical.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20100929080823.GA13595@liondog.tnic>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 02c708a..ef49e93 100644 (file)
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -665,8 +665,9 @@ trace_print_graph_duration(unsigned long long duration, struct trace_seq *s)
 
        /* Print nsecs (we don't want to exceed 7 numbers) */
        if (len < 7) {
-               snprintf(nsecs_str, min(sizeof(nsecs_str), 8UL - len), "%03lu",
-                        nsecs_rem);
+               size_t slen = min_t(size_t, sizeof(nsecs_str), 8UL - len);
+
+               snprintf(nsecs_str, slen, "%03lu", nsecs_rem);
                ret = trace_seq_printf(s, ".%s", nsecs_str);
                if (!ret)
                        return TRACE_TYPE_PARTIAL_LINE;