tracing/ftrace: adapt mmiotrace to the new type of print_line

Adapt mmiotrace to the new print_line type.
By default, it ignores (and consumes) types it doesn't support.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Pekka Paalanen <pq@iki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index 3df441e..1a266aa 100644 (file)
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -175,7 +175,7 @@ print_out:
        return (ret == -EBUSY) ? 0 : ret;
 }
 
-static int mmio_print_rw(struct trace_iterator *iter)
+static enum print_line_t mmio_print_rw(struct trace_iterator *iter)
 {
        struct trace_entry *entry = iter->ent;
        struct trace_mmiotrace_rw *field =
@@ -215,11 +215,11 @@ static int mmio_print_rw(struct trace_iterator *iter)
                break;
        }
        if (ret)
-               return 1;
-       return 0;
+               return TRACE_TYPE_HANDLED;
+       return TRACE_TYPE_PARTIAL_LINE;
 }
 
-static int mmio_print_map(struct trace_iterator *iter)
+static enum print_line_t mmio_print_map(struct trace_iterator *iter)
 {
        struct trace_entry *entry = iter->ent;
        struct mmiotrace_map *m = (struct mmiotrace_map *)entry;
@@ -227,7 +227,7 @@ static int mmio_print_map(struct trace_iterator *iter)
        unsigned long long t    = ns2usecs(iter->ts);
        unsigned long usec_rem  = do_div(t, 1000000ULL);
        unsigned secs           = (unsigned long)t;
-       int ret = 1;
+       int ret;
 
        switch (m->opcode) {
        case MMIO_PROBE:
@@ -247,11 +247,11 @@ static int mmio_print_map(struct trace_iterator *iter)
                break;
        }
        if (ret)
-               return 1;
-       return 0;
+               return TRACE_TYPE_HANDLED;
+       return TRACE_TYPE_PARTIAL_LINE;
 }
 
-static int mmio_print_mark(struct trace_iterator *iter)
+static enum print_line_t mmio_print_mark(struct trace_iterator *iter)
 {
        struct trace_entry *entry = iter->ent;
        struct print_entry *print = (struct print_entry *)entry;
@@ -265,16 +265,15 @@ static int mmio_print_mark(struct trace_iterator *iter)
        /* The trailing newline must be in the message. */
        ret = trace_seq_printf(s, "MARK %lu.%06lu %s", secs, usec_rem, msg);
        if (!ret)
-               return 0;
+               return TRACE_TYPE_PARTIAL_LINE;
 
        if (entry->flags & TRACE_FLAG_CONT)
                trace_seq_print_cont(s, iter);
 
-       return 1;
+       return TRACE_TYPE_HANDLED;
 }
 
-/* return 0 to abort printing without consuming current entry in pipe mode */
-static int mmio_print_line(struct trace_iterator *iter)
+static enum print_line_t mmio_print_line(struct trace_iterator *iter)
 {
        switch (iter->ent->type) {
        case TRACE_MMIO_RW:
@@ -284,7 +283,7 @@ static int mmio_print_line(struct trace_iterator *iter)
        case TRACE_PRINT:
                return mmio_print_mark(iter);
        default:
-               return 1; /* ignore unknown entries */
+               return TRACE_TYPE_HANDLED; /* ignore unknown entries */
        }
 }