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authorDavid Howells <dhowells@redhat.com>2022-12-05 10:21:52 +0000
committerSteven Rostedt (Google) <rostedt@goodmis.org>2022-12-10 13:36:05 -0500
commitbfd5a5e82d22da43afa0e2bb9fb72339aa79c6cc (patch)
treeb4bbc78429c8f1f6ae1236351a0cf31d726cc010 /kernel/trace
parentec370890f92ba8ad5476a34068655b06ba48def7 (diff)
downloadlinux-bfd5a5e82d22da43afa0e2bb9fb72339aa79c6cc.tar.bz2
tracing: Fix some checker warnings
Fix some checker warnings in the trace code by adding __printf attributes to a number of trace functions and their declarations. Changes: ======== ver #2) - Dropped the fix for the unconditional tracing_max_lat_fops decl[1]. Link: https://lore.kernel.org/r/20221205180617.9b9d3971cbe06ee536603523@kernel.org/ [1] Link: https://lore.kernel.org/r/166992525941.1716618.13740663757583361463.stgit@warthog.procyon.org.uk/ # v1 Link: https://lkml.kernel.org/r/167023571258.382307.15314866482834835192.stgit@warthog.procyon.org.uk Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace.h2
-rw-r--r--kernel/trace/trace_output.c5
2 files changed, 4 insertions, 3 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 9dc920b01c17..e46a49269be2 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -614,7 +614,7 @@ void trace_buffer_unlock_commit_nostack(struct trace_buffer *buffer,
bool trace_is_tracepoint_string(const char *str);
const char *trace_event_format(struct trace_iterator *iter, const char *fmt);
void trace_check_vprintf(struct trace_iterator *iter, const char *fmt,
- va_list ap);
+ va_list ap) __printf(2, 0);
int trace_empty(struct trace_iterator *iter);
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index f0ba97121345..57a13b61f186 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -322,8 +322,9 @@ void trace_event_printf(struct trace_iterator *iter, const char *fmt, ...)
}
EXPORT_SYMBOL(trace_event_printf);
-static int trace_output_raw(struct trace_iterator *iter, char *name,
- char *fmt, va_list ap)
+static __printf(3, 0)
+int trace_output_raw(struct trace_iterator *iter, char *name,
+ char *fmt, va_list ap)
{
struct trace_seq *s = &iter->seq;