diff options
| author |   Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-07-05 18:45:06 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-07-24 19:11:17 -0400 |
| commit | ded4a2f1ae608772dd95e819f04bbaba1f0e78b1 (patch) | |
| tree | 3185ee04226e9c3fd75bc0cc5e12ca8bb2b819b2 /net/mac80211 | |
| parent | scsi: qla2xxx: tracing: Use the new __vstring() helper (diff) | |
| download | linux-dev-ded4a2f1ae608772dd95e819f04bbaba1f0e78b1.tar.xz linux-dev-ded4a2f1ae608772dd95e819f04bbaba1f0e78b1.zip | |
mac80211: tracing: Use the new __vstring() helper
Instead of open coding a __dynamic_array() with a fixed length (which
defeats the purpose of the dynamic array in the first place). Use the new
__vstring() helper that will use a va_list and only write enough of the
string into the ring buffer that is needed.
Link: https://lkml.kernel.org/r/20220705224751.271015450@goodmis.org
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/trace_msg.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/net/mac80211/trace_msg.h b/net/mac80211/trace_msg.h index 40141df09f25..c9dbe9aab7bd 100644 --- a/net/mac80211/trace_msg.h +++ b/net/mac80211/trace_msg.h @@ -24,13 +24,11 @@ DECLARE_EVENT_CLASS(mac80211_msg_event, TP_ARGS(vaf), TP_STRUCT__entry( - __dynamic_array(char, msg, MAX_MSG_LEN) + __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign( - WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg), - MAX_MSG_LEN, vaf->fmt, - *vaf->va) >= MAX_MSG_LEN); + __assign_vstr(msg, vaf->fmt, vaf->va); ), TP_printk("%s", __get_str(msg)) |