| Message ID | 20220705224749.806599472@goodmis.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Gregory Greenman |
| Headers | show |
| Series | None | expand |
Steven Rostedt <rostedt@goodmis.org> writes: > From: "Steven Rostedt (Google)" <rostedt@goodmis.org> > > 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. > > Cc: Gregory Greenman <gregory.greenman@intel.com> > Cc: Kalle Valo <kvalo@kernel.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> > --- > .../net/wireless/intel/iwlwifi/iwl-devtrace-msg.h | 12 ++++-------- > 1 file changed, 4 insertions(+), 8 deletions(-) Feel free to take this via your tree: Acked-by: Kalle Valo <kvalo@kernel.org>
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h index 7dd70011fd1e..1d6c292cf545 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h @@ -18,12 +18,10 @@ DECLARE_EVENT_CLASS(iwlwifi_msg_event, TP_PROTO(struct va_format *vaf), 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)) ); @@ -55,14 +53,12 @@ TRACE_EVENT(iwlwifi_dbg, TP_STRUCT__entry( __field(u32, level) __string(function, function) - __dynamic_array(char, msg, MAX_MSG_LEN) + __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign( __entry->level = level; __assign_str(function, function); - 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)) );