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| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-07-05 18:44:58 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-07-15 17:44:40 -0400 |
| commit | c7c37bb87590886e08d24dec53089f74b89f5fbb (patch) | |
| tree | 4c129f2d650b8e349afb6ce324263b13dedc80e7 /drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h | |
| parent | b6d18ab34220565177d1f2efb84ff40abb195457 (diff) | |
| download | linux-stable-c7c37bb87590886e08d24dec53089f74b89f5fbb.tar.gz linux-stable-c7c37bb87590886e08d24dec53089f74b89f5fbb.tar.bz2 linux-stable-c7c37bb87590886e08d24dec53089f74b89f5fbb.zip | |
tracing/iwlwifi: 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/20220705224749.806599472@goodmis.org
Cc: Gregory Greenman <gregory.greenman@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
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
Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-devtrace-msg.h | 12 |
1 files changed, 4 insertions, 8 deletions
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)) ); |