From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E1F45C43334 for ; Tue, 5 Jul 2022 22:48:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233141AbiGEWsu (ORCPT ); Tue, 5 Jul 2022 18:48:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43874 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232876AbiGEWsK (ORCPT ); Tue, 5 Jul 2022 18:48:10 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A2841BE8F for ; Tue, 5 Jul 2022 15:47:53 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A91D861D55 for ; Tue, 5 Jul 2022 22:47:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2C37C341E8; Tue, 5 Jul 2022 22:47:51 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.95) (envelope-from ) id 1o8rKg-001yM2-SN; Tue, 05 Jul 2022 18:47:50 -0400 Message-ID: <20220705224750.715763972@goodmis.org> User-Agent: quilt/0.66 Date: Tue, 05 Jul 2022 18:45:03 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Fred Herard , "Martin K. Petersen" Subject: [PATCH 10/13] scsi: iscsi: tracing: Use the new __vstring() helper References: <20220705224453.120955146@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Steven Rostedt (Google)" 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: Fred Herard Cc: Martin K. Petersen Signed-off-by: Steven Rostedt (Google) --- include/trace/events/iscsi.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/trace/events/iscsi.h b/include/trace/events/iscsi.h index 87408faf6e4e..8ff2a3ca5d75 100644 --- a/include/trace/events/iscsi.h +++ b/include/trace/events/iscsi.h @@ -26,12 +26,12 @@ DECLARE_EVENT_CLASS(iscsi_log_msg, TP_STRUCT__entry( __string(dname, dev_name(dev) ) - __dynamic_array(char, msg, ISCSI_MSG_MAX ) + __vstring(msg, vaf->fmt, vaf->va) ), TP_fast_assign( __assign_str(dname, dev_name(dev)); - vsnprintf(__get_str(msg), ISCSI_MSG_MAX, vaf->fmt, *vaf->va); + __assign_vstr(msg, vaf->fmt, vaf->va); ), TP_printk("%s: %s",__get_str(dname), __get_str(msg) -- 2.35.1