From nobody Mon Apr 6 13:28:24 2026 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 56EE3C433F5 for ; Thu, 29 Sep 2022 22:56:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230196AbiI2W4I (ORCPT ); Thu, 29 Sep 2022 18:56:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229923AbiI2Wzb (ORCPT ); Thu, 29 Sep 2022 18:55:31 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A3C6D2D6A for ; Thu, 29 Sep 2022 15:55:28 -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 ams.source.kernel.org (Postfix) with ESMTPS id B5BBAB82593 for ; Thu, 29 Sep 2022 22:55:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 89ED7C433D6; Thu, 29 Sep 2022 22:55:25 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.96) (envelope-from ) id 1oe2SN-000cqV-19; Thu, 29 Sep 2022 18:56:39 -0400 Message-ID: <20220929225638.903022694@goodmis.org> User-Agent: quilt/0.66 Date: Thu, 29 Sep 2022 18:55:52 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Beau Belgrave Subject: [for-next][PATCH 10/15] tracing/user_events: Use NULL for strstr checks References: <20220929225542.784716766@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Beau Belgrave Trivial fix to ensure strstr checks use NULL instead of 0. Link: https://lkml.kernel.org/r/20220728233309.1896-2-beaub@linux.microsoft= .com Signed-off-by: Beau Belgrave Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace_events_user.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_u= ser.c index a6621c52ce45..075d694d20e3 100644 --- a/kernel/trace/trace_events_user.c +++ b/kernel/trace/trace_events_user.c @@ -277,7 +277,7 @@ static int user_event_add_field(struct user_event *user= , const char *type, goto add_field; =20 add_validator: - if (strstr(type, "char") !=3D 0) + if (strstr(type, "char") !=3D NULL) validator_flags |=3D VALIDATOR_ENSURE_NULL; =20 validator =3D kmalloc(sizeof(*validator), GFP_KERNEL); @@ -458,7 +458,7 @@ static const char *user_field_format(const char *type) return "%d"; if (strcmp(type, "unsigned char") =3D=3D 0) return "%u"; - if (strstr(type, "char[") !=3D 0) + if (strstr(type, "char[") !=3D NULL) return "%s"; =20 /* Unknown, likely struct, allowed treat as 64-bit */ @@ -479,7 +479,7 @@ static bool user_field_is_dyn_string(const char *type, = const char **str_func) =20 return false; check: - return strstr(type, "char") !=3D 0; + return strstr(type, "char") !=3D NULL; } =20 #define LEN_OR_ZERO (len ? len - pos : 0) --=20 2.35.1