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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3BC53C10F00 for ; Fri, 22 Feb 2019 17:53:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1250D2075C for ; Fri, 22 Feb 2019 17:53:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726423AbfBVRxa (ORCPT ); Fri, 22 Feb 2019 12:53:30 -0500 Received: from namei.org ([65.99.196.166]:53628 "EHLO namei.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726310AbfBVRxa (ORCPT ); Fri, 22 Feb 2019 12:53:30 -0500 Received: from localhost (localhost [127.0.0.1]) by namei.org (8.14.4/8.14.4) with ESMTP id x1MHr0FO014358; Fri, 22 Feb 2019 17:53:00 GMT Date: Sat, 23 Feb 2019 04:53:00 +1100 (AEDT) From: James Morris To: "Gustavo A. R. Silva" cc: Mimi Zohar , John Johansen , "Serge E. Hallyn" , Dmitry Kasatkin , Casey Schaufler , linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org, Kees Cook Subject: Re: [PATCH v2] security: mark expected switch fall-throughs and add a missing break In-Reply-To: <4be79a11-bda8-b0c5-a966-d9793e47d915@embeddedor.com> Message-ID: References: <20190208205453.GA3232@embeddedor> <1549660417.12743.18.camel@linux.ibm.com> <26221503-3755-1ee1-2265-f4e0a7e1304c@embeddedor.com> <4be79a11-bda8-b0c5-a966-d9793e47d915@embeddedor.com> User-Agent: Alpine 2.21 (LRH 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: On Fri, 22 Feb 2019, Gustavo A. R. Silva wrote: > Hi James, > > I wonder if you can take this, please. Ok -- I had thought you were sending all of these upstream across the board. > > Thanks > -- > Gustavo > > On 2/18/19 8:53 PM, Gustavo A. R. Silva wrote: > > > > > > On 2/8/19 3:13 PM, Mimi Zohar wrote: > >> On Fri, 2019-02-08 at 14:54 -0600, Gustavo A. R. Silva wrote: > >>> In preparation to enabling -Wimplicit-fallthrough, mark switch > >>> cases where we are expecting to fall through. > >>> > >>> This patch fixes the following warnings: > >>> > >>> security/integrity/ima/ima_template_lib.c:85:10: warning: this statement may fall through [-Wimplicit-fallthrough=] > >>> security/integrity/ima/ima_policy.c:940:18: warning: this statement may fall through [-Wimplicit-fallthrough=] > >>> security/integrity/ima/ima_policy.c:943:7: warning: this statement may fall through [-Wimplicit-fallthrough=] > >>> security/integrity/ima/ima_policy.c:972:21: warning: this statement may fall through [-Wimplicit-fallthrough=] > >>> security/integrity/ima/ima_policy.c:974:7: warning: this statement may fall through [-Wimplicit-fallthrough=] > >>> security/smack/smack_lsm.c:3391:9: warning: this statement may fall through [-Wimplicit-fallthrough=] > >>> security/apparmor/domain.c:569:6: warning: this statement may fall through [-Wimplicit-fallthrough=] > >>> > >>> Warning level 3 was used: -Wimplicit-fallthrough=3 > >>> > >>> Also, add a missing break statement to fix the following warning: > >>> > >>> security/integrity/ima/ima_appraise.c:116:26: warning: this statement may fall through [-Wimplicit-fallthrough=] > >>> > >>> Acked-by: John Johansen > >>> Acked-by: Casey Schaufler > >>> Signed-off-by: Gustavo A. R. Silva > >> > >> Acked-by: Mimi Zohar > >> > > > > Thanks, Mimi. > > > > -- > > Gustavo > > > >>> --- > >>> Changes in v2: > >>> - Update Subject. > >>> - Integrate a missing break in switch fix by Mimi Zohar. > >>> > >>> security/apparmor/domain.c | 2 +- > >>> security/integrity/ima/ima_appraise.c | 1 + > >>> security/integrity/ima/ima_policy.c | 4 ++++ > >>> security/integrity/ima/ima_template_lib.c | 1 + > >>> security/smack/smack_lsm.c | 3 +-- > >>> 5 files changed, 8 insertions(+), 3 deletions(-) > >>> > >>> diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c > >>> index 3b266a438776..ca2dccf5b445 100644 > >>> --- a/security/apparmor/domain.c > >>> +++ b/security/apparmor/domain.c > >>> @@ -572,7 +572,7 @@ static struct aa_label *x_to_label(struct aa_profile *profile, > >>> stack = NULL; > >>> break; > >>> } > >>> - /* fall through to X_NAME */ > >>> + /* fall through - to X_NAME */ > >>> case AA_X_NAME: > >>> if (xindex & AA_X_CHILD) > >>> /* released by caller */ > >>> diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c > >>> index a2baa85ea2f5..5fb7127bbe68 100644 > >>> --- a/security/integrity/ima/ima_appraise.c > >>> +++ b/security/integrity/ima/ima_appraise.c > >>> @@ -114,6 +114,7 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint, > >>> break; > >>> case CREDS_CHECK: > >>> iint->ima_creds_status = status; > >>> + break; > >>> case FILE_CHECK: > >>> case POST_SETATTR: > >>> iint->ima_file_status = status; > >>> diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c > >>> index 26fa9d9723f6..e0cc323f948f 100644 > >>> --- a/security/integrity/ima/ima_policy.c > >>> +++ b/security/integrity/ima/ima_policy.c > >>> @@ -936,10 +936,12 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry) > >>> case Opt_uid_gt: > >>> case Opt_euid_gt: > >>> entry->uid_op = &uid_gt; > >>> + /* fall through */ > >>> case Opt_uid_lt: > >>> case Opt_euid_lt: > >>> if ((token == Opt_uid_lt) || (token == Opt_euid_lt)) > >>> entry->uid_op = &uid_lt; > >>> + /* fall through */ > >>> case Opt_uid_eq: > >>> case Opt_euid_eq: > >>> uid_token = (token == Opt_uid_eq) || > >>> @@ -968,9 +970,11 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry) > >>> break; > >>> case Opt_fowner_gt: > >>> entry->fowner_op = &uid_gt; > >>> + /* fall through */ > >>> case Opt_fowner_lt: > >>> if (token == Opt_fowner_lt) > >>> entry->fowner_op = &uid_lt; > >>> + /* fall through */ > >>> case Opt_fowner_eq: > >>> ima_log_string_op(ab, "fowner", args[0].from, > >>> entry->fowner_op); > >>> diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c > >>> index 43752002c222..513b457ae900 100644 > >>> --- a/security/integrity/ima/ima_template_lib.c > >>> +++ b/security/integrity/ima/ima_template_lib.c > >>> @@ -83,6 +83,7 @@ static void ima_show_template_data_ascii(struct seq_file *m, > >>> /* skip ':' and '\0' */ > >>> buf_ptr += 2; > >>> buflen -= buf_ptr - field_data->data; > >>> + /* fall through */ > >>> case DATA_FMT_DIGEST: > >>> case DATA_FMT_HEX: > >>> if (!buflen) > >>> diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c > >>> index 587dc06eba33..5c1613519d5a 100644 > >>> --- a/security/smack/smack_lsm.c > >>> +++ b/security/smack/smack_lsm.c > >>> @@ -3380,13 +3380,12 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode) > >>> */ > >>> final = &smack_known_star; > >>> /* > >>> - * Fall through. > >>> - * > >>> * If a smack value has been set we want to use it, > >>> * but since tmpfs isn't giving us the opportunity > >>> * to set mount options simulate setting the > >>> * superblock default. > >>> */ > >>> + /* Fall through */ > >>> default: > >>> /* > >>> * This isn't an understood special case. > >> > -- James Morris