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[23.128.96.18]) by mx.google.com with ESMTP id m19si9840418edc.561.2021.04.03.11.27.15; Sat, 03 Apr 2021 11:27:39 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=canonical.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236403AbhDCS0w (ORCPT + 99 others); Sat, 3 Apr 2021 14:26:52 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:41358 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230516AbhDCS0u (ORCPT ); Sat, 3 Apr 2021 14:26:50 -0400 Received: from [50.53.41.238] (helo=[192.168.192.153]) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1lSkyr-0000D7-SW; Sat, 03 Apr 2021 18:26:46 +0000 Subject: Re: [PATCH] apparmor: avoid -Wempty-body warning To: Arnd Bergmann , James Morris , "Serge E. Hallyn" Cc: Arnd Bergmann , linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org References: <20210322110012.1570589-1-arnd@kernel.org> From: John Johansen Autocrypt: addr=john.johansen@canonical.com; prefer-encrypt=mutual; keydata= LS0tLS1CRUdJTiBQR1AgUFVCTElDIEtFWSBCTE9DSy0tLS0tCgptUUlOQkU1bXJQb0JFQURB azE5UHNnVmdCS2tJbW1SMmlzUFE2bzdLSmhUVEtqSmR3VmJrV1NuTm4rbzZVcDVrCm5LUDFm NDlFQlFsY2VXZzF5cC9Od2JSOGFkK2VTRU8vdW1hL0srUHFXdkJwdEtDOVNXRDk3Rkc0dUI0 L2Nhb20KTEVVOTdzTFFNdG52R1dkeHJ4VlJHTTRhbnpXWU1neno1VFptSWlWVFo0M091NVZw YVMxVnoxWlN4UDNoL3hLTgpaci9UY1c1V1FhaTh1M1BXVm5ia2poU1pQSHYxQmdoTjY5cXhF UG9tckpCbTFnbXR4M1ppVm1GWGx1d1RtVGdKCk9rcEZvbDduYkowaWxuWUhyQTdTWDNDdFIx dXBlVXBNYS9XSWFuVk85NldkVGpISElhNDNmYmhtUXViZTR0eFMKM0ZjUUxPSlZxUXN4NmxF OUI3cUFwcG05aFExMHFQV3dkZlB5LyswVzZBV3ROdTVBU2lHVkNJbld6bDJIQnFZZAovWmxs OTN6VXErTklvQ244c0RBTTlpSCt3dGFHRGNKeXdJR0luK2VkS050SzcyQU1nQ2hUZy9qMVpv V0g2WmVXClBqdVVmdWJWelp0bzFGTW9HSi9TRjRNbWRRRzFpUU50ZjRzRlpiRWdYdXk5Y0dp 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<20210322110012.1570589-1-arnd@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/22/21 4:00 AM, Arnd Bergmann wrote: > From: Arnd Bergmann > > Building with 'make W=1' shows a warning for an empty macro: > > security/apparmor/label.c: In function '__label_update': > security/apparmor/label.c:2096:59: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body] > 2096 | AA_BUG(labels_ns(label) != labels_ns(new)); > > Change the macro defintion to use no_printk(), which improves > format string checking and avoids the warning. > > Signed-off-by: Arnd Bergmann Aked-by: John Johansen I have pulled it into the apparmor tree > --- > security/apparmor/include/lib.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/security/apparmor/include/lib.h b/security/apparmor/include/lib.h > index 7d27db740bc2..67fbb81a11f3 100644 > --- a/security/apparmor/include/lib.h > +++ b/security/apparmor/include/lib.h > @@ -36,7 +36,7 @@ > #define AA_BUG_FMT(X, fmt, args...) \ > WARN((X), "AppArmor WARN %s: (" #X "): " fmt, __func__, ##args) > #else > -#define AA_BUG_FMT(X, fmt, args...) > +#define AA_BUG_FMT(X, fmt, args...) no_printk(fmt, ##args) > #endif > > #define AA_ERROR(fmt, args...) \ >