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=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 84E57C56202 for ; Wed, 18 Nov 2020 09:40:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D63F21D7E for ; Wed, 18 Nov 2020 09:40:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="ZJyGK2XP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726821AbgKRJkD (ORCPT ); Wed, 18 Nov 2020 04:40:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50818 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726759AbgKRJkD (ORCPT ); Wed, 18 Nov 2020 04:40:03 -0500 Received: from mail-oi1-x232.google.com (mail-oi1-x232.google.com [IPv6:2607:f8b0:4864:20::232]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3AD62C061A4D for ; Wed, 18 Nov 2020 01:40:03 -0800 (PST) Received: by mail-oi1-x232.google.com with SMTP id o25so1528885oie.5 for ; Wed, 18 Nov 2020 01:40:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:references:in-reply-to:mime-version:thread-index:date :message-id:subject:to:cc; bh=xR6MYM6db8iiJw4qghcXmtpwJp4tqfTifMeaJbTfgLw=; b=ZJyGK2XPLy1SShGaOhqrgCoRRV8vEyTPAU9Gbl+3jGQBK10b28E3f02uPS02QPXC8+ ++qsowwdObzVkQ2IHaZYfCr2jZfRYkszpmj1Z8VGsv1q4mHZckA20iyDQlQ51n9JhSzS UliO7rzHSEUDWXr4RRLT7AB/uNfjYRUM3GXXo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:references:in-reply-to:mime-version :thread-index:date:message-id:subject:to:cc; bh=xR6MYM6db8iiJw4qghcXmtpwJp4tqfTifMeaJbTfgLw=; b=sYAMLF8DfNY10CV92C4mkT65D3AYahMmgGzZ9KZwSyTVBBh0cq5kTHUQTLPpfIqWwW QIFonEEzp+PZfFYwll+t4/rSYrEbfWrvcZU0527eEbKcPD9Pvu+6ZqYooZV+l6blabF1 rCxoiN+wH2wGVatFsX+5hPcG3/Hk3TLM79SOOOn0WLMTOf0y2oBV/+z7IJ3nF2NFst98 bsyFtD3h+naYgoiU1Kuo47ER1VEpZBKXvQdXkxmV053jz3a0pj7QwR5wNZJplvX9MHtU 3oV2et72CgWJx5Pm7YCzJO8eRy1eokSkbu8+AJeqqVzipJMZS5PcsHSByG8VxsNahTxv suGA== X-Gm-Message-State: AOAM530JCsfQ8tm+4L2ujiwmAuaY3SGWd10CHsbh3Z6BsrKMA8Dhp8Lg pEM4mL43rXZsfUF6F7KRBnKVAaphFCgtu9HkApy0lA== X-Google-Smtp-Source: ABdhPJybis0xhX3u3vase6uS/6eJw6v+KZwgfuY21ls3NKdAYzhNX347mZMYto+fwe8q+cixdJZ2wXjSIx6QomwlWLU= X-Received: by 2002:aca:c70b:: with SMTP id x11mr2162597oif.104.1605692401490; Wed, 18 Nov 2020 01:40:01 -0800 (PST) From: Muneendra Kumar M References: <1604895845-2587-1-git-send-email-muneendra.kumar@broadcom.com> <1604895845-2587-3-git-send-email-muneendra.kumar@broadcom.com> <1a779905-e1d2-1c3b-1825-7a406e9b5ed6@suse.de> In-Reply-To: <1a779905-e1d2-1c3b-1825-7a406e9b5ed6@suse.de> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 15.0 Thread-Index: AQEJxrNIBaGfOqPmUSl269eGsoQjLAGaToMgAmUCCrKrR5TDsA== Date: Wed, 18 Nov 2020 15:09:57 +0530 Message-ID: <20235961dc048bb4abfc4fe42d080f9a@mail.gmail.com> Subject: RE: [PATCH v4 02/19] blkcg: Added a app identifier support for blkcg To: Hannes Reinecke , linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, tj@kernel.org, linux-nvme@lists.infradead.org Cc: jsmart2021@gmail.com, emilne@redhat.com, mkumar@redhat.com, pbonzini@redhat.com Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000003a336105b45e6594" Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org --0000000000003a336105b45e6594 Content-Type: text/plain; charset="UTF-8" Hi Hannes, Thanks for the review. > + ret = -EINVAL; > + goto out_put; > + } > + strlcpy(blkcg->fc_app_id, buf, len); >String or UUID? >And will it be NULL-terminated? >Wouldn't it be better to use 'memcpy' here? >And it is NULL terminated: what happens if the user sets a 128-byte string? >IE shouldn't the app_id be 129 bytes long if it's assumed to be >NULL-terminated? [Muneendra]It is a string and it is NULL terminated. Agreed it should be 129 bytes long. Regards, Muneendra. --0000000000003a336105b45e6594 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQTQYJKoZIhvcNAQcCoIIQPjCCEDoCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg2iMIIE6DCCA9CgAwIBAgIOSBtqCRO9gCTKXSLwFPMwDQYJKoZIhvcNAQELBQAwTDEgMB4GA1UE CxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNVBAMT Ckdsb2JhbFNpZ24wHhcNMTYwNjE1MDAwMDAwWhcNMjQwNjE1MDAwMDAwWjBdMQswCQYDVQQGEwJC RTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEzMDEGA1UEAxMqR2xvYmFsU2lnbiBQZXJzb25h bFNpZ24gMiBDQSAtIFNIQTI1NiAtIEczMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA tpZok2X9LAHsYqMNVL+Ly6RDkaKar7GD8rVtb9nw6tzPFnvXGeOEA4X5xh9wjx9sScVpGR5wkTg1 fgJIXTlrGESmaqXIdPRd9YQ+Yx9xRIIIPu3Jp/bpbiZBKYDJSbr/2Xago7sb9nnfSyjTSnucUcIP ZVChn6hKneVGBI2DT9yyyD3PmCEJmEzA8Y96qT83JmVH2GaPSSbCw0C+Zj1s/zqtKUbwE5zh8uuZ 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