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=-12.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 65FCAC433E0 for ; Mon, 27 Jul 2020 13:41:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 41A792070A for ; Mon, 27 Jul 2020 13:41:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mFD/ySOZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728332AbgG0NlZ (ORCPT ); Mon, 27 Jul 2020 09:41:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726555AbgG0NlY (ORCPT ); Mon, 27 Jul 2020 09:41:24 -0400 Received: from mail-ej1-x642.google.com (mail-ej1-x642.google.com [IPv6:2a00:1450:4864:20::642]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 49DBBC0619D2; Mon, 27 Jul 2020 06:41:23 -0700 (PDT) Received: by mail-ej1-x642.google.com with SMTP id o18so17087299eje.7; Mon, 27 Jul 2020 06:41:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=reply-to:subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=WRU4i5nuotlpyXHsJ/GhJzUxBSJEh2EwvWzY/0mhtJs=; b=mFD/ySOZnh4it4pc167jVC6Z34oW7cMd8EdI/V69L+eE5UfUVpA0w/wnxhr4dXFW9z LFiExckvP8rfz/TYYUgH+E1vDKzNZsx3rCTKEWxBtycZ6+gMWOCgcjSmg7mom3w2/kwf iQF1Tsv489AjXrDW9JlBgaIs/w1rLl9JtXftS5lwWS1LvgdlXY5xQxDijG5tNDY7jakQ oPJLsDI5NnIb7jqcoZF4iEFQYrfZvu3usWajfcMIEtPYAzF74ds8cFcDFDl/tzCKAllP zDXlxyeVU/+9v45b/WDh8wjgQvKDVX2HfOGwY+4Gx6NeA389zat2buQigFyMFaW0ZVT/ 65QA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:subject:to:cc:references:from :message-id:date:user-agent:mime-version:in-reply-to :content-transfer-encoding:content-language; bh=WRU4i5nuotlpyXHsJ/GhJzUxBSJEh2EwvWzY/0mhtJs=; b=Ig75W7khuqZB0ZVKabrpSIo1ynhyozQibzI+GrVxJIj92q5hqcfmje7blXkOTuMwUz uRQXhSPvFZ/U+cMbyV64GGnlZQYQgLzAZRcpQlvqKGk3D4zr83/ahOQXEr9f2qDFRACt LEZlXk447hHMpkksLGQ5yS7XwAiMAhvatvaKBKp++icQ9i6SvwnC4Jaaf3ZH2ZY56gD0 ta1btdknJtOVVs/zhppcbxle1N2ZA5w5Qsfu9+6GRHInLgoF5XwW2myuMnFskdDXE9zQ xiEGUN3KmbBzfXH1AyTmW9NShRsoN3xbn9zRcgIZOqe7uPEddmFLvoSG9jU5qqsTnuW4 dUcw== X-Gm-Message-State: AOAM530teN2d6l9t7pol9jyGCBD+SOWrCT/zv7UEe7f3wlxqFAyFdyiT o62n87edtuk/LKNHZF+tTPQqVEHg X-Google-Smtp-Source: ABdhPJyBJhGj0hE+6xxGNbOwiNpVx+ZqZqnr6spvxdyioOzNcY9AaM+Mx08+jlrNxnYSY44/BNGa0A== X-Received: by 2002:a17:906:a88b:: with SMTP id ha11mr5428219ejb.545.1595857281845; Mon, 27 Jul 2020 06:41:21 -0700 (PDT) Received: from ?IPv6:2a02:908:1252:fb60:be8a:bd56:1f94:86e7? ([2a02:908:1252:fb60:be8a:bd56:1f94:86e7]) by smtp.gmail.com with ESMTPSA id s2sm754721ejh.95.2020.07.27.06.41.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jul 2020 06:41:21 -0700 (PDT) Reply-To: christian.koenig@amd.com Subject: Re: [PATCH 2/2] drm/radeon: avoid a useless memset To: Christophe JAILLET , alexander.deucher@amd.com, christian.koenig@amd.com, airlied@linux.ie, daniel@ffwll.ch Cc: kernel-janitors@vger.kernel.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org References: <20200727103436.50793-1-christophe.jaillet@wanadoo.fr> From: =?UTF-8?Q?Christian_K=c3=b6nig?= Message-ID: <898acaf6-9975-40b1-1104-586b64689ccd@gmail.com> Date: Mon, 27 Jul 2020 15:41:20 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200727103436.50793-1-christophe.jaillet@wanadoo.fr> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 27.07.20 um 12:34 schrieb Christophe JAILLET: > Avoid a memset after a call to 'dma_alloc_coherent()'. > This is useless since > commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*") > > Signed-off-by: Christophe JAILLET Reviewed-by: Christian König > --- > drivers/gpu/drm/radeon/radeon_gart.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c > index b7ce254e5663..3808a753127b 100644 > --- a/drivers/gpu/drm/radeon/radeon_gart.c > +++ b/drivers/gpu/drm/radeon/radeon_gart.c > @@ -85,7 +85,6 @@ int radeon_gart_table_ram_alloc(struct radeon_device *rdev) > } > #endif > rdev->gart.ptr = ptr; > - memset((void *)rdev->gart.ptr, 0, rdev->gart.table_size); > return 0; > } > From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Christian_K=c3=b6nig?= Date: Mon, 27 Jul 2020 13:41:20 +0000 Subject: Re: [PATCH 2/2] drm/radeon: avoid a useless memset Message-Id: <898acaf6-9975-40b1-1104-586b64689ccd@gmail.com> List-Id: References: <20200727103436.50793-1-christophe.jaillet@wanadoo.fr> In-Reply-To: <20200727103436.50793-1-christophe.jaillet@wanadoo.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: Christophe JAILLET , alexander.deucher@amd.com, christian.koenig@amd.com, airlied@linux.ie, daniel@ffwll.ch Cc: kernel-janitors@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Am 27.07.20 um 12:34 schrieb Christophe JAILLET: > Avoid a memset after a call to 'dma_alloc_coherent()'. > This is useless since > commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*") > > Signed-off-by: Christophe JAILLET Reviewed-by: Christian K=C3=B6nig > --- > drivers/gpu/drm/radeon/radeon_gart.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeo= n/radeon_gart.c > index b7ce254e5663..3808a753127b 100644 > --- a/drivers/gpu/drm/radeon/radeon_gart.c > +++ b/drivers/gpu/drm/radeon/radeon_gart.c > @@ -85,7 +85,6 @@ int radeon_gart_table_ram_alloc(struct radeon_device *r= dev) > } > #endif > rdev->gart.ptr =3D ptr; > - memset((void *)rdev->gart.ptr, 0, rdev->gart.table_size); > return 0; > } > =20 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=-12.1 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 0143AC433E3 for ; Mon, 27 Jul 2020 13:41:26 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CADB52070A for ; 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([2a02:908:1252:fb60:be8a:bd56:1f94:86e7]) by smtp.gmail.com with ESMTPSA id s2sm754721ejh.95.2020.07.27.06.41.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jul 2020 06:41:21 -0700 (PDT) Subject: Re: [PATCH 2/2] drm/radeon: avoid a useless memset To: Christophe JAILLET , alexander.deucher@amd.com, christian.koenig@amd.com, airlied@linux.ie, daniel@ffwll.ch References: <20200727103436.50793-1-christophe.jaillet@wanadoo.fr> From: =?UTF-8?Q?Christian_K=c3=b6nig?= Message-ID: <898acaf6-9975-40b1-1104-586b64689ccd@gmail.com> Date: Mon, 27 Jul 2020 15:41:20 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200727103436.50793-1-christophe.jaillet@wanadoo.fr> Content-Language: en-US X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: christian.koenig@amd.com Cc: kernel-janitors@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: base64 Content-Type: text/plain; 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([2a02:908:1252:fb60:be8a:bd56:1f94:86e7]) by smtp.gmail.com with ESMTPSA id s2sm754721ejh.95.2020.07.27.06.41.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jul 2020 06:41:21 -0700 (PDT) Subject: Re: [PATCH 2/2] drm/radeon: avoid a useless memset To: Christophe JAILLET , alexander.deucher@amd.com, christian.koenig@amd.com, airlied@linux.ie, daniel@ffwll.ch References: <20200727103436.50793-1-christophe.jaillet@wanadoo.fr> From: =?UTF-8?Q?Christian_K=c3=b6nig?= Message-ID: <898acaf6-9975-40b1-1104-586b64689ccd@gmail.com> Date: Mon, 27 Jul 2020 15:41:20 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200727103436.50793-1-christophe.jaillet@wanadoo.fr> Content-Language: en-US X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: christian.koenig@amd.com Cc: kernel-janitors@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" QW0gMjcuMDcuMjAgdW0gMTI6MzQgc2NocmllYiBDaHJpc3RvcGhlIEpBSUxMRVQ6Cj4gQXZvaWQg YSBtZW1zZXQgYWZ0ZXIgYSBjYWxsIHRvICdkbWFfYWxsb2NfY29oZXJlbnQoKScuCj4gVGhpcyBp cyB1c2VsZXNzIHNpbmNlCj4gY29tbWl0IDUxOGEyZjE5MjVjMyAoImRtYS1tYXBwaW5nOiB6ZXJv IG1lbW9yeSByZXR1cm5lZCBmcm9tIGRtYV9hbGxvY18qIikKPgo+IFNpZ25lZC1vZmYtYnk6IENo cmlzdG9waGUgSkFJTExFVCA8Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI+CgpSZXZpZXdl ZC1ieTogQ2hyaXN0aWFuIEvDtm5pZyA8Y2hyaXN0aWFuLmtvZW5pZ0BhbWQuY29tPgoKPiAtLS0K PiAgIGRyaXZlcnMvZ3B1L2RybS9yYWRlb24vcmFkZW9uX2dhcnQuYyB8IDEgLQo+ICAgMSBmaWxl IGNoYW5nZWQsIDEgZGVsZXRpb24oLSkKPgo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0v cmFkZW9uL3JhZGVvbl9nYXJ0LmMgYi9kcml2ZXJzL2dwdS9kcm0vcmFkZW9uL3JhZGVvbl9nYXJ0 LmMKPiBpbmRleCBiN2NlMjU0ZTU2NjMuLjM4MDhhNzUzMTI3YiAxMDA2NDQKPiAtLS0gYS9kcml2 ZXJzL2dwdS9kcm0vcmFkZW9uL3JhZGVvbl9nYXJ0LmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0v cmFkZW9uL3JhZGVvbl9nYXJ0LmMKPiBAQCAtODUsNyArODUsNiBAQCBpbnQgcmFkZW9uX2dhcnRf dGFibGVfcmFtX2FsbG9jKHN0cnVjdCByYWRlb25fZGV2aWNlICpyZGV2KQo+ICAgCX0KPiAgICNl bmRpZgo+ICAgCXJkZXYtPmdhcnQucHRyID0gcHRyOwo+IC0JbWVtc2V0KCh2b2lkICopcmRldi0+ Z2FydC5wdHIsIDAsIHJkZXYtPmdhcnQudGFibGVfc2l6ZSk7Cj4gICAJcmV0dXJuIDA7Cj4gICB9 Cj4gICAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmFt ZC1nZnggbWFpbGluZyBsaXN0CmFtZC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8v bGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vYW1kLWdmeAo=