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[90.8.158.167]) by smtp.gmail.com with ESMTPSA id b18sm15138014wmj.41.2020.11.02.07.20.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2020 07:20:40 -0800 (PST) From: Bartosz Golaszewski To: Andy Shevchenko , Sumit Semwal , Gustavo Padovan , =?UTF-8?q?Christian=20K=C3=B6nig?= , Mauro Carvalho Chehab , Borislav Petkov , Tony Luck , James Morse , Robert Richter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Alexander Shishkin , Linus Walleij , "Michael S . Tsirkin" , Jason Wang , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Jaroslav Kysela , Takashi Iwai Subject: [PATCH v2 0/8] slab: provide and use krealloc_array() Date: Mon, 2 Nov 2020 16:20:29 +0100 Message-Id: <20201102152037.963-1-brgl@bgdev.pl> X-Mailer: git-send-email 2.29.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Tue, 03 Nov 2020 08:45:22 +0100 Cc: alsa-devel@alsa-project.org, kvm@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-gpio@vger.kernel.org, Bartosz Golaszewski , linux-media@vger.kernel.org, linux-edac@vger.kernel.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Bartosz Golaszewski Andy brought to my attention the fact that users allocating an array of equally sized elements should check if the size multiplication doesn't overflow. This is why we have helpers like kmalloc_array(). However we don't have krealloc_array() equivalent and there are many users who do their own multiplication when calling krealloc() for arrays. This series provides krealloc_array() and uses it in a couple places. A separate series will follow adding devm_krealloc_array() which is needed in the xilinx adc driver. v1 -> v2: - added a kernel doc for krealloc_array() - mentioned krealloc et al in the docs - collected review tags Bartosz Golaszewski (8): mm: slab: provide krealloc_array() ALSA: pcm: use krealloc_array() vhost: vringh: use krealloc_array() pinctrl: use krealloc_array() edac: ghes: use krealloc_array() drm: atomic: use krealloc_array() hwtracing: intel: use krealloc_array() dma-buf: use krealloc_array() Documentation/core-api/memory-allocation.rst | 4 ++++ drivers/dma-buf/sync_file.c | 4 ++-- drivers/edac/ghes_edac.c | 4 ++-- drivers/gpu/drm/drm_atomic.c | 3 ++- drivers/hwtracing/intel_th/msu.c | 2 +- drivers/pinctrl/pinctrl-utils.c | 2 +- drivers/vhost/vringh.c | 3 ++- include/linux/slab.h | 18 ++++++++++++++++++ sound/core/pcm_lib.c | 4 ++-- 9 files changed, 34 insertions(+), 10 deletions(-) -- 2.29.1 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=-6.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT 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 2B13DC00A89 for ; Mon, 2 Nov 2020 15:20:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD01822258 for ; Mon, 2 Nov 2020 15:20:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="Qx6XIDDk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726342AbgKBPUn (ORCPT ); Mon, 2 Nov 2020 10:20:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726027AbgKBPUn (ORCPT ); Mon, 2 Nov 2020 10:20:43 -0500 Received: from mail-wm1-x343.google.com (mail-wm1-x343.google.com [IPv6:2a00:1450:4864:20::343]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4431C061A48 for ; Mon, 2 Nov 2020 07:20:42 -0800 (PST) Received: by mail-wm1-x343.google.com with SMTP id p22so9766790wmg.3 for ; Mon, 02 Nov 2020 07:20:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=87j4CzgTjIznAlAGNVYlsLolKCjEqxgXtItxHQqBT+c=; b=Qx6XIDDkn/kgktIUkUO/8COUc5pZ7Xmrd4WIhOhtRKLqRH4jXfWsq4XQF+tviij2AS vQP1d5+o7im6WeNCxad2viztsEaWhYtaJWG1Vhj6E1J8UjnspJVoxf806Ry3jv4BdHop xwURD6IJS7yc8ElYCbGBoudPzERtKy2XkZUjWqe32YJYz8gF1KzLAhJg0Sgft+3IMCWa mV4JR08o+DnkkGEu+pVGUnHdRkfznAvaeW1sFyAveCP1kOZvsLyq+TKkJLfHFzK57TIm KW7GgBKwfAnVfidT0ZnlSAScho5vr6Rjk96VIp+X50g2am696JF1i4Ih5IAkrxiZq5BJ Pdug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=87j4CzgTjIznAlAGNVYlsLolKCjEqxgXtItxHQqBT+c=; b=Q7Zhs5KL27WkUbjCLNmjglOHaqHbfnxgVjs1RZTUaOURHK+N0nt1uBhz1cyiTBFsvN oRNcTnlNm0cl6ZnZUw7vRfhLTVaZDnp4gWuLiE2IkdslrtpUpJM4pBCmZyRgPPNXgSiB mJMSY6XnB8hm/iyufAkPpRfC6x+ib6voDYNyVBbiEcTZXDxFshjrfOHM8dlxEqHdlGyW Gro+3W1RjpX8umg1O2o4YvRnxpYI+X44wNSJNvXLcKvUp7h6ddgn6/RfxwQKQ8J6GMhG CJ2/3DZvL+S6QwxXlb8wG33fbQxO3es2hwmYzawEgzHuYUF6jyB5qhkqPJaCAtSkzx0Y /TmQ== X-Gm-Message-State: AOAM531Vw5ogi7jY12NL9CK/W4yWJpbqU0uPLXD3kKNhXFoaKKyt5k/E /HgmzphAKjjpODkZ3tPctA5wCA== X-Google-Smtp-Source: ABdhPJyrNQzSj1QE+Qkm5CWvnTtBNZHgXZdYRD5QsBgAGl8HowPGK/ocdDyRBmSt205H50cLvofh/w== X-Received: by 2002:a1c:9848:: with SMTP id a69mr18051505wme.158.1604330441469; Mon, 02 Nov 2020 07:20:41 -0800 (PST) Received: from debian-brgl.home (amarseille-656-1-4-167.w90-8.abo.wanadoo.fr. [90.8.158.167]) by smtp.gmail.com with ESMTPSA id b18sm15138014wmj.41.2020.11.02.07.20.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2020 07:20:40 -0800 (PST) From: Bartosz Golaszewski To: Andy Shevchenko , Sumit Semwal , Gustavo Padovan , =?UTF-8?q?Christian=20K=C3=B6nig?= , Mauro Carvalho Chehab , Borislav Petkov , Tony Luck , James Morse , Robert Richter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Alexander Shishkin , Linus Walleij , "Michael S . Tsirkin" , Jason Wang , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Jaroslav Kysela , Takashi Iwai Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, linux-gpio@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-mm@kvack.org, alsa-devel@alsa-project.org, Bartosz Golaszewski Subject: [PATCH v2 0/8] slab: provide and use krealloc_array() Date: Mon, 2 Nov 2020 16:20:29 +0100 Message-Id: <20201102152037.963-1-brgl@bgdev.pl> X-Mailer: git-send-email 2.29.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org From: Bartosz Golaszewski Andy brought to my attention the fact that users allocating an array of equally sized elements should check if the size multiplication doesn't overflow. This is why we have helpers like kmalloc_array(). However we don't have krealloc_array() equivalent and there are many users who do their own multiplication when calling krealloc() for arrays. This series provides krealloc_array() and uses it in a couple places. A separate series will follow adding devm_krealloc_array() which is needed in the xilinx adc driver. v1 -> v2: - added a kernel doc for krealloc_array() - mentioned krealloc et al in the docs - collected review tags Bartosz Golaszewski (8): mm: slab: provide krealloc_array() ALSA: pcm: use krealloc_array() vhost: vringh: use krealloc_array() pinctrl: use krealloc_array() edac: ghes: use krealloc_array() drm: atomic: use krealloc_array() hwtracing: intel: use krealloc_array() dma-buf: use krealloc_array() Documentation/core-api/memory-allocation.rst | 4 ++++ drivers/dma-buf/sync_file.c | 4 ++-- drivers/edac/ghes_edac.c | 4 ++-- drivers/gpu/drm/drm_atomic.c | 3 ++- drivers/hwtracing/intel_th/msu.c | 2 +- drivers/pinctrl/pinctrl-utils.c | 2 +- drivers/vhost/vringh.c | 3 ++- include/linux/slab.h | 18 ++++++++++++++++++ sound/core/pcm_lib.c | 4 ++-- 9 files changed, 34 insertions(+), 10 deletions(-) -- 2.29.1 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=-6.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 431AEC388F2 for ; Tue, 3 Nov 2020 08:15:20 +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 E5042223BD for ; Tue, 3 Nov 2020 08:15:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="Qx6XIDDk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E5042223BD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AB84B6EBED; Tue, 3 Nov 2020 08:14:31 +0000 (UTC) Received: from mail-wm1-x341.google.com (mail-wm1-x341.google.com [IPv6:2a00:1450:4864:20::341]) by gabe.freedesktop.org (Postfix) with ESMTPS id 009626E51D for ; Mon, 2 Nov 2020 15:20:42 +0000 (UTC) Received: by mail-wm1-x341.google.com with SMTP id 23so1259106wmg.1 for ; Mon, 02 Nov 2020 07:20:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=87j4CzgTjIznAlAGNVYlsLolKCjEqxgXtItxHQqBT+c=; b=Qx6XIDDkn/kgktIUkUO/8COUc5pZ7Xmrd4WIhOhtRKLqRH4jXfWsq4XQF+tviij2AS vQP1d5+o7im6WeNCxad2viztsEaWhYtaJWG1Vhj6E1J8UjnspJVoxf806Ry3jv4BdHop xwURD6IJS7yc8ElYCbGBoudPzERtKy2XkZUjWqe32YJYz8gF1KzLAhJg0Sgft+3IMCWa mV4JR08o+DnkkGEu+pVGUnHdRkfznAvaeW1sFyAveCP1kOZvsLyq+TKkJLfHFzK57TIm KW7GgBKwfAnVfidT0ZnlSAScho5vr6Rjk96VIp+X50g2am696JF1i4Ih5IAkrxiZq5BJ Pdug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=87j4CzgTjIznAlAGNVYlsLolKCjEqxgXtItxHQqBT+c=; b=iDhhslVEDpffJSXQh6Zt5hKR/QudZdAGVXeumzcUyVG/xS3joBJE20SksCWx0OzUTE 35ILp6KWAB/oA5cPYTW73wg+vSi7Ucz972iK8URIIhEmtz4LcSbmwHLxii4JVssQlH8x 6g8ncs9cjx/q/jvh696zCU8d23VEf6v1bZgV6JsAQDQ0R+Ujvjco3LJkP/1cCDkX5zjn 3BHQUEqMx0fT5eat5PhA9r6C0X6Luui8+gvkchskba98ZGcxBrWy6qnpmOxdO+B2hRfe C4jGH/ZXmx8WFKSpH89A6k2tMRFTpyiFtewB2kFdm3BSS+VlCbvjz6Dl8PJTFuhEbDsi IB4Q== X-Gm-Message-State: AOAM533sZUSbuSCqqPM9GRA96CoCPNlogWNxo9DwV9iBfZ9ne71dOmo0 8IX9uknGUZGcDOVlcJibpx3E0g== X-Google-Smtp-Source: ABdhPJyrNQzSj1QE+Qkm5CWvnTtBNZHgXZdYRD5QsBgAGl8HowPGK/ocdDyRBmSt205H50cLvofh/w== X-Received: by 2002:a1c:9848:: with SMTP id a69mr18051505wme.158.1604330441469; Mon, 02 Nov 2020 07:20:41 -0800 (PST) Received: from debian-brgl.home (amarseille-656-1-4-167.w90-8.abo.wanadoo.fr. [90.8.158.167]) by smtp.gmail.com with ESMTPSA id b18sm15138014wmj.41.2020.11.02.07.20.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2020 07:20:40 -0800 (PST) From: Bartosz Golaszewski To: Andy Shevchenko , Sumit Semwal , Gustavo Padovan , =?UTF-8?q?Christian=20K=C3=B6nig?= , Mauro Carvalho Chehab , Borislav Petkov , Tony Luck , James Morse , Robert Richter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Alexander Shishkin , Linus Walleij , "Michael S . Tsirkin" , Jason Wang , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Jaroslav Kysela , Takashi Iwai Subject: [PATCH v2 0/8] slab: provide and use krealloc_array() Date: Mon, 2 Nov 2020 16:20:29 +0100 Message-Id: <20201102152037.963-1-brgl@bgdev.pl> X-Mailer: git-send-email 2.29.1 MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 03 Nov 2020 08:14:25 +0000 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: , Cc: alsa-devel@alsa-project.org, kvm@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-gpio@vger.kernel.org, Bartosz Golaszewski , linux-media@vger.kernel.org, linux-edac@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Bartosz Golaszewski Andy brought to my attention the fact that users allocating an array of equally sized elements should check if the size multiplication doesn't overflow. This is why we have helpers like kmalloc_array(). However we don't have krealloc_array() equivalent and there are many users who do their own multiplication when calling krealloc() for arrays. This series provides krealloc_array() and uses it in a couple places. A separate series will follow adding devm_krealloc_array() which is needed in the xilinx adc driver. v1 -> v2: - added a kernel doc for krealloc_array() - mentioned krealloc et al in the docs - collected review tags Bartosz Golaszewski (8): mm: slab: provide krealloc_array() ALSA: pcm: use krealloc_array() vhost: vringh: use krealloc_array() pinctrl: use krealloc_array() edac: ghes: use krealloc_array() drm: atomic: use krealloc_array() hwtracing: intel: use krealloc_array() dma-buf: use krealloc_array() Documentation/core-api/memory-allocation.rst | 4 ++++ drivers/dma-buf/sync_file.c | 4 ++-- drivers/edac/ghes_edac.c | 4 ++-- drivers/gpu/drm/drm_atomic.c | 3 ++- drivers/hwtracing/intel_th/msu.c | 2 +- drivers/pinctrl/pinctrl-utils.c | 2 +- drivers/vhost/vringh.c | 3 ++- include/linux/slab.h | 18 ++++++++++++++++++ sound/core/pcm_lib.c | 4 ++-- 9 files changed, 34 insertions(+), 10 deletions(-) -- 2.29.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel