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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7FA00C71136 for ; Wed, 11 Jun 2025 23:55:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XlnZuUqEMiDPyoPu1uidt8DikGLHmN/8IAgm5AlJwiI=; b=lkTr3K4fbp//QfVerA+8fhB+Er PW2YcCH9GU4NlWQZTK2+52I//EdinM8HXSaqCgvn/99CyjkN1/tqoTBRbjNu15gDfwNpCX4aviEHl bDcjZkxH8ny2uVROBI4RsVAu1T7QGcMXwnChbXg/L9+7Cy/L/Y9yLZwqRBYAsc1DOM6KsOxfsyGwW 6tB+d8A7CfmUNy7gaifAEsVWKUa9zpggysMkph8wsuMZB5O2IX9G/dlP4nBlqraSYU3CpNS2xdoMZ +zORrD3MY0R83Ql9rqEQHuq0OqmNSsZL/3LHmKc2mt6RM22iKSAeYV8QWK3GXdJTrSnVqNPJ+/duf lDpK2uHw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uPVIP-0000000BjQv-02lr; Wed, 11 Jun 2025 23:55:53 +0000 Received: from mail-ot1-x32b.google.com ([2607:f8b0:4864:20::32b]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uPU9v-0000000BVmf-2U7H for linux-mediatek@lists.infradead.org; Wed, 11 Jun 2025 22:43:04 +0000 Received: by mail-ot1-x32b.google.com with SMTP id 46e09a7af769-735a8be4ea9so113386a34.0 for ; Wed, 11 Jun 2025 15:43:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1749681783; x=1750286583; darn=lists.infradead.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=XlnZuUqEMiDPyoPu1uidt8DikGLHmN/8IAgm5AlJwiI=; b=h17+jNScjLzaZIHw6XPujfmByLsq0PzNyxwQrcVBhmvPpDaYOA0SzwLD9HdUh7EWOv ze/7MH9HmEcwN4gKNovHcxi5+2969nS+Cg9Gdutgu+ot9wDuvT1LHpFJ4ZGuWaeZGxEn Bj9R+hhOpQMpU/Sy+I1aL4DpjfNU4qOj6Q9tweg4C0INic9j3t8iEM6QpGMLcMJCDzCd CTx1hNE9aHv6mc6xmLAOBQA2o2xvA8hqOIxAS4ASIWy6PAi4/JPL//SOdu8hksf6mEUp odEWxhziCF2o+Gv3LDflnyugsQNKYnDixk/cHt+32Gd9eEZFEu2jDPp/PV/d3DBAjqUf tGYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749681783; x=1750286583; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=XlnZuUqEMiDPyoPu1uidt8DikGLHmN/8IAgm5AlJwiI=; b=b3iPSuPKEB8L5owXAWCWqQ9At/0gMxpE41/0LbYp/BzWvgpgQ758PCDm6YCYWSCir2 RrOQnumqM6Xz1iaviFDY7ZdpWd9L5rPsUQmrcYHW6TCL5Jo7DMRUb/Be1Awe06aTuuO1 1LBQ7Qmz75mLCKS4rh8LPaq2L7fbmqzenbfpUXi6mirVlkZYmSAxlszNYbDvqmqzrHQK 8bj6PAqpWJ80hxaAxTPJKg5mmt4aEokQ3Ep0bMZsFsp/b1YlP4FPXi71da5h5fbXcyCI lDXeb3zlAKA2Y42rckWpWieQ5Sz/3bJa/lP3DhHlWMOy4md7ZwhoG0LbQI23/80BwSAO 92mw== X-Forwarded-Encrypted: i=1; AJvYcCWcFh7MGzUfEpWadwb7AIa2Q+eazX9o3P0QTwYTmxYeJ2FAgZwM3ERRfLzKAO2KCHzD03cIM3uH0TtGpzWyAw==@lists.infradead.org X-Gm-Message-State: AOJu0Yxob+Kf6r0T93g8IhPJMaJ+fNu1MsEb/E8i8HdQO4UeKG9jCR1/ QHp7hSQe59UIn6YAWmVsx7amzCbMpvdip55EIAv0tGxTqim64h5HxYPewSt2h3nJFG8= X-Gm-Gg: ASbGncvUbHPV24A5uv5kFser4/1FKlKhDfhreLVRmAwTA/r5skbZHSATx6g7dozcWHU 2tZQJIa2AUT9y69hNg86j3M8mOt/na4t0KSW8T7hr/ucbFtiPk5qmeoFA6oiQfSPDcazhmkXhC6 qBRFvzxv2YZdAnpKeXY1gqMZmBehNi/QXwD7IDoLJILgyKrnwSrK1JDaQSk+8JxaJb68BGsF/eO b3qaLX3BHkw0DxVnT94fDW5gW9ks7r9lpuj3Yyu4VSai6DWd8rGN0dNFh1IC5sKHt/Ot3XJKTkT 5P8kCrs8U3+GMiktjGRiLAG502V4Nrj+thngsPf7Gs3dNTn5b/kE5rFeiChCFWuX9oBXWRg4VBt rSnE= X-Google-Smtp-Source: AGHT+IHanymhU6haQwMX08UaVWjgDuhrBJkJnuAw0FtFP5FomR3rskOHKaWp159bL/od+P/uW3UjAQ== X-Received: by 2002:a05:6808:2388:b0:3f9:4f55:a002 with SMTP id 5614622812f47-40a65fd343amr919002b6e.12.1749681782819; Wed, 11 Jun 2025 15:43:02 -0700 (PDT) Received: from [127.0.1.1] ([2600:8803:e7e4:1d00:4753:719f:673f:547c]) by smtp.gmail.com with ESMTPSA id 5614622812f47-40a682fbf05sm24684b6e.32.2025.06.11.15.43.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jun 2025 15:43:02 -0700 (PDT) From: David Lechner Date: Wed, 11 Jun 2025 17:39:16 -0500 Subject: [PATCH 24/28] iio: pressure: mpl3115: use = { } instead of memset() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-24-ebb2d0a24302@baylibre.com> References: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-0-ebb2d0a24302@baylibre.com> In-Reply-To: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-0-ebb2d0a24302@baylibre.com> To: Michael Hennerich , Lars-Peter Clausen , Jonathan Cameron , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Matthias Brugger , AngeloGioacchino Del Regno , Heiko Stuebner , Maxime Coquelin , Alexandre Torgue , Francesco Dolcini , =?utf-8?q?Jo=C3=A3o_Paulo_Gon=C3=A7alves?= , =?utf-8?q?Leonard_G=C3=B6hrs?= , kernel@pengutronix.de, Oleksij Rempel , Roan van Dijk , Tomasz Duszynski , Jacopo Mondi , Jean-Baptiste Maneyrol , Mudit Sharma , Javier Carrasco , =?utf-8?q?Ond=C5=99ej_Jirman?= , Andreas Klinger , Petre Rodan Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, David Lechner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1139; i=dlechner@baylibre.com; h=from:subject:message-id; bh=F7t+iKhqynKqsGA0Dj6cleYDfnxlvUihp6+d7Cd3LFc=; b=owEBbQGS/pANAwAKAcLMIAH/AY/AAcsmYgBoSgYkRI+gTkzxZcqPjcDI24PviRY3280AM10XW Soj9nQ54b+JATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaEoGJAAKCRDCzCAB/wGP wJavB/49bwHnqdL6jGGKc0R+tNBC8oWNqAgzFcpqGTNVFp+z2yNK0M3aP1hqPHGL2QBr2TA2lr3 eaNmz5m1EZlIb1/czf8EL21m6pLnB/38XHfTEkuUfIR69m6fw3BS3Fc7dMyIcsr8vdRdjMxUgEx amFPpQ4mKamDXx1TLLaF0FtED8EH22FcU0HwsL98z1KR/0+4fZ6CTqvl2MRVikEAFvjbQdfenTc pegbUCdP51Apv3/KFpJJk3XTP46eI1vJ9vHFWabzWZyk42ooaanCWQC61vYb2d1I3+Qq7771tUx 7nB5lSZddiuam+AwBUXxlh+iq8FqViKV9rtz43g/ULV3QsZ0 X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250611_154303_651664_9257A495 X-CRM114-Status: GOOD ( 12.37 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner --- drivers/iio/pressure/mpl3115.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iio/pressure/mpl3115.c b/drivers/iio/pressure/mpl3115.c index d6715997f13727e22346a76819cb7dc58a96614e..579da60ef441482a82f3bdf4f67436a13ab3e09d 100644 --- a/drivers/iio/pressure/mpl3115.c +++ b/drivers/iio/pressure/mpl3115.c @@ -160,7 +160,7 @@ static irqreturn_t mpl3115_trigger_handler(int irq, void *p) * of the buffer may be either 16 or 32-bits. As such we cannot * use a simple structure definition to express this data layout. */ - u8 buffer[16] __aligned(8); + u8 buffer[16] __aligned(8) = { }; int ret, pos = 0; mutex_lock(&data->lock); @@ -170,7 +170,6 @@ static irqreturn_t mpl3115_trigger_handler(int irq, void *p) goto done; } - memset(buffer, 0, sizeof(buffer)); if (test_bit(0, indio_dev->active_scan_mask)) { ret = i2c_smbus_read_i2c_block_data(data->client, MPL3115_OUT_PRESS, 3, &buffer[pos]); -- 2.43.0