From nobody Sat Oct 11 04:31:32 2025 Received: from mail-oi1-f181.google.com (mail-oi1-f181.google.com [209.85.167.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C72C325D1E4 for ; Wed, 11 Jun 2025 22:42:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.181 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749681765; cv=none; b=dOyvPzHg2+f6J42xAW3x03gM8Mw/v14FNT2z2TWGXYz0HdDwBlSduKlkNDrsmWGXCnyqxrcpwldLdLNu8xWSh1RjLhW0VubyAT19to8mwnKZiWRC9iagwqvTkDc5/q5WcmX/rndHqCfhHwf9BKtPloCBAX+Y/xXxb1I8WkTIncQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749681765; c=relaxed/simple; bh=5XDESMLoIhQpWzCEq2C2tgUyVZF/Bo3//3/twALhLps=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=i/HDJL02M5sBqC0ilLzDzxmwdL6SSjENZ130hrwgJGvUHKVjvcG29XNTkMLbJD1b3eHMUyqaHufiCb+5T48+1tXyobzfwTFdOuOtyt2AcikVXP8oYOdYwPtsJA/tFj3TSozPZmr3dNAhn5xVdp/qHbTVNk79Wmb9nJxNEnj5Wpo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=Yce5wZl8; arc=none smtp.client-ip=209.85.167.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="Yce5wZl8" Received: by mail-oi1-f181.google.com with SMTP id 5614622812f47-407a6c6a6d4so131106b6e.1 for ; Wed, 11 Jun 2025 15:42:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1749681763; x=1750286563; darn=vger.kernel.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=grWWpqkFx3VZeZHS3cu1IgF+mji/0suRYvkUNQaAo2M=; b=Yce5wZl8NcnZGnXze45VBERPr+GdgfJgXDu7W9+7O4mlSOhmYWuxbahAMR1pItW4i8 9+yHbhjovbPzZHhuOlYaQci78vz8qG6/bDxUmFWNFpgcAullMt8hGbJn1vnel76/k1B/ 1nNrDk8c21rGaY/YeBedGXngZhsNqD3vhYUrfLjm/INZ6smdulVAGnuxzCAOi6iPpOd/ H2pld/c6Qflx/mTKkqVbKU7KfrHikYVhnIKBF8dbyziI8LW1fTNwO6mCF1KQl2K0HUme QhobR4Eo1OvYEshoAar2aHkp8sxl4z93Ve3DKmHQAd1ViyJW2xBU1P4rWbpL4Gv3yevh xbEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749681763; x=1750286563; 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=grWWpqkFx3VZeZHS3cu1IgF+mji/0suRYvkUNQaAo2M=; b=uGBvRdoEBzrgzImBGCI1XMHtdH1nAPvrzAfpRAivtIcDoWRatXQKFHM7rsRJOgwQcs AWkk4NAaXubVtqbet7S15O6ZmCupcbSjYGLLnx4LMw37XQyFe0Jtd5Fmf+MJo0mPpIFg fjbQONOUerDiu/e826xlC7Z6GPFo4kXs0QqSg5Vib3zotCCeDEc49Sid9s+PehJHUh/v nTq0nT9YfSBE5ld01xep242C52wrHfIp2RuDHUYLVVDGIAxGlz+0lb/fEiUK2zEo4/NF ZGbbAPK1oI3e8krqQ0ziaKvwqqjwpfOnJHsnLXDMzVRjS6b1tnTAP0PbfA5g2FQOogTT Tiuw== X-Forwarded-Encrypted: i=1; AJvYcCUMLsSKaanet8bYEETWkTJFbBKehejhfkRqGBWmDpH4sPXqu243kLSPlfc4ofuQFGFLnBgTjrdA5Qu7Yu8=@vger.kernel.org X-Gm-Message-State: AOJu0Yy3POCXfI4Nd8AMmbd5TUNhSemZ7DSX/Gqt9B1hHb4V8CCWS38c T+d4rG3KhD2zl3anKZ8ebRvvNrrWZc3oN/GY7CmmalHLiWZV4tHvLrp1oOe9wPf0F+Q= X-Gm-Gg: ASbGncsPDlkMFMnYy2LxHuio7RshyiSygzPejFqamcv1UU43aL17YKHOGBaGjOiGdEV R3jUsn6VQQXhaVY2YB/L0S4AQ12xnDxNbDvjAS8A32GCSs2MZJrHfT4pzFka7DhtrX1hf2gOytM rEF2+uWDN2p1FpsVHLDADpW3Fulr4nMTq77sEc4v7C+mT6SzKwxJTVebuOHTdZH9hnVChM/NQ8s epHklsHd/wronyeczFPkTTUgKN6opIMtKB/PWpS+X6lrwsZNC/mchcwZNTHdRc040lCy6VdZm0z fBZz71ahsz7L4mktpXrFYaa8qSWDhimwfwgV37APEot8vsr1M2H9W8LgbLXpNIPBS5QFftM6Ey5 7X80= X-Google-Smtp-Source: AGHT+IEcwqu4j736p3LcoP9RK7c1t3h3vtLigrmQmQXvolB9PCLNg9UOQOYCbdmCSMZJHTC5173d2A== X-Received: by 2002:a05:6808:178d:b0:409:f8e:72a4 with SMTP id 5614622812f47-40a5d05e776mr3722453b6e.2.1749681762900; Wed, 11 Jun 2025 15:42:42 -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.32.2025.06.11.15.42.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jun 2025 15:42:42 -0700 (PDT) From: David Lechner Date: Wed, 11 Jun 2025 17:39:05 -0500 Subject: [PATCH 13/28] iio: chemical: scd30: use = { } instead of memset() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-13-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=1024; i=dlechner@baylibre.com; h=from:subject:message-id; bh=5XDESMLoIhQpWzCEq2C2tgUyVZF/Bo3//3/twALhLps=; b=owEBbQGS/pANAwAKAcLMIAH/AY/AAcsmYgBoSgXZRwKjwWR/y52G6u0y4MdHz3+z3OU7EB2di 1dhrLGz2YmJATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaEoF2QAKCRDCzCAB/wGP wMtsCACJ/xWk2LPxNgDVgxzxAyBLwPF0PwZ+uQ2OnVZ/GKv4J2FuZDLTEK8T1XbSMOtLfNe3Emp g1WSmomvx01TlhG5cJCNgELnTbtZDAKvzuZ3aJ0YaAlab0axLhbvOxxqK5KcfI7G1vuzwrVwjRD txipOkAWnZ1mGS1U0hXSv4oYKB16S5Z56mkqqgOjtzjZEb1+YGybjl73FD3eN1K5SYYrp2Z6aqV glfuOs3MYd4xbj9SpdPMC+zKvBKyjga031caed8DL3D7MvrboWa/CoWmmIAJfMRFoeO2+yr84yT zqstaruPKxBUMHnLEBtRUeoXXFrx6mJM3kA7FDJl/xC7bJkC X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner --- drivers/iio/chemical/scd30_core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iio/chemical/scd30_core.c b/drivers/iio/chemical/scd30= _core.c index 8316720b1fa32b9746b4aeefe7aedc77b3ba57e6..5df1926cd5d985a60c7095f692a= 63093d522d434 100644 --- a/drivers/iio/chemical/scd30_core.c +++ b/drivers/iio/chemical/scd30_core.c @@ -587,7 +587,7 @@ static irqreturn_t scd30_trigger_handler(int irq, void = *p) struct { int data[SCD30_MEAS_COUNT]; aligned_s64 ts; - } scan; + } scan =3D { }; int ret; =20 mutex_lock(&state->lock); @@ -595,7 +595,6 @@ static irqreturn_t scd30_trigger_handler(int irq, void = *p) ret =3D scd30_read_poll(state); else ret =3D scd30_read_meas(state); - memset(&scan, 0, sizeof(scan)); memcpy(scan.data, state->meas, sizeof(state->meas)); mutex_unlock(&state->lock); if (ret) --=20 2.43.0