From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C52C34EE87C for ; Fri, 18 Sep 2026 14:18:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789741095; cv=none; b=NPY+a21xtoX6alMX4ni8ugSG3eG+KXHmBN0+cn/9yEFoIzp91hA0tpQ+CIKuiYSRaoS9BgOqu8Tp6xCEYEVfcIC8MflM3kJnPN4BfseOw24ygiqy3bK/OYytG4jZ6IHzn+WPf1v8oxLMPXzXYDaRUb3Sr6b/BWQPJnPhAvgPx/I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789741095; c=relaxed/simple; bh=QGxTju+P6OmxblkkOc/G7V6i744GeSNDFj3K6kdMM7Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=jgc6QL0anb23AtW9sE52xgWJfCgR6CzRUp5AUoWg3HV+s8lbWReXEH/nEM9YfgKTpX9qghdv+Qoe0LEAffu6XcurUK/Vq3rEB3n9XbT1dZqitmsKa88kU0ycWHx/tr2q8R5FZ8RRAxi3YgTbNU9/7dvu+RBvpJvXXoY5WE6vDtM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KI0+AvZy; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KI0+AvZy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C28A11F000FF; Fri, 18 Sep 2026 14:18:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789741093; bh=yX6VtmC9ZWWYErdutyz3INiDSj6zlwe+CO7hZeNh2ls=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=KI0+AvZyz+DFyf2wVg+qBgJWkhbvlKrWqFih5S0krV4loP1hX2khX0lxuF1oDm2y1 CwWd9lYlN/DPz6uEkKJMbUaD6zqW7Y5hcjEWA9Z9h1PDROtjEaRczayROIQSgpy8Uy Mk8H6/1DDycDB8AUKI8NAhOsxEw2UaafkCWhbHsXF6DvmP6y/J6QgLskvJPqcy4muJ S0UAqznHSNm0h6Q/64uRjpEHcpFbwnrVt6B7qS6mub8Ds4QL9LQrHMicgRhu9a5TBi 7iz35ZTWvWUGZ2M2eE3LVg2ouXMibkYRX8W1JPfEbYfFhWcQQcGDU0yCEPf4Qq57Cc 35d8Oe1VFAx+w== From: Maxime Ripard Date: Fri, 18 Sep 2026 16:17:52 +0200 Subject: [PATCH v4 03/13] drm/atomic: Use __GFP_ZERO instead of explicit memset in drm_atomic_get_connector_state() 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: 7bit Message-Id: <20260918-drm-reset-state-flag-v4-3-5ad106370f05@kernel.org> References: <20260918-drm-reset-state-flag-v4-0-5ad106370f05@kernel.org> In-Reply-To: <20260918-drm-reset-state-flag-v4-0-5ad106370f05@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , Louis Chauvet , Haneen Mohammed , Melissa Wen Cc: Daniel Stone , Harry Wentland , Jocelyn Falempe , =?utf-8?q?Jonas_=C3=85dahl?= , =?utf-8?q?Michel_D=C3=A4nzer?= , Pekka Paalanen , Sebastian Wick , Simon Ser , Victoria Brekenfeld , Xaver Hugl , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Maxime Ripard X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1560; i=mripard@kernel.org; h=from:subject:message-id; bh=QGxTju+P6OmxblkkOc/G7V6i744GeSNDFj3K6kdMM7Y=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDFlrPQS2P1i4NHT6sV1pZ+fs8JwT03Lp/q6VkZM26r/Kj z2UVvC8p2MqC4MwJ4OsmCLLE5mw08vbF1c52K/8ATOHlQlkCAMXpwBM5NtUxjpNoyDDnHeK8zfZ 6n3eHeHUvLaw+9JUacW9yRVXt0o9mxp2PsdqblD/fCevajG/6mlTHjHWWWzQ4LUw+5I60f7n385 U52De/8INboLX4pjVZ2kHct2eFqO12s9tT6QzV8DnEp1Tms0A X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D The drm_atomic_get_connector_state() function grows the connectors array with krealloc_array() when the requested connector index exceeds the current allocation, then zeroes the new entries with a separate memset() call. Since krealloc_array() supports the __GFP_ZERO flag to zero newly allocated memory, the explicit memset() is unnecessary. Pass __GFP_ZERO to krealloc_array() and drop the manual memset(). Suggested-by: Thomas Zimmermann Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_atomic.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 43b58e9b25e4..80436adcfb7f 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1388,18 +1388,15 @@ drm_atomic_get_connector_state(struct drm_atomic_commit *state, if (index >= state->num_connector) { struct __drm_connnectors_state *c; int alloc = max(index + 1, config->num_connector); c = krealloc_array(state->connectors, alloc, - sizeof(*state->connectors), GFP_KERNEL); + sizeof(*state->connectors), GFP_KERNEL | __GFP_ZERO); if (!c) return ERR_PTR(-ENOMEM); state->connectors = c; - memset(&state->connectors[state->num_connector], 0, - sizeof(*state->connectors) * (alloc - state->num_connector)); - state->num_connector = alloc; } connector_state = drm_atomic_get_new_connector_state(state, connector); if (connector_state) -- 2.55.0