From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 7FBC11E515; Fri, 24 Apr 2026 10:19:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777025950; cv=none; b=BhmkEkzsOc9q0jyhYEMUO/aInOQf1sZTLqUmF1XypHKX2tXoU25JVKhFSAfsIEHufxVSt63bmqLagctH4Tszun60t7dDHq/CHnrq70dX41oLaPi0pPHO9dsupj57ORKNu9nthuvfQlTWGt4roV+yoR3J2pLxnvaU7paVtRKZvY0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777025950; c=relaxed/simple; bh=XAgmvRaLUMDtneZLQ+nRSwQ09O7j2t1sw6KuyUmkyW4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Tv5foY9BHi1p9L4aN5aP1Es7NwXR95dZGy1UoE4q/5ai+dnYHiEoZa5vkjwXJMOOcPMGMM9YSX3DZggn8FxFwgcjwkOt2tRqXm2MZPnVwVCVNVaYUmJ2l649WMthehei0Yrs5n2n+EIvywfbKnYp/hBnjyxIBB6+FsJBUAJkyqA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Yxv8iu9p; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Yxv8iu9p" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85EDDC2BCC4; Fri, 24 Apr 2026 10:19:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777025950; bh=XAgmvRaLUMDtneZLQ+nRSwQ09O7j2t1sw6KuyUmkyW4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Yxv8iu9p5oca1HpS1ke2aUuWLynHWauOJPv7fhkNJu8atoJVq+sr0oJ8mzcmEd8cH 4MRIFx08lu1pPnXgUPlzzURn5rl6Bp1I/pcL7SS5+tlCsCQCuVeYv730AsRREU111/ GFwM6JSOO8N2WNYcjzj9cCG6FzRLuGiSpyrk4Ad+dw5QmrwKEnFA3P5vwifZaUsdwR e2JQ3OeBsSQiICWG1py38LLHE44mduTtqgy9lPSpQLXKWLacvJHJ9Lc1KFhKxHa7K7 I/IITi9rPv3AEzOFTKjkXparalaihY/EwSDk+1DdxDUSSHaQM3+erQ5WFhX3ezSnuz KUSJgEHCMSGQA== From: Maxime Ripard Date: Fri, 24 Apr 2026 12:18:43 +0200 Subject: [PATCH v3 03/20] drm/atomic: Drop drm_private_obj.state assignment from create_state Precedence: bulk X-Mailing-List: linux-doc@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: <20260424-drm-mode-config-init-v3-3-8b68d9db0d8b@kernel.org> References: <20260424-drm-mode-config-init-v3-0-8b68d9db0d8b@kernel.org> In-Reply-To: <20260424-drm-mode-config-init-v3-0-8b68d9db0d8b@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , Jonathan Corbet , Shuah Khan , Dmitry Baryshkov , Jyri Sarha , Tomi Valkeinen , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Simon Ser , Harry Wentland , Melissa Wen , Sebastian Wick , Alex Hung , Jani Nikula , Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , Chen-Yu Tsai , Samuel Holland , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Canal?= , Raspberry Pi Kernel Maintenance Cc: dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Stone , intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, Maxime Ripard X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1546; i=mripard@kernel.org; h=from:subject:message-id; bh=XAgmvRaLUMDtneZLQ+nRSwQ09O7j2t1sw6KuyUmkyW4=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDJmvnTub5Y1EX5zpXbVpR+1EbT7GPtt2bq/ZjTtPRKYqa O91D2LrmMrCIMzJICumyPJEJuz08vbFVQ72K3/AzGFlAhnCwMUpABMpdGGs4TrjI6iivfnix5/s e+/FyHxXkhbJU9s9S/zRmrojrlGdYq+PhkrOLFx34Wfq+2J1JptOxoaJtrvlyrY8zJn9Nq0uYIv +iaBlLuLR7Ss3NL6fmRtyIOq2OsezKfdeKN+5wiwY8p//DzsA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D The initial intent of the atomic_create_state hook was to simply allocate a proper drm_private_state and return it, without any side effect. However, __drm_atomic_helper_private_obj_create_state(), which most atomic_create_state implementations call, introduces a side effect by setting drm_private_obj.state to the newly allocated state. This assignment defeats the purpose, but is also redundant since drm_atomic_private_obj_init(), the only call site for the atomic_create_state hook, will also set this pointer to the newly allocated state. Drop the assignment in __drm_atomic_helper_private_obj_create_state(). Fixes: e7be39ed1716 ("drm/atomic-helper: Add private_obj atomic_create_state helper") Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_atomic_state_helper.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 76746ad4a1bb..875149494b00 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -729,12 +729,10 @@ EXPORT_SYMBOL(drm_atomic_helper_connector_destroy_state); void __drm_atomic_helper_private_obj_create_state(struct drm_private_obj *obj, struct drm_private_state *state) { if (state) state->obj = obj; - - obj->state = state; } EXPORT_SYMBOL(__drm_atomic_helper_private_obj_create_state); /** * __drm_atomic_helper_private_obj_duplicate_state - copy atomic private state -- 2.53.0