From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792677212; b=y71YzsmOAvk/hq9fLBjmOKJT/j01KxlBw5Q9N/g6kwCbBm/a485q+YiZMKaSHKVS6aF5 h0O9PJV8L4jxr4w3bZDfp7erRrIUl4Kd5O/Cb9iNpdxPX+XlgyGaAr9k7U+7KNyljzUik EOGP+aAhIuKR/S8UoQY0NGJlQaQGodIsbzfjCEOkhdUL/UrRdG6UvdH8jL8AkfBeTkq1E /LCYMPlo7i0vjxKJCYKJzNVUykPZYqZqFPmxwzhMeXx2VGxsrSjaibwqjIiZDkCVY5Bs6 G2Tc04Lue/GUHr98/BOjrTdJ3gZ2JwBDK822DrXcjXz1Wbb/OV4qJioQJk709f3RlPA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792677212; h=Received:DKIM-Signature:From:Date:Subject:MIME-Version:Content-Type: Content-Transfer-Encoding:Message-Id:References:In-Reply-To:To:Cc: X-Mailer:X-Developer-Signature:X-Developer-Key; bh=JWUMgHIC9UGBSIolOL6GZvlgSz5q9pcFRnOxAnmCYII=; b=ssb5MHbUBtBUiS6WnUdG2RxR5TTO8isswfuY1p1LJb7vUpbY5DZDDbwinjFSRBVCHo5S obrB5L8EI4O5+K8z4FySx60dD2DekAiahtWKzkV15GVfsS7jot5koravXOWHyvVS2BHzE v1nUt4OkNUz1AOw8d3om6ieHQ0c4XKWLcJTFNgYmN+FbRh6gy5043/Uzg7eUvYE8MuE+F ZheIHf+AWJ74DOvDYlkThOzCILR9AUc/Zy4QPlCt1gHBSZ+feKytpvBJWe4dGVMFlxSSR 0TjRPZiibSPGsRbsqXvMjm35e0zvZLfoe3TvcDTU9eY1WoFkgw0BNy9/i5Fn89lh1Cw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=VOnTE4Po; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0BA6C60A262A for ; Thu, 22 Oct 2026 13:53:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=VOnTE4Po Received: by smtp.kernel.org (Postfix) with ESMTPSA id 343DC1F000C1; Thu, 22 Oct 2026 13:53:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792677211; bh=JWUMgHIC9UGBSIolOL6GZvlgSz5q9pcFRnOxAnmCYII=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=VOnTE4Po4L6MynjjqxOAdzLNYT0Sb5B87WowVvuOqcYlMCTrJQZKQkz3rz7vfQsWh ur/5k3If4PTNIWVTU1yjBgp5VNBwH5696tjOqlhNUK1mhB4Nrs540vgiv3yO/asbMP wo+gAkNqdIP0R/wxnP/IE4np6uUIaixEY2MheexD/mWx6+/osmJpw+db3pWh1qBLtV jRF+3LSYEpkLRn2a3lk/LvAbJzzkhIW4nntffFYCgoEZhBew3XwQ0Fo+zUThtbukRN r3mA93ajQm7rMaOa91UsfEIgaj/TV5924VVbPhcZF5/0qA3sRODJlIVUhcr2/7S28s HorOmuyG5rsDA== From: Maxime Ripard Date: Thu, 22 Oct 2026 15:53:05 +0200 Subject: [PATCH v6 04/15] drm/atomic: Use __GFP_ZERO instead of explicit memset in drm_atomic_get_connector_state() X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261022-drm-reset-state-flag-v6-4-f36d640b7e76@kernel.org> References: <20261022-drm-reset-state-flag-v6-0-f36d640b7e76@kernel.org> In-Reply-To: <20261022-drm-reset-state-flag-v6-0-f36d640b7e76@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=1374; i=mripard@kernel.org; h=from:subject:message-id; bh=LZbtPHVlMICiFBeZpJ8LPAkCVdWnWToVa7ZsZD+t1oo=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDFm3RF0SnBlDbwVu/yZ4YkraoZt+pxrPylV/5zfu81jS8 XHm3yslHVNZGIQ5GWTFFFmeyISdXt6+uMrBfuUPmDmsTCBDGLg4BWAiYlaM9dlH1liEuOo0XLgd XBV269LEyW9s1/zZcjOs/+Crnj2bLkYLh3r+TVrmvZStRnjuhAO/FjHWGeoYcUz1ETafmP577sp FYtV7u7i5j3ks7t/AJ1cQVORwaXfJiXzXfuaIta3WspY6VpcB 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 Reviewed-by: Daniel Stone 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 @@ -1391,12 +1391,9 @@ drm_atomic_get_connector_state(struct drm_atomic_commit *state, 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; } -- 2.55.0