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=1793356085; b=4tbd2Z0KQ1NRB+bpQfayRQbfGrVYNhmZEwKHGXLIibda3/XOby0Id2ZiYtYtlIGbnOB2 n7Asqktm8C5EYmULWTPx9tACQEqPL1sBW5oBLtd9ju6XaxKqSCEeJF8mvjviVwTfYhL2h GRuEQ0IfRwFgQqXWfigFzK5J84t1f4cMDDyQok+0+xOq5QAD43h6llABsAm4aQt/hE95H 2j42bT3q+MQdJCUvRZWQnqKSjz1E+jKWboL93m3sCNQcO9ug7jT4d30Vb+J68BQMQOujx a0NWe8UUUn8pHXl9MJWoVPheDqmfPiN5Nhf3CZ2Td9z9ZdA31QCWsdyPwq1U5bSzb8w== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793356085; 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=nD7RpgYmvzjMy8lxUtLWXcHZTib6Oh6XvGTJf8TNPFP9X+HDwXYXc/MOaUgJTMCWQf2o MiE0kvo/j1GxF6GL9eBEs01mYyX5OHLBOjt+tyc8DWkWVHVH0Qw73JiZNxdKv1eE9celp S9ThVnA1Po3FsTv9n0e/SOQsjVoioYq6ReP7/Uo9S4Gv58wW8YkXUJWyU8yudqb7XoIUB grkzBvpEQ5yuMm5z8SM98DVG55651nJNRVHCHfXsPiyg5z0CTCYiQ2VUJG8LhbDtmsgyn bXzfKceYXo4RTH3t6/3zkgbV5WQOikDyOWWHpZ7w0qO3HM/MxbP1IfZe5zaQXg8XGUQ== 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=JPNvVh4I; 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 50A76606A32E for ; Fri, 30 Oct 2026 10:28:05 +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=JPNvVh4I Received: by smtp.kernel.org (Postfix) with ESMTPSA id 605B01F00A16; Fri, 30 Oct 2026 10:28:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793356084; bh=JWUMgHIC9UGBSIolOL6GZvlgSz5q9pcFRnOxAnmCYII=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=JPNvVh4Ih/ELqgxdbt6v3NVNaVs1vG0gq2S0vJetMR3B99MMA6c6s+inDSo1EPlzh d9GF7NtOIQI/dhET8QoPqiuvxii8vskFBPwGmdGZi7YwiAyPT2abmb/UOxLZAIpzSk Umtujd6f4nA0WDEFWyiAv2OBAO2/C5Uo6Cc/VOHsLsG4w9/irbnyQSMRSJiuGyAoKH qPtbqdwb8GVBGUiMYuR+5w5Fb1khlDk1hXhdyMpZUcMqyrqFTHAYzmCsHoHptPcgx3 e8HKXOmU+OmWPEfWtqtAst0iCQCyDDWY7QkW49xos/Dbz6rzHZn4DqNWQJDQHkm8by v6+l2b2VOU3BQ== From: Maxime Ripard Date: Fri, 30 Oct 2026 11:27:37 +0100 Subject: [PATCH v7 05/16] 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: <20261030-drm-reset-state-flag-v7-5-4e55eaeae683@kernel.org> References: <20261030-drm-reset-state-flag-v7-0-4e55eaeae683@kernel.org> In-Reply-To: <20261030-drm-reset-state-flag-v7-0-4e55eaeae683@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=owGbwMvMwCmsHn9OcpHtvjLG02pJDFlPCiXt1kp9mP5uppHHV9E5GrvXuzjoiP9/axli2ZP87 svyB+tOdExlYRDmZJAVU2R5IhN2enn74ioH+5U/YOawMoEMYeDiFICJOLcyNqzx+9qYmyH93/zo Boe7C3JSqgLnflrtZecic3P/8Zk3Lpefmfri3cESAxE1yR9L55sk/GJsWPdu7qxmuRDPIidt7Y2 rNaSDFtx9mzdjf+7m5Bj+2E/pHaHHFu89uOS/TfyhwBXNUUWVAA== 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