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=1793886945; b=ytoQqDt221QCNZ1Mn8PoqlWKgYeForisACwTGtferEaCGIKvwwu/f5if4QWkVOdhfOwx BZ7ZOOJd54aOFmO5emaJyZPLLnt86p7x77lpZUwzNba8XRe5KBlQ6dQYzMSEqNtV26pD8 kTy3J9VcfFHiuUvlwaApa1uHyjIDvCM5CCyGa5uenPV40DJ8N35032NR4yWWHYe9xl323 xBK4l02h9/NbKzPi6of2E+faAEeeCAWZLfYGvgwuu9O1lyjHbk00nCvmRMpFWv6zOqeAY TbYfMCStzdaq69AheF9TjjciJqZ1etGrZ+C2EIzcCylmvUswYB5s5TBggfm05hrEzoA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793886945; h=Received:DKIM-Signature:Mime-Version:Content-Transfer-Encoding: Content-Type:Date:Message-Id:Subject:Cc:To:From:References: In-Reply-To; bh=FRvCb0qdn0UFgCq8z99GAbGRLgJXO4j4sZWydl6Xwds=; b=et/IS7fh6Nz9eQUvjljX0xUedY7AVDW0L4QdHu6o4/25GhqBxWMqGtyZMYL/viBRWstI OICCpO9bi4amx3EbkzN12auqCzdjoEs4mWYPzAgQxNgr5OrEvfIzaiYhmWlAU4Vwa851o n3ph3+xzWPx3KFhgyVUT5FucDcUbPvqvQUfnWW2lUxAhGFk08EcuQkCKUEZxb35Ov0MJj wgyRFuMFLkLc7TpdjJhaQZFOMF1R9BdE8gE1WPgWSdIwfjE0Sr8HNQeiPsoClNpbyyECi SiXLREUFLRjO0gslF75DRdtdCIULj5Uj91YARic6RoCuu/EYJPSyuvXtr5xosvgNs/A== 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=L8B5TUmk; 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 788DA606A326; Thu, 5 Nov 2026 13:55:45 +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=L8B5TUmk Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9775A1F000C1; Thu, 5 Nov 2026 13:55:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793886945; bh=FRvCb0qdn0UFgCq8z99GAbGRLgJXO4j4sZWydl6Xwds=; h=Date:Subject:Cc:To:From:References:In-Reply-To; b=L8B5TUmkCR4s1r1wiNQSpXG2koNdEAW6KB+TqzDVo/Zb1Ew5F67tq4MoHL60J/a4d P1mzGlTZk78Ohq//u2YU359ZiciYbDIFCxJ8APqY6j4X1+ELfJvYEA0XAKiUZh9XIN KsOzC8VOUJuG92TnnENuZUUXAUS6zBXXtAzNxiZ6PzikDx0LxqXdWTatL7KdP+ob+z jwXhyQFGPr+lQSLfTzjTWdVPP+GPL1OuroIsxZuLLqAMK7zVbEB90pbErGwU1KU4UB /pfJvG7/H02SEG2FNqh5TF89cc9MyEvmGIay4WpWqDKsIgWkPckHt8aYC07f7x0D6N 0DIcGyuEInHpw== 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-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Thu, 05 Nov 2026 14:55:41 +0100 Message-Id: Subject: Re: [PATCH v2] dma-buf/sw_sync: Optimize the retrieval of fence reference counts Cc: "Edward Adam Davis" , , , , , , , , , , , "dri-devel" To: =?utf-8?q?Christian_K=C3=B6nig?= From: "Danilo Krummrich" References: <20261105052707.55911-1-eadavis@sina.com> In-Reply-To: On Thu Nov 5, 2026 at 11:03 AM CET, Christian K=C3=B6nig wrote: > On 11/5/26 06:27, Edward Adam Davis wrote: >> Fixes: e531fdb5cd5e ("dma-buf/sw_sync: Avoid recursive lock during fence= signal") > > Please completely drop that. This is not something which has any justific= ation to be backported. Fixes: identifies the commit that introduced a bug for better reference, independently of whether the fix should be backported. If something shouldn't be selected by autosel one can add Cc: # reason to exclude from stable In this case I assume you said that because SW_SYNC is test infrastructure?= If so, AFAIK the stable team explicitly does backport test infrastructure as p= eople also run selftests on stable kernels. Thanks, Danilo