From patchwork Mon Nov 29 12:06:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Christian_K=C3=B6nig?= X-Patchwork-Id: 78900 Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1mrgfF-00GR8N-0P; Mon, 29 Nov 2021 13:25:49 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241265AbhK2N3E (ORCPT + 1 other); Mon, 29 Nov 2021 08:29:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53250 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231410AbhK2N1D (ORCPT ); Mon, 29 Nov 2021 08:27:03 -0500 Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFCA9C09B056 for ; Mon, 29 Nov 2021 04:07:06 -0800 (PST) Received: by mail-wr1-x434.google.com with SMTP id d9so15383253wrw.4 for ; Mon, 29 Nov 2021 04:07:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Qk7PwcqKvFwxCK8c/zm5biTBtYcJsU3HDhj1Rke+mig=; b=FUno/CVbKE7JV8YJFa0o4CtrijMPMX87xBQhWP+1YXYchLcq5zbHntBZNNdZBl+s8R vshKLxgazIvSz+SvzJMinSgOY+QHMkbgIdd93TsKzKJ1bbxUcNxCQC3Kl5m6InYvdE5f wtAY9LDNSYcGcOy8X8BkiAZe0AwNL7nhCdd2qfhkIOA18p96RFkoa3EcVdVOSO06ITtl OC5ny0EPuOUuEJNxh1bI3MPs9vmhw62O2uWfJzwZbZn+Gmp2BbHucnTnzYQ8v/cGzViN iiKMZWe+OCx6yrdvKI4Jf21Qd1XvjG6MMdAAonYkrjDrZTab+kup5OirXnL9as8fbKPf q7UA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Qk7PwcqKvFwxCK8c/zm5biTBtYcJsU3HDhj1Rke+mig=; b=35h6U/70kSbVPsxAbKqKDMZem7q8L/t5v9LzrXSqEowjtZDtP22mtPEwDosB07WGEO KCLEp8hfySKuFfEuHDa5hONbTjA+lRWGHlTl/hdYziOFgepPVsyMb5cnLC45nGr7AlH6 4llJ0jbMOZCHvqND3aRE2Fw+b9vzVAY+2I/NdNgGktBZoTBAJr1vs1ZAvEh7SIrG6bHg YO8A/GAE5sSh35ozMM1XCUq/9IdJFmK3DhUUo7b31kj6Gl2lYmk3aulFTHI05PEA4dFr rWy6GmXEVrng5ozZasljJLpEu6u+BfHcBiQtHjnVXRZL9Zn6DBDSgHXjO9GTfK5VhJQz PweA== X-Gm-Message-State: AOAM531U/gIdUu2dCg/BYiKA+D3poCnoHR7ozVbF/4tT85VX/wyfGgi9 CY6T24hs0KQfIyGUnl2QPps= X-Google-Smtp-Source: ABdhPJzutv9dYwYC0rKE63+JgPY234G43ihXLtPrH/m+jsweVYi2o2XtcslEUwhpoQYexjXov2BVhg== X-Received: by 2002:a5d:6b09:: with SMTP id v9mr32860041wrw.591.1638187625591; Mon, 29 Nov 2021 04:07:05 -0800 (PST) Received: from abel.fritz.box (p57b0b77b.dip0.t-ipconnect.de. [87.176.183.123]) by smtp.gmail.com with ESMTPSA id b6sm20415234wmq.45.2021.11.29.04.07.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Nov 2021 04:07:05 -0800 (PST) From: " =?utf-8?q?Christian_K=C3=B6nig?= " X-Google-Original-From: =?utf-8?q?Christian_K=C3=B6nig?= To: daniel@ffwll.ch Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org Subject: [PATCH 03/28] dma-buf: make fence mandatory for dma_resv_add_excl_fence v2 Date: Mon, 29 Nov 2021 13:06:34 +0100 Message-Id: <20211129120659.1815-4-christian.koenig@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211129120659.1815-1-christian.koenig@amd.com> References: <20211129120659.1815-1-christian.koenig@amd.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,FREEMAIL_FORGED_FROMDOMAIN=0.001,FREEMAIL_FROM=0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no Calling dma_resv_add_excl_fence() with the fence as NULL and expecting that that this frees up the fences is simply abuse of the internals of the dma_resv object. v2: drop the fence pruning completely. Signed-off-by: Christian König Reviewed-by: Daniel Vetter --- drivers/dma-buf/dma-resv.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index ff3c0558b3b8..4deea75c0b9c 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -305,8 +305,7 @@ void dma_resv_add_excl_fence(struct dma_resv *obj, struct dma_fence *fence) if (old) i = old->shared_count; - if (fence) - dma_fence_get(fence); + dma_fence_get(fence); write_seqcount_begin(&obj->seq); /* write_seqcount_begin provides the necessary memory barrier */