From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout1.w1.samsung.com (mailout1.w1.samsung.com [210.118.77.11]) (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 4E0424EE87C for ; Tue, 13 Oct 2026 11:42:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.118.77.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791891780; cv=none; b=aTnAOTEbMcYGh1fdTf7fOadu2MwC7jiXCzy6XtKK9oxXf6ATydCrSmDhzSrqaDPaV/AUy5+D0TL+2Smalk4JpA1yPTyR27Z+YnpTdhgyrpLqnkYOWvRUHpq2Z8zq4qEUUyR9OZ7VfJ/04rCSkcQkN43UxgXmUB1/d/+w5WCzyQk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791891780; c=relaxed/simple; bh=CIMdMh++ZEplhGMSLLwZfKOvEgqA6HcnBv+q4ybPNGw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:From:In-Reply-To: Content-Type:References; b=qFzlfeJQGcvt2QPm7m/77w/SVzCXLiUVnZ+DD0b1Hr+lWcgGUyCxJvhNv6BBF1WZKYOOI/tPZEGhFRJtB+oUb0wo/eNY5abrnVrUgcdnl/eeqlZrLWEGTkTPL9kUdWvTkcXDhaTwUiQmJEf1NI5/dmkDz2NKwqABz0O3PsZRit0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=QiQ+ZZL4; arc=none smtp.client-ip=210.118.77.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="QiQ+ZZL4" Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20261013114256euoutp0194a7294386bb081489ee9c6afa93f066~eFBOxZCNt0506505065euoutp011 for ; Tue, 13 Oct 2026 11:42:56 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20261013114256euoutp0194a7294386bb081489ee9c6afa93f066~eFBOxZCNt0506505065euoutp011 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1791891776; bh=Q9aqMDODe600BFm8D61Dvnouj+6fVW9MMKyx7NIsysw=; h=Date:Subject:To:Cc:From:In-Reply-To:References:From; b=QiQ+ZZL4DOyVlsSJovFzb1XiCOM/4TnpHoRjojfXPD6vpOv0PEdAtOIeCtI4V+RhW p7rc8Wa50YHaXCnZXqqKHYfEtV+IZxG762XRV1obJrIHrLlXHAMIYaugnPJ7/2lnhA Bbb+PFKIRLtl5VvDsM+i52K0kISioy9xLhDWyMqQ= Received: from eusmtip2.samsung.com (unknown [203.254.199.222]) by eucas1p1.samsung.com (KnoxPortal) with ESMTPA id 20261013114256eucas1p16397bdcc2581199fc88c07ed85140cda~eFBOZ9TQG2531425314eucas1p1O; Tue, 13 Oct 2026 11:42:56 +0000 (GMT) Received: from [106.210.134.192] (unknown [106.210.134.192]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20261013114255eusmtip205abe02f05a4bd61c6ad22500639b211~eFBNseO-R2337123371eusmtip2F; Tue, 13 Oct 2026 11:42:55 +0000 (GMT) Message-ID: <6b66c6fb-14d2-4d71-b638-59e7595e4896@samsung.com> Date: Tue, 13 Oct 2026 13:42:54 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Betterbird (Windows) Subject: Re: [PATCH] tools/dma: fix building from the top level with O= To: Sasha Levin , Barry Song , Qinxin Xia Cc: stable@vger.kernel.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Content-Language: en-US From: Marek Szyprowski In-Reply-To: <20261011223358.2327625-4-sashal@kernel.org> Content-Transfer-Encoding: 7bit X-CMS-MailID: 20261013114256eucas1p16397bdcc2581199fc88c07ed85140cda X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20261011223410eucas1p1db84283e5fc98bfb7d0bdeff84fd1a7c X-EPHeader: CA X-CMS-RootMailID: 20261011223410eucas1p1db84283e5fc98bfb7d0bdeff84fd1a7c References: <20261011223358.2327625-4-sashal@kernel.org> On 12.10.2026 00:33, Sasha Levin wrote: > "make O= tools/dma" fails: > > Makefile:27: /tools/build/Makefile.include: No such file or directory > > tools/Makefile clears srctree, and the dma Makefile only works it out > again when building_out_of_srctree is not set, which the top-level > Makefile sets for O= builds. > > Also work out srctree when it is empty, as tools/bpf/Makefile does > since commit a89b2cbf71d64 ("tools, bpf: Fix build for 'make -s > tools/bpf O='"). > > Fixes: f74ee32963f1b ("tools/dma: move dma_map_benchmark from selftests to tools/dma") > Cc: stable@vger.kernel.org > Assisted-by: LLM > Signed-off-by: Sasha Levin Applied to dma-mapping-for-next. Thanks! Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland