From nobody Sat Feb 7 08:28:06 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 1905576026; Sat, 31 Jan 2026 15:02:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769871760; cv=none; b=TYxbXKEqvDJ0x64JhI79ViUzLjUmzz8DBAzWV5DJ1lhM2A8taovZir9AYqgIsqLjRH1PnfDWqDwRscVOyiLJ3ESMDOAV8A0OG69KQGmShkbltyxk1WtKHQm463TJ6A3MV2vbabo0/C3KBVHtqQG/tHgpHH0aTYf7I7bAjBeydUY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769871760; c=relaxed/simple; bh=evR7J1cgRygUP/vp6mbLTdnFKPRUX/a0xZWUlakiNQQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=AGUyZDxDWDpRa9vM3w9tEkiNUDDPcnB7lV3pwNM94WV7Ex455Pkh50kadqfCPKFBTAYMY7VAgG/yNxiJ3VIAyc3AFR6K0ep0UpoF1Mg8nmmJEFmPxHCOV6zgFNr4y3/KVFFilmg8EUsQC93oMK0ikfxdL60BSMM1Q8tNE9CfjE0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hXzxeNNk; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hXzxeNNk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 18A56C4CEF1; Sat, 31 Jan 2026 15:02:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769871759; bh=evR7J1cgRygUP/vp6mbLTdnFKPRUX/a0xZWUlakiNQQ=; h=From:Date:Subject:To:Cc:From; b=hXzxeNNkn6ZDr3E9Ovt3e0lGG5jG7lt+Q2LtvEIk2IZFfmiFYXDVhVtPrg8Q6KRfp oGGaTczv3yygP1KXwQEE+e+v5CqhQfBsFLfFAJ8gSxuhTMdHH10WLUPr7sCSTRBsGE z22xtjb72kM+btRpJpgExhT/f5qAOaX1ehEBbRIV59+Dz94azn2HAAmsWm12ZEa1iQ lsUVF3hLqVKlThXwXOn9tF3/dBvq3um4rzSYMrdXzTXTlpDYfwQnrC+YEmBv29LDqW s6E+S4QJXISGudEmPlm+KXtiaCZqVMQlNQZSBRkTnTw+4JyDRLSNtwAcrmRzlFcmiG jZKEbckeZ2g1g== From: Nicolas Schier Date: Sat, 31 Jan 2026 16:02:32 +0100 Subject: [PATCH] kbuild: Run kernel-doc only for in-tree builds Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260131-run-kernel-doc-only-in-tree-v1-1-93a9c695dfb1@kernel.org> X-B4-Tracking: v=1; b=H4sIAIcZfmkC/x3NQQrCMBBG4auUWTuQRNDBq4gLbX/tYJnIpBVLy d2NLr/NexsVuKLQqdvI8dai2RrirqN+vNoDrEMzpZAOIe4j+2L8hBsmHnLP2aaV1Xh2gKPcIEe IpCDUCi/HXT//+vnSPGqZs6+/Wa31C7cVBq18AAAA X-Change-ID: 20260131-run-kernel-doc-only-in-tree-18be87e88208 To: Nathan Chancellor , Jonathan Corbet , Nicolas Schier Cc: Mauro Carvalho Chehab , Rong Zhang , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2291; i=nsc@kernel.org; s=20250924; h=from:subject:message-id; bh=evR7J1cgRygUP/vp6mbLTdnFKPRUX/a0xZWUlakiNQQ=; b=owEBbQKS/ZANAwAKAQdSCnAWJhJpAcsmYgBpfhmID1QaN9RoqpmqJs+ZfdJXiaJV/0wtAv/P8 vFy1IucEdOJAjMEAAEKAB0WIQSHQTenhzckp4G+wsYHUgpwFiYSaQUCaX4ZiAAKCRAHUgpwFiYS aYqMEAC7uAKSIKaXkBYfWmLwWIhtyzPG3QAdUAdZxQ8w+yAnSJs9m5/BeM7w1Fb199gIMRkwBlZ FX0hVnhVFj4OY44uMXaMGAMn4gQt8+Z5VSgsLDVsQGKeufQROpnOcbyNoo3vbGVH9vU8Cer3Cvf 26kF2hv6DLNq+Rx2tpBIilk51dWqiqHq1/G7nBukAwDhRvqWBQGgs1vjcvSsjOJkEdMqBCefXiw fBeH7LO1n8Gp7Q+Wo7eM1jl3teFS1cdwlWdwBuFYuuDKBy+/teR1cXlXyUopSrontfzL/jGctMZ rckubJnCfhABZt5nZh2nG/zwTzEoEUlFZc494J9ma7HM8RgqDlPT4yhksbhteLqEXi07SQCYQHN OspAb5HttoVZPjBLi6asN90S4sWJ5yvor43io3KLomxgLIJUiEzaHPQcVCaGwolJNUiVd9EI01l 5i1DDzlrLugkOfkiJLWHwz3A4uMXxy3LsZThNS1kL1CPYEtSbCOI4eIkPDu61g/pnO/BlrBLoM7 HwQWXTLa4DR0HfIwYqmCvP3XNk1Zn98S+vRvtjMFNg0HmaowIWsYgnFn2CuYCAjaxLd7SzcwW+g cNOG4Adgc+tZqEV0vWcISeLYIk+vTnthen/L2I+55H0lud36Ta3N7sBz9VxjnqxAwMrs668p2Yf 8q7EQgxYhQ1GgSQ== X-Developer-Key: i=nsc@kernel.org; a=openpgp; fpr=18ED52DBE34F860EE9FBC82B7D97093255A0CE7F Stop running kernel-doc when building out-of-tree kernel modules. Rong Zhang reported that building external modules with W set fails since v6.19-rc1 as the kernel-doc Python modules are no more available when building against a kernel module build tree exported by scripts/package/install-extmod-build. As there is no good reason for checking documentation when building out-of-tree kernel modules, stop it. Fixes: 778b8ebe5192 ("docs: Move the python libraries to tools/lib/python") Reported-by: Rong Zhang Closes: https://lore.kernel.org/linux-kbuild/20260129175321.415295-1-i@rong= .moe Suggested-by: Mauro Carvalho Chehab Reviewed-by: Mauro Carvalho Chehab Tested-by: Nicolas Schier Signed-off-by: Nicolas Schier --- I left out a 'Cc: stable@kernel.org' as the problem exists just since v6.19-rc1; please intervene ASAP if you think it should be added. --- --- Thanks for the report (Rong) and the patch suggestion (Mauro)! I left out a 'Cc: stable@kernel.org' as the problem exists just since 6.19-rc1; please intervene ASAP if you think it should be added. --- scripts/Makefile.build | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 5037f4715d7491761b75d086441367c6c08c099e..05674bae3c637b4476a11b5e6af= 630d8daa3b613 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -166,10 +166,12 @@ else ifeq ($(KBUILD_CHECKSRC),2) cmd_force_checksrc =3D $(CHECK) $(CHECKFLAGS) $(c_flags) $< endif =20 -ifneq ($(KBUILD_EXTRA_WARN),) - cmd_checkdoc =3D PYTHONDONTWRITEBYTECODE=3D1 $(PYTHON3) $(KERNELDOC) -no= ne $(KDOCFLAGS) \ - $(if $(findstring 2, $(KBUILD_EXTRA_WARN)), -Wall) \ - $< +ifeq ($(KBUILD_EXTMOD),) + ifneq ($(KBUILD_EXTRA_WARN),) + cmd_checkdoc =3D PYTHONDONTWRITEBYTECODE=3D1 $(PYTHON3) $(KERNELDOC)= -none $(KDOCFLAGS) \ + $(if $(findstring 2, $(KBUILD_EXTRA_WARN)), -Wall) \ + $< + endif endif =20 # Compile C sources (.c) --- base-commit: 6d60354ea2f90352b22039ed8371c4f4321df90e change-id: 20260131-run-kernel-doc-only-in-tree-18be87e88208 Best regards, --=20 Nicolas