From mboxrd@z Thu Jan 1 00:00:00 1970 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 2138623E324; Mon, 19 May 2025 21:23:16 +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=1747689796; cv=none; b=p7KWthxQt+uN7iEljYP0G5y98KU8le916TMQ4z3lqrXfIKuqnWoycXmUFpLS+5+iO08K6Z9JGg2pBAAkeLGM7jxqRXjvSI/zoHNMnGqeHoC+H1UWUHyxpH1XYseHQEu7JUShl7xRrq2YIDhh5Zs51vluQdc8rTFIRWX512OJf2c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747689796; c=relaxed/simple; bh=01V2kp9PR7OuzoxgYCqNxryI2MMU4E7MhSbRS54NI7A=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=UU8a+fTezo+Q3tfSu6fh3MGSjR2R/V2m1Pt5lG66Hdj3+8b6VGp/OpGdXG8BeWb2r0hsL+LVUNNLpDK8WC2KYrRAgc/7WtEynPDABr6LYk1KD5dTndVWJGZRUzo8Jmia7sddMZ94/1MLqdNtRrKO4EiXA3qfQ/my3p+nSCVMKkE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=T/sDpt9E; 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="T/sDpt9E" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B11E5C4CEED; Mon, 19 May 2025 21:23:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747689796; bh=01V2kp9PR7OuzoxgYCqNxryI2MMU4E7MhSbRS54NI7A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T/sDpt9EARXbj9sgQ9sZu/80cXKnT95njuh+msu2/mXg18P7CUlDUUiGz5mPmU2rk EGzHR0AEMXpnD1eQmgabprd9I1OiS1Yp/FWrFIJdjbBdjxz1Jk8qwwjNNdfTyJFhSM vI7IUF2fIdqgl94dF0TI2xl0T2hlb0v6yipt+k54MeItauXXuT2AcBP75KUogH4dsy TDV+HK+QOwTf8mJqOPX9PEG2k0/1xjiKw7ZM4Q8w8iGqY87qre0lxg03TCdoS/Hz4X uxprMqZDJa8SwKMXvkHi69OjZ3kITxWfBDSm9oMqPdMv9PgZMaEd1umAUM8mHBb17J U90cWfMEir5sg== From: Sasha Levin To: patches@lists.linux.dev, stable@vger.kernel.org Cc: Masahiro Yamada , Shuah Khan , Johannes Berg , David Gow , Sasha Levin , jdike@addtoit.com, richard@nod.at, anton.ivanov@cambridgegreys.com, linux-um@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 4/7] um: let 'make clean' properly clean underlying SUBARCH as well Date: Mon, 19 May 2025 17:23:05 -0400 Message-Id: <20250519212308.1986645-4-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250519212308.1986645-1-sashal@kernel.org> References: <20250519212308.1986645-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.183 Content-Transfer-Encoding: 8bit From: Masahiro Yamada [ Upstream commit ab09da75700e9d25c7dfbc7f7934920beb5e39b9 ] Building the kernel with O= is affected by stale in-tree build artifacts. So, if the source tree is not clean, Kbuild displays the following: $ make ARCH=um O=build defconfig make[1]: Entering directory '/.../linux/build' *** *** The source tree is not clean, please run 'make ARCH=um mrproper' *** in /.../linux *** make[2]: *** [/.../linux/Makefile:673: outputmakefile] Error 1 make[1]: *** [/.../linux/Makefile:248: __sub-make] Error 2 make[1]: Leaving directory '/.../linux/build' make: *** [Makefile:248: __sub-make] Error 2 Usually, running 'make mrproper' is sufficient for cleaning the source tree for out-of-tree builds. However, building UML generates build artifacts not only in arch/um/, but also in the SUBARCH directory (i.e., arch/x86/). If in-tree stale files remain under arch/x86/, Kbuild will reuse them instead of creating new ones under the specified build directory. This commit makes 'make ARCH=um clean' recurse into the SUBARCH directory. Reported-by: Shuah Khan Closes: https://lore.kernel.org/lkml/20250502172459.14175-1-skhan@linuxfoundation.org/ Signed-off-by: Masahiro Yamada Acked-by: Johannes Berg Reviewed-by: David Gow Reviewed-by: Shuah Khan Signed-off-by: Sasha Levin --- arch/um/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/um/Makefile b/arch/um/Makefile index 3dbd0e3b660ea..1257ef03d1b7a 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -153,5 +153,6 @@ MRPROPER_FILES += $(HOST_DIR)/include/generated archclean: @find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \ -o -name '*.gcov' \) -type f -print | xargs rm -f + $(Q)$(MAKE) -f $(srctree)/Makefile ARCH=$(HEADER_ARCH) clean export HEADER_ARCH SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS DEV_NULL_PATH -- 2.39.5