From nobody Tue Dec 16 11:05:13 2025 Received: from 009.lax.mailroute.net (009.lax.mailroute.net [199.89.1.12]) (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 4431119C553 for ; Thu, 6 Feb 2025 17:52:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.1.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738864381; cv=none; b=PdCjGEtwAMbGhs4PxPn1e/0dvv9fvr8kcDSY2vI/Qpn6zacZ2VcVGzNHzdR/EN/EXbCQB3/QmOpi/dxivV+LKEbneyBmt/VBs9682QhnLseLoi8Jk80Jm2bgEMmEhZn4L06l1vbcedWh5Qez+oARwBtZlMixKE6ch3lgkdwTWfk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738864381; c=relaxed/simple; bh=VTS1Xqm6xOD646+JjW+PwAhdk794DP9lC6s0EyNlT3E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OgyZCBULeQmioF+z4iyyDBQrLDAyFdxQ3R/f+rtfd17BltPAhk6vT5fBgwSSmxl+WExlujOUyhDopuI2NHPyeiW3hCTL2EaBNBOHvlOFO8kONXixNvZVEGleVvsHSq6kyEVlnU/uwfG3IzOan58g/i9YTTML4TKrVy/CD7+YPvE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=JFKACATQ; arc=none smtp.client-ip=199.89.1.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="JFKACATQ" Received: from localhost (localhost [127.0.0.1]) by 009.lax.mailroute.net (Postfix) with ESMTP id 4Ypl7b5XbNzlgTxg; Thu, 6 Feb 2025 17:52:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:mime-version:references:in-reply-to :x-mailer:message-id:date:date:subject:subject:from:from :received:received; s=mr01; t=1738864374; x=1741456375; bh=d6n+k LpRjFHnf0pZY+IpQVKiY3FWXhXDHuKsIqw3PBQ=; b=JFKACATQfmZMQsc6DfZhJ U6A/Btrjj+X318E8zzYpjRZJVHSHPsMAz+jJE7fh4CIHl183o9xRjuXpyByrp9QM VHJFpQF4H4SNvZPqyJXgQxUdPmYtgMlq6/Pd6ea8hW/qecAurUksbb5agcX8yquR Qf0VEw4k9YIAtcqZfF5jHCZIWUc+2PbbjNOu6cQr9LCDgW8Ahisw7+pY3WUowj9y HY8Kg5nne4p+L0T1EqmgdUG4tz87FpMfnXLR152Qe9Jch+6i0C66pl2udTD/VJvZ PF5T4uPG8rs6emqU+2AbTD7qy3JorZ7Qgvxt1Ng4NzsPOcjuxQx809SWN5GB0t7o A== X-Virus-Scanned: by MailRoute Received: from 009.lax.mailroute.net ([127.0.0.1]) by localhost (009.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id 6zEzgGXtcD3a; Thu, 6 Feb 2025 17:52:54 +0000 (UTC) Received: from bvanassche.mtv.corp.google.com (unknown [104.135.204.82]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 009.lax.mailroute.net (Postfix) with ESMTPSA id 4Ypl7R397fzlgTy5; Thu, 6 Feb 2025 17:52:51 +0000 (UTC) From: Bart Van Assche To: Peter Zijlstra Cc: Will Deacon , Christoph Hellwig , Greg Kroah-Hartman , Marco Elver , Nick Desaulniers , Nathan Chancellor , Kees Cook , Jann Horn , linux-kernel@vger.kernel.org, Bart Van Assche , Bill Wendling , Justin Stitt Subject: [PATCH RFC 33/33] kbuild: clang: Unconditionally enable thread-safety checking Date: Thu, 6 Feb 2025 09:51:14 -0800 Message-ID: <20250206175114.1974171-34-bvanassche@acm.org> X-Mailer: git-send-email 2.48.1.502.g6dc24dfdaf-goog In-Reply-To: <20250206175114.1974171-1-bvanassche@acm.org> References: <20250206175114.1974171-1-bvanassche@acm.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Enable thread-safety checks for arm64 and x86. Do not enable it for other architectures yet - this will be done later. Disable thread-safety checking for staging drivers. Fixing thread-safety bugs in staging drivers will have to be done when these drivers come out of staging. Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Bill Wendling Cc: Justin Stitt Cc: Greg Kroah-Hartman Signed-off-by: Bart Van Assche --- drivers/staging/Makefile | 2 ++ scripts/Makefile.clang | 3 +++ 2 files changed, 5 insertions(+) diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile index e681e403509c..4eafda5b95eb 100644 --- a/drivers/staging/Makefile +++ b/drivers/staging/Makefile @@ -1,6 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 # Makefile for staging directory =20 +KBUILD_CFLAGS +=3D -Wno-thread-safety + obj-y +=3D media/ obj-$(CONFIG_RTL8723BS) +=3D rtl8723bs/ obj-$(CONFIG_OCTEON_ETHERNET) +=3D octeon/ diff --git a/scripts/Makefile.clang b/scripts/Makefile.clang index 2435efae67f5..d27688bddd95 100644 --- a/scripts/Makefile.clang +++ b/scripts/Makefile.clang @@ -36,5 +36,8 @@ CLANG_FLAGS +=3D -Werror=3Dunknown-warning-option CLANG_FLAGS +=3D -Werror=3Dignored-optimization-argument CLANG_FLAGS +=3D -Werror=3Doption-ignored CLANG_FLAGS +=3D -Werror=3Dunused-command-line-argument + +CLANG_FLAGS +=3D -Wthread-safety + KBUILD_CPPFLAGS +=3D $(CLANG_FLAGS) export CLANG_FLAGS