From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: [PATCH 0/4] module: add support for unsafe, tainting parameters Date: Mon, 11 Aug 2014 16:52:18 +0300 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 2026E6E216 for ; Mon, 11 Aug 2014 06:54:34 -0700 (PDT) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org Cc: Li Zhong , jani.nikula@intel.com, Daniel Vetter , Rusty Russell , Jean Delvare , Andrew Morton , Jon Mason List-Id: intel-gfx@lists.freedesktop.org This is a generic version of Daniel's patch [1] letting us have unsafe module parameters (experimental, debugging, testing, etc.) that taint the kernel when set. Quoting Daniel, """ Users just love to set random piles of options since surely enabling all the experimental stuff helps. Later on we get bug reports because it all fell apart. Even more fun when it's labelled a regression when some change only just made the feature possible (e.g. stolen memory fixes suddenly making fbc possible). Make it clear that users are playing with fire here. """ Patches 1-3 add the core functionality, patch 4 is our use case as an example. BR, Jani. [1] http://lkml.kernel.org/r/1394011994-30604-1-git-send-email-daniel.vetter@ffwll.ch Jani Nikula (4): module: rename KERNEL_PARAM_FL_NOARG to avoid confusion module: make it possible to have unsafe, tainting module params module: add module_param_unsafe and module_param_named_unsafe drm/i915: taint the kernel if unsafe module parameters are set drivers/gpu/drm/i915/i915_params.c | 8 ++--- drivers/tty/serial/8250/8250_core.c | 2 +- include/linux/moduleparam.h | 64 +++++++++++++++++++++++++++++++------ kernel/module.c | 2 +- kernel/params.c | 17 ++++++++-- security/apparmor/lsm.c | 4 +-- 6 files changed, 76 insertions(+), 21 deletions(-) -- 1.9.1