From patchwork Wed Mar 6 18:31:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 13584515 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BF61BC5475B for ; Wed, 6 Mar 2024 18:33:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EDA9E113455; Wed, 6 Mar 2024 18:33:28 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="P2uSZj47"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id BAC3B11344A; Wed, 6 Mar 2024 18:33:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709750005; x=1741286005; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4ZK7ytZ6+eBUdeS0KJgTV+/J3pXqIY/fgoKxUZW/rVc=; b=P2uSZj47wLB3oOotfPQGWwmUjOarXvTuXyOm7XrvYT4m4gO9CnlApOQc Qd/EDPlxHd0uV3qTAehDuU4Vxp5Wa6djyFO0H68q8xAakbFUR0BSW1RKW w2iNp70ml6wH8TJCbYv0geFay8fjXZ+H6pU+uq3oDEYEpuJWmsGGp4XKk 0i96KnPDTCbw5OUUYes3PWX1UkDm/VYYci2ql6OwaWr+dr21vwIxVKfvl 0cBfdAQnf3xJ9Qks5dkO0rahD1meWTXgLbqwrk4r5feSiJsLXF2nC24lC 5LCUySs7Vr2TY9OhZ7XvBWK/hGNNYTRcrBfyDFXE2AcYi5EDZhelqvgbZ A==; X-IronPort-AV: E=McAfee;i="6600,9927,11005"; a="15102892" X-IronPort-AV: E=Sophos;i="6.06,209,1705392000"; d="scan'208";a="15102892" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2024 10:33:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,209,1705392000"; d="scan'208";a="9989580" Received: from rjongalo-mobl2.ger.corp.intel.com (HELO localhost) ([10.252.33.211]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2024 10:33:21 -0800 From: Jani Nikula To: dri-devel@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, jani.nikula@intel.com, Daniel Vetter , David Airlie , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Masahiro Yamada Subject: [PATCH 22/22] drm: ensure drm headers are self-contained and pass kernel-doc Date: Wed, 6 Mar 2024 20:31:27 +0200 Message-Id: X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Ensure drm headers build, are self-contained, have header guards, and have no kernel-doc warnings, when CONFIG_DRM_HEADER_TEST=y. The mechanism follows similar patters used in i915, xe, and usr/include. To cover include/drm, we need to recurse there using the top level Kbuild and the new include/Kbuild files. Suggested-by: Daniel Vetter Cc: David Airlie Cc: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Thomas Zimmermann Cc: Masahiro Yamada Signed-off-by: Jani Nikula --- Kbuild | 1 + drivers/gpu/drm/Kconfig | 11 +++++++++++ drivers/gpu/drm/Makefile | 18 ++++++++++++++++++ include/Kbuild | 1 + include/drm/Makefile | 18 ++++++++++++++++++ 5 files changed, 49 insertions(+) create mode 100644 include/Kbuild create mode 100644 include/drm/Makefile diff --git a/Kbuild b/Kbuild index 464b34a08f51..f327ca86990c 100644 --- a/Kbuild +++ b/Kbuild @@ -97,3 +97,4 @@ obj-$(CONFIG_SAMPLES) += samples/ obj-$(CONFIG_NET) += net/ obj-y += virt/ obj-y += $(ARCH_DRIVERS) +obj-$(CONFIG_DRM_HEADER_TEST) += include/ diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index c08e18108c2a..dd17685ef6e7 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -429,3 +429,14 @@ config DRM_WERROR this config option is disabled by default. If in doubt, say N. + +config DRM_HEADER_TEST + bool "Ensure DRM headers are self-contained and pass kernel-doc" + depends on EXPERT + default n + help + Ensure the DRM subsystem headers both under drivers/gpu/drm and + include/drm compile, are self-contained, have header guards, and have + no kernel-doc warnings. + + If in doubt, say N. diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index a73c04d2d7a3..6605d5686d01 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -218,3 +218,21 @@ obj-y += solomon/ obj-$(CONFIG_DRM_SPRD) += sprd/ obj-$(CONFIG_DRM_LOONGSON) += loongson/ obj-$(CONFIG_DRM_POWERVR) += imagination/ + +# Ensure drm headers are self-contained and pass kernel-doc +hdrtest-files := \ + $(shell cd $(srctree)/$(src) && find . -maxdepth 1 -name 'drm_*.h') \ + $(shell cd $(srctree)/$(src) && find display lib -name '*.h') + +always-$(CONFIG_DRM_HEADER_TEST) += \ + $(patsubst %.h,%.hdrtest, $(hdrtest-files)) + +# Include the header twice to detect missing include guard. +quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@) + cmd_hdrtest = \ + $(CC) $(c_flags) -fsyntax-only -x c /dev/null -include $< -include $<; \ + $(srctree)/scripts/kernel-doc -none $(if $(CONFIG_DRM_WERROR),-Werror) $<; \ + touch $@ + +$(obj)/%.hdrtest: $(src)/%.h FORCE + $(call if_changed_dep,hdrtest) diff --git a/include/Kbuild b/include/Kbuild new file mode 100644 index 000000000000..5e76a599e2dd --- /dev/null +++ b/include/Kbuild @@ -0,0 +1 @@ +obj-$(CONFIG_DRM_HEADER_TEST) += drm/ diff --git a/include/drm/Makefile b/include/drm/Makefile new file mode 100644 index 000000000000..b9f391d7aadd --- /dev/null +++ b/include/drm/Makefile @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0 + +# Ensure drm headers are self-contained and pass kernel-doc +hdrtest-files := \ + $(shell cd $(srctree)/$(src) && find * -name '*.h' 2>/dev/null) + +always-$(CONFIG_DRM_HEADER_TEST) += \ + $(patsubst %.h,%.hdrtest, $(hdrtest-files)) + +# Include the header twice to detect missing include guard. +quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@) + cmd_hdrtest = \ + $(CC) $(c_flags) -fsyntax-only -x c /dev/null -include $< -include $<; \ + $(srctree)/scripts/kernel-doc -none $(if $(CONFIG_DRM_WERROR),-Werror) $<; \ + touch $@ + +$(obj)/%.hdrtest: $(src)/%.h FORCE + $(call if_changed_dep,hdrtest)