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 06236149C69; Fri, 6 Dec 2024 14:56:29 +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=1733496989; cv=none; b=s0z8gA4Hyhv+YyoVSKZ+IpaXs21iF18B66FkRLCy0kl3JKfpIpWfV4ZX61DduTz+N5CkswcUP/PQi7X9tqhg6LAUo+87RNTgWJdf7AEy2wRKhjA3ZsYUYI2GOg6NgQiFA0+bIhVQyd745E0zioaEeoPgIhFWb6NEEnnuqDTNZTk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733496989; c=relaxed/simple; bh=2t59jc3rHSgjj/iARvd6Z+l8VpTXj3CB6p+hxrqc2iI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cL2ZwONUcHh8Xv6sF3iZCottYqhhxyhLf8fcq7FppzZWujvEDcO4OvVdHKl3KUD0df99m98Foqc1RoIy98J/rcbfuXaarQFw3jpzUecRMsLxJLgv2/0iRqPzrTjcVcrM6muX7byyyIUUs0EFPBwD4dcCFvwkL08UO1nmwICRmSI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=vFwBk8a5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="vFwBk8a5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 69548C4CED1; Fri, 6 Dec 2024 14:56:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1733496988; bh=2t59jc3rHSgjj/iARvd6Z+l8VpTXj3CB6p+hxrqc2iI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vFwBk8a57zJVNfauNEdVZ3b8as04QjEGznwDxHLDhbC2xrMPt10w6gJPwUVcgDDnx OFCYUujAx7M4D9BxSgeOEFLvy7Ju54dLELGpMgXX4aY7ulL6q4mu0qdIcoA/Kh4O5G pGOPi4q9BDvCAJIQfASReVbiFjYmbPOhO7TwZ5Ww= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Andy Shevchenko , Jani Nikula , Sasha Levin Subject: [PATCH 6.6 164/676] drm/mm: Mark drm_mm_interval_tree*() functions with __maybe_unused Date: Fri, 6 Dec 2024 15:29:43 +0100 Message-ID: <20241206143659.758649102@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241206143653.344873888@linuxfoundation.org> References: <20241206143653.344873888@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andy Shevchenko [ Upstream commit 53bd7c1c0077db533472ae32799157758302ef48 ] The INTERVAL_TREE_DEFINE() uncoditionally provides a bunch of helper functions which in some cases may be not used. This, in particular, prevents kernel builds with clang, `make W=1` and CONFIG_WERROR=y: .../drm/drm_mm.c:152:1: error: unused function 'drm_mm_interval_tree_insert' [-Werror,-Wunused-function] 152 | INTERVAL_TREE_DEFINE(struct drm_mm_node, rb, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 153 | u64, __subtree_last, | ~~~~~~~~~~~~~~~~~~~~ 154 | START, LAST, static inline, drm_mm_interval_tree) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by marking drm_mm_interval_tree*() functions with __maybe_unused. See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static inline functions for W=1 build"). Fixes: 202b52b7fbf7 ("drm: Track drm_mm nodes with an interval tree") Signed-off-by: Andy Shevchenko Reviewed-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20240829154640.1120050-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jani Nikula Signed-off-by: Sasha Levin --- drivers/gpu/drm/drm_mm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 8257f9d4f6190..22a373eaffefd 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -151,7 +151,7 @@ static void show_leaks(struct drm_mm *mm) { } INTERVAL_TREE_DEFINE(struct drm_mm_node, rb, u64, __subtree_last, - START, LAST, static inline, drm_mm_interval_tree) + START, LAST, static inline __maybe_unused, drm_mm_interval_tree) struct drm_mm_node * __drm_mm_interval_first(const struct drm_mm *mm, u64 start, u64 last) -- 2.43.0