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 96DA1223C5C; Thu, 12 Dec 2024 16:48:16 +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=1734022096; cv=none; b=hB2m+Iur/hXb72cn6eoRWyTNYZI0uB9xYCrDLgm0n/VQxQMjyNZ9rPg5BK3oFztrlsN6N52gXICO0Yh9Tc3aBJ26DeJbEej8GSqUJGoKPhvbVj89oMZmamrvS8RZZwGLb2YOq/LVKFzZLnXTSTzwWZ563PI06mEjeeTUDHMD8RE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734022096; c=relaxed/simple; bh=APiqJdYft0CPHW1tPdp2fan22Q/YUYWxu1USZ6yAFIQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Kzqce5Lpb+okWRX1XCOaAv5NKwYOYNyr7NLJlUhby5D69JI8bCDp9Z1tzgz9z9GiF2IJ7e5Pk2i5AL2YERzohtwXbt598omtM2HNW9ERz/4+B9GBD9PNE393yzngH1Kggrc+AcdoKd6m5526GeoVAaI0457vBuRnux5i1/kn8dY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gY8vXET9; 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="gY8vXET9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05B7FC4CECE; Thu, 12 Dec 2024 16:48:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734022096; bh=APiqJdYft0CPHW1tPdp2fan22Q/YUYWxu1USZ6yAFIQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gY8vXET9ZZmCwuTspcnuSw9nt8aiZ5fjz15OXIydnk7ZYxvdyeiYFyK8B8FYY3/Oy QxsRWRr0VMlr4Y81GGlkqqI/CIHUHSwkBBXSlX2zLMaM5/sruFzHTtbnGzzBqFuJ7+ zrV6m3KDH2SZutFdSizuNirquURGESJYuxdpMLnQ= 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 5.15 146/565] drm/mm: Mark drm_mm_interval_tree*() functions with __maybe_unused Date: Thu, 12 Dec 2024 15:55:41 +0100 Message-ID: <20241212144317.259894049@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241212144311.432886635@linuxfoundation.org> References: <20241212144311.432886635@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 5.15-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 93d48a6f04abe..ddbd3ad9f7113 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -154,7 +154,7 @@ 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