From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpbg154.qq.com (smtpbg154.qq.com [15.184.224.54]) (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 E7ECD2E83F for ; Wed, 28 Feb 2024 08:58:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=15.184.224.54 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709110742; cv=none; b=s9neoApQuEMrKjZ4TvwyTAwvmIkF+Ylt7IqLLYF9iHKUxNDWJT8hJjJ+rkUXx3qoZmWhWUo7ysppC49j3XMjHccEE8ztrMIwV8kWD0DlgQNr4ZA2Cr/hkCr5CmEj8pWvoZFBlrlHH3Tmb41/YRgME0egBdtgLfyjgdTbWLIOh8s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709110742; c=relaxed/simple; bh=RDvcBlVuIemwLM4J03ulD1eFMdgG9/KmMg5CARU8pQI=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=qajf8JX1q2OxiQvffu4EJgpNOLhDe5Pc17PSItI7sOqGpmbM+ArhTnRLUWpYbtm4K5VHeuP5QccAYPw76eYTN93jLmm3Fi5muYKUDWk6eYH9x2NP2Lhk+JfEs3WJQ0xkQ+ZXzFFIuhzknY3sIWCy+j599xf+ehKf8ilLCz98m6w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=shingroup.cn; spf=pass smtp.mailfrom=shingroup.cn; arc=none smtp.client-ip=15.184.224.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=shingroup.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=shingroup.cn X-QQ-mid: bizesmtp81t1709110713tb5brp7v X-QQ-Originating-IP: RMFuvulrkTTkIP3veOx5DZWOUzbPAQR7RNVNIZjsZAQ= Received: from localhost ( [112.22.30.30]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 28 Feb 2024 16:58:32 +0800 (CST) X-QQ-SSF: 01400000000000505000000F0000000 X-QQ-FEAT: LE7C6P2vL8S2AsPvDMxMsvXF+uR7nFYwkxu3h1ZViKpA2gYns/FH84WdcCO1m A9y5Xklv7vi7WpLi05dx2fTfkPNHUtslCmUkh8VaAlXr/Mii1L24lZiIeEU9GgBwu6ELmCG Yp5eXgQrWF0h58L+WEaKuboRvZ+2LRlqIodEp8+BtmTqkafTgd/TXC3agtGlM2GfwTrERLM OoIyX6cYvGPkf4DuxsRzACF2+g97DyrnC61htmVfL15IU/w8GA4ePV9H1ypPGpUnAKbdP9h /Bx1Ls+WojIKWMFGG6YA+C38tNgymkK3XcUJ4pssb6XWERXJDQpD1ywHAjw15wnTcZoMrpk FRvfTz+5rwdZWgxsF95DFA4zg4XfU82GpMYXCgUVZGshWi8imujDYYXN0Jwn1dIXCKOlJDt X-QQ-GoodBg: 2 X-BIZMAIL-ID: 16178612125370400260 From: Dawei Li To: geert@linux-m68k.org Cc: gerg@snapgear.com, linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org, set_pte_at@outlook.com, Dawei Li , stable@vger.kernel.org Subject: [PATCH] mk68k: Fix broken THREAD_SIZE_ORDER Date: Wed, 28 Feb 2024 16:58:24 +0800 Message-Id: <20240228085824.74639-1-dawei.li@shingroup.cn> X-Mailer: git-send-email 2.27.0 Precedence: bulk X-Mailing-List: linux-m68k@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:shingroup.cn:qybglogicsvrgz:qybglogicsvrgz5a-1 Current THREAD_SIZE_ORDER implementation for m68k is incorrect, fix it by ilog2(). Fixes: cddafa3500fd ("m68k/m68knommu: merge MMU and non-MMU thread_info.h") Signed-off-by: Dawei Li Cc: stable@vger.kernel.org --- arch/m68k/include/asm/thread_info.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h index 31be2ad999ca..50faecd6fc5f 100644 --- a/arch/m68k/include/asm/thread_info.h +++ b/arch/m68k/include/asm/thread_info.h @@ -19,7 +19,8 @@ #else #define THREAD_SIZE PAGE_SIZE #endif -#define THREAD_SIZE_ORDER ((THREAD_SIZE / PAGE_SIZE) - 1) + +#define THREAD_SIZE_ORDER ilog2(THREAD_SIZE / PAGE_SIZE) #ifndef __ASSEMBLY__ -- 2.27.0