From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9688FC072A2 for ; Wed, 15 Nov 2023 20:58:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344896AbjKOU6v (ORCPT ); Wed, 15 Nov 2023 15:58:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344707AbjKOU5o (ORCPT ); Wed, 15 Nov 2023 15:57:44 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BDF1119B6 for ; Wed, 15 Nov 2023 12:57:30 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6628CC4E750; Wed, 15 Nov 2023 20:51:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700081494; bh=+MSWwg5lpkZX5JkgPSsn0ITXmce2scm620kNeR9ygAI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1bb2eOm2HAuF70Cp7BGqy6R8lcn13PzWT8iBqDkWneFU28rCmeQHWtiOonxwkj640 2WNUzO016NCKz0JmwB1EGUayaF/Frxwrax3RbYE3nfxqZd1nfrKzme2kFoR0BT/j4Z E6uFDw8QgYLQ9MmYtnejykQ320/gbS7c0AhgVj0k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Benjamin Gray , Michael Ellerman , Sasha Levin Subject: [PATCH 5.15 187/244] powerpc/xive: Fix endian conversion size Date: Wed, 15 Nov 2023 15:36:19 -0500 Message-ID: <20231115203559.561833919@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115203548.387164783@linuxfoundation.org> References: <20231115203548.387164783@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Benjamin Gray [ Upstream commit ff7a60ab1e065257a0e467c13b519f4debcd7fcf ] Sparse reports a size mismatch in the endian swap. The Opal implementation[1] passes the value as a __be64, and the receiving variable out_qsize is a u64, so the use of be32_to_cpu() appears to be an error. [1]: https://github.com/open-power/skiboot/blob/80e2b1dc73/hw/xive.c#L3854 Fixes: 88ec6b93c8e7 ("powerpc/xive: add OPAL extensions for the XIVE native exploitation support") Signed-off-by: Benjamin Gray Signed-off-by: Michael Ellerman Link: https://msgid.link/20231011053711.93427-2-bgray@linux.ibm.com Signed-off-by: Sasha Levin --- arch/powerpc/sysdev/xive/native.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c index 1aec282cd650d..b6323bdecfa4c 100644 --- a/arch/powerpc/sysdev/xive/native.c +++ b/arch/powerpc/sysdev/xive/native.c @@ -786,7 +786,7 @@ int xive_native_get_queue_info(u32 vp_id, u32 prio, if (out_qpage) *out_qpage = be64_to_cpu(qpage); if (out_qsize) - *out_qsize = be32_to_cpu(qsize); + *out_qsize = be64_to_cpu(qsize); if (out_qeoi_page) *out_qeoi_page = be64_to_cpu(qeoi_page); if (out_escalate_irq) -- 2.42.0