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 535D1C001E0 for ; Mon, 23 Oct 2023 11:40:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233215AbjJWLkV (ORCPT ); Mon, 23 Oct 2023 07:40:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54346 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234256AbjJWLkT (ORCPT ); Mon, 23 Oct 2023 07:40:19 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9EF89DB for ; Mon, 23 Oct 2023 04:40:17 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DBBD5C433C8; Mon, 23 Oct 2023 11:40:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1698061217; bh=wxP/CrDIP79ZVTw/ggCTWRwrDka7MRLB/dVBw+kEPps=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1rFi/a51KNJ72O5V+zkIp1UQkHhSOqzvISNUrX97AuMSrWwwPRJ34m1d/+UJYhDoO uNJGlX7uKmkCS4G0kEFEnFsXC3KqDQAs98kOXhV4rc5w2GjteKWqyA8C+mkdMrebUX FnE+RrfGv0ZlrUq2Q9SYphivoMCYIjigfu8skUmI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Damien Le Moal , Hannes Reinecke , Geert Uytterhoeven , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.15 075/137] ata: libata-core: Fix compilation warning in ata_dev_config_ncq() Date: Mon, 23 Oct 2023 12:57:12 +0200 Message-ID: <20231023104823.460833888@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231023104820.849461819@linuxfoundation.org> References: <20231023104820.849461819@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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: Damien Le Moal [ Upstream commit ed518d9ba980dc0d27c7d1dea1e627ba001d1977 ] The 24 bytes length allocated to the ncq_desc string in ata_dev_config_lba() for ata_dev_config_ncq() to use is too short, causing the following gcc compilation warnings when compiling with W=1: drivers/ata/libata-core.c: In function ‘ata_dev_configure’: drivers/ata/libata-core.c:2378:56: warning: ‘%d’ directive output may be truncated writing between 1 and 2 bytes into a region of size between 1 and 11 [-Wformat-truncation=] 2378 | snprintf(desc, desc_sz, "NCQ (depth %d/%d)%s", hdepth, | ^~ In function ‘ata_dev_config_ncq’, inlined from ‘ata_dev_config_lba’ at drivers/ata/libata-core.c:2649:8, inlined from ‘ata_dev_configure’ at drivers/ata/libata-core.c:2952:9: drivers/ata/libata-core.c:2378:41: note: directive argument in the range [1, 32] 2378 | snprintf(desc, desc_sz, "NCQ (depth %d/%d)%s", hdepth, | ^~~~~~~~~~~~~~~~~~~~~ drivers/ata/libata-core.c:2378:17: note: ‘snprintf’ output between 16 and 31 bytes into a destination of size 24 2378 | snprintf(desc, desc_sz, "NCQ (depth %d/%d)%s", hdepth, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2379 | ddepth, aa_desc); | ~~~~~~~~~~~~~~~~ Avoid these warnings and the potential truncation by changing the size of the ncq_desc string to 32 characters. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Tested-by: Geert Uytterhoeven Reviewed-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/ata/libata-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 96786d6fcf37b..383398af836c8 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2382,7 +2382,7 @@ static int ata_dev_config_lba(struct ata_device *dev) struct ata_port *ap = dev->link->ap; const u16 *id = dev->id; const char *lba_desc; - char ncq_desc[24]; + char ncq_desc[32]; int ret; dev->flags |= ATA_DFLAG_LBA; -- 2.40.1