From patchwork Tue May 30 15:49:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13260601 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 93B2DC7EE37 for ; Tue, 30 May 2023 15:50:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232725AbjE3PuQ (ORCPT ); Tue, 30 May 2023 11:50:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232674AbjE3PuM (ORCPT ); Tue, 30 May 2023 11:50:12 -0400 Received: from esa4.hgst.iphmx.com (esa4.hgst.iphmx.com [216.71.154.42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 61D75113; Tue, 30 May 2023 08:50:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1685461806; x=1716997806; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=feBhECdTKAjH9l6zrs2xmhiYw9k0zkjzEVMqz5jiOVc=; b=d2I3mRQIYCqRP/r+8C7Ic8ej29eYBLkFuohOOyRyoLThupKdfBm/SuhM gR2buiE1HpDoTQbuO/DrCmxaZGb8wIe9pXPlaX8IbIYmTn79eAjSI37jl K9plNwJqdJ0tmb2Z69HO9vn5rhiQDo7ddiwTPlptE3pxWi+4ACa+mU6HE aqVppqOE+QGMIG/orj7L6trbTRgooBUmjtXRPsh7dy7Zq/WAfeC40QO4W d3XA07DxD94Esj3mZTPxZMf6GjoNbkJQebgaIFs7XGKWPztlUo3iqbtzM bFxOdkRCtZfbz4YYT81kXTpn8G3MT6Hol/DP4BnfPJc2AFZc6nznvuarx w==; X-IronPort-AV: E=Sophos;i="6.00,204,1681142400"; d="scan'208";a="230129822" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 30 May 2023 23:50:06 +0800 IronPort-SDR: DZ+4eHi00X+yAuAgAY52mezda14hbhRF9JHMJRnCFSFrSSMEkOJ9s7i4iciKyKT3L4Pagmxwk8 O9Hwo54B28XuKm69XPn8c2vl2yNy1sOHJ+N9f1cLfyQzxEL795oaIe+5A27GFHw6DgyWqASy32 WjUOdH+OU/lV9AjWUF16Q9pag+HlCs5u9cmw5kL3cgxutSQRg7TYoCse6Mq/4jRQiCXjMmvm0v kbB6rkaDt91RvQrhu7083sH2rvFtb4nu2uU5FznsDZT8RFYff5276LpIFMoC9iCaK0xYCBdj3D Jmo= Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 30 May 2023 08:04:59 -0700 IronPort-SDR: EhH4NXigyhjdlA+o9IGwq9toIdfLXKwjqpigNPLms4HX2ZY0xdq+HGjMqjM/LXPE0H0lh+M4yV XOUH1WqeeUTQLRM43o4YQyLZh/QIjvwzVGZbVmNMXHvT5n2wQIzYOdHngHeSW32GE9fp8AeZ38 O7IBIim14OZkdwKoUagjTCGpbHBhvSrPULKGTbznjjKuwsGFp7K4CnPG+U/LPiXHGWkqFNNUNH jUB2k76eBdmfrU2hEjhb4tbcKZs+3fgO9fPe2xuInJzHIOQ0mXkmAO0bd7p4K36l0YuHQ9uRO9 U7A= WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.6]) by uls-op-cesaip02.wdc.com with ESMTP; 30 May 2023 08:50:03 -0700 From: Johannes Thumshirn To: Jens Axboe Cc: Christoph Hellwig , Hannes Reinecke , Chaitanya Kulkarni , Damien Le Moal , Ming Lei , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, dm-devel@redhat.com, Song Liu , linux-raid@vger.kernel.org, Mike Snitzer , Matthew Wilcox , Dave Kleikamp , jfs-discussion@lists.sourceforge.net, cluster-devel@redhat.com, Bob Peterson , Andreas Gruenbacher , Mikulas Patocka , gouhao@uniontech.com, Johannes Thumshirn , Damien Le Moal Subject: [PATCH v6 12/20] floppy: use __bio_add_page for adding single page to bio Date: Tue, 30 May 2023 08:49:15 -0700 Message-Id: <7e817bf13ca47fd863385997c0a9794221df7781.1685461490.git.johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org The floppy code uses bio_add_page() to add a page to a newly created bio. bio_add_page() can fail, but the return value is never checked. Use __bio_add_page() as adding a single page to a newly created bio is guaranteed to succeed. This brings us a step closer to marking bio_add_page() as __must_check. Reviewed-by: Damien Le Moal Signed-off-by: Johannes Thumshirn Reviewed-by: Christoph Hellwig --- drivers/block/floppy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index cec2c20f5e59..28ec6b442e9c 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4147,7 +4147,7 @@ static int __floppy_read_block_0(struct block_device *bdev, int drive) cbdata.drive = drive; bio_init(&bio, bdev, &bio_vec, 1, REQ_OP_READ); - bio_add_page(&bio, page, block_size(bdev), 0); + __bio_add_page(&bio, page, block_size(bdev), 0); bio.bi_iter.bi_sector = 0; bio.bi_flags |= (1 << BIO_QUIET);