From patchwork Wed May 31 11:50:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13262101 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 9853BC7EE37 for ; Wed, 31 May 2023 11:52:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235839AbjEaLwt (ORCPT ); Wed, 31 May 2023 07:52:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235835AbjEaLwi (ORCPT ); Wed, 31 May 2023 07:52:38 -0400 Received: from esa2.hgst.iphmx.com (esa2.hgst.iphmx.com [68.232.143.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A3491134; Wed, 31 May 2023 04:51:36 -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=1685533896; x=1717069896; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Hm9sz+6gQ1vQAlShNXkzg+WL0o4VgpWyUzccJnRSUVY=; b=GFokHzMKgm3Vh7sYtI3teB65DlORnUCAoar1NcuI+PbRNnnNM5x8n/VD YSuQ5QisAsrbVp+JpAIF7gEOhiJvEDb1eJElHvREWa7uwfGq/X2UiQZgI 2tAVHMZsHZ0rtlVeP2YargXH3VLalESNH6Dwqhy10HcaeYukVNq461Xve GcPmWDWplfztwYnuDbFD0Wt+q77Urc4kLAxVfeTJR/DDErApctj6BLUCL f0iAB9PTOMUSSyAlUeO8vkbdYIZAqRQBuK+NqDgNOzmrY3hgAHk1yhMGm QlolzyVwX9vWiMtGxMaVScFp2vEPgEyeXyZGsbS6vHQLwRUP8xxul3Rms Q==; X-IronPort-AV: E=Sophos;i="6.00,207,1681142400"; d="scan'208";a="336547957" Received: from uls-op-cesaip01.wdc.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 31 May 2023 19:51:28 +0800 IronPort-SDR: lQzsj7eKwHxVICNRjsFZNOYW67x3gxW0W6eBJA1M2XYOKSDy78j9i2PZeHk/YjqPJqnXMzPrbM 0Glfbv37F6bO2rjNedBt3vpUJC+r3oiXBrix8AbppwKy5gNcghWtVY/Uuaj06aMbZAirsAVzw8 36ZvxarIMovM5qgsv22fXTFVqRaJqXHadDcgU8eQ1kl1Ejp3ab6tL1kh8JA0TUf4joweWw0Z3o FZKugxJd5NyMSfrRqpehksglRHuvktssa43D5ef1ipm8rkNf+OG98zC6F/n4YPsxHHtpFKfSB/ WMM= 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; 31 May 2023 04:06:21 -0700 IronPort-SDR: ZZvgdXqWvf2bLPrnAzdu5RRz15ga0Chi9bLZvedEHwiFH+B9pi1FcckdZ9/wvgZDFhJZaVL+Gb BhT3tjRKwgxHLeMEuSyllM/qJbuncE8qbGgRTt2n/CBlkxPhKUal5Omdh78LULTg56zSv1r4Xu EaLt4CaJU4Rb1gJ2dDbb7DbwFFDTwtL1QrA2IPFcyQpyOtCc2SCv82C+Ozex//EzTenqavOpi1 mtt/lwX3ifWVjnHHZE9zO0efKjQ4U5fS3Sv/0Tpv49OzM2Qr9C8+dRTcsbUdyAftaM3SElFTbV W6o= WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.6]) by uls-op-cesaip02.wdc.com with ESMTP; 31 May 2023 04:51:26 -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 , gouha7@uniontech.com, Johannes Thumshirn , Damien Le Moal Subject: [PATCH v7 12/20] floppy: use __bio_add_page for adding single page to bio Date: Wed, 31 May 2023 04:50:35 -0700 Message-Id: <33c445a3b431270c72d9be03d5da1b08ae983920.1685532726.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: Christoph Hellwig Reviewed-by: Damien Le Moal Signed-off-by: Johannes Thumshirn --- 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);