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bh=DGbCaZBy1FpfvXwgzKpSCwa07WA8CY/Qb4IJHso0Te4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=rc8Hq89Fb5fz3t9XGAV9DEbHVf5dfp7yp00Gf9MYpCbFElXUliv8K0TJ88EegoebM lMHRZL83a9AqjbASsPk3qVgNFrp4VheSaUprtXI9vxtui90WS9FjZFrbxSMEBA+AFT xc3KncdB3VgIsSI2EjPb3pbBX8z4jE0V+gxrfv0k= Received: from [2001:bf0:244:244::71] (helo=mail.avm.de) by mail.avm.de with ESMTP (eXpurgate 4.55.2) (envelope-from ) id 69b006ab-2367-7f0000032729-7f0000019cc4-1 for ; Tue, 10 Mar 2026 12:55:23 +0100 Received: from mail-auth.avm.de (dovecot-mx-01.avm.de [IPv6:2001:bf0:244:244::71]) by mail.avm.de (Postfix) with ESMTPS; Tue, 10 Mar 2026 12:55:23 +0100 (CET) From: Philipp Hahn Date: Tue, 10 Mar 2026 12:48:28 +0100 Subject: [PATCH 02/61] btrfs: Prefer IS_ERR_OR_NULL over manual NULL check MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260310-b4-is_err_or_null-v1-2-bd63b656022d@avm.de> References: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de> In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de> To: amd-gfx@lists.freedesktop.org, apparmor@lists.ubuntu.com, bpf@vger.kernel.org, ceph-devel@vger.kernel.org, cocci@inria.fr, dm-devel@lists.linux.dev, dri-devel@lists.freedesktop.org, gfs2@lists.linux.dev, intel-gfx@lists.freedesktop.org, intel-wired-lan@lists.osuosl.org, iommu@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-clk@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org, linux-media@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nfs@vger.kernel.org, linux-omap@vger.kernel.org, linux-phy@lists.infradead.org, linux-pm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-sctp@vger.kernel.org, linux-security-module@vger.kernel.org, linux-sh@vger.kernel.org, linux-sound@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-trace-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, ntfs3@lists.linux.dev, samba-technical@lists.samba.org, sched-ext@lists.linux.dev, target-devel@vger.kernel.org, tipc-discussion@lists.sourceforge.net, v9fs@lists.linux.dev, Philipp Hahn Cc: Chris Mason , David Sterba X-Developer-Signature: v=1; a=openpgp-sha256; l=3017; i=phahn-oss@avm.de; h=from:subject:message-id; bh=DGbCaZBy1FpfvXwgzKpSCwa07WA8CY/Qb4IJHso0Te4=; b=owEBbQGS/pANAwAKATQtBlPRrKzbAcsmYgBpsAXVP8rQiO4oClcWoVpEQy4tTT6UufgJ8AjmW meFZ085mAaJATMEAAEKAB0WIQQ5bPBtrWDUcDQCppg0LQZT0ays2wUCabAF1QAKCRA0LQZT0ays 26ZTCACM3Mi9LEMEAWgAR6v8SxUVk3um+/46scAm+wvRfrMWEFwlnMkQBbCGIGZUNkKB1Pk7uvR q9d3fZ689cKMySmmjPCYjQ/WgGDVLcywEn6In35Jwnklhlj4dYJLSL6WxXsza+vlAV93TQDvaTs OFlLEsZ2j+XY+f2mrUOcVwOk+301k/goYUacbLoVSw0YZnroo7kAB2acRVGhOGAOOiJoiVAdHNU Yf8QURa2qrPqHMwGd4SQRV57t+Grw+zEItF3L0eYw7mf41TaJcLeP7Vo+0nFp2D9QdrMND4nUec WhX0remRDcBywCJPWh7SmqRiZyiXDaIfp9JkUkUr5yx6Wacb X-Developer-Key: i=phahn-oss@avm.de; a=openpgp; fpr=58AF7C2E007CDBE62C59E078F50EFDCF8AD04B1A X-purgate-ID: 149429::1773143723-80C85E1F-0AA4A985/0/0 X-purgate-type: clean X-purgate-size: 3019 X-purgate-Ad: Categorized by eleven eXpurgate (R) https://www.eleven.de X-purgate: This mail is considered clean (visit https://www.eleven.de for further information) X-purgate: clean X-Mailman-Approved-At: Wed, 11 Mar 2026 08:04:38 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL check. IS_ERR_OR_NULL() already uses likely(!ptr) internally. checkpatch does not like nesting it: > WARNING: nested (un)?likely() calls, IS_ERR_OR_NULL already uses > unlikely() internally Remove the explicit use of likely(). Change generated with coccinelle. To: Chris Mason To: David Sterba Cc: linux-btrfs@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Philipp Hahn --- fs/btrfs/inode.c | 2 +- fs/btrfs/transaction.c | 2 +- fs/btrfs/tree-log.c | 2 +- fs/btrfs/uuid-tree.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index a11fcc9e9f502c559148cf33679014fb83b0d3b0..7c26a0bf56bf7309e2ce8256854d760b2d64b16a 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4683,7 +4683,7 @@ static noinline int may_destroy_subvol(struct btrfs_root *root) dir_id = btrfs_super_root_dir(fs_info->super_copy); di = btrfs_lookup_dir_item(NULL, fs_info->tree_root, path, dir_id, &name, 0); - if (di && !IS_ERR(di)) { + if (!IS_ERR_OR_NULL(di)) { btrfs_dir_item_key_to_cpu(path->nodes[0], di, &key); if (key.objectid == btrfs_root_id(root)) { ret = -EPERM; diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 7ef8c9b7dfc17a5133b6d2dc134e288975ed98d1..40b83037725033d3178dc3fc2c1e347ad2c597f7 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1737,7 +1737,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, dir_item = btrfs_lookup_dir_item(NULL, parent_root, path, btrfs_ino(parent_inode), &fname.disk_name, 0); - if (unlikely(dir_item != NULL && !IS_ERR(dir_item))) { + if (!IS_ERR_OR_NULL(dir_item)) { pending->error = -EEXIST; goto dir_item_existed; } else if (IS_ERR(dir_item)) { diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 780a06d592409b05fb42dc8079b019d23fe0cdfa..2e07ae393cf9d16f562047dd4cbfd7b4b9f2952e 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -5750,7 +5750,7 @@ static int btrfs_check_ref_name_override(struct extent_buffer *eb, name_str.len = this_name_len; di = btrfs_lookup_dir_item(NULL, inode->root, search_path, parent, &name_str, 0); - if (di && !IS_ERR(di)) { + if (!IS_ERR_OR_NULL(di)) { struct btrfs_key di_key; btrfs_dir_item_key_to_cpu(search_path->nodes[0], diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c index f24c14b9bb2fd7420b06263a5a0c4b889a859bc6..c497b287f3418933e532903b326b969416ae22cb 100644 --- a/fs/btrfs/uuid-tree.c +++ b/fs/btrfs/uuid-tree.c @@ -478,7 +478,7 @@ int btrfs_uuid_scan_kthread(void *data) out: btrfs_free_path(path); - if (trans && !IS_ERR(trans)) + if (!IS_ERR_OR_NULL(trans)) btrfs_end_transaction(trans); if (ret) btrfs_warn(fs_info, "btrfs_uuid_scan_kthread failed %d", ret); -- 2.43.0