From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 771631FCF66; Wed, 5 Feb 2025 14:48:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738766895; cv=none; b=OWkjd8+B0EnV+z9ZF++Pif/zn/g0YUUTcdBUk2X73mW+mfIO85mu4AntQD/ird2cGkJrH4qEw/isS97p8TxcahHQuQdnH1yzoMiDbVWvZUsI0rN6HScVk08i6+c3wTXgT8MfeiUtWYt0QWn8W8Y/N65l2TcatFfsmbWe1p99ei4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738766895; c=relaxed/simple; bh=dNMWNQZnxB+R0IqxhXPgKxsVYCG6R5aadGWleveu6rM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BCNDmLnViXum3SI47gKG95pXHrBvYrPDdVL2SbT7JdPd1A8PcnbLUiLX+DWG47LR1azjfKPh8FrrB9qkas2sUWPu/1+evPxNTsjQDxbxKC4TZSm7ymdhHtPe8DxEN1n0IzBmF3OdWr4H7XB3te1z8Mp4Q7LnX7s0RiczXrQjZ9U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=R75MB3DO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="R75MB3DO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5FADAC4CED1; Wed, 5 Feb 2025 14:48:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1738766893; bh=dNMWNQZnxB+R0IqxhXPgKxsVYCG6R5aadGWleveu6rM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R75MB3DO/SeO3L8BgHseFPtJ1mvn4iI9w6z+cS1uvIwC9fXxWx/8Gm1HXD3iUz6xe fqLyyfGTDEC9SOM+KzVAbPUhCD/2LSpGgDKd1nPA6GVHNm4SXtbaDyAelbHmwNf05R /MWfktoYUlu3/d+Gi08L0Z2phE/3bPspJouzlEwQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jinpu Wang , Li Zhijian , Leon Romanovsky , Sasha Levin Subject: [PATCH 6.12 368/590] RDMA/rtrs: Add missing deinit() call Date: Wed, 5 Feb 2025 14:42:03 +0100 Message-ID: <20250205134509.350309349@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250205134455.220373560@linuxfoundation.org> References: <20250205134455.220373560@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Li Zhijian [ Upstream commit 81468c4058a62e84e475433b83b3edc613294f5e ] A warning is triggered when repeatedly connecting and disconnecting the rnbd: list_add corruption. prev->next should be next (ffff88800b13e480), but was ffff88801ecd1338. (prev=ffff88801ecd1340). WARNING: CPU: 1 PID: 36562 at lib/list_debug.c:32 __list_add_valid_or_report+0x7f/0xa0 Workqueue: ib_cm cm_work_handler [ib_cm] RIP: 0010:__list_add_valid_or_report+0x7f/0xa0 ? __list_add_valid_or_report+0x7f/0xa0 ib_register_event_handler+0x65/0x93 [ib_core] rtrs_srv_ib_dev_init+0x29/0x30 [rtrs_server] rtrs_ib_dev_find_or_add+0x124/0x1d0 [rtrs_core] __alloc_path+0x46c/0x680 [rtrs_server] ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server] ? rcu_is_watching+0xd/0x40 ? __mutex_lock+0x312/0xcf0 ? get_or_create_srv+0xad/0x310 [rtrs_server] ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server] rtrs_rdma_connect+0x23c/0x2d0 [rtrs_server] ? __lock_release+0x1b1/0x2d0 cma_cm_event_handler+0x4a/0x1a0 [rdma_cm] cma_ib_req_handler+0x3a0/0x7e0 [rdma_cm] cm_process_work+0x28/0x1a0 [ib_cm] ? _raw_spin_unlock_irq+0x2f/0x50 cm_req_handler+0x618/0xa60 [ib_cm] cm_work_handler+0x71/0x520 [ib_cm] Commit 667db86bcbe8 ("RDMA/rtrs: Register ib event handler") introduced a new element .deinit but never used it at all. Fix it by invoking the `deinit()` to appropriately unregister the IB event handler. Cc: Jinpu Wang Fixes: 667db86bcbe8 ("RDMA/rtrs: Register ib event handler") Signed-off-by: Li Zhijian Link: https://patch.msgid.link/20250106004516.16611-1-lizhijian@fujitsu.com Acked-by: Jack Wang Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/ulp/rtrs/rtrs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/ulp/rtrs/rtrs.c b/drivers/infiniband/ulp/rtrs/rtrs.c index 4e17d546d4ccf..bf38ac6f87c47 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs.c +++ b/drivers/infiniband/ulp/rtrs/rtrs.c @@ -584,6 +584,9 @@ static void dev_free(struct kref *ref) list_del(&dev->entry); mutex_unlock(&pool->mutex); + if (pool->ops && pool->ops->deinit) + pool->ops->deinit(dev); + ib_dealloc_pd(dev->ib_pd); kfree(dev); } -- 2.39.5