From patchwork Wed Dec 2 06:57:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Carpenter X-Patchwork-Id: 11944855 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AFBD7C71156 for ; Wed, 2 Dec 2020 06:58:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5D5C522203 for ; Wed, 2 Dec 2020 06:58:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387531AbgLBG6B (ORCPT ); Wed, 2 Dec 2020 01:58:01 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:34158 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725912AbgLBG6A (ORCPT ); Wed, 2 Dec 2020 01:58:00 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0B26tdrQ006064; Wed, 2 Dec 2020 06:57:12 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : mime-version : content-type; s=corp-2020-01-29; bh=KeHtkQGgRNHBQlZK8iThu8q4d7cC58/O0xG9eohw8pc=; b=FtYeUVUIubl8Yo9R/2zKvPXJhSl9rP1tIVijpeez3Ta1+sBIZdYDPyi5lyIX0qrw/XV9 i+hQZjmwh0K9+wK6ck82ScycfsvA4mJ+Ic1GvnlHywKMszCd717bPEdKjEITV3ovukay rtyfwYOg4Glly3AGeHUuRjjzNJsYslpivMSRyr74AdvBEBxcubtDNnSsDXPuU1oKBtj7 kRNkByVYzwDJKyBzesqmUq9QCNLpT1AR7OVbZSBiqnujdNqSvJ4O7ukEPxqWAQzphWad iEIQZg/6W7FB+PmSnYHJJcoV1Vwf6yEnRJBOQI9733f/VZhicsHrUhPHo2ayHKEfb9G/ sQ== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2130.oracle.com with ESMTP id 353dyqpj56-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 02 Dec 2020 06:57:12 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0B26u80D038848; Wed, 2 Dec 2020 06:57:12 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserp3020.oracle.com with ESMTP id 3540f0053s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 02 Dec 2020 06:57:11 +0000 Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 0B26v9Gn026211; Wed, 2 Dec 2020 06:57:10 GMT Received: from mwanda (/102.36.221.92) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 01 Dec 2020 22:57:08 -0800 Date: Wed, 2 Dec 2020 09:57:02 +0300 From: Dan Carpenter To: Sunil Goutham Cc: Linu Cherian , Geetha sowjanya , Jerin Jacob , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [PATCH net-next] octeontx2-af: debugfs: delete dead code Message-ID: MIME-Version: 1.0 Content-Disposition: inline X-Mailer: git-send-email haha only kidding X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9822 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 phishscore=0 suspectscore=0 bulkscore=0 spamscore=0 adultscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012020041 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9822 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 bulkscore=0 clxscore=1011 mlxscore=0 spamscore=0 priorityscore=1501 mlxlogscore=999 suspectscore=0 lowpriorityscore=0 phishscore=0 adultscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012020041 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org These debugfs never return NULL so all this code will never be run. In the normal case, (and in this case particularly), the debugfs functions are not supposed to be checked for errors so all this error checking code can be safely deleted. Signed-off-by: Dan Carpenter --- .../marvell/octeontx2/af/rvu_debugfs.c | 255 ++++-------------- 1 file changed, 52 insertions(+), 203 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index c383efc6b90c..d27543c1a166 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -1368,119 +1368,52 @@ RVU_DEBUG_SEQ_FOPS(nix_qsize, nix_qsize_display, nix_qsize_write); static void rvu_dbg_nix_init(struct rvu *rvu, int blkaddr) { - const struct device *dev = &rvu->pdev->dev; struct nix_hw *nix_hw; - struct dentry *pfile; if (!is_block_implemented(rvu->hw, blkaddr)) return; if (blkaddr == BLKADDR_NIX0) { rvu->rvu_dbg.nix = debugfs_create_dir("nix", rvu->rvu_dbg.root); - if (!rvu->rvu_dbg.nix) { - dev_err(rvu->dev, "create debugfs dir failed for nix\n"); - return; - } nix_hw = &rvu->hw->nix[0]; } else { rvu->rvu_dbg.nix = debugfs_create_dir("nix1", rvu->rvu_dbg.root); - if (!rvu->rvu_dbg.nix) { - dev_err(rvu->dev, - "create debugfs dir failed for nix1\n"); - return; - } nix_hw = &rvu->hw->nix[1]; } - pfile = debugfs_create_file("sq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, - &rvu_dbg_nix_sq_ctx_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("rq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, - &rvu_dbg_nix_rq_ctx_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("cq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, - &rvu_dbg_nix_cq_ctx_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("ndc_tx_cache", 0600, rvu->rvu_dbg.nix, - nix_hw, &rvu_dbg_nix_ndc_tx_cache_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("ndc_rx_cache", 0600, rvu->rvu_dbg.nix, - nix_hw, &rvu_dbg_nix_ndc_rx_cache_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("ndc_tx_hits_miss", 0600, rvu->rvu_dbg.nix, - nix_hw, - &rvu_dbg_nix_ndc_tx_hits_miss_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("ndc_rx_hits_miss", 0600, rvu->rvu_dbg.nix, - nix_hw, - &rvu_dbg_nix_ndc_rx_hits_miss_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("qsize", 0600, rvu->rvu_dbg.nix, rvu, - &rvu_dbg_nix_qsize_fops); - if (!pfile) - goto create_failed; - - return; -create_failed: - dev_err(dev, - "Failed to create debugfs dir/file for NIX blk\n"); - debugfs_remove_recursive(rvu->rvu_dbg.nix); + debugfs_create_file("sq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_sq_ctx_fops); + debugfs_create_file("rq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_rq_ctx_fops); + debugfs_create_file("cq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_cq_ctx_fops); + debugfs_create_file("ndc_tx_cache", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_ndc_tx_cache_fops); + debugfs_create_file("ndc_rx_cache", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_ndc_rx_cache_fops); + debugfs_create_file("ndc_tx_hits_miss", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_ndc_tx_hits_miss_fops); + debugfs_create_file("ndc_rx_hits_miss", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_ndc_rx_hits_miss_fops); + debugfs_create_file("qsize", 0600, rvu->rvu_dbg.nix, rvu, + &rvu_dbg_nix_qsize_fops); } static void rvu_dbg_npa_init(struct rvu *rvu) { - const struct device *dev = &rvu->pdev->dev; - struct dentry *pfile; - rvu->rvu_dbg.npa = debugfs_create_dir("npa", rvu->rvu_dbg.root); - if (!rvu->rvu_dbg.npa) - return; - - pfile = debugfs_create_file("qsize", 0600, rvu->rvu_dbg.npa, rvu, - &rvu_dbg_npa_qsize_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("aura_ctx", 0600, rvu->rvu_dbg.npa, rvu, - &rvu_dbg_npa_aura_ctx_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("pool_ctx", 0600, rvu->rvu_dbg.npa, rvu, - &rvu_dbg_npa_pool_ctx_fops); - if (!pfile) - goto create_failed; - pfile = debugfs_create_file("ndc_cache", 0600, rvu->rvu_dbg.npa, rvu, - &rvu_dbg_npa_ndc_cache_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("ndc_hits_miss", 0600, rvu->rvu_dbg.npa, - rvu, &rvu_dbg_npa_ndc_hits_miss_fops); - if (!pfile) - goto create_failed; - - return; - -create_failed: - dev_err(dev, "Failed to create debugfs dir/file for NPA\n"); - debugfs_remove_recursive(rvu->rvu_dbg.npa); + debugfs_create_file("qsize", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_qsize_fops); + debugfs_create_file("aura_ctx", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_aura_ctx_fops); + debugfs_create_file("pool_ctx", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_pool_ctx_fops); + debugfs_create_file("ndc_cache", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_ndc_cache_fops); + debugfs_create_file("ndc_hits_miss", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_ndc_hits_miss_fops); } #define PRINT_CGX_CUML_NIXRX_STATUS(idx, name) \ @@ -1614,8 +1547,6 @@ RVU_DEBUG_SEQ_FOPS(cgx_stat, cgx_stat_display, NULL); static void rvu_dbg_cgx_init(struct rvu *rvu) { - const struct device *dev = &rvu->pdev->dev; - struct dentry *pfile; int i, lmac_id; char dname[20]; void *cgx; @@ -1636,18 +1567,10 @@ static void rvu_dbg_cgx_init(struct rvu *rvu) rvu->rvu_dbg.lmac = debugfs_create_dir(dname, rvu->rvu_dbg.cgx); - pfile = debugfs_create_file("stats", 0600, - rvu->rvu_dbg.lmac, cgx, - &rvu_dbg_cgx_stat_fops); - if (!pfile) - goto create_failed; + debugfs_create_file("stats", 0600, rvu->rvu_dbg.lmac, + cgx, &rvu_dbg_cgx_stat_fops); } } - return; - -create_failed: - dev_err(dev, "Failed to create debugfs dir/file for CGX\n"); - debugfs_remove_recursive(rvu->rvu_dbg.cgx_root); } /* NPC debugfs APIs */ @@ -1970,33 +1893,14 @@ RVU_DEBUG_SEQ_FOPS(npc_mcam_rules, npc_mcam_show_rules, NULL); static void rvu_dbg_npc_init(struct rvu *rvu) { - const struct device *dev = &rvu->pdev->dev; - struct dentry *pfile; - rvu->rvu_dbg.npc = debugfs_create_dir("npc", rvu->rvu_dbg.root); - if (!rvu->rvu_dbg.npc) - return; - pfile = debugfs_create_file("mcam_info", 0444, rvu->rvu_dbg.npc, - rvu, &rvu_dbg_npc_mcam_info_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("mcam_rules", 0444, rvu->rvu_dbg.npc, - rvu, &rvu_dbg_npc_mcam_rules_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("rx_miss_act_stats", 0444, rvu->rvu_dbg.npc, - rvu, &rvu_dbg_npc_rx_miss_act_fops); - if (!pfile) - goto create_failed; - - return; - -create_failed: - dev_err(dev, "Failed to create debugfs dir/file for NPC\n"); - debugfs_remove_recursive(rvu->rvu_dbg.npc); + debugfs_create_file("mcam_info", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_mcam_info_fops); + debugfs_create_file("mcam_rules", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_mcam_rules_fops); + debugfs_create_file("rx_miss_act_stats", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_rx_miss_act_fops); } /* CPT debugfs APIs */ @@ -2205,84 +2109,35 @@ RVU_DEBUG_SEQ_FOPS(cpt_pc, cpt_pc_display, NULL); static void rvu_dbg_cpt_init(struct rvu *rvu) { - const struct device *dev = &rvu->pdev->dev; - struct dentry *pfile; - if (!is_block_implemented(rvu->hw, BLKADDR_CPT0)) return; rvu->rvu_dbg.cpt = debugfs_create_dir("cpt", rvu->rvu_dbg.root); - if (!rvu->rvu_dbg.cpt) - return; - pfile = debugfs_create_file("cpt_pc", 0600, - rvu->rvu_dbg.cpt, rvu, - &rvu_dbg_cpt_pc_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("cpt_ae_sts", 0600, - rvu->rvu_dbg.cpt, rvu, - &rvu_dbg_cpt_ae_sts_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("cpt_se_sts", 0600, - rvu->rvu_dbg.cpt, rvu, - &rvu_dbg_cpt_se_sts_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("cpt_ie_sts", 0600, - rvu->rvu_dbg.cpt, rvu, - &rvu_dbg_cpt_ie_sts_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("cpt_engines_info", 0600, - rvu->rvu_dbg.cpt, rvu, - &rvu_dbg_cpt_engines_info_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("cpt_lfs_info", 0600, - rvu->rvu_dbg.cpt, rvu, - &rvu_dbg_cpt_lfs_info_fops); - if (!pfile) - goto create_failed; - - pfile = debugfs_create_file("cpt_err_info", 0600, - rvu->rvu_dbg.cpt, rvu, - &rvu_dbg_cpt_err_info_fops); - if (!pfile) - goto create_failed; - - return; - -create_failed: - dev_err(dev, "Failed to create debugfs dir/file for CPT\n"); - debugfs_remove_recursive(rvu->rvu_dbg.cpt); + debugfs_create_file("cpt_pc", 0600, rvu->rvu_dbg.cpt, rvu, + &rvu_dbg_cpt_pc_fops); + debugfs_create_file("cpt_ae_sts", 0600, rvu->rvu_dbg.cpt, rvu, + &rvu_dbg_cpt_ae_sts_fops); + debugfs_create_file("cpt_se_sts", 0600, rvu->rvu_dbg.cpt, rvu, + &rvu_dbg_cpt_se_sts_fops); + debugfs_create_file("cpt_ie_sts", 0600, rvu->rvu_dbg.cpt, rvu, + &rvu_dbg_cpt_ie_sts_fops); + debugfs_create_file("cpt_engines_info", 0600, rvu->rvu_dbg.cpt, rvu, + &rvu_dbg_cpt_engines_info_fops); + debugfs_create_file("cpt_lfs_info", 0600, rvu->rvu_dbg.cpt, rvu, + &rvu_dbg_cpt_lfs_info_fops); + debugfs_create_file("cpt_err_info", 0600, rvu->rvu_dbg.cpt, rvu, + &rvu_dbg_cpt_err_info_fops); } void rvu_dbg_init(struct rvu *rvu) { - struct device *dev = &rvu->pdev->dev; - struct dentry *pfile; - rvu->rvu_dbg.root = debugfs_create_dir(DEBUGFS_DIR_NAME, NULL); - if (!rvu->rvu_dbg.root) { - dev_err(rvu->dev, "%s failed\n", __func__); - return; - } - pfile = debugfs_create_file("rsrc_alloc", 0444, rvu->rvu_dbg.root, rvu, - &rvu_dbg_rsrc_status_fops); - if (!pfile) - goto create_failed; - pfile = debugfs_create_file("rvu_pf_cgx_map", 0444, rvu->rvu_dbg.root, - rvu, &rvu_dbg_rvu_pf_cgx_map_fops); - if (!pfile) - goto create_failed; + debugfs_create_file("rsrc_alloc", 0444, rvu->rvu_dbg.root, rvu, + &rvu_dbg_rsrc_status_fops); + debugfs_create_file("rvu_pf_cgx_map", 0444, rvu->rvu_dbg.root, rvu, + &rvu_dbg_rvu_pf_cgx_map_fops); rvu_dbg_npa_init(rvu); rvu_dbg_nix_init(rvu, BLKADDR_NIX0); @@ -2291,12 +2146,6 @@ void rvu_dbg_init(struct rvu *rvu) rvu_dbg_cgx_init(rvu); rvu_dbg_npc_init(rvu); rvu_dbg_cpt_init(rvu); - - return; - -create_failed: - dev_err(dev, "Failed to create debugfs dir\n"); - debugfs_remove_recursive(rvu->rvu_dbg.root); } void rvu_dbg_exit(struct rvu *rvu)