From patchwork Mon Sep 13 13:20:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 510282 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 AC466C433F5 for ; Mon, 13 Sep 2021 13:31:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8D24261502 for ; Mon, 13 Sep 2021 13:31:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242850AbhIMNau (ORCPT ); Mon, 13 Sep 2021 09:30:50 -0400 Received: from smtp-relay-internal-1.canonical.com ([185.125.188.123]:57998 "EHLO smtp-relay-internal-1.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240870AbhIMNXn (ORCPT ); Mon, 13 Sep 2021 09:23:43 -0400 Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-internal-1.canonical.com (Postfix) with ESMTPS id 7232040268 for ; Mon, 13 Sep 2021 13:20:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1631539257; bh=JDWMUU6nWDzDRnCxtysvffFNd9O3HT0+eb4C8TwA21k=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=AT50zYsUhKhBvVWly4zWGiIrS3fw5Rlh4zpx1GMqIPavvdh+ETuapUj/qL5a6nNhe FFves17C7x8wL5TO4f5sJxY5fz22AUeugk1jpNdYikqh0iiiB33rCfZv7qkv0CKCNy hXHv0K4rxaEbfyKabgsaPTMBmz4qAyENB0cH4C+Mj4UWk2e51MceKb3EPIxlvN0vXV BO1bcxQ/GkA8znmTwaiV+p+eOUBOj1voQPG/sfYEvYl9UYqT39KCIkQbi2G2PqlPTc M30cOF+uNshQzbCDy5h55KvHSjy3fm4rRjH72Tu9rRlBiraSedDWrCUz6HwqKBT+tT v2dtDH92X5tNA== Received: by mail-wm1-f69.google.com with SMTP id v2-20020a7bcb420000b02902e6b108fcf1so3954194wmj.8 for ; Mon, 13 Sep 2021 06:20:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=JDWMUU6nWDzDRnCxtysvffFNd9O3HT0+eb4C8TwA21k=; b=woTtIbdAbccPM1tGXx6siuUzwZ/yiePYaH5l65JL0RSgNkshi8aMARK5pTBMjmQptC afVu9HnyyQPiVdB9XrSwREPCBD7wcZmnpRyPjovkwU3s+TWicNAk7S30LhUTuewViH0h LQyjRk1Dmv3p6FOGYQz08DmSixY5qzr8q4sM36CvnsoqDNOCdmyAnW6yz+7kk9xjMk1V wZnKhEA+g1dsBIuErGinm86aJgb0ftL6pzkiKutMJu2csceWWwUVl4uXTR8taR3KmdU2 XCFNs9No1ETsZoERFNflXX8mVDk3Wb05PqY8VL8KzmbyXkAbW2CjJy94rs8QNnu2V/8Y YJkA== X-Gm-Message-State: AOAM532JYJ4gJ68y7OXKQM5k/m/Y4fd/bfkvtYWCg/547ofENWtcQdt0 ZgRIAXr5ZsK4XQZR/Y60iAJ30OznHVJ00Dsexnj49HgAfv3nALrLUNSTRkskAjVKadDdbmeQReR 4VZPPd0EFcY/lrFFeXCAAJ+IfzFFPS1eGPg== X-Received: by 2002:a5d:444a:: with SMTP id x10mr7654691wrr.360.1631539257017; Mon, 13 Sep 2021 06:20:57 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzKPj+462pRRxILGM9tOXiOgGchmte7nE+V57dc1dDDx9G598lnjvVj+fXxoKdQ7XG2OOEDQg== X-Received: by 2002:a5d:444a:: with SMTP id x10mr7654671wrr.360.1631539256797; Mon, 13 Sep 2021 06:20:56 -0700 (PDT) Received: from kozik-lap.lan (lk.84.20.244.219.dc.cable.static.lj-kabel.net. [84.20.244.219]) by smtp.gmail.com with ESMTPSA id n3sm7195888wmi.0.2021.09.13.06.20.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Sep 2021 06:20:56 -0700 (PDT) From: Krzysztof Kozlowski To: Krzysztof Kozlowski , Krzysztof Opasiak , Mark Greer , "David S. Miller" , Jakub Kicinski , linux-nfc@lists.01.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org Subject: [PATCH v2 09/15] nfc: s3fwrn5: simplify dereferencing pointer to struct device Date: Mon, 13 Sep 2021 15:20:29 +0200 Message-Id: <20210913132035.242870-10-krzysztof.kozlowski@canonical.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210913132035.242870-1-krzysztof.kozlowski@canonical.com> References: <20210913132035.242870-1-krzysztof.kozlowski@canonical.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Simplify the code dereferencing several pointers to reach the struct device. Signed-off-by: Krzysztof Kozlowski --- drivers/nfc/s3fwrn5/firmware.c | 29 +++++++++++------------------ drivers/nfc/s3fwrn5/nci.c | 18 +++++++----------- 2 files changed, 18 insertions(+), 29 deletions(-) diff --git a/drivers/nfc/s3fwrn5/firmware.c b/drivers/nfc/s3fwrn5/firmware.c index 1af7a1e632cf..c20fdbac51c5 100644 --- a/drivers/nfc/s3fwrn5/firmware.c +++ b/drivers/nfc/s3fwrn5/firmware.c @@ -357,6 +357,7 @@ s3fwrn5_fw_is_custom(const struct s3fwrn5_fw_cmd_get_bootinfo_rsp *bootinfo) int s3fwrn5_fw_setup(struct s3fwrn5_fw_info *fw_info) { + struct device *dev = &fw_info->ndev->nfc_dev->dev; struct s3fwrn5_fw_cmd_get_bootinfo_rsp bootinfo; int ret; @@ -364,8 +365,7 @@ int s3fwrn5_fw_setup(struct s3fwrn5_fw_info *fw_info) ret = s3fwrn5_fw_get_bootinfo(fw_info, &bootinfo); if (ret < 0) { - dev_err(&fw_info->ndev->nfc_dev->dev, - "Failed to get bootinfo, ret=%02x\n", ret); + dev_err(dev, "Failed to get bootinfo, ret=%02x\n", ret); goto err; } @@ -373,8 +373,7 @@ int s3fwrn5_fw_setup(struct s3fwrn5_fw_info *fw_info) ret = s3fwrn5_fw_get_base_addr(&bootinfo, &fw_info->base_addr); if (ret < 0) { - dev_err(&fw_info->ndev->nfc_dev->dev, - "Unknown hardware version\n"); + dev_err(dev, "Unknown hardware version\n"); goto err; } @@ -409,6 +408,7 @@ bool s3fwrn5_fw_check_version(const struct s3fwrn5_fw_info *fw_info, u32 version int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info) { + struct device *dev = &fw_info->ndev->nfc_dev->dev; struct s3fwrn5_fw_image *fw = &fw_info->fw; u8 hash_data[SHA1_DIGEST_SIZE]; struct crypto_shash *tfm; @@ -421,8 +421,7 @@ int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info) tfm = crypto_alloc_shash("sha1", 0, 0); if (IS_ERR(tfm)) { - dev_err(&fw_info->ndev->nfc_dev->dev, - "Cannot allocate shash (code=%pe)\n", tfm); + dev_err(dev, "Cannot allocate shash (code=%pe)\n", tfm); return PTR_ERR(tfm); } @@ -430,21 +429,18 @@ int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info) crypto_free_shash(tfm); if (ret) { - dev_err(&fw_info->ndev->nfc_dev->dev, - "Cannot compute hash (code=%d)\n", ret); + dev_err(dev, "Cannot compute hash (code=%d)\n", ret); return ret; } /* Firmware update process */ - dev_info(&fw_info->ndev->nfc_dev->dev, - "Firmware update: %s\n", fw_info->fw_name); + dev_info(dev, "Firmware update: %s\n", fw_info->fw_name); ret = s3fwrn5_fw_enter_update_mode(fw_info, hash_data, SHA1_DIGEST_SIZE, fw_info->sig, fw_info->sig_size); if (ret < 0) { - dev_err(&fw_info->ndev->nfc_dev->dev, - "Unable to enter update mode\n"); + dev_err(dev, "Unable to enter update mode\n"); return ret; } @@ -452,21 +448,18 @@ int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info) ret = s3fwrn5_fw_update_sector(fw_info, fw_info->base_addr + off, fw->image + off); if (ret < 0) { - dev_err(&fw_info->ndev->nfc_dev->dev, - "Firmware update error (code=%d)\n", ret); + dev_err(dev, "Firmware update error (code=%d)\n", ret); return ret; } } ret = s3fwrn5_fw_complete_update_mode(fw_info); if (ret < 0) { - dev_err(&fw_info->ndev->nfc_dev->dev, - "Unable to complete update mode\n"); + dev_err(dev, "Unable to complete update mode\n"); return ret; } - dev_info(&fw_info->ndev->nfc_dev->dev, - "Firmware update: success\n"); + dev_info(dev, "Firmware update: success\n"); return ret; } diff --git a/drivers/nfc/s3fwrn5/nci.c b/drivers/nfc/s3fwrn5/nci.c index e374e670b36b..ca6828f55ba0 100644 --- a/drivers/nfc/s3fwrn5/nci.c +++ b/drivers/nfc/s3fwrn5/nci.c @@ -47,6 +47,7 @@ const struct nci_driver_ops s3fwrn5_nci_prop_ops[4] = { int s3fwrn5_nci_rf_configure(struct s3fwrn5_info *info, const char *fw_name) { + struct device *dev = &info->ndev->nfc_dev->dev; const struct firmware *fw; struct nci_prop_fw_cfg_cmd fw_cfg; struct nci_prop_set_rfreg_cmd set_rfreg; @@ -55,7 +56,7 @@ int s3fwrn5_nci_rf_configure(struct s3fwrn5_info *info, const char *fw_name) int i, len; int ret; - ret = request_firmware(&fw, fw_name, &info->ndev->nfc_dev->dev); + ret = request_firmware(&fw, fw_name, dev); if (ret < 0) return ret; @@ -77,13 +78,11 @@ int s3fwrn5_nci_rf_configure(struct s3fwrn5_info *info, const char *fw_name) /* Start rfreg configuration */ - dev_info(&info->ndev->nfc_dev->dev, - "rfreg configuration update: %s\n", fw_name); + dev_info(dev, "rfreg configuration update: %s\n", fw_name); ret = nci_prop_cmd(info->ndev, NCI_PROP_START_RFREG, 0, NULL); if (ret < 0) { - dev_err(&info->ndev->nfc_dev->dev, - "Unable to start rfreg update\n"); + dev_err(dev, "Unable to start rfreg update\n"); goto out; } @@ -97,8 +96,7 @@ int s3fwrn5_nci_rf_configure(struct s3fwrn5_info *info, const char *fw_name) ret = nci_prop_cmd(info->ndev, NCI_PROP_SET_RFREG, len+1, (__u8 *)&set_rfreg); if (ret < 0) { - dev_err(&info->ndev->nfc_dev->dev, - "rfreg update error (code=%d)\n", ret); + dev_err(dev, "rfreg update error (code=%d)\n", ret); goto out; } set_rfreg.index++; @@ -110,13 +108,11 @@ int s3fwrn5_nci_rf_configure(struct s3fwrn5_info *info, const char *fw_name) ret = nci_prop_cmd(info->ndev, NCI_PROP_STOP_RFREG, sizeof(stop_rfreg), (__u8 *)&stop_rfreg); if (ret < 0) { - dev_err(&info->ndev->nfc_dev->dev, - "Unable to stop rfreg update\n"); + dev_err(dev, "Unable to stop rfreg update\n"); goto out; } - dev_info(&info->ndev->nfc_dev->dev, - "rfreg configuration update: success\n"); + dev_info(dev, "rfreg configuration update: success\n"); out: release_firmware(fw); return ret;