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Miller" , Jakub Kicinski , linux-nfc@lists.01.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org Subject: [PATCH 09/15] nfc: s3fwrn5: simplify dereferencing pointer to struct device Date: Tue, 7 Sep 2021 14:18:10 +0200 Message-Id: <20210907121816.37750-10-krzysztof.kozlowski@canonical.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210907121816.37750-1-krzysztof.kozlowski@canonical.com> References: <20210907121816.37750-1-krzysztof.kozlowski@canonical.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@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;