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Message-Id: <20211011133835.236347-4-krzysztof.kozlowski@canonical.com>
Date: Mon, 11 Oct 2021 15:38:31 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Krzysztof Opasiak <k.opasiak@...sung.com>,
Mark Greer <mgreer@...malcreek.com>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, linux-nfc@...ts.01.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-wireless@...r.kernel.org
Cc: joe@...ches.com
Subject: [PATCH v3 3/7] nfc: s3fwrn5: simplify dereferencing pointer to struct device
Simplify the code dereferencing several pointers to reach the struct
device.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
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;
--
2.30.2
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