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From:   Kalle Valo <kvalo@kernel.org>
To:     linux-wireless@vger.kernel.org
Subject: [PATCH 2/3] wifi: ipw2x00: fix format-truncation warnings
Date:   Thu, 12 Oct 2023 16:58:53 +0300
Message-Id: <20231012135854.3473332-2-kvalo@kernel.org>
In-Reply-To: <20231012135854.3473332-1-kvalo@kernel.org>
References: <20231012135854.3473332-1-kvalo@kernel.org>
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On v6.6-rc4 with GCC 13.2 I see:

drivers/net/wireless/intel/ipw2x00/ipw2100.c:5905:63: warning: '%s' directive output may be truncated writing up to 63 bytes into a region of size 32 [-Wformat-truncation=]
drivers/net/wireless/intel/ipw2x00/ipw2100.c:5905:9: note: 'snprintf' output between 4 and 140 bytes into a destination of size 32
drivers/net/wireless/intel/ipw2x00/ipw2200.c:10392:63: warning: '%s' directive output may be truncated writing up to 63 bytes into a region of size 32 [-Wformat-truncation=]
drivers/net/wireless/intel/ipw2x00/ipw2200.c:10392:9: note: 'snprintf' output between 4 and 98 bytes into a destination of size 32

Fix this by copying only the firmware version and not providing any extra
information via ethtool. This is an ancient driver anyway and most likely
removed soon so it doesn't really matter.

Compile tested only.

Signed-off-by: Kalle Valo <kvalo@kernel.org>
---
 drivers/net/wireless/intel/ipw2x00/ipw2100.c | 20 ++------------------
 drivers/net/wireless/intel/ipw2x00/ipw2200.c |  6 +-----
 2 files changed, 3 insertions(+), 23 deletions(-)

diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
index 0812db8936f1..b6636002c7d2 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
@@ -317,8 +317,6 @@ static int ipw2100_get_firmware(struct ipw2100_priv *priv,
 				struct ipw2100_fw *fw);
 static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
 				 size_t max);
-static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
-				    size_t max);
 static void ipw2100_release_firmware(struct ipw2100_priv *priv,
 				     struct ipw2100_fw *fw);
 static int ipw2100_ucode_download(struct ipw2100_priv *priv,
@@ -5894,17 +5892,14 @@ static void ipw_ethtool_get_drvinfo(struct net_device *dev,
 				    struct ethtool_drvinfo *info)
 {
 	struct ipw2100_priv *priv = libipw_priv(dev);
-	char fw_ver[64], ucode_ver[64];
+	char fw_ver[64];
 
 	strscpy(info->driver, DRV_NAME, sizeof(info->driver));
 	strscpy(info->version, DRV_VERSION, sizeof(info->version));
 
 	ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
-	ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
-
-	snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
-		 fw_ver, priv->eeprom_version, ucode_ver);
 
+	strscpy(info->fw_version, fw_ver, sizeof(info->fw_version));
 	strscpy(info->bus_info, pci_name(priv->pci_dev),
 		sizeof(info->bus_info));
 }
@@ -8406,17 +8401,6 @@ static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
 	return tmp;
 }
 
-static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
-				    size_t max)
-{
-	u32 ver;
-	u32 len = sizeof(ver);
-	/* microcode version is a 32 bit integer */
-	if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
-		return -EIO;
-	return snprintf(buf, max, "%08X", ver);
-}
-
 /*
  * On exit, the firmware will have been freed from the fw list
  */
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
index 820100cac491..902a772f4649 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
@@ -10378,7 +10378,6 @@ static void ipw_ethtool_get_drvinfo(struct net_device *dev,
 {
 	struct ipw_priv *p = libipw_priv(dev);
 	char vers[64];
-	char date[32];
 	u32 len;
 
 	strscpy(info->driver, DRV_NAME, sizeof(info->driver));
@@ -10386,11 +10385,8 @@ static void ipw_ethtool_get_drvinfo(struct net_device *dev,
 
 	len = sizeof(vers);
 	ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
-	len = sizeof(date);
-	ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
 
-	snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)",
-		 vers, date);
+	strscpy(info->fw_version, vers, sizeof(info->fw_version));
 	strscpy(info->bus_info, pci_name(p->pci_dev),
 		sizeof(info->bus_info));
 }
-- 
2.39.2