linux-kernel - [PATCH v4 1/3] mwifiex: Use a define for firmware version string length

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Date:   Wed,  3 Nov 2021 21:17:58 +0100
From:   Jonas Dreßler <verdre@...d.nl>
To:     Amitkumar Karwar <amitkarwar@...il.com>,
        Ganapathi Bhat <ganapathi017@...il.com>,
        Xinming Hu <huxinming820@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     Jonas Dreßler <verdre@...d.nl>,
        Tsuchiya Yuto <kitakar@...il.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Maximilian Luz <luzmaximilian@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Pali Rohár <pali@...nel.org>
Subject: [PATCH v4 1/3] mwifiex: Use a define for firmware version string length

Since the version string we get from the firmware is always 128
characters long, use a define for this size instead of having the number
128 copied all over the place.

Signed-off-by: Jonas Dreßler <verdre@...d.nl>
---
 drivers/net/wireless/marvell/mwifiex/fw.h          | 4 +++-
 drivers/net/wireless/marvell/mwifiex/main.h        | 2 +-
 drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c | 5 +++--
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h
index 2ff23ab259ab..63c25c69ed2b 100644
--- a/drivers/net/wireless/marvell/mwifiex/fw.h
+++ b/drivers/net/wireless/marvell/mwifiex/fw.h
@@ -2071,9 +2071,11 @@ struct mwifiex_ie_types_robust_coex {
 	__le32 mode;
 } __packed;
 
+#define MWIFIEX_VERSION_STR_LENGTH  128
+
 struct host_cmd_ds_version_ext {
 	u8 version_str_sel;
-	char version_str[128];
+	char version_str[MWIFIEX_VERSION_STR_LENGTH];
 } __packed;
 
 struct host_cmd_ds_mgmt_frame_reg {
diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h
index 90012cbcfd15..65609ea2327e 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.h
+++ b/drivers/net/wireless/marvell/mwifiex/main.h
@@ -646,7 +646,7 @@ struct mwifiex_private {
 	struct wireless_dev wdev;
 	struct mwifiex_chan_freq_power cfp;
 	u32 versionstrsel;
-	char version_str[128];
+	char version_str[MWIFIEX_VERSION_STR_LENGTH];
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *dfs_dev_dir;
 #endif
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
index 6b5d35d9e69f..20b69a37f9e1 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
@@ -711,8 +711,9 @@ static int mwifiex_ret_ver_ext(struct mwifiex_private *priv,
 	if (version_ext) {
 		version_ext->version_str_sel = ver_ext->version_str_sel;
 		memcpy(version_ext->version_str, ver_ext->version_str,
-		       sizeof(char) * 128);
-		memcpy(priv->version_str, ver_ext->version_str, 128);
+		       MWIFIEX_VERSION_STR_LENGTH);
+		memcpy(priv->version_str, ver_ext->version_str,
+		       MWIFIEX_VERSION_STR_LENGTH);
 	}
 	return 0;
 }
-- 
2.33.1