linux-kernel - Re: [PATCH] staging: ks7010: use little-endian types

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Date:   Mon, 12 Jun 2017 10:24:14 +1000
From:   "Tobin C. Harding" <me@...in.cc>
To:     Perry Hooker <perry.hooker@...il.com>
Cc:     gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: ks7010: use little-endian types

On Thu, Jun 08, 2017 at 11:06:54PM -0600, Perry Hooker wrote:
> This patch fixes a number of sparse warnings of the form:
> drivers/staging/ks7010/ks_hostif.c:2187:29:
> 	warning: incorrect type in assignment (different base types)
> generated when storing little-endian data in variables
> that do not have a specified endianness.
> 
> Signed-off-by: Perry Hooker <perry.hooker@...il.com>

For what it's worth

 Reviewed-By: Tobin C. Harding <me@...in.cc>

> ---
>  drivers/staging/ks7010/ks_hostif.c | 24 +++++++++++++-----------
>  1 file changed, 13 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/staging/ks7010/ks_hostif.c b/drivers/staging/ks7010/ks_hostif.c
> index 697347b..db01a48 100644
> --- a/drivers/staging/ks7010/ks_hostif.c
> +++ b/drivers/staging/ks7010/ks_hostif.c
> @@ -1821,7 +1821,7 @@ void hostif_receive(struct ks_wlan_private *priv, unsigned char *p,
>  static
>  void hostif_sme_set_wep(struct ks_wlan_private *priv, int type)
>  {
> -	u32 val;
> +	__le32 val;
>  
>  	switch (type) {
>  	case SME_WEP_INDEX_REQUEST:
> @@ -1870,13 +1870,13 @@ void hostif_sme_set_wep(struct ks_wlan_private *priv, int type)
>  }
>  
>  struct wpa_suite_t {
> -	unsigned short size;
> +	__le16 size;
>  	unsigned char suite[4][CIPHER_ID_LEN];
>  } __packed;
>  
>  struct rsn_mode_t {
> -	u32 rsn_mode;
> -	u16 rsn_capability;
> +	__le32 rsn_mode;
> +	__le16 rsn_capability;
>  } __packed;
>  
>  static
> @@ -1884,7 +1884,7 @@ void hostif_sme_set_rsn(struct ks_wlan_private *priv, int type)
>  {
>  	struct wpa_suite_t wpa_suite;
>  	struct rsn_mode_t rsn_mode;
> -	u32 val;
> +	__le32 val;
>  
>  	memset(&wpa_suite, 0, sizeof(wpa_suite));
>  
> @@ -1936,7 +1936,8 @@ void hostif_sme_set_rsn(struct ks_wlan_private *priv, int type)
>  
>  		hostif_mib_set_request(priv, DOT11_RSN_CONFIG_UNICAST_CIPHER,
>  				       sizeof(wpa_suite.size) +
> -				       CIPHER_ID_LEN * wpa_suite.size,
> +				       CIPHER_ID_LEN *
> +				       le16_to_cpu(wpa_suite.size),
>  				       MIB_VALUE_TYPE_OSTRING, &wpa_suite);
>  		break;
>  	case SME_RSN_MCAST_REQUEST:
> @@ -2028,7 +2029,8 @@ void hostif_sme_set_rsn(struct ks_wlan_private *priv, int type)
>  
>  		hostif_mib_set_request(priv, DOT11_RSN_CONFIG_AUTH_SUITE,
>  				       sizeof(wpa_suite.size) +
> -				       KEY_MGMT_ID_LEN * wpa_suite.size,
> +				       KEY_MGMT_ID_LEN *
> +				       le16_to_cpu(wpa_suite.size),
>  				       MIB_VALUE_TYPE_OSTRING, &wpa_suite);
>  		break;
>  	case SME_RSN_ENABLED_REQUEST:
> @@ -2165,7 +2167,7 @@ void hostif_sme_multicast_set(struct ks_wlan_private *priv)
>  	int mc_count;
>  	struct netdev_hw_addr *ha;
>  	char set_address[NIC_MAX_MCAST_LIST * ETH_ALEN];
> -	unsigned long filter_type;
> +	__le32 filter_type;
>  	int i = 0;
>  
>  	DPRINTK(3, "\n");
> @@ -2276,7 +2278,7 @@ void hostif_sme_sleep_set(struct ks_wlan_private *priv)
>  static
>  void hostif_sme_set_key(struct ks_wlan_private *priv, int type)
>  {
> -	u32 val;
> +	__le32 val;
>  
>  	switch (type) {
>  	case SME_SET_FLAG:
> @@ -2335,7 +2337,7 @@ static
>  void hostif_sme_set_pmksa(struct ks_wlan_private *priv)
>  {
>  	struct pmk_cache_t {
> -		u16 size;
> +		__le16 size;
>  		struct {
>  			u8 bssid[ETH_ALEN];
>  			u8 pmkid[IW_PMKID_LEN];
> @@ -2366,7 +2368,7 @@ void hostif_sme_set_pmksa(struct ks_wlan_private *priv)
>  static
>  void hostif_sme_execute(struct ks_wlan_private *priv, int event)
>  {
> -	u32 val;
> +	__le32 val;
>  
>  	DPRINTK(3, "event=%d\n", event);
>  	switch (event) {
> -- 
> 2.4.11
>