[PATCH v2] staging: wilc1000: Fix sparse warnings incorrect type assignment

[PATCH v2] staging: wilc1000: Fix sparse warnings incorrect type assignment

[Andrea Ghittino]

Fixed sparse warnings related to the conversion of le16 and le32 to u16 and u32, during the update of internal structures

Fixed sparse warnings:
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52: warning: incorrect type in assignment (different base types)
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52:    expected unsigned short [unsigned] [assigned] [usertype] ht_ext_params
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52:    got restricted __le16 const [usertype] extended_ht_cap_info
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51: warning: incorrect type in assignment (different base types)
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51:    expected unsigned int [unsigned] [assigned] [usertype] ht_tx_bf_cap
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51:    got restricted __le32 const [usertype] tx_BF_cap_info
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51: warning: incorrect type in assignment (different base types)
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51:    expected unsigned short [unsigned] [assigned] [usertype] ht_capa_info
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51:    got restricted __le16 const [usertype] cap_info
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52: warning: incorrect type in assignment (different base types)
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52:    expected unsigned short [unsigned] [assigned] [usertype] ht_ext_params
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52:    got restricted __le16 const [usertype] extended_ht_cap_info
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51: warning: incorrect type in assignment (different base types)
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51:    expected unsigned int [unsigned] [assigned] [usertype] ht_tx_bf_cap
drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51:    got restricted __le32 const [usertype] tx_BF_cap_info


Signed-off-by: Andrea Ghittino <aghittino@gmail.com>
---
changelog:
v2) Changed patch desacription

Compile tested only

 wilc_wfi_cfgoperations.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index 7961d1c..d3b5ac8 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -2003,13 +2003,13 @@ static int add_station(struct wiphy *wiphy, struct net_device *dev,
 			strStaParams.ht_supported = false;
 		} else {
 			strStaParams.ht_supported = true;
-			strStaParams.ht_capa_info = params->ht_capa->cap_info;
+			strStaParams.ht_capa_info = le16_to_cpu(params->ht_capa->cap_info);
 			strStaParams.ht_ampdu_params = params->ht_capa->ampdu_params_info;
 			memcpy(strStaParams.ht_supp_mcs_set,
 			       &params->ht_capa->mcs,
 			       WILC_SUPP_MCS_SET_SIZE);
-			strStaParams.ht_ext_params = params->ht_capa->extended_ht_cap_info;
-			strStaParams.ht_tx_bf_cap = params->ht_capa->tx_BF_cap_info;
+			strStaParams.ht_ext_params = le16_to_cpu(params->ht_capa->extended_ht_cap_info);
+			strStaParams.ht_tx_bf_cap = le32_to_cpu(params->ht_capa->tx_BF_cap_info);
 			strStaParams.ht_ante_sel = params->ht_capa->antenna_selection_info;
 		}
 
@@ -2075,13 +2075,13 @@ static int change_station(struct wiphy *wiphy, struct net_device *dev,
 			strStaParams.ht_supported = false;
 		} else {
 			strStaParams.ht_supported = true;
-			strStaParams.ht_capa_info = params->ht_capa->cap_info;
+			strStaParams.ht_capa_info = le16_to_cpu(params->ht_capa->cap_info);
 			strStaParams.ht_ampdu_params = params->ht_capa->ampdu_params_info;
 			memcpy(strStaParams.ht_supp_mcs_set,
 			       &params->ht_capa->mcs,
 			       WILC_SUPP_MCS_SET_SIZE);
-			strStaParams.ht_ext_params = params->ht_capa->extended_ht_cap_info;
-			strStaParams.ht_tx_bf_cap = params->ht_capa->tx_BF_cap_info;
+			strStaParams.ht_ext_params = le16_to_cpu(params->ht_capa->extended_ht_cap_info);
+			strStaParams.ht_tx_bf_cap = le32_to_cpu(params->ht_capa->tx_BF_cap_info);
 			strStaParams.ht_ante_sel = params->ht_capa->antenna_selection_info;
 		}
 

Re: [PATCH v2] staging: wilc1000: Fix sparse warnings incorrect type assignment

[Dan Carpenter]

I think this change is buggy.

On Tue, Mar 07, 2017 at 10:36:53PM +0100, Andrea Ghittino wrote:
> Fixed sparse warnings related to the conversion of le16 and le32 to u16 and u32, during the update of internal structures
> 
> Fixed sparse warnings:
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52: warning: incorrect type in assignment (different base types)
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52:    expected unsigned short [unsigned] [assigned] [usertype] ht_ext_params
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52:    got restricted __le16 const [usertype] extended_ht_cap_info
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51: warning: incorrect type in assignment (different base types)
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51:    expected unsigned int [unsigned] [assigned] [usertype] ht_tx_bf_cap
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51:    got restricted __le32 const [usertype] tx_BF_cap_info
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51: warning: incorrect type in assignment (different base types)
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51:    expected unsigned short [unsigned] [assigned] [usertype] ht_capa_info
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51:    got restricted __le16 const [usertype] cap_info
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52: warning: incorrect type in assignment (different base types)
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52:    expected unsigned short [unsigned] [assigned] [usertype] ht_ext_params
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52:    got restricted __le16 const [usertype] extended_ht_cap_info
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51: warning: incorrect type in assignment (different base types)
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51:    expected unsigned int [unsigned] [assigned] [usertype] ht_tx_bf_cap
> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51:    got restricted __le32 const [usertype] tx_BF_cap_info
> 

What I want in a changelog is:  "We're copying data that's little endian
from (some place) to where ever and then we (whatever) do math using the
variable so it needs to be CPU endian.  Presumably this wasn't caught
in testing because it was only used on x86 or other little endian
systems."

In this case we're copying little endian data and then sending it
directly back to some place which requires little endian data so
converting it is a bug.

regards,
dan carpenter

Re: [PATCH v2] staging: wilc1000: Fix sparse warnings incorrect type assignment

[Andrea Ghittino]

Thank you for your time
regard,

andrea

On Wed, Mar 8, 2017 at 7:22 AM, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> I think this change is buggy.
>
> On Tue, Mar 07, 2017 at 10:36:53PM +0100, Andrea Ghittino wrote:
>> Fixed sparse warnings related to the conversion of le16 and le32 to u16 and u32, during the update of internal structures
>>
>> Fixed sparse warnings:
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52: warning: incorrect type in assignment (different base types)
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52:    expected unsigned short [unsigned] [assigned] [usertype] ht_ext_params
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2011:52:    got restricted __le16 const [usertype] extended_ht_cap_info
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51: warning: incorrect type in assignment (different base types)
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51:    expected unsigned int [unsigned] [assigned] [usertype] ht_tx_bf_cap
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2012:51:    got restricted __le32 const [usertype] tx_BF_cap_info
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51: warning: incorrect type in assignment (different base types)
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51:    expected unsigned short [unsigned] [assigned] [usertype] ht_capa_info
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2078:51:    got restricted __le16 const [usertype] cap_info
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52: warning: incorrect type in assignment (different base types)
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52:    expected unsigned short [unsigned] [assigned] [usertype] ht_ext_params
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2083:52:    got restricted __le16 const [usertype] extended_ht_cap_info
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51: warning: incorrect type in assignment (different base types)
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51:    expected unsigned int [unsigned] [assigned] [usertype] ht_tx_bf_cap
>> drivers/staging/wilc1000//wilc_wfi_cfgoperations.c:2084:51:    got restricted __le32 const [usertype] tx_BF_cap_info
>>
>
> What I want in a changelog is:  "We're copying data that's little endian
> from (some place) to where ever and then we (whatever) do math using the
> variable so it needs to be CPU endian.  Presumably this wasn't caught
> in testing because it was only used on x86 or other little endian
> systems."
>
> In this case we're copying little endian data and then sending it
> directly back to some place which requires little endian data so
> converting it is a bug.
>
> regards,
> dan carpenter