staging: r8188eu: read capability info from struct ieee80211_mgmt

Read the capability info of the association response message from struct
ieee80211_mgmt. This should be easier to understand and to review than
calculating the offset manually.

Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220806111352.690650-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 53444cb1dba93700e122efcc7047c7c0c3b4f997..0a78b8bbb66adea1d8701387662882caed13a400 100644 (file)
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -1348,8 +1348,7 @@ unsigned int OnAssocRsp(struct adapter *padapter, struct recv_frame *precv_frame
                goto report_assoc_result;
        }
 
-       /* get capabilities */
-       pmlmeinfo->capability = le16_to_cpu(*(__le16 *)(pframe + WLAN_HDR_A3_LEN));
+       pmlmeinfo->capability = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
 
        /* set slot time */
        pmlmeinfo->slotTime = (pmlmeinfo->capability & BIT(10)) ? 9 : 20;