diff options
| author | David Decotigny <ddecotig@gmail.com> | 2015-06-07 17:43:01 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-06-08 13:23:52 -0700 |
| commit | af17b56d1f42bd761709ec68a00ce4f1a089e597 (patch) | |
| tree | 71dcf6a2db35b07bfcacb27c30db1198033abfff /drivers | |
| parent | e6ffd1ba55a4931c429448cc69db5e7152921c85 (diff) | |
staging: rtl8723au: core: avoid bitwise arithmetic with forced endianness
This fixes bitwise arithmetic performed on the host on a variable
previously converted to little-endian, and subsequently converted
again to little-endian:
- issue_action_BA23a() called with "status" crafted in host byte order
- "status" converted to LE
- bitwise arithmetic on the (LE) "status", performed with masks and
shifts in host byte order
- result converted to LE (again) and stored in device structure
Sparse warning addressed by this patch:
drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3806:16: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3806:16: expected unsigned short [unsigned] status
drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3806:16: got restricted __le16 [usertype] <noident>
Additional notes: initial cpu_to_le16 was introduced by kernel bulk
commit 5e93f3520 "staging: r8723au: Add source files for new driver
- part 1", initially from github according to commit description. On
github, this traces back to another bulk commit: 2896bda04353 "Add
new files in core directory", which is the 1st version of the
driver.
Signed-off-by: David Decotigny <ddecotig@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/rtl8723au/core/rtw_mlme_ext.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c index 196beafde6f0..7c3b5dd177d2 100644 --- a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c @@ -3803,8 +3803,6 @@ void issue_action_BA23a(struct rtw_adapter *padapter, pattrib->pktlen = sizeof(struct ieee80211_hdr_3addr) + 1; - status = cpu_to_le16(status); - switch (action) { case WLAN_ACTION_ADDBA_REQ: pattrib->pktlen += sizeof(mgmt->u.action.u.addba_req); |