From: Martin Kaiser <martin@kaiser.cx>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
Phillip Potter <phil@philpotter.co.uk>,
Michael Straube <straube.linux@gmail.com>,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
David Laight <David.Laight@ACULAB.COM>,
Martin Kaiser <martin@kaiser.cx>,
kernel test robot <lkp@intel.com>
Subject: [PATCH v2 1/9] staging: r8188eu: use ieee80211 define for version check
Date: Sun, 27 Mar 2022 20:09:36 +0200 [thread overview]
Message-ID: <20220327180944.712545-2-martin@kaiser.cx> (raw)
In-Reply-To: <20220327180944.712545-1-martin@kaiser.cx>
Use the IEEE80211_FCTL_VERS define to check the version number
of a received frame.
Covert IEEE80211_FCTL_VERS to le16 before using it as a mask for fc,
which is also an le16 value. The ieee80211_... helper functions use
the same approach.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
---
v2
- fix a sparse warning, conver IEEE80211_FCTL_VERS to little endian
drivers/staging/r8188eu/core/rtw_recv.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/staging/r8188eu/core/rtw_recv.c b/drivers/staging/r8188eu/core/rtw_recv.c
index 8800ea4825ff..fc7f2a559f9b 100644
--- a/drivers/staging/r8188eu/core/rtw_recv.c
+++ b/drivers/staging/r8188eu/core/rtw_recv.c
@@ -1063,7 +1063,6 @@ static int validate_recv_frame(struct adapter *adapter, struct recv_frame *precv
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
u8 *ptr = precv_frame->rx_data;
__le16 fc = *(__le16 *)ptr;
- u8 ver = (unsigned char)(*ptr) & 0x3;
struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
if (pmlmeext->sitesurvey_res.state == SCAN_PROCESS) {
@@ -1072,8 +1071,7 @@ static int validate_recv_frame(struct adapter *adapter, struct recv_frame *precv
pmlmeext->channel_set[ch_set_idx].rx_count++;
}
- /* add version chk */
- if (ver != 0)
+ if ((fc & cpu_to_le16(IEEE80211_FCTL_VERS)) != 0)
return _FAIL;
pattrib->to_fr_ds = get_tofr_ds(ptr);
--
2.30.2
next prev parent reply other threads:[~2022-03-27 18:10 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-23 7:48 [PATCH 0/7] staging: r8188eu: use ieee80211 helpers for parsing Martin Kaiser
2022-03-23 7:48 ` [PATCH 1/7] staging: r8188eu: use ieee80211 define for version check Martin Kaiser
2022-03-23 14:28 ` David Laight
2022-03-27 18:19 ` Martin Kaiser
2022-03-23 23:59 ` kernel test robot
2022-03-23 7:48 ` [PATCH 2/7] staging: r8188eu: use ieee80211 helper to read the pwr bit Martin Kaiser
2022-03-23 7:48 ` [PATCH 3/7] staging: r8188eu: use standard mechanisms for control frames Martin Kaiser
2022-03-23 7:48 ` [PATCH 4/7] staging: r8188eu: use standard mechanisms for data frames Martin Kaiser
2022-03-23 7:48 ` [PATCH 5/7] staging: r8188eu: use standard mechanisms for qos " Martin Kaiser
2022-03-23 7:48 ` [PATCH 6/7] staging: r8188eu: remove unused data frame subtypes Martin Kaiser
2022-03-23 7:48 ` [PATCH 7/7] staging: r8188eu: remove unused control " Martin Kaiser
2022-03-27 18:09 ` [PATCH v2 0/9] staging: r8188eu: use ieee80211 helpers for parsing Martin Kaiser
2022-03-27 18:09 ` Martin Kaiser [this message]
2022-03-27 18:09 ` [PATCH v2 2/9] staging: r8188eu: use ieee80211 helper to read the pwr bit Martin Kaiser
2022-03-27 18:09 ` [PATCH v2 3/9] staging: r8188eu: use standard mechanisms for control frames Martin Kaiser
2022-03-27 18:09 ` [PATCH v2 4/9] staging: r8188eu: use standard mechanisms for data frames Martin Kaiser
2022-03-27 18:09 ` [PATCH v2 5/9] staging: r8188eu: use standard mechanisms for qos " Martin Kaiser
2022-03-27 18:09 ` [PATCH v2 6/9] staging: r8188eu: remove unused data frame subtypes Martin Kaiser
2022-03-27 18:09 ` [PATCH v2 7/9] staging: r8188eu: remove unused control " Martin Kaiser
2022-03-27 18:09 ` [PATCH v2 8/9] staging: r8188eu: use ieee80211 macro for sequence number Martin Kaiser
2022-03-27 18:09 ` [PATCH v2 9/9] staging: r8188eu: use ieee80211 define for fragment number Martin Kaiser
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