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authorArend van Spriel <arend@broadcom.com>2013-04-05 10:57:54 +0200
committerJohn W. Linville <linville@tuxdriver.com>2013-04-08 15:28:48 -0400
commitdeb09280cd72ceb8b0679490f076d0e9f30dd456 (patch)
treeff8049302ee06d88343df9ff70735e4bf76d94a8 /drivers/net/wireless/brcm80211
parent5b57af6ef7d087f58b2603796f594659f3978bff (diff)
brcmfmac: only use ifidx from BDC header in brcmf_rx_frames()
In brcmf_rx_frames() the call to brcmf_fweh_process_skb() could change the ifidx using information in the event data. This is only different to the BDC ifidx for IF ADD event. However, the creation of the new interface is deferred to event worker so it does not exist. After brcmf_fweh_process_skb() it is only used to set statistics. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c9
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/fweh.c6
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/fweh.h6
3 files changed, 7 insertions, 14 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index e68500bb63e7..763a84eba216 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -323,13 +323,8 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
/* Strip header, count, deliver upward */
skb_pull(skb, ETH_HLEN);
- /* Process special event packets and then discard them */
- brcmf_fweh_process_skb(drvr, skb, &ifidx);
-
- if (drvr->iflist[ifidx]) {
- ifp = drvr->iflist[ifidx];
- ifp->ndev->last_rx = jiffies;
- }
+ /* Process special event packets */
+ brcmf_fweh_process_skb(drvr, skb);
if (!(ifp->ndev->flags & IFF_UP)) {
brcmu_pkt_buf_free_skb(skb);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
index 51ba13d243a5..5a64280e6485 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
@@ -407,13 +407,12 @@ int brcmf_fweh_activate_events(struct brcmf_if *ifp)
*
* @drvr: driver information object.
* @event_packet: event packet to process.
- * @ifidx: index of the firmware interface (may change).
*
* If the packet buffer contains a firmware event message it will
* dispatch the event to a registered handler (using worker).
*/
void brcmf_fweh_process_event(struct brcmf_pub *drvr,
- struct brcmf_event *event_packet, u8 *ifidx)
+ struct brcmf_event *event_packet)
{
enum brcmf_fweh_event_code code;
struct brcmf_fweh_info *fweh = &drvr->fweh;
@@ -425,7 +424,6 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
/* get event info */
code = get_unaligned_be32(&event_packet->msg.event_type);
datalen = get_unaligned_be32(&event_packet->msg.datalen);
- *ifidx = event_packet->msg.ifidx;
data = &event_packet[1];
if (code >= BRCMF_E_LAST)
@@ -442,7 +440,7 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
return;
event->code = code;
- event->ifidx = *ifidx;
+ event->ifidx = event_packet->msg.ifidx;
/* use memcpy to get aligned event message */
memcpy(&event->emsg, &event_packet->msg, sizeof(event->emsg));
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
index 8c39b51dcccf..6ec5db9c60a5 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
@@ -187,10 +187,10 @@ void brcmf_fweh_unregister(struct brcmf_pub *drvr,
enum brcmf_fweh_event_code code);
int brcmf_fweh_activate_events(struct brcmf_if *ifp);
void brcmf_fweh_process_event(struct brcmf_pub *drvr,
- struct brcmf_event *event_packet, u8 *ifidx);
+ struct brcmf_event *event_packet);
static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr,
- struct sk_buff *skb, u8 *ifidx)
+ struct sk_buff *skb)
{
struct brcmf_event *event_packet;
u8 *data;
@@ -213,7 +213,7 @@ static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr,
if (usr_stype != BCMILCP_BCM_SUBTYPE_EVENT)
return;
- brcmf_fweh_process_event(drvr, event_packet, ifidx);
+ brcmf_fweh_process_event(drvr, event_packet);
}
#endif /* FWEH_H_ */