[PATCH 28/57] staging: rtl8192u: ieee80211_softmac: Move a large data struct onto the heap

From: Lee Jones
Date: Wed Apr 14 2021 - 14:13:35 EST


Fixes the following W=1 kernel build warning(s):

drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_rx_frame_softmac’:
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:2009:1: warning: the frame size of 1152 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Romain Perier <romain.perier@xxxxxxxxx>
Cc: Allen Pais <apais@xxxxxxxxxxxxxxxxxxx>
Cc: Andrea Merello <andrea.merello@xxxxxxxxx>
Cc: linux-staging@xxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index 690b664df8fae..73f63d4510e77 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -1911,8 +1911,11 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATED &&
ieee->iw_mode == IW_MODE_INFRA) {
- struct ieee80211_network network_resp;
- struct ieee80211_network *network = &network_resp;
+ struct ieee80211_network *network;
+
+ network = kzalloc(sizeof(*network), GFP_KERNEL);
+ if (!network)
+ return -ENOMEM;

errcode = assoc_parse(ieee, skb, &aid);
if (!errcode) {
@@ -1923,7 +1926,6 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
/* Let the register setting defaultly with Legacy station */
if (ieee->qos_support) {
assoc_resp = (struct ieee80211_assoc_response_frame *)skb->data;
- memset(network, 0, sizeof(*network));
if (ieee80211_parse_info_param(ieee, assoc_resp->info_element,\
rx_stats->len - sizeof(*assoc_resp), \
network, rx_stats)) {
@@ -1949,6 +1951,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
else
ieee80211_associate_abort(ieee);
}
+ kfree(network);
}
break;

--
2.27.0