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authorJohannes Berg <johannes.berg@intel.com>2017-06-16 14:29:21 +0200
committerDavid S. Miller <davem@davemloft.net>2017-06-16 11:48:39 -0400
commit4df864c1d9afb46e2461a9f808d9f11a42d31bad (patch)
tree07e7b3d16b161e0d199c5b8116df277798566e4f /drivers/net/wireless/marvell
parent59ae1d127ac0ae404baf414c434ba2651b793f46 (diff)
downloadop-kernel-dev-4df864c1d9afb46e2461a9f808d9f11a42d31bad.zip
op-kernel-dev-4df864c1d9afb46e2461a9f808d9f11a42d31bad.tar.gz
networking: make skb_put & friends return void pointers
It seems like a historic accident that these return unsigned char *, and in many places that means casts are required, more often than not. Make these functions (skb_put, __skb_put and pskb_put) return void * and remove all the casts across the tree, adding a (u8 *) cast only where the unsigned char pointer was used directly, all done with the following spatch: @@ expression SKB, LEN; typedef u8; identifier fn = { skb_put, __skb_put }; @@ - *(fn(SKB, LEN)) + *(u8 *)fn(SKB, LEN) @@ expression E, SKB, LEN; identifier fn = { skb_put, __skb_put }; type T; @@ - E = ((T *)(fn(SKB, LEN))) + E = fn(SKB, LEN) which actually doesn't cover pskb_put since there are only three users overall. A handful of stragglers were converted manually, notably a macro in drivers/isdn/i4l/isdn_bsdcomp.c and, oddly enough, one of the many instances in net/bluetooth/hci_sock.c. In the former file, I also had to fix one whitespace problem spatch introduced. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireless/marvell')
-rw-r--r--drivers/net/wireless/marvell/mwifiex/11n_aggr.c2
-rw-r--r--drivers/net/wireless/marvell/mwifiex/tdls.c38
2 files changed, 20 insertions, 20 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/11n_aggr.c b/drivers/net/wireless/marvell/mwifiex/11n_aggr.c
index bc12c37..042a1d0 100644
--- a/drivers/net/wireless/marvell/mwifiex/11n_aggr.c
+++ b/drivers/net/wireless/marvell/mwifiex/11n_aggr.c
@@ -62,7 +62,7 @@ mwifiex_11n_form_amsdu_pkt(struct sk_buff *skb_aggr,
};
struct tx_packet_hdr *tx_header;
- tx_header = (void *)skb_put(skb_aggr, sizeof(*tx_header));
+ tx_header = skb_put(skb_aggr, sizeof(*tx_header));
/* Copy DA and SA */
dt_offset = 2 * ETH_ALEN;
diff --git a/drivers/net/wireless/marvell/mwifiex/tdls.c b/drivers/net/wireless/marvell/mwifiex/tdls.c
index d38555f..39cd677 100644
--- a/drivers/net/wireless/marvell/mwifiex/tdls.c
+++ b/drivers/net/wireless/marvell/mwifiex/tdls.c
@@ -158,7 +158,7 @@ static void mwifiex_tdls_add_aid(struct mwifiex_private *priv,
u8 *pos;
assoc_rsp = (struct ieee_types_assoc_rsp *)&priv->assoc_rsp_buf;
- pos = (void *)skb_put(skb, 4);
+ pos = skb_put(skb, 4);
*pos++ = WLAN_EID_AID;
*pos++ = 2;
memcpy(pos, &assoc_rsp->a_id, sizeof(assoc_rsp->a_id));
@@ -172,7 +172,7 @@ static int mwifiex_tdls_add_vht_capab(struct mwifiex_private *priv,
struct ieee80211_vht_cap vht_cap;
u8 *pos;
- pos = (void *)skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
+ pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
*pos++ = WLAN_EID_VHT_CAPABILITY;
*pos++ = sizeof(struct ieee80211_vht_cap);
@@ -207,7 +207,7 @@ mwifiex_tdls_add_ht_oper(struct mwifiex_private *priv, const u8 *mac,
return 0;
}
- pos = (void *)skb_put(skb, sizeof(struct ieee80211_ht_operation) + 2);
+ pos = skb_put(skb, sizeof(struct ieee80211_ht_operation) + 2);
*pos++ = WLAN_EID_HT_OPERATION;
*pos++ = sizeof(struct ieee80211_ht_operation);
ht_oper = (void *)pos;
@@ -272,7 +272,7 @@ static int mwifiex_tdls_add_vht_oper(struct mwifiex_private *priv,
ap_vht_cap = bss_desc->bcn_vht_cap;
}
- pos = (void *)skb_put(skb, sizeof(struct ieee80211_vht_operation) + 2);
+ pos = skb_put(skb, sizeof(struct ieee80211_vht_operation) + 2);
*pos++ = WLAN_EID_VHT_OPERATION;
*pos++ = sizeof(struct ieee80211_vht_operation);
vht_oper = (struct ieee80211_vht_operation *)pos;
@@ -359,7 +359,7 @@ static void mwifiex_tdls_add_ext_capab(struct mwifiex_private *priv,
{
struct ieee_types_extcap *extcap;
- extcap = (void *)skb_put(skb, sizeof(struct ieee_types_extcap));
+ extcap = skb_put(skb, sizeof(struct ieee_types_extcap));
extcap->ieee_hdr.element_id = WLAN_EID_EXT_CAPABILITY;
extcap->ieee_hdr.len = 8;
memset(extcap->ext_capab, 0, 8);
@@ -372,7 +372,7 @@ static void mwifiex_tdls_add_ext_capab(struct mwifiex_private *priv,
static void mwifiex_tdls_add_qos_capab(struct sk_buff *skb)
{
- u8 *pos = (void *)skb_put(skb, 3);
+ u8 *pos = skb_put(skb, 3);
*pos++ = WLAN_EID_QOS_CAPA;
*pos++ = 1;
@@ -413,8 +413,8 @@ mwifiex_add_wmm_info_ie(struct mwifiex_private *priv, struct sk_buff *skb,
{
u8 *buf;
- buf = (void *)skb_put(skb, MWIFIEX_TDLS_WMM_INFO_SIZE +
- sizeof(struct ieee_types_header));
+ buf = skb_put(skb,
+ MWIFIEX_TDLS_WMM_INFO_SIZE + sizeof(struct ieee_types_header));
*buf++ = WLAN_EID_VENDOR_SPECIFIC;
*buf++ = 7; /* len */
@@ -431,7 +431,7 @@ static void mwifiex_tdls_add_bss_co_2040(struct sk_buff *skb)
{
struct ieee_types_bss_co_2040 *bssco;
- bssco = (void *)skb_put(skb, sizeof(struct ieee_types_bss_co_2040));
+ bssco = skb_put(skb, sizeof(struct ieee_types_bss_co_2040));
bssco->ieee_hdr.element_id = WLAN_EID_BSS_COEX_2040;
bssco->ieee_hdr.len = sizeof(struct ieee_types_bss_co_2040) -
sizeof(struct ieee_types_header);
@@ -443,8 +443,8 @@ static void mwifiex_tdls_add_supported_chan(struct sk_buff *skb)
struct ieee_types_generic *supp_chan;
u8 chan_supp[] = {1, 11};
- supp_chan = (void *)skb_put(skb, (sizeof(struct ieee_types_header) +
- sizeof(chan_supp)));
+ supp_chan = skb_put(skb,
+ (sizeof(struct ieee_types_header) + sizeof(chan_supp)));
supp_chan->ieee_hdr.element_id = WLAN_EID_SUPPORTED_CHANNELS;
supp_chan->ieee_hdr.len = sizeof(chan_supp);
memcpy(supp_chan->data, chan_supp, sizeof(chan_supp));
@@ -455,8 +455,8 @@ static void mwifiex_tdls_add_oper_class(struct sk_buff *skb)
struct ieee_types_generic *reg_class;
u8 rc_list[] = {1,
1, 2, 3, 4, 12, 22, 23, 24, 25, 27, 28, 29, 30, 32, 33};
- reg_class = (void *)skb_put(skb, (sizeof(struct ieee_types_header) +
- sizeof(rc_list)));
+ reg_class = skb_put(skb,
+ (sizeof(struct ieee_types_header) + sizeof(rc_list)));
reg_class->ieee_hdr.element_id = WLAN_EID_SUPPORTED_REGULATORY_CLASSES;
reg_class->ieee_hdr.len = sizeof(rc_list);
memcpy(reg_class->data, rc_list, sizeof(rc_list));
@@ -475,7 +475,7 @@ static int mwifiex_prep_tdls_encap_data(struct mwifiex_private *priv,
capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
- tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
+ tf = skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
memcpy(tf->da, peer, ETH_ALEN);
memcpy(tf->sa, priv->curr_addr, ETH_ALEN);
tf->ether_type = cpu_to_be16(ETH_P_TDLS);
@@ -494,7 +494,7 @@ static int mwifiex_prep_tdls_encap_data(struct mwifiex_private *priv,
return ret;
}
- pos = (void *)skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
+ pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
*pos++ = WLAN_EID_HT_CAPABILITY;
*pos++ = sizeof(struct ieee80211_ht_cap);
ht_cap = (void *)pos;
@@ -534,7 +534,7 @@ static int mwifiex_prep_tdls_encap_data(struct mwifiex_private *priv,
return ret;
}
- pos = (void *)skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
+ pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
*pos++ = WLAN_EID_HT_CAPABILITY;
*pos++ = sizeof(struct ieee80211_ht_cap);
ht_cap = (void *)pos;
@@ -616,7 +616,7 @@ mwifiex_tdls_add_link_ie(struct sk_buff *skb, const u8 *src_addr,
{
struct ieee80211_tdls_lnkie *lnkid;
- lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
+ lnkid = skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
lnkid->ie_type = WLAN_EID_LINK_ID;
lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) -
sizeof(struct ieee_types_header);
@@ -741,7 +741,7 @@ mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv,
capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
- mgmt = (void *)skb_put(skb, offsetof(struct ieee80211_mgmt, u));
+ mgmt = skb_put(skb, offsetof(struct ieee80211_mgmt, u));
memset(mgmt, 0, 24);
memcpy(mgmt->da, peer, ETH_ALEN);
@@ -775,7 +775,7 @@ mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv,
return ret;
}
- pos = (void *)skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
+ pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
*pos++ = WLAN_EID_HT_CAPABILITY;
*pos++ = sizeof(struct ieee80211_ht_cap);
ht_cap = (void *)pos;
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