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authorJohannes Berg <johannes.berg@intel.com>2017-06-16 15:29:20 +0300
committerDavid S. Miller <davem@davemloft.net>2017-06-16 18:48:37 +0300
commit59ae1d127ac0ae404baf414c434ba2651b793f46 (patch)
tree043e71496aa7a7db86bcc8219a3a51f533aac982 /drivers/net/wireless/ath/ath9k
parentb080db585384b9f037e015c0c28d1ad33be41dfc (diff)
downloadlinux-59ae1d127ac0ae404baf414c434ba2651b793f46.tar.xz
networking: introduce and use skb_put_data()
A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k')
-rw-r--r--drivers/net/wireless/ath/ath9k/channel.c5
-rw-r--r--drivers/net/wireless/ath/ath9k/wmi.c3
2 files changed, 3 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c
index 373b1e9457fd..f0439f2d566b 100644
--- a/drivers/net/wireless/ath/ath9k/channel.c
+++ b/drivers/net/wireless/ath/ath9k/channel.c
@@ -1005,7 +1005,7 @@ static void ath_scan_send_probe(struct ath_softc *sc,
info->flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
if (req->ie_len)
- memcpy(skb_put(skb, req->ie_len), req->ie, req->ie_len);
+ skb_put_data(skb, req->ie, req->ie_len);
skb_set_queue_mapping(skb, IEEE80211_AC_VO);
@@ -1521,8 +1521,7 @@ void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
noa_desc = !!avp->offchannel_duration + !!avp->noa_duration;
noa_len = 2 + sizeof(struct ieee80211_p2p_noa_desc) * noa_desc;
- hdr = skb_put(skb, sizeof(noa_ie_hdr));
- memcpy(hdr, noa_ie_hdr, sizeof(noa_ie_hdr));
+ hdr = skb_put_data(skb, noa_ie_hdr, sizeof(noa_ie_hdr));
hdr[1] = sizeof(noa_ie_hdr) + noa_len - 2;
hdr[7] = noa_len;
diff --git a/drivers/net/wireless/ath/ath9k/wmi.c b/drivers/net/wireless/ath/ath9k/wmi.c
index 9c16e2a6d185..c51c69b1ad96 100644
--- a/drivers/net/wireless/ath/ath9k/wmi.c
+++ b/drivers/net/wireless/ath/ath9k/wmi.c
@@ -312,8 +312,7 @@ int ath9k_wmi_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id,
skb_reserve(skb, headroom);
if (cmd_len != 0 && cmd_buf != NULL) {
- data = (u8 *) skb_put(skb, cmd_len);
- memcpy(data, cmd_buf, cmd_len);
+ data = skb_put_data(skb, cmd_buf, cmd_len);
}
mutex_lock(&wmi->op_mutex);