diff options
author | yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn> | 2017-06-18 17:48:17 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-06-20 20:30:14 +0300 |
commit | de77b966ce8adcb4c58d50e2f087320d5479812a (patch) | |
tree | b18e9a0dc3694a7d7165ec8631801d6ba47de15f /net/802 | |
parent | ddcbabf4404606fcc3edf6e48caa9707b33d3df4 (diff) | |
download | linux-de77b966ce8adcb4c58d50e2f087320d5479812a.tar.xz |
net: introduce __skb_put_[zero, data, u8]
follow Johannes Berg, semantic patch file as below,
@@
identifier p, p2;
expression len;
expression skb;
type t, t2;
@@
(
-p = __skb_put(skb, len);
+p = __skb_put_zero(skb, len);
|
-p = (t)__skb_put(skb, len);
+p = __skb_put_zero(skb, len);
)
... when != p
(
p2 = (t2)p;
-memset(p2, 0, len);
|
-memset(p, 0, len);
)
@@
identifier p;
expression len;
expression skb;
type t;
@@
(
-t p = __skb_put(skb, len);
+t p = __skb_put_zero(skb, len);
)
... when != p
(
-memset(p, 0, len);
)
@@
type t, t2;
identifier p, p2;
expression skb;
@@
t *p;
...
(
-p = __skb_put(skb, sizeof(t));
+p = __skb_put_zero(skb, sizeof(t));
|
-p = (t *)__skb_put(skb, sizeof(t));
+p = __skb_put_zero(skb, sizeof(t));
)
... when != p
(
p2 = (t2)p;
-memset(p2, 0, sizeof(*p));
|
-memset(p, 0, sizeof(*p));
)
@@
expression skb, len;
@@
-memset(__skb_put(skb, len), 0, len);
+__skb_put_zero(skb, len);
@@
expression skb, len, data;
@@
-memcpy(__skb_put(skb, len), data, len);
+__skb_put_data(skb, data, len);
@@
expression SKB, C, S;
typedef u8;
identifier fn = {__skb_put};
fresh identifier fn2 = fn ## "_u8";
@@
- *(u8 *)fn(SKB, S) = C;
+ fn2(SKB, C);
Signed-off-by: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/802')
-rw-r--r-- | net/802/garp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/802/garp.c b/net/802/garp.c index a9a266569293..2dac647ff420 100644 --- a/net/802/garp.c +++ b/net/802/garp.c @@ -232,7 +232,7 @@ static int garp_pdu_append_end_mark(struct garp_applicant *app) { if (skb_tailroom(app->pdu) < sizeof(u8)) return -1; - *(u8 *)__skb_put(app->pdu, sizeof(u8)) = GARP_END_MARK; + __skb_put_u8(app->pdu, GARP_END_MARK); return 0; } |