[RFCv2 bluetooth-next 02/19] ieee802154: 6lowpan: move skb cb BUILD_BUG_ON check
flat view
STALE3621d
From: Alexander Aring <hidden>
Date: 2016-08-07 14:30:39
Subsystem:
6lowpan generic (btle/ieee 802.15.4), ieee 802.15.4 subsystem, networking [general], the rest · Maintainers:
Alexander Aring, Stefan Schmidt, Miquel Raynal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 2 in this series.
Revisions (2)
- rfc [diff vs current]
- v1 current
This patch moves the control block information BUILD_BUG_ON to the init of module. All compile timed BUILD_BUG_ON macros should be placed there. Signed-off-by: Alexander Aring <redacted> --- include/net/6lowpan.h | 1 - net/ieee802154/6lowpan/core.c | 3 +++ 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/net/6lowpan.h b/include/net/6lowpan.h
index 5ab4c99..6d56be7 100644
--- a/include/net/6lowpan.h
+++ b/include/net/6lowpan.h@@ -178,7 +178,6 @@ struct lowpan_802154_cb { static inline struct lowpan_802154_cb *lowpan_802154_cb(const struct sk_buff *skb) { - BUILD_BUG_ON(sizeof(struct lowpan_802154_cb) > sizeof(skb->cb)); return (struct lowpan_802154_cb *)skb->cb; }
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
index d7efbf0..6afb8cd 100644
--- a/net/ieee802154/6lowpan/core.c
+++ b/net/ieee802154/6lowpan/core.c@@ -233,6 +233,9 @@ static int __init lowpan_init_module(void) { int err = 0; + BUILD_BUG_ON(sizeof(struct lowpan_802154_cb) > + FIELD_SIZEOF(struct sk_buff, cb)); + err = lowpan_net_frag_init(); if (err < 0) goto out;
--
2.9.2