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| author |   Julian Wiedmann <jwi@linux.ibm.com> | 2019-06-27 17:01:32 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-06-27 10:18:24 -0700 |
| commit | 980f4568fa32736b1dec69db2cc7c947b767e52e (patch) | |
| tree | 66ba8c4ef9a3dd507208a3d9ddc9cb846a401f09 /drivers/s390/net/qeth_core.h | |
| parent | s390/qeth: consolidate skb RX processing in L3 driver (diff) | |
| download | linux-dev-980f4568fa32736b1dec69db2cc7c947b767e52e.tar.xz linux-dev-980f4568fa32736b1dec69db2cc7c947b767e52e.zip | |
s390/qeth: extract helper for route validation
As follow-up to commit 0cd6783d3c7d ("s390/qeth: check dst entry before use"),
consolidate the dst_check() logic into a single helper and add a wrapper
around the cast type selection.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/qeth_core.h')
| -rw-r--r-- | drivers/s390/net/qeth_core.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index c81d5ec26803..d354b39cdf4b 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -25,6 +25,8 @@ #include <linux/wait.h> #include <linux/workqueue.h> +#include <net/dst.h> +#include <net/ip6_fib.h> #include <net/ipv6.h> #include <net/if_inet6.h> #include <net/addrconf.h> @@ -877,6 +879,17 @@ static inline int qeth_get_ether_cast_type(struct sk_buff *skb) return RTN_UNICAST; } +static inline struct dst_entry *qeth_dst_check_rcu(struct sk_buff *skb, int ipv) +{ + struct dst_entry *dst = skb_dst(skb); + struct rt6_info *rt; + + rt = (struct rt6_info *) dst; + if (dst) + dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0); + return dst; +} + static inline void qeth_rx_csum(struct qeth_card *card, struct sk_buff *skb, u8 flags) { |