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authorLinus Torvalds <torvalds@linux-foundation.org>2012-08-13 10:18:19 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-08-13 10:18:19 +0400
commit1c212c65b2468e9a302f06849e244d461cc89d86 (patch)
tree983a67cdba5de0f048b90b9c2c3581dc643113f6 /include
parentf82202bae3f7f076402b16ca7bced9928aad16d0 (diff)
parentf57b07c0c7ca9e4dde36acfabdf474ee3c478e6d (diff)
downloadlinux-1c212c65b2468e9a302f06849e244d461cc89d86.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking changes from David Miller: "Most importantly this should cure the ipv4-mapped ipv6 socket TCP crashes some people were seeing, otherwise: 1) Fix e1000e autonegotiation handling regression, from Tushar Dave. 2) Fix TX data corruption race on e1000e down, also from Tushar Dave. 3) Fix bfin_sir IRDA driver build, from Sonic Zhang. 4) AF_PACKET mmap() tests a flag in the TX ring shared between userspace and the kernel for an internal consistency check. It really shouldn't do this to validate the kernel's own behavior because the user can corrupt it to be any value at all. From Daniel Borkmann. 5) Fix TCP metrics leak on netns dismantle, from Eric Dumazet. 6) Orphan the anonymous TCP socket from the SKB in ip_send_unicast_reply() so that the rest of the stack needn't see it. Otherwise we get selinux problems of all sorts, from Eric Dumazet. This is the best way to fix this since the socket is just a place holder for sending packets in a context where we have no real socket at all. 7) Fix TUN detach crashes, from Stanislav Kinsbursky. 8) dev_set_alias() leaks memory on krealloc() failure, from Alexey Khoroshilov. 9) FIB trie must use call_rcu() not call_rcu_bh(), because this code is not universally invoked from software interrupts. From Eric Dumazet. 10) PPTP looks up ipv4 routes with the wrong network namespace, fix from Gao Feng." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits) bnx2x: Fix compiler warnings af_packet: remove BUG statement in tpacket_destruct_skb macvtap: rcu_dereference outside read-lock section codel: refine one condition to avoid a nul rec_inv_sqrt ixgbe: add missing braces ipv4: fix ip_send_skb() net: tcp: ipv6_mapped needs sk_rx_dst_set method ipv4: tcp: unicast_sock should not land outside of TCP stack bnx2x: Fix recovery flow cleanup during probe bnx2x: fix unload previous driver flow when flr-capable tun: don't zeroize sock->file on detach igb: Fix register defines for all non-82575 hardware e1000e: fix panic while dumping packets on Tx hang with IOMMU igb: fix panic while dumping packets on Tx hang with IOMMU tcp: must free metrics at net dismantle net/stmmac: mark probe function as __devinit lpc_eth: remove obsolete ifdefs net/core: Fix potential memory leak in dev_set_alias() cdc-phonet: Don't leak in usbpn_open batman-adv: Fix mem leak in the batadv_tt_local_event() function ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/can.h25
-rw-r--r--include/net/codel.h8
-rw-r--r--include/net/dst.h2
-rw-r--r--include/net/ip.h2
-rw-r--r--include/net/tcp.h1
5 files changed, 22 insertions, 16 deletions
diff --git a/include/linux/can.h b/include/linux/can.h
index 018055efc034..e52958d7c2d1 100644
--- a/include/linux/can.h
+++ b/include/linux/can.h
@@ -74,20 +74,21 @@ struct can_frame {
/*
* defined bits for canfd_frame.flags
*
- * As the default for CAN FD should be to support the high data rate in the
- * payload section of the frame (HDR) and to support up to 64 byte in the
- * data section (EDL) the bits are only set in the non-default case.
- * Btw. as long as there's no real implementation for CAN FD network driver
- * these bits are only preliminary.
+ * The use of struct canfd_frame implies the Extended Data Length (EDL) bit to
+ * be set in the CAN frame bitstream on the wire. The EDL bit switch turns
+ * the CAN controllers bitstream processor into the CAN FD mode which creates
+ * two new options within the CAN FD frame specification:
*
- * RX: NOHDR/NOEDL - info about received CAN FD frame
- * ESI - bit from originating CAN controller
- * TX: NOHDR/NOEDL - control per-frame settings if supported by CAN controller
- * ESI - bit is set by local CAN controller
+ * Bit Rate Switch - to indicate a second bitrate is/was used for the payload
+ * Error State Indicator - represents the error state of the transmitting node
+ *
+ * As the CANFD_ESI bit is internally generated by the transmitting CAN
+ * controller only the CANFD_BRS bit is relevant for real CAN controllers when
+ * building a CAN FD frame for transmission. Setting the CANFD_ESI bit can make
+ * sense for virtual CAN interfaces to test applications with echoed frames.
*/
-#define CANFD_NOHDR 0x01 /* frame without high data rate */
-#define CANFD_NOEDL 0x02 /* frame without extended data length */
-#define CANFD_ESI 0x04 /* error state indicator */
+#define CANFD_BRS 0x01 /* bit rate switch (second bitrate for payload data) */
+#define CANFD_ESI 0x02 /* error state indicator of the transmitting node */
/**
* struct canfd_frame - CAN flexible data rate frame structure
diff --git a/include/net/codel.h b/include/net/codel.h
index 550debfc2403..389cf621161d 100644
--- a/include/net/codel.h
+++ b/include/net/codel.h
@@ -305,6 +305,8 @@ static struct sk_buff *codel_dequeue(struct Qdisc *sch,
}
}
} else if (drop) {
+ u32 delta;
+
if (params->ecn && INET_ECN_set_ce(skb)) {
stats->ecn_mark++;
} else {
@@ -320,9 +322,11 @@ static struct sk_buff *codel_dequeue(struct Qdisc *sch,
* assume that the drop rate that controlled the queue on the
* last cycle is a good starting point to control it now.
*/
- if (codel_time_before(now - vars->drop_next,
+ delta = vars->count - vars->lastcount;
+ if (delta > 1 &&
+ codel_time_before(now - vars->drop_next,
16 * params->interval)) {
- vars->count = (vars->count - vars->lastcount) | 1;
+ vars->count = delta;
/* we dont care if rec_inv_sqrt approximation
* is not very precise :
* Next Newton steps will correct it quadratically.
diff --git a/include/net/dst.h b/include/net/dst.h
index baf597890064..621e3513ef5e 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -110,7 +110,7 @@ struct dst_entry {
};
extern u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old);
-extern const u32 dst_default_metrics[RTAX_MAX];
+extern const u32 dst_default_metrics[];
#define DST_METRICS_READ_ONLY 0x1UL
#define __DST_METRICS_PTR(Y) \
diff --git a/include/net/ip.h b/include/net/ip.h
index bd5e444a19ce..5a5d84d3d2c6 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -120,7 +120,7 @@ extern struct sk_buff *__ip_make_skb(struct sock *sk,
struct flowi4 *fl4,
struct sk_buff_head *queue,
struct inet_cork *cork);
-extern int ip_send_skb(struct sk_buff *skb);
+extern int ip_send_skb(struct net *net, struct sk_buff *skb);
extern int ip_push_pending_frames(struct sock *sk, struct flowi4 *fl4);
extern void ip_flush_pending_frames(struct sock *sk);
extern struct sk_buff *ip_make_skb(struct sock *sk,
diff --git a/include/net/tcp.h b/include/net/tcp.h
index e19124b84cd2..1f000ffe7075 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -464,6 +464,7 @@ extern int tcp_disconnect(struct sock *sk, int flags);
void tcp_connect_init(struct sock *sk);
void tcp_finish_connect(struct sock *sk, struct sk_buff *skb);
int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size);
+void inet_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb);
/* From syncookies.c */
extern __u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS];