- 24 Sep, 2008 2 commits
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Oliver Hartkopp authored
This patch removes the potentially allocated ifalias when the (new) given alias is empty. E.g. when setting echo "" > /sys/class/net/eth0/ifalias Signed-off-by:
Oliver Hartkopp <oliver@hartkopp.net> Acked-by:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Reported by Thomas Graf. If we don't unlink the SKB from the queue when we send it out in aoenet_xmit(), dev_hard_start_xmit() will see skb->next as non-NULL and interpret this to mean the SKB is part of a GSO segment list. Add __skb_unlink() call to fix that. Signed-off-by:
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- 23 Sep, 2008 38 commits
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Oliver Hartkopp authored
This patch adds a usage documentation for the virtual CAN driver (vcan). Signed-off-by:
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David S. Miller authored
We must check tcp_skb_is_last() before doing a tcp_write_queue_next(). Signed-off-by: -
David S. Miller authored
tcp_write_queue_next() must only be made if we know that tcp_skb_is_last() evaluates to false. Signed-off-by: -
David S. Miller authored
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David S. Miller authored
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Jarek Poplawski authored
The current check wrongly uses the state of one (currently the first) tx queue for all tx queues in case of non-default qdiscs. This check mainly prevented requeuing loop with __netif_schedule(), but now it's controlled inside __qdisc_run(), while dequeuing. The wrongness of this check was first noticed by Herbert Xu. Signed-off-by:
Jarek Poplawski <jarkao2@gmail.com> Signed-off-by:
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David S. Miller authored
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David S. Miller authored
These will be used by TCP write queue handling and elsewhere. Signed-off-by: -
David S. Miller authored
A lot of code wants to iterate over an SKB queue at the top level using it's own control structure and iterator scheme. Provide skb_queue_next(), which is only valid to invoke if skb_queue_is_last() returns false. Signed-off-by: -
David S. Miller authored
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David S. Miller authored
Several bits of code want to know "is this the last SKB in a queue", and all of them implement this by hand. Provide an common interface to make this check. Signed-off-by: -
David S. Miller authored
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David S. Miller authored
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David S. Miller authored
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Jarek Poplawski authored
Check in dequeue_skb() the state of tx_queue for requeued skb to save on locking and re-requeuing, and possibly remove the current check in qdisc_run(). Based on the idea of Alexander Duyck. Signed-off-by:
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David S. Miller authored
There is no reason to call into the complicated qdiscs just to remember the last SKB where we found the device blocked. The SKB is outside of the qdiscs realm at this point. Signed-off-by: -
David S. Miller authored
The idea is that we can use this to get rid of ->requeue(). Signed-off-by: -
David S. Miller authored
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David S. Miller authored
Handle the case of head being non-empty, by adding list->qlen to head->qlen instead of using direct assignment. Signed-off-by: -
Stephen Hemminger authored
This patch add support for keeping an additional character alias associated with an network interface. This is useful for maintaining the SNMP ifAlias value which is a user defined value. Routers use this to hold information like which circuit or line it is connected to. It is just an arbitrary text label on the network device. There are two exposed interfaces with this patch, the value can be read/written either via netlink or sysfs. This could be maintained just by the snmp daemon, but it is more generally useful for other management tools, and the kernel is good place to act as an agreed upon interface to store it. Signed-off-by:
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David S. Miller authored
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Remi Denis-Courmont authored
Signed-off-by:
Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by:
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Remi Denis-Courmont authored
When there is no listener socket for a received packet, send an error back to the sender. Signed-off-by:
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Remi Denis-Courmont authored
Phonet endpoints are bound to individual ports. This provides a /proc/sys/net/phonet (or sysctl) interface for selecting the range of automatically allocated ports (much like the ip_local_port_range with IPv4). Signed-off-by:
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Remi Denis-Courmont authored
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Remi Denis-Courmont authored
This provides the basic SOCK_DGRAM transport protocol for Phonet. Signed-off-by:
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Remi Denis-Courmont authored
This provides the socket API for the Phonet protocols family. Signed-off-by:
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Remi Denis-Courmont authored
This provides support for configuring Phonet addresses, notifying Phonet configuration changes, and dumping the configuration. Signed-off-by:
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Remi Denis-Courmont authored
This provides support for adding Phonet addresses to and removing Phonet addresses from network devices. Signed-off-by:
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Remi Denis-Courmont authored
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Remi Denis-Courmont authored
This is the basis for the Phonet protocol families, and introduces the ETH_P_PHONET packet type and the PF_PHONET socket family. Signed-off-by:
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Remi Denis-Courmont authored
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Herbert Xu authored
As discovered by Timo Teräs, the currently xfrm_state_walk scheme is racy because if a second dump finishes before the first, we may free xfrm states that the first dump would walk over later. This patch fixes this by storing the dumps in a list in order to calculate the correct completion counter which cures this problem. I've expanded netlink_cb in order to accomodate the extra state related to this. It shouldn't be a big deal since netlink_cb is kmalloced for each dump and we're just increasing it by 4 or 8 bytes. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Jaswinder Singh authored
Firmware blob looks like this... __le16 load_address unsigned char data[] [akpm@linux-foundation.org: include vmalloc.h] Signed-off-by:Jaswinder Singh <jaswinder@infradead.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Julia Lawall authored
The break after the return serves no purpose. Signed-off-by:
Julia Lawall <julia@diku.dk> Reviewed-by:
Richard Genoud <richard.genoud@gmail.com> Signed-off-by:
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Julia Lawall authored
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. An extract of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ #include <linux/kernel.h> @depends on haskernel@ expression n,d; @@ ( - (n + d - 1) / d + DIV_ROUND_UP(n,d) | - (n + (d - 1)) / d + DIV_ROUND_UP(n,d) ) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP((n),d) + DIV_ROUND_UP(n,d) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP(n,(d)) + DIV_ROUND_UP(n,d) // </smpl> Signed-off-by:
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Julia Lawall authored
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. In the case of the file drivers/atm/eni.c, I am a little bit suspicious of the -1 at the end of the affected expression. Please check that that is what is wanted. An extract of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ #include <linux/kernel.h> @depends on haskernel@ expression n,d; @@ ( - (n + d - 1) / d + DIV_ROUND_UP(n,d) | - (n + (d - 1)) / d + DIV_ROUND_UP(n,d) ) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP((n),d) + DIV_ROUND_UP(n,d) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP(n,(d)) + DIV_ROUND_UP(n,d) // </smpl> Signed-off-by:
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Ming Lei authored
smp_mb is enough for ordering memory operations among processors,and mb is more expensive than smp_mb for UP machine, so replace it with smp_mb(). Signed-off-by:
Ming Lei <tom.leiming@gmail.com> Acked-by:
Marcel Holtmann <marcel@holtmann.org> Signed-off-by:
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