- 23 Sep, 2008 26 commits
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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:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
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Remi Denis-Courmont authored
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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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Harvey Harrison authored
Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by:
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Bjorn Helgaas authored
Use "[%04x:%04x]" for PCI vendor/device IDs to follow the format used by lspci(8). Signed-off-by:
Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by:
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Andi Kleen authored
- Remove noop VFS stubs. The VFS does that on a NULL pointer anyways. - Fix timer handler prototype to be correct - Comment ugly SMP race I didn't fix. Signed-off-by:
Andi Kleen <ak@linux.intel.com> Signed-off-by:
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Harvey Harrison authored
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Harvey Harrison authored
Found two possible bugs where the z1 value was used directly without byteswapping. Signed-off-by:
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Julia Lawall authored
After calling capi_ctr_get, error handling code should call capi_ctr_put. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r@ expression x,E; statement S; position p1,p2,p3; @@ ( if ((x = capi_ctr_get@p1(...)) == NULL || ...) S | x = capi_ctr_get@p1(...) ... when != x if (x == NULL || ...) S ) <... if@p3 (...) { ... when != capi_ctr_put(x) when != if (x) { ... capi_ctr_put(x); ...} return@p2 ...; } ...> ( return x; | return 0; | x = E | E = x | capi_ctr_put(x) ) @exists@ position r.p1,r.p2,r.p3; expression x; int ret != 0; statement S; @@ * x = capi_ctr_get@p1(...) <... * if@p3 (...) S ...> * return@p2 \(NULL\|ret\); // </smpl> Signed-off-by:
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Kaihui Luo authored
The function localtime_3 in xt_time.c gives a wrong monthday in a leap year after 28th 2. calculating monthday should use the array days_since_leapyear[] not days_since_year[] in a leap year. Signed-off-by:
Kaihui Luo <kaih.luo@gmail.com> Acked-by:
Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by:
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- 22 Sep, 2008 7 commits
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David S. Miller authored
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David S. Miller authored
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David S. Miller authored
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David S. Miller authored
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David S. Miller authored
This will be used by subsequent changesets. Signed-off-by: -
David S. Miller authored
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David S. Miller authored
This minor cleanup simplifies later changes which will convert struct sk_buff and friends over to using struct list_head. Signed-off-by:
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- 21 Sep, 2008 7 commits
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Tom Quetchenbach authored
I'm trying to use the TCP_MAXSEG option to setsockopt() to set the MSS for both sides of a bidirectional connection. man tcp says: "If this option is set before connection establishment, it also changes the MSS value announced to the other end in the initial packet." However, the kernel only uses the MTU/route cache to set the advertised MSS. That means if I set the MSS to, say, 500 before calling connect(), I will send at most 500-byte packets, but I will still receive 1500-byte packets in reply. This is a bug, either in the kernel or the documentation. This patch (applies to latest net-2.6) reduces the advertised value to that requested by the user as long as setsockopt() is called before connect() or accept(). This seems like the behavior that one would expect as well as that which is documented. I've tried to make sure that things that depend on the advertised MSS are set correctly. Signed-off-by:
Tom Quetchenbach <virtualphtn@gmail.com> Signed-off-by:
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Arnaldo Carvalho de Melo authored
Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Alexander Duyck authored
Currently dequeueing a packet and requeueing the same packet will cause a different packet to be pulled on the next dequeue. This change forces requeue to rewind the current_band. Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by:
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Ilpo Järvinen authored
If lost skb is sacked, we might have nothing to retransmit as high as the retransmit_high is pointing to, so place it lower to avoid unnecessary walking. This is mainly for the case where high L'ed skbs gets sacked. Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by:
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Ilpo Järvinen authored
Most importantly avoid doing it with cumulative ACK. However, since we have lost_cnt_hint in the picture as well needing adjustments, it's not as trivial as dealing with retransmit_skb_hint (and cannot be done in the all place we could trivially leave retransmit_skb_hint untouched). With the previous patch, this should mostly remove O(n^2) behavior while cumulative ACKs start flowing once rexmit after a lossy round-trip made it through. Signed-off-by:
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Ilpo Järvinen authored
Most importantly avoid doing it with cumulative ACK. Not clearing means that we no longer need n^2 processing in resolution of each fast recovery. Signed-off-by:
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Ilpo Järvinen authored
This doesn't much sense here afaict, probably never has. Since fragmenting and collapsing deal the hints by themselves, there should be very little reason for the rexmit loop to do that. Signed-off-by:
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