9 years agoMerge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-merge
David S. Miller [Mon, 7 Mar 2011 08:37:13 +0000]
Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-merge

9 years agobatman-adv: Disallow regular interface as mesh device
Sven Eckelmann [Fri, 4 Mar 2011 21:36:41 +0000]
batman-adv: Disallow regular interface as mesh device

When trying to associate a net_device with another net_device which
already exists, batman-adv assumes that this interface is a fully
initialized batman mesh interface without checking it. The behaviour
when accessing data behind netdev_priv of a random net_device is
undefined and potentially dangerous.

Reported-by: Linus Lüssing <linus.luessing@ascom.ch>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Remove unused hdr_size variable in route_unicast_packet()
Linus Lüssing [Wed, 2 Mar 2011 17:39:31 +0000]
batman-adv: Remove unused hdr_size variable in route_unicast_packet()

Signed-off-by: Linus Lüssing <linus.luessing@ascom.ch>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: rename batman_if struct to hard_iface
Marek Lindner [Fri, 18 Feb 2011 12:33:20 +0000]
batman-adv: rename batman_if struct to hard_iface

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: rename global if_list to hardif_list
Marek Lindner [Fri, 18 Feb 2011 12:33:19 +0000]
batman-adv: rename global if_list to hardif_list

Batman-adv works with "hard interfaces" as well as "soft interfaces".
The new name should better make clear which kind of interfaces this
list stores.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: remove orig_hash spinlock
Marek Lindner [Wed, 19 Jan 2011 20:01:44 +0000]
batman-adv: remove orig_hash spinlock

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: increase refcount in create_neighbor to be consistent
Marek Lindner [Fri, 18 Feb 2011 12:28:11 +0000]
batman-adv: increase refcount in create_neighbor to be consistent

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Correct rcu refcounting for orig_node
Marek Lindner [Fri, 18 Feb 2011 12:28:10 +0000]
batman-adv: Correct rcu refcounting for orig_node

It might be possible that 2 threads access the same data in the same
rcu grace period. The first thread calls call_rcu() to decrement the
refcount and free the data while the second thread increases the
refcount to use the data. To avoid this race condition all refcount
operations have to be atomic.

Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: remove extra layer between hash and hash element - hash bucket
Marek Lindner [Fri, 18 Feb 2011 12:28:09 +0000]
batman-adv: remove extra layer between hash and hash element - hash bucket

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: separate ethernet comparing calls from hash functions
Marek Lindner [Fri, 18 Feb 2011 12:28:08 +0000]
batman-adv: separate ethernet comparing calls from hash functions

Note: The function compare_ether_addr() provided by the Linux kernel
requires aligned memory.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Fix possible buffer overflow in softif neigh list output
Linus Lüssing [Fri, 18 Feb 2011 12:20:13 +0000]
batman-adv: Fix possible buffer overflow in softif neigh list output

When printing the soft interface table the number of entries in the
softif neigh list are first being counted and a fitting buffer
allocated. After that the softif neigh list gets locked again and
the buffer printed - which has the following two issues:

For one thing, the softif neigh list might have grown when reacquiring
the rcu lock, which results in writing outside of the allocated buffer.
Furthermore 31 Bytes are not enough for printing an entry with a vid
of more than 2 digits.

The manual buffering is unnecessary, we can safely print to the seq
directly during the rcu_read_lock().

Signed-off-by: Linus Lüssing <linus.luessing@ascom.ch>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Increase orig_node refcount before releasing rcu read lock
Linus Lüssing [Sun, 13 Feb 2011 21:13:04 +0000]
batman-adv: Increase orig_node refcount before releasing rcu read lock

When unicast_send_skb() is increasing the orig_node's refcount another
thread might have been freeing this orig_node already. We need to
increase the refcount in the rcu read lock protected area to avoid that.

Signed-off-by: Linus Lüssing <linus.luessing@ascom.ch>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Make bat_priv->curr_gw an rcu protected pointer
Linus Lüssing [Sun, 13 Feb 2011 21:13:02 +0000]
batman-adv: Make bat_priv->curr_gw an rcu protected pointer

The rcu protected macros rcu_dereference() and rcu_assign_pointer()
for the bat_priv->curr_gw need to be used, as well as spin/rcu locking.

Otherwise we might end up using a curr_gw pointer pointing to already
freed memory.

Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Linus Lüssing <linus.luessing@ascom.ch>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: make broadcast seqno operations atomic
Marek Lindner [Tue, 25 Jan 2011 21:52:11 +0000]
batman-adv: make broadcast seqno operations atomic

Batman-adv could receive several payload broadcasts at the same time
that would trigger access to the broadcast seqno sliding window to
determine whether this is a new broadcast or not. If these incoming
broadcasts are accessing the sliding window simultaneously it could
be left in an inconsistent state. Therefore it is necessary to make
sure this access is atomic.

Reported-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: protect bit operations to count OGMs with spinlock
Marek Lindner [Tue, 25 Jan 2011 21:52:10 +0000]
batman-adv: protect bit operations to count OGMs with spinlock

Reported-by: Linus Lüssing <linus.luessing@saxnet.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Correct rcu refcounting for batman_if
Marek Lindner [Thu, 10 Feb 2011 14:33:51 +0000]
batman-adv: Correct rcu refcounting for batman_if

It might be possible that 2 threads access the same data in the same
rcu grace period. The first thread calls call_rcu() to decrement the
refcount and free the data while the second thread increases the
refcount to use the data. To avoid this race condition all refcount
operations have to be atomic.

Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Correct rcu refcounting for softif_neigh
Marek Lindner [Thu, 10 Feb 2011 14:33:50 +0000]
batman-adv: Correct rcu refcounting for softif_neigh

It might be possible that 2 threads access the same data in the same
rcu grace period. The first thread calls call_rcu() to decrement the
refcount and free the data while the second thread increases the
refcount to use the data. To avoid this race condition all refcount
operations have to be atomic.

Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Correct rcu refcounting for gw_node
Marek Lindner [Thu, 10 Feb 2011 14:33:49 +0000]
batman-adv: Correct rcu refcounting for gw_node

It might be possible that 2 threads access the same data in the same
rcu grace period. The first thread calls call_rcu() to decrement the
refcount and free the data while the second thread increases the
refcount to use the data. To avoid this race condition all refcount
operations have to be atomic.

Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: Correct rcu refcounting for neigh_node
Marek Lindner [Thu, 10 Feb 2011 14:33:53 +0000]
batman-adv: Correct rcu refcounting for neigh_node

It might be possible that 2 threads access the same data in the same
rcu grace period. The first thread calls call_rcu() to decrement the
refcount and free the data while the second thread increases the
refcount to use the data. To avoid this race condition all refcount
operations have to be atomic.

Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: protect bonding with rcu locks
Simon Wunderlich [Wed, 19 Jan 2011 20:01:43 +0000]
batman-adv: protect bonding with rcu locks

bonding / alternating candidates need to be secured by rcu locks
as well. This patch therefore converts the bonding list
from a plain pointer list to a rcu securable lists and references
the bonding candidates.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: protect ogm counter arrays with spinlock
Marek Lindner [Wed, 19 Jan 2011 20:01:42 +0000]
batman-adv: protect ogm counter arrays with spinlock

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: protect originator nodes with reference counters
Marek Lindner [Wed, 19 Jan 2011 20:01:42 +0000]
batman-adv: protect originator nodes with reference counters

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: protect each hash row with rcu locks
Marek Lindner [Wed, 19 Jan 2011 20:01:40 +0000]
batman-adv: protect each hash row with rcu locks

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: protect neigh_nodes used outside of rcu_locks with refcounting
Marek Lindner [Wed, 19 Jan 2011 20:01:39 +0000]
batman-adv: protect neigh_nodes used outside of rcu_locks with refcounting

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: free neighbors when an interface is deactivated
Marek Lindner [Wed, 19 Jan 2011 19:16:10 +0000]
batman-adv: free neighbors when an interface is deactivated

hardif_disable_interface() calls purge_orig_ref() to immediately free
all neighbors associated with the interface that is going down.
purge_orig_neighbors() checked if the interface status is IF_INACTIVE
which is set to IF_NOT_IN_USE shortly before calling purge_orig_ref().

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: protect neighbor list with rcu locks
Marek Lindner [Sun, 12 Dec 2010 21:57:12 +0000]
batman-adv: protect neighbor list with rcu locks

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: convert neighbor list to hlist
Marek Lindner [Sun, 12 Dec 2010 21:57:11 +0000]
batman-adv: convert neighbor list to hlist

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agobatman-adv: protect neighbor nodes with reference counters
Marek Lindner [Sun, 12 Dec 2010 21:57:10 +0000]
batman-adv: protect neighbor nodes with reference counters

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

9 years agoipv4: Remove flowi from struct rtable.
David S. Miller [Sat, 5 Mar 2011 05:47:09 +0000]
ipv4: Remove flowi from struct rtable.

The only necessary parts are the src/dst addresses, the
interface indexes, the TOS, and the mark.

The rest is unnecessary bloat, which amounts to nearly
50 bytes on 64-bit.

Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoipv4: Set rt->rt_iif more sanely on output routes.
David S. Miller [Sat, 5 Mar 2011 05:35:25 +0000]
ipv4: Set rt->rt_iif more sanely on output routes.

rt->rt_iif is only ever inspected on input routes, for example DCCP
uses this to populate a route lookup flow key when generating replies
to another packet.

Therefore, setting it to anything other than zero on output routes
makes no sense.

Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoipv4: Use passed-in protocol in ip_route_newports().
David S. Miller [Sat, 5 Mar 2011 05:31:48 +0000]
ipv4: Use passed-in protocol in ip_route_newports().

Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoipv4: Get peer more cheaply in rt_init_metrics().
David S. Miller [Sat, 5 Mar 2011 05:26:07 +0000]
ipv4: Get peer more cheaply in rt_init_metrics().

We know this is a new route object, so doing atomics and
stuff makes no sense at all.

Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoipv4: Optimize flow initialization in output route lookup.
David S. Miller [Sat, 5 Mar 2011 05:24:47 +0000]
ipv4: Optimize flow initialization in output route lookup.

We burn a lot of useless cycles, cpu store buffer traffic, and
memory operations memset()'ing the on-stack flow used to perform
output route lookups in __ip_route_output_key().

Only the first half of the flow object members even matter for
output route lookups in this context, specifically:

FIB rules matching cares about:

dst, src, tos, iif, oif, mark

FIB trie lookup cares about:

dst

FIB semantic match cares about:

tos, scope, oif

Therefore only initialize these specific members and elide the
memset entirely.

On Niagara2 this kills about ~300 cycles from the output route
lookup path.

Likely, we can take things further, since all callers of output
route lookups essentially throw away the on-stack flow they use.
So they don't care if we use it as a scratch-pad to compute the
final flow key.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>

9 years agoinetpeer: seqlock optimization
Eric Dumazet [Fri, 4 Mar 2011 22:33:59 +0000]
inetpeer: seqlock optimization

David noticed :

------------------
Eric, I was profiling the non-routing-cache case and something that
stuck out is the case of calling inet_getpeer() with create==0.

If an entry is not found, we have to redo the lookup under a spinlock
to make certain that a concurrent writer rebalancing the tree does
not "hide" an existing entry from us.

This makes the case of a create==0 lookup for a not-present entry
really expensive.  It is on the order of 600 cpu cycles on my
Niagara2.

I added a hack to not do the relookup under the lock when create==0
and it now costs less than 300 cycles.

This is now a pretty common operation with the way we handle COW'd
metrics, so I think it's definitely worth optimizing.
-----------------

One solution is to use a seqlock instead of a spinlock to protect struct
inet_peer_base.

After a failed avl tree lookup, we can easily detect if a writer did
some changes during our lookup. Taking the lock and redo the lookup is
only necessary in this case.

Note: Add one private rcu_deref_locked() macro to place in one spot the
access to spinlock included in seqlock.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoMerge branch 'for-davem' of ssh://master.kernel.org/pub/scm/linux/kernel/git/linville...
David S. Miller [Fri, 4 Mar 2011 20:48:25 +0000]
Merge branch 'for-davem' of ssh:///linux/kernel/git/linville/wireless-next-2.6

9 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Fri, 4 Mar 2011 19:10:40 +0000]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-next-2.6 into for-davem

9 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
David S. Miller [Fri, 4 Mar 2011 05:27:42 +0000]
Merge branch 'master' of /linux/kernel/git/davem/net-2.6

Conflicts:
drivers/net/bnx2x/bnx2x.h

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Thu, 3 Mar 2011 23:48:01 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  DNS: Fix a NULL pointer deref when trying to read an error key [CVE-2011-1076]

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 3 Mar 2011 23:43:15 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
  MAINTAINERS: Add Andy Gospodarek as co-maintainer.
  r8169: disable ASPM
  RxRPC: Fix v1 keys
  AF_RXRPC: Handle receiving ACKALL packets
  cnic: Fix lost interrupt on bnx2x
  cnic: Prevent status block race conditions with hardware
  net: dcbnl: check correct ops in dcbnl_ieee_set()
  e1000e: disable broken PHY wakeup for ICH10 LOMs, use MAC wakeup instead
  igb: fix sparse warning
  e1000: fix sparse warning
  netfilter: nf_log: avoid oops in (un)bind with invalid nfproto values
  dccp: fix oops on Reset after close
  ipvs: fix dst_lock locking on dest update
  davinci_emac: Add Carrier Link OK check in Davinci RX Handler
  bnx2x: update driver version to 1.62.00-6
  bnx2x: properly calculate lro_mss
  bnx2x: perform statistics "action" before state transition.
  bnx2x: properly configure coefficients for MinBW algorithm (NPAR mode).
  bnx2x: Fix ethtool -t link test for MF (non-pmf) devices.
  bnx2x: Fix nvram test for single port devices.
  ...

9 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Thu, 3 Mar 2011 23:42:35 +0000]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: kill loop_mutex
  blktrace: Remove blk_fill_rwbs_rq.
  block: blk-flush shouldn't call directly into q->request_fn() __blk_run_queue()
  block: add @force_kblockd to __blk_run_queue()
  block: fix kernel-doc format for blkdev_issue_zeroout
  blk-throttle: Do not use kblockd workqueue for throtl work

9 years agoMerge branch 'i_nlink' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Thu, 3 Mar 2011 23:37:59 +0000]
Merge branch 'i_nlink' of git://git./linux/kernel/git/viro/vfs-2.6

* 'i_nlink' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  hfs: fix rename() over non-empty directory
  udf: fix i_nlink limit
  fix reiserfs mkdir() breakage
  exofs: i_nlink races in rename()
  nilfs2: i_nlink races in rename()
  minix: i_nlink races in rename()
  ufs: i_nlink races in rename()
  sysv: i_nlink races in rename()

9 years agoDNS: Fix a NULL pointer deref when trying to read an error key [CVE-2011-1076]
David Howells [Thu, 3 Mar 2011 11:28:58 +0000]
DNS: Fix a NULL pointer deref when trying to read an error key [CVE-2011-1076]

When a DNS resolver key is instantiated with an error indication, attempts to
read that key will result in an oops because user_read() is expecting there to
be a payload - and there isn't one [CVE-2011-1076].

Give the DNS resolver key its own read handler that returns the error cached in
key->type_data.x[0] as an error rather than crashing.

Also make the kenter() at the beginning of dns_resolver_instantiate() limit the
amount of data it prints, since the data is not necessarily NUL-terminated.

The buggy code was added in:

commit 4a2d789267e00b5a1175ecd2ddefcc78b83fbf09
Author: Wang Lei <wang840925@gmail.com>
Date:   Wed Aug 11 09:37:58 2010 +0100
Subject: DNS: If the DNS server returns an error, allow that to be cached [ver #2]

This can trivially be reproduced by any user with the following program
compiled with -lkeyutils:

#include <stdlib.h>
#include <keyutils.h>
#include <err.h>
static char payload[] = "#dnserror=6";
int main()
{
key_serial_t key;
key = add_key("dns_resolver", "a", payload, sizeof(payload),
      KEY_SPEC_SESSION_KEYRING);
if (key == -1)
err(1, "add_key");
if (keyctl_read(key, NULL, 0) == -1)
err(1, "read_key");
return 0;
}

What should happen is that keyctl_read() reports error 6 (ENXIO) to the user:

dns-break: read_key: No such device or address

but instead the kernel oopses.

This cannot be reproduced with the 'keyutils add' or 'keyutils padd' commands
as both of those cut the data down below the NUL termination that must be
included in the data.  Without this dns_resolver_instantiate() will return
-EINVAL and the key will not be instantiated such that it can be read.

The oops looks like:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
IP: [<ffffffff811b99f7>] user_read+0x4f/0x8f
PGD 3bdf8067 PUD 385b9067 PMD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:19.0/irq
CPU 0
Modules linked in:

Pid: 2150, comm: dns-break Not tainted 2.6.38-rc7-cachefs+ #468                  /DG965RY
RIP: 0010:[<ffffffff811b99f7>]  [<ffffffff811b99f7>] user_read+0x4f/0x8f
RSP: 0018:ffff88003bf47f08  EFLAGS: 00010246
RAX: 0000000000000001 RBX: ffff88003b5ea378 RCX: ffffffff81972368
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88003b5ea378
RBP: ffff88003bf47f28 R08: ffff88003be56620 R09: 0000000000000000
R10: 0000000000000395 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffffffffa1
FS:  00007feab5751700(0000) GS:ffff88003e000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 000000003de40000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process dns-break (pid: 2150, threadinfo ffff88003bf46000, task ffff88003be56090)
Stack:
 ffff88003b5ea378 ffff88003b5ea3a0 0000000000000000 0000000000000000
 ffff88003bf47f68 ffffffff811b708e ffff88003c442bc8 0000000000000000
 00000000004005a0 00007fffba368060 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff811b708e>] keyctl_read_key+0xac/0xcf
 [<ffffffff811b7c07>] sys_keyctl+0x75/0xb6
 [<ffffffff81001f7b>] system_call_fastpath+0x16/0x1b
Code: 75 1f 48 83 7b 28 00 75 18 c6 05 58 2b fb 00 01 be bb 00 00 00 48 c7 c7 76 1c 75 81 e8 13 c2 e9 ff 4c 8b b3 e0 00 00 00 4d 85 ed <41> 0f b7 5e 10 74 2d 4d 85 e4 74 28 e8 98 79 ee ff 49 39 dd 48
RIP  [<ffffffff811b99f7>] user_read+0x4f/0x8f
 RSP <ffff88003bf47f08>
CR2: 0000000000000010

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
cc: Wang Lei <wang840925@gmail.com>
Signed-off-by: James Morris <jmorris@namei.org>

9 years agonetlink: kill eff_cap from struct netlink_skb_parms
Patrick McHardy [Thu, 3 Mar 2011 21:32:07 +0000]
netlink: kill eff_cap from struct netlink_skb_parms

Netlink message processing in the kernel is synchronous these days,
capabilities can be checked directly in security_netlink_recv() from
the current process.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Reviewed-by: James Morris <jmorris@namei.org>
[chrisw: update to include pohmelfs and uvesafb]
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoeql: Convert printks to pr_<level> and netdev_<level>
Joe Perches [Thu, 3 Mar 2011 21:30:20 +0000]
eql: Convert printks to pr_<level> and netdev_<level>

Add pr_fmt.

Removed trailing "\n" from version,
add back via pr_info("%s\n", version);

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoMAINTAINERS: Add Andy Gospodarek as co-maintainer.
Jay Vosburgh [Thu, 3 Mar 2011 10:43:10 +0000]
MAINTAINERS: Add Andy Gospodarek as co-maintainer.

Acked-by: Andy Gospodarek <andy@greyhouse.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agomii: Convert printks to netdev_info
Joe Perches [Thu, 3 Mar 2011 20:55:08 +0000]
mii: Convert printks to netdev_info

Add a bit more data to the output.
Convert string speeds to integer.
Object size reduced a tiny bit.
$ size drivers/net/mii.o*
   text    data     bss     dec     hex filename
   4155      56    1000    5211    145b drivers/net/mii.o.new
   4184      56    1000    5240    1478 drivers/net/mii.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agomv643xx_eth: Use netdev_<level> and pr_<level>
Joe Perches [Wed, 2 Mar 2011 17:50:35 +0000]
mv643xx_eth: Use netdev_<level> and pr_<level>

Use the current logging styles.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agotlan: Use pr_fmt, pr_<level> and netdev_<level>
Joe Perches [Tue, 1 Mar 2011 06:56:33 +0000]
tlan: Use pr_fmt, pr_<level> and netdev_<level>

Neatening and standardization to the current logging mechanisms.
Miscellaneous speen/speed typo correction.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agotlan: Remove changelog
Joe Perches [Tue, 1 Mar 2011 06:56:32 +0000]
tlan: Remove changelog

As it isn't necessary nor really useful any longer.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agobenet: use GFP_KERNEL allocations when possible
Eric Dumazet [Tue, 1 Mar 2011 05:48:12 +0000]
benet: use GFP_KERNEL allocations when possible

Extend be_alloc_pages() with a gfp parameter, so that we use GFP_KERNEL
allocations instead of GFP_ATOMIC when not running in softirq context.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Thu, 3 Mar 2011 20:44:22 +0000]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: zero proper structure size for geometry calls

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke...
Linus Torvalds [Thu, 3 Mar 2011 20:42:48 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: fix regression that i-flag is not set on changeless checkpoints

9 years agotun: Convert logging messages to pr_<level> and tun_debug
Joe Perches [Wed, 2 Mar 2011 07:18:10 +0000]
tun: Convert logging messages to pr_<level> and tun_debug

Use the current logging forms with pr_fmt.
Convert DBG macro to tun_debug, use netdev_printk as well.
Add printf verification when TUN_DEBUG not defined.
Miscellaneous comment typo fix.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agonet: add Faraday FTMAC100 10/100 Ethernet driver
Po-Yu Chuang [Mon, 28 Feb 2011 20:48:49 +0000]
net: add Faraday FTMAC100 10/100 Ethernet driver

FTMAC100 Ethernet Media Access Controller supports 10/100 Mbps and
MII.  This driver has been working on some ARM/NDS32 SoC's including
Faraday A320 and Andes AG101.

Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoipv6: Use ERR_CAST in addrconf_dst_alloc.
David S. Miller [Thu, 3 Mar 2011 20:10:37 +0000]
ipv6: Use ERR_CAST in addrconf_dst_alloc.

Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agor8169: disable ASPM
Stanislaw Gruszka [Tue, 22 Feb 2011 02:00:11 +0000]
r8169: disable ASPM

For some time is known that ASPM is causing troubles on r8169, i.e. make
device randomly stop working without any errors in dmesg.

Currently Tomi Leppikangas reports that system with r8169 device hangs
with MCE errors when ASPM is enabled:
https://bugzilla.redhat.com/show_bug.cgi?id=642861#c4

Lets disable ASPM for r8169 devices at all, to avoid problems with
r8169 PCIe devices at least for some users.

Reported-by: Tomi Leppikangas <tomi.leppikangas@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Thu, 3 Mar 2011 19:28:35 +0000]
Merge branch 'master' of /linux/kernel/git/jkirsher/net-next-2.6

9 years agoipv4: Fix __ip_dev_find() to use ifa_local instead of ifa_address.
David S. Miller [Thu, 3 Mar 2011 19:24:19 +0000]
ipv4: Fix __ip_dev_find() to use ifa_local instead of ifa_address.

Reported-by: Stephen Hemminger <shemminger@vyatta.com>
Reported-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agonet_sched: reduce fifo qdisc size
Eric Dumazet [Thu, 3 Mar 2011 19:10:02 +0000]
net_sched: reduce fifo qdisc size

Because of various alignements [SLUB / qdisc], we use 512 bytes of
memory for one {p|b}fifo qdisc, instead of 256 bytes on 64bit arches and
192 bytes on 32bit ones.

Move the "u32 limit" inside "struct Qdisc" (no impact on other qdiscs)

Change qdisc_alloc(), first trying a regular allocation before an
oversized one.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agonetlink: kill loginuid/sessionid/sid members from struct netlink_skb_parms
Patrick McHardy [Thu, 3 Mar 2011 18:55:40 +0000]
netlink: kill loginuid/sessionid/sid members from struct netlink_skb_parms

Netlink message processing in the kernel is synchronous these days, the
session information can be collected when needed.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoipv4: Fix crash in dst_release when udp_sendmsg route lookup fails.
David S. Miller [Thu, 3 Mar 2011 18:38:01 +0000]
ipv4: Fix crash in dst_release when udp_sendmsg route lookup fails.

As reported by Eric:

[11483.697233] IP: [<c12b0638>] dst_release+0x18/0x60
 ...
[11483.697741] Call Trace:
[11483.697764]  [<c12fc9d2>] udp_sendmsg+0x282/0x6e0
[11483.697790]  [<c12a1c01>] ? memcpy_toiovec+0x51/0x70
[11483.697818]  [<c12dbd90>] ? ip_generic_getfrag+0x0/0xb0

The pointer passed to dst_release() is -EINVAL, that's because
we leave an error pointer in the local variable "rt" by accident.

NULL it out to fix the bug.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoblock: kill loop_mutex
Petr Uzel [Thu, 3 Mar 2011 16:48:50 +0000]
block: kill loop_mutex

Following steps lead to deadlock in kernel:

dd if=/dev/zero of=img bs=512 count=1000
losetup -f img
mkfs.ext2 /dev/loop0
mount -t ext2 -o loop /dev/loop0 mnt
umount mnt/

Stacktrace:
[<c102ec04>] irq_exit+0x36/0x59
[<c101502c>] smp_apic_timer_interrupt+0x6b/0x75
[<c127f639>] apic_timer_interrupt+0x31/0x38
[<c101df88>] mutex_spin_on_owner+0x54/0x5b
[<fe2250e9>] lo_release+0x12/0x67 [loop]
[<c10c4eae>] __blkdev_put+0x7c/0x10c
[<c10a4da5>] fput+0xd5/0x1aa
[<fe2250cf>] loop_clr_fd+0x1a9/0x1b1 [loop]
[<fe225110>] lo_release+0x39/0x67 [loop]
[<c10c4eae>] __blkdev_put+0x7c/0x10c
[<c10a59d9>] deactivate_locked_super+0x17/0x36
[<c10b6f37>] sys_umount+0x27e/0x2a5
[<c10b6f69>] sys_oldumount+0xb/0xe
[<c1002897>] sysenter_do_call+0x12/0x26
[<ffffffff>] 0xffffffff

Regression since 2a48fc0ab24241755dc9, which introduced the private
loop_mutex as part of the BKL removal process.

As per [1], the mutex can be safely removed.

[1] http://www.gossamer-threads.com/lists/linux/kernel/1341930

Addresses: https://bugzilla.novell.com/show_bug.cgi?id=669394
Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=29172

Signed-off-by: Petr Uzel <petr.uzel@suse.cz>
Cc: stable@kernel.org
Reviewed-by: Nikanth Karthikesan <knikanth@suse.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

9 years agoblktrace: Remove blk_fill_rwbs_rq.
Tao Ma [Thu, 3 Mar 2011 15:53:20 +0000]
blktrace: Remove blk_fill_rwbs_rq.

If we enable trace events to trace block actions, We use
blk_fill_rwbs_rq to analyze the corresponding actions
in request's cmd_flags, but we only choose the minor 2 bits
from it, so most of other flags(e.g, REQ_SYNC) are missing.
For example, with a sync write we get:
write_test-2409  [001]   160.013869: block_rq_insert: 3,64 W 0 () 258135 + =
8 [write_test]

Since now we have integrated the flags of both bio and request,
it is safe to pass rq->cmd_flags directly to blk_fill_rwbs and
blk_fill_rwbs_rq isn't needed any more.

With this patch, after a sync write we get:
write_test-2417  [000]   226.603878: block_rq_insert: 3,64 WS 0 () 258135 +=
 8 [write_test]

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

9 years agoixgbe: cleanup copyright string for 2011
Don Skidmore [Wed, 23 Feb 2011 09:58:39 +0000]
ixgbe: cleanup copyright string for 2011

Updating the copyrights for 2011 as well as make the ixgbe_copyright string
a constant.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: add function pointer for semaphore function
Don Skidmore [Fri, 25 Feb 2011 01:58:04 +0000]
ixgbe: add function pointer for semaphore function

The X540 devices grabs semaphores differently than 82599 and 82598
devices do.  They do however also grab them in allot of the same
functions.  So I'm adding a new MAC operation function pointer to
allow us to use the correct function based on our MAC type.  I'm also
changing all the semaphore calls to use this new function pointer.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: X540 Cleanup
Greg Rose [Tue, 1 Mar 2011 04:37:15 +0000]
ixgbe: X540 Cleanup

Clean up commented out include file and use #define instead of hard coded
value for number of RAR entries.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: cleanup handling of I2C interface to PHY
Emil Tantilov [Sat, 19 Feb 2011 08:43:55 +0000]
ixgbe: cleanup handling of I2C interface to PHY

The I2C interface was not being correctly locked down per port.  As such
this can lead to race conditions that can cause issues.  This patch cleans
up the handling to make certain we are not experiencing racy I2C access.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: store permanent address before initializing Rx addresses
Emil Tantilov [Sat, 19 Feb 2011 08:43:49 +0000]
ixgbe: store permanent address before initializing Rx addresses

We were reading the address after it had been initialized and this results
in the permanent address on the system being changed.  This change corrects
that by storing the address before we re-initialize it.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: Numerous whitespace / formatting cleanups
Emil Tantilov [Sat, 19 Feb 2011 08:43:44 +0000]
ixgbe: Numerous whitespace / formatting cleanups

This patch contains a number of whitespace and formatting cleanups.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: Specific check for 100 Full link speed
Emil Tantilov [Sat, 19 Feb 2011 08:43:39 +0000]
ixgbe: Specific check for 100 Full link speed

This patch specifically checks for 100 Full link speed instead of
assuming we are linked at 100 if not linked at 10G and 1G.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: Drop unused code for setting up unicast addresses
Emil Tantilov [Sat, 19 Feb 2011 08:43:34 +0000]
ixgbe: Drop unused code for setting up unicast addresses

This change removes the unused code that was setting up the uc_addr_list.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: rework ixgbe MTA handling to not drop packets
Emil Tantilov [Fri, 18 Feb 2011 08:58:27 +0000]
ixgbe: rework ixgbe MTA handling to not drop packets

This change modifies the ixgbe drivers so that it will not drop the
multicast filters while updating them.  Instead it uses an intermediate
table to store the filter and then writes that filter to the hardware.

Based on original patch from Dave Boutcher <daveboutcher@gmail.com>

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Reported-by: Dave Boutcher <daveboutcher@gmail.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: cleanup X540 PHY reset function pointer
Don Skidmore [Fri, 18 Feb 2011 19:29:46 +0000]
ixgbe: cleanup X540 PHY reset function pointer

The X540 PHY reset pointer isn't currently used which is a good thing as it
wouldn't work as implemented.  On top of that the X540 firmware is written
with the assumption that is does not need to be reset for proper
initialization so it's not needed.  I'm just assigning the pointer at NULL
as the current implementation is rather misleading.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: Bounds checking for set_rar, clear_rar, set_vmdq, clear_vmdq
Emil Tantilov [Thu, 17 Feb 2011 11:34:58 +0000]
ixgbe: Bounds checking for set_rar, clear_rar, set_vmdq, clear_vmdq

This change makes it so that out of bounds requests to these calls will
now return IXGBE_ERR_INVALID_ARGUMENT instead of returning 0.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: Fill out PCIe speed and width enums with values
Emil Tantilov [Thu, 17 Feb 2011 11:34:53 +0000]
ixgbe: Fill out PCIe speed and width enums with values

This patch fills in the values for bus speed and width of the
ixgbe_bus_speed and ixgbe_bus_width enums.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: add polling test to end of PHY reset
Emil Tantilov [Wed, 16 Feb 2011 01:38:13 +0000]
ixgbe: add polling test to end of PHY reset

Some PHYs require that we poll the reset bit and wait for it to clear
before continuing initialization.  As such we should add this check to the
end of the ixgbe_reset_phy_generic routine.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: Check link wants report current link state
Emil Tantilov [Wed, 16 Feb 2011 01:38:08 +0000]
ixgbe: Check link wants report current link state

Currently check link reports the link state as down, if at any time
the link had previously gone down since the last time the LINKS
register was read.  This does not accurately reflect the function of
the check link call, which should be to return the CURRENT link
state. Code now reads the LINKS registers twice, once to clear the
previous and again to get the current value.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: cleanup code in ixgbe_identify_sfp_module_generic
Emil Tantilov [Wed, 16 Feb 2011 10:14:00 +0000]
ixgbe: cleanup code in ixgbe_identify_sfp_module_generic

This change cleans up several issues in ixgbe_identify_sfp_module_generic
including whitespace, redundant code, I2C EEPROM reads without exception
handling, and an if/elseif/else without braces.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: Add ability to double reset on failure to clear master enable
Emil Tantilov [Mon, 14 Feb 2011 08:45:13 +0000]
ixgbe: Add ability to double reset on failure to clear master enable

Double resets are required for recovery from certain error conditions.
Between resets, it is necessary to stall to allow time for any pending HW
events to complete. We use 1usec since that is what is needed for
ixgbe_disable_pcie_master(). The second reset then clears out any effects
of those events.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: set media type for 82599 T3 LOM
Emil Tantilov [Sat, 12 Feb 2011 10:52:07 +0000]
ixgbe: set media type for 82599 T3 LOM

The media type was not being set for the 82599 T3 LAN on motherboard.  This
change corrects that.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: balance free_irq calls with request_irq calls
Alexander Duyck [Tue, 15 Feb 2011 02:12:05 +0000]
ixgbe: balance free_irq calls with request_irq calls

We were incorrectly freeing IRQs that we had not requested.  This change
corrects that by making certain we only free q_vectors that we have
requested IRQs for.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: cleanup logic related to HW semaphores
Emil Tantilov [Tue, 8 Feb 2011 09:42:41 +0000]
ixgbe: cleanup logic related to HW semaphores

This change cleans up much of the logic related to the hardware semaphores
on the adapters. There were a number of issues with timings that needed to
be addressed.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbe: cleanup wake on LAN defines
Emil Tantilov [Tue, 8 Feb 2011 09:48:32 +0000]
ixgbe: cleanup wake on LAN defines

This change just cleans up a few defines in ixgbe_type.h related to wake on LAN.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoixgbevf: Fix Compiler Warnings
Greg Rose [Fri, 25 Feb 2011 03:34:18 +0000]
ixgbevf: Fix Compiler Warnings

Fix Compiler warnings of variables that are initialized but not used.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoigb: Fix strncpy calls to be safe per source code review tools
Carolyn Wyborny [Wed, 2 Mar 2011 01:11:26 +0000]
igb: Fix strncpy calls to be safe per source code review tools

This fix changes the remaining calls to strncpy that have not yet
been changed to use the "sizeof(buf) - 1" syntax rather than just
a number for buffer size.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoigb: Fix reg pattern test in ethtool for i350 devices
Carolyn Wyborny [Thu, 24 Feb 2011 03:12:15 +0000]
igb: Fix reg pattern test in ethtool for i350 devices

This fixes the reg_pattern_test so that the test does not fail
on i350 parts.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agoigb: warn if max_vfs limit is exceeded
Stefan Assmann [Thu, 24 Feb 2011 20:03:31 +0000]
igb: warn if max_vfs limit is exceeded

Currently there's no warning printed when max_vfs > 7 is specified with
igb and the maximum of 7 is silently enforced. This patch prints a
warning and informs the user of the actions taken.

Signed-off-by: Stefan Assmann <sassmann@redhat.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

9 years agohfs: fix rename() over non-empty directory
Al Viro [Thu, 3 Mar 2011 04:46:51 +0000]
hfs: fix rename() over non-empty directory

merge hfs_unlink() and hfs_rmdir(), while we are at it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agoudf: fix i_nlink limit
Al Viro [Wed, 2 Mar 2011 15:15:26 +0000]
udf: fix i_nlink limit

(256 << sizeof(x)) - 1 is not the maximal possible value of x...
In reality, the maximal allowed value for UDF FileLinkCount is
65535.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agofix reiserfs mkdir() breakage
Al Viro [Wed, 2 Mar 2011 14:35:13 +0000]
fix reiserfs mkdir() breakage

if directory has so many subdirectories that its link count is set
to 1 (i.e. "can't tell accurately") and reiserfs_new_inode() fails,
we shouldn't decrement the parent's link count in cleanup path;
that's what DEC_DIR_INODE_NLINK() is for.  As it is, we end up
with parent suddenly getting zero i_nlink, with very unpleasant
effects.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agoexofs: i_nlink races in rename()
Al Viro [Wed, 2 Mar 2011 21:42:38 +0000]
exofs: i_nlink races in rename()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agonilfs2: i_nlink races in rename()
Al Viro [Wed, 2 Mar 2011 17:01:13 +0000]
nilfs2: i_nlink races in rename()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agominix: i_nlink races in rename()
Al Viro [Wed, 2 Mar 2011 14:41:38 +0000]
minix: i_nlink races in rename()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agoufs: i_nlink races in rename()
Al Viro [Wed, 2 Mar 2011 14:40:21 +0000]
ufs: i_nlink races in rename()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agosysv: i_nlink races in rename()
Al Viro [Wed, 2 Mar 2011 14:38:45 +0000]
sysv: i_nlink races in rename()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

9 years agocxgb{3,4}*: improve Kconfig dependencies
Dimitris Michailidis [Mon, 28 Feb 2011 17:34:15 +0000]
cxgb{3,4}*: improve Kconfig dependencies

- Remove the dependency of cxgb4 and cxgb4vf on INET.  cxgb3 really
  depends on INET, keep it but add it directly to the driver's Kconfig
  entry.
- Make the iSCSI drivers cxgb3i and cxgb4i available in the SCSI menu
  without requiring any options in the net driver menu to be enabled
  first.  Add needed selects so the iSCSI drivers can build their
  corresponding net drivers.
- Remove CHELSIO_T*_DEPENDS.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoRxRPC: Fix v1 keys
Anton Blanchard [Mon, 28 Feb 2011 03:27:53 +0000]
RxRPC: Fix v1 keys

commit 339412841d7 (RxRPC: Allow key payloads to be passed in XDR form)
broke klog for me. I notice the v1 key struct had a kif_version field
added:

-struct rxkad_key {
-       u16     security_index;         /* RxRPC header security index */
-       u16     ticket_len;             /* length of ticket[] */
-       u32     expiry;                 /* time at which expires */
-       u32     kvno;                   /* key version number */
-       u8      session_key[8];         /* DES session key */
-       u8      ticket[0];              /* the encrypted ticket */
-};

+struct rxrpc_key_data_v1 {
+       u32             kif_version;            /* 1 */
+       u16             security_index;
+       u16             ticket_length;
+       u32             expiry;                 /* time_t */
+       u32             kvno;
+       u8              session_key[8];
+       u8              ticket[0];
+};

However the code in rxrpc_instantiate strips it away:

data += sizeof(kver);
datalen -= sizeof(kver);

Removing kif_version fixes my problem.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agoAF_RXRPC: Handle receiving ACKALL packets
David Howells [Mon, 28 Feb 2011 03:27:43 +0000]
AF_RXRPC: Handle receiving ACKALL packets

The OpenAFS server is now sending ACKALL packets, so we need to handle them.
Otherwise we report a protocol error and abort.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agodcbnl: add support for retrieving peer configuration - cee
Shmulik Ravid [Sun, 27 Feb 2011 05:04:38 +0000]
dcbnl: add support for retrieving peer configuration - cee

This patch adds the support for retrieving the remote or peer DCBX
configuration via dcbnl for embedded DCBX stacks supporting the CEE DCBX
standard.

Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

9 years agodcbnl: add support for retrieving peer configuration - ieee
Shmulik Ravid [Sun, 27 Feb 2011 05:04:31 +0000]
dcbnl: add support for retrieving peer configuration - ieee

These 2 patches add the support for retrieving the remote or peer DCBX
configuration via dcbnl for embedded DCBX stacks. The peer configuration
is part of the DCBX MIB and is useful for debugging and diagnostics of
the overall DCB configuration. The first patch add this support for IEEE
802.1Qaz standard the second patch add the same support for the older
CEE standard. Diff for v2 - the peer-app-info is CEE specific.

Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>