Commit Graph

455555 Commits

Author SHA1 Message Date
Jon Paul Maloy 5a379074a7 tipc: introduce message evaluation function
When a message arrives in a node and finds no destination
socket, we may need to drop it, reject it, or forward it after
a secondary destination lookup. The latter two cases currently
results in a code path that is perceived as complex, because it
follows a deep call chain via obscure functions such as
net_route_named_msg() and net_route_msg().

We now introduce a function, tipc_msg_eval(), that takes the
decision about whether such a message should be rejected or
forwarded, but leaves it to the caller to actually perform
the indicated action.

If the decision is 'reject', it is still the task of the recently
introduced function tipc_msg_reverse() to take the final decision
about whether the message is rejectable or not. In the latter case
it drops the message.

As a result of this change, we can finally eliminate the function
net_route_named_msg(), and hence become independent of net_route_msg().

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 12:50:55 -07:00
Jon Paul Maloy 8db1bae30b tipc: separate building and sending of rejected messages
The way we build and send rejected message is currenty perceived as
hard to follow, partly because we let the transmission go via deep
call chains through functions such as tipc_reject_msg() and
net_route_msg().

We want to remove those functions, and make the call sequences shallower
and simpler. For this purpose, we separate building and sending of
rejected messages. We build the reject message using the new function
tipc_msg_reverse(), and let the transmission go via the newly introduced
tipc_link_xmit2() function, as all transmission eventually will do. We
also ensure that all calls to tipc_link_xmit2() are made outside
port_lock/bh_lock_sock.

Finally, we replace all calls to tipc_reject_msg() with the two new
calls at all locations in the code that we want to keep. The remaining
calls are made from code that we are planning to remove, along with
tipc_reject_msg() itself.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 12:50:55 -07:00
Jon Paul Maloy 067608e9d0 tipc: introduce direct iovec to buffer chain fragmentation function
Fragmentation at message sending is currently performed in two
places in link.c, depending on whether data to be transmitted
is delivered in the form of an iovec or as a big sk_buff. Those
functions are also tightly entangled with the send functions
that are using them.

We now introduce a re-entrant, standalone function, tipc_msg_build2(),
that builds a packet chain directly from an iovec. Each fragment is
sized according to the MTU value given by the caller, and is prepended
with a correctly built fragment header, when needed. The function is
independent from who is calling and where the chain will be delivered,
as long as the caller is able to indicate a correct MTU.

The function is tested, but not called by anybody yet. Since it is
incompatible with the existing tipc_msg_build(), and we cannot yet
remove that function, we have given it a temporary name.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 12:50:55 -07:00
Jon Paul Maloy 16e166b88c tipc: make link mtu easily accessible from socket
Message fragmentation is currently performed at link level, inside
the protection of node_lock. This potentially binds up the sending
link structure for a long time, instead of letting it do other tasks,
such as handle reception of new packets.

In this commit, we make the MTUs of each active link become easily
accessible from the socket level, i.e., without taking any spinlock
or dereferencing the target link pointer. This way, we make it possible
to perform fragmentation in the sending socket, before sending the
whole fragment chain to the link for transport.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 12:50:55 -07:00
Jon Paul Maloy 4f1688b2c6 tipc: introduce send functions for chained buffers in link
The current link implementation provides several different transmit
functions, depending on the characteristics of the message to be
sent: if it is an iovec or an sk_buff, if it needs fragmentation or
not, if the caller holds the node_lock or not. The permutation of
these options gives us an unwanted amount of unnecessarily complex
code.

As a first step towards simplifying the send path for all messages,
we introduce two new send functions at link level, tipc_link_xmit2()
and __tipc_link_xmit2(). The former looks up a link to the message
destination, and if one is found, it grabs the node lock and calls
the second function, which works exclusively inside the node lock
protection. If no link is found, and the destination is on the same
node, it delivers the message directly to the local destination
socket.

The new functions take a buffer chain where all packet headers are
already prepared, and the correct MTU has been used. These two
functions will later replace all other link-level transmit functions.

The functions are not backwards compatible, so we have added them
as new functions with temporary names. They are tested, but have no
users yet. Those will be added later in this series.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 12:50:54 -07:00
Jon Paul Maloy e4de5fab80 tipc: use negative error return values in functions
In some places, TIPC functions returns positive integers as return
codes. This goes against standard Linux coding practice, and may
even cause problems in some cases.

We now change the return values of the functions filter_rcv()
and filter_connect() to become signed integers, and return
negative error codes when needed. The codes we use in these
particular cases are still TIPC specific, since they are both
part of the TIPC API and have no correspondence in errno.h

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 12:50:54 -07:00
Jon Paul Maloy 3d09fc4244 tipc: eliminate case of writing to freed memory
In the function tipc_nodesub_notify() we call a function pointer
aggregated into the object to be notified, whereafter we set
the function pointer to NULL. However, in some cases the function
pointed to will free the struct containing the function pointer,
resulting in a write to already freed memory.

This bug seems to always have been there, without causing any
notable harm.

In this commit we fix the problem by inverting the order of the
zeroing and the function call.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-27 12:50:54 -07:00
David S. Miller f5b265039f Merge branch 'xgbe-next'
Tom Lendacky says:

====================
amd-xgbe: AMD 10Gb Ethernet driver updates

The following series fixes some bugs and provides new/changed support
in the driver.

- Make all the defines in the xgbe.h file unique by prefixing them with
  XGBE_ if they are not currently using the prefix.
- VLAN CTAGs are supplied in context descriptors. Tell the hardware to
  look in the Tx context descriptor, and not a register, for the VLAN CTAG
  to be inserted in the packet.
- The hardware will indicate a VLAN packet has been received even if VLAN
  CTAG stripping is currently disabled.  Only indicate that a VLAN CTAG
  has been stripped for the current packet if stripping is enabled.
- Add support for VLAN filtering
- Modify destination address filtering to use the hardware hash tables
- Eliminate a checkpatch warning by replacing sscanf with kstrtouint

This patch series is based on net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-26 17:14:16 -07:00
Lendacky, Thomas 66f95c35c4 amd-xgbe: Resolve checkpatch warning about sscanf usage
Checkpatch issued a warning preferring to use kstrto<type> when
using a single variable sscanf.  Change the sscanf invocation to
a kstrtouint call.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-26 17:14:04 -07:00
Lendacky, Thomas b85e4d8960 amd-xgbe: Change destination address filtering support
Currently the driver makes use of the additional mac address
registers in the hardware to provide perfect filtering.  The
hardware can also have a set of hash table registers that can
be used for imperfect filtering.  By using imperfect filtering
the additional mac address registers can be used for layer 2
filtering support.  Use the hash table registers if the device
has them.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-26 17:14:04 -07:00
Lendacky, Thomas 801c62d945 amd-xgbe: Add support for VLAN filtering
This patch adds support for (imperfect) filtering of
VLAN tag ids using a 16-bit filter hash table.  When
VLANs are added, a 4-bit hash is calculated with the
result indicating the bit in the hash table to set.
This table is used by the hardware to drop packets with
a VLAN id that does not hash to a set bit in the table.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-26 17:14:04 -07:00
Lendacky, Thomas c52e9c6385 amd-xgbe: VLAN Rx tag stripping fix
When receiving a VLAN packet check to be sure that VLAN
RX CTAG stripping is enabled before indicating that the
tag has been stripped in the packet information data
structure.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-26 17:14:04 -07:00
Lendacky, Thomas 6e5eed042f amd-xgbe: VLAN Tx tag insertion fix
The MAC_VLAN_Incl register (0x0060) must be set to indicate
that the VLAN tag to be inserted comes from a Tx context
descriptor and not the MAC_VLAN_Incl register.  Also, even
though it is the default, explicitly set the type of tag to
be inserted as a CTAG.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-26 17:14:03 -07:00
Lendacky, Thomas d0a8ba6cba amd-xgbe: Make defines in xgbe.h unique
In order to avoid conflicts with other include files, add
a prefix to the defines in xgbe.h.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-26 17:14:03 -07:00
David S. Miller 9b8d90b963 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-25 22:40:43 -07:00
Linus Torvalds d7933ab727 Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
 "Small set of misc cifs/smb3 fixes"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  [CIFS] fix mount failure with broken pathnames when smb3 mount with mapchars option
  cifs: revalidate mapping prior to satisfying read_iter request with cache=loose
  fs/cifs: fix regression in cifs_create_mf_symlink()
2014-06-25 21:47:28 -07:00
Linus Torvalds 2a80ff867f Various minor fixes
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Various minor fixes"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (gpio-fan) Change name used in hwmon_device_register_with_groups
  hwmon: (emc1403) Fix missing 'select REGMAP_I2C' in Kconfig
  hwmon: (ntc_thermistor) Use the manufacturer name properly
  devicetree: bindings: Document murata vendor prefix
  hwmon: (w83l786ng) Report correct minimum fan speed
2014-06-25 21:38:45 -07:00
Linus Torvalds f40ede392d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix crash in ipvs tot_stats estimator, from Julian Anastasov.

 2) Fix OOPS in nf_nat on netns removal, from Florian Westphal.

 3) Really really really fix locking issues in slip and slcan tty write
    wakeups, from Tyler Hall.

 4) Fix checksum offloading in fec driver, from Fugang Duan.

 5) Off by one in BPF instruction limit test, from Kees Cook.

 6) Need to clear all TSO capability flags when doing software TSO in
    tg3 driver, from Prashant Sreedharan.

 7) Fix memory leak in vlan_reorder_header() error path, from Li
    RongQing.

 8) Fix various bugs in xen-netfront and xen-netback multiqueue support,
    from David Vrabel and Wei Liu.

 9) Fix deadlock in cxgb4 driver, from Li RongQing.

10) Prevent double free of no-cache DST entries, from Eric Dumazet.

11) Bad csum_start handling in skb_segment() leads to crashes when
    forwarding, from Tom Herbert.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits)
  net: fix setting csum_start in skb_segment()
  ipv4: fix dst race in sk_dst_get()
  net: filter: Use kcalloc/kmalloc_array to allocate arrays
  trivial: net: filter: Change kerneldoc parameter order
  trivial: net: filter: Fix typo in comment
  net: allwinner: emac: Add missing free_irq
  cxgb4: use dev_port to identify ports
  xen-netback: bookkeep number of active queues in our own module
  tg3: Change nvram command timeout value to 50ms
  cxgb4: Not need to hold the adap_rcu_lock lock when read adap_rcu_list
  be2net: fix qnq mode detection on VFs
  of: mdio: fixup of_phy_register_fixed_link parsing of new bindings
  at86rf230: fix irq setup
  net: phy: at803x: fix coccinelle warnings
  net/mlx4_core: Fix the error flow when probing with invalid VF configuration
  tulip: Poll link status more frequently for Comet chips
  net: huawei_cdc_ncm: increase command buffer size
  drivers: net: cpsw: fix dual EMAC stall when connected to same switch
  xen-netfront: recreate queues correctly when reconnecting
  xen-netfront: fix oops when disconnected from backend
  ...
2014-06-25 21:08:24 -07:00
Tom Herbert de843723f9 net: fix setting csum_start in skb_segment()
Dave Jones reported that a crash is occurring in

csum_partial
tcp_gso_segment
inet_gso_segment
? update_dl_migration
skb_mac_gso_segment
__skb_gso_segment
dev_hard_start_xmit
sch_direct_xmit
__dev_queue_xmit
? dev_hard_start_xmit
dev_queue_xmit
ip_finish_output
? ip_output
ip_output
ip_forward_finish
ip_forward
ip_rcv_finish
ip_rcv
__netif_receive_skb_core
? __netif_receive_skb_core
? trace_hardirqs_on
__netif_receive_skb
netif_receive_skb_internal
napi_gro_complete
? napi_gro_complete
dev_gro_receive
? dev_gro_receive
napi_gro_receive

It looks like a likely culprit is that SKB_GSO_CB()->csum_start is
not set correctly when doing non-scatter gather. We are using
offset as opposed to doffset.

Reported-by: Dave Jones <davej@redhat.com>
Tested-by: Dave Jones <davej@redhat.com>
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 7e2b10c1e5 ("net: Support for multiple checksums with gso")
Acked-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 20:45:54 -07:00
Linus Torvalds ec71feae06 NFS client fixes for Linux 3.16
Highlights include:
 
 - Stable fix for a data corruption case due to incorrect cache validation
 - Fix a couple of false positive cache invalidations
 - Fix NFSv4 security negotiation issues
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Merge tag 'nfs-for-3.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:
 "Highlights include:

   - Stable fix for a data corruption case due to incorrect cache
     validation
   - Fix a couple of false positive cache invalidations
   - Fix NFSv4 security negotiation issues"

* tag 'nfs-for-3.16-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4: test SECINFO RPC_AUTH_GSS pseudoflavors for support
  NFS Return -EPERM if no supported or matching SECINFO flavor
  NFS check the return of nfs4_negotiate_security in nfs4_submount
  NFS: Don't mark the data cache as invalid if it has been flushed
  NFS: Clear NFS_INO_REVAL_PAGECACHE when we update the file size
  nfs: Fix cache_validity check in nfs_write_pageuptodate()
2014-06-25 20:06:06 -07:00
Geert Uytterhoeven 644a918d20 enic: Make dummy rfs functions inline to fix !CONFIG_RFS_ACCEL build
If CONFIG_RFS_ACCEL=n:

drivers/net/ethernet/cisco/enic/enic_main.c: In function 'enic_open':
drivers/net/ethernet/cisco/enic/enic_main.c:1603:2: error: implicit declaration of function 'enic_rfs_flw_tbl_init' [-Werror=implicit-function-declaration]
drivers/net/ethernet/cisco/enic/enic_main.c: In function 'enic_stop':
drivers/net/ethernet/cisco/enic/enic_main.c:1630:2: error: implicit declaration of function 'enic_rfs_flw_tbl_free' [-Werror=implicit-function-declaration]

Introduced in commit a145df23ef ("enic: Add
Accelerated RFS support").

Dummy functions are provided, but their prototypes are missing, causing the
build failure.  Provide dummy static inline functions instead to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 18:04:41 -07:00
Erik Hugne a6eacef7fb tipc: bump max configurable window size
The maximum window size is limited by the sequence gap field, which
was expanded with bd7845337b
("tipc: Expand link sequence gap field to 13 bits")
We remove the artificial limit that prevents the link window to be
set larger than 150.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 18:03:41 -07:00
David S. Miller 0b2fda8965 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2014-06-24

This series contains updates to i40e and i40evf.

Greg provides a patch to stop the VF device after setting its MAC address.
This is due to if the host VMM administrator has changed the VF device's MAC
address then the i40e driver needs to halt the VF device so that the
administrator will be forced to reload the VF driver so that the VF driver
will start using the newly assigned MAC address.

Shannon provides several patches for i40e, first makes prep_for_test() a
void function since the return value was being ignored for the most part
by all its callers.  Adds a log warning when the firmware's API minor/major
number is not what we expect to assist the user by informing them they
may need to update their NVM or SW.  Cleans up a stray print message
so that it is similar to other print messages.  Ensures to set the
WoL flag when setting LAA and allow the user to set LAA again.  So do
not short-circuit the LAA assignment when the driver thinks it has
already been done as it is possible that the user might want to force
the address setting again.  Provides a couple more LAA fixes to ensure
the LAA gets restored after resets.

Neerav provides a patch for i40e to add a PF reset when a malicious driver
event for the PF occurs.  As per the specification when the PF driver
receives a malicious driver event the queue that caused the event is
already stopped and it is expected that the function that owns the queue
will reset the queue, but in some cases it may not be possible to determine
the queue, so it is suggested to reset the whole function.

Carolyn fixes ethtool coalesce settings to allow 0 as a disable value and
adds message to user about invalid values.

Jesse removes a reserved type which was not removed from the code.

Catherine provides a patch to add the ability to enable/disable link from
set_link)restart_an() which will make it easy to toggle link without
calling set_phy_config() when no other link settings need to change.

Anjali provides a patch to ensure we do a PF reset on Tx hang and that
way we avoid any Malicious Driver Detect (MDD) events because of a Tx
queue disable failure.

v2:
 - fixed the un-needed return in patch 2 based on feedback from Sergei Shtylyov
 - added punctuation to print statements and code comment based on
   feedback from Sergei Shtylyov
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 17:55:45 -07:00
Joe Perches a69f5edb8b mac_pton: Use bool not int return
Use bool instead of int as the return type.

All uses are tested with !.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 17:45:43 -07:00
Eric Dumazet f886497212 ipv4: fix dst race in sk_dst_get()
When IP route cache had been removed in linux-3.6, we broke assumption
that dst entries were all freed after rcu grace period. DST_NOCACHE
dst were supposed to be freed from dst_release(). But it appears
we want to keep such dst around, either in UDP sockets or tunnels.

In sk_dst_get() we need to make sure dst refcount is not 0
before incrementing it, or else we might end up freeing a dst
twice.

DST_NOCACHE set on a dst does not mean this dst can not be attached
to a socket or a tunnel.

Then, before actual freeing, we need to observe a rcu grace period
to make sure all other cpus can catch the fact the dst is no longer
usable.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dormando <dormando@rydia.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 17:41:44 -07:00
Tobias Klauser 99e72a0fed net: filter: Use kcalloc/kmalloc_array to allocate arrays
Use kcalloc/kmalloc_array to make it clear we're allocating arrays. No
integer overflow can actually happen here, since len/flen is guaranteed
to be less than BPF_MAXINSNS (4096). However, this changed makes sure
we're not going to get one if BPF_MAXINSNS were ever increased.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:40:02 -07:00
Tobias Klauser 677a9fd3e6 trivial: net: filter: Change kerneldoc parameter order
Change the order of the parameters to sk_unattached_filter_create() in
the kerneldoc to reflect the order they appear in the actual function.

This fix is only cosmetic, in the generated doc they still appear in the
correct order without the fix.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:38:54 -07:00
Tobias Klauser 285276e72c trivial: net: filter: Fix typo in comment
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:38:54 -07:00
Eric Dumazet f6d8cb2eed inet: reduce TLB pressure for listeners
It seems overkill to use vmalloc() for typical listeners with less than
2048 hash buckets. Try kmalloc() and fallback to vmalloc() to reduce TLB
pressure.

Use kvfree() helper as it is now available.
Use ilog2() instead of a loop.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:37:24 -07:00
WANG Cong bb446c19fe veth: add netpoll support
It is trivial to add netpoll support to veth, since
it is not a stacked device, we don't need to setup and
clean up netpoll.

Reported-by: Stefan Priebe <s.priebe@profihost.ag>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:35:37 -07:00
Maxime Ripard b91113282b net: allwinner: emac: Add missing free_irq
If the mdio probe function fails in emac_open, the interrupt we just requested
isn't freed. If emac_open is called again, for example because we try to set up
the interface again, the kernel will oops because the interrupt wasn't properly
released.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: <stable@vger.kernel.org> # 3.11+
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:31:17 -07:00
David S. Miller 13ec7a6b9d Merge branch 'broadcom_rebranding'
Jitendra Kalsaria says:

====================
Rebranding changes for bnx2 and cnic driver

The following set of patches are for rebranding Broadcom bnx2 and cnic driver as QLogic drivers.
Please apply this series to net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:28:01 -07:00
Jitendra Kalsaria f1d1baebd1 MAINTAINERS: Update bnx2 maintainers
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:27:27 -07:00
Jitendra Kalsaria d7afae05ad cnic: Rebranding cnic driver.
o QLogic has acquired the NetXtremeII products and drivers from Broadcom.
  This patch re-brands cnic driver as a QLogic driver

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:27:27 -07:00
Jitendra Kalsaria 28c4ec0df6 bnx2: Rebranding bnx2 driver.
o QLogic has acquired the NetXtremeII products and drivers from Broadcom.
  This patch re-brands bnx2 driver as a QLogic driver

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:27:27 -07:00
Fabian Frederick 1f74714f1e net/dsa/dsa.c: remove unnecessary null test before kfree
Fix checkpatch warning:
WARNING: kfree(NULL) is safe this check is probably not required

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: netdev@vger.kernel.org
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:15:16 -07:00
David S. Miller cb8eb77663 Merge branch 'crc32'
Daniel Borkmann says:

====================
crc32 combine improvements

So almost a month passed, and I don't want this to get lost
somewhere. I have applied the feedback given at that time to
this set, rebased plus tested it against latest net-next. I
decided to route this via netdev as it improves performance
upon library code that provides library bits for SCTP, i.e.
for non-linear skb csum handling in IPVS. Thus, resending
this for George before it gets lost.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:04:09 -07:00
George Spelvin d8f1c4778e lib: crc32: Add some additional __pure annotations
In case they help the compiler.

Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:04:00 -07:00
George Spelvin 4fa8e03b22 lib: crc32: Mark test data __initconst
So it gets discarded after the selftest.

Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:03:59 -07:00
George Spelvin 6d514b4e77 lib: crc32: Greatly shrink CRC combining code
There's no need for a full 32x32 matrix, when rows before the last are
just shifted copies of the rows after them.

There's still room for improvement (especially on X86 processors with
CRC32 and PCLMUL instructions), but this is a large step in the
right direction [which is in particular useful for its current user,
namely SCTP checksumming over multiple skb frags[] entries, i.e. in
IPVS balancing when other CRC32 offloads are not available].

The internal primitive is now called crc32_generic_shift and takes one
less argument; the XOR with crc2 is done in inline wrappers.

Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:03:59 -07:00
Thadeu Lima de Souza Cascardo 40c9f8ab6c cxgb4: use dev_port to identify ports
Commit 3f85944fe2 ("net: Add sysfs file
for port number") introduce dev_port to network devices. cxgb4 adapters
have multiple ports on the same PCI function, and used dev_id to
identify those ports. That use was removed by commit
8c367fcbe6 ("cxgb4: Do not set
net_device::dev_id to VI index"), since dev_id should be used only when
devices share the same MAC address.

Using dev_port for cxgb4 allows different ports on the same PCI function
to be identified.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 16:01:54 -07:00
Wei Liu f7b50c4e7c xen-netback: bookkeep number of active queues in our own module
The original code uses netdev->real_num_tx_queues to bookkeep number of
queues and invokes netif_set_real_num_tx_queues to set the number of
queues. However, netif_set_real_num_tx_queues doesn't allow
real_num_tx_queues to be smaller than 1, which means setting the number
to 0 will not work and real_num_tx_queues is untouched.

This is bogus when xenvif_free is invoked before any number of queues is
allocated. That function needs to iterate through all queues to free
resources. Using the wrong number of queues results in NULL pointer
dereference.

So we bookkeep the number of queues in xen-netback to solve this
problem. This fixes a regression introduced by multiqueue patchset in
3.16-rc1.

There's another bug in original code that the real number of RX queues
is never set. In current Xen multiqueue design, the number of TX queues
and RX queues are in fact the same. We need to set the numbers of TX and
RX queues to the same value.

Also remove xenvif_select_queue and leave queue selection to core
driver, as suggested by David Miller.

Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
CC: Ian Campbell <ian.campbell@citrix.com>
CC: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 15:59:47 -07:00
Prashant Sreedharan 66c965f5e1 tg3: Change nvram command timeout value to 50ms
Commit 506724c463 "tg3: Override clock,
link aware and link idle mode during NVRAM dump" changed the timeout
value for nvram command execution from 100ms to 1ms. But the 1ms
timeout value was only sufficient for nvram read operations but not
write operations for most of the devices supported by tg3 driver.
This patch sets the MAX to 50ms. Also it uses usleep_range instead
of udelay.

Signed-off-by: Prashant Sreedharan <prashant@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-25 15:56:21 -07:00
Julien D'Ascenzio d26e0da783 hwmon: (gpio-fan) Change name used in hwmon_device_register_with_groups
Since commit 648cd48c9e
The hwmon name attributes must not include '-' so the name must be
rename from gpio-fan to gpio_fan

Signed-off-by: Julien D'Ascenzio <jdascenzio@yahoo.fr>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-06-25 15:16:09 -07:00
Linus Torvalds 456febd299 ARM: SoC fixes for 3.16
A new set of bug fixes for 3.16, containing patches for seven platforms:
 
 at91:
     - drivers/misc fix for Kconfig PWM symbol
     - correction of several values in DT after conversion to CCF
     - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc
 
 imx:
     - Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
       because controller base CD/WP is not working in esdhc driver due to
       runtime PM support
     - A couple of random ventana gw5xxx board fixes
     - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
       IPUv3 driver out of staging tree
     - Fix enet/fec clock selection on imx6sl
     - Fix display node on imx53-m53evk board
     - A couple of Cubox-i updates from Russell, which were omitted from
       the merge window due to dependency
 
 integrator:
     - fix an OF-related regression against 3.15
 
 mvebu:
     - mvebu (v7)
        - Fix broken SoC ID detection
        - Select ARM_CPU_SUSPEND for v7
        - Remove armada38x compatible string (no users yet)
        - Enable Dove SoC in mvebu_v7_defconfig
     - kirkwood
        - Fix phy-connection-type on GuruPlug board
 
 qcom:
     - enable gsbi driver in defconfig
     - fix section mismatch warning in serial driver
 
 samsung:
     - use WFI macro in platform_do_lowpower because exynos cpuhotplug
       includes a hardcoded WFI instruction and it causes compile error
       in Thumb-2 mode.
     - fix GIC reg sizes for exynos4 SoCs
     - remove reset timer counter value during boot and resume for mct
       to fix a big jump in printk timestamps
     - fix pm code to check cortex-A9 for another exynos SoCs
     - don't rely on firmware's secondary_cpu_start for mcpm
 
 sti:
     - Ethernet clocks were wrongly defined for STiH415/416 platforms
     - STiH416 B2020 revision E DTS file name contained uppercase, change to
       lowercase.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "A new set of bug fixes for 3.16, containing patches for seven
  platforms:

  at91:
    - drivers/misc fix for Kconfig PWM symbol
    - correction of several values in DT after conversion to CCF
    - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc

  imx:
    - Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51,
      because controller base CD/WP is not working in esdhc driver due to
      runtime PM support
    - A couple of random ventana gw5xxx board fixes
    - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving
      IPUv3 driver out of staging tree
    - Fix enet/fec clock selection on imx6sl
    - Fix display node on imx53-m53evk board
    - A couple of Cubox-i updates from Russell, which were omitted from
      the merge window due to dependency

  integrator:
    - fix an OF-related regression against 3.15

  mvebu:
    - mvebu (v7)
       - Fix broken SoC ID detection
       - Select ARM_CPU_SUSPEND for v7
       - Remove armada38x compatible string (no users yet)
       - Enable Dove SoC in mvebu_v7_defconfig
    - kirkwood
       - Fix phy-connection-type on GuruPlug board

  qcom:
    - enable gsbi driver in defconfig
    - fix section mismatch warning in serial driver

  samsung:
    - use WFI macro in platform_do_lowpower because exynos cpuhotplug
      includes a hardcoded WFI instruction and it causes compile error
      in Thumb-2 mode.
    - fix GIC reg sizes for exynos4 SoCs
    - remove reset timer counter value during boot and resume for mct
      to fix a big jump in printk timestamps
    - fix pm code to check cortex-A9 for another exynos SoCs
    - don't rely on firmware's secondary_cpu_start for mcpm

  sti:
    - Ethernet clocks were wrongly defined for STiH415/416 platforms
    - STiH416 B2020 revision E DTS file name contained uppercase, change to
      lowercase"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (33 commits)
  ARM: at91/dt: sam9261: remove slow RC osc
  ARM: at91/dt: define sam9261ek slow crystal frequency
  ARM: at91/dt: sam9261: correctly define mainck
  ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values
  ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values
  misc: atmel_pwm: fix Kconfig symbols
  ARM: integrator: fix OF-related regression
  ARM: mvebu: Fix the improper use of the compatible string armada38x using a wildcard
  ARM: dts: kirkwood: fix phy-connection-type for Guruplug
  ARM: EXYNOS: Don't rely on firmware's secondary_cpu_start for mcpm
  ARM: dts: imx51-eukrea-mbimxsd51-baseboard: unbreak esdhc.
  ARM: dts: imx51-babbage: Fix esdhc setup
  ARM: dts: mx5: Move the display out of soc {} node
  ARM: dts: mx5: Fix IPU port node placement
  ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
  ARM: mvebu: Fix broken SoC ID detection
  ARM: imx_v6_v7_defconfig: Enable CONFIG_IMX_IPUV3_CORE
  ARM: multi_v7_defconfig: Add QCOM GSBI driver
  ARM: stih41x: Rename stih416-b2020-revE.dts to stih416-b2020e.dts
  tty: serial: msm: Fix section mismatch warning
  ...
2014-06-25 12:19:01 -07:00
Arnd Bergmann 6c9d161788 First AT91 fixes batch for 3.16:
- drivers/misc fix for Kconfig PWM symbol
 - correction of several values in DT after conversion to CCF
 - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes

Merge "First AT91 fixes batch for 3.16" from Nicolas Ferre:

- drivers/misc fix for Kconfig PWM symbol
- correction of several values in DT after conversion to CCF
- fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91/dt: sam9261: remove slow RC osc
  ARM: at91/dt: define sam9261ek slow crystal frequency
  ARM: at91/dt: sam9261: correctly define mainck
  ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values
  ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values
  misc: atmel_pwm: fix Kconfig symbols
2014-06-25 20:27:15 +02:00
Arnd Bergmann 6d12e79698 mvebu fixes for v3.16
- mvebu
     - Fix broken SoC ID detection
     - Select ARM_CPU_SUSPEND for v7
     - Remove armada38x compatible string (no users yet)
 
  - kirkwood
     - Fix phy-connection-type on GuruPlug board
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Merge tag 'mvebu-fixes-3.16' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu fixes for v3.16" from Jason Cooper:

 - mvebu
    - Fix broken SoC ID detection
    - Select ARM_CPU_SUSPEND for v7
    - Remove armada38x compatible string (no users yet)

 - kirkwood
    - Fix phy-connection-type on GuruPlug board

* tag 'mvebu-fixes-3.16' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: Fix the improper use of the compatible string armada38x using a wildcard
  ARM: dts: kirkwood: fix phy-connection-type for Guruplug
  ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
  ARM: mvebu: Fix broken SoC ID detection
2014-06-25 20:26:30 +02:00
Linus Torvalds 15e52d9a81 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fix from Sage Weil:
 "This fixes a corner case for cloned RBD images"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: handle parent_overlap on writes correctly
2014-06-25 10:34:17 -07:00
Alexandre Belloni 971dc9ce10 ARM: at91/dt: sam9261: remove slow RC osc
The at91sam9261 doesn't actually have a slow RC oscillator, remove it from the
dtsi.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-25 18:00:17 +02:00
Alexandre Belloni 78ca2ec920 ARM: at91/dt: define sam9261ek slow crystal frequency
Define at91sam9261ek's slow crystal frequencies.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-25 17:50:08 +02:00