Commit Graph

468543 Commits

Author SHA1 Message Date
Weston Andros Adamson bc8a309e88 nfs: fix nonblocking calls to nfs_page_group_lock
nfs_page_group_lock was calling wait_on_bit_lock even when told not to
block. Fix by first trying test_and_set_bit, followed by wait_on_bit_lock
if and only if blocking is allowed.  Return -EAGAIN if nonblocking and the
test_and_set of the bit was already locked.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:42 -04:00
Weston Andros Adamson fd2f3a06d3 nfs: change nfs_page_group_lock argument
Flip the meaning of the second argument from 'wait' to 'nonblock' to
match related functions. Update all five calls to reflect this change.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Reviewed-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-22 18:04:42 -04:00
Linus Torvalds 451fd72219 pwm: Fixes for v3.17-rc2
Just one bugfix for the PWM lookup table code that would cause a PWM
 channel to be set to the wrong period and polarity for non-perfect
 matches.
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Merge tag 'pwm/for-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fix from Thierry Reding:
 "Just one bugfix for the PWM lookup table code that would cause a PWM
  channel to be set to the wrong period and polarity for non-perfect
  matches"

* tag 'pwm/for-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: Fix period and polarity in pwm_get() for non-perfect matches
2014-08-22 14:50:21 -07:00
Michal Kazior 47e4df94d1 mac80211: fix channel switch for chanctx-based drivers
The new_ctx pointer is set only for non-chanctx drivers.  This yielded a
crash for chanctx-based drivers during channel switch finalization:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
  IP: ieee80211_vif_use_reserved_switch+0x71c/0xb00 [mac80211]

Use an adequate chanctx pointer to fix this.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-22 14:45:49 -07:00
Linus Torvalds 433ab34d26 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Here are some bug fixes that have piled up during ksummit/linuxcon.

   1) Fix endian problems in ibmveth, from Anton Blanchard.

   2) IPV6 routing code does GFP_KERNEL allocation in atomic, fix from
      Benjamin Block.

   3) SCTP association fixes from Daniel Borkmann.

   4) When multiple VLAN headers are present we have to make sure the
      second and subsequent ones are pullable in the SKB otherwise we
      blindly dereference garbage.  From Jiri Benc.

   5) The argument adjustment of the signature of hlist_add_after*()
      introduced a regression in the batman-adv code, fix from Sven
      Eckelmann.

   6) Fix TX hang handling to avoid a panic in i40e, from Anjali Singhai
      Jain.

   7) PTP flag test is inverted in i40e driver, from Jesse Brandeburg.

   8) ATM LEC driver needs to hold RTNL mutex over MTU changes, from
      Chas Williams.

   9) Truncate packets larger then the TPACKET_V3 format configured
      buffers, otherwise we overwrite past the end of said buffers.
      From Eric Dumazet.

  10) Fix endianness bugs in qlcnic firmware handling, from Rajesh
      Borundia and Shahed Shaikh.

  11) CXGB4 sometimes doesn't get all of the TX completion events it
      should resulting in SKBs getting stuck in the TX queue, from
      Hariprasad Shenai.

  12) When the FEC chip's PTP clock is disabled, you can't access the
      register.  Add necessary checks to avoid the resulting hang, from
      Fugang Duan"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (37 commits)
  drivers: isdn: eicon: xdi_msg.h: Fix typo in #ifndef
  net: sctp: fix suboptimal edge-case on non-active active/retrans path selection
  net: sctp: spare unnecessary comparison in sctp_trans_elect_best
  net: ethernet: broadcom: bnx2x: Remove redundant #ifdef
  ibmveth: Fix endian issues with rx_no_buffer statistic
  net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings()
  openvswitch: fix panic with multiple vlan headers
  net: ipv6: fib: don't sleep inside atomic lock
  net: fec: ptp: avoid register access when ipg clock is disabled
  cxgb4: Free completed tx skbs promptly
  cxgb4: Fix race condition in cleanup
  sctp: not send SCTP_PEER_ADDR_CHANGE notifications with failed probe
  bnx2x: Revert UNDI flushing mechanism
  qlcnic: Fix endianess issue in firmware load from file operation
  qlcnic: Fix endianess issue in FW dump template header
  qlcnic: Fix flash access interface to application
  MAINTAINERS: Add section for MRF24J40 IEEE 802.15.4 radio driver
  macvlan: Allow setting multicast filter on all macvlan types
  packet: handle too big packets for PACKET_V3
  MAINTAINERS: add entry for ec_bhf driver
  ...
2014-08-22 14:33:18 -07:00
Steven Rostedt (Red Hat) bce0b6c51a ftrace: Fix up trampoline accounting with looping on hash ops
Now that a ftrace_hash can be shared by multiple ftrace_ops, they can dec
the rec->flags by more than once (one per those that share the ftrace_hash).
This means that the tramp_hash may not have a hash item when it was added.

For example, if two ftrace_ops share a hash for a ftrace record, and the
first ops has a trampoline, when it adds itself it will set the rec->flags
TRAMP flag and increments its nr_trampolines counter. When the second ops
is added, it must clear that tramp flag but also decrement the other ops
that shares its hash. As the update to the function callbacks has not yet
been performed, the other ops will not have the tramp hash set yet and it
can not be used to know to decrement its nr_trampolines.

Luckily, the tramp_hash does not need to be used. As the ftrace_mutex is
held, a ops with a trampoline to a record during an update of another ops
that shares the record will have its func_hash pointing to it. Since a
trampoline can only be set for a record if only one ops is attached to it,
we can just check if the record has a trampoline (the FTRACE_FL_TRAMP flag
is set) and then find the ops that has this record in its hashes.

Also added some output to help debug when things go wrong.

Cc: stable@vger.kernel.org # 3.16+ (apply after 3.17-rc4 is out)
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-08-22 15:24:12 -04:00
Rasmus Villemoes faaa55241f drivers: isdn: eicon: xdi_msg.h: Fix typo in #ifndef
Test for definedness of the macro which is actually defined (the
change is hard to see: it is s/SSS/SSA/).

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:31:30 -07:00
Daniel Borkmann aa4a83ee8b net: sctp: fix suboptimal edge-case on non-active active/retrans path selection
In SCTP, selection of active (T.ACT) and retransmission (T.RET)
transports is being done whenever transport control operations
(UP, DOWN, PF, ...) are engaged through sctp_assoc_control_transport().

Commits 4c47af4d5e ("net: sctp: rework multihoming retransmission
path selection to rfc4960") and a7288c4dd5 ("net: sctp: improve
sctp_select_active_and_retran_path selection") have both improved
it towards a more fine-grained and optimal path selection.

Currently, the selection algorithm for T.ACT and T.RET is as follows:

1) Elect the two most recently used ACTIVE transports T1, T2 for
   T.ACT, T.RET, where T.ACT<-T1 and T1 is most recently used
2) In case primary path T.PRI not in {T1, T2} but ACTIVE, set
   T.ACT<-T.PRI and T.RET<-T1
3) If only T1 is ACTIVE from the set, set T.ACT<-T1 and T.RET<-T1
4) If none is ACTIVE, set T.ACT<-best(T.PRI, T.RET, T3) where
   T3 is the most recently used (if avail) in PF, set T.RET<-T.PRI

Prior to above commits, 4) was simply a camp on T.ACT<-T.PRI and
T.RET<-T.PRI, ignoring possible paths in PF. Camping on T.PRI is
still slightly suboptimal as it can lead to the following scenario:

Setup:
        <A>                                <B>
    T1: p1p1 (10.0.10.10) <==>  .'`)  <==> p1p1 (10.0.10.12)  <= T.PRI
    T2: p1p2 (10.0.10.20) <==> (_ . ) <==> p1p2 (10.0.10.22)

    net.sctp.rto_min = 1000
    net.sctp.path_max_retrans = 2
    net.sctp.pf_retrans = 0
    net.sctp.hb_interval = 1000

T.PRI is permanently down, T2 is put briefly into PF state (e.g. due to
link flapping). Here, the first time transmission is sent over PF path
T2 as it's the only non-INACTIVE path, but the retransmitted data-chunks
are sent over the INACTIVE path T1 (T.PRI), which is not good.

After the patch, it's choosing better transports in both cases by
modifying step 4):

4) If none is ACTIVE, set T.ACT_new<-best(T.ACT_old, T3) where T3 is
   the most recently used (if avail) in PF, set T.RET<-T.ACT_new

This will still select a best possible path in PF if available (which
can also include T.PRI/T.RET), and set both T.ACT/T.RET to it.

In case sctp_assoc_control_transport() *just* put T.ACT_old into INACTIVE
as it transitioned from ACTIVE->PF->INACTIVE and stays in INACTIVE just
for a very short while before going back ACTIVE, it will guarantee that
this path will be reselected for T.ACT/T.RET since T3 (PF) is not
available.

Previously, this was not possible, as we would only select between T.PRI
and T.RET, and a possible T3 would be NULL due to the fact that we have
just transitioned T3 in sctp_assoc_control_transport() from PF->INACTIVE
and would select a suboptimal path when T.PRI/T.RET have worse properties.

In the case that T.ACT_old permanently went to INACTIVE during this
transition and there's no PF path available, plus T.PRI and T.RET are
INACTIVE as well, we would now camp on T.ACT_old, but if everything is
being INACTIVE there's really not much we can do except hoping for a
successful HB to bring one of the transports back up again and, thus
cause a new selection through sctp_assoc_control_transport().

Now both tests work fine:

Case 1:

 1. T1 S(ACTIVE) T.ACT
    T2 S(ACTIVE) T.RET

 2. T1 S(ACTIVE) T.ACT, T.RET
    T2 S(PF)

 3. T1 S(ACTIVE) T.ACT, T.RET
    T2 S(INACTIVE)

 5. T1 S(PF) T.ACT, T.RET
    T2 S(INACTIVE)

[ 5.1 T1 S(INACTIVE) T.ACT, T.RET
      T2 S(INACTIVE) ]

 6. T1 S(ACTIVE) T.ACT, T.RET
    T2 S(INACTIVE)

 7. T1 S(ACTIVE) T.ACT
    T2 S(ACTIVE) T.RET

Case 2:

 1. T1 S(ACTIVE) T.ACT
    T2 S(ACTIVE) T.RET

 2. T1 S(PF)
    T2 S(ACTIVE) T.ACT, T.RET

 3. T1 S(INACTIVE)
    T2 S(ACTIVE) T.ACT, T.RET

 5. T1 S(INACTIVE)
    T2 S(PF) T.ACT, T.RET

[ 5.1 T1 S(INACTIVE)
      T2 S(INACTIVE) T.ACT, T.RET ]

 6. T1 S(INACTIVE)
    T2 S(ACTIVE) T.ACT, T.RET

 7. T1 S(ACTIVE) T.ACT
    T2 S(ACTIVE) T.RET

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:31:30 -07:00
Daniel Borkmann ea4f19c1f8 net: sctp: spare unnecessary comparison in sctp_trans_elect_best
When both transports are the same, we don't have to go down that
road only to realize that we will return the very same transport.
We are guaranteed that curr is always non-NULL. Therefore, just
short-circuit this special case.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:31:30 -07:00
Rasmus Villemoes 7d149c5268 net: ethernet: broadcom: bnx2x: Remove redundant #ifdef
Nothing defines _ASM_GENERIC_INT_L64_H, it is a weird way to check for
64 bit longs, and u64 should be printed using %llx anyway.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:29:58 -07:00
Anton Blanchard cbd5228199 ibmveth: Fix endian issues with rx_no_buffer statistic
Hidden away in the last 8 bytes of the buffer_list page is a solitary
statistic. It needs to be byte swapped or else ethtool -S will
produce numbers that terrify the user.

Since we do this in multiple places, create a helper function with a
comment explaining what is going on.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:28:00 -07:00
Iyappan Subramanian c10e4cafa2 net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings()
A NULL pointer dereference is possible for the argument ring->buf_pool
which is passed to xgene_enet_free_desc_ring(), as ring could be NULL.

And now since NULL pointers are being checked for before the calls to
xgene_enet_free_desc_ring(), might as well take advantage of them and
not call the function if the argument would be NULL.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:25:25 -07:00
Jiri Benc 2ba5af42a7 openvswitch: fix panic with multiple vlan headers
When there are multiple vlan headers present in a received frame, the first
one is put into vlan_tci and protocol is set to ETH_P_8021Q. Anything in the
skb beyond the VLAN TPID may be still non-linear, including the inner TCI
and ethertype. While ovs_flow_extract takes care of IP and IPv6 headers, it
does nothing with ETH_P_8021Q. Later, if OVS_ACTION_ATTR_POP_VLAN is
executed, __pop_vlan_tci pulls the next vlan header into vlan_tci.

This leads to two things:

1. Part of the resulting ethernet header is in the non-linear part of the
   skb. When eth_type_trans is called later as the result of
   OVS_ACTION_ATTR_OUTPUT, kernel BUGs in __skb_pull. Also, __pop_vlan_tci
   is in fact accessing random data when it reads past the TPID.

2. network_header points into the ethernet header instead of behind it.
   mac_len is set to a wrong value (10), too.

Reported-by: Yulong Pei <ypei@redhat.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 11:24:04 -07:00
Benjamin Block 793c3b4000 net: ipv6: fib: don't sleep inside atomic lock
The function fib6_commit_metrics() allocates a piece of memory in mode
GFP_KERNEL while holding an atomic lock from higher up in the stack, in
the function __ip6_ins_rt(). This produces the following BUG:

> BUG: sleeping function called from invalid context at mm/slub.c:1250
> in_atomic(): 1, irqs_disabled(): 0, pid: 2909, name: dhcpcd
> 2 locks held by dhcpcd/2909:
>  #0:  (rtnl_mutex){+.+.+.}, at: [<ffffffff81978e67>] rtnl_lock+0x17/0x20
>  #1:  (&tb->tb6_lock){++--+.}, at: [<ffffffff81a6951a>] ip6_route_add+0x65a/0x800
> CPU: 1 PID: 2909 Comm: dhcpcd Not tainted 3.17.0-rc1 #1
> Hardware name: ASUS All Series/Q87T, BIOS 0216 10/16/2013
>  0000000000000008 ffff8800c8f13858 ffffffff81af135a 0000000000000000
>  ffff880212202430 ffff8800c8f13878 ffffffff810f8d3a ffff880212202c98
>  0000000000000010 ffff8800c8f138c8 ffffffff8121ad0e 0000000000000001
> Call Trace:
>  [<ffffffff81af135a>] dump_stack+0x4e/0x68
>  [<ffffffff810f8d3a>] __might_sleep+0x10a/0x120
>  [<ffffffff8121ad0e>] kmem_cache_alloc_trace+0x4e/0x190
>  [<ffffffff81a6bcd6>] ? fib6_commit_metrics+0x66/0x110
>  [<ffffffff81a6bcd6>] fib6_commit_metrics+0x66/0x110
>  [<ffffffff81a6cbf3>] fib6_add+0x883/0xa80
>  [<ffffffff81a6951a>] ? ip6_route_add+0x65a/0x800
>  [<ffffffff81a69535>] ip6_route_add+0x675/0x800
>  [<ffffffff81a68f2a>] ? ip6_route_add+0x6a/0x800
>  [<ffffffff81a6990c>] inet6_rtm_newroute+0x5c/0x80
>  [<ffffffff8197cf01>] rtnetlink_rcv_msg+0x211/0x260
>  [<ffffffff81978e67>] ? rtnl_lock+0x17/0x20
>  [<ffffffff81119708>] ? lock_release_holdtime+0x28/0x180
>  [<ffffffff81978e67>] ? rtnl_lock+0x17/0x20
>  [<ffffffff8197ccf0>] ? __rtnl_unlock+0x20/0x20
>  [<ffffffff819a989e>] netlink_rcv_skb+0x6e/0xd0
>  [<ffffffff81978ee5>] rtnetlink_rcv+0x25/0x40
>  [<ffffffff819a8e59>] netlink_unicast+0xd9/0x180
>  [<ffffffff819a9600>] netlink_sendmsg+0x700/0x770
>  [<ffffffff81103735>] ? local_clock+0x25/0x30
>  [<ffffffff8194e83c>] sock_sendmsg+0x6c/0x90
>  [<ffffffff811f98e3>] ? might_fault+0xa3/0xb0
>  [<ffffffff8195ca6d>] ? verify_iovec+0x7d/0xf0
>  [<ffffffff8194ec3e>] ___sys_sendmsg+0x37e/0x3b0
>  [<ffffffff8111ef15>] ? trace_hardirqs_on_caller+0x185/0x220
>  [<ffffffff81af979e>] ? mutex_unlock+0xe/0x10
>  [<ffffffff819a55ec>] ? netlink_insert+0xbc/0xe0
>  [<ffffffff819a65e5>] ? netlink_autobind.isra.30+0x125/0x150
>  [<ffffffff819a6520>] ? netlink_autobind.isra.30+0x60/0x150
>  [<ffffffff819a84f9>] ? netlink_bind+0x159/0x230
>  [<ffffffff811f989a>] ? might_fault+0x5a/0xb0
>  [<ffffffff8194f25e>] ? SYSC_bind+0x7e/0xd0
>  [<ffffffff8194f8cd>] __sys_sendmsg+0x4d/0x80
>  [<ffffffff8194f912>] SyS_sendmsg+0x12/0x20
>  [<ffffffff81afc692>] system_call_fastpath+0x16/0x1b

Fixing this by replacing the mode GFP_KERNEL with GFP_ATOMIC.

Signed-off-by: Benjamin Block <bebl@mageta.org>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 10:54:49 -07:00
Nimrod Andy 91c0d987a9 net: fec: ptp: avoid register access when ipg clock is disabled
The current kernel hang on i.MX6SX with rootfs mount from MMC.
The root cause is that ptp uses a periodic timer to access enet register
even if ipg clock is disabled.

FEC ptp driver start one period timer to read 1588 counter register in the
ptp init function that is called after FEC driver is probed.

To save power, after FEC probe finish, FEC driver disable all clocks including
ipg clock that is needed for register access.

i.MX5x, i.MX6q/dl/sl FEC register access don't cause system hang when ipg clock
is disabled, just return zero value. But for i.MX6sx SOC, it cause system hang.

To avoid the issue, we need to check ptp clock status before ptp timer count access.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-22 10:45:56 -07:00
Steven Rostedt (Red Hat) 84261912eb ftrace: Update all ftrace_ops for a ftrace_hash_ops update
When updating what an ftrace_ops traces, if it is registered (that is,
actively tracing), and that ftrace_ops uses the shared global_ops
local_hash, then we need to update all tracers that are active and
also share the global_ops' ftrace_hash_ops.

Cc: stable@vger.kernel.org # 3.16 (apply after 3.17-rc4 is out)
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-08-22 13:21:14 -04:00
Steven Rostedt (Red Hat) 33b7f99cf0 ftrace: Allow ftrace_ops to use the hashes from other ops
Currently the top level debug file system function tracer shares its
ftrace_ops with the function graph tracer. This was thought to be fine
because the tracers are not used together, as one can only enable
function or function_graph tracer in the current_tracer file.

But that assumption proved to be incorrect. The function profiler
can use the function graph tracer when function tracing is enabled.
Since all function graph users uses the function tracing ftrace_ops
this causes a conflict and when a user enables both function profiling
as well as the function tracer it will crash ftrace and disable it.

The quick solution so far is to move them as separate ftrace_ops like
it was earlier. The problem though is to synchronize the functions that
are traced because both function and function_graph tracer are limited
by the selections made in the set_ftrace_filter and set_ftrace_notrace
files.

To handle this, a new structure is made called ftrace_ops_hash. This
structure will now hold the filter_hash and notrace_hash, and the
ftrace_ops will point to this structure. That will allow two ftrace_ops
to share the same hashes.

Since most ftrace_ops do not share the hashes, and to keep allocation
simple, the ftrace_ops structure will include both a pointer to the
ftrace_ops_hash called func_hash, as well as the structure itself,
called local_hash. When the ops are registered, the func_hash pointer
will be initialized to point to the local_hash within the ftrace_ops
structure. Some of the ftrace internal ftrace_ops will be initialized
statically. This will allow for the function and function_graph tracer
to have separate ops but still share the same hash tables that determine
what functions they trace.

Cc: stable@vger.kernel.org # 3.16 (apply after 3.17-rc4 is out)
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-08-22 13:18:48 -04:00
Linus Torvalds 26d189b82f arm64 fixes for merge window fallout
This small set of fixes addresses a few issues introduced during the
 merge window, including:
 
   - Fix typo in I-cache detection that was causing us to treat all
     I-caches as aliasing
   - Hook up memfd_create and getrandom syscalls for native and compat
   - Revert a temporary hack for defconfig builds in -next (the audit
     tree changes didn't make it in this merge window)
   - A couple of UEFI fixes for TEXT_OFFSET fuzzing and /memreserve/
   - A simple sparsemem fix for 48-bit physical addressing
   - Small defconfig updates to get autotesters working with X-gene
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "This small set of fixes addresses a few issues introduced during the
  merge window, including:

   - fix typo in I-cache detection that was causing us to treat all
     I-caches as aliasing
   - hook up memfd_create and getrandom syscalls for native and compat
   - revert a temporary hack for defconfig builds in -next (the audit
     tree changes didn't make it in this merge window)
   - a couple of UEFI fixes for TEXT_OFFSET fuzzing and /memreserve/
   - a simple sparsemem fix for 48-bit physical addressing
   - small defconfig updates to get autotesters working with X-gene"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  Revert "arm64: Do not invoke audit_syscall_* functions if !CONFIG_AUDIT_SYSCALL"
  arm64: mm: update max pa bits to 48
  arm64: ignore DT memreserve entries when booting in UEFI mode
  arm64: configs: Enable X-Gene SATA and ethernet in defconfig
  arm64: align randomized TEXT_OFFSET on 4 kB boundary
  asm-generic: add memfd_create system call to unistd.h
  arm64: compat: wire up memfd_create and getrandom syscalls for aarch32
  arm64: fix typo in I-cache policy detection
2014-08-22 09:08:20 -07:00
Linus Torvalds 1ae45cf06c IOMMU Fixes for Linux v3.17-rc1
The fixes include:
 
 	* A patch to fix a crash in the VT-d driver when devices with a
 	  driver attached are hot-unplugged
 
 	* A patch for the AMD IOMMU driver to fix a crash with device
 	  assignment of 32 bit PCI devices to KVM guests
 
 	* Fix for a copy&paste error in generic IOMMU code. Now the
 	  right function pointer is checked before calling.
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Merge tag 'iommu-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "The fixes include:

   - fix a crash in the VT-d driver when devices with a driver attached
     are hot-unplugged

   - fix a AMD IOMMU driver crash with device assignment of 32 bit PCI
     devices to KVM guests

   - fix for a copy&paste error in generic IOMMU code.  Now the right
     function pointer is checked before calling"

* tag 'iommu-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/core: Check for the right function pointer in iommu_map()
  iommu/amd: Fix cleanup_domain for mass device removal
  iommu/vt-d: Defer domain removal if device is assigned to a driver
2014-08-22 09:06:22 -07:00
Alex Deucher 37dbeab788 drm/radeon: add additional SI pci ids
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-08-22 10:47:59 -04:00
Alex Deucher 5fc540edc8 drm/radeon: add new bonaire pci ids
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-08-22 10:47:59 -04:00
Alex Deucher 6dc14baf4c drm/radeon: add new KV pci id
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=82912

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-08-22 10:47:58 -04:00
Ingo Molnar 80b304fd00 * WARN_ON(!spin_is_locked()) always triggers on non-SMP machines.
Swap it for the more canonical lockdep_assert_held() which always
    does the right thing - Guenter Roeck
 
  * Assign the correct value to efi.runtime_version on arm64 so that all
    the runtime services can be invoked - Semen Protsenko
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Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent

Pull EFI fixes from Matt Fleming:

 * WARN_ON(!spin_is_locked()) always triggers on non-SMP machines.
   Swap it for the more canonical lockdep_assert_held() which always
   does the right thing - Guenter Roeck

 * Assign the correct value to efi.runtime_version on arm64 so that all
   the runtime services can be invoked - Semen Protsenko

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-08-22 10:04:15 +02:00
Semen Protsenko 6a7519e813 efi/arm64: Store Runtime Services revision
"efi" global data structure contains "runtime_version" field which must
be assigned in order to use it later in Runtime Services virtual calls
(virt_efi_* functions).

Before this patch "runtime_version" was unassigned (0), so each
Runtime Service virtual call that checks revision would fail.

Signed-off-by: Semen Protsenko <semen.protsenko@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-08-22 08:45:41 +01:00
Guenter Roeck aee530cfec firmware: Do not use WARN_ON(!spin_is_locked())
spin_is_locked() always returns false for uniprocessor configurations
in several architectures, so do not use WARN_ON with it.
Use lockdep_assert_held() instead to also reduce overhead in
non-debug kernels.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-08-22 08:45:40 +01:00
Hariprasad Shenai 08f1a1b9d1 cxgb4: Free completed tx skbs promptly
Description of problem:
The NIC card is not reporting back to the driver the transmitted skbs,
so they get stuck in the TX ring causing issues with reference
counters in other kernel components.

Developed a new Automatic Egress Queue Update firmware facility to slowly tick
through Egress Queues and send back any outstanding CIDX Updates which are
laying around.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 21:54:52 -07:00
David S. Miller 215a004c61 linux-can-fixes-for-3.17-20140821
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Merge tag 'linux-can-fixes-for-3.17-20140821' of git://gitorious.org/linux-can/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2014-08-21

The first patch is from Mirza Krak, it fixes the initialization of the hardware
in the sja1000 driver. The next patch is contributed by Dan Carpenter, it fixes
the error handling in the c_can's probe function. Then there are two patches
for the flexcan driver, one by Alexander Stein, which fixes the resetting of
the bus error interrupt mask, the other one by Sebastian Andrzej Siewior which
adds an additional error state transition message.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 21:53:15 -07:00
Anish Bhatt 29aaee65bc cxgb4: Fix race condition in cleanup
There is a possible race condition when we unregister the PCI Driver and then
flush/destroy the global "workq". This could lead to situations where there
are tasks on the Work Queue with references to now deleted adapter data
structures. Instead, have per-adapter Work Queues which were instantiated and
torn down in init_one() and remove_one(), respectively.

v2: Remove unnecessary call to flush_workqueue() before destroy_workqueue()

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 21:45:36 -07:00
zhuyj 061079ac0b sctp: not send SCTP_PEER_ADDR_CHANGE notifications with failed probe
Since the transport has always been in state SCTP_UNCONFIRMED, it
therefore wasn't active before and hasn't been used before, and it
always has been, so it is unnecessary to bug the user with a
notification.

Reported-by: Deepak Khandelwal <khandelwal.deepak.1987@gmail.com>
Suggested-by: Vlad Yasevich <vyasevich@gmail.com>
Suggested-by: Michael Tuexen <tuexen@fh-muenster.de>
Suggested-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Zhu Yanjun <Yanjun.Zhu@windriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 21:33:17 -07:00
Geert Uytterhoeven 049d28048b sh: intc: Confine SH_INTC to platforms that need it
Currently the sh-intc driver is compiled on all SuperH and
non-multiplatform SH-Mobile platforms, while it's only used on a limited
number of platforms:
  - SuperH: SH2(A), SH3(A), SH4(A)(L) (all but SH5)
  - ARM: sh7372, sh73a0

Drop the "default y" on SH_INTC, make all CPU platforms that use it
select it, and protect all sub-options by "if SH_INTC" to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-08-22 12:28:16 +09:00
Yuval Mintz 7c3afd85dc bnx2x: Revert UNDI flushing mechanism
Commit 91ebb929b6 ("bnx2x: Add support for Multi-Function UNDI") [which was
later supposedly fixed by de682941ee ("bnx2x: Fix UNDI driver unload")]
introduced a bug in which in some [yet-to-be-determined] scenarios the
alternative flushing mechanism which was to guarantee the Rx buffers are
empty before resetting them during device probe will fail.
If this happens, when device will be loaded once more a fatal attention will
occur; Since this most likely happens in boot from SAN scenarios, the machine
will fail to load.

Notice this may occur not only in the 'Multi-Function' scenario but in the
regular scenario as well, i.e., this introduced a regression in the driver's
ability to perform boot from SAN.

The patch reverts the mechanism and applies the old scheme to multi-function
devices as well as to single-function devices.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:54:43 -07:00
David S. Miller 9a6d33c307 Merge branch 'qlcnic'
Shahed Shaikh says:

====================
qlcnic: Bug fixes

This series fixes some bugs related to endianess.

Please apply this series to net.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:43:20 -07:00
Shahed Shaikh 3d8623e600 qlcnic: Fix endianess issue in firmware load from file operation
Firmware binary file is in little endian. On big-endian architecture, while
writing this binary FW file to adapters memory, writel() swaps the data resulting into
corruption of FW image. So, swap the data before writing into adapters memory.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:43:15 -07:00
Rajesh Borundia d874df58ff qlcnic: Fix endianess issue in FW dump template header
Firmware dump template header is read from adapter using
readl() which swaps the data. So, adjust structure
element on the boundary of 32bit dword.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:43:15 -07:00
Jitendra Kalsaria 26acc71252 qlcnic: Fix flash access interface to application
Application expects flash data in little endian, but driver reads/writes
flash data using readl()/writel() APIs which swaps data on big endian machine.
So, swap the data after reading from and before writing to flash memory.

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:43:15 -07:00
Alan Ott d715569112 MAINTAINERS: Add section for MRF24J40 IEEE 802.15.4 radio driver
Alan is the original author of the driver. This change was discussed
with the 802.15.4 subsystem maintainer, Alexander Aring.

Signed-off-by: Alan Ott <alan@signal11.us>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 17:36:50 -07:00
Vlad Yasevich 8a50f11c3b macvlan: Allow setting multicast filter on all macvlan types
Currently, macvlan code restricts multicast and unicast
filter setting only to passthru devices.  As a result,
if a guest using macvtap wants to receive multicast
traffic, it has to set IFF_ALLMULTI or IFF_PROMISC.

This patch makes it possible to use the fdb interface
to add multicast addresses to the filter thus allowing
a guest to receive only targeted multicast traffic.

CC: John Fastabend <john.r.fastabend@intel.com>
CC: Michael S. Tsirkin <mst@redhat.com>
CC: Jason Wang <jasowang@redhat.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 16:54:25 -07:00
Eric Dumazet dc808110bb packet: handle too big packets for PACKET_V3
af_packet can currently overwrite kernel memory by out of bound
accesses, because it assumed a [new] block can always hold one frame.

This is not generally the case, even if most existing tools do it right.

This patch clamps too long frames as API permits, and issue a one time
error on syslog.

[  394.357639] tpacket_rcv: packet too big, clamped from 5042 to 3966. macoff=82

In this example, packet header tp_snaplen was set to 3966,
and tp_len was set to 5042 (skb->len)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: f6fb8f100b ("af-packet: TPACKET_V3 flexible buffer implementation.")
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 16:44:28 -07:00
Dariusz Marcinkiewicz 564ee3606f MAINTAINERS: add entry for ec_bhf driver
Added entry for ec_bhf driver.

Signed-off-by: Dariusz Marcinkiewicz <reksio@newterm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 16:39:34 -07:00
chas williams - CONTRACTOR 6df378d2d1 lec: Use rtnl lock/unlock when updating MTU
The LECS response contains the MTU that should be used.  Correctly
synchronize with other layers when updating.

Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-21 16:31:23 -07:00
Dave Airlie 20a984c2a5 Merge tag 'drm-intel-fixes-2014-08-21' of git://anongit.freedesktop.org/drm-intel
Display fixes from Ville and Imre, all cc: stable.

* tag 'drm-intel-fixes-2014-08-21' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: don't try to retrain a DP link on an inactive CRTC
  drm/i915: make sure VDD is turned off during system suspend
  drm/i915: cancel hotplug and dig_port work during suspend and unload
  drm/i915: fix HPD IRQ reenable work cancelation
  drm/i915: take display port power domain in DP HPD handler
  drm/i915: Don't try to enable cursor from setplane when crtc is disabled
  drm/i915: Skip load detect when intel_crtc->new_enable==true
  drm/i915: Fix locking for intel_enable_pipe_a()
2014-08-22 07:29:52 +10:00
Dave Airlie c3735aeb65 Merge branch 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux
more radeon fixes

* 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux:
  Revert "drm/radeon: Use write-combined CPU mappings of ring buffers with PCIe"
  drm/radeon: fix active_cu mask on SI and CIK after re-init (v3)
  drm/radeon: fix active cu count for SI and CIK
  drm/radeon: re-enable selective GPUVM flushing
  drm/radeon: Sync ME and PFP after CP semaphore waits v4
  drm/radeon: fix display handling in radeon_gpu_reset
  drm/radeon: fix pm handling in radeon_gpu_reset
  drm/radeon: Only flush HDP cache for indirect buffers from userspace
  drm/radeon: properly document reloc priority mask
2014-08-22 07:29:25 +10:00
Linus Torvalds 5317821c08 Merge branch 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "Nothing drastic but pushing out early due to build breakage in the new
  tegra platform.

  Additionally:

   - M550 tagged trim blacklist pattern is widened so that it matches
     the new 1TB model

   - three controller specific fixes"

* 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: widen Crucial M550 blacklist matching
  pata_scc: propagate return value of scc_wait_after_reset
  ata: ahci_tegra: Change include to fix compilation
  pata_samsung_cf: change ret type to signed
  ahci_xgene: Removing NCQ support from the APM X-Gene SoC AHCI SATA Host Controller driver.
2014-08-21 14:26:27 -07:00
Linus Torvalds cee5aa1f81 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:

 - fixes for a couple potential memory corruption problems (the HW would
   have to be manufactured to be deliberately evil to trigger those)
   found by Ben Hawkes
 - fix for potential infinite loop when using sysfs interface of
   logitech driver, from Simon Wood
 - a couple more simple driver fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: fix a couple of off-by-ones
  HID: logitech: perform bounds checking on device_id early enough
  HID: logitech: fix bounds checking on LED report size
  HID: logitech: Prevent possibility of infinite loop when using /sys interface
  HID: rmi: print an error if F11 is not found instead of stopping the device
  HID: hid-sensor-hub: use devm_ functions consistently
  HID: huion: Use allocated buffer for DMA
  HID: huion: Fail on parameter retrieval errors
2014-08-21 14:25:20 -07:00
Linus Torvalds e9d99a1dec sound fixes for 3.17-rc2
A bunch of ASoC fixes with a few HD-audio fixes in this pull request.
 All fairly small, boring and device-specific fixes, in addition to
 MAINTAINERS update for better reviewing.
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Merge tag 'sound-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A bunch of ASoC fixes with a few HD-audio fixes in this pull request.

  All fairly small, boring and device-specific fixes, in addition to
  MAINTAINERS update for better reviewing"

* tag 'sound-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/hdmi - apply Valleyview fix-ups to Cherryview display codec
  ALSA: hda/hdmi - set depop_delay for haswell plus
  ALSA: hda - restore the gpio led after resume
  ALSA: hda/realtek - Avoid setting wrong COEF on ALC269 & co
  ASoC: pxa-ssp: drop SNDRV_PCM_FMTBIT_S24_LE
  ASoC: fsl-esai: Revert .xlate_tdm_slot_mask() support
  ASoC: mcasp: Fix implicit BLCK divider setting
  ASoC: arizona: Fix TDM slot length handling in arizona_hw_params
  ASoC: pcm512x: Correct Digital Playback control names
  ASoC: dapm: Fix uninitialized variable in snd_soc_dapm_get_enum_double()
  ASoC: Intel: Restore Baytrail ADSP streams only when ADSP was in reset
  ASoC: Intel: Wait Baytrail ADSP boot at resume_early stage
  ASoC: Intel: Merge Baytrail ADSP suspend_noirq into suspend_late
  MAINTAINERS: Add i.MX maintainers and paths to Freescale ASoC entry
  ASoC: Intel: Update Baytrail ADSP firmware name
2014-08-21 14:24:40 -07:00
Linus Torvalds 29fdd5ba62 Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Here is the fixup for the 'lowlight' of my last pull request.  I2C is
  not selected anymore by I2C_ACPI.  Instead, the code in question now
  depends on I2C=y.

  Also, Mika has agreed to support me and be the maintainer for I2C-ACPI
  related patches.  Finally, a new-ID-patch came along last week"

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  MAINTAINERS: add maintainer for ACPI parts of I2C
  i2c: i801: Add PCI ID for Intel Braswell
  i2c: rework kernel config I2C_ACPI
2014-08-21 14:07:44 -07:00
Linus Torvalds d1433d55c7 Add memfd_create syscall to ia64
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Merge tag 'please-pull-memfd_create' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull ia64 update from Tony Luck:
 "Add memfd_create syscall to ia64"

* tag 'please-pull-memfd_create' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  [IA64] Wire up memfd_create() system call
2014-08-21 14:06:56 -07:00
Linus Torvalds f8d08a1bb4 Microblaze patches for 3.17-rc2
- Wire-up seccomp/getrandom/memfd_create syscalls
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Merge tag 'microblaze-3.17-rc2' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze update from Michal Simek:
 "Wire-up seccomp/getrandom/memfd_create syscalls"

* tag 'microblaze-3.17-rc2' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Wire-up memfd_create syscall
  microblaze: Wire-up getrandom syscall
  microblaze: Wire-up seccomp syscall
2014-08-21 14:06:18 -07:00
Jiri Kosina 4ab25786c8 HID: fix a couple of off-by-ones
There are a few very theoretical off-by-one bugs in report descriptor size
checking when performing a pre-parsing fixup. Fix those.

Cc: stable@vger.kernel.org
Reported-by: Ben Hawkes <hawkes@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-08-21 10:43:28 -05:00
Jiri Kosina ad3e14d7c5 HID: logitech: perform bounds checking on device_id early enough
device_index is a char type and the size of paired_dj_deivces is 7
elements, therefore proper bounds checking has to be applied to
device_index before it is used.

We are currently performing the bounds checking in
logi_dj_recv_add_djhid_device(), which is too late, as malicious device
could send REPORT_TYPE_NOTIF_DEVICE_UNPAIRED early enough and trigger the
problem in one of the report forwarding functions called from
logi_dj_raw_event().

Fix this by performing the check at the earliest possible ocasion in
logi_dj_raw_event().

Cc: stable@vger.kernel.org
Reported-by: Ben Hawkes <hawkes@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-08-21 10:43:06 -05:00