Andrew Lunn [Sat, 20 Jun 2015 19:31:29 +0000 (21:31 +0200)]
dsa: mv88x6xxx: Zero statistics counters
Zero the statistics counters when setting up the global
registers. Otherwise the counters will remain from the last boot if
the power has not been removed.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 23 Jun 2015 13:33:51 +0000 (06:33 -0700)]
Merge branch 'dsa-mv88e6xxx-debugfs'
Andrew Lunn says:
====================
debugfs for mv88e6xxx
This patchset adds some debugfs files for seeing into a mv88e6xxx
family of switch chips.
DB T/P Vec State Addr
003 Port 008 7 00:22:02:00:18:44
003 Port 008 6 80:ee:73:83:60:27
005 Port 020 7 94:10:3e:80:bc:f3
0f8 Port 001 6 8e:25:13:53:44:de
This walks all possible entries, so is a bit slow, but is always
correct.
Target Port
0 15
1 15
2 15
3 15
4 15
5 15
6 15
7 15
8 15
9 15
-->snip<--
31 15
A rather boring example, since i only have one switch here. But this shows
the routing between multiple switches.
GLOBAL GLOBAL2 0 1 2 3 4 5 6
0: c804 0 1e4f 100f 100f 1e4f 1e0f e07 e07
1: fe 0 3 3 3 3 3 c03e c03f
2: 0 ffff 0 0 0 0 0 0 0
3: 0 ffff 1721 1721 1721 1721 1721 1721 1721
4: 6000 258 433 431 431 433 433 373f 433
5: 0 ff 0 0 0 0 0 0 0
6: c000 1f0f 2026 2025 2023 3020 4020 501f 6020
7: 0 707f 0 0 0 0 0 0 0
8: 0 7800 2080 2080 2080 2080 2080 2080 2080
9: 0 1600 1 1 1 1 1 1 1
a: 148 0 0 0 0 0 0 0 0
b: 4000 1000 1 2 4 8 10 20 40
c: 0 7f 0 0 0 0 0 0 0
d: ffff 5f3 0 0 0 0 0 0 0
e: ffff 6 0 0 0 0 0 0 0
f: ffff f00 dada dada dada dada dada dada dada
10: 0 0 0 0 0 0 0 0 0
11: 0 0 0 0 0 0 0 0 0
12: 5555 0 0 0 0 0 0 0 0
13: 5555 0 1a 0 0 1df0 0 1e07 0
14: aaaa 400 0 0 0 0 0 0 0
15: aaaa 0 0 0 0 0 0 0 0
16: ffff 0 6011 6011 6011 6011 33 33 0
17: ffff 0 0 0 0 0 0 0 0
18: fa41 1844 3210 3210 3210 3210 3210 3210 3210
19: 0 1e1 7654 7654 7654 7654 7654 7654 7654
1a: 5550 0 0 0 0 0 0 0 0
1b: 1fb f869 8000 8000 8000 8000 8000 8000 8000
1c: 0 0 0 0 0 0 0 0 0
1d: c00 0 0 0 0 0 0 0 0
1e: 0 0 0 0 0 0 0 0 0
1f: 0 0 0 0 0 0 0 0 0
All the switch registers which are directly accessible.
Statistic Port 0 Port 1 Port 2 Port 3 Port 4 Port 5 Port 6
in_good_octets: 2176 0 0
4263711 0 499540 0
in_bad_octets: 46050 0 0 50196 0 0 0
in_unicast: 0 0 0 7693 0 7691 0
in_broadcasts: 0 0 0 0 0 3 0
in_multicasts: 34 0 0 0 0 27 0
in_pause: 0 0 0 0 0 0 0
in_undersize: 0 0 0 0 0 0 0
in_fragments: 45 0 0 2 0 0 0
in_oversize: 0 0 0 0 0 0 0
in_jabber: 0 0 0 0 0 0 0
in_rx_error: 0 0 0 0 0 0 0
in_fcs_error: 159 0 0 37 0 0 0
out_octets: 808 0 0 496608 336
4267159 0
out_unicast: 0 0 0 7691 0 7693 0
out_broadcasts: 1 0 0 3 0 0 0
out_multicasts: 9 0 0 6 4 34 0
out_pause: 0 0 0 0 0 0 0
excessive: 0 0 0 0 0 0 0
collisions: 0 0 0 0 0 0 0
deferred: 0 0 0 0 0 0 0
single: 0 0 0 0 0 0 0
multiple: 0 0 0 0 0 0 0
out_fcs_error: 0 0 0 0 0 0 0
late: 0 0 0 0 0 0 0
hist_64bytes: 36 0 0 7577 0 7574 0
hist_65_127bytes: 53 0 0 241 4 298 0
hist_128_255bytes: 50 0 0 12 0 10 0
hist_256_511bytes: 43 0 0 8 0 2 0
hist_512_1023bytes: 18 0 0 7573 0 7564 0
hist_1024_max_bytes: 3 0 0 19 0 0 0
sw_in_discards: 0 0 0 0 0 0 0
sw_in_filtered: 0 0 0 0 0 0 0
sw_out_filtered: 34 0 0 7693 0 7721 0
Of particular interest here is that you get to see all ports,
including the CPU port and any DSA ports. You cannot get statistics
for these ports via ethtool.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 20 Jun 2015 16:42:33 +0000 (18:42 +0200)]
dsa: mv88x6xxx: Add debugfs interface for scratch registers
Allow the contents of the scratch registers to be shown in debugfs.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 20 Jun 2015 16:42:32 +0000 (18:42 +0200)]
dsa: mv88x6xxx: Add debugfs interface for device map
The device map is used to route packets between cascaded switches.
Add dumping a switches device map via debugfs.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 20 Jun 2015 16:42:31 +0000 (18:42 +0200)]
dsa: mv88x6xxx: Add debugfs interface for statistics
Allow the contents of the statistics counters to be shown in debugfs.
This is particularly useful for the cpu and dsa ports, which cannot be
seen using ethtools -S.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 20 Jun 2015 16:42:30 +0000 (18:42 +0200)]
dsa: mv88x6xxx: Refactor getting a single statistic
Move the code to retrieve a statistics counter into a function of its
own, so it can later be reused.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 20 Jun 2015 16:42:29 +0000 (18:42 +0200)]
dsa: mv88e6xxx: Add debugfs interface for ATU
Dump the Address Translation Unit via a file in debugfs.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 20 Jun 2015 16:42:28 +0000 (18:42 +0200)]
dsa: mv88e6xxx: Add debugfs interface for registers
Allow the contents of the registers to be shown in debugfs.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shreyas Bhatewara [Fri, 19 Jun 2015 20:38:29 +0000 (13:38 -0700)]
vmxnet3: Changes for vmxnet3 adapter version 2 (fwd)
Make the driver understand adapter version 2.
Cc: Rachel Lunnon <rachel_lunnon@stormagic.com>
Signed-off-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shreyas Bhatewara [Fri, 19 Jun 2015 20:37:03 +0000 (13:37 -0700)]
vmxnet3: Fix memory leaks in rx path (fwd)
If rcd length was zero, the page used for frag was not being released. It
was being replaced with a newly allocated page. This change takes care
of that memory leak.
Signed-off-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shreyas Bhatewara [Fri, 19 Jun 2015 20:36:02 +0000 (13:36 -0700)]
vmxnet3: Register shutdown handler for device (fwd)
Implement a handler for pci shutdown so that the driver has an
opportunity to make sure that device is quiesced before the PCI
switches to legacy IRQs. This way the possibility of
"screaming interrupt" is avoided.
Acked-by: Shrikrishna Khare <skhare@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric W. Biederman [Fri, 19 Jun 2015 19:03:39 +0000 (14:03 -0500)]
netfilter: nf_qeueue: Drop queue entries on nf_unregister_hook
Add code to nf_unregister_hook to flush the nf_queue when a hook is
unregistered. This guarantees that the pointer that the nf_queue code
retains into the nf_hook list will remain valid while a packet is
queued.
I tested what would happen if we do not flush queued packets and was
trivially able to obtain the oops below. All that was required was
to stop the nf_queue listening process, to delete all of the nf_tables,
and to awaken the nf_queue listening process.
> BUG: unable to handle kernel paging request at
0000000100000001
> IP: [<
0000000100000001>] 0x100000001
> PGD
b9c35067 PUD 0
> Oops: 0010 [#1] SMP
> Modules linked in:
> CPU: 0 PID: 519 Comm: lt-nfqnl_test Not tainted
> task:
ffff8800b9c8c050 ti:
ffff8800ba9d8000 task.ti:
ffff8800ba9d8000
> RIP: 0010:[<
0000000100000001>] [<
0000000100000001>] 0x100000001
> RSP: 0018:
ffff8800ba9dba40 EFLAGS:
00010a16
> RAX:
ffff8800bab48a00 RBX:
ffff8800ba9dba90 RCX:
ffff8800ba9dba90
> RDX:
ffff8800b9c10128 RSI:
ffff8800ba940900 RDI:
ffff8800bab48a00
> RBP:
ffff8800b9c10128 R08:
ffffffff82976660 R09:
ffff8800ba9dbb28
> R10:
dead000000100100 R11:
dead000000200200 R12:
ffff8800ba940900
> R13:
ffffffff8313fd50 R14:
ffff8800b9c95200 R15:
0000000000000000
> FS:
00007fb91fc34700(0000) GS:
ffff8800bfa00000(0000) knlGS:
0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
> CR2:
0000000100000001 CR3:
00000000babfb000 CR4:
00000000000007f0
> Stack:
>
ffffffff8206ab0f ffffffff82982240 ffff8800bab48a00 ffff8800b9c100a8
>
ffff8800b9c10100 0000000000000001 ffff8800ba940900 ffff8800b9c10128
>
ffffffff8206bd65 ffff8800bfb0d5e0 ffff8800bab48a00 0000000000014dc0
> Call Trace:
> [<
ffffffff8206ab0f>] ? nf_iterate+0x4f/0xa0
> [<
ffffffff8206bd65>] ? nf_reinject+0x125/0x190
> [<
ffffffff8206dee5>] ? nfqnl_recv_verdict+0x255/0x360
> [<
ffffffff81386290>] ? nla_parse+0x80/0xf0
> [<
ffffffff8206c42c>] ? nfnetlink_rcv_msg+0x13c/0x240
> [<
ffffffff811b2fec>] ? __memcg_kmem_get_cache+0x4c/0x150
> [<
ffffffff8206c2f0>] ? nfnl_lock+0x20/0x20
> [<
ffffffff82068159>] ? netlink_rcv_skb+0xa9/0xc0
> [<
ffffffff820677bf>] ? netlink_unicast+0x12f/0x1c0
> [<
ffffffff82067ade>] ? netlink_sendmsg+0x28e/0x650
> [<
ffffffff81fdd814>] ? sock_sendmsg+0x44/0x50
> [<
ffffffff81fde07b>] ? ___sys_sendmsg+0x2ab/0x2c0
> [<
ffffffff810e8f73>] ? __wake_up+0x43/0x70
> [<
ffffffff8141a134>] ? tty_write+0x1c4/0x2a0
> [<
ffffffff81fde9f4>] ? __sys_sendmsg+0x44/0x80
> [<
ffffffff823ff8d7>] ? system_call_fastpath+0x12/0x6a
> Code: Bad RIP value.
> RIP [<
0000000100000001>] 0x100000001
> RSP <
ffff8800ba9dba40>
> CR2:
0000000100000001
> ---[ end trace
08eb65d42362793f ]---
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric W. Biederman [Fri, 19 Jun 2015 15:41:21 +0000 (10:41 -0500)]
netfilter: nftables: Do not run chains in the wrong network namespace
Currenlty nf_tables chains added in one network namespace are being
run in all network namespace. The issues are myriad with the simplest
being an unprivileged user can cause any network packets to be dropped.
Address this by simply not running nf_tables chains in the wrong
network namespace.
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pankaj Gupta [Fri, 19 Jun 2015 14:17:53 +0000 (19:47 +0530)]
macvtap: Increase limit of macvtap queues
Macvtap should be compatible with tuntap for
maximum number of queues.
commit '
baf71c5c1f80d82e92924050a60b5baaf97e3094 (tuntap:
Increase the number of queues in tun.)' removes
the limitations and increases number of queues in tuntap.
Now, Its safe to increase number of queues in Macvtap as well.
This patch also modifies 'macvtap_del_queues' function
to avoid extra memory allocation in stack.
Changes from v1->v2 :
Michael S. Tsirkin, Jason Wang :
Better way to use linked list to
avoid use of extra memory in stack.
Sergei Shtylyov : Specify dependent commit's summary.
Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Wagner [Fri, 19 Jun 2015 14:00:44 +0000 (16:00 +0200)]
bpf: BPF based latency tracing
BPF offers another way to generate latency histograms. We attach
kprobes at trace_preempt_off and trace_preempt_on and calculate the
time it takes to from seeing the off/on transition.
The first array is used to store the start time stamp. The key is the
CPU id. The second array stores the log2(time diff). We need to use
static allocation here (array and not hash tables). The kprobes
hooking into trace_preempt_on|off should not calling any dynamic
memory allocation or free path. We need to avoid recursivly
getting called. Besides that, it reduces jitter in the measurement.
CPU 0
latency : count distribution
1 -> 1 : 0 | |
2 -> 3 : 0 | |
4 -> 7 : 0 | |
8 -> 15 : 0 | |
16 -> 31 : 0 | |
32 -> 63 : 0 | |
64 -> 127 : 0 | |
128 -> 255 : 0 | |
256 -> 511 : 0 | |
512 -> 1023 : 0 | |
1024 -> 2047 : 0 | |
2048 -> 4095 : 166723 |*************************************** |
4096 -> 8191 : 19870 |*** |
8192 -> 16383 : 6324 | |
16384 -> 32767 : 1098 | |
32768 -> 65535 : 190 | |
65536 -> 131071 : 179 | |
131072 -> 262143 : 18 | |
262144 -> 524287 : 4 | |
524288 ->
1048575 : 1363 | |
CPU 1
latency : count distribution
1 -> 1 : 0 | |
2 -> 3 : 0 | |
4 -> 7 : 0 | |
8 -> 15 : 0 | |
16 -> 31 : 0 | |
32 -> 63 : 0 | |
64 -> 127 : 0 | |
128 -> 255 : 0 | |
256 -> 511 : 0 | |
512 -> 1023 : 0 | |
1024 -> 2047 : 0 | |
2048 -> 4095 : 114042 |*************************************** |
4096 -> 8191 : 9587 |** |
8192 -> 16383 : 4140 | |
16384 -> 32767 : 673 | |
32768 -> 65535 : 179 | |
65536 -> 131071 : 29 | |
131072 -> 262143 : 4 | |
262144 -> 524287 : 1 | |
524288 ->
1048575 : 364 | |
CPU 2
latency : count distribution
1 -> 1 : 0 | |
2 -> 3 : 0 | |
4 -> 7 : 0 | |
8 -> 15 : 0 | |
16 -> 31 : 0 | |
32 -> 63 : 0 | |
64 -> 127 : 0 | |
128 -> 255 : 0 | |
256 -> 511 : 0 | |
512 -> 1023 : 0 | |
1024 -> 2047 : 0 | |
2048 -> 4095 : 40147 |*************************************** |
4096 -> 8191 : 2300 |* |
8192 -> 16383 : 828 | |
16384 -> 32767 : 178 | |
32768 -> 65535 : 59 | |
65536 -> 131071 : 2 | |
131072 -> 262143 : 0 | |
262144 -> 524287 : 1 | |
524288 ->
1048575 : 174 | |
CPU 3
latency : count distribution
1 -> 1 : 0 | |
2 -> 3 : 0 | |
4 -> 7 : 0 | |
8 -> 15 : 0 | |
16 -> 31 : 0 | |
32 -> 63 : 0 | |
64 -> 127 : 0 | |
128 -> 255 : 0 | |
256 -> 511 : 0 | |
512 -> 1023 : 0 | |
1024 -> 2047 : 0 | |
2048 -> 4095 : 29626 |*************************************** |
4096 -> 8191 : 2704 |** |
8192 -> 16383 : 1090 | |
16384 -> 32767 : 160 | |
32768 -> 65535 : 72 | |
65536 -> 131071 : 32 | |
131072 -> 262143 : 26 | |
262144 -> 524287 : 12 | |
524288 ->
1048575 : 298 | |
All this is based on the trace3 examples written by
Alexei Starovoitov <ast@plumgrid.com>.
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Huang [Fri, 12 Jun 2015 05:34:56 +0000 (01:34 -0400)]
KVM: x86/vPMU: Enable PMU handling for AMD PERFCTRn and EVNTSELn MSRs
This patch enables AMD guest VM to access (R/W) PMU related MSRs, which
include PERFCTR[0..3] and EVNTSEL[0..3].
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Wei Huang [Fri, 12 Jun 2015 05:34:55 +0000 (01:34 -0400)]
KVM: x86/vPMU: Implement AMD vPMU code for KVM
This patch replaces the empty AMD vPMU functions (in pmu_amd.c) with real
implementation.
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Wei Huang [Fri, 19 Jun 2015 13:45:05 +0000 (15:45 +0200)]
KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch
This patch defines a new function pointer struct (kvm_pmu_ops) to
support vPMU for both Intel and AMD. The functions pointers defined in
this new struct will be linked with Intel and AMD functions later. In the
meanwhile the struct that maps from event_sel bits to PERF_TYPE_HARDWARE
events is renamed and moved from Intel specific code to kvm_host.h as a
common struct.
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Wei Huang [Fri, 19 Jun 2015 14:16:59 +0000 (16:16 +0200)]
KVM: x86/vPMU: introduce kvm_pmu_msr_idx_to_pmc
This function will be part of the kvm_pmu_ops interface. Introduce
it already.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Palik, Imre [Fri, 19 Jun 2015 12:21:51 +0000 (14:21 +0200)]
xen-netback: fix a BUG() during initialization
Commit
edafc132baac ("xen-netback: making the bandwidth limiter runtime settable")
introduced the capability to change the bandwidth rate limit at runtime.
But it also introduced a possible crashing bug.
If netback receives two XenbusStateConnected without getting the
hotplug-status watch firing in between, then it will try to register the
watches for the rate limiter again. But this triggers a BUG() in the watch
registration code.
The fix modifies connect() to remove the possibly existing packet-rate
watches before trying to install those watches. This behaviour is in line
with how connect() deals with the hotplug-status watch.
Signed-off-by: Imre Palik <imrep@amazon.de>
Cc: Matt Wilson <msw@amazon.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Satish Ashok [Fri, 19 Jun 2015 08:22:57 +0000 (01:22 -0700)]
bridge: multicast: restore router configuration on port link down/up
When a port goes through a link down/up the multicast router configuration
is not restored.
Signed-off-by: Satish Ashok <sashok@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Fixes: 0909e11758bd ("bridge: Add multicast_router sysfs entries")
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nikolay Aleksandrov [Fri, 19 Jun 2015 08:45:50 +0000 (01:45 -0700)]
bridge: multicast: start querier timer when running user-space stp
When STP is running in user-space and querier is configured, the
querier timer is not started when a port goes to a non-blocking state.
This patch unifies the user- and kernel-space stp multicast port enable
path and enables it in all states different from blocking. Note that when a
port goes in BR_STATE_DISABLED it's not enabled because that is handled
in the beginning of the port list loop.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ralf Baechle [Thu, 18 Jun 2015 22:46:53 +0000 (00:46 +0200)]
NET: ROSE: Don't dereference NULL neighbour pointer.
A ROSE socket doesn't necessarily always have a neighbour pointer so check
if the neighbour pointer is valid before dereferencing it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Tested-by: Bernard Pidoux <f6bvp@free.fr>
Cc: stable@vger.kernel.org #2.6.11+
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 23 Jun 2015 10:24:58 +0000 (03:24 -0700)]
Merge tag 'nfc-next-4.2-2' of git://git./linux/kernel/git/sameo/nfc-next
NFC 4.2 2nd pull request
This one only contains a one liner fix for a typo that I
introduced while cleaning some of the nfcmrvl patches that
were part of the 1st 4.2 pull request.
David S. Miller [Tue, 23 Jun 2015 10:17:47 +0000 (03:17 -0700)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
pull request: bluetooth-next 2015-06-18
Here's the final bluetooth-next pull request for 4.2.
- Cleanups & fixes to 802.15.4 code and related drivers
- Fix btusb driver memory leak
- New USB IDs for Atheros controllers
- Support for BCM4324B3 UART based Broadcom controller
- Fix for Bluetooth encryption key size handling
- Broadcom controller initialization fixes
- Support for Intel controller DDC parameters
- Support for multiple Bluetooth LE advertising instances
- Fix for HCI user channel cleanup path
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Mahesh Bandewar [Thu, 18 Jun 2015 18:30:54 +0000 (11:30 -0700)]
bonding: Display LACP info only to CAP_NET_ADMIN capable user
Actor and Partner details can be accessed via proc-fs, sys-fs
entries or netlink interface. These interfaces are world readable
at this moment. The earlier patch-series made the LACP communication
secure to avoid nuisance attack from within the same L2 domain but
it did not prevent "someone unprivileged" looking at that information
on host and perform the same act.
This patch essentially avoids spitting those entries if the user
in question does not have enough privileges.
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Christoph Paasch [Thu, 18 Jun 2015 16:15:34 +0000 (09:15 -0700)]
tcp: Do not call tcp_fastopen_reset_cipher from interrupt context
tcp_fastopen_reset_cipher really cannot be called from interrupt
context. It allocates the tcp_fastopen_context with GFP_KERNEL and
calls crypto_alloc_cipher, which allocates all kind of stuff with
GFP_KERNEL.
Thus, we might sleep when the key-generation is triggered by an
incoming TFO cookie-request which would then happen in interrupt-
context, as shown by enabling CONFIG_DEBUG_ATOMIC_SLEEP:
[ 36.001813] BUG: sleeping function called from invalid context at mm/slub.c:1266
[ 36.003624] in_atomic(): 1, irqs_disabled(): 0, pid: 1016, name: packetdrill
[ 36.004859] CPU: 1 PID: 1016 Comm: packetdrill Not tainted 4.1.0-rc7 #14
[ 36.006085] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014
[ 36.008250]
00000000000004f2 ffff88007f8838a8 ffffffff8171d53a ffff880075a084a8
[ 36.009630]
ffff880075a08000 ffff88007f8838c8 ffffffff810967d3 ffff88007f883928
[ 36.011076]
0000000000000000 ffff88007f8838f8 ffffffff81096892 ffff88007f89be00
[ 36.012494] Call Trace:
[ 36.012953] <IRQ> [<
ffffffff8171d53a>] dump_stack+0x4f/0x6d
[ 36.014085] [<
ffffffff810967d3>] ___might_sleep+0x103/0x170
[ 36.015117] [<
ffffffff81096892>] __might_sleep+0x52/0x90
[ 36.016117] [<
ffffffff8118e887>] kmem_cache_alloc_trace+0x47/0x190
[ 36.017266] [<
ffffffff81680d82>] ? tcp_fastopen_reset_cipher+0x42/0x130
[ 36.018485] [<
ffffffff81680d82>] tcp_fastopen_reset_cipher+0x42/0x130
[ 36.019679] [<
ffffffff81680f01>] tcp_fastopen_init_key_once+0x61/0x70
[ 36.020884] [<
ffffffff81680f2c>] __tcp_fastopen_cookie_gen+0x1c/0x60
[ 36.022058] [<
ffffffff816814ff>] tcp_try_fastopen+0x58f/0x730
[ 36.023118] [<
ffffffff81671788>] tcp_conn_request+0x3e8/0x7b0
[ 36.024185] [<
ffffffff810e3872>] ? __module_text_address+0x12/0x60
[ 36.025327] [<
ffffffff8167b2e1>] tcp_v4_conn_request+0x51/0x60
[ 36.026410] [<
ffffffff816727e0>] tcp_rcv_state_process+0x190/0xda0
[ 36.027556] [<
ffffffff81661f97>] ? __inet_lookup_established+0x47/0x170
[ 36.028784] [<
ffffffff8167c2ad>] tcp_v4_do_rcv+0x16d/0x3d0
[ 36.029832] [<
ffffffff812e6806>] ? security_sock_rcv_skb+0x16/0x20
[ 36.030936] [<
ffffffff8167cc8a>] tcp_v4_rcv+0x77a/0x7b0
[ 36.031875] [<
ffffffff816af8c3>] ? iptable_filter_hook+0x33/0x70
[ 36.032953] [<
ffffffff81657d22>] ip_local_deliver_finish+0x92/0x1f0
[ 36.034065] [<
ffffffff81657f1a>] ip_local_deliver+0x9a/0xb0
[ 36.035069] [<
ffffffff81657c90>] ? ip_rcv+0x3d0/0x3d0
[ 36.035963] [<
ffffffff81657569>] ip_rcv_finish+0x119/0x330
[ 36.036950] [<
ffffffff81657ba7>] ip_rcv+0x2e7/0x3d0
[ 36.037847] [<
ffffffff81610652>] __netif_receive_skb_core+0x552/0x930
[ 36.038994] [<
ffffffff81610a57>] __netif_receive_skb+0x27/0x70
[ 36.040033] [<
ffffffff81610b72>] process_backlog+0xd2/0x1f0
[ 36.041025] [<
ffffffff81611482>] net_rx_action+0x122/0x310
[ 36.042007] [<
ffffffff81076743>] __do_softirq+0x103/0x2f0
[ 36.042978] [<
ffffffff81723e3c>] do_softirq_own_stack+0x1c/0x30
This patch moves the call to tcp_fastopen_init_key_once to the places
where a listener socket creates its TFO-state, which always happens in
user-context (either from the setsockopt, or implicitly during the
listen()-call)
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Fixes: 222e83d2e0ae ("tcp: switch tcp_fastopen key generation to net_get_random_once")
Signed-off-by: Christoph Paasch <cpaasch@apple.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stas Sergeev [Thu, 18 Jun 2015 15:36:03 +0000 (18:36 +0300)]
mvneta: add forgotten initialization of autonegotiation bits
The commit
898b2970e2c9 ("mvneta: implement SGMII-based in-band link state
signaling")
changed mvneta_adjust_link() so that it does not clear the auto-negotiation
bits in MVNETA_GMAC_AUTONEG_CONFIG register. This was necessary for
auto-negotiation mode to work.
Unfortunately I haven't checked if these bits are ever initialized.
It appears they are not.
This patch adds the missing initialization of the auto-negotiation bits
in the MVNETA_GMAC_AUTONEG_CONFIG register.
It fixes the following regression:
https://www.mail-archive.com/netdev@vger.kernel.org/msg67928.html
Since the patch was tested to fix a regression, it should be applied to
stable tree.
Tested-by: Arnaud Ebalard <arno@natisbad.org>
CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
CC: Florian Fainelli <f.fainelli@gmail.com>
CC: netdev@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: stable@vger.kernel.org
Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 23 Jun 2015 08:24:48 +0000 (01:24 -0700)]
Merge branch 'macb-sama5d2'
Nicolas Ferre says:
====================
net/macb: add sama5d2 support
This series is basically the support for another flavor of the GEM IP
configuration. It ended up being a series because of some little fixes made to
the binding documentation before adding the new compatibility string.
Bye,
v2: - fix bindings
- add sama5d2 compatibility string to the binding documentation
====================
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cyrille Pitchen [Thu, 18 Jun 2015 14:27:23 +0000 (16:27 +0200)]
net/macb: add config for Atmel sama5d2 SoCs
Add the compatible string for Atmel sama5d2 SoC family as the configuration
options differ from other instances of the GEM.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Ferre [Thu, 18 Jun 2015 14:27:22 +0000 (16:27 +0200)]
net/macb: bindings doc: add sama5d2 compatibility sting
Add sama5d2 to the biding documentation for this use of the GEM IP.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Ferre [Thu, 18 Jun 2015 14:27:21 +0000 (16:27 +0200)]
net/macb: bindings doc/trivial: fix sama5d4 comment
On sama5d4, we only have a GEM IP that is configured to do 10/100 Mbits. So the
use of "Gigabit" can be confusing.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Ferre [Thu, 18 Jun 2015 14:27:20 +0000 (16:27 +0200)]
net/macb: bindings doc: fix compatibility string
In the driver and the DT bindings we use the "atmel" prefix. Fix it in the
binding documentation.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hiroaki SHIMODA [Thu, 18 Jun 2015 11:40:54 +0000 (20:40 +0900)]
inet_diag: Remove _bh suffix in inet_diag_dump_reqs().
inet_diag_dump_reqs() is called from inet_diag_dump_icsk() with BH
disabled. So no need to disable BH in inet_diag_dump_reqs().
Signed-off-by: Hiroaki Shimoda <shimoda.hiroaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shengzhou Liu [Thu, 18 Jun 2015 08:42:47 +0000 (16:42 +0800)]
net/phy: Add support for Realtek RTL8211F
RTL8211F has different register definitions from RTL8211E.
Specially it needs to enable TXDLY in case of RGMII.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 23 Jun 2015 08:03:18 +0000 (01:03 -0700)]
Merge tag 'wireless-drivers-next-for-davem-2015-06-18' of git://git./linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
Major changes:
mwifiex:
* enhancements for AP mode: support verbose information in station
dump command and also information about AP link.
* enable power save by default
brcmfmac:
* fix module reload issue for PCIe
* improving msgbuf protocol for PCIe devices
* rework .get_station() cfg80211 callback operation
* determine interface combinations upon device feature support
ath9k:
* ath9k_htc: add support of channel switch
wil6210:
* add modparam for bcast ring size
* support hidden SSID
* add per-MCS Rx stats
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Scott Feldman [Wed, 17 Jun 2015 23:08:31 +0000 (16:08 -0700)]
switchdev: fdb filter_dev is always NULL for self (device), so remove check
Remove the filter_dev check when dumping fdb entries, otherwise dump
returns empty list. filter_dev is always passed as NULL when dumping fdbs
on SELF. We want the fdbs installed on the device to be listed in the
dump.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Fixes: 45d4122c ("switchdev: add support for fdb add/del/dump via switchdev_port_obj ops")
Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 23 Jun 2015 04:04:48 +0000 (21:04 -0700)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
"Here is the crypto update for 4.2:
API:
- Convert RNG interface to new style.
- New AEAD interface with one SG list for AD and plain/cipher text.
All external AEAD users have been converted.
- New asymmetric key interface (akcipher).
Algorithms:
- Chacha20, Poly1305 and RFC7539 support.
- New RSA implementation.
- Jitter RNG.
- DRBG is now seeded with both /dev/random and Jitter RNG. If kernel
pool isn't ready then DRBG will be reseeded when it is.
- DRBG is now the default crypto API RNG, replacing krng.
- 842 compression (previously part of powerpc nx driver).
Drivers:
- Accelerated SHA-512 for arm64.
- New Marvell CESA driver that supports DMA and more algorithms.
- Updated powerpc nx 842 support.
- Added support for SEC1 hardware to talitos"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (292 commits)
crypto: marvell/cesa - remove COMPILE_TEST dependency
crypto: algif_aead - Temporarily disable all AEAD algorithms
crypto: af_alg - Forbid the use internal algorithms
crypto: echainiv - Only hold RNG during initialisation
crypto: seqiv - Add compatibility support without RNG
crypto: eseqiv - Offer normal cipher functionality without RNG
crypto: chainiv - Offer normal cipher functionality without RNG
crypto: user - Add CRYPTO_MSG_DELRNG
crypto: user - Move cryptouser.h to uapi
crypto: rng - Do not free default RNG when it becomes unused
crypto: skcipher - Allow givencrypt to be NULL
crypto: sahara - propagate the error on clk_disable_unprepare() failure
crypto: rsa - fix invalid select for AKCIPHER
crypto: picoxcell - Update to the current clk API
crypto: nx - Check for bogus firmware properties
crypto: marvell/cesa - add DT bindings documentation
crypto: marvell/cesa - add support for Kirkwood and Dove SoCs
crypto: marvell/cesa - add support for Orion SoCs
crypto: marvell/cesa - add allhwsupport module parameter
crypto: marvell/cesa - add support for all armada SoCs
...
Linus Torvalds [Tue, 23 Jun 2015 03:33:38 +0000 (20:33 -0700)]
Merge tag 'please-pull-paravirt' of git://git./linux/kernel/git/aegl/linux
Pull ia64 paravirt removal from Tony Luck:
"Nobody cares about paravirtualization on ia64 anymore"
* tag 'please-pull-paravirt' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
ia64: remove paravirt code
Linus Torvalds [Tue, 23 Jun 2015 03:32:50 +0000 (20:32 -0700)]
Merge branch 'for-4.2' of git://git./linux/kernel/git/geert/linux-m68k
Pull m68k update from Geert Uytterhoeven.
* 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Use for_each_sg()
m68k/defconfig: Update defconfigs for v4.1-rc6
Linus Torvalds [Tue, 23 Jun 2015 02:42:56 +0000 (19:42 -0700)]
Merge branch 'irq-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"The irq departement delivers:
- plug a potential race related to chained interrupt handlers
- core updates which address the needs of the x86 irqdomain conversion
- new irqchip callback to support affinity settings for VCPUs
- the usual pile of updates to interrupt chip drivers
- a few helper functions to allow further cleanups and
simplifications
I have a largish pile of coccinelle scripted/verified cleanups and
simplifications pending on top of that, but I prefer to send that
towards the end of the merge window when the arch/driver changes have
hit your tree to avoid API change wreckage as far as possible"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
genirq: Remove bogus restriction in irq_move_mask_irq()
irqchip: atmel-aic5: Add sama5d2 support
irq: spear-shirq: Fix race in installing chained IRQ handler
irq: irq-keystone: Fix race in installing chained IRQ handler
gpio: gpio-tegra: Fix race in installing chained IRQ handler
gpio: gpio-mxs: Fix race in installing chained IRQ handler
gpio: gpio-mxc: Fix race in installing chained IRQ handler
ARM: gemini: Fix race in installing GPIO chained IRQ handler
GPU: ipu: Fix race in installing IPU chained IRQ handler
ARM: sa1100: convert SA11x0 related code to use new chained handler helper
irq: Add irq_set_chained_handler_and_data()
irqchip: exynos-combiner: Save IRQ enable set on suspend
genirq: Introduce helper function irq_data_get_affinity_mask()
genirq: Introduce helper function irq_data_get_node()
genirq: Introduce struct irq_common_data to host shared irq data
genirq: Prevent crash in irq_move_irq()
genirq: Enhance irq_data_to_desc() to support hierarchy irqdomain
irqchip: gic: Simplify gic_configure_irq by using IRQCHIP_SET_TYPE_MASKED
irqchip: renesas: intc-irqpin: Improve binding documentation
genirq: Set IRQCHIP_SKIP_SET_WAKE for no_irq_chip
...
Linus Torvalds [Tue, 23 Jun 2015 02:20:04 +0000 (19:20 -0700)]
Merge branch 'timers-nohz-for-linus' of git://git./linux/kernel/git/tip/tip
Pull NOHZ updates from Thomas Gleixner:
"A few updates to the nohz infrastructure:
- recursion protection for context tracking
- make the TIF_NOHZ inheritance smarter
- isolate cpus which belong to the NOHZ full set"
* 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
nohz: Set isolcpus when nohz_full is set
nohz: Add tick_nohz_full_add_cpus_to() API
context_tracking: Inherit TIF_NOHZ through forks instead of context switches
context_tracking: Protect against recursion
Linus Torvalds [Tue, 23 Jun 2015 01:57:44 +0000 (18:57 -0700)]
Merge branch 'timers-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"A rather largish update for everything time and timer related:
- Cache footprint optimizations for both hrtimers and timer wheel
- Lower the NOHZ impact on systems which have NOHZ or timer migration
disabled at runtime.
- Optimize run time overhead of hrtimer interrupt by making the clock
offset updates smarter
- hrtimer cleanups and removal of restrictions to tackle some
problems in sched/perf
- Some more leap second tweaks
- Another round of changes addressing the 2038 problem
- First step to change the internals of clock event devices by
introducing the necessary infrastructure
- Allow constant folding for usecs/msecs_to_jiffies()
- The usual pile of clockevent/clocksource driver updates
The hrtimer changes contain updates to sched, perf and x86 as they
depend on them plus changes all over the tree to cleanup API changes
and redundant code, which got copied all over the place. The y2038
changes touch s390 to remove the last non 2038 safe code related to
boot/persistant clock"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits)
clocksource: Increase dependencies of timer-stm32 to limit build wreckage
timer: Minimize nohz off overhead
timer: Reduce timer migration overhead if disabled
timer: Stats: Simplify the flags handling
timer: Replace timer base by a cpu index
timer: Use hlist for the timer wheel hash buckets
timer: Remove FIFO "guarantee"
timers: Sanitize catchup_timer_jiffies() usage
hrtimer: Allow hrtimer::function() to free the timer
seqcount: Introduce raw_write_seqcount_barrier()
seqcount: Rename write_seqcount_barrier()
hrtimer: Fix hrtimer_is_queued() hole
hrtimer: Remove HRTIMER_STATE_MIGRATE
selftest: Timers: Avoid signal deadlock in leap-a-day
timekeeping: Copy the shadow-timekeeper over the real timekeeper last
clockevents: Check state instead of mode in suspend/resume path
selftests: timers: Add leap-second timer edge testing to leap-a-day.c
ntp: Do leapsecond adjustment in adjtimex read path
time: Prevent early expiry of hrtimers[CLOCK_REALTIME] at the leap second edge
ntp: Introduce and use SECS_PER_DAY macro instead of 86400
...
Linus Torvalds [Tue, 23 Jun 2015 00:59:09 +0000 (17:59 -0700)]
Merge branch 'x86-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 core updates from Ingo Molnar:
"There were so many changes in the x86/asm, x86/apic and x86/mm topics
in this cycle that the topical separation of -tip broke down somewhat -
so the result is a more traditional architecture pull request,
collected into the 'x86/core' topic.
The topics were still maintained separately as far as possible, so
bisectability and conceptual separation should still be pretty good -
but there were a handful of merge points to avoid excessive
dependencies (and conflicts) that would have been poorly tested in the
end.
The next cycle will hopefully be much more quiet (or at least will
have fewer dependencies).
The main changes in this cycle were:
* x86/apic changes, with related IRQ core changes: (Jiang Liu, Thomas
Gleixner)
- This is the second and most intrusive part of changes to the x86
interrupt handling - full conversion to hierarchical interrupt
domains:
[IOAPIC domain] -----
|
[MSI domain] --------[Remapping domain] ----- [ Vector domain ]
| (optional) |
[HPET MSI domain] ----- |
|
[DMAR domain] -----------------------------
|
[Legacy domain] -----------------------------
This now reflects the actual hardware and allowed us to distangle
the domain specific code from the underlying parent domain, which
can be optional in the case of interrupt remapping. It's a clear
separation of functionality and removes quite some duct tape
constructs which plugged the remap code between ioapic/msi/hpet
and the vector management.
- Intel IOMMU IRQ remapping enhancements, to allow direct interrupt
injection into guests (Feng Wu)
* x86/asm changes:
- Tons of cleanups and small speedups, micro-optimizations. This
is in preparation to move a good chunk of the low level entry
code from assembly to C code (Denys Vlasenko, Andy Lutomirski,
Brian Gerst)
- Moved all system entry related code to a new home under
arch/x86/entry/ (Ingo Molnar)
- Removal of the fragile and ugly CFI dwarf debuginfo annotations.
Conversion to C will reintroduce many of them - but meanwhile
they are only getting in the way, and the upstream kernel does
not rely on them (Ingo Molnar)
- NOP handling refinements. (Borislav Petkov)
* x86/mm changes:
- Big PAT and MTRR rework: making the code more robust and
preparing to phase out exposing direct MTRR interfaces to drivers -
in favor of using PAT driven interfaces (Toshi Kani, Luis R
Rodriguez, Borislav Petkov)
- New ioremap_wt()/set_memory_wt() interfaces to support
Write-Through cached memory mappings. This is especially
important for good performance on NVDIMM hardware (Toshi Kani)
* x86/ras changes:
- Add support for deferred errors on AMD (Aravind Gopalakrishnan)
This is an important RAS feature which adds hardware support for
poisoned data. That means roughly that the hardware marks data
which it has detected as corrupted but wasn't able to correct, as
poisoned data and raises an APIC interrupt to signal that in the
form of a deferred error. It is the OS's responsibility then to
take proper recovery action and thus prolonge system lifetime as
far as possible.
- Add support for Intel "Local MCE"s: upcoming CPUs will support
CPU-local MCE interrupts, as opposed to the traditional system-
wide broadcasted MCE interrupts (Ashok Raj)
- Misc cleanups (Borislav Petkov)
* x86/platform changes:
- Intel Atom SoC updates
... and lots of other cleanups, fixlets and other changes - see the
shortlog and the Git log for details"
* 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (222 commits)
x86/hpet: Use proper hpet device number for MSI allocation
x86/hpet: Check for irq==0 when allocating hpet MSI interrupts
x86/mm/pat, drivers/infiniband/ipath: Use arch_phys_wc_add() and require PAT disabled
x86/mm/pat, drivers/media/ivtv: Use arch_phys_wc_add() and require PAT disabled
x86/platform/intel/baytrail: Add comments about why we disabled HPET on Baytrail
genirq: Prevent crash in irq_move_irq()
genirq: Enhance irq_data_to_desc() to support hierarchy irqdomain
iommu, x86: Properly handle posted interrupts for IOMMU hotplug
iommu, x86: Provide irq_remapping_cap() interface
iommu, x86: Setup Posted-Interrupts capability for Intel iommu
iommu, x86: Add cap_pi_support() to detect VT-d PI capability
iommu, x86: Avoid migrating VT-d posted interrupts
iommu, x86: Save the mode (posted or remapped) of an IRTE
iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip
iommu: dmar: Provide helper to copy shared irte fields
iommu: dmar: Extend struct irte for VT-d Posted-Interrupts
iommu: Add new member capability to struct irq_remap_ops
x86/asm/entry/64: Disentangle error_entry/exit gsbase/ebx/usermode code
x86/asm/entry/32: Shorten __audit_syscall_entry() args preparation
x86/asm/entry/32: Explain reloading of registers after __audit_syscall_entry()
...
Linus Torvalds [Tue, 23 Jun 2015 00:51:59 +0000 (17:51 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 warning fixlet from Ingo Molnar:
"A build fix for certain (rare) variants of binutils that did not make
it into v4.1"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Fix overflow warning with 32-bit binutils
Linus Torvalds [Tue, 23 Jun 2015 00:46:14 +0000 (17:46 -0700)]
Merge branch 'x86-microcode-for-linus' of git://git./linux/kernel/git/tip/tip
Pul x86 microcode updates from Ingo Molnar:
"x86 microcode loader updates from Borislav Petkov:
- early parsing of the built-in microcode
- cleanups
- misc smaller fixes"
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode: Correct CPU family related variable types
x86/microcode: Disable builtin microcode loading on 32-bit for now
x86/microcode/intel: Rename get_matching_sig()
x86/microcode/intel: Simplify get_matching_sig()
x86/microcode/intel: Simplify update_match_cpu()
x86/microcode/intel: Rename get_matching_microcode
x86/cpu/microcode: Zap changelog
x86/microcode: Parse built-in microcode early
x86/microcode/intel: Remove unused @rev arg of get_matching_sig()
x86/microcode/intel: Get rid of revision_is_newer()
Linus Torvalds [Tue, 23 Jun 2015 00:40:55 +0000 (17:40 -0700)]
Merge branch 'x86-kdump-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 kdump updates from Ingo Molnar:
"Three kdump robustness related improvements (Joerg Roedel)"
* 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/crash: Allocate enough low memory when crashkernel=high
x86/swiotlb: Try coherent allocations with __GFP_NOWARN
swiotlb: Warn on allocation failure in swiotlb_alloc_coherent()
Uwe Kleine-König [Mon, 8 Jun 2015 09:53:45 +0000 (11:53 +0200)]
HSI: nokia-modem: use flags argument of devm_gpiod_get to set direction
Since
39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.
Use this to simplify the driver. Furthermore this is one caller less
that stops us making the flags argument to gpiod_get*() mandatory.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Sebastian Reichel [Mon, 4 May 2015 13:51:36 +0000 (15:51 +0200)]
HSI: nokia-modem: Reduce missing driver message to debug level
Reduce message priority from dev_err to dev_dbg for missing cmt-speech
or ssi-protocol drivers, since they will be probed again and it may
result in spamming the boot log.
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Sebastian Reichel [Thu, 16 Apr 2015 17:05:18 +0000 (19:05 +0200)]
HSI: cmt_speech: fix timestamp interface
The user interface for timestamps in the new cmt_speech
driver is broken in multiple ways:
- The layout is incompatible between 32-bit and 64-bit user
space, because of the size differences in 'struct timespec'.
This means that the driver can not work when used with 32-bit
user space on a 64-bit kernel.
- As there are plans to change 32-bit user space to use
a 64-bit time_t type in the future, it will also be
incompatible with new 32-bit user space.
- It is using ktime_get_ts under it's deprecated alias
(do_posix_clock_monotonic_gettime).
To keep support for the user space tools written for this driver (which
have lived many years out-of-tree), the interface has been hardened to
unsigned 32-bit values.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Linus Torvalds [Tue, 23 Jun 2015 00:16:11 +0000 (17:16 -0700)]
Merge branch 'x86-fpu-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 FPU updates from Ingo Molnar:
"This tree contains two main changes:
- The big FPU code rewrite: wide reaching cleanups and reorganization
that pulls all the FPU code together into a clean base in
arch/x86/fpu/.
The resulting code is leaner and faster, and much easier to
understand. This enables future work to further simplify the FPU
code (such as removing lazy FPU restores).
By its nature these changes have a substantial regression risk: FPU
code related bugs are long lived, because races are often subtle
and bugs mask as user-space failures that are difficult to track
back to kernel side backs. I'm aware of no unfixed (or even
suspected) FPU related regression so far.
- MPX support rework/fixes. As this is still not a released CPU
feature, there were some buglets in the code - should be much more
robust now (Dave Hansen)"
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (250 commits)
x86/fpu: Fix double-increment in setup_xstate_features()
x86/mpx: Allow 32-bit binaries on 64-bit kernels again
x86/mpx: Do not count MPX VMAs as neighbors when unmapping
x86/mpx: Rewrite the unmap code
x86/mpx: Support 32-bit binaries on 64-bit kernels
x86/mpx: Use 32-bit-only cmpxchg() for 32-bit apps
x86/mpx: Introduce new 'directory entry' to 'addr' helper function
x86/mpx: Add temporary variable to reduce masking
x86: Make is_64bit_mm() widely available
x86/mpx: Trace allocation of new bounds tables
x86/mpx: Trace the attempts to find bounds tables
x86/mpx: Trace entry to bounds exception paths
x86/mpx: Trace #BR exceptions
x86/mpx: Introduce a boot-time disable flag
x86/mpx: Restrict the mmap() size check to bounds tables
x86/mpx: Remove redundant MPX_BNDCFG_ADDR_MASK
x86/mpx: Clean up the code by not passing a task pointer around when unnecessary
x86/mpx: Use the new get_xsave_field_ptr()API
x86/fpu/xstate: Wrap get_xsave_addr() to make it safer
x86/fpu/xstate: Fix up bad get_xsave_addr() assumptions
...
Linus Torvalds [Tue, 23 Jun 2015 00:10:44 +0000 (17:10 -0700)]
Merge branch 'x86-efi-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 EFI updates from Ingo Molnar:
"EFI changes:
- Use idiomatic negative error values in efivar_create_sysfs_entry()
instead of returning '1' to indicate error (Dan Carpenter)
- Implement new support to expose the EFI System Resource Tables in
sysfs, which provides information for performing firmware updates
(Peter Jones)
- Documentation cleanup in the EFI handover protocol section which
falsely claimed that 'cmdline_size' needed to be filled out by the
boot loader (Alex Smith)
- Align the order of SMBIOS tables in /sys/firmware/efi/systab to
match the way that we do things for ACPI and add documentation to
Documentation/ABI (Jean Delvare)"
* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: Work around ia64 build problem with ESRT driver
efi: Add 'systab' information to Documentation/ABI
efi: dmi: List SMBIOS3 table before SMBIOS table
efi/esrt: Fix some compiler warnings
x86, doc: Remove cmdline_size from list of fields to be filled in for EFI handover
efi: Add esrt support
efi: efivar_create_sysfs_entry() should return negative error codes
Linus Torvalds [Tue, 23 Jun 2015 00:09:32 +0000 (17:09 -0700)]
Merge branch 'x86-debug-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 debugging documentation updates from Ingo Molnar:
"Documentation updates about x86 kernel stacks"
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/Documentation: Adapt Ingo's explanation on printing backtraces
x86/Documentation: Remove STACKFAULT_STACK bulletpoint
x86/Documentation: Move kernel-stacks doc one level up
Linus Torvalds [Mon, 22 Jun 2015 23:43:01 +0000 (16:43 -0700)]
Merge branch 'x86-cpu-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 CPU features from Ingo Molnar:
"Various CPU feature support related changes: in particular the
/proc/cpuinfo model name sanitization change should be monitored, it
has a chance to break stuff. (but really shouldn't and there are no
regression reports)"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/amd: Give access to the number of nodes in a physical package
x86/cpu: Trim model ID whitespace
x86/cpu: Strip any /proc/cpuinfo model name field whitespace
x86/cpu/amd: Set X86_FEATURE_EXTD_APICID for future processors
x86/gart: Check for GART support before accessing GART registers
Linus Torvalds [Mon, 22 Jun 2015 23:23:00 +0000 (16:23 -0700)]
Merge branch 'x86-cleanups-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
"Misc cleanups"
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Clean up types in xlate_dev_mem_ptr() some more
x86: Deinline dma_free_attrs()
x86: Deinline dma_alloc_attrs()
x86: Remove unused TI_cpu
x86: Merge common 32-bit values in asm-offsets.c
Linus Torvalds [Mon, 22 Jun 2015 22:52:04 +0000 (15:52 -0700)]
Merge branch 'sched-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The main changes are:
- lockless wakeup support for futexes and IPC message queues
(Davidlohr Bueso, Peter Zijlstra)
- Replace spinlocks with atomics in thread_group_cputimer(), to
improve scalability (Jason Low)
- NUMA balancing improvements (Rik van Riel)
- SCHED_DEADLINE improvements (Wanpeng Li)
- clean up and reorganize preemption helpers (Frederic Weisbecker)
- decouple page fault disabling machinery from the preemption
counter, to improve debuggability and robustness (David
Hildenbrand)
- SCHED_DEADLINE documentation updates (Luca Abeni)
- topology CPU masks cleanups (Bartosz Golaszewski)
- /proc/sched_debug improvements (Srikar Dronamraju)"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits)
sched/deadline: Remove needless parameter in dl_runtime_exceeded()
sched: Remove superfluous resetting of the p->dl_throttled flag
sched/deadline: Drop duplicate init_sched_dl_class() declaration
sched/deadline: Reduce rq lock contention by eliminating locking of non-feasible target
sched/deadline: Make init_sched_dl_class() __init
sched/deadline: Optimize pull_dl_task()
sched/preempt: Add static_key() to preempt_notifiers
sched/preempt: Fix preempt notifiers documentation about hlist_del() within unsafe iteration
sched/stop_machine: Fix deadlock between multiple stop_two_cpus()
sched/debug: Add sum_sleep_runtime to /proc/<pid>/sched
sched/debug: Replace vruntime with wait_sum in /proc/sched_debug
sched/debug: Properly format runnable tasks in /proc/sched_debug
sched/numa: Only consider less busy nodes as numa balancing destinations
Revert
095bebf61a46 ("sched/numa: Do not move past the balance point if unbalanced")
sched/fair: Prevent throttling in early pick_next_task_fair()
preempt: Reorganize the notrace definitions a bit
preempt: Use preempt_schedule_context() as the official tracing preemption point
sched: Make preempt_schedule_context() function-tracing safe
x86: Remove cpu_sibling_mask() and cpu_core_mask()
x86: Replace cpu_**_mask() with topology_**_cpumask()
...
Linus Torvalds [Mon, 22 Jun 2015 22:45:41 +0000 (15:45 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"These are the left over fixes from the v4.1 cycle"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools: Fix build breakage if prefix= is specified
perf/x86: Honor the architectural performance monitoring version
perf/x86/intel: Fix PMI handling for Intel PT
perf/x86/intel/bts: Fix DS area sharing with x86_pmu events
perf/x86: Add more Broadwell model numbers
perf: Fix ring_buffer_attach() RCU sync, again
Linus Torvalds [Mon, 22 Jun 2015 22:19:21 +0000 (15:19 -0700)]
Merge branch 'perf-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Kernel side changes mostly consist of work on x86 PMU drivers:
- x86 Intel PT (hardware CPU tracer) improvements (Alexander
Shishkin)
- x86 Intel CQM (cache quality monitoring) improvements (Thomas
Gleixner)
- x86 Intel PEBSv3 support (Peter Zijlstra)
- x86 Intel PEBS interrupt batching support for lower overhead
sampling (Zheng Yan, Kan Liang)
- x86 PMU scheduler fixes and improvements (Peter Zijlstra)
There's too many tooling improvements to list them all - here are a
few select highlights:
'perf bench':
- Introduce new 'perf bench futex' benchmark: 'wake-parallel', to
measure parallel waker threads generating contention for kernel
locks (hb->lock). (Davidlohr Bueso)
'perf top', 'perf report':
- Allow disabling/enabling events dynamicaly in 'perf top':
a 'perf top' session can instantly become a 'perf report'
one, i.e. going from dynamic analysis to a static one,
returning to a dynamic one is possible, to toogle the
modes, just press 'f' to 'freeze/unfreeze' the sampling. (Arnaldo Carvalho de Melo)
- Make Ctrl-C stop processing on TUI, allowing interrupting the load of big
perf.data files (Namhyung Kim)
'perf probe': (Masami Hiramatsu)
- Support glob wildcards for function name
- Support $params special probe argument: Collect all function arguments
- Make --line checks validate C-style function name.
- Add --no-inlines option to avoid searching inline functions
- Greatly speed up 'perf probe --list' by caching debuginfo.
- Improve --filter support for 'perf probe', allowing using its arguments
on other commands, as --add, --del, etc.
'perf sched':
- Add option in 'perf sched' to merge like comms to lat output (Josef Bacik)
Plus tons of infrastructure work - in particular preparation for
upcoming threaded perf report support, but also lots of other work -
and fixes and other improvements. See (much) more details in the
shortlog and in the git log"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (305 commits)
perf tools: Configurable per thread proc map processing time out
perf tools: Add time out to force stop proc map processing
perf report: Fix sort__sym_cmp to also compare end of symbol
perf hists browser: React to unassigned hotkey pressing
perf top: Tell the user how to unfreeze events after pressing 'f'
perf hists browser: Honour the help line provided by builtin-{top,report}.c
perf hists browser: Do not exit when 'f' is pressed in 'report' mode
perf top: Replace CTRL+z with 'f' as hotkey for enable/disable events
perf annotate: Rename source_line_percent to source_line_samples
perf annotate: Display total number of samples with --show-total-period
perf tools: Ensure thread-stack is flushed
perf top: Allow disabling/enabling events dynamicly
perf evlist: Add toggle_enable() method
perf trace: Fix race condition at the end of started workloads
perf probe: Speed up perf probe --list by caching debuginfo
perf probe: Show usage even if the last event is skipped
perf tools: Move libtraceevent dynamic list to separated LDFLAGS variable
perf tools: Fix a problem when opening old perf.data with different byte order
perf tools: Ignore .config-detected in .gitignore
perf probe: Fix to return error if no probe is added
...
Linus Torvalds [Mon, 22 Jun 2015 21:54:22 +0000 (14:54 -0700)]
Merge branch 'locking-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"The main changes are:
- 'qspinlock' support, enabled on x86: queued spinlocks - these are
now the spinlock variant used by x86 as they outperform ticket
spinlocks in every category. (Waiman Long)
- 'pvqspinlock' support on x86: paravirtualized variant of queued
spinlocks. (Waiman Long, Peter Zijlstra)
- 'qrwlock' support, enabled on x86: queued rwlocks. Similar to
queued spinlocks, they are now the variant used by x86:
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
- various lockdep fixlets
- various locking primitives cleanups, further WRITE_ONCE()
propagation"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
locking/lockdep: Remove hard coded array size dependency
locking/qrwlock: Don't contend with readers when setting _QW_WAITING
lockdep: Do not break user-visible string
locking/arch: Rename set_mb() to smp_store_mb()
locking/arch: Add WRITE_ONCE() to set_mb()
rtmutex: Warn if trylock is called from hard/softirq context
arch: Remove __ARCH_HAVE_CMPXCHG
locking/rtmutex: Drop usage of __HAVE_ARCH_CMPXCHG
locking/qrwlock: Rename QUEUE_RWLOCK to QUEUED_RWLOCKS
locking/pvqspinlock: Rename QUEUED_SPINLOCK to QUEUED_SPINLOCKS
locking/pvqspinlock: Replace xchg() by the more descriptive set_mb()
locking/pvqspinlock, x86: Enable PV qspinlock for Xen
locking/pvqspinlock, x86: Enable PV qspinlock for KVM
locking/pvqspinlock, x86: Implement the paravirt qspinlock call patching
locking/pvqspinlock: Implement simple paravirt support for the qspinlock
locking/qspinlock: Revert to test-and-set on hypervisors
locking/qspinlock: Use a simple write to grab the lock
locking/qspinlock: Optimize for smaller NR_CPUS
locking/qspinlock: Extract out code snippets for the next patch
locking/qspinlock: Add pending bit
...
Linus Torvalds [Mon, 22 Jun 2015 21:01:01 +0000 (14:01 -0700)]
Merge branch 'core-rcu-for-linus' of git://git./linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
- Continued initialization/Kconfig updates: hide most Kconfig options
from unsuspecting users.
There's now a single high level configuration option:
*
* RCU Subsystem
*
Make expert-level adjustments to RCU configuration (RCU_EXPERT) [N/y/?] (NEW)
Which if answered in the negative, leaves us with a single
interactive configuration option:
Offload RCU callback processing from boot-selected CPUs (RCU_NOCB_CPU) [N/y/?] (NEW)
All the rest of the RCU options are configured automatically. Later
on we'll remove this single leftover configuration option as well.
- Remove all uses of RCU-protected array indexes: replace the
rcu_[access|dereference]_index_check() APIs with READ_ONCE() and
rcu_lockdep_assert()
- RCU CPU-hotplug cleanups
- Updates to Tiny RCU: a race fix and further code shrinkage.
- RCU torture-testing updates: fixes, speedups, cleanups and
documentation updates.
- Miscellaneous fixes
- Documentation updates
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
rcutorture: Allow repetition factors in Kconfig-fragment lists
rcutorture: Display "make oldconfig" errors
rcutorture: Update TREE_RCU-kconfig.txt
rcutorture: Make rcutorture scripts force RCU_EXPERT
rcutorture: Update configuration fragments for rcutree.rcu_fanout_exact
rcutorture: TASKS_RCU set directly, so don't explicitly set it
rcutorture: Test SRCU cleanup code path
rcutorture: Replace barriers with smp_store_release() and smp_load_acquire()
locktorture: Change longdelay_us to longdelay_ms
rcutorture: Allow negative values of nreaders to oversubscribe
rcutorture: Exchange TREE03 and TREE08 NR_CPUS, speed up CPU hotplug
rcutorture: Exchange TREE03 and TREE04 geometries
locktorture: fix deadlock in 'rw_lock_irq' type
rcu: Correctly handle non-empty Tiny RCU callback list with none ready
rcutorture: Test both RCU-sched and RCU-bh for Tiny RCU
rcu: Further shrink Tiny RCU by making empty functions static inlines
rcu: Conditionally compile RCU's eqs warnings
rcu: Remove prompt for RCU implementation
rcu: Make RCU able to tolerate undefined CONFIG_RCU_KTHREAD_PRIO
rcu: Make RCU able to tolerate undefined CONFIG_RCU_FANOUT_LEAF
...
Linus Torvalds [Mon, 22 Jun 2015 19:51:21 +0000 (12:51 -0700)]
Merge branch 'for-linus-1' of git://git./linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
"In this pile: pathname resolution rewrite.
- recursion in link_path_walk() is gone.
- nesting limits on symlinks are gone (the only limit remaining is
that the total amount of symlinks is no more than 40, no matter how
nested).
- "fast" (inline) symlinks are handled without leaving rcuwalk mode.
- stack footprint (independent of the nesting) is below kilobyte now,
about on par with what it used to be with one level of nested
symlinks and ~2.8 times lower than it used to be in the worst case.
- struct nameidata is entirely private to fs/namei.c now (not even
opaque pointers are being passed around).
- ->follow_link() and ->put_link() calling conventions had been
changed; all in-tree filesystems converted, out-of-tree should be
able to follow reasonably easily.
For out-of-tree conversions, see Documentation/filesystems/porting
for details (and in-tree filesystems for examples of conversion).
That has sat in -next since mid-May, seems to survive all testing
without regressions and merges clean with v4.1"
* 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (131 commits)
turn user_{path_at,path,lpath,path_dir}() into static inlines
namei: move saved_nd pointer into struct nameidata
inline user_path_create()
inline user_path_parent()
namei: trim do_last() arguments
namei: stash dfd and name into nameidata
namei: fold path_cleanup() into terminate_walk()
namei: saner calling conventions for filename_parentat()
namei: saner calling conventions for filename_create()
namei: shift nameidata down into filename_parentat()
namei: make filename_lookup() reject ERR_PTR() passed as name
namei: shift nameidata inside filename_lookup()
namei: move putname() call into filename_lookup()
namei: pass the struct path to store the result down into path_lookupat()
namei: uninline set_root{,_rcu}()
namei: be careful with mountpoint crossings in follow_dotdot_rcu()
Documentation: remove outdated information from automount-support.txt
get rid of assorted nameidata-related debris
lustre: kill unused helper
lustre: kill unused macro (LOOKUP_CONTINUE)
...
Dmitry Torokhov [Mon, 22 Jun 2015 16:26:29 +0000 (09:26 -0700)]
Merge branch 'next' into for-linus
Prepare first round of input updates for 4.2 merge window.
Jiri Kosina [Mon, 22 Jun 2015 14:26:56 +0000 (16:26 +0200)]
Merge branches 'for-4.1/upstream-fixes', 'for-4.2/kaslr' and 'for-4.2/upstream' into for-linus
Jiri Kosina [Mon, 22 Jun 2015 14:23:43 +0000 (16:23 +0200)]
Merge branches 'for-4.2/i2c-hid', 'for-4.2/lenovo', 'for-4.2/plantronics', 'for-4.2/rmi', 'for-4.2/sensor-hub', 'for-4.2/sjoy', 'for-4.2/sony' and 'for-4.2/wacom' into for-linus
Conflicts:
drivers/hid/wacom_wac.c
Jiri Kosina [Mon, 22 Jun 2015 14:22:06 +0000 (16:22 +0200)]
Merge branches 'for-4.1/upstream-fixes', 'for-4.2/upstream' and 'for-4.2/logitech' into for-linus
Conflicts:
drivers/hid/hid-logitech-hidpp.c
Rafael J. Wysocki [Mon, 22 Jun 2015 13:15:36 +0000 (15:15 +0200)]
Merge branch 'pm-cpuidle'
* pm-cpuidle:
cpuidle: powernv/pseries: Auto-promotion of snooze to deeper idle state
Shilpasri G Bhat [Thu, 18 Jun 2015 11:23:11 +0000 (16:53 +0530)]
cpuidle: powernv/pseries: Auto-promotion of snooze to deeper idle state
The idle cpus which stay in snooze for a long period can degrade the
perfomance of the sibling cpus. If the cpu stays in snooze for more
than target residency of the next available idle state, then exit from
snooze. This gives a chance to the cpuidle governor to re-evaluate the
last idle state of the cpu to promote it to deeper idle states.
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rafael J. Wysocki [Mon, 22 Jun 2015 12:40:28 +0000 (14:40 +0200)]
Merge branch 'pm-sleep'
* pm-sleep:
x86: Load __USER_DS into DS/ES after resume
Ingo Molnar [Mon, 22 Jun 2015 12:40:03 +0000 (14:40 +0200)]
x86: Load __USER_DS into DS/ES after resume
Srinivas Pandruvada reported a problem with system resume from
suspend-to-RAM on 32-bit x86 systems where the DS register of
the CPU is set to __KERNEL_DS instead of __USER_DS on return
to user space which cases a General Protection Fault to occur.
The issue is that DS is set to __KERNEL_DS by the ACPI resume code
path while the SYSEXIT path never reloads DS/ES. It assumes they
are still __USER_DS set at the SYSENTER time (Brian Gerst), so if
the return to user space happens to be through SYSEXIT, it will lead
to the reported GPF.
Fix the problem by setting the DS and ES registers to __USER_DS
as expected by the SYSEXIT path.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=61781
Link: http://marc.info/?l=linux-pm&m=143406648920385&w=2
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rafael J. Wysocki [Mon, 22 Jun 2015 12:23:44 +0000 (14:23 +0200)]
Merge branch 'pm-opp'
* pm-opp:
PM / OPP: Add binding for 'opp-suspend'
PM / OPP: Allow multiple OPP tables to be passed via DT
PM / OPP: Add new bindings to address shortcomings of existing bindings
Viresh Kumar [Mon, 22 Jun 2015 12:23:27 +0000 (14:23 +0200)]
PM / OPP: Add binding for 'opp-suspend'
On few platforms, for power efficiency, we want the device to be
configured for a specific OPP while we put the device in suspend state.
Add an optional property in operating-points-v2 bindings for that.
Suggested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Viresh Kumar [Mon, 22 Jun 2015 12:21:38 +0000 (14:21 +0200)]
PM / OPP: Allow multiple OPP tables to be passed via DT
On some platforms (Like Qualcomm's SoCs), it is not decided until
runtime on what OPPs to use. The OPP tables can be fixed at compile
time, but which table to use is found out only after reading some efuses
(sort of an prom) and knowing characteristics of the SoC.
To support such platform we need to pass multiple OPP tables per device
and hardware should be able to choose one and only one table out of
those.
Update operating-points-v2 bindings to support that.
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Viresh Kumar [Thu, 4 Jun 2015 16:20:31 +0000 (21:50 +0530)]
PM / OPP: Add new bindings to address shortcomings of existing bindings
Current OPP (Operating performance point) device tree bindings have been
insufficient due to the inflexible nature of the original bindings. Over
time, we have realized that Operating Performance Point definitions and
usage is varied depending on the SoC and a "single size (just frequency,
voltage) fits all" model which the original bindings attempted and
failed.
The proposed next generation of the bindings addresses by providing a
expandable binding for OPPs and introduces the following common
shortcomings seen with the original bindings:
- Getting clock/voltage/current rails sharing information between CPUs.
Shared by all cores vs independent clock per core vs shared clock per
cluster.
- Support for specifying current levels along with voltages.
- Support for multiple regulators.
- Support for turbo modes.
- Other per OPP settings: transition latencies, disabled status, etc.?
- Expandability of OPPs in future.
This patch introduces new bindings "operating-points-v2" to get these problems
solved. Refer to the bindings for more details.
We now have multiple versions of OPP binding and only one of them should
be used per device.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tomi Valkeinen [Mon, 22 Jun 2015 11:56:01 +0000 (14:56 +0300)]
Merge omapdss scaling fixes
Mika Westerberg [Tue, 9 Jun 2015 09:17:07 +0000 (12:17 +0300)]
mfd: lpc_ich: Assign subdevice ids automatically
Using -1 as platform device id means that the platform driver core will not
assign any id to the device (the device name will not have id at all). This
results problems on systems that have multiple PCHs (Platform Controller
HUBs) because all of them also include their own copy of LPC device.
All the subsequent device creations will fail because there already exists
platform device with the same name.
Fix this by passing PLATFORM_DEVID_AUTO as platform device id. This makes
the platform device core to allocate new ids automatically.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fabio Estevam [Sat, 16 May 2015 18:42:17 +0000 (15:42 -0300)]
mfd: si476x-i2c: Pass the IRQF_ONESHOT flag
Since commit
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fabio Estevam [Sat, 16 May 2015 18:42:16 +0000 (15:42 -0300)]
mfd: ab8500-gpadc: Pass the IRQF_ONESHOT flag
Since commit
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fabio Estevam [Sat, 16 May 2015 18:42:15 +0000 (15:42 -0300)]
mfd: ab8500-debugfs: Pass the IRQF_ONESHOT flag
Since commit
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fabio Estevam [Sat, 16 May 2015 18:42:14 +0000 (15:42 -0300)]
mfd: wm8350-core: Pass the IRQF_ONESHOT flag
Since commit
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fabio Estevam [Sat, 16 May 2015 18:42:13 +0000 (15:42 -0300)]
mfd: htc-i2cpld: Pass the IRQF_ONESHOT flag
Since commit
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fabio Estevam [Sat, 16 May 2015 18:42:12 +0000 (15:42 -0300)]
mfd: wm831x-auxadc: Pass the IRQF_ONESHOT flag
Since commit
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fabio Estevam [Sat, 16 May 2015 18:42:11 +0000 (15:42 -0300)]
mfd: mc13xxx-core: Pass the IRQF_ONESHOT flag
Since commit
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fabio Estevam [Sat, 16 May 2015 18:42:10 +0000 (15:42 -0300)]
mfd: twl4030-irq: Pass the IRQF_ONESHOT flag
Since commit
1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
So pass the IRQF_ONESHOT flag in this case.
The semantic patch that makes this change is available
in scripts/coccinelle/misc/irqf_oneshot.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Hongzhou Yang [Wed, 27 May 2015 09:10:35 +0000 (02:10 -0700)]
mfd: mt6397-core: Add GPIO sub-module support
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 25 May 2015 09:28:34 +0000 (10:28 +0100)]
mfd: arizona: Add convience defines for micd_rate/micd_bias_starttime
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Steve Twiss [Tue, 19 May 2015 10:32:45 +0000 (11:32 +0100)]
mfd: dt: Add bindings for DA9063 OnKey
Add device tree bindings for the DA9063 OnKey driver.
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Steve Twiss [Tue, 19 May 2015 10:32:45 +0000 (11:32 +0100)]
mfd: da9063: Add support for OnKey driver
Add MFD support for the DA9063 OnKey driver
The function da9063_clear_fault_log() is added to mitigate the case of a
hardware power-cut after a long-long OnKey press. Although there is no
software intervention in this case (by definition) such a shutdown would
cause persistent information within the DA9063 FAULT_LOG that would be
available during the next device restart.
Clearance of this persistent register must be completed after such a
hardware power-cut operation has happened so that the FAULT_LOG does not
continue with previous values. The clearance function has been added here
in the kernel driver because wiping the fault-log cannot be counted on
outside the Linux kernel.
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
[Lee: Removed 'key_power' for Dmitry to take through the Input Tree]
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Richard Fitzgerald [Wed, 13 May 2015 15:52:26 +0000 (16:52 +0100)]
mfd: arizona: Fix incorrect Makefile conditionals
The use of ifneq against 'n' to conditionally compile codec-specific
parts is wrong and was resulting in all the codec tables being built
even for deselected codecs.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Richard Fitzgerald [Wed, 13 May 2015 15:52:25 +0000 (16:52 +0100)]
mfd: arizona: Add stub for wm5102_patch()
For the WM5102 there is a dependency in the core code on wm5102_patch()
which only exists when CONFIG_MFD_WM5102 is defined. To avoid having
to sprinkle #ifdefs around the code it is given an alternative empty
stub version when CONFIG_MFD_WM5102 is deselected
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Lorenzo Pieralisi [Fri, 1 May 2015 09:41:10 +0000 (10:41 +0100)]
mfd: Check ACPI device companion before checking resources
Current code in mfd-core calls into ACPI to check resources even
on a system that booted with a DT (on kernels with both DT and ACPI
support compiled in). This triggers ACPI exceptions since we may
end up calling the ACPI interpreter when it has not been initialized:
"ACPI Exception: AE_BAD_PARAMETER, Thread
2064154624 could not acquire
Mutex [0x1] (
20150410/utmutex-285)"
This patch fixes the issues by adding a check for an ACPI companion
device before carrying out ACPI resources checks to avoid calling
the ACPI interpreter if the fwnode representing the device is an OF one.
Cc: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Richard Fitzgerald [Fri, 1 May 2015 15:15:19 +0000 (16:15 +0100)]
Documentation: Add WM8998/WM1814 device tree bindings
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Richard Fitzgerald [Fri, 1 May 2015 15:15:12 +0000 (16:15 +0100)]
mfd: arizona: Split INx_MODE into two fields
Later arizona silicon has the single/differential selector
in a different register, and IN1_MODE only selects between
analogue or digital. Prepare for this by splitting the
INx_MODE definition into two fields.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 11 May 2015 12:58:10 +0000 (13:58 +0100)]
mfd: wm5110: Add delay before releasing reset line
On the wm5110 it is important the reset line is held for slightly longer
to ensure the device starts up well. This patch adds a 5mS delay for
this.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 11 May 2015 12:58:09 +0000 (13:58 +0100)]
mfd: arizona: Add better support for system suspend
Allow the chip to completely power off if we enter runtime suspend and
there is no jack detection active. This is helpful for systems where
system suspend might remove the supplies to the CODEC, without informing
us. Note the powering off is done in runtime suspend rather than system
suspend, because we need to hold reset until the first time DCVDD is
powered anyway (which would be in runtime resume), and we might as well
save the extra power.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 11 May 2015 12:58:08 +0000 (13:58 +0100)]
mfd: wm5110: Set DCVDD voltage to 1.175V before entering sleep mode
The low power sleep mode on wm5110 requires that the LDO1 regulator be
set to 1.175V prior to entering sleep, then returned to 1.2V after
exiting sleep mode. This patch apply these regulator settings.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 11 May 2015 12:58:06 +0000 (13:58 +0100)]
mfd: wm5110: Add register patch required for low power sleep
Some register settings must be applied before the first time low power
sleep mode is entered on the wm5110 to ensure optimium performance.
These settings require SYSCLK to be enabled whilst they are being
applied. This patch applies the settings using the recently factored out
boot time SYSCLK functionality.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 11 May 2015 12:58:05 +0000 (13:58 +0100)]
mfd: arizona: Factor out SYSCLK enable from wm5102 hardware patch
wm5102 applies a custom hardware boot sequence, for this the SYSCLK
needs to be enabled. This patch factors out the code that enables
SYSCLK for this sequence such that it can be used for other boot time
operations that require SYSCLK.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 11 May 2015 12:58:04 +0000 (13:58 +0100)]
mfd: arizona: Fix formating/style issues in arizona_apply_hardware_patch
In preparation for some refactoring fixup some minor style, formating
and code clarity issues.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 11 May 2015 12:58:03 +0000 (13:58 +0100)]
mfd: wm5102: Ensure we always boot the device fully
The wm5102 uses a custom boot sequence and the standard boot sequence is
disabled. However, the standard boot sequence must be run at least once
after a cold boot (caused by either a hard reset or removal of AVDD).
Unfortunately the register WRITE_SEQUENCER_CTRL_3 is not affected by the
hardware reset. This means if the device has been previously booted but
the AVDD supply has never been removed, arizona_dev_init will reset the
chip but the boot sequence will not run, which can cause numerous
problems. The solution is to manually clear this register and then boot
the chip again, which is what this patch does.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Charles Keepax [Mon, 11 May 2015 12:58:02 +0000 (13:58 +0100)]
mfd: arizona: Factor out hard reset into helper functions
This patch adds functions for enabling and disabling the physical reset
line. This will be helpful in future refactoring.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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