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We currently use the device tree update code in the kernel after resuming
from a suspend operation to re-sync the kernels view of the device tree with
that of the hypervisor. The code as it stands is not endian safe as it relies
on parsing buffers returned by RTAS calls that thusly contains data in big
endian format.
This patch annotates variables and structure members with __be types as well
as performing necessary byte swaps to cpu endian for data that needs to be
parsed.
Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Cc: Cyril Bur <cyrilbur@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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There's a new variant of POWER8 coming called "POWER8 with NVLink". The
core is identical to POWER8 but unfortunately they strapped it with a
different PVR, so we need to add an explicit entry for it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Since we can now use hypervisor doorbells for host IPIs, this makes
sure we clear the host IPI flag when taking a doorbell interrupt, and
clears any pending doorbell IPI in pnv_smp_cpu_kill_self() (as we
already do for IPIs sent via the XICS interrupt controller). Otherwise
if there did happen to be a leftover pending doorbell interrupt for
an offline CPU thread for any reason, it would prevent that thread from
going into a power-saving mode; it would instead keep waking up because
of the interrupt.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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With the increase in number of CPUs calls to functions that dump
output to console (e.g., arch_trigger_all_cpu_backtrace) can take
a long time to complete. If IRQs are disabled eventually the NMI
watchdog kicks in and creates more havoc. Avoid by telling the NMI
watchdog everything is ok.
Signed-off-by: David Ahern <david.ahern@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The M7 processor has a different hypervisor group id and different PCR fast
trap values. PIC read/write functions and PCR bit fields are the same as
the T4 so those are reused.
Signed-off-by: David Ahern <david.ahern@oracle.com>
Acked-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently perf-stat (aka, counting mode) does not work:
$ perf stat ls
...
Performance counter stats for 'ls':
1.585665 task-clock (msec) # 0.580 CPUs utilized
24 context-switches # 0.015 M/sec
0 cpu-migrations # 0.000 K/sec
86 page-faults # 0.054 M/sec
<not supported> cycles
<not supported> stalled-cycles-frontend
<not supported> stalled-cycles-backend
<not supported> instructions
<not supported> branches
<not supported> branch-misses
0.002735100 seconds time elapsed
The reason is that state is never reset (stays with PERF_HES_UPTODATE set).
Add a call to sparc_pmu_enable_event during the added_event handling.
Clean up the encoding since pmu_start calls sparc_pmu_enable_event which
does the same. Passing PERF_EF_RELOAD to sparc_pmu_start means the call
to sparc_perf_event_set_period can be removed as well.
With this patch:
$ perf stat ls
...
Performance counter stats for 'ls':
1.552890 task-clock (msec) # 0.552 CPUs utilized
24 context-switches # 0.015 M/sec
0 cpu-migrations # 0.000 K/sec
86 page-faults # 0.055 M/sec
5,748,997 cycles # 3.702 GHz
<not supported> stalled-cycles-frontend:HG
<not supported> stalled-cycles-backend:HG
1,684,362 instructions:HG # 0.29 insns per cycle
295,133 branches:HG # 190.054 M/sec
28,007 branch-misses:HG # 9.49% of all branches
0.002815665 seconds time elapsed
Signed-off-by: David Ahern <david.ahern@oracle.com>
Acked-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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perf_pmu_disable is called by core perf code before pmu->del and the
enable function is called by core perf code afterwards. No need to
call again within sparc_pmu_del.
Ditto for pmu->add and sparc_pmu_add.
Signed-off-by: David Ahern <david.ahern@oracle.com>
Acked-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"An update to Synaptics driver that makes it usable with the 2015
lineup from Lenovo"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Revert "Input: synaptics - use dmax in input_mt_assign_slots"
Input: synaptics - remove X250 from the topbuttonpad list
Input: synaptics - remove X1 Carbon 3rd gen from the topbuttonpad list
Input: synaptics - re-route tracksticks buttons on the Lenovo 2015 series
Input: synaptics - remove TOPBUTTONPAD property for Lenovos 2015
Input: synaptics - retrieve the extended capabilities in query $10
Input: synaptics - do not retrieve the board id on old firmwares
Input: synaptics - handle spurious release of trackstick buttons
Input: synaptics - fix middle button on Lenovo 2015 products
Input: synaptics - skip quirks when post-2013 dimensions
Input: synaptics - support min/max board id in min_max_pnpid_table
Input: synaptics - remove obsolete min/max quirk for X240
Input: synaptics - query min dimensions for fw v8.1
Input: synaptics - log queried and quirked dimension values
Input: synaptics - split synaptics_resolution(), query first
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
"This fixes bugs in zero-copy splice to the fuse device"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: explicitly set /dev/fuse file's private_data
fuse: set stolen page uptodate
fuse: notify: don't move pages
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"This fixes minor issues with the multi-layer update in v4.0"
* 'overlayfs-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: upper fs should not be R/O
ovl: check lowerdir amount for non-upper mount
ovl: print error message for invalid mount options
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Pull MMC fix from Ulf Hansson:
"MMC core: fix error path in mmc_pwrseq_simple_alloc()"
* tag 'mmc-v4.0-rc4' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: pwrseq_simple: fix error path in mmc_pwrseq_simple_alloc
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here is a slew of pin control fixes I've accumulated for the v4.0
kernel. Nothing special, just driver fixes (mainly embedded Intel it
seems) and a misunderstanding regarding the stub functions was
reverted:
- Fix up consumer return values on pin control stubs.
- Four patches fixing up the interrupt handling and sleep context
save in the Baytrail driver.
- Make default output directions work properly in the Cherryview
driver.
- Fix interrupt locking in the AT91 driver.
- Fix setting interrupt generating lines as input in the sunxi
driver"
* tag 'pinctrl-v4.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sun4i: GPIOs configured as irq must be set to input before reading
pinctrl: at91: move lock/unlock_as_irq calls into request/release
pinctrl: update direction_output function of cherryview driver
pinctrl: baytrail: Save pin context over system sleep
pinctrl: baytrail: Rework interrupt handling
pinctrl: baytrail: Clear interrupt triggering from pins that are in GPIO mode
pinctrl: baytrail: Relax GPIO request rules
Revert "pinctrl: consumer: use correct retval for placeholder functions"
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git://git.rocketboards.org/linux-socfpga-next
Pull two arch/nios2 fixes from Ley Foon Tan:
- Remove ucontext.h from exported arch headers
- nios2: mm: do not invoke OOM killer on kernel fault OOM
* tag 'nios2-fixes-v4.0-rc5' of git://git.rocketboards.org/linux-socfpga-next:
nios2: mm: do not invoke OOM killer on kernel fault OOM
nios2: Remove ucontext.h from exported arch headers
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Pull IDE fix from David Miller:
"Just one fix to convert a by-hand conversion of jiffies to msecs, from
Nicholas McGuire"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
ide_tape: convert jiffies with jiffies_to_msecs
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Pull sparc fixes from David Miller:
1) Some command cases of semtimedop() not even handled due to miscoded
comparison on sparc64. From Rob Gardner.
2) Due to two bugs, /proc/kcore wan't working properly on sparc.
3) Make sure fatal traps stop all running cpus, from Dave Kleikamp.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Fix /proc/kcore
sparc: semtimedop() unreachable due to comparison error
sparc: io_64.h: Replace io function-link macros
sparc64: fatal trap should stop all cpus
arch: sparc: kernel: starfire.c: Remove unused function
arch: sparc: kernel: traps_64.c: Remove some unused functions
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This patch fixes a NULL pointer dereference when enabling regmap event
tracing in the presence of a syscon regmap, introduced by commit bdb0066df96e
("mfd: syscon: Decouple syscon interface from platform devices").
That patch introduced syscon regmaps that have their dev field set to NULL.
The regmap trace events expect it to point to a valid struct device and feed
it to dev_name():
$ echo 1 > /sys/kernel/debug/tracing/events/regmap/enable
Unable to handle kernel NULL pointer dereference at virtual address 0000002c
pgd = 80004000
[0000002c] *pgd=00000000
Internal error: Oops: 17 [#1] SMP ARM
Modules linked in: coda videobuf2_vmalloc
CPU: 0 PID: 304 Comm: kworker/0:2 Not tainted 4.0.0-rc2+ #9197
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
Workqueue: events_freezable thermal_zone_device_check
task: 9f25a200 ti: 9f1ee000 task.ti: 9f1ee000
PC is at ftrace_raw_event_regmap_block+0x3c/0xe4
LR is at _regmap_raw_read+0x1bc/0x1cc
pc : [<803636e8>] lr : [<80365f2c>] psr: 600f0093
sp : 9f1efd78 ip : 9f1efdb8 fp : 9f1efdb4
r10: 00000004 r9 : 00000001 r8 : 00000001
r7 : 00000180 r6 : 00000000 r5 : 9f00e3c0 r4 : 00000003
r3 : 00000001 r2 : 00000180 r1 : 00000000 r0 : 9f00e3c0
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 10c5387d Table: 2d91004a DAC: 00000015
Process kworker/0:2 (pid: 304, stack limit = 0x9f1ee210)
Stack: (0x9f1efd78 to 0x9f1f0000)
fd60: 9f1efda4 9f1efd88
fd80: 800708c0 805f9510 80927140 800f0013 9f1fc800 9eb2f490 00000000 00000180
fda0: 808e3840 00000001 9f1efdfc 9f1efdb8 80365f2c 803636b8 805f8958 800708e0
fdc0: a00f0013 803636ac 9f16de00 00000180 80927140 9f1fc800 9f1fc800 9f1efe6c
fde0: 9f1efe6c 9f732400 00000000 00000000 9f1efe1c 9f1efe00 80365f70 80365d7c
fe00: 80365f3c 9f1fc800 9f1fc800 00000180 9f1efe44 9f1efe20 803656a4 80365f48
fe20: 9f1fc800 00000180 9f1efe6c 9f1efe6c 9f732400 00000000 9f1efe64 9f1efe48
fe40: 803657bc 80365634 00000001 9e95f910 9f1fc800 9f1efeb4 9f1efe8c 9f1efe68
fe60: 80452ac0 80365778 9f1efe8c 9f1efe78 9e93d400 9e93d5e8 9f1efeb4 9f72ef40
fe80: 9f1efeac 9f1efe90 8044e11c 80452998 8045298c 9e93d608 9e93d400 808e1978
fea0: 9f1efecc 9f1efeb0 8044fd14 8044e0d0 ffffffff 9f25a200 9e93d608 9e481380
fec0: 9f1efedc 9f1efed0 8044fde8 8044fcec 9f1eff1c 9f1efee0 80038d50 8044fdd8
fee0: 9f1ee020 9f72ef40 9e481398 00000000 00000008 9f72ef54 9f1ee020 9f72ef40
ff00: 9e481398 9e481380 00000008 9f72ef40 9f1eff5c 9f1eff20 80039754 80038bfc
ff20: 00000000 9e481380 80894100 808e1662 00000000 9e4f2ec0 00000000 9e481380
ff40: 800396f8 00000000 00000000 00000000 9f1effac 9f1eff60 8003e020 80039704
ff60: ffffffff 00000000 ffffffff 9e481380 00000000 00000000 9f1eff78 9f1eff78
ff80: 00000000 00000000 9f1eff88 9f1eff88 9e4f2ec0 8003df30 00000000 00000000
ffa0: 00000000 9f1effb0 8000eb60 8003df3c 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffffffff ffffffff
Backtrace:
[<803636ac>] (ftrace_raw_event_regmap_block) from [<80365f2c>] (_regmap_raw_read+0x1bc/0x1cc)
r9:00000001 r8:808e3840 r7:00000180 r6:00000000 r5:9eb2f490 r4:9f1fc800
[<80365d70>] (_regmap_raw_read) from [<80365f70>] (_regmap_bus_read+0x34/0x6c)
r10:00000000 r9:00000000 r8:9f732400 r7:9f1efe6c r6:9f1efe6c r5:9f1fc800
r4:9f1fc800
[<80365f3c>] (_regmap_bus_read) from [<803656a4>] (_regmap_read+0x7c/0x144)
r6:00000180 r5:9f1fc800 r4:9f1fc800 r3:80365f3c
[<80365628>] (_regmap_read) from [<803657bc>] (regmap_read+0x50/0x70)
r9:00000000 r8:9f732400 r7:9f1efe6c r6:9f1efe6c r5:00000180 r4:9f1fc800
[<8036576c>] (regmap_read) from [<80452ac0>] (imx_get_temp+0x134/0x1a4)
r6:9f1efeb4 r5:9f1fc800 r4:9e95f910 r3:00000001
[<8045298c>] (imx_get_temp) from [<8044e11c>] (thermal_zone_get_temp+0x58/0x74)
r7:9f72ef40 r6:9f1efeb4 r5:9e93d5e8 r4:9e93d400
[<8044e0c4>] (thermal_zone_get_temp) from [<8044fd14>] (thermal_zone_device_update+0x34/0xec)
r6:808e1978 r5:9e93d400 r4:9e93d608 r3:8045298c
[<8044fce0>] (thermal_zone_device_update) from [<8044fde8>] (thermal_zone_device_check+0x1c/0x20)
r5:9e481380 r4:9e93d608
[<8044fdcc>] (thermal_zone_device_check) from [<80038d50>] (process_one_work+0x160/0x3d4)
[<80038bf0>] (process_one_work) from [<80039754>] (worker_thread+0x5c/0x4f4)
r10:9f72ef40 r9:00000008 r8:9e481380 r7:9e481398 r6:9f72ef40 r5:9f1ee020
r4:9f72ef54
[<800396f8>] (worker_thread) from [<8003e020>] (kthread+0xf0/0x108)
r10:00000000 r9:00000000 r8:00000000 r7:800396f8 r6:9e481380 r5:00000000
r4:9e4f2ec0
[<8003df30>] (kthread) from [<8000eb60>] (ret_from_fork+0x14/0x34)
r7:00000000 r6:00000000 r5:8003df30 r4:9e4f2ec0
Code: e3140040 1a00001a e3140020 1a000016 (e596002c)
---[ end trace 193c15c2494ec960 ]---
Fixes: bdb0066df96e (mfd: syscon: Decouple syscon interface from platform devices)
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
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Due to a merge error when creating c5c707f9 ("nfsd: implement pNFS
layout recalls"), we recursively call nfsd4_cb_layout_fail from itself,
leading to stack overflows.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Fixes: c5c707f9 ("nfsd: implement pNFS layout recalls")
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
fs/nfsd/nfs4layouts.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 3c1bfa1..1028a06 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -587,8 +587,6 @@ nfsd4_cb_layout_fail(struct nfs4_layout_stateid *ls)
rpc_ntop((struct sockaddr *)&clp->cl_addr, addr_str, sizeof(addr_str));
- nfsd4_cb_layout_fail(ls);
-
printk(KERN_WARNING
"nfsd: client %s failed to respond to layout recall. "
" Fencing..\n", addr_str);
--
1.9.1
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Pull networking fixes from David Miller:
1) Fix packet header offset calculation in _decode_session6(), from
Hajime Tazaki.
2) Fix route leak in error paths of xfrm_lookup(), from Huaibin Wang.
3) Be sure to clear state properly when scans fail in iwlwifi mvm code,
from Luciano Coelho.
4) iwlwifi tries to stop scans that aren't actually running, also from
Luciano Coelho.
5) mac80211 should drop mesh frames that are not encrypted, fix from
Bob Copeland.
6) Add new device ID to b43 wireless driver for BCM432228 chips, from
Rafał Miłecki.
7) Fix accidental addition of members after variable sized array in
struct tc_u_hnode, from WANG Cong.
8) Don't re-enable interrupts until after we call napi_complete() in
ibmveth and WIZnet drivers, frm Yongbae Park.
9) Fix regression in vlan tag handling of fec driver, from Fugang Duan.
10) If a network namespace change fails during rtnl_newlink(), we don't
unwind the device registry properly.
11) Fix two TCP regressions, from Neal Cardwell:
- Don't allow snd_cwnd_cnt to accumulate huge values due to missing
test in tcp_cong_avoid_ai().
- Restore CUBIC back to advancing cwnd by 1.5x packets per RTT.
12) Fix performance regression in xne-netback involving push TX
notifications, from David Vrabel.
13) __skb_tstamp_tx() can be called with a NULL sk pointer, do not
dereference blindly. From Willem de Bruijn.
14) Fix potential stack overflow in RDS protocol stack, from Arnd
Bergmann.
15) VXLAN_VID_MASK used incorrectly in new remote checksum offload
support of VXLAN driver. Fix from Alexey Kodanev.
16) Fix too small netlink SKB allocation in inet_diag layer, from Eric
Dumazet.
17) ieee80211_check_combinations() does not count interfaces correctly,
from Andrei Otcheretianski.
18) Hardware feature determination in bxn2x driver references a piece of
software state that actually isn't initialized yet, fix from Michal
Schmidt.
19) inet_csk_wait_for_connect() needs a sched_annotate_sleep()
annoation, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (56 commits)
Revert "net: cx82310_eth: use common match macro"
net/mlx4_en: Set statistics bitmap at port init
IB/mlx4: Saturate RoCE port PMA counters in case of overflow
net/mlx4_en: Fix off-by-one in ethtool statistics display
IB/mlx4: Verify net device validity on port change event
act_bpf: allow non-default TC_ACT opcodes as BPF exec outcome
Revert "smc91x: retrieve IRQ and trigger flags in a modern way"
inet: Clean up inet_csk_wait_for_connect() vs. might_sleep()
ip6_tunnel: fix error code when tunnel exists
netdevice.h: fix ndo_bridge_* comments
bnx2x: fix encapsulation features on 57710/57711
mac80211: ignore CSA to same channel
nl80211: ignore HT/VHT capabilities without QoS/WMM
mac80211: ask for ECSA IE to be considered for beacon parse CRC
mac80211: count interfaces correctly for combination checks
isdn: icn: use strlcpy() when parsing setup options
rxrpc: bogus MSG_PEEK test in rxrpc_recvmsg()
caif: fix MSG_OOB test in caif_seqpkt_recvmsg()
bridge: reset bridge mtu after deleting an interface
can: kvaser_usb: Fix tx queue start/stop race conditions
...
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SAS controller has its own tag allocation, which doesn't directly match to ATA
tag, so SAS and SATA have different code path for ata tags. Originally we use
port->scsi_host (98bd4be1) to destinguish SAS controller, but libsas set
->scsi_host too, so we can't use it for the destinguish, we add a new flag for
this purpose.
Without this patch, the following oops can happen because scsi-mq uses
a host-wide tag map shared among all devices with some integer tag
values >= ATA_MAX_QUEUE. These unexpectedly high tag values cause
__ata_qc_from_tag() to return NULL, which is then dereferenced in
ata_qc_new_init().
BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
IP: [<ffffffff804fd46e>] ata_qc_new_init+0x3e/0x120
PGD 32adf0067 PUD 32adf1067 PMD 0
Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
Modules linked in: iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi igb
i2c_algo_bit ptp pps_core pm80xx libsas scsi_transport_sas sg coretemp
eeprom w83795 i2c_i801
CPU: 4 PID: 1450 Comm: cydiskbench Not tainted 4.0.0-rc3 #1
Hardware name: Supermicro X8DTH-i/6/iF/6F/X8DTH, BIOS 2.1b 05/04/12
task: ffff8800ba86d500 ti: ffff88032a064000 task.ti: ffff88032a064000
RIP: 0010:[<ffffffff804fd46e>] [<ffffffff804fd46e>] ata_qc_new_init+0x3e/0x120
RSP: 0018:ffff88032a067858 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8800ba0d2230 RCX: 000000000000002a
RDX: ffffffff80505ae0 RSI: 0000000000000020 RDI: ffff8800ba0d2230
RBP: ffff88032a067868 R08: 0000000000000201 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800ba0d0000
R13: ffff8800ba0d2230 R14: ffffffff80505ae0 R15: ffff8800ba0d0000
FS: 0000000041223950(0063) GS:ffff88033e480000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000058 CR3: 000000032a0a3000 CR4: 00000000000006e0
Stack:
ffff880329eee758 ffff880329eee758 ffff88032a0678a8 ffffffff80502dad
ffff8800ba167978 ffff880329eee758 ffff88032bf9c520 ffff8800ba167978
ffff88032bf9c520 ffff88032bf9a290 ffff88032a0678b8 ffffffff80506909
Call Trace:
[<ffffffff80502dad>] ata_scsi_translate+0x3d/0x1b0
[<ffffffff80506909>] ata_sas_queuecmd+0x149/0x2a0
[<ffffffffa0046650>] sas_queuecommand+0xa0/0x1f0 [libsas]
[<ffffffff804ea544>] scsi_dispatch_cmd+0xd4/0x1a0
[<ffffffff804eb50f>] scsi_queue_rq+0x66f/0x7f0
[<ffffffff803e5098>] __blk_mq_run_hw_queue+0x208/0x3f0
[<ffffffff803e54b8>] blk_mq_run_hw_queue+0x88/0xc0
[<ffffffff803e5c74>] blk_mq_insert_request+0xc4/0x130
[<ffffffff803e0b63>] blk_execute_rq_nowait+0x73/0x160
[<ffffffffa0023fca>] sg_common_write+0x3da/0x720 [sg]
[<ffffffffa0025100>] sg_new_write+0x250/0x360 [sg]
[<ffffffffa0025feb>] sg_write+0x13b/0x450 [sg]
[<ffffffff8032ec91>] vfs_write+0xd1/0x1b0
[<ffffffff8032ee54>] SyS_write+0x54/0xc0
[<ffffffff80689932>] system_call_fastpath+0x12/0x17
tj: updated description.
Fixes: 12cb5ce101ab ("libata: use blk taging")
Reported-and-tested-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Several tests that rely on implicit build rules fail to build,
when invoked from the main Makefile kselftest target. These
failures are due to --no-builtin-rules and --no-builtin-variables
options set in the inherited MAKEFLAGS.
--no-builtin-rules eliminates the use of built-in implicit rules
and --no-builtin-variables is for not defining built-in variables.
These two options override the use of implicit rules resulting in
build failures. In addition, inherited LDFLAGS result in build
failures and there is no need to define LDFLAGS. Clear LDFLAGS
and MAKEFLAG when make is invoked from the main Makefile kselftest
target. Fixing this at selftests Makefile avoids changing the main
Makefile and keeps this change self contained at selftests level.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
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The socfpga.dtsi currently has the wrong interrupt number set for SPI master 1
Trying to use the master without this change results in the kernel boot
process waiting forever for an interrupt that will never occur while
attempting to probe any slave devices configured in the device tree as being
under SPI master 1.
The change works for the Cyclone V, and according to the Arria 5 handbook
should be good there too.
Signed-off-by: Mark James <maj@jamers.net>
Acked-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
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The misc subsystem (which is used for /dev/fuse) initializes private_data to
point to the misc device when a driver has registered a custom open file
operation, and initializes it to NULL when a custom open file operation has
*not* been provided.
This subtle quirk is confusing, to the point where kernel code registers
*empty* file open operations to have private_data point to the misc device
structure. And it leads to bugs, where the addition or removal of a custom open
file operation surprisingly changes the initial contents of a file's
private_data structure.
So to simplify things in the misc subsystem, a patch [1] has been proposed to
*always* set the private_data to point to the misc device, instead of only
doing this when a custom open file operation has been registered.
But before this patch can be applied we need to modify drivers that make the
assumption that a misc device file's private_data is initialized to NULL
because they didn't register a custom open file operation, so they don't rely
on this assumption anymore. FUSE uses private_data to store the fuse_conn and
errors out if this is not initialized to NULL at mount time.
Hence, we now set a file's private_data to NULL explicitly, to be independent
of whatever value the misc subsystem initializes it to by default.
[1] https://lkml.org/lkml/2014/12/4/939
Reported-by: Giedrius Statkevicius <giedriuswork@gmail.com>
Reported-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Tom Van Braeckel <tomvanbraeckel@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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This reverts commit 2fa645cb2703d9b3786d850db815414dfeefa51d.
The assumption that at least 1 preferred console will be registered
when the stdout-path property is set is invalid, which can result
in _no_ consoles.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Commit 106937e8ccdc ("of: fix handling of '/' in options for
of_find_node_by_path()") caused a regression in OF handling of
stdout-path. While it fixes some cases which have '/' after the ':', it
breaks cases where there is more than one '/' *before* the ':'.
For example, it breaks this boot string
stdout-path = "/rdb/serial@f040ab00:115200";
So rather than doing sequentialized checks (first for '/', then for ':';
or vice versa), to get the correct behavior we need to check for the
first occurrence of either one of them.
It so happens that the handy strcspn() helper can do just that.
Fixes: 106937e8ccdc ("of: fix handling of '/' in options for of_find_node_by_path()")
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: stable@vger.kernel.org # 3.19
Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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There were regressions seen with commit 106937e8ccdc ("of: fix handling
of '/' in options for of_find_node_by_path()"), where we couldn't handle
extra '/' before the ':'. Let's test for this now.
Confirmed that this test fails without the previous patch and passes
when patched. All other tests pass.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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The error code paths that require cleanup use a goto to jump to the
cleanup code and return an error code. However, the error code variable
res, which is initialized to -EINVAL when declared, is then overwritten
with the return value of of_parse_phandle_with_args(), and reused as the
return code from of_irq_parse_one(). This leads to an undetermined error
being returned instead of the expected -EINVAL value. Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: stable@vger.kernel.org # 3.13+
Signed-off-by: Rob Herring <robh@kernel.org>
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The current error-path code (when gpiod_get_index() reports
an error) can never free pwrseq->reset_gpios[0], but might
try to tree pwrseq->reset_gpios[-1], which has unfortunate
consequences.
Signed-off-by: NeilBrown <neil@brown.name>
Fixes: 934f1f48330ed695927a51fa068dc5d673f2da19
Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reported-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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Since fab4085 ("netfilter: log: nf_log_packet() as real unified
interface"), the loginfo structure that is passed to nf_log_packet() is
used to explicitly indicate the logger type you want to use.
This is a problem for people tracing rules through nfnetlink_log since
packets are always routed to the NF_LOG_TYPE logger after the
aforementioned patch.
We can fix this by removing the trace loginfo structures, but that still
changes the log level from 4 to 5 for tracing messages and there may be
someone relying on this outthere. So let's just introduce a new
nf_log_trace() function that restores the former behaviour.
Reported-by: Markus Kötter <koetter@rrzn.uni-hannover.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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into drm-fixes
single radeon fix.
* 'drm-fixes-4.0' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: drop ttm two ended allocation
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Some urgent regression fixes to booting failures Exynos DRM occured.
Summary:
- Fix two urgent null pointer dereference bugs in case of enabling
or disabling IOMMU. There was two cases to these issues.
One is that plane->crtc is accessed by exynos_disable_plane()
when device tree binding is broken so device driver tries
to release, which means that the mode set operation isn't invoked yet
so plane->crtc is still NULL and exynos_disable_plane() will access
NULL pointer. This issue is fixed by checking if the plane->crtc
is NULL or not in exynos_disable_plane()
Other is that fimd_wait_for_vblank() is called to avoid from page fault
with IOMMU before the ctx object is created. At this time,
fimd_wait_for_vblank() tries to access ctx->crtc but the ctx->crtc
is still NULL because exynos_drm_crtc_create() isn't called yet.
This issue is fixed by creating a crtc object and setting it to
ctx->crtc prior to fimd_wait_for_vblank() call.
For more details, you can refer to below an e-mail thread,
http://www.spinics.net/lists/linux-samsung-soc/msg42436.html
- Remove unnecessary file not used and fix trivial issues.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: fix the initialization order in FIMD
drm/exynos: fix typo config name correctly.
drm/exynos: Check for NULL dereference of crtc
drm/exynos: IS_ERR() vs NULL bug
drm/exynos: remove unused files
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Use jiffies_to_msecs for converting jiffies as it handles all of the corner
cases reliably and also helps readability. The printk format is fixed up
as jiffies_to_msecs returns unsigned int not unsigned long.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 11ad714b98f6d9ca0067568442afe3e70eb94845 because
it breaks cx82310_eth.
The custom USB_DEVICE_CLASS macro matches
bDeviceClass, bDeviceSubClass and bDeviceProtocol
but the common USB_DEVICE_AND_INTERFACE_INFO matches
bInterfaceClass, bInterfaceSubClass and bInterfaceProtocol instead, which are
not specified.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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/proc/kcore investigates the "System RAM" elements in /proc/iomem to
initialize it's memory tables. Therefore we have to register them
before it tries to do so. kcore uses device_initcall() so let's
use arch_initcall() for the registry.
Also we need ARCH_PROC_KCORE_TEXT to get the virtual addresses of
the kernel image correct.
Reported-by: David Ahern <david.ahern@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When allocating from the reserved tags pool, bt_get() is called with
a NULL hctx. If all tags are in use, the hw queue is kicked to push
out any pending IO, potentially freeing tags, and tag allocation is
retried. The problem is that blk_mq_run_hw_queue() doesn't check for
a NULL hctx. So we avoid it with a simple NULL hctx test.
Tested by hammering mtip32xx with concurrent smartctl/hdparm.
Signed-off-by: Sam Bradshaw <sbradshaw@micron.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Fixes: b32232073e80 ("blk-mq: fix hang in bt_get()")
Cc: stable@kernel.org
Added appropriate comment.
Signed-off-by: Jens Axboe <axboe@fb.com>
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Commit 7800064ba507 ("ARM: dts: Add basic dm816x device tree
configuration") added basic devices for dm816x, but I was not able
to test the GPIO interrupts earlier until I found some suitable pins
to test with. We can mux the MMC card detect and write protect pins
from SD_SDCD and SD_SDWP mode to use a normal GPIO interrupts that
are also suitable for the MMC subsystem.
This turned out several issues that need to be fixed:
- I set the GPIO type wrong to be compatible with omap3 instead
of omap4. The GPIO controller on dm816x has EOI interrupt
register like omap4 and am335x.
- I got the GPIO interrupt numbers wrong as each bank has two
and we only use one. They need to be set up the same way as
on am335x.
- The gpio banks are missing interrupt controller related
properties.
With these changes the GPIO interrupts can be used with the
MMC card detect pin, so let's wire that up. Let's also mux all
the MMC lines for completeness while at it.
For the first GPIO bank I tested using GPMC lines temporarily
muxed to GPIOs on the dip switch 10.
Cc: Brian Hutchinson <b.hutchman@gmail.com>
Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Now that we don't have hwmod entry for pcie PHY remove the
ti,hwmod property from PCIE PHY's. Otherwise we will get:
platform 4a094000.pciephy: Cannot lookup hwmod 'pcie1-phy'
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Or Gerlitz says:
====================
mlx4 driver fixes for 4.0-rc
Just few small fixes for the 4.0 rc cycle.
The fix from Moni addresses an issue from 4.0-rc1 so we
just need it for net.
Eran's fix for off-by-one should go to 3.19.y too.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Port statistics bitmap will now be initialized at port init. Even before
starting the port, statistics are visible to the user and must be properly masked.
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For RoCE ports, we set the u32 PMA values based on u64 HCA counters. In case of
overflow, according to the IB spec, we have to saturate a counter to its
max value, do that.
Fixes: c37791349cc7 ('IB/mlx4: Support PMA counters for IBoE')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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NUM_PORT_STATS was 9 instead of 10, which caused off-by-one bug when
displaying the statistics starting from tx_chksum_offload in ethtool.
Fixes: f8c6455bb04b ('net/mlx4_en: Extend checksum offloading by CHECKSUM COMPLETE')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Processing an event is done in a different context from the one when
the event was dispatched. This requires a check that the slave
net device is still valid when the event is being processed. The check is done
under the iboe lock which ensure correctness.
Fixes: a57500903093 ('IB/mlx4: Add port aggregation support')
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This is a collection of many small fixes. Most of fixes are for ASoC
drivers, including the fixes of wrong field usages for boolean kctls.
In addition, there is a fix in ASoC core for adding proper locks for
component lists, and a fix for a HD-audio regression by the previous
mono channel fix"
* tag 'sound-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (24 commits)
ALSA: hda - Treat stereo-to-mono mix properly
ASoC: wm9713: Fix wrong value references for boolean kctl
ASoC: wm9712: Fix wrong value references for boolean kctl
ASoC: wm8960: Fix wrong value references for boolean kctl
ASoC: wm8955: Fix wrong value references for boolean kctl
ASoC: wm8904: Fix wrong value references for boolean kctl
ASoC: wm8903: Fix wrong value references for boolean kctl
ASoC: wm8731: Fix wrong value references for boolean kctl
ASoC: wm2000: Fix wrong value references for boolean kctl
ASoC: tas5086: Fix wrong value references for boolean kctl
ASoC: pcm1681: Fix wrong value references for boolean kctl
ASoC: es8238: Fix wrong value references for boolean kctl
ASoC: cs4271: Fix wrong value references for boolean kctl
ASoC: ak4641: Fix wrong value references for boolean kctl
ASoC: adav80x: Fix wrong value references for boolean kctl
ASoC: Fix component lists locking
ASoC: Intel: remove conflicts when load/unload multiple firmware images
ASoC: rt286: Change the DMI mapping for Dino
ASoC: sgtl5000: remove useless register write clearing CHRGPUMP_POWERUP
ASoC: fsl_ssi: Don't try to round-up for PM divisor calculation
...
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Pull crypto fixes from Herbert Xu:
"Fix a bug in the ARM XTS implementation that can cause failures in
decrypting encrypted disks, and fix is a memory overwrite bug that can
cause a crash which can be triggered from userspace"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: aesni - fix memory usage in GCM decryption
crypto: arm/aes update NEON AES module to latest OpenSSL version
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatching fix from Jiri Kosina:
- fix for potential race with module loading, from Petr Mladek.
The race is very unlikely to be seen in real world and has been found
by code inspection, but should be fixed for 4.0 anyway.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
livepatch: Fix subtle race with coming and going modules
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
- fixes for pen pen proximity / touch events in wacom driver, from Ping
Cheng and Benjamin Tissoires
- two new device-specific quirks from Oliver Neukum and Forest
Wilkinson
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: wacom: check for wacom->shared before following the pointer
HID: tivo: enable all buttons on the TiVo Slide Pro remote
HID: add ALWAYS_POLL quirk for a Logitech 0xc007
HID: wacom: rely on actual touch down count to decide touch_down
HID: wacom: do not send pen events before touch is up/forced out
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Ensure that clients can automatically configure themselves and avoid a
nasty warning at boot by providing capability information.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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We should signal connect (pull up dp) after we have already
at peripheral mode, otherwise, the dp may be toggled due to
we reset controller or do disconnect during the initialization
for peripheral, then, the host may be confused during the
enumeration, eg, it finds the reset can't succeed, but the
device is still there, see below error message.
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
hub 1-0:1.0: unable to enumerate USB device on port 1
Fixes: the issue existed when the otg fsm code was added.
Cc: <stable@vger.kernel.org> # v3.16+
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A new uas compatible controller has shown up in some people's devices from
the manufacturer Initio Corporation, this controller needs the US_FL_NO_ATA_1X
quirk to work properly with uas, so add it to the uas quirks table.
Reported-and-tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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radeon_bo_create() calls radeon_ttm_placement_from_domain()
before ttm_bo_init() is called. radeon_ttm_placement_from_domain()
uses the ttm bo size to determine when to select top down
allocation but since the ttm bo is not initialized yet the
check is always false. It only took effect when buffers
were validated later. It also seemed to regress suspend
and resume on some systems possibly due to it not
taking effect in radeon_bo_create().
radeon_bo_create() and radeon_ttm_placement_from_domain()
need to be reworked substantially for this to be optimally
effective. Re-enable it at that point.
Noticed-by: Oded Gabbay <oded.gabbay@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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The EHCI IP only needs the UTMI/UPLL (uclk) and the peripheral (iclk)
clocks to work properly. Remove the useless system clock (fclk).
Avoid calling set_rate on the fixed rate UTMI/IPLL clock and remove
useless IS_ENABLED(CONFIG_COMMON_CLK) tests (all at91 platforms have been
moved to the CCF).
This patch also fixes a bug introduced by 3440ef1 (ARM: at91/dt: fix USB
high-speed clock to select UTMI), which was leaving the usb clock
uninitialized and preventing the OHCI driver from setting the usb clock
rate to 48MHz.
This bug was caused by several things:
1/ usb clock drivers set the CLK_SET_RATE_GATE flag, which means the rate
cannot be changed once the clock is prepared
2/ The EHCI driver was retrieving and preparing/enabling the uhpck
clock which was in turn preparing its parent clock (the usb clock),
thus preventing any rate change because of 1/
Fixes: 3440ef169100 ("ARM: at91/dt: fix USB high-speed clock to select UTMI")
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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