Commit Graph

678126 Commits

Author SHA1 Message Date
Rafael J. Wysocki 079c1812a2 Merge branches 'intel_pstate', 'pm-cpufreq' and 'pm-cpufreq-sched'
* intel_pstate:
  cpufreq: intel_pstate: Document the current behavior and user interface

* pm-cpufreq:
  cpufreq: dbx500: add a Kconfig symbol

* pm-cpufreq-sched:
  cpufreq: schedutil: use now as reference when aggregating shared policy requests
2017-05-22 20:28:22 +02:00
David S. Miller e4eda884db net: Make IP alignment calulations clearer.
The assignmnet:

	ip_align = strict ? 2 : NET_IP_ALIGN;

in compare_pkt_ptr_alignment() trips up Coverity because we can only
get to this code when strict is true, therefore ip_align will always
be 2 regardless of NET_IP_ALIGN's value.

So just assign directly to '2' and explain the situation in the
comment above.

Reported-by: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-22 12:27:07 -04:00
Srinath Mannam f5f968f237 mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read
The stingray SDHCI hardware supports ACMD12 and automatically
issues after multi block transfer completed.

If ACMD12 in SDHCI is disabled, spurious tx done interrupts are seen
on multi block read command with below error message:

Got data interrupt 0x00000002 even though no data
operation was in progress.

This patch uses SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 to enable
ACM12 support in SDHCI hardware and suppress spurious interrupt.

Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: b580c52d58 ("mmc: sdhci-iproc: add IPROC SDHCI driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-05-22 18:18:04 +02:00
Jarod Wilson 751da2a69b bonding: fix accounting of active ports in 3ad
As of 7bb11dc9f5 and 0622cab034, bond slaves in a 3ad bond are not
removed from the aggregator when they are down, and the active slave count
is NOT equal to number of ports in the aggregator, but rather the number
of ports in the aggregator that are still enabled. The sysfs spew for
bonding_show_ad_num_ports() has a comment that says "Show number of active
802.3ad ports.", but it's currently showing total number of ports, both
active and inactive. Remedy it by using the same logic introduced in
0622cab034 in __bond_3ad_get_active_agg_info(), so sysfs, procfs and
netlink all report the number of active ports. Note that this means that
IFLA_BOND_AD_INFO_NUM_PORTS really means NUM_ACTIVE_PORTS instead of
NUM_PORTS, and thus perhaps should be renamed for clarity.

Lightly tested on a dual i40e lacp bond, simulating link downs with an ip
link set dev <slave2> down, was able to produce the state where I could
see both in the same aggregator, but a number of ports count of 1.

MII Status: up
Active Aggregator Info:
        Aggregator ID: 1
        Number of ports: 2 <---
Slave Interface: ens10
MII Status: up <---
Aggregator ID: 1
Slave Interface: ens11
MII Status: up
Aggregator ID: 1

MII Status: up
Active Aggregator Info:
        Aggregator ID: 1
        Number of ports: 1 <---
Slave Interface: ens10
MII Status: down <---
Aggregator ID: 1
Slave Interface: ens11
MII Status: up
Aggregator ID: 1

CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-22 12:05:39 -04:00
Alexey Khoroshilov bd703a1524 net: atheros: atl2: don't return zero on failure path in atl2_probe()
If dma mask checks fail in atl2_probe(), it breaks off initialization,
deallocates all resources, but returns zero.

The patch adds proper error code return value and
make error code setup unified.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-22 12:05:01 -04:00
Jan Glauber 8fb83b1428 mmc: cavium: Fix probing race with regulator
If the regulator probing is not yet finished this driver
might catch a -EPROBE_DEFER. Returning after this condition
did not remove the created platform device. On a repeated
call to the probe function the of_platform_device_create
fails.

Calling of_platform_device_destroy after EPROBE_DEFER resolves
this bug.

Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-05-22 18:01:46 +02:00
Jan Glauber c2372c2042 of/platform: Make of_platform_device_destroy globally visible
of_platform_device_destroy is the counterpart to
of_platform_device_create which is a non-static function.

After creating a platform device it might be neccessary
to destroy it to deal with -EPROBE_DEFER where a
repeated of_platform_device_create call would fail otherwise.

Therefore also make of_platform_device_destroy globally visible.

Signed-off-by: Jan Glauber <jglauber@cavium.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-05-22 18:01:46 +02:00
Jan Glauber 9e7b9a25e1 mmc: cavium: Prevent crash with incomplete DT
In case the DT specifies neither a regulator nor a gpio
for the shared power the driver will crash accessing the regulator.
Prevent the crash by checking the regulator before use.

Use mmc_regulator_get_supply() instead of open coding the same
logic.

Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-05-22 18:01:46 +02:00
Eric Dumazet 232cd35d08 ipv6: fix out of bound writes in __ip6_append_data()
Andrey Konovalov and idaifish@gmail.com reported crashes caused by
one skb shared_info being overwritten from __ip6_append_data()

Andrey program lead to following state :

copy -4200 datalen 2000 fraglen 2040
maxfraglen 2040 alloclen 2048 transhdrlen 0 offset 0 fraggap 6200

The skb_copy_and_csum_bits(skb_prev, maxfraglen, data + transhdrlen,
fraggap, 0); is overwriting skb->head and skb_shared_info

Since we apparently detect this rare condition too late, move the
code earlier to even avoid allocating skb and risking crashes.

Once again, many thanks to Andrey and syzkaller team.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: <idaifish@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-22 11:47:44 -04:00
Takashi Iwai a79e7df975 ALSA: hda - Update the list of quirk models
I've forgotten to sync the documentation with the actually available
options for some time.  Now all updated.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-22 16:42:02 +02:00
Takashi Iwai ba90d6a6b0 ALSA: hda - Provide dual-codecs model option for a few Realtek codecs
Recently some laptops and mobos are equipped with the dual Realtek
codecs that require special quirks.  For making the debugging easier,
add the model "dual-codecs" to be passed via module option.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-22 16:38:47 +02:00
Takashi Iwai 63691587f7 ALSA: hda - Apply dual-codec quirk for MSI Z270-Gaming mobo
MSI Z270-Gamin mobo has also two ALC1220 codecs like Gigabyte AZ370-
Gaming mobo.  Apply the same quirk to this one.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-22 16:36:00 +02:00
Jan Kiszka e2c824924c i2c: designware: Fix bogus sda_hold_time due to uninitialized vars
We need to initializes those variables to 0 for platforms that do not
provide ACPI parameters. Otherwise, we set sda_hold_time to random
values, breaking e.g. Galileo and IOT2000 boards.

Fixes: 9d64084330 ("i2c: designware: don't infer timings described by ACPI from clock rate")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-05-22 10:35:51 +02:00
Sebastian Reichel 5165da5923 i2c: i2c-tiny-usb: fix buffer not being DMA capable
Since v4.9 i2c-tiny-usb generates the below call trace
and longer works, since it can't communicate with the
USB device. The reason is, that since v4.9 the USB
stack checks, that the buffer it should transfer is DMA
capable. This was a requirement since v2.2 days, but it
usually worked nevertheless.

[   17.504959] ------------[ cut here ]------------
[   17.505488] WARNING: CPU: 0 PID: 93 at drivers/usb/core/hcd.c:1587 usb_hcd_map_urb_for_dma+0x37c/0x570
[   17.506545] transfer buffer not dma capable
[   17.507022] Modules linked in:
[   17.507370] CPU: 0 PID: 93 Comm: i2cdetect Not tainted 4.11.0-rc8+ #10
[   17.508103] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[   17.509039] Call Trace:
[   17.509320]  ? dump_stack+0x5c/0x78
[   17.509714]  ? __warn+0xbe/0xe0
[   17.510073]  ? warn_slowpath_fmt+0x5a/0x80
[   17.510532]  ? nommu_map_sg+0xb0/0xb0
[   17.510949]  ? usb_hcd_map_urb_for_dma+0x37c/0x570
[   17.511482]  ? usb_hcd_submit_urb+0x336/0xab0
[   17.511976]  ? wait_for_completion_timeout+0x12f/0x1a0
[   17.512549]  ? wait_for_completion_timeout+0x65/0x1a0
[   17.513125]  ? usb_start_wait_urb+0x65/0x160
[   17.513604]  ? usb_control_msg+0xdc/0x130
[   17.514061]  ? usb_xfer+0xa4/0x2a0
[   17.514445]  ? __i2c_transfer+0x108/0x3c0
[   17.514899]  ? i2c_transfer+0x57/0xb0
[   17.515310]  ? i2c_smbus_xfer_emulated+0x12f/0x590
[   17.515851]  ? _raw_spin_unlock_irqrestore+0x11/0x20
[   17.516408]  ? i2c_smbus_xfer+0x125/0x330
[   17.516876]  ? i2c_smbus_xfer+0x125/0x330
[   17.517329]  ? i2cdev_ioctl_smbus+0x1c1/0x2b0
[   17.517824]  ? i2cdev_ioctl+0x75/0x1c0
[   17.518248]  ? do_vfs_ioctl+0x9f/0x600
[   17.518671]  ? vfs_write+0x144/0x190
[   17.519078]  ? SyS_ioctl+0x74/0x80
[   17.519463]  ? entry_SYSCALL_64_fastpath+0x1e/0xad
[   17.519959] ---[ end trace d047c04982f5ac50 ]---

Cc: <stable@vger.kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Till Harbaum <till@harbaum.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-05-22 10:33:42 +02:00
Lukas Wunner e480eabae2 drm/radeon: Fix oops upon driver load on PowerXpress laptops
Nicolai Stange reports the following oops which is caused by
dereferencing rdev->pdev before it's subsequently set by
radeon_device_init().  Fix it.

  BUG: unable to handle kernel NULL pointer dereference at 00000000000007cb
  IP: radeon_driver_load_kms+0xeb/0x230 [radeon]
  ...
  Call Trace:
   drm_dev_register+0x146/0x1d0 [drm]
   drm_get_pci_dev+0x9a/0x180 [drm]
   radeon_pci_probe+0xb8/0xe0 [radeon]
   local_pci_probe+0x45/0xa0
   pci_device_probe+0x14f/0x1a0
   driver_probe_device+0x29c/0x450
   __driver_attach+0xdf/0xf0
   ? driver_probe_device+0x450/0x450
   bus_for_each_dev+0x6c/0xc0
   driver_attach+0x1e/0x20
   bus_add_driver+0x170/0x270
   driver_register+0x60/0xe0
   ? 0xffffffffc0508000
   __pci_register_driver+0x4c/0x50
   drm_pci_init+0xeb/0x100 [drm]
   ? vga_switcheroo_register_handler+0x6a/0x90
   ? 0xffffffffc0508000
   radeon_init+0x98/0xb6 [radeon]
   do_one_initcall+0x52/0x1a0
   ? __vunmap+0x81/0xb0
   ? kmem_cache_alloc_trace+0x159/0x1b0
   ? do_init_module+0x27/0x1f8
   do_init_module+0x5f/0x1f8
   load_module+0x27ce/0x2be0
   SYSC_finit_module+0xdf/0x110
   ? SYSC_finit_module+0xdf/0x110
   SyS_finit_module+0xe/0x10
   do_syscall_64+0x67/0x150
   entry_SYSCALL64_slow_path+0x25/0x25

Fixes: 7ffb0ce31c ("drm/radeon: Don't register Thunderbolt eGPU with vga_switcheroo")
Reported-and-tested-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: http://patchwork.freedesktop.org/patch/msgid/cfb91ba052af06117137eec0637543a2626a7979.1495135190.git.lukas@wunner.de
2017-05-22 07:14:31 +02:00
Linus Torvalds 08332893e3 Linux 4.12-rc2 2017-05-21 19:30:23 -07:00
Linus Torvalds 33c9e97290 x86: fix 32-bit case of __get_user_asm_u64()
The code to fetch a 64-bit value from user space was entirely buggered,
and has been since the code was merged in early 2016 in commit
b2f680380d ("x86/mm/32: Add support for 64-bit __get_user() on 32-bit
kernels").

Happily the buggered routine is almost certainly entirely unused, since
the normal way to access user space memory is just with the non-inlined
"get_user()", and the inlined version didn't even historically exist.

The normal "get_user()" case is handled by external hand-written asm in
arch/x86/lib/getuser.S that doesn't have either of these issues.

There were two independent bugs in __get_user_asm_u64():

 - it still did the STAC/CLAC user space access marking, even though
   that is now done by the wrapper macros, see commit 11f1a4b975
   ("x86: reorganize SMAP handling in user space accesses").

   This didn't result in a semantic error, it just means that the
   inlined optimized version was hugely less efficient than the
   allegedly slower standard version, since the CLAC/STAC overhead is
   quite high on modern Intel CPU's.

 - the double register %eax/%edx was marked as an output, but the %eax
   part of it was touched early in the asm, and could thus clobber other
   inputs to the asm that gcc didn't expect it to touch.

   In particular, that meant that the generated code could look like
   this:

        mov    (%eax),%eax
        mov    0x4(%eax),%edx

   where the load of %edx obviously was _supposed_ to be from the 32-bit
   word that followed the source of %eax, but because %eax was
   overwritten by the first instruction, the source of %edx was
   basically random garbage.

The fixes are trivial: remove the extraneous STAC/CLAC entries, and mark
the 64-bit output as early-clobber to let gcc know that no inputs should
alias with the output register.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable@kernel.org   # v4.8+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-21 18:26:54 -07:00
Linus Torvalds 334a023ee5 Clean up x86 unsafe_get/put_user() type handling
Al noticed that unsafe_put_user() had type problems, and fixed them in
commit a7cc722fff ("fix unsafe_put_user()"), which made me look more
at those functions.

It turns out that unsafe_get_user() had a type issue too: it limited the
largest size of the type it could handle to "unsigned long".  Which is
fine with the current users, but doesn't match our existing normal
get_user() semantics, which can also handle "u64" even when that does
not fit in a long.

While at it, also clean up the type cast in unsafe_put_user().  We
actually want to just make it an assignment to the expected type of the
pointer, because we actually do want warnings from types that don't
convert silently.  And it makes the code more readable by not having
that one very long and complex line.

[ This patch might become stable material if we ever end up back-porting
  any new users of the unsafe uaccess code, but as things stand now this
  doesn't matter for any current existing uses. ]

Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-21 15:25:46 -07:00
Vishal Verma fc08a4703a acpi, nfit: Fix the memory error check in nfit_handle_mce()
The check for an MCE being a memory error in the NFIT mce handler was
bogus. Use the new mce_is_memory_error() helper to detect the error
properly.

Reported-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170519093915.15413-3-bp@alien8.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-05-21 21:39:59 +02:00
Borislav Petkov 2d1f406139 x86/MCE: Export memory_error()
Export the function which checks whether an MCE is a memory error to
other users so that we can reuse the logic. Drop the boot_cpu_data use,
while at it, as mce.cpuvendor already has the CPU vendor in there.

Integrate a piece from a patch from Vishal Verma
<vishal.l.verma@intel.com> to export it for modules (nfit).

The main reason we're exporting it is that the nfit handler
nfit_handle_mce() needs to detect a memory error properly before doing
its recovery actions.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170519093915.15413-2-bp@alien8.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-05-21 21:39:58 +02:00
Linus Torvalds f3926e4c2a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc uaccess fixes from Al Viro:
 "Fix for unsafe_put_user() (no callers currently in mainline, but
  anyone starting to use it will step into that) + alpha osf_wait4()
  infoleak fix"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  osf_wait4(): fix infoleak
  fix unsafe_put_user()
2017-05-21 12:06:44 -07:00
Linus Torvalds 970c305aa8 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
 "A single scheduler fix:

  Prevent idle task from ever being preempted. That makes sure that
  synchronize_rcu_tasks() which is ignoring idle task does not pretend
  that no task is stuck in preempted state. If that happens and idle was
  preempted on a ftrace trampoline the machine crashes due to
  inconsistent state"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/core: Call __schedule() from do_idle() without enabling preemption
2017-05-21 11:52:00 -07:00
Linus Torvalds e7a3d62749 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "A set of small fixes for the irq subsystem:

   - Cure a data ordering problem with chained interrupts

   - Three small fixlets for the mbigen irq chip"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Fix chained interrupt data ordering
  irqchip/mbigen: Fix the clear register offset calculation
  irqchip/mbigen: Fix potential NULL dereferencing
  irqchip/mbigen: Fix memory mapping code
2017-05-21 11:45:26 -07:00
Xin Long 6d18c732b9 bridge: start hello_timer when enabling KERNEL_STP in br_stp_start
Since commit 76b91c32dd ("bridge: stp: when using userspace stp stop
kernel hello and hold timers"), bridge would not start hello_timer if
stp_enabled is not KERNEL_STP when br_dev_open.

The problem is even if users set stp_enabled with KERNEL_STP later,
the timer will still not be started. It causes that KERNEL_STP can
not really work. Users have to re-ifup the bridge to avoid this.

This patch is to fix it by starting br->hello_timer when enabling
KERNEL_STP in br_stp_start.

As an improvement, it's also to start hello_timer again only when
br->stp_enabled is KERNEL_STP in br_hello_timer_expired, there is
no reason to start the timer again when it's NO_STP.

Fixes: 76b91c32dd ("bridge: stp: when using userspace stp stop kernel hello and hold timers")
Reported-by: Haidong Li <haili@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Reviewed-by: Ivan Vecera <cera@cera.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:33:28 -04:00
Nisar Sayed fe0cd8ca1b smsc95xx: Support only IPv4 TCP/UDP csum offload
When TX checksum offload is used, if the computed checksum is 0 the
LAN95xx device do not alter the checksum to 0xffff.  In the case of ipv4
UDP checksum, it indicates to receiver that no checksum is calculated.
Under ipv6, UDP checksum yields a result of zero must be changed to
0xffff. Hence disabling checksum offload for ipv6 packets.

Signed-off-by: Nisar Sayed <Nisar.Sayed@microchip.com>

Reported-by: popcorn mix <popcornmix@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:31:48 -04:00
David S. Miller 776ee323dd Merge branch 'arp-always-override-existing-neigh-entries-with-gratuitous-ARP'
Ihar Hrachyshka says:

====================
arp: always override existing neigh entries with gratuitous ARP

This patchset is spurred by discussion started at
https://patchwork.ozlabs.org/patch/760372/ where we figured that there is no
real reason for enforcing override by gratuitous ARP packets only when
arp_accept is 1. Same should happen when it's 0 (the default value).

changelog v2: handled review comments by Julian Anastasov
- fixed a mistake in a comment;
- postponed addr_type calculation to as late as possible.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:26:46 -04:00
Ihar Hrachyshka 7d472a59c0 arp: always override existing neigh entries with gratuitous ARP
Currently, when arp_accept is 1, we always override existing neigh
entries with incoming gratuitous ARP replies. Otherwise, we override
them only if new replies satisfy _locktime_ conditional (packets arrive
not earlier than _locktime_ seconds since the last update to the neigh
entry).

The idea behind locktime is to pick the very first (=> close) reply
received in a unicast burst when ARP proxies are used. This helps to
avoid ARP thrashing where Linux would switch back and forth from one
proxy to another.

This logic has nothing to do with gratuitous ARP replies that are
generally not aligned in time when multiple IP address carriers send
them into network.

This patch enforces overriding of existing neigh entries by all incoming
gratuitous ARP packets, irrespective of their time of arrival. This will
make the kernel honour all incoming gratuitous ARP packets.

Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:26:45 -04:00
Ihar Hrachyshka d9ef2e7bf9 arp: postpone addr_type calculation to as late as possible
The addr_type retrieval can be costly, so it's worth trying to avoid its
calculation as much as possible. This patch makes it calculated only
for gratuitous ARP packets. This is especially important since later we
may want to move is_garp calculation outside of arp_accept block, at
which point the costly operation will be executed for all setups.

The patch is the result of a discussion in net-dev:
http://marc.info/?l=linux-netdev&m=149506354216994

Suggested-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:26:45 -04:00
Ihar Hrachyshka 6fd05633bd arp: decompose is_garp logic into a separate function
The code is quite involving already to earn a separate function for
itself. If anything, it helps arp_process readability.

Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:26:45 -04:00
Ihar Hrachyshka 34eb5fe078 arp: fixed error in a comment
the is_garp code deals just with gratuitous ARP packets, not every
unsolicited packet.

This patch is a result of a discussion in netdev:
http://marc.info/?l=linux-netdev&m=149506354216994

Suggested-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:26:45 -04:00
Wei Wang 499350a5a6 tcp: initialize rcv_mss to TCP_MIN_MSS instead of 0
When tcp_disconnect() is called, inet_csk_delack_init() sets
icsk->icsk_ack.rcv_mss to 0.
This could potentially cause tcp_recvmsg() => tcp_cleanup_rbuf() =>
__tcp_select_window() call path to have division by 0 issue.
So this patch initializes rcv_mss to TCP_MIN_MSS instead of 0.

Reported-by: Andrey Konovalov  <andreyknvl@google.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:24:47 -04:00
Al Viro a8c39544a6 osf_wait4(): fix infoleak
failing sys_wait4() won't fill struct rusage...

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-05-21 13:10:07 -04:00
Al Viro a7cc722fff fix unsafe_put_user()
__put_user_size() relies upon its first argument having the same type as what
the second one points to; the only other user makes sure of that and
unsafe_put_user() should do the same.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-05-21 13:09:57 -04:00
David S. Miller 23416e2304 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter/IPVS fixes for net

The following patchset contains Netfilter/IPVS fixes for your net tree,
they are:

1) When using IPVS in direct-routing mode, normal traffic from the LVS
   host to a back-end server is sometimes incorrectly NATed on the way
   back into the LVS host. Patch to fix this from Julian Anastasov.

2) Calm down clang compilation warning in ctnetlink due to type
   mismatch, from Matthias Kaehlcke.

3) Do not re-setup NAT for conntracks that are already confirmed, this
   is fixing a problem that was introduced in the previous nf-next batch.
   Patch from Liping Zhang.

4) Do not allow conntrack helper removal from userspace cthelper
   infrastructure if already in used. This comes with an initial patch
   to introduce nf_conntrack_helper_put() that is required by this fix.
   From Liping Zhang.

5) Zero the pad when copying data to userspace, otherwise iptables fails
   to remove rules. This is a follow up on the patchset that sorts out
   the internal match/target structure pointer leak to userspace. Patch
   from the same author, Willem de Bruijn. This also comes with a build
   failure when CONFIG_COMPAT is not on, coming in the last patch of
   this series.

6) SYNPROXY crashes with conntrack entries that are created via
   ctnetlink, more specifically via conntrackd state sync. Patch from
   Eric Leblond.

7) RCU safe iteration on set element dumping in nf_tables, from
   Liping Zhang.

8) Missing sanitization of immediate date for the bitwise and cmp
   expressions in nf_tables.

9) Refcounting logic for chain and objects from set elements does not
   integrate into the nf_tables 2-phase commit protocol.

10) Missing sanitization of target verdict in ebtables arpreply target,
    from Gao Feng.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21 13:00:02 -04:00
Rob Landley 3780578761 x86/boot: Use CROSS_COMPILE prefix for readelf
The boot code Makefile contains a straight 'readelf' invocation. This
causes build warnings in cross compile environments, when there is no
unprefixed readelf accessible via $PATH.

Add the missing $(CROSS_COMPILE) prefix.

[ tglx: Rewrote changelog ]

Fixes: 98f7852537 ("x86/boot: Refuse to build with data relocations")
Signed-off-by: Rob Landley <rob@landley.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: "H.J. Lu" <hjl.tools@gmail.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/ced18878-693a-9576-a024-113ef39a22c0@landley.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-05-21 13:04:27 +02:00
Linus Torvalds 56f410cf45 This fixes a bug caused by not cleaning up the new instance unique triggers
when deleting an instance. It also creates a selftest that triggers that bug.
 
 Fix the delayed optimization happening after kprobes boot up self tests
 being removed by freeing of init memory.
 
 Comment kprobes on why the delay optimization is not a problem for removal
 of modules, to keep other developers from searching that riddle.
 
 Fix another rcu isn't watching in stack trace tracing.
 
 Naveen N. Rao (4):
       ftrace: Simplify glob handling in unregister_ftrace_function_probe_func()
       ftrace/instances: Clear function triggers when removing instances
       selftests/ftrace: Fix bashisms
       selftests/ftrace: Add test to remove instance with active event triggers
 
 Steven Rostedt (1):
       tracing: Move postpone selftests to core from early_initcall
 
 Steven Rostedt (VMware) (3):
       ftrace: Remove #ifdef from code and add clear_ftrace_function_probes() stub
       kprobes: Document how optimized kprobes are removed from module unload
       tracing: Make sure RCU is watching before calling a stack trace
 
 Thomas Gleixner (1):
       tracing/kprobes: Enforce kprobes teardown after testing
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Merge tag 'trace-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix a bug caused by not cleaning up the new instance unique triggers
   when deleting an instance. It also creates a selftest that triggers
   that bug.

 - Fix the delayed optimization happening after kprobes boot up self
   tests being removed by freeing of init memory.

 - Comment kprobes on why the delay optimization is not a problem for
   removal of modules, to keep other developers from searching that
   riddle.

 - Fix another case of rcu not watching in stack trace tracing.

* tag 'trace-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Make sure RCU is watching before calling a stack trace
  kprobes: Document how optimized kprobes are removed from module unload
  selftests/ftrace: Add test to remove instance with active event triggers
  selftests/ftrace: Fix bashisms
  ftrace: Remove #ifdef from code and add clear_ftrace_function_probes() stub
  ftrace/instances: Clear function triggers when removing instances
  ftrace: Simplify glob handling in unregister_ftrace_function_probe_func()
  tracing/kprobes: Enforce kprobes teardown after testing
  tracing: Move postpone selftests to core from early_initcall
2017-05-20 23:39:03 -07:00
Linus Torvalds 894e21642d Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "A small collection of fixes that should go into this cycle.

   - a pull request from Christoph for NVMe, which ended up being
     manually applied to avoid pulling in newer bits in master. Mostly
     fibre channel fixes from James, but also a few fixes from Jon and
     Vijay

   - a pull request from Konrad, with just a single fix for xen-blkback
     from Gustavo.

   - a fuseblk bdi fix from Jan, fixing a regression in this series with
     the dynamic backing devices.

   - a blktrace fix from Shaohua, replacing sscanf() with kstrtoull().

   - a request leak fix for drbd from Lars, fixing a regression in the
     last series with the kref changes. This will go to stable as well"

* 'for-linus' of git://git.kernel.dk/linux-block:
  nvmet: release the sq ref on rdma read errors
  nvmet-fc: remove target cpu scheduling flag
  nvme-fc: stop queues on error detection
  nvme-fc: require target or discovery role for fc-nvme targets
  nvme-fc: correct port role bits
  nvme: unmap CMB and remove sysfs file in reset path
  blktrace: fix integer parse
  fuseblk: Fix warning in super_setup_bdi_name()
  block: xen-blkback: add null check to avoid null pointer dereference
  drbd: fix request leak introduced by locking/atomic, kref: Kill kref_sub()
2017-05-20 16:12:30 -07:00
Vijay Immanuel 549f01ae7b nvmet: release the sq ref on rdma read errors
On rdma read errors, release the sq ref that was taken
when the req was initialized. This avoids a hang in
nvmet_sq_destroy() when the queue is being freed.

Signed-off-by: Vijay Immanuel <vijayi@attalasystems.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-20 10:11:34 -06:00
James Smart 4b8ba5fa52 nvmet-fc: remove target cpu scheduling flag
Remove NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED. It's unnecessary.

Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-20 10:11:34 -06:00
James Smart 2952a879ba nvme-fc: stop queues on error detection
Per the recommendation by Sagi on:
http://lists.infradead.org/pipermail/linux-nvme/2017-April/009261.html

Rather than waiting for reset work thread to stop queues and abort the ios,
immediately stop the queues on error detection. Reset thread will restop
the queues (as it's called on other paths), but it does not appear to have
a side effect.

Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-20 10:11:34 -06:00
James Smart 85e6a6adf8 nvme-fc: require target or discovery role for fc-nvme targets
In order to create an association, the remoteport must be
serving either a target role or a discovery role.

Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-20 10:11:34 -06:00
James Smart 4123109050 nvme-fc: correct port role bits
FC Port roles is a bit mask, not individual values.
Correct nvme definitions to unique bits.

Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-20 10:11:34 -06:00
Jon Derrick f63572dff1 nvme: unmap CMB and remove sysfs file in reset path
CMB doesn't get unmapped until removal while getting remapped on every
reset. Add the unmapping and sysfs file removal to the reset path in
nvme_pci_disable to match the mapping path in nvme_pci_enable.

Fixes: 202021c1a ("nvme : Add sysfs entry for NVMe CMBs when appropriate")

Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Reviewed-By: Stephen Bates <sbates@raithlin.com>
Cc: <stable@vger.kernel.org> # 4.9+
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-05-20 10:11:34 -06:00
Linus Torvalds ef82f1ad2e Staging driver fixes for 4.12-rc2
Here are a number of staging driver fixes for 4.12-rc2
 
 Most of them are typec driver fixes found by reviewers and users of the
 code.  There are also some removals of files no longer needed in the
 tree due to the ion driver rewrite in 4.12-rc1, as well as some wifi
 driver fixes.  And to round it out, a MAINTAINERS file update.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are a number of staging driver fixes for 4.12-rc2

  Most of them are typec driver fixes found by reviewers and users of
  the code. There are also some removals of files no longer needed in
  the tree due to the ion driver rewrite in 4.12-rc1, as well as some
  wifi driver fixes. And to round it out, a MAINTAINERS file update.

  All have been in linux-next with no reported issues"

* tag 'staging-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (22 commits)
  MAINTAINERS: greybus-dev list is members-only
  staging: fsl-dpaa2/eth: add ETHERNET dependency
  staging: typec: fusb302: refactor resume retry mechanism
  staging: typec: fusb302: reset i2c_busy state in error
  staging: rtl8723bs: remove re-positioned call to kfree in os_dep/ioctl_cfg80211.c
  staging: rtl8192e: GetTs Fix invalid TID 7 warning.
  staging: rtl8192e: rtl92e_get_eeprom_size Fix read size of EPROM_CMD.
  staging: rtl8192e: fix 2 byte alignment of register BSSIDR.
  staging: rtl8192e: rtl92e_fill_tx_desc fix write to mapped out memory.
  staging: vc04_services: Fix bulk cache maintenance
  staging: ccree: remove extraneous spin_unlock_bh() in error handler
  staging: typec: Fix sparse warnings about incorrect types
  staging: typec: fusb302: do not free gpio from managed resource
  staging: typec: tcpm: Fix Port Power Role field in PS_RDY messages
  staging: typec: tcpm: Respond to Discover Identity commands
  staging: typec: tcpm: Set correct flags in PD request messages
  staging: typec: tcpm: Drop duplicate PD messages
  staging: typec: fusb302: Fix chip->vbus_present init value
  staging: typec: fusb302: Fix module autoload
  staging: typec: tcpci: declare private structure as static
  ...
2017-05-20 09:02:27 -07:00
Linus Torvalds 3202629345 USB fixes for 4.12-rc2
Here are a number of small USB fixes for 4.12-rc2
 
 Most of them come from Johan, in his valiant quest to fix up all drivers
 that could be affected by "malicious" USB devices.  There's also some
 fixes for more "obscure" drivers to handle some of the vmalloc stack
 fallout (which for USB drivers, was always the case, but very few people
 actually ran those systems...)
 
 Other than that, the normal set of xhci and gadget and musb driver fixes
 as well.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of small USB fixes for 4.12-rc2

  Most of them come from Johan, in his valiant quest to fix up all
  drivers that could be affected by "malicious" USB devices. There's
  also some fixes for more "obscure" drivers to handle some of the
  vmalloc stack fallout (which for USB drivers, was always the case, but
  very few people actually ran those systems...)

  Other than that, the normal set of xhci and gadget and musb driver
  fixes as well.

  All have been in linux-next with no reported issues"

* tag 'usb-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (42 commits)
  usb: musb: tusb6010_omap: Do not reset the other direction's packet size
  usb: musb: Fix trying to suspend while active for OTG configurations
  usb: host: xhci-plat: propagate return value of platform_get_irq()
  xhci: Fix command ring stop regression in 4.11
  xhci: remove GFP_DMA flag from allocation
  USB: xhci: fix lock-inversion problem
  usb: host: xhci-ring: don't need to clear interrupt pending for MSI enabled hcd
  usb: host: xhci-mem: allocate zeroed Scratchpad Buffer
  xhci: apply PME_STUCK_QUIRK and MISSING_CAS quirk for Denverton
  usb: xhci: trace URB before giving it back instead of after
  USB: serial: qcserial: add more Lenovo EM74xx device IDs
  USB: host: xhci: use max-port define
  USB: hub: fix SS max number of ports
  USB: hub: fix non-SS hub-descriptor handling
  USB: hub: fix SS hub-descriptor handling
  USB: usbip: fix nonconforming hub descriptor
  USB: gadget: dummy_hcd: fix hub-descriptor removable fields
  doc-rst: fixed kernel-doc directives in usb/typec.rst
  USB: core: of: document reference taken by companion helper
  USB: ehci-platform: fix companion-device leak
  ...
2017-05-20 08:52:34 -07:00
Linus Torvalds 331da109ec Char/Misc driver fixes for 4.12-rc2
Here are 5 small bugfixes for reported issues with 4.12-rc1 and earlier
 kernels.  Nothing huge here, just a lp, mem, vpd, and uio driver fix,
 along with a Kconfig fixup for one of the misc drivers.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are five small bugfixes for reported issues with 4.12-rc1 and
  earlier kernels. Nothing huge here, just a lp, mem, vpd, and uio
  driver fix, along with a Kconfig fixup for one of the misc drivers.

  All of these have been in linux-next with no reported issues"

* tag 'char-misc-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  firmware: Google VPD: Fix memory allocation error handling
  drivers: char: mem: Check for address space wraparound with mmap()
  uio: fix incorrect memory leak cleanup
  misc: pci_endpoint_test: select CRC32
  char: lp: fix possible integer overflow in lp_setup()
2017-05-20 08:44:22 -07:00
Linus Torvalds ec53c027f3 Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
 - orion_wdt compile-test dependencies
 - sama5d4_wdt: WDDIS handling and a race confition
 - pcwd_usb: fix NULL-deref at probe
 - cadence_wdt: fix timeout setting
 - wdt_pci: fix build error if SOFTWARE_REBOOT is defined
 - iTCO_wdt: all versions count down twice
 - zx2967: remove redundant dev_err call in zx2967_wdt_probe()
 - bcm281xx: Fix use of uninitialized spinlock

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: bcm281xx: Fix use of uninitialized spinlock.
  watchdog: zx2967: remove redundant dev_err call in zx2967_wdt_probe()
  iTCO_wdt: all versions count down twice
  watchdog: wdt_pci: fix build error if define SOFTWARE_REBOOT
  watchdog: cadence_wdt: fix timeout setting
  watchdog: pcwd_usb: fix NULL-deref at probe
  watchdog: sama5d4: fix race condition
  watchdog: sama5d4: fix WDDIS handling
  watchdog: orion: fix compile-test dependencies
2017-05-20 08:35:27 -07:00
Linus Torvalds cf80a6fbca i915, nouveau, hdlcd and misc fixes.
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Merge tag 'drm-fixes-for-v4.12-rc2' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Mostly nouveau and i915, fairly quiet as usual for rc2"

* tag 'drm-fixes-for-v4.12-rc2' of git://people.freedesktop.org/~airlied/linux:
  drm/atmel-hlcdc: Fix output initialization
  gpu: host1x: select IOMMU_IOVA
  drm/nouveau/fifo/gk104-: Silence a locking warning
  drm/nouveau/secboot: plug memory leak in ls_ucode_img_load_gr() error path
  drm/nouveau: Fix drm poll_helper handling
  drm/i915: don't do allocate_va_range again on PIN_UPDATE
  drm/i915: Fix rawclk readout for g4x
  drm/i915: Fix runtime PM for LPE audio
  drm/i915/glk: Fix DSI "*ERROR* ULPS is still active" messages
  drm/i915/gvt: avoid unnecessary vgpu switch
  drm/i915/gvt: not to restore in-context mmio
  drm/etnaviv: don't put fence in case of submit failure
  drm/i915/gvt: fix typo: "supporte" -> "support"
  drm: hdlcd: Fix the calculation of the scanout start address
2017-05-20 08:29:30 -07:00
Linus Torvalds 6fe1de43c5 SCSI fixes on 20170519
This is the first sweep of mostly minor fixes.  There's one security
 one: the read past the end of a buffer in qedf, and a panic fix for
 lpfc SLI-3 adapters, but the rest are a set of include and build
 dependency tidy ups and assorted other small fixes and updates.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is the first sweep of mostly minor fixes. There's one security
  one: the read past the end of a buffer in qedf, and a panic fix for
  lpfc SLI-3 adapters, but the rest are a set of include and build
  dependency tidy ups and assorted other small fixes and updates"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: pmcraid: remove redundant check to see if request_size is less than zero
  scsi: lpfc: ensure els_wq is being checked before destroying it
  scsi: cxlflash: Select IRQ_POLL
  scsi: qedf: Avoid reading past end of buffer
  scsi: qedf: Cleanup the type of io_log->op
  scsi: lpfc: double lock typo in lpfc_ns_rsp()
  scsi: qedf: properly update arguments position in function call
  scsi: scsi_lib: Add #include <scsi/scsi_transport.h>
  scsi: MAINTAINERS: update OSD entries
  scsi: Skip deleted devices in __scsi_device_lookup
  scsi: lpfc: Fix panic on BFS configuration
  scsi: libfc: do not flood console with messages 'libfc: queue full ...'
2017-05-19 17:46:51 -07:00
Linus Torvalds 8c3fc1643d Merge branch 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
 "A couple of compile fixes.

  With the removal of the ->direct_access() method from
  block_device_operations in favor of a new dax_device + dax_operations
  we broke two configurations.

  The CONFIG_BLOCK=n case is fixed by compiling out the block+dax
  helpers in the dax core. Configurations with FS_DAX=n EXT4=y / XFS=y
  and DAX=m fail due to the helpers the builtin filesystem needs being
  in a module, so we stub out the helpers in the FS_DAX=n case."

* 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax, xfs, ext4: compile out iomap-dax paths in the FS_DAX=n case
  dax: fix false CONFIG_BLOCK dependency
2017-05-19 17:35:34 -07:00