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982,081 commits

Author SHA1 Message Date
Yash Shah
6342ea8867 macb: Update compatibility string for SiFive FU540-C000
Update the compatibility string for SiFive FU540-C000 as per the new
string updated in the binding doc.
Reference:
https://lore.kernel.org/netdev/CAJ2_jOFEVZQat0Yprg4hem4jRrqkB72FKSeQj4p8P5KA-+rgww@mail.gmail.com/

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: Paul Walmsley <paul.walmsley@sifive.com>
Tested-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-28 14:05:48 -07:00
Yash Shah
abecec415d macb: bindings doc: update sifive fu540-c000 binding
As per the discussion with Nicolas Ferre[0], rename the compatible property
to a more appropriate and specific string.

[0] https://lore.kernel.org/netdev/CAJ2_jOFEVZQat0Yprg4hem4jRrqkB72FKSeQj4p8P5KA-+rgww@mail.gmail.com/

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: Paul Walmsley <paul.walmsley@sifive.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-28 14:05:48 -07:00
Eddie James
8919dfcb31 fsi: scom: Don't abort operations for minor errors
The scom driver currently fails out of operations if certain system
errors are flagged in the status register; system checkstop, special
attention, or recoverable error. These errors won't impact the ability
of the scom engine to perform operations, so the driver should continue
under these conditions.
Also, don't do a PIB reset for these conditions, since it won't help.

Fixes: 6b293258cd ("fsi: scom: Major overhaul")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20190827041249.13381-1-jk@ozlabs.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:59:18 +02:00
Nadav Amit
468e0ffac8 vmw_balloon: Fix offline page marking with compaction
The compaction code already marks pages as offline when it enqueues
pages in the ballooned page list, and removes the mapping when the pages
are removed from the list. VMware balloon also updates the flags,
instead of letting the balloon-compaction logic handle it, which causes
the assertion VM_BUG_ON_PAGE(!PageOffline(page)) to fire, when
__ClearPageOffline is called the second time. This causes the following
crash.

[  487.104520] kernel BUG at include/linux/page-flags.h:749!
[  487.106364] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC PTI
[  487.107681] CPU: 7 PID: 1106 Comm: kworker/7:3 Not tainted 5.3.0-rc5balloon #227
[  487.109196] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018
[  487.111452] Workqueue: events_freezable vmballoon_work [vmw_balloon]
[  487.112779] RIP: 0010:vmballoon_release_page_list+0xaa/0x100 [vmw_balloon]
[  487.114200] Code: fe 48 c1 e7 06 4c 01 c7 8b 47 30 41 89 c1 41 81 e1 00 01 00 f0 41 81 f9 00 00 00 f0 74 d3 48 c7 c6 08 a1 a1 c0 e8 06 0d e7 ea <0f> 0b 44 89 f6 4c 89 c7 e8 49 9c e9 ea 49 8d 75 08 49 8b 45 08 4d
[  487.118033] RSP: 0018:ffffb82f012bbc98 EFLAGS: 00010246
[  487.119135] RAX: 0000000000000037 RBX: 0000000000000001 RCX: 0000000000000006
[  487.120601] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9a85b6bd7620
[  487.122071] RBP: ffffb82f012bbcc0 R08: 0000000000000001 R09: 0000000000000000
[  487.123536] R10: 0000000000000000 R11: 0000000000000000 R12: ffffb82f012bbd00
[  487.125002] R13: ffffe97f4598d9c0 R14: 0000000000000000 R15: ffffb82f012bbd34
[  487.126463] FS:  0000000000000000(0000) GS:ffff9a85b6bc0000(0000) knlGS:0000000000000000
[  487.128110] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  487.129316] CR2: 00007ffe6e413ea0 CR3: 0000000230b18001 CR4: 00000000003606e0
[  487.130812] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  487.132283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  487.133749] Call Trace:
[  487.134333]  vmballoon_deflate+0x22c/0x390 [vmw_balloon]
[  487.135468]  vmballoon_work+0x6e7/0x913 [vmw_balloon]
[  487.136711]  ? process_one_work+0x21a/0x5e0
[  487.138581]  process_one_work+0x298/0x5e0
[  487.139926]  ? vmballoon_migratepage+0x310/0x310 [vmw_balloon]
[  487.141610]  ? process_one_work+0x298/0x5e0
[  487.143053]  worker_thread+0x41/0x400
[  487.144389]  kthread+0x12b/0x150
[  487.145582]  ? process_one_work+0x5e0/0x5e0
[  487.146937]  ? kthread_create_on_node+0x60/0x60
[  487.148637]  ret_from_fork+0x3a/0x50

Fix it by updating the PageOffline indication only when a 2MB page is
enqueued and dequeued. The 4KB pages will be handled correctly by the
balloon compaction logic.

Fixes: 83a8afa72e ("vmw_balloon: Compaction support")
Cc: David Hildenbrand <david@redhat.com>
Reported-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Nadav Amit <namit@vmware.com>
Link: https://lore.kernel.org/r/20190820160121.452-1-namit@vmware.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:57:07 +02:00
Nadav Amit
ba03a9bbd1 VMCI: Release resource if the work is already queued
Francois reported that VMware balloon gets stuck after a balloon reset,
when the VMCI doorbell is removed. A similar error can occur when the
balloon driver is removed with the following splat:

[ 1088.622000] INFO: task modprobe:3565 blocked for more than 120 seconds.
[ 1088.622035]       Tainted: G        W         5.2.0 #4
[ 1088.622087] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1088.622205] modprobe        D    0  3565   1450 0x00000000
[ 1088.622210] Call Trace:
[ 1088.622246]  __schedule+0x2a8/0x690
[ 1088.622248]  schedule+0x2d/0x90
[ 1088.622250]  schedule_timeout+0x1d3/0x2f0
[ 1088.622252]  wait_for_completion+0xba/0x140
[ 1088.622320]  ? wake_up_q+0x80/0x80
[ 1088.622370]  vmci_resource_remove+0xb9/0xc0 [vmw_vmci]
[ 1088.622373]  vmci_doorbell_destroy+0x9e/0xd0 [vmw_vmci]
[ 1088.622379]  vmballoon_vmci_cleanup+0x6e/0xf0 [vmw_balloon]
[ 1088.622381]  vmballoon_exit+0x18/0xcc8 [vmw_balloon]
[ 1088.622394]  __x64_sys_delete_module+0x146/0x280
[ 1088.622408]  do_syscall_64+0x5a/0x130
[ 1088.622410]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1088.622415] RIP: 0033:0x7f54f62791b7
[ 1088.622421] Code: Bad RIP value.
[ 1088.622421] RSP: 002b:00007fff2a949008 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[ 1088.622426] RAX: ffffffffffffffda RBX: 000055dff8b55d00 RCX: 00007f54f62791b7
[ 1088.622426] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 000055dff8b55d68
[ 1088.622427] RBP: 000055dff8b55d00 R08: 00007fff2a947fb1 R09: 0000000000000000
[ 1088.622427] R10: 00007f54f62f5cc0 R11: 0000000000000206 R12: 000055dff8b55d68
[ 1088.622428] R13: 0000000000000001 R14: 000055dff8b55d68 R15: 00007fff2a94a3f0

The cause for the bug is that when the "delayed" doorbell is invoked, it
takes a reference on the doorbell entry and schedules work that is
supposed to run the appropriate code and drop the doorbell entry
reference. The code ignores the fact that if the work is already queued,
it will not be scheduled to run one more time. As a result one of the
references would not be dropped. When the code waits for the reference
to get to zero, during balloon reset or module removal, it gets stuck.

Fix it. Drop the reference if schedule_work() indicates that the work is
already queued.

Note that this bug got more apparent (or apparent at all) due to
commit ce664331b2 ("vmw_balloon: VMCI_DOORBELL_SET does not check status").

Fixes: 83e2ec765b ("VMCI: doorbell implementation.")
Reported-by: Francois Rigault <rigault.francois@gmail.com>
Cc: Jorgen Hansen <jhansen@vmware.com>
Cc: Adit Ranadive <aditr@vmware.com>
Cc: Alexios Zavras <alexios.zavras@intel.com>
Cc: Vishnu DASA <vdasa@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nadav Amit <namit@vmware.com>
Reviewed-by: Vishnu Dasa <vdasa@vmware.com>
Link: https://lore.kernel.org/r/20190820202638.49003-1-namit@vmware.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:57:07 +02:00
Thierry Reding
6e7e5c7fbc hwmon: pwm-fan: Use platform_get_irq_optional()
The PWM fan interrupt is optional, so we don't want an error message in
the kernel log if it wasn't specified.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://lore.kernel.org/r/20190828083411.2496-2-thierry.reding@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:52:30 +02:00
Thierry Reding
8973ea4790 driver core: platform: Introduce platform_get_irq_optional()
In some cases the interrupt line of a device is optional. Introduce a
new platform_get_irq_optional() that works much like platform_get_irq()
but does not output an error on failure to find the interrupt.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20190828083411.2496-1-thierry.reding@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:52:30 +02:00
Chunfeng Yun
b2fcb285ad usb: xhci-mtk: add an optional xhci_ck clock
Some SoCs may have an optional clock xhci_ck (125M or 200M), it
usually uses the same PLL as sys_ck, so support it.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/1566542425-20082-2-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:50:25 +02:00
Chunfeng Yun
e74e8bbff6 dt-bindings: usb: mtk-xhci: add an optional xhci_ck clock
Add a new optional clock xhci_ck

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1566542425-20082-1-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:50:25 +02:00
Oliver Neukum
1426bd2c9f USB: cdc-wdm: fix race between write and disconnect due to flag abuse
In case of a disconnect an ongoing flush() has to be made fail.
Nevertheless we cannot be sure that any pending URB has already
finished, so although they will never succeed, they still must
not be touched.
The clean solution for this is to check for WDM_IN_USE
and WDM_DISCONNECTED in flush(). There is no point in ever
clearing WDM_IN_USE, as no further writes make sense.

The issue is as old as the driver.

Fixes: afba937e54 ("USB: CDC WDM driver")
Reported-by: syzbot+d232cca6ec42c2edb3fc@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190827103436.21143-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:48:38 +02:00
Geert Uytterhoeven
636bd02a7b usb: host: xhci: rcar: Fix typo in compatible string matching
It's spelled "renesas", not "renensas".

Due to this typo, RZ/G1M and RZ/G1N were not covered by the check.

Fixes: 2dc240a330 ("usb: host: xhci: rcar: retire use of xhci_plat_type_is()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20190827125112.12192-1-geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:48:38 +02:00
Nagarjuna Kristam
993cc87534 usb: host: xhci-tegra: Set DMA mask correctly
The Falcon microcontroller that runs the XUSB firmware and which is
responsible for exposing the XHCI interface can address only 40 bits of
memory. Typically that's not a problem because Tegra devices don't have
enough system memory to exceed those 40 bits.

However, if the ARM SMMU is enable on Tegra186 and later, the addresses
passed to the XUSB controller can be anywhere in the 48-bit IOV address
space of the ARM SMMU. Since the DMA/IOMMU API starts allocating from
the top of the IOVA space, the Falcon microcontroller is not able to
load the firmware successfully.

Fix this by setting the DMA mask to 40 bits, which will force the DMA
API to map the buffer for the firmware to an IOVA that is addressable by
the Falcon.

Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/1566989697-13049-1-git-send-email-nkristam@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:48:38 +02:00
Kai-Heng Feng
1902a01e2b USB: storage: ums-realtek: Whitelist auto-delink support
Auto-delink requires writing special registers to ums-realtek devices.
Unconditionally enable auto-delink may break newer devices.

So only enable auto-delink by default for the original three IDs,
0x0138, 0x0158 and 0x0159.

Realtek is working on a patch to properly support auto-delink for other
IDs.

BugLink: https://bugs.launchpad.net/bugs/1838886
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190827173450.13572-2-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:48:37 +02:00
Kai-Heng Feng
f6445b6b2f USB: storage: ums-realtek: Update module parameter description for auto_delink_en
The option named "auto_delink_en" is a bit misleading, as setting it to
false doesn't really disable auto-delink but let auto-delink be firmware
controlled.

Update the description to reflect the real usage of this parameter.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190827173450.13572-1-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:48:37 +02:00
Yoshihiro Shimoda
a349b95d7c usb: host: ohci: fix a race condition between shutdown and irq
This patch fixes an issue that the following error is
possible to happen when ohci hardware causes an interruption
and the system is shutting down at the same time.

[   34.851754] usb 2-1: USB disconnect, device number 2
[   35.166658] irq 156: nobody cared (try booting with the "irqpoll" option)
[   35.173445] CPU: 0 PID: 22 Comm: kworker/0:1 Not tainted 5.3.0-rc5 #85
[   35.179964] Hardware name: Renesas Salvator-X 2nd version board based on r8a77965 (DT)
[   35.187886] Workqueue: usb_hub_wq hub_event
[   35.192063] Call trace:
[   35.194509]  dump_backtrace+0x0/0x150
[   35.198165]  show_stack+0x14/0x20
[   35.201475]  dump_stack+0xa0/0xc4
[   35.204785]  __report_bad_irq+0x34/0xe8
[   35.208614]  note_interrupt+0x2cc/0x318
[   35.212446]  handle_irq_event_percpu+0x5c/0x88
[   35.216883]  handle_irq_event+0x48/0x78
[   35.220712]  handle_fasteoi_irq+0xb4/0x188
[   35.224802]  generic_handle_irq+0x24/0x38
[   35.228804]  __handle_domain_irq+0x5c/0xb0
[   35.232893]  gic_handle_irq+0x58/0xa8
[   35.236548]  el1_irq+0xb8/0x180
[   35.239681]  __do_softirq+0x94/0x23c
[   35.243253]  irq_exit+0xd0/0xd8
[   35.246387]  __handle_domain_irq+0x60/0xb0
[   35.250475]  gic_handle_irq+0x58/0xa8
[   35.254130]  el1_irq+0xb8/0x180
[   35.257268]  kernfs_find_ns+0x5c/0x120
[   35.261010]  kernfs_find_and_get_ns+0x3c/0x60
[   35.265361]  sysfs_unmerge_group+0x20/0x68
[   35.269454]  dpm_sysfs_remove+0x2c/0x68
[   35.273284]  device_del+0x80/0x370
[   35.276683]  hid_destroy_device+0x28/0x60
[   35.280686]  usbhid_disconnect+0x4c/0x80
[   35.284602]  usb_unbind_interface+0x6c/0x268
[   35.288867]  device_release_driver_internal+0xe4/0x1b0
[   35.293998]  device_release_driver+0x14/0x20
[   35.298261]  bus_remove_device+0x110/0x128
[   35.302350]  device_del+0x148/0x370
[   35.305832]  usb_disable_device+0x8c/0x1d0
[   35.309921]  usb_disconnect+0xc8/0x2d0
[   35.313663]  hub_event+0x6e0/0x1128
[   35.317146]  process_one_work+0x1e0/0x320
[   35.321148]  worker_thread+0x40/0x450
[   35.324805]  kthread+0x124/0x128
[   35.328027]  ret_from_fork+0x10/0x18
[   35.331594] handlers:
[   35.333862] [<0000000079300c1d>] usb_hcd_irq
[   35.338126] [<0000000079300c1d>] usb_hcd_irq
[   35.342389] Disabling IRQ #156

ohci_shutdown() disables all the interrupt and rh_state is set to
OHCI_RH_HALTED. In other hand, ohci_irq() is possible to enable
OHCI_INTR_SF and OHCI_INTR_MIE on ohci_irq(). Note that OHCI_INTR_SF
is possible to be set by start_ed_unlink() which is called:
 ohci_irq()
  -> process_done_list()
   -> takeback_td()
    -> start_ed_unlink()

So, ohci_irq() has the following condition, the issue happens by
&ohci->regs->intrenable = OHCI_INTR_MIE | OHCI_INTR_SF and
ohci->rh_state = OHCI_RH_HALTED:

	/* interrupt for some other device? */
	if (ints == 0 || unlikely(ohci->rh_state == OHCI_RH_HALTED))
		return IRQ_NOTMINE;

To fix the issue, ohci_shutdown() holds the spin lock while disabling
the interruption and changing the rh_state flag to prevent reenable
the OHCI_INTR_MIE unexpectedly. Note that io_watchdog_func() also
calls the ohci_shutdown() and it already held the spin lock, so that
the patch makes a new function as _ohci_shutdown().

This patch is inspired by a Renesas R-Car Gen3 BSP patch
from Tho Vu.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/1566877910-6020-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:48:37 +02:00
Schmid, Carsten
76da906ad7 usb: hcd: use managed device resources
Using managed device resources in usb_hcd_pci_probe() allows devm usage for
resource subranges, such as the mmio resource for the platform device
created to control host/device mode mux, which is a xhci extended
capability, and sits inside the xhci mmio region.

If managed device resources are not used then "parent" resource
is released before subrange at driver removal as .remove callback is
called before the devres list of resources for this device is walked
and released.

This has been observed with the xhci extended capability driver causing a
use-after-free which is now fixed.

An additional nice benefit is that error handling on driver initialisation
is simplified much.

Signed-off-by: Carsten Schmid <carsten_schmid@mentor.com>
Tested-by: Carsten Schmid <carsten_schmid@mentor.com>
Reviewed-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Fixes: fa31b3cb2a ("xhci: Add Intel extended cap / otg phy mux handling")
Cc: <stable@vger.kernel.org> # v4.19+

Link: https://lore.kernel.org/r/1566569488679.31808@mentor.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:48:37 +02:00
Colin Ian King
a684d8fd87 typec: tcpm: fix a typo in the comparison of pdo_max_voltage
There appears to be a typo in the comparison of pdo_max_voltage[i]
with the previous value, currently it is checking against the
array pdo_min_voltage rather than pdo_max_voltage. I believe this
is a typo. Fix this.

Addresses-Coverity: ("Copy-paste error")
Fixes: 5007e1b5db ("typec: tcpm: Validate source and sink caps")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20190822135212.10195-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:48:37 +02:00
Greg Kroah-Hartman
d4e34999a7 Updates to LKDTM for -next
- split WARNING into two tests: with message and without
 - add prototype-granularity forward CFI test
 -----BEGIN PGP SIGNATURE-----
 Comment: Kees Cook <kees@outflux.net>
 
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Merge tag 'lkdtm-next' of https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into char-misc-next

Kees writes:

Updates to LKDTM for -next

- split WARNING into two tests: with message and without
- add prototype-granularity forward CFI test

* tag 'lkdtm-next' of https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  lkdtm: Split WARNING into separate tests
  lkdtm: Add Control Flow Integrity test
2019-08-28 22:37:55 +02:00
Thomas Gleixner
ddaedbbece Documentation/process: Embargoed hardware security issues
To address the requirements of embargoed hardware issues, like Meltdown,
Spectre, L1TF etc. it is necessary to define and document a process for
handling embargoed hardware security issues.

Following the discussion at the maintainer summit 2018 in Edinburgh
(https://lwn.net/Articles/769417/) the volunteered people have worked
out a process and a Memorandum of Understanding.  The latter addresses
the fact that the Linux kernel community cannot sign NDAs for various
reasons.

The initial contact point for hardware security issues is different from
the regular kernel security contact to provide a known and neutral
interface for hardware vendors and researchers. The initial primary
contact team is proposed to be staffed by Linux Foundation Fellows, who
are not associated to a vendor or a distribution and are well connected
in the industry as a whole.

The process is designed with the experience of the past incidents in
mind and tries to address the remaining gaps, so future (hopefully rare)
incidents can be handled more efficiently.  It won't remove the fact,
that most of this has to be done behind closed doors, but it is set up
to avoid big bureaucratic hurdles for individual developers.

The process is solely for handling hardware security issues and cannot
be used for regular kernel (software only) security bugs.

This memo can help with hardware companies who, and I quote, "[my
manager] doesn't want to bet his job on the list keeping things secret."
This despite numerous leaks directly from that company over the years,
and none ever so far from the kernel security team.  Cognitive
dissidence seems to be a requirement to be a good manager.

To accelerate the adoption of this  process, we introduce the concept of
ambassadors in participating companies. The ambassadors are there to
guide people to comply with the process, but are not automatically
involved in the disclosure of a particular incident.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Acked-by: Ben Hutchings <ben@decadent.org.uk>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/r/20190815212505.GC12041@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:36:07 +02:00
Raul E Rangel
b9bc7b8b1e lkdtm/bugs: fix build error in lkdtm_EXHAUST_STACK
lkdtm/bugs.c:94:2: error: format '%d' expects argument of type 'int', but argument 2 has type 'long unsigned int' [-Werror=format=]
  pr_info("Calling function with %d frame size to depth %d ...\n",
  ^
THREAD_SIZE is defined as a unsigned long, cast CONFIG_FRAME_WARN to
unsigned long as well.

Fixes: 24cccab42c ("lkdtm/bugs: Adjust recursion test to avoid elision")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Acked-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20190827173619.170065-1-rrangel@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:33:44 +02:00
Tomas Winkler
587f174077 mei: me: add Tiger Lake point LP device ID
Add Tiger Lake Point device ID for TGP LP.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190819103210.32748-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:30:15 +02:00
Krzysztof Wilczynski
4a2dbeddd3 PCI/ACPI: Remove unnecessary struct hotplug_program_ops
Move the ACPI-specific structs hpx_type0, hpx_type1, hpx_type2 and
hpx_type3 to drivers/pci/pci-acpi.c as they are not used anywhere else.
Then remove the struct hotplug_program_ops that has been shared between
drivers/pci/probe.c and drivers/pci/pci-acpi.c from drivers/pci/pci.h as it
is no longer needed.

The struct hotplug_program_ops was added by 87fcf12e84 ("PCI/ACPI: Remove
the need for 'struct hotplug_params'") and replaced previously used struct
hotplug_params enabling the support for the _HPX Type 3 Setting Record that
was added by f873c51a15 ("PCI/ACPI: Implement _HPX Type 3 Setting
Record").

The new struct allowed for the static functions such program_hpx_type0(),
program_hpx_type1(), etc., from the drivers/pci/probe.c to be called from
the function pci_acpi_program_hp_params() in the drivers/pci/pci-acpi.c.

Previously a programming of _HPX Type 0 was as follows:

  drivers/pci/probe.c:

    program_hpx_type0()
    ...
    pci_configure_device()
      hp_ops = {
        .program_type0 = program_hpx_type0,
        ...
      }
      pci_acpi_program_hp_params(&hp_ops)

  drivers/pci/pci-acpi.c:

    pci_acpi_program_hp_params(&hp_ops)
      acpi_run_hpx(hp_ops)
        decode_type0_hpx_record()
          hp_ops->program_type0     # program_hpx_type0() called via hp_ops

After the ACPI-specific functions, structs, enums, etc., have been moved to
drivers/pci/pci-acpi.c there is no need for the hotplug_program_ops as all
of the _HPX Type 0, 1, 2 and 3 are directly accessible.

Link: https://lore.kernel.org/r/20190827094951.10613-4-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-08-28 15:29:14 -05:00
Alexander Shishkin
9c78255fdd intel_th: pci: Add Tiger Lake support
This adds support for the Trace Hub in Tiger Lake PCH.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: stable@vger.kernel.org # v4.14+
Link: https://lore.kernel.org/r/20190821074955.3925-5-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:29:02 +02:00
Alexander Shishkin
164eb56e3b intel_th: pci: Add support for another Lewisburg PCH
Add support for the Trace Hub in another Lewisburg PCH.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: stable@vger.kernel.org # v4.14+
Link: https://lore.kernel.org/r/20190821074955.3925-4-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:29:02 +02:00
Ding Xiang
961b6ffe0e stm class: Fix a double free of stm_source_device
In the error path of stm_source_register_device(), the kfree is
unnecessary, as the put_device() before it ends up calling
stm_source_device_release() to free stm_source_device, leading to
a double free at the outer kfree() call. Remove it.

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes: 7bd1d4093c ("stm class: Introduce an abstraction for System Trace Module devices")
Link: https://lore.kernel.org/linux-arm-kernel/1563354988-23826-1-git-send-email-dingxiang@cmss.chinamobile.com/
Cc: stable@vger.kernel.org # v4.4+
Link: https://lore.kernel.org/r/20190821074955.3925-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:29:01 +02:00
Greg Kroah-Hartman
c78439f8b9 FPGA Manager fixes for 5.3
A single fix for the altera-ps-spi driver that fixes the behavior when
 the driver receives -EPROBE_DEFER when trying to obtain a GPIO desc.
 
 Signed-off-by: Moritz Fischer <mdf@kernel.org>
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Merge tag 'fpga-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-linus

Moritz writes:

FPGA Manager fixes for 5.3

A single fix for the altera-ps-spi driver that fixes the behavior when
the driver receives -EPROBE_DEFER when trying to obtain a GPIO desc.

Signed-off-by: Moritz Fischer <mdf@kernel.org>

* tag 'fpga-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
  fpga: altera-ps-spi: Fix getting of optional confd gpio
2019-08-28 22:26:47 +02:00
Krzysztof Wilczynski
8c3aac6e1b PCI/ACPI: Move _HPP & _HPX functions to pci-acpi.c
Move program_hpx_type0(), program_hpx_type1(), etc., and enums
hpx_type3_dev_type, hpx_type3_fn_type and hpx_type3_cfg_loc to
drivers/pci/pci-acpi.c as these functions and enums are ACPI-specific.

Move structs hpx_type0, hpx_type1, hpx_type2 and hpx_type3 to
drivers/pci/pci.h as these are shared between drivers/pci/pci-acpi.c and
drivers/pci/probe.c.

Link: https://lore.kernel.org/r/20190827094951.10613-3-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-08-28 15:25:53 -05:00
Greg Kroah-Hartman
a642a0b333 MAINTAINERS: add entry for LICENSES and SPDX stuff
Thomas and I seem to have become the "unofficial" maintainers for these
files and questions about SPDX things.  So let's make it official.

Reported-by: "Darrick J. Wong" <darrick.wong@oracle.com>
Grumpily-acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Darrick J. Wong <darrick.wong@oracle.com>
Link: https://lore.kernel.org/r/20190827195310.GA30618@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:24:22 +02:00
Boris Brezillon
3ef2f119bd drm/msm: Use drm_attach_bridge() to attach a bridge to an encoder
This is part of our attempt to make the bridge chain a double-linked
list based on the generic list helpers. In order to do that, we must
patch all drivers manipulating the encoder->bridge field directly.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826152649.13820-9-boris.brezillon@collabora.com
2019-08-28 22:22:49 +02:00
YueHaibing
3982f1df00 staging: most: sound: Fix error path of audio_init
If most_register_configfs_subsys() fails, we should
call most_deregister_component() do cleanup.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 919c03ae11 ("staging: most: enable configfs support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190827131346.12704-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:22:13 +02:00
Stephen Brennan
a1617c8c3d staging: rtl8192u: Fix indentation
Checkpatch reports WARNING:SUSPECT_CODE_INDENT in several places. Fix
this by aligning code properly with tabs.

Signed-off-by: Stephen Brennan <stephen@brennan.io>
Link: https://lore.kernel.org/r/20190828043542.3753-1-stephen@brennan.io
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-28 22:22:13 +02:00
Arnaldo Carvalho de Melo
2da39f1cc3 perf evlist: Remove needless util.h from evlist.h
There is no need for that util/util.h include there and, remove it,
pruning the include tree, fix the fallout by adding necessary headers to
places that were getting needed includes indirectly from evlist.h ->
util.h.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-s9f7uve8wvykr5itcm7m7d8q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-28 17:19:35 -03:00
Arnaldo Carvalho de Melo
efa73d37c1 perf tools: Remove needless util.h include from builtin.h
And fix up places where util.h is needed but was obtained indirectly via
builtin.h.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-a01ig3c4t76ye5wkqmtgk9qn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-28 17:19:34 -03:00
Igor Lubashev
d06e5fad8c perf tools: Warn that perf_event_paranoid can restrict kernel symbols
Warn that /proc/sys/kernel/perf_event_paranoid can also restrict kernel
symbols.

Signed-off-by: Igor Lubashev <ilubashe@akamai.com>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1566869956-7154-6-git-send-email-ilubashe@akamai.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-28 17:19:28 -03:00
Igor Lubashev
8859aedefe perf symbols: Use CAP_SYSLOG with kptr_restrict checks
The kernel is using CAP_SYSLOG capability instead of uid==0 and euid==0
when checking kptr_restrict. Make perf do the same.

Also, the kernel is a more restrictive than "no restrictions" in case of
kptr_restrict==0, so add the same logic to perf.

Signed-off-by: Igor Lubashev <ilubashe@akamai.com>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1566869956-7154-5-git-send-email-ilubashe@akamai.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-28 17:19:19 -03:00
Igor Lubashev
aa97293ff1 perf evsel: Kernel profiling is disallowed only when perf_event_paranoid > 1
Perf was too restrictive about sysctl kernel.perf_event_paranoid. The
kernel only disallows profiling when perf_event_paranoid > 1. Make perf
do the same.

Committer testing:

For a non-root user:

  $ id
  uid=1000(acme) gid=1000(acme) groups=1000(acme),10(wheel) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
  $

Before:

We were restricting it to just userspace (:u suffix) even for a
workload started by the user:

  $ perf record sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.001 MB perf.data (8 samples) ]
  $ perf evlist
  cycles:u
  $ perf evlist -v
  cycles:u: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|PERIOD, read_format: ID, disabled: 1, inherit: 1, exclude_kernel: 1, mmap: 1, comm: 1, freq: 1, enable_on_exec: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1
  $ perf report --stdio
  # To display the perf.data header info, please use --header/--header-only options.
  #
  # Total Lost Samples: 0
  #
  # Samples: 8  of event 'cycles:u'
  # Event count (approx.): 1040396
  #
  # Overhead  Command  Shared Object     Symbol
  # ........  .......  ................  ......................
  #
      68.36%  sleep    libc-2.29.so      [.] _dl_addr
      27.33%  sleep    ld-2.29.so        [.] dl_main
       3.80%  sleep    ld-2.29.so        [.] _dl_setup_hash
  #
  # (Tip: Order by the overhead of source file name and line number: perf report -s srcline)
  #
  $
  $

After:

When the kernel allows profiling the kernel in that scenario:

  $ perf record sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.023 MB perf.data (11 samples) ]
  $ perf evlist
  cycles
  $ perf evlist -v
  cycles: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|PERIOD, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, enable_on_exec: 1, task: 1, precise_ip: 3, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1
  $
  $ perf report --stdio
  # To display the perf.data header info, please use --header/--header-only options.
  #
  # Total Lost Samples: 0
  #
  # Samples: 11  of event 'cycles'
  # Event count (approx.): 1601964
  #
  # Overhead  Command  Shared Object     Symbol
  # ........  .......  ................  ..........................
  #
      28.14%  sleep    [kernel.vmlinux]  [k] __rb_erase_color
      27.21%  sleep    [kernel.vmlinux]  [k] unmap_page_range
      27.20%  sleep    ld-2.29.so        [.] __tunable_get_val
      15.24%  sleep    [kernel.vmlinux]  [k] thp_get_unmapped_area
       1.96%  perf     [kernel.vmlinux]  [k] perf_event_exec
       0.22%  perf     [kernel.vmlinux]  [k] native_sched_clock
       0.02%  perf     [kernel.vmlinux]  [k] intel_bts_enable_local
       0.00%  perf     [kernel.vmlinux]  [k] native_write_msr
  #
  # (Tip: Boolean options have negative forms, e.g.: perf report --no-children)
  #
  $

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Igor Lubashev <ilubashe@akamai.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1566869956-7154-4-git-send-email-ilubashe@akamai.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-28 17:19:05 -03:00
Igor Lubashev
dda1bf8ea7 perf tools: Use CAP_SYS_ADMIN with perf_event_paranoid checks
The kernel is using CAP_SYS_ADMIN instead of euid==0 to override
perf_event_paranoid check. Make perf do the same.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> # coresight part
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1566869956-7154-3-git-send-email-ilubashe@akamai.com
Signed-off-by: Igor Lubashev <ilubashe@akamai.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-28 17:18:08 -03:00
Igor Lubashev
e9a6882f26 perf event: Check ref_reloc_sym before using it
Check for ref_reloc_sym before using it instead of checking
symbol_conf.kptr_restrict and relying solely on that check.

Reported-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Igor Lubashev <ilubashe@akamai.com>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1566869956-7154-2-git-send-email-ilubashe@akamai.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-28 17:17:51 -03:00
Boris Brezillon
ee68c743f8 drm: Stop including drm_bridge.h from drm_crtc.h
We are about to add a drm_bridge_state that inherits from
drm_private_state which is defined in drm_atomic.h. Problem is,
drm_atomic.h includes drm_crtc.h which in turn includes drm_bridge.h,
leading to "drm_private_state has incomplete type" error.

Let's force all users of the drm_bridge API to explicitly include
drm_bridge.h.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826152649.13820-2-boris.brezillon@collabora.com
2019-08-28 22:11:03 +02:00
Krzysztof Wilczynski
e2797ad31f PCI/ACPI: Rename _HPX structs from hpp_* to hpx_*
The names of the hpp_type0, hpp_type1 and hpp_type2 structs suggest that
they're related to _HPP, when in fact they're related to _HPX.

The struct hpp_type0 denotes an _HPX Type 0 setting record that supersedes
the _HPP setting record, and it has been used interchangeably for _HPP as
per the ACPI specification (see version 6.3, section 6.2.9.1) which states
that it should be applied to PCI, PCI-X and PCI Express devices, with
settings being ignored if they are not applicable.

Rename them to hpx_type0, hpx_type1 and hpx_type2 to reflect their relation
to _HPX rather than _HPP.

Link: https://lore.kernel.org/r/20190827094951.10613-2-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-08-28 15:09:45 -05:00
Madhumitha Tolakanahalli Pradeep
9770f22077 drm/i915/tgl: Enabling DSC on Pipe A for TGL
DSC was not supported on Pipe A for previous platforms. Tigerlake onwards,
all the pipes support DSC. Hence, the DSC and FEC restriction on
Pipe A needs to be removed.

v2: Changes in the logic around removing the restriction around
    Pipe A (Manasi, Lucas)

Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190823004655.28905-1-madhumitha.tolakanahalli.pradeep@intel.com
2019-08-28 13:03:39 -07:00
Thiago Jung Bauermann
556d971bda ima: Fix use after free in ima_read_modsig()
If we can't parse the PKCS7 in the appended modsig, we will free the modsig
structure and then access one of its members to determine the error value.

Fixes: 39b0709636 ("ima: Implement support for module-style appended signatures")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Reviewed-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2019-08-28 15:01:24 -04:00
Marina Varshaver
25948b87dd net/mlx5e: Support TSO and TX checksum offloads for IP-in-IP
tunnels

Add TX offloads support for IP-in-IP tunneled packets by reporting
the needed netdev features.

Signed-off-by: Marina Varshaver <marinav@mellanox.com>
Signed-off-by: Avihu Hagag <avihuh@mellanox.com>
Reviewed-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-28 11:49:05 -07:00
Marina Varshaver
e3a53bc536 net/mlx5e: Improve stateless offload capability check
Use generic function for checking tunnel stateless offload capability
instead of separate macros.

Signed-off-by: Marina Varshaver <marinav@mellanox.com>
Reviewed-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-28 11:49:05 -07:00
Aya Levin
a795d8db2a net/mlx5e: Support RSS for IP-in-IP and IPv6 tunneled packets
Add support for inner header RSS on IP-in-IP and IPv6 tunneled packets.

Add rules to the steering table regarding outer IP header, with
IPv4/6->IP-in-IP. Tunneled packets with protocol numbers: 0x4 (IP-in-IP)
and 0x29 (IPv6) are RSS-ed on the inner IP header.
Separate FW dependencies between flow table inner IP capabilities and
GRE offload support. Allowing this feature even if GRE offload is not
supported.  Tested with multi stream TCP traffic tunneled with IPnIP.
Verified that:
Without this patch, only a single RX ring was processing the traffic.
With this patch, multiple RX rings were processing the traffic.
Verified with and without GRE offload support.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-28 11:49:04 -07:00
Aya Levin
a49e1f31ae net/mlx5e: Change function's position to a more fitting file
Move function which indicates whether tunnel inner flow table is
supported from en.h to en_fs.c. It fits better right after tunnel
protocol rules definitions.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-28 11:49:04 -07:00
Moshe Shemesh
0cfafd4b4d net/mlx5e: Add device out of buffer counter
Added the following packets drop counter:
Device out of buffer - counts packets which were dropped due to full
device internal receive queue.
This counter will be shown on ethtool as a new counter called
dev_out_of_buffer.
The counter is read from FW by command QUERY_VNIC_ENV.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-28 11:49:04 -07:00
Maxim Mikityanskiy
45f171b118 net/mlx5e: Support LAG TX port affinity distribution
When the VF LAG is in use, round-robin the TX affinity of channels among
the different ports, if supported by the firmware. Create a set of TISes
per port, while doing round-robin of the channels over the different
sets. Let all SQs of a channel share the same set of TISes.

If lag_tx_port_affinity HCA cap bit is supported, num_lag_ports > 1 and
we aren't the LACP owner (PF in the regular use), assign the affinities,
otherwise use tx_affinity == 0 in TIS context to let the FW assign the
affinities itself. The TISes of the LACP owner are mapped only to the
native physical port.

For VFs, the starting port for round-robin is determined by its vhca_id,
because a VF may have only one channel if attached to a single-core VM.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Mark Bloch <markb@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-28 11:49:03 -07:00
Tariq Toukan
3c14562663 net/mlx5e: Expose new function for TIS destroy loop
For better modularity and code sharing.
Function internal change to be introduced in the next patches.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-28 11:49:03 -07:00
Erez Alfasi
d5e1c0ef55 net/mlx5e: ethtool, Fix a typo in WOL function names
Fix a typo in 'mlx5e_refomrat_wol_mode_mlx5_to_linux' and
'mlx5e_refomrat_wol_mode_linux_to_mlx5' function names:
"refomrat" -> "reformat".

Fixes: 928cfe8745 ("net/mlx5e: Wake On LAN support")
Signed-off-by: Erez Alfasi <ereza@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-28 11:49:03 -07:00