Commit Graph

943630 Commits

Author SHA1 Message Date
David S. Miller
f8deaea06f Merge branch 'mlxsw-Add-support-for-buffer-drop-traps'
Ido Schimmel says:

====================
mlxsw: Add support for buffer drop traps

Petr says:

A recent patch set added the ability to mirror buffer related drops
(e.g., early drops) through a netdev. This patch set adds the ability to
trap such packets to the local CPU for analysis.

The trapping towards the CPU is configured by using tc-trap action
instead of tc-mirred as was done when the packets were mirrored through
a netdev. A future patch set will also add the ability to sample the
dropped packets using tc-sample action.

The buffer related drop traps are added to devlink, which means that the
dropped packets can be reported to user space via the kernel's
drop_monitor module.

Patch set overview:

Patch #1 adds the early_drop trap to devlink

Patch #2 adds extack to a few devlink operations to facilitate better
error reporting to user space. This is necessary - among other things -
because the action of buffer drop traps cannot be changed in mlxsw

Patch #3 performs a small refactoring in mlxsw, patch #4 fixes a bug that
this patchset would trigger.

Patches #5-#6 add the infrastructure required to support different traps
/ trap groups in mlxsw per-ASIC. This is required because buffer drop
traps are not supported by Spectrum-1

Patch #7 extends mlxsw to register the early_drop trap

Patch #8 adds the offload logic for the "trap" action at a qevent block.

Patch #9 adds a mlxsw-specific selftest.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:47 -07:00
Petr Machata
8fb6ac457d selftests: mlxsw: RED: Test offload of trapping on RED qevents
Add a selftest for RED early_drop and mark qevents when a trap action is
attached at the associated block.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Petr Machata
54a9238589 mlxsw: spectrum_qdisc: Offload action trap for qevents
When offloading action trap on a qevent, pass to_dev of NULL to the SPAN
module to trigger the mirror to the CPU port. Query the buffer drops
policer and use it for policing of the trapped traffic.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Ido Schimmel
6687e953f4 mlxsw: spectrum_trap: Add early_drop trap
As previously explained, packets that are dropped due to buffer related
reasons (e.g., tail drop, early drop) can be mirrored to the CPU port.
These packets are then trapped with one of the "mirror session" traps
and their CQE includes the reason for which the packet was mirrored.

Register with devlink a new trap, early_drop, and initialize the
corresponding Rx listener with the appropriate mirror reason. Return an
error in case user tries to change the traps' action, as this is not
supported.

Since Spectrum-1 does not support these traps, the above is only done
for Spectrum-2 onwards.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Ido Schimmel
869c7be940 mlxsw: spectrum_trap: Allow for per-ASIC traps initialization
Subsequent patches will need to register different traps for Spectrum-1
and Spectrum-2 onwards.

Enable that by invoking a per-ASIC operation during traps
initialization.

Reviewed-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Ido Schimmel
36d1fd687d mlxsw: spectrum_trap: Allow for per-ASIC trap groups initialization
Subsequent patches will need to register different trap groups for
Spectrum-1 and Spectrum-2 onwards.

Enable that by invoking a per-ASIC operation during trap groups
initialization.

Reviewed-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Petr Machata
928345c08b mlxsw: spectrum_span: On policer_id_base_ref_count, use dec_and_test
When unsetting policer base, the SPAN code currently uses refcount_dec().
However that function splats when the counter reaches zero, because
reaching zero without actually testing is in general indicative of a
missing cleanup. There is no cleanup to be done here, but nonetheless, use
refcount_dec_and_test() as required.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Ido Schimmel
76ba292cc7 mlxsw: spectrum_trap: Use 'size_t' for array sizes
Use 'size_t' instead of 'u64' for array sizes, as this this is correct
type to use for expressions involving sizeof().

Suggested-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Ido Schimmel
c88e11e047 devlink: Pass extack when setting trap's action and group's parameters
A later patch will refuse to set the action of certain traps in mlxsw
and also to change the policer binding of certain groups. Pass extack so
that failure could be communicated clearly to user space.

Reviewed-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Amit Cohen
08e335f6ad devlink: Add early_drop trap
Add the packet trap that can report packets that were ECN marked due to RED
AQM.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Linus Torvalds
09a0bd0776 platform-drivers-x86 for v5.9-1
* ASUS WMI driver honors BAT1 name of the battery
   (quite a few new laptops are using it)
 * Dell WMI driver supports new key codes and backlight events
 * ThinkPad ACPI driver now may use standard charge threshold interface,
   it also has been updated to provide Laptop or Desktop mode to the user
 * Intel Speed Select Technology gained support on Sapphire Rapids platform
 * Regular update of Speed Select Technology tools
 * Mellanox has been updated to support complex attributes
 * PMC core driver has been fixed to show correct names for LPM0 register
 * HTTP links were replaced by HTTPS ones where it applies
 * Miscellaneous fixes and cleanups here and there
 
 The following is an automated git shortlog grouped by driver:
 
 acerhdf:
  -  Replace HTTP links with HTTPS ones
 
 Add new intel_atomisp2_led driver:
  - Add new intel_atomisp2_led driver
 
 apple-gmux:
  -  Replace HTTP links with HTTPS ones
 
 asus-nb-wmi:
  -  Drop duplicate DMI quirk structures
  -  add support for ASUS ROG Zephyrus G14 and G15
 
 asus-wmi:
  -  allow BAT1 battery name
 
 dell-wmi:
  -  add new dmi mapping for keycode 0xffff
  -  add new keymap type 0x0012
  -  add new backlight events
 
 intel_cht_int33fe:
  -  Drop double check for ACPI companion device
 
 intel-hid:
  -  Fix return value check in check_acpi_dev()
 
 intel_pmc_core:
  -  fix bound check in pmc_core_mphy_pg_show()
  -  update TGL's LPM0 reg bit map name
 
 intel-vbtn:
  -  Fix return value check in check_acpi_dev()
 
 ISST:
  -  drop a duplicated word in isst_if.h
  -  Add new PCI device ids
 
 pcengines-apuv2:
  -  revert wiring up simswitch GPIO as LED
 
 platform/mellanox:
  -  Introduce string_upper() and string_lower() helpers
  -  Add string_upper() and string_lower() tests
  -  Extend FAN platform data description
  -  Add more definitions for system attributes
  -  Add new attribute for mlxreg-io sysfs interfaces
  -  Add presence register field for FAN devices
  -  Add support for complex attributes
  -  mlxreg-io: Add support for complex attributes
  -  mlxreg-hotplug: Add environmental data to uevent
  -  mlxreg-hotplug: Use capability register for attribute creation
  -  mlxreg-hotplug: Modify module license
 
 system76-acpi:
  -  Fix brightness_set schedule while atomic
 
 thinkpad_acpi:
  -  Make some symbols static
  -  add documentation for battery charge control
  -  use standard charge control attribute names
  -  remove unused defines
  -  Replace HTTP links with HTTPS ones
  -  not loading brightness_init when _BCL invalid
  -  lap or desk mode interface
  -  Revert "Use strndup_user() in dispatch_proc_write()"
 
 tools/power/x86/intel-speed-select:
  -  Update version for v5.9
  -  Add retries for mail box commands
  -  Add option to delay mbox commands
  -  Ignore -o option processing on error
  -  Change path for caching topology info
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Merge tag 'platform-drivers-x86-v5.9-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:

 - ASUS WMI driver honors BAT1 name of the battery (quite a few new
   laptops are using it)

 - Dell WMI driver supports new key codes and backlight events

 - ThinkPad ACPI driver now may use standard charge threshold interface,
   it also has been updated to provide Laptop or Desktop mode to the
   user

 - Intel Speed Select Technology gained support on Sapphire Rapids
   platform

 - Regular update of Speed Select Technology tools

 - Mellanox has been updated to support complex attributes

 - PMC core driver has been fixed to show correct names for LPM0
   register

 - HTTP links were replaced by HTTPS ones where it applies

 - Miscellaneous fixes and cleanups here and there

* tag 'platform-drivers-x86-v5.9-1' of git://git.infradead.org/linux-platform-drivers-x86: (42 commits)
  platform/x86: asus-nb-wmi: Drop duplicate DMI quirk structures
  platform/x86: thinkpad_acpi: Make some symbols static
  platform/x86: thinkpad_acpi: add documentation for battery charge control
  platform/x86: thinkpad_acpi: use standard charge control attribute names
  platform/x86: thinkpad_acpi: remove unused defines
  platform/x86: ISST: drop a duplicated word in isst_if.h
  tools/power/x86/intel-speed-select: Update version for v5.9
  tools/power/x86/intel-speed-select: Add retries for mail box commands
  tools/power/x86/intel-speed-select: Add option to delay mbox commands
  tools/power/x86/intel-speed-select: Ignore -o option processing on error
  tools/power/x86/intel-speed-select: Change path for caching topology info
  platform/x86: acerhdf: Replace HTTP links with HTTPS ones
  platform/x86: apple-gmux: Replace HTTP links with HTTPS ones
  platform/x86: pcengines-apuv2: revert wiring up simswitch GPIO as LED
  platform/x86: mlx-platform: Extend FAN platform data description
  platform_data/mlxreg: Add presence register field for FAN devices
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform/mellanox: mlxreg-io: Add support for complex attributes
  platform/x86: mlx-platform: Add more definitions for system attributes
  platform_data/mlxreg: Add support for complex attributes
  ...
2020-08-03 18:02:53 -07:00
YueHaibing
80fbbb1672 fib: Fix undef compile warning
net/core/fib_rules.c:26:7: warning: "CONFIG_IP_MULTIPLE_TABLES" is not defined, evaluates to 0 [-Wundef]
 #elif CONFIG_IP_MULTIPLE_TABLES
       ^~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 8b66a6fd34 ("fib: fix another fib_rules_ops indirect call wrapper problem")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-By: Brian Vazquez <brianvv@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:01:49 -07:00
Geliang Tang
190f8b060e mptcp: use mptcp_for_each_subflow in mptcp_stream_accept
Use mptcp_for_each_subflow in mptcp_stream_accept instead of
open-coding.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:01:14 -07:00
David S. Miller
ee494f42a3 A few more changes, notably:
* handle new SAE (WPA3 authentication) status codes in the correct way
  * fix a while that should be an if instead, avoiding infinite loops
  * handle beacon filtering changing better
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Merge tag 'mac80211-next-for-davem-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
A few more changes, notably:
 * handle new SAE (WPA3 authentication) status codes in the correct way
 * fix a while that should be an if instead, avoiding infinite loops
 * handle beacon filtering changing better
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:00:22 -07:00
Jisheng Zhang
01f4d47a5b net: stmmac: fix failed to suspend if phy based WOL is enabled
With the latest net-next tree, if test suspend/resume after enabling
WOL, we get error as below:

[  487.086365] dpm_run_callback(): mdio_bus_suspend+0x0/0x30 returns -16
[  487.086375] PM: Device stmmac-0:00 failed to suspend: error -16

-16 means -EBUSY, this is because I didn't enable wakeup of the correct
device when implementing phy based WOL feature. To be honest, I caught
the issue when implementing phy based WOL and then fix it locally, but
forgot to amend the phy based wol patch. Today, I found the issue by
testing net-next tree.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 17:59:39 -07:00
Ioana-Ruxandra Stăncioi
88fab21c69 seg6_iptunnel: Refactor seg6_lwt_headroom out of uapi header
Refactor the function seg6_lwt_headroom out of the seg6_iptunnel.h uapi
header, because it is only used in seg6_iptunnel.c. Moreover, it is only
used in the kernel code, as indicated by the "#ifdef __KERNEL__".

Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Ioana-Ruxandra Stăncioi <stancioi@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 17:57:40 -07:00
Jianfeng Wang
730e700e2c tcp: apply a floor of 1 for RTT samples from TCP timestamps
For retransmitted packets, TCP needs to resort to using TCP timestamps
for computing RTT samples. In the common case where the data and ACK
fall in the same 1-millisecond interval, TCP senders with millisecond-
granularity TCP timestamps compute a ca_rtt_us of 0. This ca_rtt_us
of 0 propagates to rs->rtt_us.

This value of 0 can cause performance problems for congestion control
modules. For example, in BBR, the zero min_rtt sample can bring the
min_rtt and BDP estimate down to 0, reduce snd_cwnd and result in a
low throughput. It would be hard to mitigate this with filtering in
the congestion control module, because the proper floor to apply would
depend on the method of RTT sampling (using timestamp options or
internally-saved transmission timestamps).

This fix applies a floor of 1 for the RTT sample delta from TCP
timestamps, so that seq_rtt_us, ca_rtt_us, and rs->rtt_us will be at
least 1 * (USEC_PER_SEC / TCP_TS_HZ).

Note that the receiver RTT computation in tcp_rcv_rtt_measure() and
min_rtt computation in tcp_update_rtt_min() both already apply a floor
of 1 timestamp tick, so this commit makes the code more consistent in
avoiding this edge case of a value of 0.

Signed-off-by: Jianfeng Wang <jfwang@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Kevin Yang <yyd@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 17:54:03 -07:00
Linus Torvalds
e53bc3ff99 Boris is on vacation and he asked us to send you the pending RAS bits:
- Print the PPIN field on CPUs that fill them out
  - Fix an MCE injection bug
  - Simplify a kzalloc in dev_mcelog_init_device()
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'ras-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RAS updates from Ingo Molnar:
 "Boris is on vacation and he asked us to send you the pending RAS bits:

   - Print the PPIN field on CPUs that fill them out

   - Fix an MCE injection bug

   - Simplify a kzalloc in dev_mcelog_init_device()"

* tag 'ras-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce, EDAC/mce_amd: Print PPIN in machine check records
  x86/mce/dev-mcelog: Use struct_size() helper in kzalloc()
  x86/mce/inject: Fix a wrong assignment of i_mce.status
2020-08-03 17:42:23 -07:00
Linus Torvalds
a92ad11fb2 A single commit which sets the X86_FEATURE_TSC_KNOWN_FREQ flag for Xen guests,
to avoid recalibration.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-timers-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 timer update from Ingo Molnar:
 "Set the X86_FEATURE_TSC_KNOWN_FREQ flag for Xen guests, to avoid
  recalibration"

* tag 'x86-timers-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/xen/time: Set the X86_FEATURE_TSC_KNOWN_FREQ flag in xen_tsc_khz()
2020-08-03 17:41:06 -07:00
Linus Torvalds
5183a617ec The biggest change is the removal of SGI UV1 support, which allowed the
removal of the legacy EFI old_mmap code as well.
 
 This removes quite a bunch of old code & quirks.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-platform-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform updates from Ingo Molnar:
 "The biggest change is the removal of SGI UV1 support, which allowed
  the removal of the legacy EFI old_mmap code as well.

  This removes quite a bunch of old code & quirks"

* tag 'x86-platform-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/efi: Remove unused EFI_UV1_MEMMAP code
  x86/platform/uv: Remove uv bios and efi code related to EFI_UV1_MEMMAP
  x86/efi: Remove references to no-longer-used efi_have_uv1_memmap()
  x86/efi: Delete SGI UV1 detection.
  x86/platform/uv: Remove efi=old_map command line option
  x86/platform/uv: Remove vestigial mention of UV1 platform from bios header
  x86/platform/uv: Remove support for UV1 platform from uv
  x86/platform/uv: Remove support for uv1 platform from uv_hub
  x86/platform/uv: Remove support for UV1 platform from uv_bau
  x86/platform/uv: Remove support for UV1 platform from uv_mmrs
  x86/platform/uv: Remove support for UV1 platform from x2apic_uv_x
  x86/platform/uv: Remove support for UV1 platform from uv_tlb
  x86/platform/uv: Remove support for UV1 platform from uv_time
2020-08-03 17:38:43 -07:00
Linus Torvalds
e96ec8cf9c The biggest change is to not sync the vmalloc and ioremap ranges for x86-64 anymore.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mmm update from Ingo Molnar:
 "The biggest change is to not sync the vmalloc and ioremap ranges for
  x86-64 anymore"

* tag 'x86-mm-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/64: Make sync_global_pgds() static
  x86/mm/64: Do not sync vmalloc/ioremap mappings
  x86/mm: Pre-allocate P4D/PUD pages for vmalloc area
2020-08-03 17:25:42 -07:00
Linus Torvalds
c813e8c9df Filter MSR writes from user-space by default, and print a syslog entry if
they happen outside the allowed set of MSRs, which is a single one for now,
 MSR_IA32_ENERGY_PERF_BIAS.
 
 The plan is to eventually disable MSR writes by default (they can still be
 enabled via allow_writes=on).
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-misc-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 MSR filtering from Ingo Molnar:
 "Filter MSR writes from user-space by default, and print a syslog entry
  if they happen outside the allowed set of MSRs, which is a single one
  for now, MSR_IA32_ENERGY_PERF_BIAS.

  The plan is to eventually disable MSR writes by default (they can
  still be enabled via allow_writes=on)"

* tag 'x86-misc-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/msr: Filter MSR writes
2020-08-03 17:23:49 -07:00
Linus Torvalds
69094c2032 A single commit that removes the microcode loader's FW_LOADER coupling.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-microcode-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode update from Ingo Molnar:
 "Remove the microcode loader's FW_LOADER coupling"

* tag 'x86-microcode-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode: Do not select FW_LOADER
2020-08-03 17:22:13 -07:00
Linus Torvalds
0a897743ac A single commit that adds the /sys/kernel/debug/selftest_helpers/test_fpu FPU self-test.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-fpu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 FPU selftest from Ingo Molnar:
 "Add the /sys/kernel/debug/selftest_helpers/test_fpu FPU self-test"

* tag 'x86-fpu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  selftests/fpu: Add an FPU selftest
2020-08-03 17:21:10 -07:00
Linus Torvalds
335ad94c21 Misc changes:
- Prepare for Intel's new SERIALIZE instruction
  - Enable split-lock debugging on more CPUs
  - Add more Intel CPU models
  - Optimize stack canary initialization a bit
  - Simplify the Spectre logic a bit
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cpu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu updates from Ingo Molar:

 - prepare for Intel's new SERIALIZE instruction

 - enable split-lock debugging on more CPUs

 - add more Intel CPU models

 - optimize stack canary initialization a bit

 - simplify the Spectre logic a bit

* tag 'x86-cpu-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Refactor sync_core() for readability
  x86/cpu: Relocate sync_core() to sync_core.h
  x86/cpufeatures: Add enumeration for SERIALIZE instruction
  x86/split_lock: Enable the split lock feature on Sapphire Rapids and Alder Lake CPUs
  x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family
  x86/stackprotector: Pre-initialize canary for secondary CPUs
  x86/speculation: Merge one test in spectre_v2_user_select_mitigation()
2020-08-03 17:08:02 -07:00
Linus Torvalds
4ee4810315 Improve x86 debuggability: print registers with the same log level as the backtrace.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 debug fixlets from Ingo Molnar:
 "Improve x86 debuggability: print registers with the same log level as
  the backtrace"

* tag 'x86-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/dumpstack: Show registers dump with trace's log level
  x86/dumpstack: Add log_lvl to __show_regs()
  x86/dumpstack: Add log_lvl to show_iret_regs()
2020-08-03 17:00:00 -07:00
Linus Torvalds
37e88224c0 Misc cleanups all around the place.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cleanups-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Ingo Molnar:
 "Misc cleanups all around the place"

* tag 'x86-cleanups-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/ioperm: Initialize pointer bitmap with NULL rather than 0
  x86: uv: uv_hub.h: Delete duplicated word
  x86: cmpxchg_32.h: Delete duplicated word
  x86: bootparam.h: Delete duplicated word
  x86/mm: Remove the unused mk_kernel_pgd() #define
  x86/tsc: Remove unused "US_SCALE" and "NS_SCALE" leftover macros
  x86/ioapic: Remove unused "IOAPIC_AUTO" define
  x86/mm: Drop unused MAX_PHYSADDR_BITS
  x86/msr: Move the F15h MSRs where they belong
  x86/idt: Make idt_descr static
  initrd: Remove erroneous comment
  x86/mm/32: Fix -Wmissing prototypes warnings for init.c
  cpu/speculation: Add prototype for cpu_show_srbds()
  x86/mm: Fix -Wmissing-prototypes warnings for arch/x86/mm/init.c
  x86/asm: Unify __ASSEMBLY__ blocks
  x86/cpufeatures: Mark two free bits in word 3
  x86/msr: Lift AMD family 0x15 power-specific MSRs
2020-08-03 16:53:28 -07:00
Linus Torvalds
1ff9b20b47 Misc changes: refresh defconfigs and simplify the boot image link stage.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-build-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 build updates from Ingo Molnar:
 "Misc changes: refresh defconfigs and simplify the boot image link
  stage"

* tag 'x86-build-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/defconfigs: Refresh defconfig files
  x86/build: Move max-page-size option to LDFLAGS_vmlinux
  x86/defconfigs: Remove CONFIG_CRYPTO_AES_586 from i386_defconfig
2020-08-03 16:51:34 -07:00
Andy Shevchenko
22cc422070 gpio: wcove: Request IRQ after all initialisation done
There is logically better to request IRQ when we initialise all structures.
Align the driver with the rest on the same matter.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200728125504.27786-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:25:02 +02:00
Andy Shevchenko
a1cdaa64aa gpio: crystalcove: Free IRQ on error path
It appears that all, but request_irq(), calls in the driver are device managed.
In unlikely case of devm_gpiochip_add_data() failure the IRQ left requested.
Free IRQ on error path by switching to devm_request_threaded_irq() API.

Byproduct of this change is a drop of ->remove() callback completely.

Fixes: 945e72db36 ("gpio: crystalcove: Use irqchip template")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200728125504.27786-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:25:02 +02:00
Andy Shevchenko
2a93a0da06 gpio: pca953x: Request IRQ after all initialisation done
There is logically better to request IRQ when we initialise all structures.
Align the driver with the rest on the same matter.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200728125504.27786-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:25:02 +02:00
Ahmad Fatoum
5f402bb175 gpio: don't use same lockdep class for all devm_gpiochip_add_data users
Commit 959bc7b22b ("gpio: Automatically add lockdep keys") documents
in its commits message its intention to "create a unique class key for
each driver".

It does so by having gpiochip_add_data add in-place the definition of
two static lockdep classes for LOCKDEP use. That way, every caller of
the macro adds their gpiochip with unique lockdep classes.

There are many indirect callers of gpiochip_add_data, however, via
use of devm_gpiochip_add_data. devm_gpiochip_add_data has external
linkage and all its users will share the same lockdep classes, which
probably is not intended.

Fix this by replicating the gpio_chip_add_data statics-in-macro for
the devm_ version as well.

Fixes: 959bc7b22b ("gpio: Automatically add lockdep keys")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200731123835.8003-1-a.fatoum@pengutronix.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:22:02 +02:00
Huang Guobin
fbc97de84e tipc: Use is_broadcast_ether_addr() instead of memcmp()
Using is_broadcast_ether_addr() instead of directly use
memcmp() to determine if the ethernet address is broadcast
address.

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Huang Guobin <huangguobin4@huawei.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:21:46 -07:00
David S. Miller
6c09b48437 Merge branch 'DPAA-FMan-driver-fixes'
Florinel Iordache says:

====================
DPAA FMan driver fixes

Here are several fixes for the DPAA FMan driver.

v2 changes:
* corrected patch 4 by removing the line added by mistake
* used longer fixes tags with the first 12 characters of the SHA-1 ID

v3 changes:
* remove the empty line inserted after fixes tag
====================

Acked-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:20:35 -07:00
Florinel Iordache
3207f715c3 fsl/fman: fix eth hash table allocation
Fix memory allocation for ethernet address hash table.
The code was wrongly allocating an array for eth hash table which
is incorrect because this is the main structure for eth hash table
(struct eth_hash_t) that contains inside a number of elements.

Fixes: 57ba4c9b56 ("fsl/fman: Add FMan MAC support")
Signed-off-by: Florinel Iordache <florinel.iordache@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:20:15 -07:00
Florinel Iordache
cc5d229a12 fsl/fman: check dereferencing null pointer
Add a safe check to avoid dereferencing null pointer

Fixes: 57ba4c9b56 ("fsl/fman: Add FMan MAC support")
Signed-off-by: Florinel Iordache <florinel.iordache@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:20:15 -07:00
Florinel Iordache
cc79fd8f55 fsl/fman: fix unreachable code
The parameter 'priority' is incorrectly forced to zero which ultimately
induces logically dead code in the subsequent lines.

Fixes: 57ba4c9b56 ("fsl/fman: Add FMan MAC support")
Signed-off-by: Florinel Iordache <florinel.iordache@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:20:14 -07:00
Florinel Iordache
0572054617 fsl/fman: fix dereference null return value
Check before using returned value to avoid dereferencing null pointer.

Fixes: 18a6c85fcc ("fsl/fman: Add FMan Port Support")
Signed-off-by: Florinel Iordache <florinel.iordache@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:20:14 -07:00
Florinel Iordache
99f47abd9f fsl/fman: use 32-bit unsigned integer
Potentially overflowing expression (ts_freq << 16 and intgr << 16)
declared as type u32 (32-bit unsigned) is evaluated using 32-bit
arithmetic and then used in a context that expects an expression of
type u64 (64-bit unsigned) which ultimately is used as 16-bit
unsigned by typecasting to u16. Fixed by using an unsigned 32-bit
integer since the value is truncated anyway in the end.

Fixes: 414fd46e77 ("fsl/fman: Add FMan support")
Signed-off-by: Florinel Iordache <florinel.iordache@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:20:14 -07:00
Linus Walleij
bb58a47a12 gpio: max732x: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20200726221259.133536-1-linus.walleij@linaro.org
2020-08-04 01:12:43 +02:00
Linus Walleij
beb3fb4165 gpio: stmpe: Move chip registration
Make sure to register the GPIO chip after requesting the
interrupt and setting up the IRQ members of the irqchip.

Fixes: 9745079609 ("gpio: stmpe: Use irqchip template")
Reported-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Patrice Chotard <patrice.chotard@st.com>
Link: https://lore.kernel.org/r/20200728072706.348725-1-linus.walleij@linaro.org
2020-08-04 01:07:23 +02:00
Linus Torvalds
c0dfadfed8 The main change in this cycle was to add support for ZSTD-compressed
kernel and initrd images.
 
 ZSTD has a very fast decompressor, yet it compresses better than gzip.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-boot-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot updates from Ingo Molnar:
 "The main change in this cycle was to add support for ZSTD-compressed
  kernel and initrd images.

  ZSTD has a very fast decompressor, yet it compresses better than gzip"

* tag 'x86-boot-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation: dontdiff: Add zstd compressed files
  .gitignore: Add ZSTD-compressed files
  x86: Add support for ZSTD compressed kernel
  x86: Bump ZO_z_extra_bytes margin for zstd
  usr: Add support for zstd compressed initramfs
  init: Add support for zstd compressed kernel
  lib: Add zstd support to decompress
  lib: Prepare zstd for preboot environment, improve performance
2020-08-03 16:03:23 -07:00
David S. Miller
f2e0b29a9a Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

1) UAF in chain binding support from previous batch, from Dan Carpenter.

2) Queue up delayed work to expire connections with no destination,
   from Andrew Sy Kim.

3) Use fallthrough pseudo-keyword, from Gustavo A. R. Silva.

4) Replace HTTP links with HTTPS, from Alexander A. Klimov.

5) Remove superfluous null header checks in ip6tables, from
   Gaurav Singh.

6) Add extended netlink error reporting for expression.

7) Report EEXIST on overlapping chain, set elements and flowtable
   devices.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:03:18 -07:00
Christophe JAILLET
c23cf402d0 net: spider_net: Remove a useless memset
Avoid a memset after a call to 'dma_alloc_coherent()'.
This is useless since
commit 518a2f1925 ("dma-mapping: zero memory returned from dma_alloc_*")

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:01:11 -07:00
Christophe JAILLET
36f28f7687 net: spider_net: Fix the size used in a 'dma_free_coherent()' call
Update the size used in 'dma_free_coherent()' in order to match the one
used in the corresponding 'dma_alloc_coherent()', in
'spider_net_init_chain()'.

Fixes: d4ed8f8d1f ("Spidernet DMA coalescing")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:01:11 -07:00
Christophe JAILLET
edab74e9cb net: sgi: ioc3-eth: Fix the size used in some 'dma_free_coherent()' calls
Update the size used in 'dma_free_coherent()' in order to match the one
used in the corresponding 'dma_alloc_coherent()'.

Fixes: 369a782af0 ("net: sgi: ioc3-eth: ensure tx ring is 16k aligned.")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 16:00:26 -07:00
Linus Torvalds
ba77c568f3 A couple of changes, concentrated into the percpu code, to enable
Clang support on i386 kernels too.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-asm-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 asm updates from Ingo Molnar:
 "A couple of changes, concentrated into the percpu code, to enable
  Clang support on i386 kernels too"

[ And cleans up the macros to generate percpu ops a lot too  - Linus ]

* tag 'x86-asm-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/uaccess: Make __get_user_size() Clang compliant on 32-bit
  x86/percpu: Remove unused PER_CPU() macro
  x86/percpu: Clean up percpu_stable_op()
  x86/percpu: Clean up percpu_cmpxchg_op()
  x86/percpu: Clean up percpu_xchg_op()
  x86/percpu: Clean up percpu_add_return_op()
  x86/percpu: Remove "e" constraint from XADD
  x86/percpu: Clean up percpu_add_op()
  x86/percpu: Clean up percpu_from_op()
  x86/percpu: Clean up percpu_to_op()
  x86/percpu: Introduce size abstraction macros
2020-08-03 15:58:06 -07:00
Tianjia Zhang
aa027850a2 liquidio: Fix wrong return value in cn23xx_get_pf_num()
On an error exit path, a negative error code should be returned
instead of a positive return value.

Fixes: 0c45d7fe12 ("liquidio: fix use of pf in pass-through mode in a virtual machine")
Cc: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 15:57:31 -07:00
Tianjia Zhang
bace287c55 net/enetc: Fix wrong return value in enetc_psfp_parse_clsflower()
In the case of invalid rule, a positive value EINVAL is returned here.
I think this is a typo error. It is necessary to return an error value.

Cc: Po Liu <Po.Liu@nxp.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 15:57:07 -07:00
Tianjia Zhang
0470a48880 net: ethernet: aquantia: Fix wrong return value
In function hw_atl_a0_hw_multicast_list_set(), when an invalid
request is encountered, a negative error code should be returned.

Fixes: bab6de8fd1 ("net: ethernet: aquantia: Atlantic A0 and B0 specific functions")
Cc: David VomLehn <vomlehn@texas.net>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 15:57:02 -07:00