Commit graph

738424 commits

Author SHA1 Message Date
Rafael J. Wysocki
0c81e26e86 Merge branches 'acpi-x86', 'acpi-apei' and 'acpi-ec'
* acpi-x86:
  ACPI / x86: boot: Propagate error code in acpi_gsi_to_irq()
  ACPI / x86: boot: Don't setup SCI on HW-reduced platforms
  ACPI / x86: boot: Use INVALID_ACPI_IRQ instead of 0 for acpi_sci_override_gsi
  ACPI / x86: boot: Get rid of ACPI_INVALID_GSI
  ACPI / x86: boot: Swap variables in condition in acpi_register_gsi_ioapic()

* acpi-apei:
  ACPI / APEI: remove redundant variables len and node_len
  ACPI: APEI: call into AER handling regardless of severity
  ACPI: APEI: handle PCIe AER errors in separate function

* acpi-ec:
  ACPI: EC: Fix debugfs_create_*() usage
2018-01-18 03:01:55 +01:00
Rafael J. Wysocki
13c35c8388 Merge branches 'acpi-numa', 'acpi-sysfs', 'acpi-pmic', 'acpi-soc' and 'acpi-ged'
* acpi-numa:
  ACPI / NUMA: ia64: Parse all entries of SRAT memory affinity table

* acpi-sysfs:
  ACPI: sysfs: Make ACPI GPE mask kernel parameter cover all GPEs

* acpi-pmic:
  ACPI / PMIC: Convert to use builtin_platform_driver() macro
  ACPI / PMIC: constify platform_device_id

* acpi-soc:
  ACPI / LPSS: Do not instiate platform_dev for devs without MMIO resources
  ACPI / LPSS: Add device link for CHT SD card dependency on I2C

* acpi-ged:
  ACPI: GED: unregister interrupts during shutdown
2018-01-18 03:01:38 +01:00
Rafael J. Wysocki
2a2bafcb3b Merge branch 'acpica'
* acpica: (40 commits)
  ACPICA: Update version to 20171215
  ACPICA: trivial style fix, no functional change
  ACPICA: Fix a couple memory leaks during package object resolution
  ACPICA: Recognize the Windows 10 version 1607 and 1703 OSI strings
  ACPICA: DT compiler: prevent error if optional field at the end of table is not present
  ACPICA: Rename a global variable, no functional change
  ACPICA: Create and deploy safe version of strncpy
  ACPICA: Cleanup the global variables and update comments
  ACPICA: Debugger: fix slight indentation issue
  ACPICA: Fix a regression in the acpi_evaluate_object_type() interface
  ACPICA: Update for a few debug output statements
  ACPICA: Debug output, no functional change
  ACPICA: Update information in MAINTAINERS
  ACPICA: Rename variable to match upstream
  ACPICA: Update version to 20171110
  ACPICA: ACPI 6.2: Additional PPTT flags
  ACPICA: Update linkage for get mutex name interface
  ACPICA: Update mutex error messages, no functional change
  ACPICA: Debugger: add "background" command for method execution
  ACPICA: Small typo fix, no functional change
  ...
2018-01-18 03:01:07 +01:00
Rafael J. Wysocki
ee43730d65 Merge branches 'pm-opp', 'pm-devfreq', 'pm-avs' and 'pm-tools'
* pm-opp:
  OPP: Introduce "required-opp" property
  OPP: Allow OPP table to be used for power-domains

* pm-devfreq:
  PM / devfreq: Fix potential NULL pointer dereference in governor_store
  PM / devfreq: Propagate error from devfreq_add_device()

* pm-avs:
  PM / AVS: rockchip-io: account for const type of of_device_id.data

* pm-tools:
  tools/power/x86/intel_pstate_tracer: Free the trace buffer memory
  cpupower: Remove FSF address
2018-01-18 02:56:04 +01:00
Rafael J. Wysocki
bcaea4678f Merge branches 'acpi-pm' and 'pm-sleep'
* acpi-pm:
  platform/x86: surfacepro3: Support for wakeup from suspend-to-idle
  ACPI / PM: Use Low Power S0 Idle on more systems
  ACPI / PM: Make it possible to ignore the system sleep blacklist

* pm-sleep:
  PM / hibernate: Drop unused parameter of enough_swap
  block, scsi: Fix race between SPI domain validation and system suspend
  PM / sleep: Make lock/unlock_system_sleep() available to kernel modules
  PM: hibernate: Do not subtract NR_FILE_MAPPED in minimum_image_size()
2018-01-18 02:55:28 +01:00
Rafael J. Wysocki
4b67157f04 Merge branch 'pm-core'
* pm-core: (29 commits)
  dmaengine: rcar-dmac: Make DMAC reinit during system resume explicit
  PM / runtime: Allow no callbacks in pm_runtime_force_suspend|resume()
  PM / runtime: Check ignore_children in pm_runtime_need_not_resume()
  PM / runtime: Rework pm_runtime_force_suspend/resume()
  PM / wakeup: Print warn if device gets enabled as wakeup source during sleep
  PM / core: Propagate wakeup_path status flag in __device_suspend_late()
  PM / core: Re-structure code for clearing the direct_complete flag
  PM: i2c-designware-platdrv: Optimize power management
  PM: i2c-designware-platdrv: Use DPM_FLAG_SMART_PREPARE
  PM / mfd: intel-lpss: Use DPM_FLAG_SMART_SUSPEND
  PCI / PM: Use SMART_SUSPEND and LEAVE_SUSPENDED flags for PCIe ports
  PM / wakeup: Add device_set_wakeup_path() helper to control wakeup path
  PM / core: Assign the wakeup_path status flag in __device_prepare()
  PM / wakeup: Do not fail dev_pm_attach_wake_irq() unnecessarily
  PM / core: Direct DPM_FLAG_LEAVE_SUSPENDED handling
  PM / core: Direct DPM_FLAG_SMART_SUSPEND optimization
  PM / core: Add helpers for subsystem callback selection
  PM / wakeup: Drop redundant check from device_init_wakeup()
  PM / wakeup: Drop redundant check from device_set_wakeup_enable()
  PM / wakeup: only recommend "call"ing device_init_wakeup() once
  ...
2018-01-18 02:55:09 +01:00
Rafael J. Wysocki
f9b736f64a Merge branches 'pm-domains', 'pm-kconfig', 'pm-cpuidle' and 'powercap'
* pm-domains:
  PM / genpd: Stop/start devices without pm_runtime_force_suspend/resume()
  PM / domains: Don't skip driver's ->suspend|resume_noirq() callbacks
  PM / Domains: Remove obsolete "samsung,power-domain" check

* pm-kconfig:
  bus: simple-pm-bus: convert bool SIMPLE_PM_BUS to tristate
  PM: Provide a config snippet for disabling PM

* pm-cpuidle:
  cpuidle: Avoid NULL argument in cpuidle_switch_governor()

* powercap:
  powercap: intel_rapl: Fix trailing semicolon
  powercap: add suspend and resume mechanism for SOC power limit
  powercap: Simplify powercap_init()
2018-01-18 02:54:45 +01:00
Rafael J. Wysocki
f31c376025 Merge branch 'pm-cpufreq'
* pm-cpufreq: (36 commits)
  cpufreq: scpi: remove arm_big_little dependency
  drivers: psci: remove cluster terminology and dependency on physical_package_id
  cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
  cpufreq: intel_pstate: Add Skylake servers support
  cpufreq: intel_pstate: Replace bxt_funcs with core_funcs
  cpufreq: imx6q: add 696MHz operating point for i.mx6ul
  ARM: dts: imx6ul: add 696MHz operating point
  cpufreq: stats: Change return type of cpufreq_stats_update() as void
  powernv-cpufreq: Treat pstates as opaque 8-bit values
  powernv-cpufreq: Fix pstate_to_idx() to handle non-continguous pstates
  powernv-cpufreq: Add helper to extract pstate from PMSR
  cpu_cooling: Remove static-power related documentation
  cpufreq: imx6q: switch to Use clk_bulk_get() to refine clk operations
  PM / OPP: Make local function ti_opp_supply_set_opp() static
  PM / OPP: Add ti-opp-supply driver
  dt-bindings: opp: Introduce ti-opp-supply bindings
  cpufreq: ti-cpufreq: Add support for multiple regulators
  cpufreq: ti-cpufreq: Convert to module_platform_driver
  cpufreq: Add DVFS support for Armada 37xx
  MAINTAINERS: add new entries for Armada 37xx cpufreq driver
  ...
2018-01-18 02:52:56 +01:00
Rafael J. Wysocki
f06970f4b0 Merge branch 'pm-cpufreq-thermal' into pm-cpufreq
* pm-cpufreq-thermal:
  cpu_cooling: Remove static-power related documentation
  cpu_cooling: Drop static-power related stuff
  cpu_cooling: Keep only one of_cpufreq*cooling_register() helper
  cpu_cooling: Remove unused cpufreq_power_cooling_register()
  cpu_cooling: Make of_cpufreq_power_cooling_register() parse DT
2018-01-18 02:52:42 +01:00
Luis de Bethencourt
bee344cb70 PCI / PM: Remove spurious semicolon
The trailing semicolon is an empty statement that does no operation.
Removing it since it doesn't do anything.

Signed-off-by: Luis de Bethencourt <luisbg@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-01-18 02:50:03 +01:00
Paul Mackerras
00608e1f00 KVM: PPC: Book3S HV: Allow HPT and radix on the same core for POWER9 v2.2
POWER9 chip versions starting with "Nimbus" v2.2 can support running
with some threads of a core in HPT mode and others in radix mode.
This means that we don't have to prohibit independent-threads mode
when running a HPT guest on a radix host, and we don't have to do any
of the synchronization between threads that was introduced in commit
c01015091a ("KVM: PPC: Book3S HV: Run HPT guests on POWER9 radix
hosts", 2017-10-19).

Rather than using up another CPU feature bit, we just do an
explicit test on the PVR (processor version register) at module
startup time to determine whether we have to take steps to avoid
having some threads in HPT mode and some in radix mode (so-called
"mixed mode").  We test for "Nimbus" (indicated by 0 or 1 in the top
nibble of the lower 16 bits) v2.2 or later, or "Cumulus" (indicated by
2 or 3 in that nibble) v1.1 or later.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2018-01-18 12:05:19 +11:00
Yonghong Song
eefa864a81 bpf: change fake_ip for bpf_trace_printk helper
Currently, for bpf_trace_printk helper, fake ip address 0x1
is used with comments saying that fake ip will not be printed.
This is indeed true for 4.12 and earlier version, but for
4.13 and later version, the ip address will be printed if
it cannot be resolved with kallsym. Running samples/bpf/tracex5
program and you will have the following in the debugfs
trace_pipe output:
  ...
  <...>-1819  [003] ....   443.497877: 0x00000001: mmap
  <...>-1819  [003] ....   443.498289: 0x00000001: syscall=102 (one of get/set uid/pid/gid)
  ...

The kernel commit changed this behavior is:
  commit feaf1283d1
  Author: Steven Rostedt (VMware) <rostedt@goodmis.org>
  Date:   Thu Jun 22 17:04:55 2017 -0400

      tracing: Show address when function names are not found
  ...

This patch changed the comment and also altered the fake ip
address to 0x0 as users may think 0x1 has some special meaning
while it doesn't. The new output:
  ...
  <...>-1799  [002] ....    25.953576: 0: mmap
  <...>-1799  [002] ....    25.953865: 0: read(fd=0, buf=00000000053936b5, size=512)
  ...

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-18 01:51:42 +01:00
Jesper Dangaard Brouer
e2e3224122 samples/bpf: xdp2skb_meta comment explain why pkt-data pointers are invalidated
Improve the 'unknown reason' comment, with an actual explaination of why
the ctx pkt-data pointers need to be loaded after the helper function
bpf_xdp_adjust_meta().  Based on the explaination Daniel gave.

Fixes: 36e04a2d78 ("samples/bpf: xdp2skb_meta shows transferring info from XDP to SKB")
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-18 01:49:09 +01:00
Xiongfeng Wang
321cb0308a Kbuild: suppress packed-not-aligned warning for default setting only
gcc-8 reports many -Wpacked-not-aligned warnings. The below are some
examples.

./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct
ceph_entity_addr' is less than 8 [-Wpacked-not-aligned]
 } __attribute__ ((packed));

./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct
ceph_entity_addr' is less than 8 [-Wpacked-not-aligned]
 } __attribute__ ((packed));

./include/linux/ceph/msgr.h:67:1: warning: alignment 1 of 'struct
ceph_entity_addr' is less than 8 [-Wpacked-not-aligned]
 } __attribute__ ((packed));

This patch suppresses this kind of warnings for default setting.

Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-18 09:37:53 +09:00
Masahiro Yamada
ab9ce9feed fixdep: use existing helper to check modular CONFIG options
str_ends_with() tests if the given token ends with a particular string.
Currently, it is used to check file paths without $(srctree).

Actually, we have one more place where this helper is useful.  Use it
to check if CONFIG option ends with _MODULE.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-18 09:37:39 +09:00
Masahiro Yamada
87b95a8135 fixdep: refactor parse_dep_file()
parse_dep_file() has too much indentation, and puts the code far to
the right.  This commit refactors the code and reduces the one level
of indentation.

strrcmp() computes 'slen' by itself, but the caller already knows the
length of the token, so 'slen' can be passed via function argument.
With this, we can swap the order of strrcmp() and "*p = \0;"

Also, strrcmp() is an ambiguous function name.  Flip the logic and
rename it to str_ends_with().

I added a new helper is_ignored_file() - this returns 1 if the token
represents a file that should be ignored.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-18 09:37:39 +09:00
Masahiro Yamada
5d1ef76f5a fixdep: move global variables to local variables of main()
I do not mind global variables where they are useful enough.  In this
case, I do not see a good reason to use global variables since they
are just referenced in shallow places.  It is easy to pass them via
function arguments.

I squashed print_cmdline() into main() since it is just one line code.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-18 09:37:38 +09:00
Masahiro Yamada
ccfe78873c fixdep: remove unneeded memcpy() in parse_dep_file()
Each token in the depfile is copied to the temporary buffer 's' to
terminate the token with zero.  We do not need to do this any more
because the parsed buffer is now writable.  Insert '\0' directly in
the buffer without calling memcpy().

<limits.h> is no longer necessary. (It was needed for PATH_MAX).

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-18 09:37:38 +09:00
Masahiro Yamada
4003fd80cb fixdep: factor out common code for reading files
Now, do_config_files() and print_deps() are almost the same.  Only
the difference is the parser function called (parse_config_file vs
parse_dep_file).

We can reduce the code duplication by factoring out the common code
into read_file() - this function allocates a buffer and loads a file
to it.  It returns the pointer to the allocated buffer.  (As before,
it bails out by exit(2) for any error.)  The caller must free the
buffer when done.

Having empty source files is possible; fixdep should simply skip them.
I deleted the "st.st_size == 0" check, so read_file() allocates 1-byte
buffer for an empty file.  strstr() will immediately return NULL, and
this is what we expect.

On the other hand, an empty dep_file should be treated as an error.
In this case, parse_dep_file() will error out with "no targets found"
and it is a correct error message.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-18 09:37:38 +09:00
Masahiro Yamada
01b5cbe701 fixdep: use malloc() and read() to load dep_file to buffer
Commit dee81e9886 ("fixdep: faster CONFIG_ search") changed how to
read files in which CONFIG options are searched.  It used malloc()
and read() instead of mmap() because it needed to zero-terminate the
buffer in order to use strstr().  print_deps() was left untouched
since there was no reason to change it.

Now, I have two motivations to change it in the same way.

 - do_config_file() and print_deps() do quite similar things; they
   open a file, load it onto memory, and pass it to a parser function.
   If we use malloc() and read() for print_deps() too, we can factor
   out the common code.  (I will do this in the next commit.)

 - parse_dep_file() copies each token to a temporary buffer because
   it needs to zero-terminate it to be passed to printf().  It is not
   possible to modify the buffer directly because it is mmap'ed with
   O_RDONLY.  If we load the file content into a malloc'ed buffer, we
   can insert '\0' after each token, and save memcpy().  (I will do
   this in the commit after next.)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-18 09:37:37 +09:00
Masahiro Yamada
41f92cffba fixdep: remove unnecessary <arpa/inet.h> inclusion
<arpa/inet.h> was included for ntohl(), but it was removed by
commit dee81e9886 ("fixdep: faster CONFIG_ search").

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-18 09:37:37 +09:00
Daniel Borkmann
cda18e9726 Merge branch 'bpf-dump-and-disasm-nfp-jit'
Jakub Kicinski says:

====================
Jiong says:

Currently bpftool could disassemble host jited image, for example x86_64,
using libbfd. However it couldn't disassemble offload jited image.

There are two reasons:

  1. bpf_obj_get_info_by_fd/struct bpf_prog_info couldn't get the address
     of jited image and image's length.

  2. Even after issue 1 resolved, bpftool couldn't figure out what is the
     offload arch from bpf_prog_info, therefore can't drive libbfd
     disassembler correctly.

  This patch set resolve issue 1 by introducing two new fields "jited_len"
and "jited_image" in bpf_dev_offload. These two fields serve as the generic
interface to communicate the jited image address and length for all offload
targets to higher level caller. For example, bpf_obj_get_info_by_fd could
use them to fill the userspace visible fields jited_prog_len and
jited_prog_insns.

  This patch set resolve issue 2 by getting bfd backend name through
"ifindex", i.e network interface index.

v1:
 - Deduct bfd arch name through ifindex, i.e network interface index.
   First, map ifindex to devname through ifindex_to_name_ns, then get
   pci id through /sys/class/dev/DEVNAME/device/vendor. (Daniel, Alexei)
====================

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-18 01:26:16 +01:00
Jiong Wang
e65935969d tools: bpftool: improve architecture detection by using ifindex
The current architecture detection method in bpftool is designed for host
case.

For offload case, we can't use the architecture of "bpftool" itself.
Instead, we could call the existing "ifindex_to_name_ns" to get DEVNAME,
then read pci id from /sys/class/dev/DEVNAME/device/vendor, finally we map
vendor id to bfd arch name which will finally be used to select bfd backend
for the disassembler.

Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-18 01:26:15 +01:00
Jiong Wang
eb1d7db927 nfp: bpf: set new jit info fields
This patch set those new jit info fields introduced in this patch set.

Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-18 01:26:15 +01:00
Jiong Wang
fcfb126def bpf: add new jited info fields in bpf_dev_offload and bpf_prog_info
For host JIT, there are "jited_len"/"bpf_func" fields in struct bpf_prog
used by all host JIT targets to get jited image and it's length. While for
offload, targets are likely to have different offload mechanisms that these
info are kept in device private data fields.

Therefore, BPF_OBJ_GET_INFO_BY_FD syscall needs an unified way to get JIT
length and contents info for offload targets.

One way is to introduce new callback to parse device private data then fill
those fields in bpf_prog_info. This might be a little heavy, the other way
is to add generic fields which will be initialized by all offload targets.

This patch follow the second approach to introduce two new fields in
struct bpf_dev_offload and teach bpf_prog_get_info_by_fd about them to fill
correct jited_prog_len and jited_prog_insns in bpf_prog_info.

Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-18 01:26:15 +01:00
Daniel Borkmann
6f16101e6a bpf: mark dst unknown on inconsistent {s, u}bounds adjustments
syzkaller generated a BPF proglet and triggered a warning with
the following:

  0: (b7) r0 = 0
  1: (d5) if r0 s<= 0x0 goto pc+0
   R0=inv0 R1=ctx(id=0,off=0,imm=0) R10=fp0
  2: (1f) r0 -= r1
   R0=inv0 R1=ctx(id=0,off=0,imm=0) R10=fp0
  verifier internal error: known but bad sbounds

What happens is that in the first insn, r0's min/max value
are both 0 due to the immediate assignment, later in the jsle
test the bounds are updated for the min value in the false
path, meaning, they yield smin_val = 1, smax_val = 0, and when
ctx pointer is subtracted from r0, verifier bails out with the
internal error and throwing a WARN since smin_val != smax_val
for the known constant.

For min_val > max_val scenario it means that reg_set_min_max()
and reg_set_min_max_inv() (which both refine existing bounds)
demonstrated that such branch cannot be taken at runtime.

In above scenario for the case where it will be taken, the
existing [0, 0] bounds are kept intact. Meaning, the rejection
is not due to a verifier internal error, and therefore the
WARN() is not necessary either.

We could just reject such cases in adjust_{ptr,scalar}_min_max_vals()
when either known scalars have smin_val != smax_val or
umin_val != umax_val or any scalar reg with bounds
smin_val > smax_val or umin_val > umax_val. However, there
may be a small risk of breakage of buggy programs, so handle
this more gracefully and in adjust_{ptr,scalar}_min_max_vals()
just taint the dst reg as unknown scalar when we see ops with
such kind of src reg.

Reported-by: syzbot+6d362cadd45dc0a12ba4@syzkaller.appspotmail.com
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-17 16:23:17 -08:00
Christoph Hellwig
4167b2ad51 PCI: Remove NULL device handling from PCI DMA API
Historically some ISA drivers used the old PCI DMA API with a NULL pdev
argument, but these days this isn't used and not too useful due to the
per-device DMA ops, so remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-01-17 18:05:51 -06:00
Christoph Hellwig
c08fa1608d net: tsi108: Use DMA API properly
We need to pass a struct device to the DMA API, even if some architectures
still support that for legacy reasons, and should not mix it with the old
PCI DMA API.

Note that the driver also seems to never actually unmap its DMA mappings,
but to fix that we'll need someone more familar with the driver.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-01-17 18:04:43 -06:00
Christoph Hellwig
8d669f93b4 media: ttusb-dec: Remove pci_zalloc_coherent() abuse
Switch to a plain kzalloc() instead of pci_zalloc_coherent() to allocate
memory for the USB DMA.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-01-17 18:02:46 -06:00
Christoph Hellwig
894f3009d6 media: ttusb-budget: Remove pci_zalloc_coherent() abuse
Switch to a plain kzalloc() instead of pci_zalloc_coherent() to allocate
memory for the USB DMA.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-01-17 18:01:35 -06:00
Rob Herring
59f47eff03 powerpc/pci: Use of_irq_parse_and_map_pci() helper
Instead of calling both of_irq_parse_pci() and irq_create_of_mapping(),
call of_irq_parse_and_map_pci(), which does the same thing. This will allow
making of_irq_parse_pci() a private, static function.

This changes the logic slightly in that the fallback path will also be
taken if irq_create_of_mapping() fails internally.

Signed-off-by: Rob Herring <robh@kernel.org>
[bhelgaas: fold in virq init from Stephen Rothwell <sfr@canb.auug.org.au>]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
2018-01-17 17:54:37 -06:00
Masanari Iida
ae17a87dd7 linux-next: docs-rst: Fix typos in kfigure.py
This patch fixes some spelling typos found in kfigure.py

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-17 16:49:05 -07:00
Masanari Iida
5d87a33782 linux-next: DOC: HWPOISON: Fix path to debugfs in hwpoison.txt
This patch fixes an incorrect path for debugfs in hwpoison.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-17 16:48:29 -07:00
Matthew Wilcox
423860a65a Documentation: Fix misconversion of #if
At some stage of the conversion pipeline, something thought that the
DocBook entity &num; should be rendered as NUM instead of #.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-17 16:45:01 -07:00
Rob Herring
4670d610d5 PCI: Move OF-related PCI functions into PCI core
Following what has been done for other subsystems, move the remaining PCI
related code out of drivers/of/ and into drivers/pci/of.c

With this, we can kill a few kconfig symbols.

Signed-off-by: Rob Herring <robh@kernel.org>
[bhelgaas: minor whitespace, comment cleanups]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Frank Rowand <frowand.list@gmail.com>
2018-01-17 17:36:39 -06:00
Wolfram Sang
5bacb56b2b i2c: rk3x: add proper kerneldoc header
gcc noticed the kerneldoc was wrongly formatted. Fix it!

drivers/i2c/busses/i2c-rk3x.c:164: warning:
  Cannot understand  * @grf_offset: ...
  on line 164 - I thought it was a doc line

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
2018-01-18 00:34:09 +01:00
Dave Airlie
4a6cc7a44e Linux 4.15-rc8
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BackMerge tag 'v4.15-rc8' into drm-next

Linux 4.15-rc8

Daniel requested this for so the intel CI won't fall over on drm-next
so often.
2018-01-18 09:32:15 +10:00
Sascha Hauer
01f196945a ubi: Fix copy/paste error in function documentation
The function documentation of leb_write_trylock is copied from
leb_write_lock. Replace the function name with the correct one.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
2018-01-18 00:18:51 +01:00
Sascha Hauer
889027bca2 ubi: Fastmap: Fix typo
Fix misspelling of 'available' in function name.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
2018-01-18 00:18:50 +01:00
Rock Lee
b3e7383937 ubifs: remove error message in ubifs_xattr_get
There is a situation that other modules, like overlayfs, try to get
xattr value with a small buffer, if they get -ERANGE, they will try
again with the proper buffer size. No need to report an error.

Signed-off-by: Rock Lee <rli@sierrawireless.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2018-01-18 00:18:49 +01:00
Julia Lawall
d032a2eb2e i2c: rk3x: account for const type of of_device_id.data
This driver creates a number of const structures that it stores in
the data field of an of_device_id array.

The data field of an of_device_id structure has type const void *, so
there is no need for a const-discarding cast when putting const values
into such a structure.

Furthermore, adding const to the declaration of the location that
receives a const value from such a field ensures that the compiler
will continue to check that the value is not modified.  The
const-discarding cast on the extraction from the data field is thus
no longer needed.

Done using Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-01-18 00:10:30 +01:00
Wolfram Sang
f89813ec8b i2c: acorn: remove outdated path from file header
That path has gone away for a long time. Move the HW name upwards for a
proper header.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-01-18 00:08:20 +01:00
Arnd Bergmann
e199c285b6 i2c: acorn: add MODULE_LICENSE tag
As of v4.15, Kbuild warns about missing MODULE_LICENSE tags:

WARNING: modpost: missing MODULE_LICENSE() in drivers/i2c/busses/i2c-acorn.o

This adds a license, author and description tag, matching the
comment at the start of the acorn i2c driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-01-18 00:05:58 +01:00
Luis de Bethencourt
ccffe77670 hwmon: (lm75) Fix trailing semicolon
The trailing semicolon is an empty statement that does no operation.
Removing it since it doesn't do anything.

Signed-off-by: Luis de Bethencourt <luisbg@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-01-17 14:51:12 -08:00
Daniel Borkmann
ad9294dbc2 bpf: fix cls_bpf on filter replace
Running the following sequence is currently broken:

  # tc qdisc add dev foo clsact
  # tc filter replace dev foo ingress prio 1 handle 1 bpf da obj bar.o
  # tc filter replace dev foo ingress prio 1 handle 1 bpf da obj bar.o
  RTNETLINK answers: Invalid argument

The normal expectation on kernel side is that the second command
succeeds replacing the existing program. However, what happens is
in cls_bpf_change(), we bail out with err in the second run in
cls_bpf_offload(). The EINVAL comes directly in cls_bpf_offload()
when comparing prog vs oldprog's gen_flags. In case of above
replace the new prog's gen_flags are 0, but the old ones are 8,
which means TCA_CLS_FLAGS_NOT_IN_HW is set (e.g. drivers not having
cls_bpf offload).

Fix 102740bd94 ("cls_bpf: fix offload assumptions after callback
conversion") in the following way: gen_flags from user space passed
down via netlink cannot include status flags like TCA_CLS_FLAGS_IN_HW
or TCA_CLS_FLAGS_NOT_IN_HW as opposed to oldprog that we previously
loaded. Therefore, it doesn't make any sense to include them in the
gen_flags comparison with the new prog before we even attempt to
offload. Thus, lets fix this before 4.15 goes out.

Fixes: 102740bd94 ("cls_bpf: fix offload assumptions after callback conversion")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 17:14:06 -05:00
Rex Chang
5a71784317 Net: ethernet: ti: netcp: Fix inbound ping crash if MTU size is greater than 1500
In the receive queue for 4096 bytes fragments, the page address
set in the SW data0 field of the descriptor is not the one we got
when doing the reassembly in receive. The page structure was retrieved
from the wrong descriptor into SW data0 which is then causing a
page fault when UDP checksum is accessing data above 1500.

Signed-off-by: Rex Chang <rchang@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 16:19:37 -05:00
Sabrina Dubroca
6db959c82e tls: reset crypto_info when do_tls_setsockopt_tx fails
The current code copies directly from userspace to ctx->crypto_send, but
doesn't always reinitialize it to 0 on failure. This causes any
subsequent attempt to use this setsockopt to fail because of the
TLS_CRYPTO_INFO_READY check, eventhough crypto_info is not actually
ready.

This should result in a correctly set up socket after the 3rd call, but
currently it does not:

    size_t s = sizeof(struct tls12_crypto_info_aes_gcm_128);
    struct tls12_crypto_info_aes_gcm_128 crypto_good = {
        .info.version = TLS_1_2_VERSION,
        .info.cipher_type = TLS_CIPHER_AES_GCM_128,
    };

    struct tls12_crypto_info_aes_gcm_128 crypto_bad_type = crypto_good;
    crypto_bad_type.info.cipher_type = 42;

    setsockopt(sock, SOL_TLS, TLS_TX, &crypto_bad_type, s);
    setsockopt(sock, SOL_TLS, TLS_TX, &crypto_good, s - 1);
    setsockopt(sock, SOL_TLS, TLS_TX, &crypto_good, s);

Fixes: 3c4d755915 ("tls: kernel TLS support")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 16:16:04 -05:00
Sabrina Dubroca
877d17c79b tls: return -EBUSY if crypto_info is already set
do_tls_setsockopt_tx returns 0 without doing anything when crypto_info
is already set. Silent failure is confusing for users.

Fixes: 3c4d755915 ("tls: kernel TLS support")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 16:16:03 -05:00
Sabrina Dubroca
cf6d43ef66 tls: fix sw_ctx leak
During setsockopt(SOL_TCP, TLS_TX), if initialization of the software
context fails in tls_set_sw_offload(), we leak sw_ctx. We also don't
reassign ctx->priv_ctx to NULL, so we can't even do another attempt to
set it up on the same socket, as it will fail with -EEXIST.

Fixes: 3c4d755915 ('tls: kernel TLS support')
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 16:16:03 -05:00
David S. Miller
6ab6dd9e7f linux-can-fixes-for-4.15-20180116
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Merge tag 'linux-can-fixes-for-4.15-20180116' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2018-01-16

this is a pull reqeust of a single patch for net/master:

This patch by Stephane Grosjean fixes a potential bug in the packet
fragmentation in the peak USB driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 16:09:22 -05:00