Commit Graph

858756 Commits

Author SHA1 Message Date
Daniel Vetter
8db420ac6c drm/todo: Improve drm_gem_object funcs todo
We're kinda going in the wrong direction. Spotted while typing better
gem/prime docs.

Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614203615.12639-2-daniel.vetter@ffwll.ch
2019-06-17 17:36:09 +02:00
Chaitanya Kulkarni
f9bc64a0f0 block: use req_op() to maintain consistency
This is a pure code cleanup patch and doesn't change any functionality.
In block layer to identify the request operation req_op() macro is
used, so change the open coding the req_op() in the blk-mq-debugfs.c.

Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-06-17 09:34:18 -06:00
Christoph Hellwig
4569180495 block: fix page leak when merging to same page
When multiple iovecs reference the same page, each get_user_page call
will add a reference to the page.  But once we've created the bio that
information gets lost and only a single reference will be dropped after
I/O completion.  Use the same_page information returned from
__bio_try_merge_page to drop additional references to pages that were
already present in the bio.

Based on a patch from Ming Lei.

Link: https://lkml.org/lkml/2019/4/23/64
Fixes: 576ed913 ("block: use bio_add_page in bio_iov_iter_get_pages")
Reported-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-06-17 09:33:04 -06:00
Christoph Hellwig
ff896738be block: return from __bio_try_merge_page if merging occured in the same page
We currently have an input same_page parameter to __bio_try_merge_page
to prohibit merging in the same page.  The rationale for that is that
some callers need to account for every page added to a bio.  Instead of
letting these callers call twice into the merge code to account for the
new vs existing page cases, just turn the paramter into an output one that
returns if a merge in the same page occured and let them act accordingly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-06-17 09:33:02 -06:00
Geert Uytterhoeven
501e94b52a ASoC: Add missing newline at end of file
"git diff" says:

    \ No newline at end of file

after modifying the files.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 16:18:13 +01:00
Janusz Krzysztofik
3e802e90ff ASoC: ti: Fix SDMA users not providing channel names
McBSP used to work correctly as long as compat DMA probing, removed by
commit 642aafea88 ("ASoC: ti: remove compat dma probing"), was
available.  New method of DMA probing apparently requires users to
provide channel names when registering with SDMA, while McBSP passes
NULLs.  Fix it.

The same probably applies to McASP (not tested), hence the patch fixes
both.

Fixes: 642aafea88 ("ASoC: ti: remove compat dma probing")
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 16:16:32 +01:00
Fernando Fernandez Mancera
d7f9b2f18e netfilter: synproxy: extract SYNPROXY infrastructure from {ipt, ip6t}_SYNPROXY
Add common functions into nf_synproxy_core.c to prepare for nftables support.
The prototypes of the functions used by {ipt, ip6t}_SYNPROXY are in the new
file nf_synproxy.h

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 17:12:55 +02:00
Fletcher Woodruff
241800642e ASoC: rt5677: move jack-detect init to i2c probe
This patch moves the code to select the gpios for jack detection
from rt5677_probe to rt5677_init_irq (called from rt5677_i2c_probe).

It also sets some registers to fix bugs related to jack detection, and
adds some constants and comments to make it easier to understand what
certain register settings are controlling.

Signed-off-by: Ben Zhang <benzh@chromium.org>
Signed-off-by: Fletcher Woodruff <fletcherw@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 16:12:45 +01:00
Fletcher Woodruff
8893cba2fa ASoC: rt5677: fall back to DT prop names on error
The rt5677 driver uses ACPI-style property names to read from the
device API. However, these do not match the property names in _DSD
used on the Chromebook Pixel 2015, which are closer to the Device Tree
style.  Unify the two functions for reading from the device API so that
they try ACPI-style names first and fall back to the DT names on error.

With this patch, plugging and unplugging the headphone jack switches
between headphones and speakers automatically.

Signed-off-by: Fletcher Woodruff <fletcherw@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 16:12:23 +01:00
Fernando Fernandez Mancera
3006a5224f netfilter: synproxy: remove module dependency on IPv6 SYNPROXY
This is a prerequisite for the infrastructure module NETFILTER_SYNPROXY.
The new module is needed to avoid duplicated code for the SYNPROXY
nftables support.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 17:12:09 +02:00
Fernando Fernandez Mancera
5fcc88ecf6 netfilter: synproxy: add common uapi for SYNPROXY infrastructure
This new UAPI file is going to be used by the xt and nft common SYNPROXY
infrastructure. It is needed to avoid duplicated code.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 17:10:38 +02:00
Kishon Vijay Abraham I
1b89dc93b8 arm64: dts: ti: am654-base-board: Disable SERDES and PCIe
AM654 base board does not have any PCIe slots. Disable all the
SERDES and PCIe instances.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:44 +03:00
Kishon Vijay Abraham I
30eb8ea46c arm64: dts: k3-am6: Add PCIe Endpoint DT node
Add PCIe Endpoint DT node.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:44 +03:00
Kishon Vijay Abraham I
cfa6437a71 arm64: dts: k3-am6: Add PCIe Root Complex DT node
Add PCIe Root Complex DT node.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:43 +03:00
Kishon Vijay Abraham I
cedc255cc6 arm64: dts: k3-am6: Add SERDES DT node
Add DT node for SERDES0 and SERDES1.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:43 +03:00
Kishon Vijay Abraham I
1cbe04b0b7 arm64: dts: k3-am6: Add mux-controller DT node required for muxing SERDES
Add mux-controller DT node as a child node of scm_conf. This is
required for muxing SERDES between USB, PCIe and ICSS2 SGMII.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:43 +03:00
Kishon Vijay Abraham I
4b4ffc6e1f arm64: dts: k3-am6: Add "socionext,synquacer-pre-its" property to gic_its
GIC_ITS used in AM654 platform has the same configuration as that of
GIC_ITS used in Socionext SoCs. Add "socionext,synquacer-pre-its"
property to get PCI MSI working.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:43 +03:00
Roger Quadros
cc2d13e750 arm64: dts: ti: k3-am65: Add MSMC RAM ranges in interconnect node
Add the MSCM RAM address space to the ranges property of the cbass_main
interconnect node so that the addresses can be translated properly.

This fixes the probe failure in the sram driver for the MSMC RAM node.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:50:24 +03:00
Jeffrey Hugo
ba576a6232 regulator: qcom_spmi: Refactor get_mode/set_mode
spmi_regulator_common_get_mode and spmi_regulator_common_set_mode use
multi-level ifs which mirror a switch statement.  Refactor to use a switch
statement to make the code flow more clear.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 15:50:11 +01:00
Jorge Ramirez-Ortiz
86f4ff7a0c regulator: qcom_spmi: enable linear range info
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 15:49:48 +01:00
Arnd Bergmann
9de7eaddfa ASoC: SOF: disallow building without CONFIG_PCI again
Compile-testing without PCI just causes warnings:

sound/soc/sof/sof-pci-dev.c:330:13: error: 'sof_pci_remove' defined but not used [-Werror=unused-function]
 static void sof_pci_remove(struct pci_dev *pci)
             ^~~~~~~~~~~~~~
sound/soc/sof/sof-pci-dev.c:230:12: error: 'sof_pci_probe' defined but not used [-Werror=unused-function]
 static int sof_pci_probe(struct pci_dev *pci,
            ^~~~~~~~~~~~~

I tried to fix this in a way that would still allow compile
tests, but it got too ugly, so this just reverts the patch
that allowed it in the first place.

Most architectures do allow enabling PCI, so the value of the
COMPILE_TEST alternative was not very high to start with.

Fixes: e13ef82a9a ("ASoC: SOF: add COMPILE_TEST for PCI options")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 15:48:48 +01:00
Pablo Neira Ayuso
667ec21ebf Merge branch 'master' of git://blackhole.kfki.hu/nf-next
Jozsef Kadlecsik says:

====================
ipset patches for nf-next

- Remove useless memset() calls, nla_parse_nested/nla_parse
  erase the tb array properly, from Florent Fourcot.
- Merge the uadd and udel functions, the code is nicer
  this way, also from Florent Fourcot.
- Add a missing check for the return value of a
  nla_parse[_deprecated] call, from Aditya Pakki.
- Add the last missing check for the return value
  of nla_parse[_deprecated] call.
- Fix error path and release the references properly
  in set_target_v3_checkentry().
- Fix memory accounting which is reported to userspace
  for hash types on resize, from Stefano Brivio.
- Update my email address to kadlec@netfilter.org.
  The patch covers all places in the source tree where
  my kadlec@blackhole.kfki.hu address could be found.
====================

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 16:37:24 +02:00
Filipe Manana
3763771cf6 Btrfs: fix failure to persist compression property xattr deletion on fsync
After the recent series of cleanups in the properties and xattrs modules
that landed in the 5.2 merge window, we ended up with a regression where
after deleting the compression xattr property through the setflags ioctl,
we don't set the BTRFS_INODE_COPY_EVERYTHING flag in the inode anymore.
As a consequence, if the inode was fsync'ed when it had the compression
property set, after deleting the compression property through the setflags
ioctl and fsync'ing again the inode, the log will still contain the
compression xattr, because the inode did not had that bit set, which
made the fsync not delete all xattrs from the log and copy all xattrs
from the subvolume tree to the log tree.

This regression happens due to the fact that that series of cleanups
made btrfs_set_prop() call the old function do_setxattr() (which is now
named btrfs_setxattr()), and not the old version of btrfs_setxattr(),
which is now called btrfs_setxattr_trans().

Fix this by setting the BTRFS_INODE_COPY_EVERYTHING bit in the current
btrfs_setxattr() function and remove it from everywhere else, including
its setup at btrfs_ioctl_setflags(). This is cleaner, avoids similar
regressions in the future, and centralizes the setup of the bit. After
all, the need to setup this bit should only be in the xattrs module,
since it is an implementation of xattrs.

Fixes: 04e6863b19 ("btrfs: split btrfs_setxattr calls regarding transaction")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-06-17 16:37:17 +02:00
Christian Brauner
22567590b2 netfilter: bridge: namespace bridge netfilter sysctls
Currently, the /proc/sys/net/bridge folder is only created in the initial
network namespace. This patch ensures that the /proc/sys/net/bridge folder
is available in each network namespace if the module is loaded and
disappears from all network namespaces when the module is unloaded.

In doing so the patch makes the sysctls:

bridge-nf-call-arptables
bridge-nf-call-ip6tables
bridge-nf-call-iptables
bridge-nf-filter-pppoe-tagged
bridge-nf-filter-vlan-tagged
bridge-nf-pass-vlan-input-dev

apply per network namespace. This unblocks some use-cases where users would
like to e.g. not do bridge filtering for bridges in a specific network
namespace while doing so for bridges located in another network namespace.

The netfilter rules are afaict already per network namespace so it should
be safe for users to specify whether bridge devices inside a network
namespace are supposed to go through iptables et al. or not. Also, this can
already be done per-bridge by setting an option for each individual bridge
via Netlink. It should also be possible to do this for all bridges in a
network namespace via sysctls.

Cc: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 16:36:31 +02:00
Christian Brauner
ff6d090d0d netfilter: bridge: port sysctls to use brnf_net
This ports the sysctls to use struct brnf_net.

With this patch we make it possible to namespace the br_netfilter module in
the following patch.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 16:36:30 +02:00
Pablo Neira Ayuso
9911c1139f netfilter: xt_owner: bail out with EINVAL in case of unsupported flags
Reject flags that are not supported with EINVAL.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 16:36:30 +02:00
Florian Westphal
87e389b4c2 netfilter: conntrack: small conntrack lookup optimization
____nf_conntrack_find() performs checks on the conntrack objects in
this order:

1. if (nf_ct_is_expired(ct))

This fetches ct->timeout, in third cache line.

The hnnode that is used to store the list pointers resides in the first
(origin) or second (reply tuple) cache lines.

This test rarely passes, but its necessary to reap obsolete entries.

2. if (nf_ct_is_dying(ct))

This fetches ct->status, also in third cache line.

The test is useless, and can be removed:
  Consider:
     cpu0                                           cpu1
    ct = ____nf_conntrack_find()
    atomic_inc_not_zero(ct) -> ok
    nf_ct_key_equal -> ok
    is_dying -> DYING bit not set, ok
                                                    set_bit(ct, DYING);
						    ... unhash ... etc.
    return ct
    -> returning a ct with dying bit set, despite
    having a test for it.

This (unlikely) case is fine - refcount prevents ct from getting free'd.

3. if (nf_ct_key_equal(h, tuple, zone, net))

nf_ct_key_equal checks in following order:

1. Tuple equal (first or second cacheline)
2. Zone equal (third cacheline)
3. confirmed bit set (->status, third cacheline)
4. net namespace match (third cacheline).

Swapping "timeout" and "cpu" places timeout in the first cacheline.
This has two advantages:

1. For a conntrack that won't even match the original tuple,
   we will now only fetch the first and maybe the second cacheline
   instead of always accessing the 3rd one as well.

2.  in case of TCP ct->timeout changes frequently because we
    reduce/increase it when there are packets outstanding in the network.

The first cacheline contains both the reference count and the ct spinlock,
i.e. moving timeout there avoids writes to 3rd cacheline.

The restart sequence in __nf_conntrack_find() is removed, if we found a
candidate, but then fail to increment the refcount or discover the tuple
has changed (object recycling), just pretend we did not find an entry.

A second lookup won't find anything until another CPU adds a new conntrack
with identical tuple into the hash table, which is very unlikely.

We have the confirmation-time checks (when we hold hash lock) that deal
with identical entries and even perform clash resolution in some cases.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 16:35:30 +02:00
Stéphane Veyret
857b46027d netfilter: nft_ct: add ct expectations support
This patch allows to add, list and delete expectations via nft objref
infrastructure and assigning these expectations via nft rule.

This allows manual port triggering when no helper is defined to manage a
specific protocol. For example, if I have an online game which protocol
is based on initial connection to TCP port 9753 of the server, and where
the server opens a connection to port 9876, I can set rules as follow:

table ip filter {
    ct expectation mygame {
        protocol udp;
        dport 9876;
        timeout 2m;
        size 1;
    }

    chain input {
        type filter hook input priority 0; policy drop;
        tcp dport 9753 ct expectation set "mygame";
    }

    chain output {
        type filter hook output priority 0; policy drop;
        udp dport 9876 ct status expected accept;
    }
}

Signed-off-by: Stéphane Veyret <sveyret@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-06-17 16:35:20 +02:00
Suman Anna
833123386c arm64: dts: ti: k3-am65: Add R5F ranges in interconnect nodes
Add the address spaces for the R5F cores in MCU domain to the ranges
property of the cbass_mcu interconnect node so that the addresses
within the R5F nodes can be translated properly by the relevant OF
address API.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:32:51 +03:00
Suman Anna
f853f00531 arm64: dts: ti: k3-am65-mcu: Add the MCU RAM node
Add the on-chip SRAM present within the MCU domain as a mmio-sram node.
The K3 AM65x SoCs have 512 KB of such memory. Any specific memory range
within this RAM needed by a software module ought to be reserved using
an appropriate child node.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:31:31 +03:00
Suman Anna
0ded541218 arm64: dts: ti: k3-am65: Add MCU SRAM ranges in interconnect nodes
Add the address space for the MCU SRAM memory to the ranges property
of the cbass_mcu interconnect node so that the addresses within the
mcu_sram nodes and its children can be translated properly by the
relevant OF address API.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:31:30 +03:00
Keerthy
c67f7388a6 arm64: dts: ti: am654-base-board: Add gpio_keys node
There are 2 push buttons: SW5 and SW6 that are basically connected to
WKUP_GPIO0_24 and WKUP_GPIO0_27 respectively. Add the respective
nodes and the pinctrl data to set the mode to GPIO and Input.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:29 +03:00
Keerthy
980cc42754 arm64: dts: ti: am6-main: Add gpio nodes
Add gpio0/1 nodes under main domain. They have 96 and 90 gpios
respectively and all are capable of generating banked interrupts.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Keerthy
7a558c4697 arm64: dts: ti: am6-wakeup: Add gpio node
Add gpio0 node under wakeup domain. This has 56 gpios
and all are capable of generating banked interrupts.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Lokesh Vutla
5fec389feb arm64: dts: ti: k3-am654: Add interrupt controllers in wakeup domain
Wakeup domain in AM654 SoC has an interrupt router connected to gpio
in wakeup domain. Add DT node for this interrupt router.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Lokesh Vutla
cba9943cde arm64: dts: ti: k3-am654: Add interrupt controllers in main domain
Main domain in AM654 has the following interrupt controller instances:
- Main Domain GPIO Interrupt router connected to gpio in main domain.
- Under the Main Domain Navigator Subsystem(NAVSS)
    - Main Navss Interrupt Router connected to main navss inta and mailboxes.
    - Main Navss Interrupt Aggregator connected to main domain UDMASS

Add DT nodes for the above three interrupt controllers available
in main domain.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Lokesh Vutla
f5a5d83f16 arm64: dts: ti: k3-am654: Update compatible for dmsc
Use the am654 specific compatible for dmsc. This allows to use
the am654 specific RM mapping table.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Andy Shevchenko
55535589eb regmap: lzo: Switch to bitmap_zalloc()
Switch to bitmap_zalloc() to show clearly what we are allocating.
Besides that it returns pointer of bitmap type instead of opaque void *.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 15:18:44 +01:00
Stephen Boyd
c8edb316b9 clk: Do a DT parent lookup even when index < 0
We want to allow the parent lookup to happen even if the index is some
value less than 0. This may be the case if a clk provider only specifies
the .name member to match a string in the "clock-names" DT property. We
shouldn't require that the index be >= 0 to make this use case work.

Fixes: 601b6e9330 ("clk: Allow parents to be specified via clkspec index")
Reported-by: Alexandre Mergnat <amergnat@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-17 07:13:54 -07:00
Rolf Eike Beer
259931fd3b riscv: remove unused barrier defines
They were introduced in commit fab957c11e ("RISC-V: Atomic and
Locking Code") long after commit 2e39465abc ("locking: Remove
deprecated smp_mb__() barriers") removed the remnants of all previous
instances from the tree.

Signed-off-by: Rolf Eike Beer <eb@emlix.com>
[paul.walmsley@sifive.com: stripped spurious mbox header from patch
 description; fixed commit references in patch header]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-06-17 07:09:43 -07:00
Mika Kuoppala
9ee7250384 drm/i915/gtt: Generalize alloc_pd
Allocate all page directory variants with alloc_pd. As
the lvl3 and lvl4 variants differ in manipulation, we
need to check for existence of backing phys page before accessing
it.

v2: use err in returns

Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614164350.30415-5-mika.kuoppala@linux.intel.com
2019-06-17 16:32:56 +03:00
Mika Kuoppala
56ab674190 drm/i915/gtt: Introduce init_pd
All page directories, excluding last level, are initialized with
pointer to next level page directories. Make common function for it.

Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614164350.30415-4-mika.kuoppala@linux.intel.com
2019-06-17 16:32:10 +03:00
Mika Kuoppala
4fba8764b6 drm/i915/gtt: Introduce init_pd_with_page
We set the page directory entries to point into a page table.
There is no gen specifics in here so make it simple and
obvious.

Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614164350.30415-3-mika.kuoppala@linux.intel.com
2019-06-17 16:31:26 +03:00
Mika Kuoppala
b5b7bef9ca drm/i915/gtt: Use a common type for page directories
All page directories are identical in function, only the position in the
hierarchy differ. Use same base type for directory functionality.

v2: cleanup, size always 512, init to null

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614164350.30415-2-mika.kuoppala@linux.intel.com
2019-06-17 16:30:54 +03:00
Mika Kuoppala
7d82cc353a drm/i915/gtt: No need to zero the table for page dirs
We set them to scratch right after allocation so prevent
useless zeroing before.

v2: atomic_t
v3: allow pdp alloc fail

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614164350.30415-1-mika.kuoppala@linux.intel.com
2019-06-17 16:30:32 +03:00
Peter Chen
c19dffc0a9 usb: chipidea: udc: workaround for endpoint conflict issue
An endpoint conflict occurs when the USB is working in device mode
during an isochronous communication. When the endpointA IN direction
is an isochronous IN endpoint, and the host sends an IN token to
endpointA on another device, then the OUT transaction may be missed
regardless the OUT endpoint number. Generally, this occurs when the
device is connected to the host through a hub and other devices are
connected to the same hub.

The affected OUT endpoint can be either control, bulk, isochronous, or
an interrupt endpoint. After the OUT endpoint is primed, if an IN token
to the same endpoint number on another device is received, then the OUT
endpoint may be unprimed (cannot be detected by software), which causes
this endpoint to no longer respond to the host OUT token, and thus, no
corresponding interrupt occurs.

There is no good workaround for this issue, the only thing the software
could do is numbering isochronous IN from the highest endpoint since we
have observed most of device number endpoint from the lowest.

Cc: <stable@vger.kernel.org> #v3.14+
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-17 15:08:33 +02:00
Arnd Bergmann
5669245b57 ARM: omap1: remove unused variable
The cleanup of the debugfs functions left one variable behind that
should now be removed as well:

arch/arm/mach-omap1/clock.c:1008:6: error: unused variable 'err' [-Werror,-Wunused-variable]

Fixes: d5ddd5a517 ("arm: omap1: no need to check return value of debugfs_create functions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-17 15:07:42 +02:00
Greg Kroah-Hartman
0780f3b6f0 drm/i915: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613145229.21389-1-jani.nikula@intel.com
2019-06-17 15:53:08 +03:00
Andy Shevchenko
ebc37af5e0 spi: No need to assign dummy value in spi_unregister_controller()
The device_for_each_child() doesn't require the returned value to be checked.
Thus, drop the dummy variable completely and have no warning anymore:

drivers/spi/spi.c: In function ‘spi_unregister_controller’:
drivers/spi/spi.c:2480:6: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable]
  int dummy;
      ^~~~~

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 13:50:52 +01:00
Andy Shevchenko
36f34737ff spi: Add a prototype for exported spi_set_cs_timing()
Compiler is not happy about spi_set_cs_timing() prototype.

drivers/spi/spi.c:3016:6: warning: no previous prototype for ‘spi_set_cs_timing’ [-Wmissing-prototypes]
 void spi_set_cs_timing(struct spi_device *spi, u8 setup, u8 hold,
      ^~~~~~~~~~~~~~~~~

Let's add it to the header.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-17 13:49:56 +01:00