Due to lack of ID pin interrupt event on AM335x devices, the musb dsps
driver uses polling to detect usb device attach for dual-role port.
But in the case if a micro-A cable adapter is attached without a USB device
attached to the cable, the musb state machine gets stuck in a_wait_vrise
state waiting for the MUSB_CONNECT interrupt which won't happen due to the
usb device is not attached. The state is stuck in a_wait_vrise even after
the micro-A cable is detached, which could cause VBUS retention if then the
dual-role port is attached to a host port.
To fix the problem, make a_wait_vrise as a transient state, then move the
state to either a_wait_bcon for host port or a_idle state for dual-role
port, if no usb device is attached to the port.
Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
When we emulate an MMIO instruction, we advance the CPU state within
decode_hsr(), before emulating the instruction effects.
Having this logic in decode_hsr() is opaque, and advancing the state
before emulation is problematic. It gets in the way of applying
consistent single-step logic, and it prevents us from being able to fail
an MMIO instruction with a synchronous exception.
Clean this up by only advancing the CPU state *after* the effects of the
instruction are emulated.
Cc: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
kzalloc() return should always be checked - notably in example code
where this may be seen as reference. On failure of allocation in
livepatch_fix1_dummy_alloc() respectively dummy_alloc() previous
allocation is freed (thanks to Petr Mladek <pmladek@suse.com> for
catching this) and NULL returned.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Fixes: 439e7271dc2b ("livepatch: introduce shadow variable API") Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Sasha Levin <sashal@kernel.org>
The monitor interface Rx handling of SKBs that contain only
radiotap information was buggy as it tried to access the
SKB assuming it contains a frame.
To fix this, check the RX_FLAG_NO_PSDU flag in the Rx status
(indicting that the SKB contains only radiotap information),
and do not perform data path specific processing when the flag
is set.
Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
devm_kasprintf() may return NULL on failure of internal allocation
thus the assignments are not safe if not checked. On error
rza1_pinctrl_register() respectively rza1_parse_gpiochip() return
negative values so -ENOMEM in the (unlikely) failure case of
devm_kasprintf() should be fine here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Fixes: 5a49b644b307 ("pinctrl: Renesas RZ/A1 pin and gpio controller") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Sasha Levin <sashal@kernel.org>
When bringing up a device, the code checks to see if the number of
MSIX has changed. pci_disable_msix() should be called first before
changing the number of reserved NQs/CMPL rings. This ensures that
the MSIX vectors associated with the NQs/CMPL rings are still
properly mapped when pci_disable_msix() masks the vectors.
This patch will prevent errors when RDMA support is added for the new
57500 chips. When the RDMA driver shuts down, the number of NQs is
decreased and we must use the new sequence to prevent MSIX errors.
Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Similarly to R-Car E3, RZ/G2E doesn't come with automatic
transmission registers, as such it is not considered compatible
with the existing fallback bindings.
Add SoC specific binding compatibility to allow for later
support for automatic transmission.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
The strncpy() function may leave the destination string buffer
unterminated, better use strlcpy() that we have a __weak fallback
implementation for systems without it.
In this case the 'target' buffer is coming from a list of build-ids that
are expected to have a len of at most (SBUILD_ID_SIZE - 1) chars, so
probably we're safe, but since we're using strncpy() here, use strlcpy()
instead to provide the intended safety checking without the using the
problematic strncpy() function.
This fixes this warning on an Alpine Linux Edge system with gcc 8.2:
util/probe-file.c: In function 'probe_cache__open.isra.5':
util/probe-file.c:427:3: error: 'strncpy' specified bound 41 equals destination size [-Werror=stringop-truncation]
strncpy(sbuildid, target, SBUILD_ID_SIZE);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Fixes: 1f3736c9c833 ("perf probe: Show all cached probes") Link: https://lkml.kernel.org/n/tip-l7n8ggc9kl38qtdlouke5yp5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Snapshot is expected to be fast. But if there are writers steadily
creating dirty pages in our subvolume, the snapshot may take a very long
time to complete. To fix the problem, we use tagged writepage for
snapshot flusher as we do in the generic write_cache_pages(), so we can
omit pages dirtied after the snapshot command.
This does not change the semantics regarding which data get to the
snapshot, if there are pages being dirtied during the snapshotting
operation. There's a sync called before snapshot is taken in old/new
case, any IO in flight just after that may be in the snapshot but this
depends on other system effects that might still sync the IO.
We do a simple snapshot speed test on a Intel D-1531 box:
The strncpy() function may leave the destination string buffer
unterminated, better use strlcpy() that we have a __weak fallback
implementation for systems without it.
This fixes this warning on an Alpine Linux Edge system with gcc 8.2:
util/header.c: In function 'perf_event__synthesize_event_update_unit':
util/header.c:3586:2: error: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
strncpy(ev->data, evsel->unit, size);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
util/header.c:3579:16: note: length computed here
size_t size = strlen(evsel->unit);
^~~~~~~~~~~~~~~~~~~
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Fixes: a6e5281780d1 ("perf tools: Add event_update event unit type") Link: https://lkml.kernel.org/n/tip-fiikh5nay70bv4zskw2aa858@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
The strncpy() function may leave the destination string buffer
unterminated, better use strlcpy() that we have a __weak fallback
implementation for systems without it.
This fixes this warning on an Alpine Linux Edge system with gcc 8.2:
In function 'decompress_kmodule',
inlined from 'dso__decompress_kmodule_fd' at util/dso.c:305:9:
util/dso.c:298:3: error: 'strncpy' destination unchanged after copying no bytes [-Werror=stringop-truncation]
strncpy(pathname, tmpbuf, len);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CC /tmp/build/perf/util/values.o
CC /tmp/build/perf/util/debug.o
cc1: all warnings being treated as errors
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Fixes: c9a8a6131fb6 ("perf tools: Move the temp file processing into decompress_kmodule") Link: https://lkml.kernel.org/n/tip-tl2hdxj64tt4k8btbi6a0ugw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
When using the -x option, perf stat prints CSV-style output with one
event per line. For each event, it prints the count, the unit, the
event name, the cgroup, and a bunch of other event specific fields (such
as insn per cycles).
When you use CSV-style mode, you expect a normalized output where each
event is printed with the same number of fields regardless of what it is
so it can easily be imported into a spreadsheet or parsed.
For instance, if an event does not have a unit, then print an empty
field for it.
Although this approach was implemented for the unit, it was not for the
cgroup.
When mixing cgroup and non-cgroup events, then non-cgroup events would
not show an empty field, instead the next field was printed, make
columns not line up correctly.
This patch fixes the cgroup output issues by forcing an empty field
for non-cgroup events as soon as one event has cgroup.
Commit 391f93f2ec9f ("serial: core: Rework hw-assited flow control support")
has changed the way the autoCTS mode is handled.
According to that change, serial drivers which enable H/W autoCTS mode must
set UPSTAT_AUTOCTS to prevent the serial core from inadvertently disabling
TX. This patch adds proper handling of UPSTAT_AUTOCTS flag.
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
[mszyprow: rephrased commit message] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
On (H)SCIF, sci_submit_rx() is called in the receive interrupt handler.
Hence if DMA submission fails, the interrupt handler should resume
handling reception using PIO, else no more data is received.
Make sci_submit_rx() return an error indicator, so the receive interrupt
handler can act appropriately.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Some callers of sci_submit_rx() hold the port spinlock, others don't.
During fallback to PIO, the driver needs to obtain the port spinlock.
If the lock was already held, spinlock recursion is detected, causing a
deadlock: BUG: spinlock recursion on CPU#0.
Fix this by adding a flag parameter to sci_submit_rx() for the caller to
indicate the port spinlock is already held, so spinlock recursion can be
avoided.
Move the spin_lock_irqsave() up, so all DMA disable steps are protected,
which is safe as the recently introduced dmaengine_terminate_async() can
be called in atomic context.
It's not that impossible to imagine that a device OR a btrfs image is
copied just by using the dd or the cp command. Which in case both the
copies of the btrfs will have the same fsid. If on the system with
automount enabled, the copied FS gets scanned.
We have a known bug in btrfs, that we let the device path be changed
after the device has been mounted. So using this loop hole the new
copied device would appears as if its mounted immediately after it's
been copied.
For example:
Initially.. /dev/mmcblk0p4 is mounted as /
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
mmcblk0 179:0 0 29.2G 0 disk
|-mmcblk0p4 179:4 0 4G 0 part /
|-mmcblk0p2 179:2 0 500M 0 part /boot
|-mmcblk0p3 179:3 0 256M 0 part [SWAP]
`-mmcblk0p1 179:1 0 256M 0 part /boot/efi
$ btrfs fi show
Label: none uuid: 07892354-ddaa-4443-90ea-f76a06accaba
Total devices 1 FS bytes used 1.40GiB
devid 1 size 4.00GiB used 3.00GiB path /dev/mmcblk0p4
Copy mmcblk0 to sda
$ dd if=/dev/mmcblk0 of=/dev/sda
And immediately after the copy completes the change in the device
superblock is notified which the automount scans using btrfs device scan
and the new device sda becomes the mounted root device.
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 1 14.9G 0 disk
|-sda4 8:4 1 4G 0 part /
|-sda2 8:2 1 500M 0 part
|-sda3 8:3 1 256M 0 part
`-sda1 8:1 1 256M 0 part
mmcblk0 179:0 0 29.2G 0 disk
|-mmcblk0p4 179:4 0 4G 0 part
|-mmcblk0p2 179:2 0 500M 0 part /boot
|-mmcblk0p3 179:3 0 256M 0 part [SWAP]
`-mmcblk0p1 179:1 0 256M 0 part /boot/efi
$ btrfs fi show /
Label: none uuid: 07892354-ddaa-4443-90ea-f76a06accaba
Total devices 1 FS bytes used 1.40GiB
devid 1 size 4.00GiB used 3.00GiB path /dev/sda4
The bug is quite nasty that you can't either unmount /dev/sda4 or
/dev/mmcblk0p4. And the problem does not get solved until you take sda
out of the system on to another system to change its fsid using the
'btrfstune -u' command.
Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
HS-USB found in RZ/G2E (a.k.a. r8a774c0) is very similar to the
one found in R-Car E3 (a.k.a. r8a77990), as it needs to release
the PLL reset by the UGCTRL register like R-Car E3, therefore add
r8a774c0 support in a similar fashion to what was done for the
r8a77990.
Modifty the JZ4740 driver to retrieve card detect and write
protect GPIO pins from GPIO descriptors instead of hard-coded
global numbers. Augment the only board file using this in the
process and cut down on passed in platform data.
Preserve the code setting the caps2 flags for CD and WP
as active low or high since the slot GPIO code currently
ignores the gpiolib polarity inversion semantice and uses
the raw accessors to read the GPIO lines, but set the right
polarity flags in the descriptor table for jz4740.
devm_kasprintf() may return NULL on failure of internal allocation thus
the assignments to init.name are not safe if not checked. On error
meson_mx_mmc_register_clks() returns negative values so -ENOMEM in the
(unlikely) failure case of devm_kasprintf() should be fine here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Fixes: ed80a13bb4c4 ("mmc: meson-mx-sdio: Add a driver for the Amlogic Meson8 and Meson8b SoCs") Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
The bcm2835 mmc host tends to lock up for unknown reason so reset it on
timeout. The upper mmc block layer tries retransimitting with single
blocks which tends to work out after a long wait.
This is better than giving up and leaving the machine broken for no
obvious reason.
Fixes: 660fc733bd74 ("mmc: bcm2835: Add new driver for the sdhost controller.") Signed-off-by: Michal Suchanek <msuchanek@suse.de> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
If the user issues an "mmc extcsd read", the SD controller receives
what it thinks is a SEND_IF_COND command with an unexpected data block.
The resulting operations leave the FSM stuck in READWAIT, a state which
persists until the MMC framework resets the controller, by which point
the root filesystem is likely to have been unmounted.
A less heavyweight solution is to detect the condition and nudge the
FSM by asserting the (self-clearing) FORCE_DATA_MODE bit.
Link: https://github.com/raspberrypi/linux/issues/2728 Signed-off-by: Phil Elwell <phil@raspberrypi.org> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
The kvm capability KVM_CAP_SPAPR_TCE_VFIO is used to indicate the
availability of in kernel tce acceleration for vfio. However it is
currently the case that this is only available on a powernv machine,
not for a pseries machine.
Thus make this capability dependent on having the cpu feature
CPU_FTR_HVMODE.
[paulus@ozlabs.org - fixed compilation for Book E.]
Help compiler check arguments for several utility functions used to
print items to the console by adding the "printf" attribute when
declaring those functions.
Also, declare as "static" two functions that are only used in prog.c.
All of them discovered by compiling bpftool with
-Wmissing-format-attribute -Wmissing-declarations.
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
A recent commit allows sockets bound to a VRF to receive ipv6 link local
packets. However, it only works for UDP and worse TCP connection attempts
to the LLA with the only listener bound to the VRF just hang where as
before the client gets a reset and connection refused. Fix by adjusting
ir_iif for LL addresses and packets received through a device enslaved
to a VRF.
Fixes: 6f12fa775530 ("vrf: mark skb for multicast or link-local as enslaved to VRF") Reported-by: Donald Sharp <sharpd@cumulusnetworks.com> Cc: Mike Manning <mmanning@vyatta.att-mail.com> Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
The reason is:
- set_page_dirty will increase reference of dirty page, the reference
should be cleared before wait_on_page_writeback to keep its consistency.
- some devices need stable page during page writebacking, so we
should not change page's data.
Similar to other qcom targets, gcc_mmss_noc_cfg_ahb_clk should not be
disabled. Any mmss access depends on this clock, and its been observed
that enabling mmssnoc_axi_rpm_clk with rpmcc results in an implicit
access to mmss and will crash the system if gcc_mmss_noc_cfg_ahb_clk is
disabled.
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org> Fixes: 4807c71cc688 (arm64: dts: Add msm8998 SoC and MTP board support) Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
This patch fixes the udmabuf selftest. Currently the selftest is broken.
I fixed the selftest by setting the F_SEAL_SHRINK seal on the memfd
file descriptor which is required by udmabuf and added the test to
the selftest Makefile.
eukrea-tlv320.c machine driver runs on non-DT platforms
and include <asm/mach-types.h> header file in order to be able
to use some machine_is_eukrea_xxx() macros.
Building it for ARM64 causes the following build error:
sound/soc/fsl/eukrea-tlv320.c:28:10: fatal error: asm/mach-types.h: No such file or directory
Avoid this error by not allowing to build the SND_SOC_EUKREA_TLV320
driver when ARM64 is selected.
This is needed in preparation for the i.MX8M support.
Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Fabio Estevam <festevam@gmail.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
WARNING: vmlinux.o(.text+0x19f90): Section mismatch in reference from the function littleton_init_lcd() to the function .init.text:pxa_set_fb_info()
The function littleton_init_lcd() references
the function __init pxa_set_fb_info().
This is often because littleton_init_lcd lacks a __init
annotation or the annotation of pxa_set_fb_info is wrong.
WARNING: vmlinux.o(.text+0xf824): Section mismatch in reference from the function zeus_register_ohci() to the function .init.text:pxa_set_ohci_info()
The function zeus_register_ohci() references
the function __init pxa_set_ohci_info().
This is often because zeus_register_ohci lacks a __init
annotation or the annotation of pxa_set_ohci_info is wrong.
WARNING: vmlinux.o(.text+0xf95c): Section mismatch in reference from the function cm_x300_init_u2d() to the function .init.text:pxa3xx_set_u2d_info()
The function cm_x300_init_u2d() references
the function __init pxa3xx_set_u2d_info().
This is often because cm_x300_init_u2d lacks a __init
annotation or the annotation of pxa3xx_set_u2d_info is wrong.
For some reason, my older GCC (< 4.8) isn't smart enough to optimize the
!__builtin_constant_p() branch in bpf_htons, I see:
error: implicit declaration of function '__builtin_bswap16'
Let's use __bpf_constant_htons as suggested by Daniel Borkmann.
I tried to use simple htons, but it produces the following:
test_progs.c:54:17: error: braced-group within expression allowed only
inside a function
.eth.h_proto = htons(ETH_P_IP),
Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
In the ioctl_event_ctl() SWITCHTEC_IOCTL_EVENT_IDX_ALL case, we call
event_ctl() several times with the same "ctl" struct. Each call clobbers
ctl.flags, which leads to the problem that we may not actually enable or
disable all events as the user requested.
Preserve the event flag value with a temporary variable.
When inode is corrupted so that extent type is invalid, some functions
(such as udf_truncate_extents()) will just BUG. Check that extent type
is valid when loading the inode to memory.
Reported-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Sasha Levin <sashal@kernel.org>
In Spectrum-2, higher priority value wins and priority valid values are in
the range of {1,cap_kvd_size-1}. mlxsw_sp_acl_tcam_priority_get converts
from lower-bound priorities alike tc flower to Spectrum-2 HW range. Up
until now tc flower did not provide priority 0 or reached the maximal
value, however multicast routing does provide priority 0.
Therefore, Change mlxsw_sp_acl_tcam_priority_get to verify priority is in
the correct range. Make sure priority is never set to zero and never
exceeds the maximal allowed value.
Signed-off-by: Nir Dotan <nird@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> Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/lightnvm/core.c: In function ‘nvm_get_bb_meta’:
drivers/lightnvm/core.c:977: warning: ‘ret’ may be used uninitialized in this function
and
drivers/nvme/host/lightnvm.c: In function ‘nvme_nvm_get_chk_meta’:
drivers/nvme/host/lightnvm.c:580: warning: ‘ret’ may be used uninitialized in this function
Indeed, if (for the former) the number of channels or LUNs is zero, or
(for both) the passed number of chunks is zero, ret will be returned
uninitialized.
Fix this by preinitializing ret to zero.
Fixes: aff3fb18f957de93 ("lightnvm: move bad block and chunk state logic to core") Fixes: a294c199455187d1 ("lightnvm: implement get log report chunk helpers") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
It was observed that when using seqentional mode contrary to the
documentation, the SS bit (which is supposed to only be set if
automatic/sequence command completed normally), is sometimes set
together with NA (NAK in address phase) causing transfer to falsely be
considered successful.
My assumption is that this does not happen during manual mode since the
controller is stopping its work the moment it sets NA/ND bit in status
register. This is not the case in Automatic/Sequentional mode where it
is still working to send STOP condition and the actual status we get
depends on the time when the ISR is run.
This patch changes the order of checking status bits in ISR - error
conditions are checked first and only if none of them occurred, the
transfer may be considered successful. This is required to introduce
using of sequentional mode in next patch.
Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
Make sure we only look up valid lba addresses on the resubmission path.
If an lba is invalidated in the write buffer, that sector will be
submitted to disk (as it is already mapped to a ppa), and that write
might fail, resulting in a crash when trying to look up the lba in the
mapping table (as the lba is marked as invalid).
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com> Reviewed-by: Javier González <javier@javigon.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
There exists a case where a flush of a plane/dma may have been triggered
& started from an async commit. If that plane/dma is subsequently disabled
by the next commit, the flush register will continue to hold the flush
bit for the disabled plane. Since the bit remains active,
pending_kickoff_cnt will never decrement and we'll miss frame_done
events.
This patch limits the check of flush_register to include only those bits
which have been updated with the latest commit.
Changes in v2:
- None
Reviewed-by: Jeykumar Sankaran <jsanka@codeaurora.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Fix the dsi clock names in the DSI 10nm PLL driver to
match the names in the dispcc driver as those are
according to the clock plan of the chipset.
Changes in v2:
- Update the clock diagram with the new clock name
Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
- a new request arrives, one thread(let's call it A) is pending in
optee_supp_req() with req->busy is initial value false.
- tee-supplicant is killed, then optee_supp_release() is called, this
function calls list_del(&req->link), and set supp->ctx to NULL. And
it also wake up process A.
- process A continues, it firstly checks supp->ctx which is NULL,
then checks req->busy which is false, at last run list_del(&req->link).
This triggers double list_del() and results kernel panic.
For solve this problem, we rename req->busy to req->in_queue, and
associate it with state of whether req is linked to supp->reqs. So we
can just only check req->in_queue to make decision calling list_del()
or not.
The value of opp_table->regulator_count is not very consistent right now
and it may end up being 0 while we do have a "opp-microvolt" property in
the OPP table. It was kept that way as we used to check if any
regulators are set with the OPP core for a device or not using value of
regulator_count.
Lets use opp_table->regulators for that purpose as the meaning of
regulator_count is going to change in the later patches.
of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.
bl_idle_init() doesn't do that, so fix it.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Shift by one the registers for tachometers (7 - 12).
This fix is relevant for the same new systems MQMB7, MSN37, MSN34,
which are about to be released to the customers.
At the moment, none of them is at customers sites. The customers will
not suffer from this change.
This fix is necessary, because register used before for tachometer 7
has been than reserved for the second PWM for newer systems, which are
not supported yet in mlx-platform driver. So registers of tachometers
7-12 have been shifted by one.
Same as other i.MX6 SoCs, ensure unused MMDC channel's
handshake is bypassed, this is to make sure no request
signal will be generated when periphe_clk_sel is changed
or SRC warm reset is triggered.
The driver overrides the error codes returned by platform_get_irq() to
-EINVAL, so if it returns -EPROBE_DEFER, the driver would fail the probe
permanently instead of the deferred probing. Switch to propagating the
error code upstream, still checking/overriding IRQ0 as libata regards it
as "no IRQ" (thus polling) anyway...
Fixes: 9ec36cafe43b ("of/irq: do irq resolution in platform_get_irq") Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
After removing an entry from a queue (e.g. reading an event in
arm_smmu_evtq_thread()) it is necessary to advance the MMIO consumer
pointer to free the queue slot back to the SMMU. A memory barrier is
required here so that all reads targetting the queue entry have
completed before the consumer pointer is updated.
The implementation of queue_inc_cons() relies on a writel() to complete
the previous reads, but this is incorrect because writel() is only
guaranteed to complete prior writes. This patch replaces the call to
writel() with an mb(); writel_relaxed() sequence, which gives us the
read->write ordering which we require.
Cc: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
qcom,smmu-v2 is an arm,smmu-v2 implementation with specific
clock and power requirements.
On msm8996, multiple cores, viz. mdss, video, etc. use this
smmu. On sdm845, this smmu is used with gpu.
Add bindings for the same.
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
The GITS_TRANSLATER MMIO doorbell register in the ITS hardware is
architected to be 4 bytes in size, yet on hi1620 and earlier, Hisilicon
have allocated the adjacent 4 bytes to carry some IMPDEF sideband
information which results in an 8-byte MSI payload being delivered when
signalling an interrupt:
This poses no problem for the ITS hardware because the adjacent 4 bytes
are reserved in the memory map. However, when delivering MSIs to memory,
as we do in the SMMUv3 driver for signalling the completion of a SYNC
command, the extended payload will corrupt the 4 bytes adjacent to the
"sync_count" member in struct arm_smmu_device. Fortunately, the current
layout allocates these bytes to padding, but this is fragile and we
should make this explicit.
Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
[will: Rewrote commit message and comment] Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
In stream mode, when fast-forwarding TRBs, the stream number
is not cleared causing the new stream to not get assigned. So
we don't want controller to carry on transfers when short packet
is received. So disable the CSP for stream capable endpoint.
This is based on the 3.30a Programming guide, where table 3-1
device descriptor structure field definitions says for CSP bit
If this bit is 0, the controller generates an XferComplete event
and remove the stream. So if we keep CSP as 1 then switching between
streams would not happen as in stream mode, when fast-forwarding
TRBs, the stream number is not cleared causing the new stream to not get
assigned.
TPA6130A2 SD pin on RDU1 is not really controlled by SoC and instead
is only meant to notify the system that audio was "muted" by external
actors. To accommodate that, drop "power-gpio" property of hpa1 node as
well as specify a name for that GPIO so that userspace can access it.
The datasheet says we must stop the timer before changing the clock
divider. This can happen when the restart handler is called while the
watchdog is running.
Here "flash" is obviously the whole device and we know "rootfs"
is a bogus hack to point to a squashfs rootfs inside of the main
"upgrade partition". We know "RedBoot" is the first 0x40000 of
the flash and the "upgrade" partition follows from 0x40000 to
0x1f8000. So we have mtd0, 1, 4 and 6 covered.
A long running stress test on a custom board shipping an AXG SoCs and a
Realtek RTL8211F PHY revealed that after a few hours the connection
speed would drop drastically, from ~1000Mbps to ~3Mbps. At the same time
the 'macirq' (eth0) IRQ would stop being triggered at all and as
consequence the GMAC IRQs never ACKed.
After a painful investigation the problem seemed to be due to a wrong
defined IRQ type for the GMAC IRQ that should be LEVEL_HIGH instead of
EDGE_RISING.
The change in the macirq IRQ type also solved another long standing
issue affecting this SoC/PHY where EEE was causing the network
connection to die after stressing it with iperf3 (even though much
sooner). It's now possible to remove the 'eee-broken-1000t' quirk as
well.
Add support for the third loop filter mode
V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY,
and fix V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA and
V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA controls.
The filter offset controls are signed values in the -6 to 6 range and
are stored into the slice header fields slice_alpha_c0_offset_div2 and
slice_beta_offset_div2. The actual filter offsets FilterOffsetA/B are
double their value, in range of -12 to 12.
Rename variables to more closely match the nomenclature in the H.264
specification.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
For micro-mips, srlv inside POOL32A encoding space should use 0x50
sub-opcode, NOT 0x90.
Some early version ISA doc describes the encoding as 0x90 for both srlv and
srav, this looks to me was a typo. I checked Binutils libopcode
implementation which is using 0x50 for srlv and 0x90 for srav.
v1->v2:
- Keep mm_srlv32_op sorted by value.
Fixes: f31318fdf324 ("MIPS: uasm: Add srlv uasm instruction") Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Jiong Wang <jiong.wang@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
It was noticed that unbinding and rebinding the KSZ8851 ethernet
resulted in the driver reporting "failed to read device ID" at probe.
Probing the reset line with a 'scope while repeatedly attempting to
bind the driver in a shell loop revealed that the KSZ8851 RSTN pin is
constantly held at zero, meaning the device is held in reset, and
does not respond on the SPI bus.
Experimentation with the startup delay on the regulator set to 50ms
shows that the reset is positively released after 20ms.
Schematics for this board are not available, and the traces are buried
in the inner layers of the board which makes tracing where the RSTN pin
extremely difficult. We can only guess that the RSTN pin is wired to a
reset generator chip driven off the ethernet supply, which fits the
observed behaviour.
Include this delay in the regulator startup delay - effectively
treating the reset as a "supply stable" indicator.
This can not be modelled as a delay in the KSZ8851 driver since the
reset generation is board specific - if the RSTN pin had been wired to
a GPIO, reset could be released earlier via the already provided support
in the KSZ8851 driver.
This also got confirmed by Peter Ujfalusi <peter.ujfalusi@ti.com> based
on Blaze schematics that should be very close to SDP4430:
TPS22902YFPR is used as the regulator switch (gpio48 controlled):
Convert arm boot_lock to raw The VOUT is routed to TPS3808G01DBV.
(SCH Note: Threshold set at 90%. Vsense: 0.405V).
According to the TPS3808 data sheet the RESET delay time when Ct is
open (this is the case in the schema): MIN/TYP/MAX: 12/20/28 ms.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[tony@atomide.com: updated with notes from schematics from Peter] Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Since commit 1137ceee76ba ("ARM: OMAP1: ams-delta: Don't request unused
GPIOs"), on-board audio has appeared muted. Believed to be unused GPIO
pin "hookflash1", apparently set high regardless of the corresponding
bit of "latch2" port attempted to be set low during .init_machine(),
has been identified as the reason.
According to Amstrad E3 wiki, the purpose of the pin hasn't been
clearly identified. Original Amstrad software used to produce a high
pulse on it when the phone was taken off hook or recall was pressed.
With the current finding, we can assume the pin provides a kind of
audio mute function.
Proper resolution of the issue should be done in two steps:
- resolution of an issue with the pin state not reflecting the value
the corresponding bit of the port was attempted to be initialized
with,
- extension of on-board audio driver with a new control.
For now, rename the pin to "audio_mute" to reflect its function and,
as a quick fix, hogg it as output low so on-board audio can produce
audible sound again.
Currently v4l2_device_register_subdev_nodes() does not initialize the
dev_parent field of the video_device structs it creates for subdevices
being registered. This leads to __video_register_device() falling back
to the parent device of associated v4l2_device struct, which often does
not match the physical device the subdevice is registered for.
Due to the problem above, the links between real devices and v4l-subdev
nodes cannot be obtained from sysfs, which might be confusing for the
userspace trying to identify the hardware.
Fix this by initializing the dev_parent field of the video_device struct
with the value of dev field of the v4l2_subdev struct. In case of
subdevices without a parent struct device, the field will be NULL and the
old behavior will be preserved by the semantics of
__video_register_device().
Signed-off-by: Tomasz Figa <tfiga@chromium.org> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
The parameter is still there but it's ignored. We need to check its
value before deciding to go into passthrough mode for AMD IOMMU v2
capable device.
We occasionally use this parameter to force v2 capable device into
translation mode to debug memory corruption that we suspect is
caused by DMA writes.
To address the following comment from Joerg Roedel on the first
version, v2 capability of device is completely ignored.
> This breaks the iommu_v2 use-case, as it needs a direct mapping for the
> devices that support it.
And from Documentation/admin-guide/kernel-parameters.txt:
This option does not override iommu=pt
devm_kstrdup() may return NULL if internal allocation failed.
Thus using label, name is unsafe without checking. Therefor
in the unlikely case of allocation failure, sx150x_probe() simply
returns -ENOMEM.
The error cases of mediatek_gpio_bank_probe() would go unnoticed (except
for the dev_err() messages). The probe function should return an error
if one of the banks failed to initialize properly indicated by
not returning non-0.
Fixes: 4ba9c3afda41 ("gpio: mt7621: Add a driver for MT7621") Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Acked-by: Sean Wang <sean.wang@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
kasprintf() may return NULL on failure of internal allocation thus the
assigned label is not safe if not explicitly checked. On error
mediatek_gpio_bank_probe() returns negative values so -ENOMEM in the
(unlikely) failure case should be fine here.
Fixes: 4ba9c3afda41 ("gpio: mt7621: Add a driver for MT7621") Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Sean Wang <sean.wang@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
The missed break statement in the outer switch makes the code fall through
always and thus always same value will be printed.
Besides that, compiler warns about missed fall through marker:
drivers/usb/dwc3/./trace.h: In function ‘trace_raw_output_dwc3_log_trb’:
drivers/usb/dwc3/./trace.h:246:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
switch (pcm) {
^~~~~~
Add the missing break statement to work correctly without compilation
warnings.
Fixes: fa8d965d736b ("usb: dwc3: trace: pretty print high-bandwidth transfers too") Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Currently, When a reserved operation is completed, its entry in the send
queue will not be unreserved, which leads to the miscalculation of
qp->s_avail and thus the triggering of a WARN_ON call trace. This patch
fixes the problem by unreserving the reserved operation when it is
completed.
Fixes: 856cc4c237ad ("IB/hfi1: Add the capability for reserved operations") Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Propagate error code back to userspace if writing the /sys/.../uevent
file fails. Before, the write operation always returned with success,
even if we failed to recognize the input string or if we failed to
generate the uevent itself.
With the error codes properly propagated back to userspace, we are
able to react in userspace accordingly by not assuming and awaiting
a uevent that is not delivered.
Move the async_synchronize_full call out of __device_release_driver and
into driver_detach.
The idea behind this is that the async_synchronize_full call will only
guarantee that any existing async operations are flushed. This doesn't do
anything to guarantee that a hotplug event that may occur while we are
doing the release of the driver will not be asynchronously scheduled.
By moving this into the driver_detach path we can avoid potential deadlocks
as we aren't holding the device lock at this point and we should not have
the driver we want to flush loaded so the flush will take care of any
asynchronous events the driver we are detaching might have scheduled.
Fixes: 765230b5f084 ("driver-core: add asynchronous probing support for drivers") Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
When setting LINK tolerance, node timer interval will be calculated
base on the LINK with lowest tolerance.
But when calculated, the old node timer interval only updated if current
setting value (tolerance/4) less than old ones regardless of number of
links as well as links' lowest tolerance value.
This caused to two cases missing if tolerance changed as following:
Case 1:
1.1/ There is one link (L1) available in the system
1.2/ Set L1's tolerance from 1500ms => lower (i.e 500ms)
1.3/ Then, fallback to default (1500ms) or higher (i.e 2000ms)
Expected:
node timer interval is 1500/4=375ms after 1.3
Result:
node timer interval will not being updated after changing tolerance at 1.3
since its value 1500/4=375ms is not less than 500/4=125ms at 1.2.
Case 2:
2.1/ There are two links (L1, L2) available in the system
2.2/ L1 and L2 tolerance value are 2000ms as initial
2.3/ Set L2's tolerance from 2000ms => lower 1500ms
2.4/ Disable link L2 (bring down its bearer)
Expected:
node timer interval is 2000ms/4=500ms after 2.4
Result:
node timer interval will not being updated after disabling L2 since
its value 2000ms/4=500ms is still not less than 1500/4=375ms at 2.3
although L2 is already not available in the system.
To fix this, we start the node interval calculation by initializing it to
a value larger than any conceivable calculated value. This way, the link
with the lowest tolerance will always determine the calculated value.
Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
devm_kasprintf() may return NULL on failure of internal allocation thus
the assignment to .label is not safe if not checked. On error
npcm7xx_gpio_of() returns negative values so -ENOMEM in the
(unlikely) failure case of devm_kasprintf() should be fine here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Fixes: 3b588e43ee5c ("pinctrl: nuvoton: add NPCM7xx pinctrl and GPIO driver") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
The iTXQs stop/wake queue mechanism involves a whole bunch
of locks and this is probably why the call to
ieee80211_wake_txqs is deferred to a tasklet when called from
__ieee80211_wake_queue.
Another advantage of that is that ieee80211_wake_txqs might
call the wake_tx_queue() callback and then the driver may
call mac80211 which will call it back in the same context.
The bug I saw is that when we send a deauth frame as a
station we do:
flush(drop=1)
tx deauth
flush(drop=0)
While we flush we stop the queues and wake them up
immediately after we finished flushing. The problem here is
that the tasklet that de-facto enables the queue may not have
run until we send the deauth. Then the deauth frame is sent
to the driver (which is surprising by itself), but the driver
won't get anything useful from ieee80211_tx_dequeue because
the queue is stopped (or more precisely because
vif->txqs_stopped[0] is true).
Then the deauth is not sent. Later on, the tasklet will run,
but that'll be too late. We'll already have removed all the
vif etc...
Fix this by calling ieee80211_wake_txqs synchronously if we
are not waking up the queues from the driver (we check the
reason to determine that). This makes the code really
convoluted because we may call ieee80211_wake_txqs from
__ieee80211_wake_queue. The latter assumes that
queue_stop_reason_lock has been taken by the caller and
ieee80211_wake_txqs may release the lock to send the frames.
All the audio interfaces on Allwinner SoCs need to change their module
clocks during operation, to switch between support for 44.1 kHz and 48
kHz family sample rates. The clock rate for the module clocks is
governed by their upstream audio PLL. The module clocks themselves only
have a gate, and sometimes a divider or mux. Thus any rate changes need
to be propagated upstream.
Set the CLK_SET_RATE_PARENT flag for all audio module clocks to achieve
this.
Fix the issue: device doesn't accept LGO_U1/U2:
1. set SW_U1/U2_ACCEPT_ENABLE to eanble controller to accept LGO_U1/U2
by default;
2. enable/disable controller to initiate requests for transition into
U1/U2 by SW_U1/U2_REQUEST_ENABLE instead of SW_U1/U2_ACCEPT_ENABLE;
tk_core.seq is initialized open coded, but that misses to initialize the
lockdep map when lockdep is enabled. Lockdep splats involving tk_core seq
consequently lack a name and are hard to read.
Use the proper initializer which takes care of the lockdep map
initialization.
When initializing a hub we want to give a USB3 port in link training
the same debounce delay time before autosuspening the hub as already
trained, connected enabled ports.
USB3 ports won't reach the enabled state with "current connect status" and
"connect status change" bits set until the USB3 link training finishes.
Catching the port in link training (polling) and adding the debounce delay
prevents unnecessary failed attempts to autosuspend the hub.
Power down feature of DWC2 module integrated in Samsung SoCs doesn't work
properly or needs some additional handling in PHY or SoC glue layer, so
disable it for now. Without disabling power down, DWC2 causes random memory
trashes and fails enumeration if there is no USB link to host on driver
probe.
Fixes: 03ea6d6e9e1ff1 ("usb: dwc2: Enable power down") Acked-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
The Spreadtrum DMA link-list mode is always one cyclic transfer,
so we should clear the SPRD_DMA_LLIST_END flag for the link-list
configuration. Moreover add cyclic callback support for the cyclic
transfer.
Signed-off-by: Eric Long <eric.long@spreadtrum.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Availability of TRB's is calculated using dwc3_calc_trbs_left(), which
determines total available TRB's based on the HWO bit set in a TRB.
In the present code, __dwc3_prepare_one_trb() is called with a TRB which
needs to be prepared for transfer. This __dwc3_prepare_one_trb() calls
dwc3_calc_trbs_left() to determine total available TRBs and set IOC bit
if the total available TRBs are zero. Since the present working TRB (which
is passed as an argument to __dwc3_prepare_one_trb() ) doesn't yet have
the HWO bit set before calling dwc3_calc_trbs_left(), there are chances
that dwc3_calc_trbs_left() wrongly calculates this present working TRB
as free(since the HWO bit is not yet set) and returns the total available
TRBs as greater than zero (including the present working TRB). This could
be a problem.
This patch corrects the above mentioned problem in __dwc3_prepare_one_trb()
by increementing the dep->trb_enqueue at the last (after preparing the TRB)
instead of increementing at the start and setting the IOC bit only if the
total available TRBs returned by dwc3_calc_trbs_left() is 1 . Since we are
increementing the dep->trb_enqueue at the last, the present working TRB is
also considered as available by dwc3_calc_trbs_left() and non zero value is
returned . So, according to the modified logic, when the total available
TRBs is equal to 1 that means the total available TRBs in the pool are 0.
Rename SPI controller node in the XTFPGA DTS to spi@...
This fixes the following build warnings:
arch/xtensa/boot/dts/kc705_nommu.dtb: Warning (spi_bus_bridge):
/soc/spi-master@0d0a0000: node name for SPI buses should be 'spi'
arch/xtensa/boot/dts/kc705_nommu.dtb: Warning (spi_bus_reg):
Failed prerequisite 'spi_bus_bridge'
arch/xtensa/boot/dts/lx200mx.dtb: Warning (spi_bus_bridge):
/soc/spi-master@0d0a0000: node name for SPI buses should be 'spi'
arch/xtensa/boot/dts/lx200mx.dtb: Warning (spi_bus_reg):
Failed prerequisite 'spi_bus_bridge'
arch/xtensa/boot/dts/kc705.dtb: Warning (spi_bus_bridge):
/soc/spi-master@0d0a0000: node name for SPI buses should be 'spi'
arch/xtensa/boot/dts/kc705.dtb: Warning (spi_bus_reg):
Failed prerequisite 'spi_bus_bridge'
arch/xtensa/boot/dts/ml605.dtb: Warning (spi_bus_bridge):
/soc/spi-master@0d0a0000: node name for SPI buses should be 'spi'
arch/xtensa/boot/dts/ml605.dtb: Warning (spi_bus_reg):
Failed prerequisite 'spi_bus_bridge'
arch/xtensa/boot/dts/lx60.dtb: Warning (spi_bus_bridge):
/soc/spi-master@0d0a0000: node name for SPI buses should be 'spi'
arch/xtensa/boot/dts/lx60.dtb: Warning (spi_bus_reg):
Failed prerequisite 'spi_bus_bridge'
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Function smack_key_permission() only issues smack requests for the
following operations:
- KEY_NEED_READ (issues MAY_READ)
- KEY_NEED_WRITE (issues MAY_WRITE)
- KEY_NEED_LINK (issues MAY_WRITE)
- KEY_NEED_SETATTR (issues MAY_WRITE)
A blank smack request is issued in all other cases, resulting in
smack access being granted if there is any rule defined between
subject and object, or denied with -EACCES otherwise.
Request MAY_READ access for KEY_NEED_SEARCH and KEY_NEED_VIEW.
Fix the logic in the unlikely case when both MAY_READ and
MAY_WRITE are needed. Validate access permission field for valid
contents.
We lose even config space access when we power gate the ISP
via the PUNIT. That makes lspci & co. produce gibberish.
To fix that let's try to implement actual runtime pm hooks
and inform the pci core that the device always goes to
D3cold. That will cause the pci core to resume the device
before attempting config space access.
This introduces another annoyance though. We get the
following error every time we try to resume the device:
intel_atomisp2_pm 0000:00:03.0: Refused to change power state, currently in D3
The reason being that the pci core tries to put the device
back into D0 via the standard PCI PM mechanism before
calling the driver resume hook. To fix this properly
we'd need to infiltrate the platform pm hooks (could
turn ugly real fast), or use pm domains (which don't
seem to exist on x86), or some extra early resume
hook for the driver (which doesn't exist either).
So maybe we just choose to live with the error?
Cc: Hans de Goede <hdegoede@redhat.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Darren Hart <dvhart@infradead.org> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Without CONFIG_HDMI, we get a link error for this driver:
drivers/media/i2c/tda1997x.o: In function `tda1997x_parse_infoframe':
tda1997x.c:(.text+0x2195): undefined reference to `hdmi_infoframe_unpack'
tda1997x.c:(.text+0x21b6): undefined reference to `hdmi_infoframe_log'
drivers/media/i2c/tda1997x.o: In function `tda1997x_log_infoframe':
tda1997x.c:(.text.unlikely+0x13d3): undefined reference to `hdmi_infoframe_unpack'
tda1997x.c:(.text.unlikely+0x1426): undefined reference to `hdmi_infoframe_log'
All other drivers in this directory that use HDMI select CONFIG_HDMI,
so do the same here:
Fix build errors when CONFIG_PINCTRL is not enabled.
The header file <linux/pinctrl/consumer.h> handles both CONFIG_PINCTRL
enabled and disabled cases.
CC [M] drivers/spi/spi-at91-usart.o
../drivers/spi/spi-at91-usart.c: In function 'at91_usart_spi_runtime_suspend':
../drivers/spi/spi-at91-usart.c:409:2: error: implicit declaration of function 'pinctrl_pm_select_sleep_state' [-Werror=implicit-function-declaration]
pinctrl_pm_select_sleep_state(dev);
../drivers/spi/spi-at91-usart.c: In function 'at91_usart_spi_runtime_resume':
../drivers/spi/spi-at91-usart.c:419:2: error: implicit declaration of function 'pinctrl_pm_select_default_state' [-Werror=implicit-function-declaration]
pinctrl_pm_select_default_state(dev);
Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Radu Pirea <radu.pirea@microchip.com> Cc: Mark Brown <broonie@kernel.org> Cc: linux-spi@vger.kernel.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
The base aspeed-g5.dtsi already defines a '/memory@80000000' node, so
'/memory' in the board files create a duplicate node. We're probably
getting lucky that the bootloader fixes up the memory node that the
kernel ends up using. Add the unit-address so it's merged with the base
node.
Found with DT json-schema checks.
Cc: Joel Stanley <joel@jms.id.au> Cc: Andrew Jeffery <andrew@aj.id.au> Cc: devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-aspeed@lists.ozlabs.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Marvell keeps their MMP2 datasheet secret, but there are good clues
that TWSI2 is not on 0xd4025000 on that platform, not does it use
IRQ 58. In fact, the IRQ 58 on MMP2 seems to be a signal processor:
arch/arm/mach-mmp/irqs.h:#define IRQ_MMP2_MSP 58
I'm taking a somewhat educated guess that is probably a copy & paste
error from PXA168 or PXA910 and that the real controller in fact hides
at address 0xd4031000 and uses an interrupt line multiplexed via IRQ 17.
I'm also copying some properties from TWSI1 that were missing or
incorrect.
Tested on a OLPC XO 1.75 machine, where the RTC is on TWSI2.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Tested-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
v3d_bo_get_pages() checks this to decide to map the imported buffer
instead of the backing shmem file. The caller was about to set this
value anyway, and there's no error path in between. Ideally we
wouldn't even allocate the shmem file for our imports, but that's a
more invasive fix.
Signed-off-by: Eric Anholt <eric@anholt.net> Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+") Link: https://patchwork.freedesktop.org/patch/msgid/20181128230927.10951-3-eric@anholt.net Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Dave Emett <david.emett@broadcom.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
The core ftrace code requires that when it is handed the PC of an
instrumented function, this PC is the address of the instrumented
instruction. This is necessary so that the core ftrace code can identify
the specific instrumentation site. Since the instrumented function will
be a BL, the address of the instrumented function is LR - 4 at entry to
the ftrace code.
This fixup is applied in the mcount_get_pc and mcount_get_pc0 helpers,
which acquire the PC of the instrumented function.
The mcount_get_lr helper is used to acquire the LR of the instrumented
function, whose value does not require this adjustment, and cannot be
adjusted to anything meaningful. No adjustment of this value is made on
other architectures, including arm. However, arm64 adjusts this value by
4.
This patch brings arm64 in line with other architectures and removes the
adjustment of the LR value.
Fix IBI_R11 configuration on non-radar channels for mt76x0e
driver. This patch improve system stability under heavy load.
Moreover use IBI_R11 name and remove magic numbers for
0x212c register
Fixes: 0c3b3abc9251 ("mt76x0: pci: add DFS support") Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Sasha Levin <sashal@kernel.org>
There exist very few ap messages which need to have the 'special' flag
enabled. This flag tells the firmware layer to do some pre- and maybe
postprocessing. However, it may happen that this special flag is
enabled but the firmware is unable to deal with this kind of message
and thus returns with reply code 0x41. For example older firmware may
not know the newest messages triggered by the zcrypt device driver and
thus react with reject and the named reply code. Unfortunately this
reply code is not known to the zcrypt error routines and thus default
behavior is to switch the ap queue offline.
This patch now makes the ap error routine aware of the reply code and
so userspace is informed about the bad processing result but the queue
is not switched to offline state any more.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
ce2e6db554fa ("brcmfmac: Add support for getting nvram contents from EFI variables")
we have a device driver accessing the efivars API. Several functions in
the efivars API assume __efivars is set, i.e., that they will be accessed
only after efivars_register() has been called. However, the following NULL
pointer access was reported calling efivar_entry_size() from the brcmfmac
device driver:
Disassembly showed that the local static variable __efivars is NULL,
which is not entirely unexpected given that it is a non-EFI platform.
So add a NULL pointer check to efivar_entry_size(), and to related
functions while at it. In efivars_register() a couple of sanity checks
are added as well.
Reported-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Bhupesh Sharma <bhsharma@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Eric Snowberg <eric.snowberg@oracle.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Julien Thierry <julien.thierry@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com> Cc: Sedat Dilek <sedat.dilek@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: YiFei Zhu <zhuyifei1999@gmail.com> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20181129171230.18699-9-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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