The exported function name is dma_max_mapping_size(), not
dma_direct_max_mapping_size() so that this patch fixes
the function name in the documentation.
Fixes: 133d624b1c ("dma: Introduce dma_max_mapping_size()")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The function srp_parse_in() is used both for parsing source address
specifications and for target address specifications. Target addresses
must have a port number. Having to specify a port number for source
addresses is inconvenient. Make sure that srp_parse_in() supports again
parsing addresses with no port number.
Cc: <stable@vger.kernel.org>
Fixes: c62adb7def ("IB/srp: Fix IPv6 address parsing")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Add support for reporting link state for ipoib net devices.
$ ip l set dev mlx4_ib0 up
$ ethtool mlx4_ib0 | grep Link
Link detected: yes
$ ip l set dev mlx4_ib0 down
$ ethtool mlx4_ib0 | grep Link
Link detected: no
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Pull networking fixes from David Miller:
1) Free AF_PACKET po->rollover properly, from Willem de Bruijn.
2) Read SFP eeprom in max 16 byte increments to avoid problems with
some SFP modules, from Russell King.
3) Fix UDP socket lookup wrt. VRF, from Tim Beale.
4) Handle route invalidation properly in s390 qeth driver, from Julian
Wiedmann.
5) Memory leak on unload in RDS, from Zhu Yanjun.
6) sctp_process_init leak, from Neil HOrman.
7) Fix fib_rules rule insertion semantic change that broke Android,
from Hangbin Liu.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
pktgen: do not sleep with the thread lock held.
net: mvpp2: Use strscpy to handle stat strings
net: rds: fix memory leak in rds_ib_flush_mr_pool
ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
ipv6: use READ_ONCE() for inet->hdrincl as in ipv4
Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
net: aquantia: fix wol configuration not applied sometimes
ethtool: fix potential userspace buffer overflow
Fix memory leak in sctp_process_init
net: rds: fix memory leak when unload rds_rdma
ipv6: fix the check before getting the cookie in rt6_get_cookie
ipv4: not do cache for local delivery if bc_forwarding is enabled
s390/qeth: handle error when updating TX queue count
s390/qeth: fix VLAN attribute in bridge_hostnotify udev event
s390/qeth: check dst entry before use
s390/qeth: handle limited IPv4 broadcast in L3 TX path
net: fix indirect calls helpers for ptype list hooks.
net: ipvlan: Fix ipvlan device tso disabled while NETIF_F_IP_CSUM is set
udp: only choose unbound UDP socket for multicast when not in a VRF
net/tls: replace the sleeping lock around RX resync with a bit lock
...
Pull rdma fixes from Jason Gunthorpe:
"Things are looking pretty quiet here in RDMA, not too many bug fixes
rolling in right now. The usual driver bug fixes and fixes for a
couple of regressions introduced in 5.2:
- Fix a race on bootup with RDMA device renaming and srp. SRP also
needs to rename its internal sys files
- Fix a memory leak in hns
- Don't leak resources in efa on certain error unwinds
- Don't panic in certain error unwinds in ib_register_device
- Various small user visible bug fix patches for the hfi and efa
drivers
- Fix the 32 bit compilation break"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/efa: Remove MAYEXEC flag check from mmap flow
mlx5: avoid 64-bit division
IB/hfi1: Validate page aligned for a given virtual address
IB/{qib, hfi1, rdmavt}: Correct ibv_devinfo max_mr value
IB/hfi1: Insure freeze_work work_struct is canceled on shutdown
IB/rdmavt: Fix alloc_qpn() WARN_ON()
RDMA/core: Fix panic when port_data isn't initialized
RDMA/uverbs: Pass udata on uverbs error unwind
RDMA/core: Clear out the udata before error unwind
RDMA/hns: Fix PD memory leak for internal allocation
RDMA/srp: Rename SRP sysfs name after IB device rename trigger
Pull arm64 fixes from Will Deacon:
"Another round of mostly-benign fixes, the exception being a boot crash
on SVE2-capable CPUs (although I don't know where you'd find such a
thing, so maybe it's benign too).
We're in the process of resolving some big-endian ptrace breakage, so
I'll probably have some more for you next week.
Summary:
- Fix boot crash on platforms with SVE2 due to missing register
encoding
- Fix architected timer accessors when CONFIG_OPTIMIZE_INLINING=y
- Move cpu_logical_map into smp.h for use by upcoming irqchip drivers
- Trivial typo fix in comment
- Disable some useless, noisy warnings from GCC 9"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Silence gcc warnings about arch ABI drift
ARM64: trivial: s/TIF_SECOMP/TIF_SECCOMP/ comment typo fix
arm64: arch_timer: mark functions as __always_inline
arm64: smp: Moved cpu_logical_map[] to smp.h
arm64: cpufeature: Fix missing ZFR0 in __read_sysreg_by_encoding()
When soc_init_dai_link() call at the beginning of snd_soc_instantiate_card
function fails soc_cleanup_card_resources() and then snd_soc_dapm_free()
gets called with an incompletely initialized card->dapm. In particular
card->dapm.card is NULL and it gets dereferenced in dapm_free_widgets().
Also dapm->list is invalid and there is an invalid pointer dereference
from list_del().
The function call stack (deferred probing) on Chromebook Snow where this
issue has shown up in today's -next is:
snd_soc_dapm_free
soc_cleanup_card_resources
snd_soc_instantiate_card
snd_soc_register_card
devm_snd_soc_register_card
snow_probe
In patch 70fc53734e "ASoC: core: move DAI pre-links initiation to
snd_soc_instantiate_card" there is an soc_cleanup_platform() call instead
of soc_cleanup_card_resources() as in current -next.
soc_cleanup_platform got renamed to soc_cleanup_legacy, then removed
in commit adb76b5b9c "ASoC: soc-core: remove legacy style dai_link".
It seems in merge conflict resolution the soc_cleanup_platform() call got
renamed to soc_cleanup_card_resources(), instead of being removed.
Correct this by removing an unnecessary soc_cleanup_card_resources() call.
Fixes: a8e992342c ("Merge branch 'asoc-5.2' into asoc-5.3")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Suggested-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
To print the pathname that will be used by shell in the current
environment, 'command -v' is a standardized way. [1]
'which' is also often used in scripts, but it is less portable.
When I worked on commit bd55f96fa9 ("kbuild: refactor cc-cross-prefix
implementation"), I was eager to use 'command -v' but it did not work.
(The reason is explained below.)
I kept 'which' as before but got rid of '> /dev/null 2>&1' as I
thought it was no longer needed. Sorry, I was wrong.
It works well on my Ubuntu machine, but Alexey Brodkin reports noisy
warnings on CentOS7 when 'which' fails to find the given command in
the PATH environment.
$ which foo
which: no foo in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin)
Given that behavior of 'which' depends on system (and it may not be
installed by default), I want to try 'command -v' once again.
The specification [1] clearly describes the behavior of 'command -v'
when the given command is not found:
Otherwise, no output shall be written and the exit status shall reflect
that the name was not found.
However, we need a little magic to use 'command -v' from Make.
$(shell ...) passes the argument to a subshell for execution, and
returns the standard output of the command.
Here is a trick. GNU Make may optimize this by executing the command
directly instead of forking a subshell, if no shell special characters
are found in the command and omitting the subshell will not change the
behavior.
In this case, no shell special character is used. So, Make will try
to run it directly. However, 'command' is a shell-builtin command,
then Make would fail to find it in the PATH environment:
$ make ARCH=m68k defconfig
make: command: Command not found
make: command: Command not found
make: command: Command not found
In fact, Make has a table of shell-builtin commands because it must
ask the shell to execute them.
Until recently, 'command' was missing in the table.
This issue was fixed by the following commit:
| commit 1af314465e5dfe3e8baa839a32a72e83c04f26ef
| Author: Paul Smith <psmith@gnu.org>
| Date: Sun Nov 12 18:10:28 2017 -0500
|
| * job.c: Add "command" as a known shell built-in.
|
| This is not a POSIX shell built-in but it's common in UNIX shells.
| Reported by Nick Bowler <nbowler@draconx.ca>.
Because the latest release is GNU Make 4.2.1 in 2016, this commit is
not included in any released versions. (But some distributions may
have back-ported it.)
We need to trick Make to spawn a subshell. There are various ways to
do so:
1) Use a shell special character '~' as dummy
$(shell : ~; command -v $(c)gcc)
2) Use a variable reference that always expands to the empty string
(suggested by David Laight)
$(shell command$${x:+} -v $(c)gcc)
3) Use redirect
$(shell command -v $(c)gcc 2>/dev/null)
I chose 3) to not confuse people. The stderr would not be polluted
anyway, but it will provide extra safety, and is easy to understand.
Tested on Make 3.81, 3.82, 4.0, 4.1, 4.2, 4.2.1
[1] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/command.html
Fixes: bd55f96fa9 ("kbuild: refactor cc-cross-prefix implementation")
Cc: linux-stable <stable@vger.kernel.org> # 5.1
Reported-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
mmu_notifier_unregister_no_release() is not a fence and the mmu_notifier
system will continue to reference hmm->mn until the srcu grace period
expires.
Resulting in use after free races like this:
CPU0 CPU1
__mmu_notifier_invalidate_range_start()
srcu_read_lock
hlist_for_each ()
// mn == hmm->mn
hmm_mirror_unregister()
hmm_put()
hmm_free()
mmu_notifier_unregister_no_release()
hlist_del_init_rcu(hmm-mn->list)
mn->ops->invalidate_range_start(mn, range);
mm_get_hmm()
mm->hmm = NULL;
kfree(hmm)
mutex_lock(&hmm->lock);
Use SRCU to kfree the hmm memory so that the notifiers can rely on hmm
existing. Get the now-safe hmm struct through container_of and directly
check kref_get_unless_zero to lock it against free.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Philip Yang <Philip.Yang@amd.com>
This patch adds an is_write_abort() wrapper and documents the detection
of the abort type on cache maintenance operations.
Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
[catalin.marinas@arm.com: only keep the is_write_abort() wrapper]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Adjust conditions in on_stack function. That fixes backchain unwinder
which was unable to read pt_regs at the very bottom of the stack and
hence couldn't follow stacks (e.g. from async stack to a task stack).
Fixes: 78c98f9074 ("s390/unwind: introduce stack unwind API")
Reported-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This patch removes support for range parameters of FITRIM ioctl when
trimming unallocated space on devices. This is necessary since ranges
passed from user space are generally interpreted as logical addresses,
whereas btrfs_trim_free_extents used to interpret them as device
physical extents. This could result in counter-intuitive behavior for
users so it's best to remove that support altogether.
Additionally, the existing range support had a bug where if an offset
was passed to FITRIM which overflows u64 e.g. -1 (parsed as u64
18446744073709551615) then wrong data was fed into btrfs_issue_discard,
which in turn leads to wrap-around when aligning the passed range and
results in wrong regions being discarded which leads to data corruption.
Fixes: c2d1b3aae3 ("btrfs: Honour FITRIM range constraints during free space trim")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
When fixing the skb leak introduced by the conversion to rbtree, I
forgot about the special case of duplicate fragments. The condition
under the 'insert_error' label isn't effective anymore as
nf_ct_frg6_gather() doesn't override the returned value anymore. So
duplicate fragments now get NF_DROP verdict.
To accept duplicate fragments again, handle them specially as soon as
inet_frag_queue_insert() reports them. Return -EINPROGRESS which will
translate to NF_STOLEN verdict, like any accepted fragment. However,
such packets don't carry any new information and aren't queued, so we
just drop them immediately.
Fixes: a0d56cb911 ("netfilter: ipv6: nf_defrag: fix leakage of unqueued fragments")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Add COMPILE_TEST support to pvr2fb driver for better compile
testing coverage.
While at it:
- mark pvr2fb_interrupt() and pvr2fb_common_init() with
__maybe_unused tag (to silence build warnings when
!SH_DREAMCAST)
- convert mmio_base in struct pvr2fb_par to 'void __iomem *'
from 'unsigned long' (needed to silence build warnings on
ARM).
- split pvr2_get_param() on pvr2_get_param_name() and
pvr2_get_param_val() (needed to silence build warnings on
x86).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This is a PCI driver and FB_CYBER2000 depends on PCI in Kconfig so
there is no need to check for PCI inside the driver code.
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Add COMPILE_TEST support to gbefb driver for better compile
testing coverage.
While at it convert bogus udelay() calls to mdelay() (needed to
build driver on ARM) and remove dead x86 specific code.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Add COMPILE_TEST support to atmel_lcdfb driver for better compile
testing coverage.
While at it fix improper use of UL (to silence build warnings on
x86_64).
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Virtual addresses return from dma(m)_alloc_attrs are opaque in what
backs then, and drivers must not poke into them. Similarly caching
modes are not supposed to be directly set by the driver. Switch the
driver to use the generic DMA API mmap helper to avoid these problems.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
There is a DRM version of the mxsfb driver for quite some time
at drivers/gpu/drm/mxsfb/, so there is no need to keep maintaining
the fbdev version any longer.
Remove the fbdev mxsfb driver in favour of the DRM version.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Add basic support for i3c bus.
This is a simple implementation that only give support
for SDR Read and Write commands.
Signed-off-by: Vitor Soares <vitor.soares@synopsys.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
RTC driver was converted to OF driver long time ago. The MODULE_ALIAS
macro has no effect for the OF drivers since the alias is overridden by
the drivers core to follow the OF naming convention of the driver's alias,
which is based on the device-tree matching name.
$ cat /sys/devices/soc0/7000e000.rtc/modalias
of:NrtcT(null)Cnvidia,tegra20-rtc
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This patch adds sidetone support via one of the 3 RX Mix paths
using IIR1 and IIR2.
IIR1 can be feed by any Decimators or RX paths, and IIRx can also be
looped back to RX mixers to provide sidetone functionality.
Two IIR filters are used for Side tone equalization and each filter
is 5 stage.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The filename matches mtk-uart-apdma.c.
So using "mtk-uart-apdma.txt" should be better.
And add some property.
Signed-off-by: Long Cheng <long.cheng@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Add 8250 UART APDMA to support MediaTek UART. If MediaTek UART is
enabled by SERIAL_8250_MT6577, and we can enable this driver to offload
the UART device moving bytes.
Signed-off-by: Long Cheng <long.cheng@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The config value used in the if was changed in
b433dce056, but the comment on the
corresponding end was not changed.
Signed-off-by: Odin Ugedal <odin@ugedal.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Currently, the clock identifiers are limited to 255. To support future
SoCs, this muse be extended to 32 bits, which should provide way more
than enough space. Basic support for extending the clock API is going
to be implemented in the firmware driver, but there are some minor
changes that need to be done on the clock driver side first.
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Probing all the available clocks from the PM firmware takes quite a lot
of time, increasing boot time. Instead, implement functionality that
parses only the used clocks from DT, and registers these to clock core.
This way, the boot time is greatly improved.
Additionally, provide a Kconfig option for parsing all the clocks from
firmware, if someone requires this. It is mostly useful as a debugging
functionality if we want to inspect the whole clock tree.
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
