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Only the mount namespace code that implements mount(2) should be using the
MS_* flags. Suppress them inside the kernel unless uapi/linux/mount.h is
included.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: David Howells <dhowells@redhat.com>
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Jakub Kicinski says:
====================
This is a v2 of the patch set to teach the verifier about BPF_JSET
instruction. There is also a number of tests include for both
basic functioning of the instruction and the verifier logic.
The NFP JIT handling of JSET is tweaked. Last patch adds missing
file to gitignore.
Reposting part of previous series without the dead code elimination.
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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commit 435f90a338ae ("selftests/bpf: add a test case for sock_ops
perf-event notification") missed adding new test to gitignore.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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The top word of the constant can only have bits set if sign
extension set it to all-1, therefore we don't really have to
mask the top half of the register. We can just OR it into
the result as is.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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The verifier will now understand the JSET instruction, so don't
mark the dead branch in the JIT as noop. We won't generate any
code, anyway.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Reorder the calls to check_max_stack_depth() and sanitize_dead_code()
to separate functions which can rewrite instructions from pure checks.
No functional changes.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Validate that the verifier reasons correctly about the bounds
and removes dead code based on results of JSET instruction.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Some JITs (nfp) try to optimize code on their own. It could make
sense in case of BPF_JSET instruction which is currently not interpreted
by the verifier, meaning for instance that dead could would not be
detected if it was under BPF_JSET branch.
Teach the verifier basics of BPF_JSET, JIT optimizations will be
removed shortly.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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We seem to have no JSET instruction test, and LLVM does not
generate it at all, so let's add a simple hand-coded test
to make sure JIT implementations are correct.
v2:
- extend test_verifier to handle multiple inputs and
add the sample there (Daniel)
- add a sign extension case
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Michael Chan says:
====================
bnxt_en: Update for net-next.
Three main changes in this series, besides the usual firmware spec
update:
1. Add support for a new firmware communication channel direct to the
firmware processor that handles flow offloads. This speeds up
flow offload operations.
2. Use 64-bit internal flow handles to increase the number of flows
that can be offloaded.
3. Add level-2 context memory paging so that we can configure more
context memory for RDMA on the 57500 chips. Allocate more context
memory if RDMA is enabled on the 57500 chips.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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For a little better performance on faster machines and faster link
speeds.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Older firmware only supports 16-bit flow handle, because of which the
number of flows that can be offloaded can’t scale beyond a point.
Newer firmware supports 64-bit flow handle enabling the host to scale
upto millions of flows. With the new 64-bit flow handle support, driver
has to query flow stats in a different way compared to the older approach.
This patch adds support for 64-bit flow handle and new way to query
flow stats.
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If RDMA is supported on the 57500 chip, increase context memory
allocations for the resources used by RDMA.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the new functions bnxt_alloc_ctx_pg_tbls()/bnxt_free_ctx_pg_tbls()
to allocate and free pages for context memory. The new functions
will handle the different levels of paging support and allocate/free
the pages accordingly using the existing functions.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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To support level 2 context page memory structures, enhance the
bnxt_ring_mem_info structure with a "depth" field to specify the page
level and add a flag to specify using full pages for L1 and L2 page
tables. This is needed to support RDMA functionality on 57500 chips
since RDMA requires more context memory.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Earlier, some of the firmware commands (ex: CFA_FLOW_*) which are processed
by KONG processor were sent to the CHIMP processor from the host. This
approach was taken as there was no direct message channel to KONG.
CHIMP in turn used to send them to KONG. Newer firmware supports a new
message channel which the host can send messages directly to the KONG
processor.
This patch adds support for required changes needed in the driver
to support direct KONG message channel. This speeds up flow related
messages sent to the firmware for CLS_FLOWER offload.
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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These routines will be enhanced in the subsequent patch to
return the 2nd firmware comm. channel's hwrm response address &
sequence id respectively.
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Typecast hwrm_cmd_resp_addr to (u8 *) from (void *) before doing
arithmetic.
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In preparation for adding a 2nd communication channel to firmware.
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set hwrm_intr_seq_id value to its inverted value instead of
HWRM_SEQ_INVALID, when an hwrm completion of type
CMPL_BASE_TYPE_HWRM_DONE is received. This will enable us to use
the complete 16-bit sequence ID space.
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The major changes are in the flow offload firmware APIs.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:
====================
pull request (net-next): ipsec-next 2018-12-20
Two last patches for this release cycle:
1) Remove an unused variable in xfrm_policy_lookup_bytype().
From YueHaibing.
2) Fix possible infinite loop in __xfrm6_tunnel_alloc_spi().
Also from YueHaibing.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt
Samsung DTS ARM changes for v4.21, part 2
1. Add missing CPUs in cooling maps for Odroid X2 (missed in previous
round of fixups).
2. Fix clock configuration in audio subsystem on Odroid XU3/XU4.
* tag 'samsung-dt-4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: dts: exynos: Specify I2S assigned clocks in proper node
ARM: dts: exynos: Add missing CPUs in cooling maps for Odroid X2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt
Allwinner arm64 DT changes for 4.21 - round 2
Bluetooth using a Broadcom (now Cypress) chip connected to an UART on
the Bananapi M64 is enabled using serdev and the updated bindings for
Broadcom Bluetooth. The patch series had been sitting on the mailing
lists for a month, and the driver bits were just merged on 2018/12/19.
* tag 'sunxi-dt64-for-4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm64: dts: allwinner: a64: bananapi-m64: Add Bluetooth device node
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt
Allwinner DT changes for 4.21 - round 2
This is a small pull request for some lingering things that didn't make
the first round of patches.
First, the new suniv device tree included device tree headers for the
clock and reset indices. These header filers are going in through the
clock tree. Thus with the dt and core branches in arm-soc alone, it
doesn't build. One fix is included to remove the #include statements.
The defined macros aren't used yet as they were properly removed during
the review phase.
Second, Bluetooth using Broadcom (now Cypress) chips connected to UARTs
on various boards is enabled using serdev and the updated bindings for
Broadcom Bluetooth. The patch series had been sitting on the mailing
lists for a month, and the driver bits were just merged on 2018/12/19.
* tag 'sunxi-dt-for-4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
ARM: dts: sunxi: Enable Broadcom-based Bluetooth for multiple boards
ARM: dts: suniv: Fix improper bindings include patch
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt
Freescale QSPI device tree cleanup for 4.21:
- It contains a series from Schrempf Frieder that cleans up FSL QSPI
device tree nodes. The current device trees are broken because they
use an inconsistent scheme for assigning the reg properties. It
becomes a problem with ongoing QSPI driver under SPI framework. So
the cleanup is a preparation for new driver landing in the next
cycle.
* tag 'imx-qspi-dt-clean' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller
arm64: dts: Remove unused properties from FSL QSPI driver nodes
ARM: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller
ARM: dts: imx6sx-sdb: Fix the reg properties for the FSL QSPI nodes
ARM: dts: Remove unused properties from FSL QSPI driver nodes
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Get rid of some unneeded structural elements around the new (to RST)
pathname-lookup document.
Signed-off-by: NeilBrown <neilb@suse.com>
[ jc: grabbed from email and changelog added ]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The name of the struct is configfs_bin_attribute instead of
configfs_attribute
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Fixes: 03607ace807b ("configfs: implement binary attributes")
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The clock and reset bindings are going through different trees, and while
the patch doesn't contain any value defined in that header, it still
includes those files and result in a build breakage when building the DT
without the matching clock and reset patches applied.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Mediatek Preloader is a proprietary embedded boot loader for loading
Little Kernel and Linux into device DRAM.
This boot loader also handle firmware update. Mediatek Preloader will be
enumerated as a virtual COM port when the device is connected to Windows
or Linux OS via CDC-ACM class driver. When the USB enumeration has been
done, Mediatek Preloader will send out handshake command "READY" to PC
actively instead of waiting command from the download tool.
Since Linux 4.12, the commit "tty: reset termios state on device
registration" (93857edd9829e144acb6c7e72d593f6e01aead66) causes Mediatek
Preloader receiving some abnoraml command like "READYXX" as it sent.
This will be recognized as an incorrect response. The behavior change
also causes the download handshake fail. This change only affects
subsequent connects if the reconnected device happens to get the same minor
number.
By disabling the ECHO termios flag could avoid this problem. However, it
cannot be done by user space configuration when download tool open
/dev/ttyACM0. This is because the device running Mediatek Preloader will
send handshake command "READY" immediately once the CDC-ACM driver is
ready.
This patch wants to fix above problem by introducing "DISABLE_ECHO"
property in driver_info. When Mediatek Preloader is connected, the
CDC-ACM driver could disable ECHO flag in termios to avoid the problem.
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Cc: stable@vger.kernel.org
Reviewed-by: Johan Hovold <johan@kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux into next/dt
AM65x DT changes for 4.21. Includes:
- Pinctrl support
- I2C support
- ECAP PWM support
- Power domain handling for UARTs
- McSPI support
* tag 'am654-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux:
arm64: dts: ti: k3-am654: Enable main domain McSPI0
arm64: dts: ti: k3-am654: Add McSPI DT nodes
arm64: dts: ti: k3-am654: Populate power-domain property for UART nodes
arm64: dts: ti: k3-am654-base-board: Enable ECAP PWM
arm64: dts: ti: k3-am65-main: Add ECAP PWM node
arm64: dts: ti: k3-am654-base-board: Add I2C nodes
arm64: dts: ti: am654-base-board: Add pinmux for main uart0
arm64: dts: ti: k3-am65: Add pinctrl regions
dt-bindings: pinctrl: k3: Introduce pinmux definitions
arm64: dts: ti: k3-am654: Fix wakeup_uart reg address
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k fix from Geert Uytterhoeven:
"Fix memblock-related crashes"
* tag 'm68k-for-v4.20-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Fix memblock-related crashes
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Add interconnect target module dts data for omaps for v4.21
This big set of changes adds SoC specific l4 interconnect target module
device tree data for am335x, am437x, omap5 and dra7 SoCs. We also move
existing devices to the right location in the l4 interconnect hierarcy.
This is similar to what we've already done for omap4 l4 interconnects
earlier, and follows what is documented in the ti-sysc driver dts binding
in Documentation/devicetree/bindings/bus/ti-sysc.txt.
These changes will essentially replace the struct ti_sysc and clock
entries in the arch/arm/mach-omap2/omap_hwmod_*_data.c files. Then a few
merge windows later, we can start dropping the built-in platform data
from the omap_hwmod_*_data.c files in favor of the device tree data only.
For now, we verify the device tree data module data against the built-in
data and warn about changes to prevent regressions.
With the device tree data, we are also probing devices with the ti-sysc
interconnect target module instead of omap_device. This fixes up the
handling for multiple device instances in a single interconnect target
module that has caused trouble earlier. A custom wrapper driver has been
needed earlier for such cases.
And as the device tree data is organized by the l4 interconnect instances,
we will be able to use genpd later on. This is because each interconnect
instance is also often also a single power domain.
This series of changes has been brewing for several months now. I did not
want to send a pull request earlier as people were still seeing device
specific issues until recently though. However, it turned out that all the
issues were quite trivial to fix. I had missed adding device tree ranges
for the l3 data port used on some devices, and I had missed converting the
device addresses for a few devices. And some devices like needed fixes for
deferred probe handling such as the EHCI PHY for built-in case on omap5.
Anyways, in case of trouble, we can easily just revert changes for a
single device if needed.
* tag 'omap-for-v4.21/dt-ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: Cosmetic fix for omap5 USB node names
ARM: dts: Fix wrong address for omap5 sata phy
ARM: dts: Add missing ranges for dra7 mcasp l3 ports
ARM: dts: Fix ranges for am335x epwmss
ARM: dts: Fix hsi gdd range for omap4
ARM: dts: Add am335x mcasp with l3 data port ranges
ARM: dts: Add missing ranges for am437x mcasp l3 ports
ARM: dts: dra7: Move the ti,no-idle quirk on proper gmac node
ARM: dts: Revert am335x mcasp ti-sysc changes
ARM: dts: omap5: Add l4 interconnect hierarchy and ti-sysc data
ARM: dts: Use dra7 mcasp compatible for mcasp instances
ARM: dts: dra7: Move l4 child devices to probe them with ti-sysc
ARM: dts: dra7: Add l4 interconnect hierarchy and ti-sysc data
ARM: dts: am335x: Move l4 child devices to probe them with ti-sysc
ARM: dts: am335x: Add l4 interconnect hierarchy and ti-sysc data
ARM: dts: am437x: Move l4 child devices to probe them with ti-sysc
ARM: dts: am437x: Add l4 interconnect hierarchy and ti-sysc data
ARM: dts: dra7: convert to use new clkctrl layout
ARM: dts: am43xx: convert to use new clkctrl layout
ARM: dts: am33xx: convert to use new clkctrl layout
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Several functions in mm/slab_common.c have kernel-doc comments, it makes
perfect sense to link them to the MM API reference.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The remove_memory_block() function was renamed to in commit
cc292b0b4302 ("drivers/base/memory.c: rename remove_memory_block() to
remove_memory_section()").
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add the description for kmem_cache_create, fixup the return value paragraph
and make both kmem_cache_create and add the second '*' to the comment
opening.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fix from Masahiro Yamada:
"Fix false positive warning/error about missing library for objtool"
* tag 'kbuild-fixes-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: fix false positive warning/error about missing libelf
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next/dt
arm: dts: zynq: DT changes for v5.0
- Fix mmc node name
* tag 'zynq-dt-for-v5.0' of https://github.com/Xilinx/linux-xlnx:
ARM: dts: Use mmc@ instead sdhci@
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Currently the cmd.read_write setting is not initialized so it contains
garbage from the stack. Fix this by setting it to 0 to indicate a
read is required.
Detected by CoverityScan, CID#1357925 ("Uninitialized scalar variable")
Fixes: c5c77ba18ea6 ("staging: wilc1000: Add SDIO/SPI 802.11 driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Issue reported by checkpatch.pl.
Signed-off-by: Jona Crasselt <jona.crasselt@fau.de>
Signed-off-by: Felix Windsheimer <felix.windsheimer@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Issue reported by checkpatch.pl.
Signed-off-by: Jona Crasselt <jona.crasselt@fau.de>
Signed-off-by: Felix Windsheimer <felix.windsheimer@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Issue reported by checkpatch.pl.
Signed-off-by: Jona Crasselt <jona.crasselt@fau.de>
Signed-off-by: Felix Windsheimer <felix.windsheimer@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Issue reported by checkpatch.pl.
Signed-off-by: Jona Crasselt <jona.crasselt@fau.de>
Signed-off-by: Felix Windsheimer <felix.windsheimer@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix some comment-related issues reported by checkpatch.pl:
- Block comments use * on subsequent lines
- Block comments use a trailing */ on a separate line
Signed-off-by: Jona Crasselt <jona.crasselt@fau.de>
Signed-off-by: Felix Windsheimer <felix.windsheimer@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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next/dt
arm64: dts: zynqmp: DT changes for v5.0
- Fix node names
- Fix wakeup-source
- Wire ddrc
- Label gpio controller (PS gpio)
* tag 'zynqmp-dt-for-v5.0' of https://github.com/Xilinx/linux-xlnx:
arm64: dts: zynqmp: Fix node names which contain "_"
arm64: dts: zynqmp: Add missing gpio-controller to ps gpio
arm64: dts: zynqmp: Add DDRC node
arm64: dts: zynqmp: replace gpio-key,wakeup with wakeup-source property
arm64: dts: zynqmp: Use mmc@ instead sdhci@
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are three tiny last-minute driver fixes for 4.20-rc8 that resolve
some reported issues, and one MAINTAINERS file update.
All of them are related to the hyper-v subsystem, it seems people are
actually testing and using it now, which is nice to see :)
The fixes are:
- uio_hv_generic: fix for opening multiple times
- Remove PCI dependancy on hyperv drivers
- return proper error code for an unopened channel.
And Sasha has signed up to help out with the hyperv maintainership.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.20-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Drivers: hv: vmbus: Return -EINVAL for the sys files for unopened channels
x86, hyperv: remove PCI dependency
MAINTAINERS: Patch monkey for the Hyper-V code
uio_hv_generic: set callbacks on open
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