Commit 2b3e88ea65 ("net: phy: improve phy state checking")
added checks for phylib usage, and this triggers with OCTEON ethernet
and results in broken networking.
Fix by replacing phy_start_aneg() with phy_start().
Fixes: 2b3e88ea65 ("net: phy: improve phy state checking")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is a little window during disconnection flow
when read cb is moved between lists and may be not freed.
Remove moving read cbs explicitly during flash fixes this memory
leak.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We currently adhere to the reserved devices limit when creating new
binderfs devices in binderfs instances not located in the inital ipc
namespace. But it is still possible to rob the host instances of their 4
reserved devices by creating the maximum allowed number of devices in a
single binderfs instance located in a non-initial ipc namespace and then
mounting 4 separate binderfs instances in non-initial ipc namespaces. That
happens because the limit is currently not respected for the creation of
the initial binder-control device node. Block this nonsense by performing
the same check in binderfs_binder_ctl_create() that we perform in
binderfs_binder_device_create().
Fixes: 36bdf3cae0 ("binderfs: reserve devices for initial mount")
Signed-off-by: Christian Brauner <christian@brauner.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds the promised selftest for binderfs. It will verify the following
things:
- binderfs mounting works
- binder device allocation works
- performing a binder ioctl() request through a binderfs device works
- binder device removal works
- binder-control removal fails
- binderfs unmounting works
The tests are performed both privileged and unprivileged. The latter
verifies that binderfs behaves correctly in user namespaces.
Cc: Todd Kjos <tkjos@google.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Calling platform-specific code unconditionally blows up when running
an ARCH_MULTIPLATFORM kernel on a different platform. Don't do it.
Reported-by: Paolo Pisati <p.pisati@gmail.com>
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: stable@vger.kernel.org # v4.8+
Fixes: a30eceb7a5 ("ARM: tango: add Suspend-to-RAM support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Third Round of Renesas ARM Based SoC Fixes for v5.0
* Convert to new LVDS DT bindings fixing a regression introduced in v4.17
* tag 'renesas-fixes3-for-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: dts: r8a7743: Convert to new LVDS DT bindings
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Allwinner Fixes for 5.0
A couple of device tree fixes for the 5.0 cycle:
- Add missing clock-output-names for the osc24M clock on sun6i/A31
The Linux clock driver uses the device node as the clock name if
the property is missing. The node name was changed in 5.0-rc1,
breaking a subtle dependency in the sunxi-ng clock driver, and
renders Linux unable to completely boot up.
- Add alias for Ethernet controller on Beelink X2
This allows the bootloader to assign a deterministically generated
MAC address to it.
- Add property to enable USB VBUS regulator on OrangePi Win
The board had defined the constraints for the regulator, but was
missing the property to actually enable it.
* tag 'sunxi-fixes-for-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm64: dts: allwinner: a64: Fix USB OTG regulator
ARM: dts: sun8i: h3: Add ethernet0 alias to Beelink X2
ARM: dts: sun6i: Add clock-output-names to osc24M clock
arm64: dts: allwinner: a64: Fix the video engine compatible
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Amlogic fixes for v5.0-rc, round 2
- several fixups for the GPIO cd-inverted change
- IRQ trigger fixes for MAC IRQ
* tag 'amlogic-fixes-2.1' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
arm64: dts: meson: Fix mmc cd-gpios polarity
ARM: dts: meson8m2: mxiii-plus: mark the SD card detection GPIO active-low
ARM: dts: meson8b: ec100: mark the SD card detection GPIO active-low
ARM: dts: meson8b: odroidc1: mark the SD card detection GPIO active-low
arm: dts: meson: Fix IRQ trigger type for macirq
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The device/driver model clearly mandates that bus driver that discover
and allocate the device must set the release callback. This callback
will be used to free the device after all references have gone away.
scmi bus driver is missing the obvious callback which will result in
the following warning if the device is unregistered:
Device 'scmi_dev.1' does not have a release() function, it is broken and
must be fixed. See Documentation/kobject.txt.
WARNING at drivers/base/core.c:922 device_release+0x8c/0xa0
Hardware name: ARM LTD Juno Development Platform BIOS EDK II Jan 21 2019
Workqueue: events deferred_probe_work_func
pstate: 60000005 (nZCv daif -PAN -UAO)
pc : device_release+0x8c/0xa0
lr : device_release+0x8c/0xa0
Call trace:
device_release+0x8c/0xa0
kobject_put+0x8c/0x208
device_unregister+0x30/0x78
scmi_device_destroy+0x28/0x50
scmi_probe+0x354/0x5b0
platform_drv_probe+0x58/0xa8
really_probe+0x2c4/0x3e8
driver_probe_device+0x12c/0x148
__device_attach_driver+0xac/0x150
bus_for_each_drv+0x78/0xd8
__device_attach+0xe0/0x168
device_initial_probe+0x24/0x30
bus_probe_device+0xa0/0xa8
deferred_probe_work_func+0x8c/0xe0
process_one_work+0x1f0/0x478
worker_thread+0x22c/0x450
kthread+0x134/0x138
ret_from_fork+0x10/0x1c
---[ end trace 420bdb7f6af50937 ]---
Fix the issue by providing scmi_device_release callback. We have
everything required for device release already in scmi_device_destroy,
so we just need to move freeing of the device to scmi_device_release.
Fixes: 933c504424 ("firmware: arm_scmi: add scmi protocol bus to enumerate protocol devices")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: stable@vger.kernel.org # 4.17+
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Booting 4.20 on a TheCUS N2100 results in a kernel oops while probing
PCI, due to n2100_pci_map_irq() having been discarded during boot.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Cc: stable@vger.kernel.org # 2.6.18+
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Device tree fixes for omaps for v5.0-rc cycle
This series of dts fixes for omap devices fixes several device specific
regressions:
- The onenand timings for n950/n9 have been wrong for a while since
we moved to dts based timings
- A typo for the cpcap pmic is now producing erors during boot as the
level should be 0 for unconfigurable triggering instead of 1
- Changes for ti-sysc for omap5 left uart3 with debug flags that should
not be set
- Fix a new dtc warning started showing up for omap3-gta04 grap_port
- With the generic MMC card detection code we need to fix the gpio
in dts for n900 and am335x-shc
* tag 'omap-for-v5.0/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: am335x-shc.dts: fix wrong cd pin level
ARM: dts: n900: fix mmc1 card detect gpio polarity
ARM: dts: omap3-gta04: Fix graph_port warning
ARM: dts: Remove unnecessary idle flags for omap5 uart3
ARM: dts: omap4-droid4: Fix typo in cpcap IRQ flags
ARM: OMAP: dts: N950/N9: fix onenand timings
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This fixes a long standing typo in device-tree for DA850 in interrupt
number for timer. It did not affect us so far because we use non-DT
timer driver within mach-davinci. This was caught while migrating to
clocksource driver.
* tag 'davinci-fixes-for-v5.0-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: dts: da850: fix interrupt numbers for clocksource
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Qualcomm ARM64 Fixes for 5.0-rc3
* Fix irq controller compatible for the MSM8996 platforms
* tag 'qcom-fixes-for-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
arm64: dts: add msm8996 compatible to gicv3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Second Round of Renesas ARM Based SoC Fixes for v5.0
Enable DMA for SCIF2 on R-Car M3-W (r8a7796) and M3-n (r8a77965), and
(RZ/G2M) r8a774a1 SoCs.
This is was omitted from patches enabling DMA for other SCIF devices on the
same SoCs due to missing documentation. However, it is regarded as a fix
as arguably those patches claim to add this feature.
Per-SoC patches are provided to ease backporting of this fix as the kernel
version to be fixed is different for each SoC.
* tag 'renesas-fixes2-for-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
arm64: dts: renesas: r8a77965: Enable DMA for SCIF2
arm64: dts: renesas: r8a7796: Enable DMA for SCIF2
arm64: dts: renesas: r8a774a1: Enable DMA for SCIF2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This is the pxa fixes set for v4.20 cycle:
- only a single devm allocated pointer free fix, which was never
triggered runtime but code analysis found.
* tag 'pxa-fixes-5.0' of https://github.com/rjarzmik/linux:
ARM: pxa: ssp: unneeded to free devm_ allocated data
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
i.MX fixes for 5.0, 2nd round:
It contains a single fix for i.MX8MQ clock numbers, removing the
duplicate use of 232 and numbering the clocks consecutively.
* tag 'imx-fixes-5.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
dt-bindings: imx8mq: Number clocks consecutively
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
i.MX fixes for 5.0:
- Fix spi_bus_bridge DTC warning by correcting '#address-cells' of
dspi3 node on vf610-bk4 board, as it's being used a SPI slave
controller there.
- Replace deprecated gpio-key,wakeup property with wakeup-source for
board imx6q-pistachio and imx6sll-evk, into which the deprecated
property sneaked during the merge window.
- Correct the backward compatible for i.MX6SX GPT device, as it's
actually compatible with i.MX6DL GPT rather than i.MX31 one.
* tag 'imx-fixes-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6sx: correct backward compatible of gpt
ARM: dts: imx: replace gpio-key,wakeup with wakeup-source property
ARM: dts: vf610-bk4: fix incorrect #address-cells for dspi3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Since IRQs might be muxed on some parts, we need to pay attention when we
are freeing them.
Otherwise we get the ugly WARNING "Trying to free already-free IRQ 20".
Fixes: 628c534ae7 ("serial: sh-sci: Improve support for separate TEI and DRI interrupts")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As has been reported the National Instruments serial cards have broken
PCI class.
The commit 7d8905d064
("serial: 8250_pci: Enable device after we check black list")
made the PCI class check mandatory for the case when device is listed in
a quirk list.
Make PCI class test non fatal to allow broken card be enumerated.
Fixes: 7d8905d064 ("serial: 8250_pci: Enable device after we check black list")
Cc: stable <stable@vger.kernel.org>
Reported-by: Guan Yung Tseng <guan.yung.tseng@ni.com>
Tested-by: Guan Yung Tseng <guan.yung.tseng@ni.com>
Tested-by: KHUENY.Gerhard <Gerhard.KHUENY@bachmann.info>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is a potential NULL pointer dereference in case devm_kzalloc()
fails and returns NULL.
Fix this by adding a NULL check on data->dma
This bug was detected with the help of Coccinelle.
Fixes: 85b5c1dd04 ("serial: 8250-mtk: add uart DMA support")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Yonghong Song says:
====================
The current btf implementation disallows the typedef of
a func_proto type. This actually is allowed per C standard.
This patch fixed btf verification to permit such types.
Patch #1 fixed the kernel side and Patch #2 fixed
the tools test_btf test.
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Fixed one test_btf raw test such that typedef func_proto
is permitted now.
Fixes: 78a2540e89 ("tools/bpf: Add tests for BTF_KIND_FUNC_PROTO and BTF_KIND_FUNC")
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Current implementation does not allow typedef func_proto.
But it is actually allowed.
-bash-4.4$ cat t.c
typedef int (f) (int);
f *g;
-bash-4.4$ clang -O2 -g -c -target bpf t.c -Xclang -target-feature -Xclang +dwarfris
-bash-4.4$ pahole -JV t.o
File t.o:
[1] PTR (anon) type_id=2
[2] TYPEDEF f type_id=3
[3] FUNC_PROTO (anon) return=4 args=(4 (anon))
[4] INT int size=4 bit_offset=0 nr_bits=32 encoding=SIGNED
-bash-4.4$
This patch related btf verifier to allow such (typedef func_proto)
patterns.
Fixes: 2667a2626f ("bpf: btf: Add BTF_KIND_FUNC and BTF_KIND_FUNC_PROTO")
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Pull networking fixes from David Miller:
1) Need to save away the IV across tls async operations, from Dave
Watson.
2) Upon successful packet processing, we should liberate the SKB with
dev_consume_skb{_irq}(). From Yang Wei.
3) Only apply RX hang workaround on effected macb chips, from Harini
Katakam.
4) Dummy netdev need a proper namespace assigned to them, from Josh
Elsasser.
5) Some paths of nft_compat run lockless now, and thus we need to use a
proper refcnt_t. From Florian Westphal.
6) Avoid deadlock in mlx5 by doing IRQ locking, from Moni Shoua.
7) netrom does not refcount sockets properly wrt. timers, fix that by
using the sock timer API. From Cong Wang.
8) Fix locking of inexact inserts of xfrm policies, from Florian
Westphal.
9) Missing xfrm hash generation bump, also from Florian.
10) Missing of_node_put() in hns driver, from Yonglong Liu.
11) Fix DN_IFREQ_SIZE, from Johannes Berg.
12) ip6mr notifier is invoked during traversal of wrong table, from Nir
Dotan.
13) TX promisc settings not performed correctly in qed, from Manish
Chopra.
14) Fix OOB access in vhost, from Jason Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
MAINTAINERS: Add entry for XDP (eXpress Data Path)
net: set default network namespace in init_dummy_netdev()
net: b44: replace dev_kfree_skb_xxx by dev_consume_skb_xxx for drop profiles
net: caif: call dev_consume_skb_any when skb xmit done
net: 8139cp: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
net: macb: Apply RXUBR workaround only to versions with errata
net: ti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
net: apple: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
net: amd8111e: replace dev_kfree_skb_irq by dev_consume_skb_irq
net: alteon: replace dev_kfree_skb_irq by dev_consume_skb_irq
net: tls: Fix deadlock in free_resources tx
net: tls: Save iv in tls_rec for async crypto requests
vhost: fix OOB in get_rx_bufs()
qed: Fix stack out of bounds bug
qed: Fix system crash in ll2 xmit
qed: Fix VF probe failure while FLR
qed: Fix LACP pdu drops for VFs
qed: Fix bug in tx promiscuous mode settings
net: i825xx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
netfilter: ipt_CLUSTERIP: fix warning unused variable cn
...
When doing reads beyound the end of a file the server returns
error STATUS_END_OF_FILE error which is mapped to -ENODATA.
Currently we report it as a failure which confuses read stats.
Change it to not consider -ENODATA as failure for stat purposes.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Currently we log success once we send an async IO request to
the server. Instead we need to analyse a response and then log
success or failure for a particular command. Also fix argument
list for read logging.
Cc: <stable@vger.kernel.org> # 4.18
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Allocation of a page array for non-cached IO was separated from
allocation of rdata and wdata structures and this introduced memory
leaks and a possible null pointer dereference. This patch fixes
these problems.
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
minus the various headers and blobs that will be part of the reply.
or else we might trigger a session reconnect.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
show_ldttss() shifts desc.base2 by 24 bit, but base2 is 8 bits of a
bitfield in a u16.
Due to the really great idea of integer promotion in C99 base2 is promoted
to an int, because that's the standard defined behaviour when all values
which can be represented by base2 fit into an int.
Now if bit 7 is set in desc.base2 the result of the shift left by 24 makes
the resulting integer negative and the following conversion to unsigned
long legitmately sign extends first causing the upper bits 32 bits to be
set in the result.
Fix this by casting desc.base2 to unsigned long before the shift.
Detected by CoverityScan, CID#1475635 ("Unintended sign extension")
[ tglx: Reworded the changelog a bit as I actually had to lookup
the standard (again) to decode the original one. ]
Fixes: a1a371c468 ("x86/fault: Decode page fault OOPSes better")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: kernel-janitors@vger.kernel.org
Link: https://lkml.kernel.org/r/20181222191116.21831-1-colin.king@canonical.com
In some old AMD KVM implementation, guest's EFER.LME bit is cleared by KVM
when the hypervsior detects that the guest sets CR0.PG to 0. This causes
the guest OS to reboot when it tries to return from 32-bit trampoline code
because the CPU is in incorrect state: CR4.PAE=1, CR0.PG=1, CS.L=1, but
EFER.LME=0. As a precaution, set EFER.LME=1 as part of long mode
activation procedure. This extra step won't cause any harm when Linux is
booted on a bare-metal machine.
Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: bp@alien8.de
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/20190104054411.12489-1-wei@redhat.com
When an error happens, debugfs should return an error pointer value, not
NULL. This will prevent the totally theoretical error where a debugfs
call fails due to lack of memory, returning NULL, and that dentry value
is then passed to another debugfs call, which would end up succeeding,
creating a file at the root of the debugfs tree, but would then be
impossible to remove (because you can not remove the directory NULL).
So, to make everyone happy, always return errors, this makes the users
of debugfs much simpler (they do not have to ever check the return
value), and everyone can rest easy.
Reported-by: Gary R Hook <ghook@amd.com>
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reported-by: Masami Hiramatsu <mhiramat@kernel.org>
Reported-by: Michal Hocko <mhocko@kernel.org>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reported-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When generating vdso-o32.lds & vdso-n32.lds for use with programs
running as compat ABIs under 64b kernels, we previously haven't included
the compiler flags that are supposedly common to all ABIs - ie. those in
the ccflags-vdso variable.
This is problematic in cases where we need to provide the -m%-float flag
in order to ensure that we don't attempt to use a floating point ABI
that's incompatible with the target CPU & ABI. For example a toolchain
using current gcc trunk configured --with-fp-32=xx fails to build a
64r6el_defconfig kernel with the following error:
cc1: error: '-march=mips1' requires '-mfp32'
make[2]: *** [arch/mips/vdso/Makefile:135: arch/mips/vdso/vdso-o32.lds] Error 1
Include $(ccflags-vdso) for the compat VDSO .lds builds, just as it is
included for the native VDSO .lds & when compiling objects for the
compat VDSOs. This ensures we consistently provide the -msoft-float flag
amongst others, avoiding the problem by ensuring we're agnostic to the
toolchain defaults.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: ebb5e78cc6 ("MIPS: Initial implementation of a VDSO")
Cc: linux-mips@vger.kernel.org
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Maciej W . Rozycki <macro@linux-mips.org>
Cc: stable@vger.kernel.org # v4.4+
The MIPS VDSO build currently doesn't provide the -msoft-float flag to
the compiler as the kernel proper does. This results in an attempt to
use the compiler's default floating point configuration, which can be
problematic in cases where this is incompatible with the target CPU's
-march= flag. For example decstation_defconfig fails to build using
toolchains in which gcc was configured --with-fp-32=xx with the
following error:
LDS arch/mips/vdso/vdso.lds
cc1: error: '-march=r3000' requires '-mfp32'
make[2]: *** [scripts/Makefile.build:379: arch/mips/vdso/vdso.lds] Error 1
The kernel proper avoids this error because we build with the
-msoft-float compiler flag, rather than using the compiler's default.
Pass this flag through to the VDSO build so that it too becomes agnostic
to the toolchain's floating point configuration.
Note that this is filtered out from KBUILD_CFLAGS rather than simply
always using -msoft-float such that if we switch the kernel to use
-mno-float in the future the VDSO will automatically inherit the change.
The VDSO doesn't actually include any floating point code, and its
.MIPS.abiflags section is already manually generated to specify that
it's compatible with any floating point ABI. As such this change should
have no effect on the resulting VDSO, apart from fixing the build
failure for affected toolchains.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reported-by: Kevin Hilman <khilman@baylibre.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Kevin Hilman <khilman@baylibre.com>
References: https://lore.kernel.org/linux-mips/1477843551-21813-1-git-send-email-linux@roeck-us.net/
References: https://kernelci.org/build/id/5c4e4ae059b5142a249ad004/logs/
Fixes: ebb5e78cc6 ("MIPS: Initial implementation of a VDSO")
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@vger.kernel.org
Cc: stable@vger.kernel.org # v4.4+
Add multiple people as maintainers for XDP, sorted alphabetically.
XDP is also tied to driver level support and code, but we cannot add all
drivers to the list. Instead K: and N: match on 'xdp' in hope to catch some
of those changes in drivers.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Assign a default net namespace to netdevs created by init_dummy_netdev().
Fixes a NULL pointer dereference caused by busy-polling a socket bound to
an iwlwifi wireless device, which bumps the per-net BUSYPOLLRXPACKETS stat
if napi_poll() received packets:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000190
IP: napi_busy_loop+0xd6/0x200
Call Trace:
sock_poll+0x5e/0x80
do_sys_poll+0x324/0x5a0
SyS_poll+0x6c/0xf0
do_syscall_64+0x6b/0x1f0
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Fixes: 7db6b048da ("net: Commonize busy polling code to focus on napi_id instead of socket")
Signed-off-by: Josh Elsasser <jelsasser@appneta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The skb should be freed by dev_consume_skb_any() in b44_start_xmit()
when bounce_skb is used. The skb is be replaced by bounce_skb, so the
original skb should be consumed(not drop).
dev_consume_skb_irq() should be called in b44_tx() when skb xmit
done. It makes drop profiles(dropwatch, perf) more friendly.
Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
The skb shouled be consumed when xmit done, it makes drop profiles
(dropwatch, perf) more friendly.
dev_kfree_skb_irq()/kfree_skb() shouled be replaced by
dev_consume_skb_any(), it makes code cleaner.
Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
