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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- some fixes at CEC core to comply with HDMI 2.0 specs and fix some
border cases
- a fix at the transmission logic of the pulse8-cec driver
- one alignment fix on a data struct at ipu3 when built with 32 bits
* tag 'media/v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: intel-ipu3: Align struct ipu3_uapi_awb_fr_config_s to 32 bytes
media: pulse8-cec: fix lost cec_transmit_attempt_done() call
media: cec: check 'transmit_in_progress', not 'transmitting'
media: cec: avoid decrementing transmit_queue_sz if it is 0
media: cec: CEC 2.0-only bcast messages were ignored
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There are multiple reports of this patch breaking RTC time setting for AMD
platforms.
This reverts commit 7ad295d5196a58c22abecef62dd4f99e2f86e831.
Cc: Jinke Fan <fanjinke@hygon.cn>
Link: https://lore.kernel.org/r/CABXGCsMLob0DC25JS8wwAYydnDoHBSoMh2_YLPfqm3TTvDE-Zw@mail.gmail.com
Fixes: 7ad295d5196a ("rtc: Fix the AltCentury value on AMD/Hygon platform")
Link: https://lore.kernel.org/r/20200104043110.707810-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Current code use dma_wmb() to ensure Rx/Tx descriptors are visible
to device before writing to doorbell.
However, these dma_wmb() are wrong and unnecessary. Therefore,
they should be removed.
iowrite32be() called from gve_rx_write_doorbell()/gve_tx_put_doorbell()
should guaratee that all previous writes to WB/UC memory is visible to
device before the write done by iowrite32be().
E.g. On ARM64, iowrite32be() calls __iowmb() which expands to dma_wmb()
and only then calls __raw_writel().
Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The kernel test robot reports a boot failure with qemu in 5.5-rc,
referencing commit 2203cbf2c8b5 ("net: sfp: move fwnode parsing into
sfp-bus layer"). This is caused by phylink_create() being passed a
NULL fwnode, causing fwnode_property_get_reference_args() to return
-EINVAL.
Don't attempt to attach to a SFP bus if we have no fwnode, which
avoids this issue.
Reported-by: kernel test robot <rong.a.chen@intel.com>
Fixes: 2203cbf2c8b5 ("net: sfp: move fwnode parsing into sfp-bus layer")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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DaveM's git tree have been moved into a named subdir 'netdev' to deal with
allowing Jakub Kicinski to help co-maintain the trees.
Link: https://www.kernel.org/doc/html/latest/networking/netdev-FAQ.html
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The loopback feature is only supported on a few drivers like broadcom,
mellanox, etc. The default veth driver has not supported it yet. To avoid
returning failed and making the runner feel confused, let's just skip
the test on drivers that not support loopback.
Fixes: ad11340994d5 ("selftests: Add loopback test")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a declaration that is indented one level too deeply, remove
the extraneous tab.
Link: http://lkml.kernel.org/r/20191221154825.33073-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few fixes for btrfs:
- blkcg accounting problem with compression that could stall writes
- setting up blkcg bio for compression crashes due to NULL bdev
pointer
- fix possible infinite loop in writeback for nocow files (here
possible means almost impossible, 13 things that need to happen to
trigger it)"
* tag 'for-5.5-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: fix infinite loop during nocow writeback due to race
btrfs: fix compressed write bio blkcg attribution
btrfs: punt all bios created in btrfs_submit_compressed_write()
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Pull block fixes from Jens Axboe:
"Three fixes in here:
- Fix for a missing split on default memory boundary mask (4G) (Ming)
- Fix for multi-page read bio truncate (Ming)
- Fix for null_blk zone close request handling (Damien)"
* tag 'block-5.5-20200103' of git://git.kernel.dk/linux-block:
null_blk: Fix REQ_OP_ZONE_CLOSE handling
block: fix splitting segments on boundary masks
block: add bio_truncate to fix guard_bio_eod
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- fix build error in usr/gen_initramfs_list.sh
- fix libelf-dev dependency in deb-pkg build
* tag 'kbuild-fixes-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild/deb-pkg: annotate libelf-dev dependency as :native
gen_initramfs_list.sh: fix 'bad variable name' error
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git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull thread fixes from Christian Brauner:
"Here are two fixes:
- Panic earlier when global init exits to generate useable coredumps.
Currently, when global init and all threads in its thread-group
have exited we panic via:
do_exit()
-> exit_notify()
-> forget_original_parent()
-> find_child_reaper()
This makes it hard to extract a useable coredump for global init
from a kernel crashdump because by the time we panic exit_mm() will
have already released global init's mm. We now panic slightly
earlier. This has been a problem in certain environments such as
Android.
- Fix a race in assigning and reading taskstats for thread-groups
with more than one thread.
This patch has been waiting for quite a while since people
disagreed on what the correct fix was at first"
* tag 'for-linus-2020-01-03' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
exit: panic before exit_mm() on global init exit
taskstats: fix data-race
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two more powerpc fixes for 5.5:
- One commit to fix a build error when CONFIG_JUMP_LABEL=n,
introduced by our recent fix to is_shared_processor().
- A commit marking some SLB related functions as notrace, as tracing
them triggers warnings.
Thanks to Jason A Donenfeld"
* tag 'powerpc-5.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/spinlocks: Include correct header for static key
powerpc/mm: Mark get_slice_psize() & slice_addr_is_low() as notrace
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Nothing to worry at this stage but all nice small changes:
- A regression fix for AMD GPU detection in HD-audio
- A long-standing sleep-in-atomic fix for an ice1724 device
- Usual suspects, the device-specific quirks for HD- and USB-audio"
* tag 'sound-5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLC
ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speaker
ALSA: hda - Apply sync-write workaround to old Intel platforms, too
ALSA: hda/hdmi - fix atpx_present when CLASS is not VGA
ALSA: usb-audio: fix set_format altsetting sanity check
ALSA: hda/realtek - Add headset Mic no shutup for ALC283
ALSA: usb-audio: set the interface format after resume on Dell WD19
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Pull drm fixes from Dave Airlie:
"New Years fixes! Mostly amdgpu with a light smattering of arm
graphics, and two AGP warning fixes.
Quiet as expected, hopefully we don't get a post holiday rush.
agp:
- two unused variable removed
amdgpu:
- ATPX regression fix
- SMU metrics table locking fixes
- gfxoff fix for raven
- RLC firmware loading stability fix
mediatek:
- external display fix
- dsi timing fix
sun4i:
- Fix double-free in connector/encoder cleanup (Stefan)
maildp:
- Make vtable static (Ben)"
* tag 'drm-fixes-2020-01-03' of git://anongit.freedesktop.org/drm/drm:
agp: remove unused variable arqsz in agp_3_5_enable()
agp: remove unused variable mcapndx
drm/amdgpu: correct RLC firmwares loading sequence
drm/amdgpu: enable gfxoff for raven1 refresh
drm/amdgpu/smu: add metrics table lock for vega20 (v2)
drm/amdgpu/smu: add metrics table lock for navi (v2)
drm/amdgpu/smu: add metrics table lock for arcturus (v2)
drm/amdgpu/smu: add metrics table lock
Revert "drm/amdgpu: simplify ATPX detection"
drm/arm/mali: make malidp_mw_connector_helper_funcs static
drm/sun4i: hdmi: Remove duplicate cleanup calls
drm/mediatek: reduce the hbp and hfp for phy timing
drm/mediatek: Fix can't get component for external display plane.
drm/mediatek: Check return value of mtk_drm_ddp_comp_for_plane.
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LTP memfd_create04 started failing for some huge page sizes
after v5.4-10135-gc3bfc5dd73c6.
The problem is the check introduced to for_each_hstate() loop that
should skip default_hstate_idx. Since it doesn't update 'i' counter,
all subsequent huge page sizes are skipped as well.
Fixes: 8fc312b32b25 ("mm/hugetlbfs: fix error handling when setting up mounts")
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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sched_migrate_task fail
In the function, if register_trace_sched_migrate_task() returns error,
sched_switch/sched_wakeup_new/sched_wakeup won't unregister. That is
why fail_deprobe_sched_switch was added.
Link: http://lkml.kernel.org/r/20191231133530.2794-1-pilgrimtao@gmail.com
Cc: stable@vger.kernel.org
Fixes: 478142c39c8c2 ("tracing: do not grab lock in wakeup latency function tracing")
Signed-off-by: Kaitao Cheng <pilgrimtao@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Discussion in the below link reported that symbols in modules can appear
to be before _stext on ARM architecture, causing wrapping with the
offsets of this tracepoint. Change the offset type to s32 to fix this.
Link: http://lore.kernel.org/r/20191127154428.191095-1-antonio.borneo@st.com
Link: http://lkml.kernel.org/r/20200102194625.226436-1-joel@joelfernandes.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: David Sterba <dsterba@suse.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Antonio Borneo <antonio.borneo@st.com>
Cc: stable@vger.kernel.org
Fixes: d59158162e032 ("tracing: Add support for preempt and irq enable/disable events")
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Cross compiling the x86 kernel on a non-x86 build machine produces
the following error when CONFIG_UNWINDER_ORC is enabled, regardless
of whether libelf-dev is installed or not.
dpkg-checkbuilddeps: error: Unmet build dependencies: libelf-dev
dpkg-buildpackage: warning: build dependencies/conflicts unsatisfied; aborting
dpkg-buildpackage: warning: (Use -d flag to override.)
Since this is a build time dependency for a build tool, we need to
depend on the native version of libelf-dev so add the appropriate
annotation.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Prior to commit 858805b336be ("kbuild: add $(BASH) to run scripts with
bash-extension"), this shell script was almost always run by bash since
bash is usually installed on the system by default.
Now, this script is run by sh, which might be a symlink to dash. On such
distributions, the following code emits an error:
local dev=`LC_ALL=C ls -l "${location}"`
You can reproduce the build error, for example by setting
CONFIG_INITRAMFS_SOURCE="/dev".
GEN usr/initramfs_data.cpio.gz
./usr/gen_initramfs_list.sh: 131: local: 1: bad variable name
make[1]: *** [usr/Makefile:61: usr/initramfs_data.cpio.gz] Error 2
This is because `LC_ALL=C ls -l "${location}"` contains spaces.
Surrounding it with double-quotes fixes the error.
Fixes: 858805b336be ("kbuild: add $(BASH) to run scripts with bash-extension")
Reported-by: Jory A. Pratt <anarchy@gentoo.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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A struct that needs to be aligned to 32 bytes has a size of 28. Increase
the size to 32.
This makes elements of arrays of this struct aligned to 32 as well, and
other structs where members are aligned to 32 mixing
ipu3_uapi_awb_fr_config_s as well as other types.
Fixes: commit dca5ef2aa1e6 ("media: staging/intel-ipu3: remove the unnecessary compiler flags")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The condition should be logical NOT to assign the hook address to parent
address. Because the return value 0 of function_graph_enter upon
success.
Fixes: e949b6db51dc (riscv/function_graph: Simplify with function_graph_enter())
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
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Add the L2 cache controller DT node in SiFive FU540 soc-specific DT file
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
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This patch enables GCOV code coverage measurement on RISC-V.
Lightly tested on QEMU and Hifive Unleashed board, seems to work as
expected.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
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__pa_symbol is the marcro that should be used for kernel symbols. It is
also a pre-requisite for DEBUG_VIRTUAL which will do bounds checking.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
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This patch fix the following warning:
drivers/char/agp/isoch.c: In function ‘agp_3_5_enable’:
drivers/char/agp/isoch.c:322:13: warning: variable ‘arqsz’ set but not
used [-Wunused-but-set-variable]
u32 isoch, arqsz;
^~~~~
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This patch fix the following warning:
drivers/char/agp/isoch.c: In function ‘agp_3_5_isochronous_node_enable’:
drivers/char/agp/isoch.c:87:5: warning: variable ‘mcapndx’ set but not
used [-Wunused-but-set-variable]
u8 mcapndx;
^~~~~~~
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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The ftrace_profile->counter is unsigned long and
do_div truncates it to 32 bits, which means it can test
non-zero and be truncated to zero for division.
Fix this issue by using div64_ul() instead.
Link: http://lkml.kernel.org/r/20200103030248.14516-1-wenyang@linux.alibaba.com
Cc: stable@vger.kernel.org
Fixes: e330b3bcd8319 ("tracing: Show sample std dev in function profiling")
Fixes: 34886c8bc590f ("tracing: add average time in function to function profiler")
Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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On some archs with some configurations, MCOUNT_INSN_SIZE is not defined, and
this makes the stack tracer fail to compile. Just define it to zero in this
case.
Link: https://lore.kernel.org/r/202001020219.zvE3vsty%lkp@intel.com
Cc: stable@vger.kernel.org
Fixes: 4df297129f622 ("tracing: Remove most or all of stack tracer stack size from stack_max_size")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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In order to handle direct calls along side of function graph tracer, a check
is made to see if the address being traced by the function graph tracer is a
direct call or not. To get the address used by direct callers, the return
address is subtracted by MCOUNT_INSN_SIZE.
For some archs with certain configurations, MCOUNT_INSN_SIZE is undefined
here. But these should not be using direct calls anyway. Just define
MCOUNT_INSN_SIZE to zero in this case.
Link: https://lore.kernel.org/r/202001020219.zvE3vsty%lkp@intel.com
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: ff205766dbbee ("ftrace: Fix function_graph tracer interaction with BPF trampoline")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull final sizeof_field conversion from Kees Cook:
"Remove now unused FIELD_SIZEOF() macro (Kees Cook)"
* tag 'sizeof_field-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
kernel.h: Remove unused FIELD_SIZEOF()
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SPI core supports Octal SPI controllers which have 8 IO lines.
Therefore document 8 as a valid option for spi-tx{rx}-bus-width
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20200102102118.23318-1-vigneshr@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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dw_spi_irq() and dw_spi_transfer_one concurrent calls.
I find a panic in dw_writer(): txw = *(u8 *)(dws->tx), when dw->tx==null,
dw->len==4, and dw->tx_end==1.
When tpm driver's message overtime dw_spi_irq() and dw_spi_transfer_one
may concurrent visit dw_spi, so I think dw_spi structure lack of protection.
Otherwise dw_spi_transfer_one set dw rx/tx buffer and then open irq,
store dw rx/tx instructions and other cores handle irq load dw rx/tx
instructions may out of order.
[ 1025.321302] Call trace:
...
[ 1025.321319] __crash_kexec+0x98/0x148
[ 1025.321323] panic+0x17c/0x314
[ 1025.321329] die+0x29c/0x2e8
[ 1025.321334] die_kernel_fault+0x68/0x78
[ 1025.321337] __do_kernel_fault+0x90/0xb0
[ 1025.321346] do_page_fault+0x88/0x500
[ 1025.321347] do_translation_fault+0xa8/0xb8
[ 1025.321349] do_mem_abort+0x68/0x118
[ 1025.321351] el1_da+0x20/0x8c
[ 1025.321362] dw_writer+0xc8/0xd0
[ 1025.321364] interrupt_transfer+0x60/0x110
[ 1025.321365] dw_spi_irq+0x48/0x70
...
Signed-off-by: wuxu.wu <wuxu.wu@huawei.com>
Link: https://lore.kernel.org/r/1577849981-31489-1-git-send-email-wuxu.wu@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The .set_ramp_delay should be for bd70528_buck_ops only.
Setting .set_ramp_delay for for bd70528_ldo_ops causes problem because
BD70528_MASK_BUCK_RAMP (0x10) overlaps with BD70528_MASK_LDO_VOLT (0x1f).
So setting ramp_delay for LDOs may change the voltage output, fix it.
Fixes: 99ea37bd1e7d ("regulator: bd70528: Support ROHM BD70528 regulator block")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/20200101022406.15176-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull gcc-plugins fix from Kees Cook:
"Build flexibility fix: allow builds to disable plugins even when
plugins available (Arnd Bergmann)"
* tag 'gcc-plugins-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
gcc-plugins: make it possible to disable CONFIG_GCC_PLUGINS again
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp fixes from Kees Cook:
"Fixes for seccomp_notify_ioctl uapi sanity from Sargun Dhillon.
The bulk of this is fixing the surrounding samples and selftests so
that seccomp can correctly validate the seccomp_notify_ioctl buffer as
being initially zeroed.
Summary:
- Fix samples and selftests to zero passed-in buffer
- Enforce zeroed buffer checking
- Verify buffer sanity check in selftest"
* tag 'seccomp-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/seccomp: Catch garbage on SECCOMP_IOCTL_NOTIF_RECV
seccomp: Check that seccomp_notif is zeroed out by the user
selftests/seccomp: Zero out seccomp_notif
samples/seccomp: Zero out members based on seccomp_notif_sizes
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Declaring __current_thread_info as a global register variable has the
effect of preventing GCC from saving & restoring its value in cases
where the ABI would typically do so.
To quote GCC documentation:
> If the register is a call-saved register, call ABI is affected: the
> register will not be restored in function epilogue sequences after the
> variable has been assigned. Therefore, functions cannot safely return
> to callers that assume standard ABI.
When our position independent VDSO is built for the n32 or n64 ABIs all
functions it exposes should be preserving the value of $gp/$28 for their
caller, but in the presence of the __current_thread_info global register
variable GCC stops doing so & simply clobbers $gp/$28 when calculating
the address of the GOT.
In cases where the VDSO returns success this problem will typically be
masked by the caller in libc returning & restoring $gp/$28 itself, but
that is by no means guaranteed. In cases where the VDSO returns an error
libc will typically contain a fallback path which will now fail
(typically with a bad memory access) if it attempts anything which
relies upon the value of $gp/$28 - eg. accessing anything via the GOT.
One fix for this would be to move the declaration of
__current_thread_info inside the current_thread_info() function,
demoting it from global register variable to local register variable &
avoiding inadvertently creating a non-standard calling ABI for the VDSO.
Unfortunately this causes issues for clang, which doesn't support local
register variables as pointed out by commit fe92da0f355e ("MIPS: Changed
current_thread_info() to an equivalent supported by both clang and GCC")
which introduced the global register variable before we had a VDSO to
worry about.
Instead, fix this by continuing to use the global register variable for
the kernel proper but declare __current_thread_info as a simple extern
variable when building the VDSO. It should never be referenced, and will
cause a link error if it is. This resolves the calling convention issue
for the VDSO without having any impact upon the build of the kernel
itself for either clang or gcc.
Signed-off-by: Paul Burton <paulburton@kernel.org>
Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO")
Reported-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christian Brauner <christian.brauner@canonical.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: <stable@vger.kernel.org> # v4.4+
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2020-01-02
this is a pull request of 9 patches for net/master.
The first 5 patches target all the tcan4x5x driver. The first 3 patches
of them are by Dan Murphy and Sean Nyekjaer and improve the device
initialization (power on, reset and get device out of standby before
register access). The next patch is by Dan Murphy and disables the INH
pin device-state if the GPIO is unavailable. The last patch for the
tcan4x5x driver is by Gustavo A. R. Silva and fixes an inconsistent
PTR_ERR check in the tcan4x5x_parse_config() function.
The next patch is by Oliver Hartkopp and targets the generic CAN device
infrastructure. It ensures that an initialized headroom in outgoing CAN
sk_buffs (e.g. if injected by AF_PACKET).
The last 2 patches are by Johan Hovold and fix the kvaser_usb and gs_usb
drivers by always using the current alternate setting not blindly the
first one.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore bug fixes from Kees Cook:
- always reset circular buffer state when writing new dump (Aleksandr
Yashkin)
- fix rare error-path memory leak (Kees Cook)
* tag 'pstore-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
pstore/ram: Write new dumps to start of recycled zones
pstore/ram: Fix error-path memory leak in persistent_ram_new() callers
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In order to dump the FECs registers the clocks have to be ticking,
otherwise a data abort occurs. Add calls to runtime PM so they are
enabled and later disabled.
Fixes: e8fcfcd5684a ("net: fec: optimize the clock management to save power")
Reported-by: Chris Healy <Chris.Healy@zii.aero>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Before ip_tunnel_ecn_encap() and udp_tunnel_xmit_skb() we should filter
tos value by RT_TOS() instead of using config tos directly.
vxlan_get_route() would filter the tos to fl4.flowi4_tos but we didn't
return it back, as geneve_get_v4_rt() did. So we have to use RT_TOS()
directly in function ip_tunnel_ecn_encap().
Fixes: 206aaafcd279 ("VXLAN: Use IP Tunnels tunnel ENC encap API")
Fixes: 1400615d64cf ("vxlan: allow setting ipv6 traffic class")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The variables 'window_interval' is u64 and do_div()
truncates it to 32 bits, which means it can test
non-zero and be truncated to zero for division.
The unit of window_interval is nanoseconds,
so its lower 32-bit is relatively easy to exceed.
Fix this issue by using div64_u64() instead.
Fixes: 7298de9cd725 ("sch_cake: Add ingress mode")
Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Cc: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: cake@lists.bufferbloat.net
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 8243186f0cc7 ("fs: remove ksys_dup()") and the
subsequent fix for it in commit 2d3145f8d280 ("early init: fix error
handling when opening /dev/console").
Trying to use filp_open() and f_dupfd() instead of pseudo-syscalls
caused more trouble than what is worth it: it requires accessing vfs
internals and it turns out there were other bugs in it too.
In particular, the file reference counting was wrong - because unlike
the original "open+2*dup" sequence it used "filp_open+3*f_dupfd" and
thus had an extra leaked file reference.
That in turn then caused odd problems with Androidx86 long after boot
becaue of how the extra reference to the console kept the session active
even after all file descriptors had been closed.
Reported-by: youling 257 <youling257@gmail.com>
Cc: Arvind Sankar <nivedita@alum.mit.edu>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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It can take on the values of '0', '1', and '2' and thus
is not a boolean.
Signed-off-by: David S. Miller <davem@davemloft.net>
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gcc produces a variable may be uninitialized warning for "val" in
parse_entry(). This is really a false positive, but the code is subtle
enough to just initialize val to zero and it's not a fast path to worry
about it.
Marked for stable to remove the warning in the stable trees as well.
Cc: stable@vger.kernel.org
Fixes: 6c3edaf9fd6a3 ("tracing: Introduce trace event injection")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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When we receive a D-SACK, where the sequence number satisfies:
undo_marker <= start_seq < end_seq <= prior_snd_una
we consider this is a valid D-SACK and tcp_is_sackblock_valid()
returns true, then this D-SACK is discarded as "old stuff",
but the variable first_sack_index is not marked as negative
in tcp_sacktag_write_queue().
If this D-SACK also carries a SACK that needs to be processed
(for example, the previous SACK segment was lost), this SACK
will be treated as a D-SACK in the following processing of
tcp_sacktag_write_queue(), which will eventually lead to
incorrect updates of undo_retrans and reordering.
Fixes: fd6dad616d4f ("[TCP]: Earlier SACK block verification & simplify access to them")
Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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mv88e6xxx_port_set_cmode() relies on cmode stored in struct
mv88e6xxx_port to skip cmode update when the requested value matches the
cached value. It turns out that mv88e6xxx_port_hidden_write() might
change the port cmode setting as a side effect, so we can't rely on the
cached value to determine that cmode update in not necessary.
Force cmode update in mv88e6341_port_set_cmode(), to make
serdes configuration work again. Other mv88e6xxx_port_set_cmode()
callers keep the current behaviour.
This fixes serdes configuration of the 6141 switch on SolidRun Clearfog
GT-8K.
Fixes: 7a3007d22e8 ("net: dsa: mv88e6xxx: fully support SERDES on Topaz family")
Reported-by: Denis Odintsov <d.odintsov@traviangames.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I noticed that randconfig builds with gcc no longer produce a lot of
ccache hits, unlike with clang, and traced this back to plugins
now being enabled unconditionally if they are supported.
I am now working around this by adding
export CCACHE_COMPILERCHECK=/usr/bin/size -A %compiler%
to my top-level Makefile. This changes the heuristic that ccache uses
to determine whether the plugins are the same after a 'make clean'.
However, it also seems that being able to just turn off the plugins is
generally useful, at least for build testing it adds noticeable overhead
but does not find a lot of bugs additional bugs, and may be easier for
ccache users than my workaround.
Fixes: 9f671e58159a ("security: Create "kernel hardening" config area")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20191211133951.401933-1-arnd@arndb.de
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
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This adds logic to the user_notification_basic test to set a member
of struct seccomp_notif to an invalid value to ensure that the kernel
returns EINVAL if any of the struct seccomp_notif members are set to
invalid values.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Suggested-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20191230203811.4996-1-sargun@sargun.me
Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
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This patch is a small change in enforcement of the uapi for
SECCOMP_IOCTL_NOTIF_RECV ioctl. Specifically, the datastructure which
is passed (seccomp_notif) must be zeroed out. Previously any of its
members could be set to nonsense values, and we would ignore it.
This ensures all fields are set to their zero value.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: Aleksa Sarai <cyphar@cyphar.com>
Acked-by: Tycho Andersen <tycho@tycho.ws>
Link: https://lore.kernel.org/r/20191229062451.9467-2-sargun@sargun.me
Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
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