mirror of https://gitee.com/openkylin/linux.git
901467 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Madhuparna Bhowmik
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253216ffb2 |
mac80211: rx: avoid RCU list traversal under mutex
local->sta_mtx is held in __ieee80211_check_fast_rx_iface(). No need to use list_for_each_entry_rcu() as it also requires a cond argument to avoid false lockdep warnings when not used in RCU read-side section (with CONFIG_PROVE_RCU_LIST). Therefore use list_for_each_entry(); Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com> Link: https://lore.kernel.org/r/20200223143302.15390-1-madhuparnabhowmik10@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Johannes Berg
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e3ae39edbc |
nl80211: explicitly include if_vlan.h
We use that here, and do seem to get it through some recursive include, but better include it explicitly. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200224093814.1b9c258fec67.I45ac150d4e11c72eb263abec9f1f0c7add9bef2b@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Madhuparna Bhowmik
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6132c1d903 |
net: core: devlink.c: Hold devlink->lock from the beginning of devlink_dpipe_table_register()
devlink_dpipe_table_find() should be called under either rcu_read_lock() or devlink->lock. devlink_dpipe_table_register() calls devlink_dpipe_table_find() without holding the lock and acquires it later. Therefore hold the devlink->lock from the beginning of devlink_dpipe_table_register(). Suggested-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Florian Fainelli
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503ba7c696 |
net: phy: Avoid multiple suspends
It is currently possible for a PHY device to be suspended as part of a
network device driver's suspend call while it is still being attached to
that net_device, either via phy_suspend() or implicitly via phy_stop().
Later on, when the MDIO bus controller get suspended, we would attempt
to suspend again the PHY because it is still attached to a network
device.
This is both a waste of time and creates an opportunity for improper
clock/power management bugs to creep in.
Fixes:
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Marek Vasut
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44343418d0 |
net: ks8851-ml: Fix IRQ handling and locking
The KS8851 requires that packet RX and TX are mutually exclusive. Currently, the driver hopes to achieve this by disabling interrupt from the card by writing the card registers and by disabling the interrupt on the interrupt controller. This however is racy on SMP. Replace this approach by expanding the spinlock used around the ks_start_xmit() TX path to ks_irq() RX path to assure true mutual exclusion and remove the interrupt enabling/disabling, which is now not needed anymore. Furthermore, disable interrupts also in ks_net_stop(), which was missing before. Note that a massive improvement here would be to re-use the KS8851 driver approach, which is to move the TX path into a worker thread, interrupt handling to threaded interrupt, and synchronize everything with mutexes, but that would be a much bigger rework, for a separate patch. Signed-off-by: Marek Vasut <marex@denx.de> Cc: David S. Miller <davem@davemloft.net> Cc: Lukas Wunner <lukas@wunner.de> Cc: Petr Stetiar <ynezz@true.cz> Cc: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Jonathan Neuschäfer
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52df1e564e |
docs: networking: phy: Rephrase paragraph for clarity
Let's make it a little easier to read. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Neal Cardwell
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dad8cea7ad |
tcp: fix TFO SYNACK undo to avoid double-timestamp-undo
In a rare corner case the new logic for undo of SYNACK RTO could
result in triggering the warning in tcp_fastretrans_alert() that says:
WARN_ON(tp->retrans_out != 0);
The warning looked like:
WARNING: CPU: 1 PID: 1 at net/ipv4/tcp_input.c:2818 tcp_ack+0x13e0/0x3270
The sequence that tickles this bug is:
- Fast Open server receives TFO SYN with data, sends SYNACK
- (client receives SYNACK and sends ACK, but ACK is lost)
- server app sends some data packets
- (N of the first data packets are lost)
- server receives client ACK that has a TS ECR matching first SYNACK,
and also SACKs suggesting the first N data packets were lost
- server performs TS undo of SYNACK RTO, then immediately
enters recovery
- buggy behavior then performed a *second* undo that caused
the connection to be in CA_Open with retrans_out != 0
Basically, the incoming ACK packet with SACK blocks causes us to first
undo the cwnd reduction from the SYNACK RTO, but then immediately
enters fast recovery, which then makes us eligible for undo again. And
then tcp_rcv_synrecv_state_fastopen() accidentally performs an undo
using a "mash-up" of state from two different loss recovery phases: it
uses the timestamp info from the ACK of the original SYNACK, and the
undo_marker from the fast recovery.
This fix refines the logic to only invoke the tcp_try_undo_loss()
inside tcp_rcv_synrecv_state_fastopen() if the connection is still in
CA_Loss. If peer SACKs triggered fast recovery, then
tcp_rcv_synrecv_state_fastopen() can't safely undo.
Fixes:
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Haiyang Zhang
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f6f13c125e |
hv_netvsc: Fix unwanted wakeup in netvsc_attach()
When netvsc_attach() is called by operations like changing MTU, etc.,
an extra wakeup may happen while netvsc_attach() calling
rndis_filter_device_add() which sends rndis messages when queue is
stopped in netvsc_detach(). The completion message will wake up queue 0.
We can reproduce the issue by changing MTU etc., then the wake_queue
counter from "ethtool -S" will increase beyond stop_queue counter:
stop_queue: 0
wake_queue: 1
The issue causes queue wake up, and counter increment, no other ill
effects in current code. So we didn't see any network problem for now.
To fix this, initialize tx_disable to true, and set it to false when
the NIC is ready to be attached or registered.
Fixes:
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Linus Torvalds
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f8788d86ab | Linux 5.6-rc3 | |
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Daniele Palmas
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eae7172f81 |
net: usb: qmi_wwan: restore mtu min/max values after raw_ip switch
usbnet creates network interfaces with min_mtu = 0 and max_mtu = ETH_MAX_MTU. These values are not modified by qmi_wwan when the network interface is created initially, allowing, for example, to set mtu greater than 1500. When a raw_ip switch is done (raw_ip set to 'Y', then set to 'N') the mtu values for the network interface are set through ether_setup, with min_mtu = ETH_MIN_MTU and max_mtu = ETH_DATA_LEN, not allowing anymore to set mtu greater than 1500 (error: mtu greater than device maximum). The patch restores the original min/max mtu values set by usbnet after a raw_ip switch. Signed-off-by: Daniele Palmas <dnlplm@gmail.com> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linus Torvalds
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d2eee25858 |
for-5.6-rc2-tag
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Merge tag 'for-5.6-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"These are fixes that were found during testing with help of error
injection, plus some other stable material.
There's a fixup to patch added to rc1 causing locking in wrong context
warnings, tests found one more deadlock scenario. The patches are
tagged for stable, two of them now in the queue but we'd like all
three released at the same time.
I'm not happy about fixes to fixes in such a fast succession during
rcs, but I hope we found all the fallouts of commit
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Linus Torvalds
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a3163ca03f |
More miscellaneous ext4 bug fixes (all stable fodder)
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAl5R8vEACgkQ8vlZVpUN gaMkPQf/QpimFVWvW+y2u9wOCl4pS38fog3SEbaCMcmCjndUfgLd9zf43GetFUfD DYbxmzotu+WEqHH83H6c+Cr/9tmhxrH5njhydxlzucocqyxdWmdWKe5cNz3ECJ6Z c4B1HFux+w/AfSGs73AU1K9APHlc/yXnZhgHpjLON6mP0Ata9lRZkmxwe9RnSWEn 186U1/kWe6sHNyOe1iQJC1QOPSauqY8SQDTZr5QSHLEyO7M/eJje+bplocor6JnJ HTsKHdP1dNQaQzZxup4QgvZ33vAfgsgwIFtJKhF4ps+2NsILJzH5FfYW+dHTpnqe INuJM5kPkkUuNnQqCfFDOvmaDGwjqQ== =i1ka -----END PGP SIGNATURE----- Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "More miscellaneous ext4 bug fixes (all stable fodder)" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix mount failure with quota configured as module jbd2: fix ocfs2 corrupt when clearing block group bits ext4: fix race between writepages and enabling EXT4_EXTENTS_FL ext4: rename s_journal_flag_rwsem to s_writepages_rwsem ext4: fix potential race between s_flex_groups online resizing and access ext4: fix potential race between s_group_info online resizing and access ext4: fix potential race between online resizing and write operations ext4: add cond_resched() to __ext4_find_entry() ext4: fix a data race in EXT4_I(inode)->i_disksize |
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Linus Torvalds
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c6188dff33 |
csky updates for 5.6-rc3
- Fix up cache flush implementations. - Fix up ftrace modify panic. - Fix up CONFIG_SMP boot problem. - Fix up pt_regs saving for atomic.S. - Fix up fixaddr_init without highmem. - Fix up stack protector support. - Fix up fake Tightly-Coupled Memory codes compile and use. - Fix up some typos and coding convention. The tag is tested with [1]. 1: https://gitlab.com/c-sky/buildroot/pipelines/120268254 -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE2KAv+isbWR/viAKHAXH1GYaIxXsFAl5SoooSHHJlbl9ndW9A Yy1za3kuY29tAAoJEAFx9RmGiMV7u3wP/R3h6X5QBWJtNo9N+02de2uHo8+yboj1 quXlqaMx9iY8OIUY6LmJ/tauk+AQGAsMC8sAWGfZbKnejXrbk2mL0K41sWYPCWyX qWXb8P4lHCaYo8ohVvOkvu2IseJ4DqP8VD1bFRob0p4NLjOGl/W4vuOsNgAQjSec 9arU97yG6xfS5gfFiCfelUdR6EaGL5nOI/ZipOOyy+lWmWdkJZl6X8VSR2RRWOiu 2dahNC4dZFjsGQ30mvaydj7KKWwOUaddH0nsXxvZf2zStWejw9jy4YqUxnegx74w 8f1PJxossORubQ2YqXwoldQKjbpq1+ZCIiWQRBgljqKoFpJM9jEPP/e2qkF7hAUq 9LN1ETPfIoBXCSz3spiYkFHzgZLxixmpXYKsC83bILFcxDNvsOEBfAo78V6IWTOT DSKMXL+37fA88Nux86XRQ/Sx5BSWYXI4JJHiasmXIeqqkZnhf8ydQAnUrTO1P2Ec jk1XPjzZzx5shF0uUb9M9vfg0/mrFIvBKB+cyr6mpd0cipFe/eWBQ/sN292YnBXw 966DJVZjUsPWAmwLt40+S4GClmGMs30ml3D/c4Xmz1cxkpa6Oq7om/1SToieFhmo h6heU3F4gT0Ql3I8ckubeM889jhVFgK1GWvQH7AqF3oogRnENjLZLqt2MZDSf3qM jfVcP6ooVk/a =44mk -----END PGP SIGNATURE----- Merge tag 'csky-for-linus-5.6-rc3' of git://github.com/c-sky/csky-linux Pull csky updates from Guo Ren: "Sorry, I missed 5.6-rc1 merge window, but in this pull request the most are the fixes and the rests are between fixes and features. The only outside modification is the MAINTAINERS file update with our mailing list. - cache flush implementation fixes - ftrace modify panic fix - CONFIG_SMP boot problem fix - fix pt_regs saving for atomic.S - fix fixaddr_init without highmem. - fix stack protector support - fix fake Tightly-Coupled Memory code compile and use - fix some typos and coding convention" * tag 'csky-for-linus-5.6-rc3' of git://github.com/c-sky/csky-linux: (23 commits) csky: Replace <linux/clk-provider.h> by <linux/of_clk.h> csky: Implement copy_thread_tls csky: Add PCI support csky: Minimize defconfig to support buildroot config.fragment csky: Add setup_initrd check code csky: Cleanup old Kconfig options arch/csky: fix some Kconfig typos csky: Fixup compile warning for three unimplemented syscalls csky: Remove unused cache implementation csky: Fixup ftrace modify panic csky: Add flush_icache_mm to defer flush icache all csky: Optimize abiv2 copy_to_user_page with VM_EXEC csky: Enable defer flush_dcache_page for abiv2 cpus (807/810/860) csky: Remove unnecessary flush_icache_* implementation csky: Support icache flush without specific instructions csky/Kconfig: Add Kconfig.platforms to support some drivers csky/smp: Fixup boot failed when CONFIG_SMP csky: Set regs->usp to kernel sp, when the exception is from kernel csky/mm: Fixup export invalid_pte_table symbol csky: Separate fixaddr_init from highmem ... |
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Oliver Upton
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35a571346a |
KVM: nVMX: Check IO instruction VM-exit conditions
Consult the 'unconditional IO exiting' and 'use IO bitmaps' VM-execution controls when checking instruction interception. If the 'use IO bitmaps' VM-execution control is 1, check the instruction access against the IO bitmaps to determine if the instruction causes a VM-exit. Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Oliver Upton
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e71237d3ff |
KVM: nVMX: Refactor IO bitmap checks into helper function
Checks against the IO bitmap are useful for both instruction emulation and VM-exit reflection. Refactor the IO bitmap checks into a helper function. Signed-off-by: Oliver Upton <oupton@google.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Paolo Bonzini
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07721feee4 |
KVM: nVMX: Don't emulate instructions in guest mode
vmx_check_intercept is not yet fully implemented. To avoid emulating instructions disallowed by the L1 hypervisor, refuse to emulate instructions by default. Cc: stable@vger.kernel.org [Made commit, added commit msg - Oliver] Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Oliver Upton
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5ef8acbdd6 |
KVM: nVMX: Emulate MTF when performing instruction emulation
Since commit |
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Li RongQing
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dd58f3c95c |
KVM: fix error handling in svm_hardware_setup
rename svm_hardware_unsetup as svm_hardware_teardown, move it before svm_hardware_setup, and call it to free all memory if fail to setup in svm_hardware_setup, otherwise memory will be leaked remove __exit attribute for it since it is called in __init function Signed-off-by: Li RongQing <lirongqing@baidu.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Paolo Abeni
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39f3b41aa7 |
net: genetlink: return the error code when attribute parsing fails.
Currently if attribute parsing fails and the genl family does not support parallel operation, the error code returned by __nlmsg_parse() is discarded by genl_family_rcv_msg_attrs_parse(). Be sure to report the error for all genl families. Fixes: |
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Matteo Croce
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3e72dfdf82 |
ipv4: ensure rcu_read_lock() in cipso_v4_error()
Similarly to commit |
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Eugenio Pérez
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42d84c8490 |
vhost: Check docket sk_family instead of call getname
Doing so, we save one call to get data we already have in the struct.
Also, since there is no guarantee that getname use sockaddr_ll
parameter beyond its size, we add a little bit of security here.
It should do not do beyond MAX_ADDR_LEN, but syzbot found that
ax25_getname writes more (72 bytes, the size of full_sockaddr_ax25,
versus 20 + 32 bytes of sockaddr_ll + MAX_ADDR_LEN in syzbot repro).
Fixes:
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Geert Uytterhoeven
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99db590b08 |
csky: Replace <linux/clk-provider.h> by <linux/of_clk.h>
The C-Sky platform code is not a clock provider, and just needs to call of_clk_init(). Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Guo Ren <guoren@linux.alibaba.com> |
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Linus Torvalds
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dca132a60f |
Two fixes for the AMD MCE driver:
- Populate the per CPU MCA bank descriptor pointer only after it has been
completely set up to prevent a use-after-free in case that one of the
subsequent initialization step fails
- Implement a proper release function for the sysfs entries of MCA
threshold controls instead of freeing the memory right in the CPU
teardown code, which leads to another use-after-free when the
associated sysfs file is opened and accessed.
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Merge tag 'ras-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS fixes from Thomas Gleixner:
"Two fixes for the AMD MCE driver:
- Populate the per CPU MCA bank descriptor pointer only after it has
been completely set up to prevent a use-after-free in case that one
of the subsequent initialization step fails
- Implement a proper release function for the sysfs entries of MCA
threshold controls instead of freeing the memory right in the CPU
teardown code, which leads to another use-after-free when the
associated sysfs file is opened and accessed"
* tag 'ras-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce/amd: Fix kobject lifetime
x86/mce/amd: Publish the bank pointer only after setup has succeeded
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Paul Moore
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2ad3e17ebf |
audit: fix error handling in audit_data_to_entry()
Commit |
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Linus Torvalds
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f3cc24942e |
Two fixes for the irq core code which are follow ups to the recent MSI
fixes:
- The WARN_ON which was put into the MSI setaffinity callback for paranoia
reasons actually triggered via a callchain which escaped when all the
possible ways to reach that code were analyzed.
The proc/irq/$N/*affinity interfaces have a quirk which came in when
ALPHA moved to the generic interface: In case that the written affinity
mask does not contain any online CPU it calls into ALPHAs magic auto
affinity setting code.
A few years later this mechanism was also made available to x86 for no
good reasons and in a way which circumvents all sanity checks for
interrupts which cannot have their affinity set from process context on
X86 due to the way the X86 interrupt delivery works.
It would be possible to make this work properly, but there is no point
in doing so. If the interrupt is not yet started then the affinity
setting has no effect and if it is started already then it is already
assigned to an online CPU so there is no point to randomly move it to
some other CPU. Just return EINVAL as the code has done before that
change forever.
- The new MSI quirk bit in the irq domain flags turned out to be already
occupied, which escaped the author and the reviewers because the already
in use bits were 0,6,2,3,4,5 listed in that order. That bit 6 was simply
overlooked because the ordering was straight forward linear
otherwise. So the new bit ended up being a duplicate. Fix it up by
switching the oddball 6 to the obvious 1.
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Merge tag 'irq-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"Two fixes for the irq core code which are follow ups to the recent MSI
fixes:
- The WARN_ON which was put into the MSI setaffinity callback for
paranoia reasons actually triggered via a callchain which escaped
when all the possible ways to reach that code were analyzed.
The proc/irq/$N/*affinity interfaces have a quirk which came in
when ALPHA moved to the generic interface: In case that the written
affinity mask does not contain any online CPU it calls into ALPHAs
magic auto affinity setting code.
A few years later this mechanism was also made available to x86 for
no good reasons and in a way which circumvents all sanity checks
for interrupts which cannot have their affinity set from process
context on X86 due to the way the X86 interrupt delivery works.
It would be possible to make this work properly, but there is no
point in doing so. If the interrupt is not yet started then the
affinity setting has no effect and if it is started already then it
is already assigned to an online CPU so there is no point to
randomly move it to some other CPU. Just return EINVAL as the code
has done before that change forever.
- The new MSI quirk bit in the irq domain flags turned out to be
already occupied, which escaped the author and the reviewers
because the already in use bits were 0,6,2,3,4,5 listed in that
order.
That bit 6 was simply overlooked because the ordering was straight
forward linear otherwise. So the new bit ended up being a
duplicate.
Fix it up by switching the oddball 6 to the obvious 1"
* tag 'irq-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/irqdomain: Make sure all irq domain flags are distinct
genirq/proc: Reject invalid affinity masks (again)
|
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Linus Torvalds
|
fca1037864 |
Two fixes for x86:
- Remove the __force_oder definiton from the kaslr boot code as it is
already defined in the page table code which makes GCC 10 builds fail
because it changed the default to -fno-common.
- Address the AMD erratum 1054 concerning the IRPERF capability and
enable the Instructions Retired fixed counter on machines which are not
affected by the erratum.
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Merge tag 'x86-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Two fixes for x86:
- Remove the __force_oder definiton from the kaslr boot code as it is
already defined in the page table code which makes GCC 10 builds
fail because it changed the default to -fno-common.
- Address the AMD erratum 1054 concerning the IRPERF capability and
enable the Instructions Retired fixed counter on machines which are
not affected by the erratum"
* tag 'x86-urgent-2020-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/amd: Enable the fixed Instructions Retired counter IRPERF
x86/boot/compressed: Don't declare __force_order in kaslr_64.c
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Linus Torvalds
|
0a115e5f23 |
fs/zonefs patches for 5.6-rc3
A single patch for this pull request fixing typos in the documentation file. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSRPv8tYSvhwAzJdzjdoc3SxdoYdgUCXk+pDAAKCRDdoc3SxdoY dmbgAP4u1PZ50DxPZ2rcRurhC1PAez4zpQu0R3NOpH0ZivYpeAD/W3aGZAZNRlkQ 7mAnSwaDLMFfznf7EeaWTxZ85cC6WAQ= =T/LG -----END PGP SIGNATURE----- Merge tag 'zonefs-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs Pull zonefs fix from Damien Le Moal: "A single patch fixing typos in the documentation file" * tag 'zonefs-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs: zonefs: fix documentation typos etc. |
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Linus Torvalds
|
b88025ea47 |
io_uring-5.6-2020-02-22
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl5RXt4QHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgprPZEACevRyIjhdEmD9eyXlixw1O6zs/dHR4QVf6 RuuNoX1Ssxmf4zHBPcifBVenoUhIviJ/hBACdYNuPz+YWdx3FO/BF8FFv656ssHr xhj8sC/8vz+fnwKyb/Lwt56NdRc8Ddtw6iWsF4po650n7JItq8BmDkHT/y3SJI0Z L1UrUX4TxXEDfKsW2gbNCNIPjaiDSErJFP6FT1pcUZwLmF3zyJC6btR21AaAJbRC CwatdbBg9K1SnvArn/NMd16C0p1LVBt3P2clagC90zlkCyb2vANN+YTnbo7KCsX7 XmssosPu5lamJQdsTNNxH7DHVUh/lZg9CEhUpy2ctXYSf1a6Ak6Y3qktCM5VW7FX x+6aZdJj0UDdA+MvdcHZWjxKfJFmbS2iRjTfbTXpyLX/1qFmvI9ww9xzgP68iK8s guxLxOQoCDx102SNKGmffcKY2C+yl3HHGRZATxy9C85WSvz7bwtvcbWwT/x13UxO TWa8ghe0N4jfJ3sNfADZ0Dtehrj8ryslrRc0XS6y7v3m7MqOABkz7texH006j43G FW23kqMyYJTlm+JIEIly9C5MSd4nFU0gyfBtMKGMBHF2JHgZez1LkDEiC2B5O1he m9IAhGgFzgOuTFwJxwLcutDNUv4GyK6dMdLl+DzAv0hthSHjVsT2vb06X99NMenq nzMADXHvxQ== =euzH -----END PGP SIGNATURE----- Merge tag 'io_uring-5.6-2020-02-22' of git://git.kernel.dk/linux-block Pull io_uring fixes from Jens Axboe: "Here's a small collection of fixes that were queued up: - Remove unnecessary NULL check (Dan) - Missing io_req_cancelled() call in fallocate (Pavel) - Put the cleanup check for aux data in the right spot (Pavel) - Two fixes for SQPOLL (Stefano, Xiaoguang)" * tag 'io_uring-5.6-2020-02-22' of git://git.kernel.dk/linux-block: io_uring: fix __io_iopoll_check deadlock in io_sq_thread io_uring: prevent sq_thread from spinning when it should stop io_uring: fix use-after-free by io_cleanup_req() io_uring: remove unnecessary NULL checks io_uring: add missing io_req_cancelled() |
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Linus Torvalds
|
f6c69b7f51 |
block-5.6-2020-02-22
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl5RXlAQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpt6LD/9+QcLDwom/y76ZKM+sqFUd1cIozbuVbP0E 35vrMuANLryLhKXxo5rZ2fqIyuhD8IzvvcztLP53aGdi8NEfiDK6KdUz4rmioA8I htVxiAXf5jNFM/6eVP3APKn5H7QG4Q0CiLiXMrSajbxgZh70CtsBsZODxmHSO9L5 +H3ew6rCcE29U+bOsSYDTwPRMGWOX8FBKfgX8KWPql5uqzNAklA8TUizv7H97NIj wuFbeIiT/JfypFh7ahu6k2JNE+gB6Fchbbt3I52/8tjWWMsTkrgz2bj0JjrFkrsj wlhyv5aK8p7QSpPDtqFZN2W4pT5IaqWrgjbxR4KEpCu0G3f80LiHD3Ck8taJ311V 4dSd7oQ+XpeEa7S/iWGDc90pQbbqCJN9NiniFBs/aTxu368leKDmP7YTnNfaNqcR 9mpgzgK+Jcz/w2ub0L8LYBmZLhoDdqZFAjrAzFDq+pJWZrTbtzw1HGBMXf8KZqhs bdNiITD1lVW8h2v7FoalrCEmn7vfsteV7eFPJ96DPBVAUp3yBJsZUk1q4iPcX3xG gGIU0DdDOPTZoCfsLlHR4mfG3mW7QkAI50MNECj9Qe0h53TutO5GVbLOgHzwe1nu p6irFNyCiFJ9HkFfUAUG1D8xUafb5i0Xvvnf8TLbkgImlZKTK+RuSfGsMlHLlZnm 80OCm8s8Lg== =s3i8 -----END PGP SIGNATURE----- Merge tag 'block-5.6-2020-02-22' of git://git.kernel.dk/linux-block Pull block fixes from Jens Axboe: "Just a set of NVMe fixes via Keith" * tag 'block-5.6-2020-02-22' of git://git.kernel.dk/linux-block: nvme-multipath: Fix memory leak with ana_log_buf nvme: Fix uninitialized-variable warning nvme-pci: Use single IRQ vector for old Apple models nvme/pci: Add sleep quirk for Samsung and Toshiba drives |
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Linus Torvalds
|
b98b809c0a |
SCSI fixes on 20200221
Four non-core fixes. Two are reverts of target fixes which turned out to have unwanted side effects, one is a revert of an RDMA fix with the same problem and the final one fixes an incorrect warning about memory allocation failures in megaraid_sas (the driver actually reduces the allocation size until it succeeds). Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXlBhuyYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishdMGAQCR8Qi2 m2kPgccUvJwVmnJ+DRJ3MRRX3Kn0IJIDoIc0IgEA6/W33+7xY8qQ0uahOyOT90tz g7Y2I7TxQ+dsL9pqs80= =JIpx -----END PGP SIGNATURE----- Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Four non-core fixes. Two are reverts of target fixes which turned out to have unwanted side effects, one is a revert of an RDMA fix with the same problem and the final one fixes an incorrect warning about memory allocation failures in megaraid_sas (the driver actually reduces the allocation size until it succeeds)" Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session" scsi: Revert "RDMA/isert: Fix a recently introduced regression related to logout" scsi: megaraid_sas: silence a warning scsi: Revert "target/core: Inline transport_lun_remove_cmd()" |
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Linus Torvalds
|
5b442b1a4e |
hwmon fixes for v5.6-rc3
- Fix crash in w83627ehf driver seen with W83627DHG-P - Fix lockdep splat in acpi_power_meter driver - Fix xdpe12284 documentation Sphinx warnings -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEiHPvMQj9QTOCiqgVyx8mb86fmYEFAl5Qin0ACgkQyx8mb86f mYHhgRAAlb9UdDHf2BSUGoWGqJQYl+akQwhlqggOMVJKONCRJe53xzfpTlQclPfZ fBgHqWWVHosSe4QqUd6+OhNWW1njzKNsoDV3rwpeprZfBbTsgUu0o9emqOJKmTTg DbhqPvNUBFF+MYhTObFEKcHJUHhxp6UsCwigInfoV8T7EWYJbe4QVDr3zIVm3Yvu 7Fpap32Jmm3btLaEk8FOCrZMNRPkLgR2vgHmhHpWYDpqccz+uCPEwkKBVez7ix3e g0mNzZGJXFmgc6jzYhB7YpYhQp1OyJDNldnYfmqYoaZ97JNKe04qRP8+vaN2PTmY 6Vvt7HvzToSYO6PGbcIQkFxI63Pm3ZOv0v/wnbi1MFPraAJg5eKN4NpgnnzBm06d 3u+TUTREHYappBNS+x8xw3D+gpZeHQ0izJAmFV3WnM36kGUaFD4N0oZ0x/em4veG kVBJJvxgv5hcLtaaJSc63DawiITRR1PkZhcvIfOAH37M4NMu9jMvFabWTJTmje7I uNfMV0cJEx8aILNEAEC37wTL5jddD5FbComRO3adFNRKGElhe7IpjAD2Zj1FwDVw 8X3kbu183bUWf6i+gaA+ZuR4zOWSLFMUYDU6YtyrPHTlerYdzTYHy0PHypGLhKPI dszDxZDCyleE7t2cdPyMfmJc0FRE127voosllZkVheNkcBxzR/0= =ANSh -----END PGP SIGNATURE----- Merge tag 'hwmon-for-v5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - Fix crash in w83627ehf driver seen with W83627DHG-P - Fix lockdep splat in acpi_power_meter driver - Fix xdpe12284 documentation Sphinx warnings * tag 'hwmon-for-v5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (w83627ehf) Fix crash seen with W83627DHG-P hwmon: (acpi_power_meter) Fix lockdep splat Documentation/hwmon: fix xdpe12284 Sphinx warnings |
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Linus Torvalds
|
fea630215a |
Devicetree fixes for 5.6, part 2:
A handful of fixes in DT bindings for MDIO bus, Allwinner CSI, OMAP HSMMC, and Tegra124 EMC. -----BEGIN PGP SIGNATURE----- iQJDBAABCgAuFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAl5QUO8QHHJvYmhAa2Vy bmVsLm9yZwAKCRD6+121jbxhw2TUD/jMnYhKz3GN52iJmMrfNI1HBssveKxid1Dx lHIE5WA2gZeAv3W5mVoHz20Hduejbyd7C4t93asJntKteSwjCHigO6x9Qxv7/mK5 jh7e7yi8cSZKgzgDVZFi3hOH4x9sBPzRwa6Zkazh1yYhkKKFEmtZ+uLzZ4t5Cv/e 2bUVv7H4z1ErTXsGdkOjA4KBOrYQWHP0kpSB4fvadt90/AkQ3btkr3ZJZensuyD0 wZy9JzkGEKoCyJiniLUmG4JZrJc2TKlME7hjt13SvqgwOOHHloLmVAiGRusexM/a b+yZbHsF9T3OpgUJR3Eyzo9vNcWiC3Q+yCkHxjU/NM9K3WoGxTvcVK8e8Nc4d2zg XPc2Xsy8f1GMY0sjpaYF/sngfr7BoJDuAruS9LuIXQW7Zux/dP1z5h0J2F02Ffwu nICVaG+wYz01vjqDb7GRDC9kVHY37BRZGh+Ht6UEhJaunbhH8j9h8/o6UzOBHjOg QWD//SgrspOUznGdHsN5cea9G0AeM/zCVaA/7XWx3AcjpwL12J8nHEG1Qbk3AG0w MJzoWdU34f/gvLbJkKryVsVclUeTDn9nijT1ykMk1PQB/QgU5ktP3GP32qiKNX4U +YmdYpFuNwwjWqA6B3CEVbd3CV40YOy/DLmcvuTRLux3mu873psulU5Yct4PKT4f kpPcoOCx =E5Fl -----END PGP SIGNATURE----- Merge tag 'devicetree-fixes-for-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes deom Rob Herring: "A handful of fixes in DT bindings for MDIO bus, Allwinner CSI, OMAP HSMMC, and Tegra124 EMC" * tag 'devicetree-fixes-for-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: media: csi: Fix clocks description dt-bindings: media: csi: Add interconnects properties dt-bindings: net: mdio: remove compatible string from example dt-bindings: memory-controller: Update example for Tegra124 EMC dt-bindings: mmc: omap-hsmmc: Fix SDIO interrupt |
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Linus Torvalds
|
591dd4c101 |
s390 updates for 5.6-rc3
- Remove ieee_emulation_warnings sysctl which is a dead code. - Avoid triggering rebuild of the kernel during make install. - Enable protected virtualization guest support in default configs. - Fix cio_ignore seq_file .next function to increase position index. And use kobj_to_dev instead of container_of in cio code. - Fix storage block address lists to contain absolute addresses in qdio code. - Few clang warnings and spelling fixes. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAl5RI0sACgkQjYWKoQLX FBig0Af/bJjFspbGFN+YEO+XM3AbURu0lHxq25r0EoSEc9acfS5nMrUk7OhNktND w+m/PoyOg8elB3LDkalz9IP6CZANSSoGV5aKyg3Wp06Wu//DdwAMJWqFOyosJ89z zVOSGgX3zHFarodS4suDPTEdDEcSMVVvqnz1A81dQD9QNWyVCutqYABj3OEittOD EBYchT7Qs/ObwbP+RaUa0swbrq11P8hZSAblbjkbuFpw45CdQ6rFoyJO1Tccuyh7 puNlPLpkDI15RNxC+vh+4NItcxPcIL+Qa0kltbQJLq7aq/UqLNF02vLjWluH4hG6 i6+ZzsIra5gdtdf2cPFiKo7EagpQ2w== =CRBt -----END PGP SIGNATURE----- Merge tag 's390-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Remove ieee_emulation_warnings sysctl which is a dead code. - Avoid triggering rebuild of the kernel during make install. - Enable protected virtualization guest support in default configs. - Fix cio_ignore seq_file .next function to increase position index. And use kobj_to_dev instead of container_of in cio code. - Fix storage block address lists to contain absolute addresses in qdio code. - Few clang warnings and spelling fixes. * tag 's390-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/qdio: fill SBALEs with absolute addresses s390/qdio: fill SL with absolute addresses s390: remove obsolete ieee_emulation_warnings s390: make 'install' not depend on vmlinux s390/kaslr: Fix casts in get_random s390/mm: Explicitly compare PAGE_DEFAULT_KEY against zero in storage_key_init_range s390/pkey/zcrypt: spelling s/crytp/crypt/ s390/cio: use kobj_to_dev() API s390/defconfig: enable CONFIG_PROTECTED_VIRTUALIZATION_GUEST s390/cio: cio_ignore_proc_seq_next should increase position index |
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Xiaoguang Wang
|
c7849be9cc |
io_uring: fix __io_iopoll_check deadlock in io_sq_thread
Since commit |
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Jozsef Kadlecsik
|
8af1c6fbd9 |
netfilter: ipset: Fix forceadd evaluation path
When the forceadd option is enabled, the hash:* types should find and replace
the first entry in the bucket with the new one if there are no reuseable
(deleted or timed out) entries. However, the position index was just not set
to zero and remained the invalid -1 if there were no reuseable entries.
Reported-by: syzbot+6a86565c74ebe30aea18@syzkaller.appspotmail.com
Fixes:
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Jozsef Kadlecsik
|
f66ee0410b |
netfilter: ipset: Fix "INFO: rcu detected stall in hash_xxx" reports
In the case of huge hash:* types of sets, due to the single spinlock of
a set the processing of the whole set under spinlock protection could take
too long.
There were four places where the whole hash table of the set was processed
from bucket to bucket under holding the spinlock:
- During resizing a set, the original set was locked to exclude kernel side
add/del element operations (userspace add/del is excluded by the
nfnetlink mutex). The original set is actually just read during the
resize, so the spinlocking is replaced with rcu locking of regions.
However, thus there can be parallel kernel side add/del of entries.
In order not to loose those operations a backlog is added and replayed
after the successful resize.
- Garbage collection of timed out entries was also protected by the spinlock.
In order not to lock too long, region locking is introduced and a single
region is processed in one gc go. Also, the simple timer based gc running
is replaced with a workqueue based solution. The internal book-keeping
(number of elements, size of extensions) is moved to region level due to
the region locking.
- Adding elements: when the max number of the elements is reached, the gc
was called to evict the timed out entries. The new approach is that the gc
is called just for the matching region, assuming that if the region
(proportionally) seems to be full, then the whole set does. We could scan
the other regions to check every entry under rcu locking, but for huge
sets it'd mean a slowdown at adding elements.
- Listing the set header data: when the set was defined with timeout
support, the garbage collector was called to clean up timed out entries
to get the correct element numbers and set size values. Now the set is
scanned to check non-timed out entries, without actually calling the gc
for the whole set.
Thanks to Florian Westphal for helping me to solve the SOFTIRQ-safe ->
SOFTIRQ-unsafe lock order issues during working on the patch.
Reported-by: syzbot+4b0e9d4ff3cf117837e5@syzkaller.appspotmail.com
Reported-by: syzbot+c27b8d5010f45c666ed1@syzkaller.appspotmail.com
Reported-by: syzbot+68a806795ac89df3aa1c@syzkaller.appspotmail.com
Fixes:
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Jan Kara
|
9db176bceb |
ext4: fix mount failure with quota configured as module
When CONFIG_QFMT_V2 is configured as a module, the test in
ext4_feature_set_ok() fails and so mount of filesystems with quota or
project features fails. Fix the test to use IS_ENABLED macro which
works properly even for modules.
Link: https://lore.kernel.org/r/20200221100835.9332-1-jack@suse.cz
Fixes:
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wangyan
|
8eedabfd66 |
jbd2: fix ocfs2 corrupt when clearing block group bits
I found a NULL pointer dereference in ocfs2_block_group_clear_bits(). The running environment: kernel version: 4.19 A cluster with two nodes, 5 luns mounted on two nodes, and do some file operations like dd/fallocate/truncate/rm on every lun with storage network disconnection. The fallocate operation on dm-23-45 caused an null pointer dereference. The information of NULL pointer dereference as follows: [577992.878282] JBD2: Error -5 detected when updating journal superblock for dm-23-45. [577992.878290] Aborting journal on device dm-23-45. ... [577992.890778] JBD2: Error -5 detected when updating journal superblock for dm-24-46. [577992.890908] __journal_remove_journal_head: freeing b_committed_data [577992.890916] (fallocate,88392,52):ocfs2_extend_trans:474 ERROR: status = -30 [577992.890918] __journal_remove_journal_head: freeing b_committed_data [577992.890920] (fallocate,88392,52):ocfs2_rotate_tree_right:2500 ERROR: status = -30 [577992.890922] __journal_remove_journal_head: freeing b_committed_data [577992.890924] (fallocate,88392,52):ocfs2_do_insert_extent:4382 ERROR: status = -30 [577992.890928] (fallocate,88392,52):ocfs2_insert_extent:4842 ERROR: status = -30 [577992.890928] __journal_remove_journal_head: freeing b_committed_data [577992.890930] (fallocate,88392,52):ocfs2_add_clusters_in_btree:4947 ERROR: status = -30 [577992.890933] __journal_remove_journal_head: freeing b_committed_data [577992.890939] __journal_remove_journal_head: freeing b_committed_data [577992.890949] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 [577992.890950] Mem abort info: [577992.890951] ESR = 0x96000004 [577992.890952] Exception class = DABT (current EL), IL = 32 bits [577992.890952] SET = 0, FnV = 0 [577992.890953] EA = 0, S1PTW = 0 [577992.890954] Data abort info: [577992.890955] ISV = 0, ISS = 0x00000004 [577992.890956] CM = 0, WnR = 0 [577992.890958] user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000f8da07a9 [577992.890960] [0000000000000020] pgd=0000000000000000 [577992.890964] Internal error: Oops: 96000004 [#1] SMP [577992.890965] Process fallocate (pid: 88392, stack limit = 0x00000000013db2fd) [577992.890968] CPU: 52 PID: 88392 Comm: fallocate Kdump: loaded Tainted: G W OE 4.19.36 #1 [577992.890969] Hardware name: Huawei TaiShan 2280 V2/BC82AMDD, BIOS 0.98 08/25/2019 [577992.890971] pstate: 60400009 (nZCv daif +PAN -UAO) [577992.891054] pc : _ocfs2_free_suballoc_bits+0x63c/0x968 [ocfs2] [577992.891082] lr : _ocfs2_free_suballoc_bits+0x618/0x968 [ocfs2] [577992.891084] sp : ffff0000c8e2b810 [577992.891085] x29: ffff0000c8e2b820 x28: 0000000000000000 [577992.891087] x27: 00000000000006f3 x26: ffffa07957b02e70 [577992.891089] x25: ffff807c59d50000 x24: 00000000000006f2 [577992.891091] x23: 0000000000000001 x22: ffff807bd39abc30 [577992.891093] x21: ffff0000811d9000 x20: ffffa07535d6a000 [577992.891097] x19: ffff000001681638 x18: ffffffffffffffff [577992.891098] x17: 0000000000000000 x16: ffff000080a03df0 [577992.891100] x15: ffff0000811d9708 x14: 203d207375746174 [577992.891101] x13: 73203a524f525245 x12: 20373439343a6565 [577992.891103] x11: 0000000000000038 x10: 0101010101010101 [577992.891106] x9 : ffffa07c68a85d70 x8 : 7f7f7f7f7f7f7f7f [577992.891109] x7 : 0000000000000000 x6 : 0000000000000080 [577992.891110] x5 : 0000000000000000 x4 : 0000000000000002 [577992.891112] x3 : ffff000001713390 x2 : 2ff90f88b1c22f00 [577992.891114] x1 : ffff807bd39abc30 x0 : 0000000000000000 [577992.891116] Call trace: [577992.891139] _ocfs2_free_suballoc_bits+0x63c/0x968 [ocfs2] [577992.891162] _ocfs2_free_clusters+0x100/0x290 [ocfs2] [577992.891185] ocfs2_free_clusters+0x50/0x68 [ocfs2] [577992.891206] ocfs2_add_clusters_in_btree+0x198/0x5e0 [ocfs2] [577992.891227] ocfs2_add_inode_data+0x94/0xc8 [ocfs2] [577992.891248] ocfs2_extend_allocation+0x1bc/0x7a8 [ocfs2] [577992.891269] ocfs2_allocate_extents+0x14c/0x338 [ocfs2] [577992.891290] __ocfs2_change_file_space+0x3f8/0x610 [ocfs2] [577992.891309] ocfs2_fallocate+0xe4/0x128 [ocfs2] [577992.891316] vfs_fallocate+0x11c/0x250 [577992.891317] ksys_fallocate+0x54/0x88 [577992.891319] __arm64_sys_fallocate+0x28/0x38 [577992.891323] el0_svc_common+0x78/0x130 [577992.891325] el0_svc_handler+0x38/0x78 [577992.891327] el0_svc+0x8/0xc My analysis process as follows: ocfs2_fallocate __ocfs2_change_file_space ocfs2_allocate_extents ocfs2_extend_allocation ocfs2_add_inode_data ocfs2_add_clusters_in_btree ocfs2_insert_extent ocfs2_do_insert_extent ocfs2_rotate_tree_right ocfs2_extend_rotate_transaction ocfs2_extend_trans jbd2_journal_restart jbd2__journal_restart /* handle->h_transaction is NULL, * is_handle_aborted(handle) is true */ handle->h_transaction = NULL; start_this_handle return -EROFS; ocfs2_free_clusters _ocfs2_free_clusters _ocfs2_free_suballoc_bits ocfs2_block_group_clear_bits ocfs2_journal_access_gd __ocfs2_journal_access jbd2_journal_get_undo_access /* I think jbd2_write_access_granted() will * return true, because do_get_write_access() * will return -EROFS. */ if (jbd2_write_access_granted(...)) return 0; do_get_write_access /* handle->h_transaction is NULL, it will * return -EROFS here, so do_get_write_access() * was not called. */ if (is_handle_aborted(handle)) return -EROFS; /* bh2jh(group_bh) is NULL, caused NULL pointer dereference */ undo_bg = (struct ocfs2_group_desc *) bh2jh(group_bh)->b_committed_data; If handle->h_transaction == NULL, then jbd2_write_access_granted() does not really guarantee that journal_head will stay around, not even speaking of its b_committed_data. The bh2jh(group_bh) can be removed after ocfs2_journal_access_gd() and before call "bh2jh(group_bh)->b_committed_data". So, we should move is_handle_aborted() check from do_get_write_access() into jbd2_journal_get_undo_access() and jbd2_journal_get_write_access() before the call to jbd2_write_access_granted(). Link: https://lore.kernel.org/r/f72a623f-b3f1-381a-d91d-d22a1c83a336@huawei.com Signed-off-by: Yan Wang <wangyan122@huawei.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jun Piao <piaojun@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: stable@kernel.org |
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Eric Biggers
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cb85f4d23f |
ext4: fix race between writepages and enabling EXT4_EXTENTS_FL
If EXT4_EXTENTS_FL is set on an inode while ext4_writepages() is running
on it, the following warning in ext4_add_complete_io() can be hit:
WARNING: CPU: 1 PID: 0 at fs/ext4/page-io.c:234 ext4_put_io_end_defer+0xf0/0x120
Here's a minimal reproducer (not 100% reliable) (root isn't required):
while true; do
sync
done &
while true; do
rm -f file
touch file
chattr -e file
echo X >> file
chattr +e file
done
The problem is that in ext4_writepages(), ext4_should_dioread_nolock()
(which only returns true on extent-based files) is checked once to set
the number of reserved journal credits, and also again later to select
the flags for ext4_map_blocks() and copy the reserved journal handle to
ext4_io_end::handle. But if EXT4_EXTENTS_FL is being concurrently set,
the first check can see dioread_nolock disabled while the later one can
see it enabled, causing the reserved handle to unexpectedly be NULL.
Since changing EXT4_EXTENTS_FL is uncommon, and there may be other races
related to doing so as well, fix this by synchronizing changing
EXT4_EXTENTS_FL with ext4_writepages() via the existing
s_writepages_rwsem (previously called s_journal_flag_rwsem).
This was originally reported by syzbot without a reproducer at
https://syzkaller.appspot.com/bug?extid=2202a584a00fffd19fbf,
but now that dioread_nolock is the default I also started seeing this
when running syzkaller locally.
Link: https://lore.kernel.org/r/20200219183047.47417-3-ebiggers@kernel.org
Reported-by: syzbot+2202a584a00fffd19fbf@syzkaller.appspotmail.com
Fixes:
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Eric Biggers
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bbd55937de |
ext4: rename s_journal_flag_rwsem to s_writepages_rwsem
In preparation for making s_journal_flag_rwsem synchronize ext4_writepages() with changes to both the EXTENTS and JOURNAL_DATA flags (rather than just JOURNAL_DATA as it does currently), rename it to s_writepages_rwsem. Link: https://lore.kernel.org/r/20200219183047.47417-2-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz> Cc: stable@kernel.org |
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Suraj Jitindar Singh
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7c990728b9 |
ext4: fix potential race between s_flex_groups online resizing and access
During an online resize an array of s_flex_groups structures gets replaced so it can get enlarged. If there is a concurrent access to the array and this memory has been reused then this can lead to an invalid memory access. The s_flex_group array has been converted into an array of pointers rather than an array of structures. This is to ensure that the information contained in the structures cannot get out of sync during a resize due to an accessor updating the value in the old structure after it has been copied but before the array pointer is updated. Since the structures them- selves are no longer copied but only the pointers to them this case is mitigated. Link: https://bugzilla.kernel.org/show_bug.cgi?id=206443 Link: https://lore.kernel.org/r/20200221053458.730016-4-tytso@mit.edu Signed-off-by: Suraj Jitindar Singh <surajjs@amazon.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org |
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Linus Torvalds
|
54dedb5b57 |
xen: branch for v5.6-rc3
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Merge tag 'for-linus-5.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Two small fixes for Xen:
- a fix to avoid warnings with new gcc
- a fix for incorrectly disabled interrupts when calling
_cond_resched()"
* tag 'for-linus-5.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: Enable interrupts when calling _cond_resched()
x86/xen: Distribute switch variables for initialization
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Linus Torvalds
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63f01d852c |
arm64 fixes for -rc3
- Fix regression in malloc() caused by ignored address tags in brk() - Add missing brackets around argument to untagged_addr() macro - Fix clang build when using binutils assembler - Fix silly typo in virtual memory map documentation -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl5P2VIQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNNn9CACN/C0aTsRT+22ABPahHcnnyQgsETMOS3Up M/edlPMUI5qK8IcIBt/PKswzBKlwMpI/pCWxfn/kwdq9u0ho3IASnqtaBVcm7yjt d/4DX5GhwJBdv6q6N+vjacrqs3e/xCiDiWqLvhEVZXTFuDxNMziCfloP6sDBxmYu E0+zuZnMbVemgV7USo+7QXMeNb7kFwP6fmJN0cr/FG7N4orms2zygs6mhg/ogpkH zdl7Ze6DdC5+ChLpLhGXEuA2+Gyv+tWoE7A1EXnTGSEEQXmH7FkaZOJxAuSbWgw6 8Gcul+0JSHRBHN876oqS9aSr88ZiZDZkccC2gLW2Off6vvv8Rgog =ehao -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "It's all straightforward apart from the changes to mmap()/mremap() in relation to their handling of address arguments from userspace with non-zero tag bits in the upper byte. The change to brk() is necessary to fix a nasty user-visible regression in malloc(), but we tightened up mmap() and mremap() at the same time because they also allow the user to create virtual aliases by accident. It's much less likely than brk() to matter in practice, but enforcing the principle of "don't permit the creation of mappings using tagged addresses" leads to a straightforward ABI without having to worry about the "but what if a crazy program did foo?" aspect of things. Summary: - Fix regression in malloc() caused by ignored address tags in brk() - Add missing brackets around argument to untagged_addr() macro - Fix clang build when using binutils assembler - Fix silly typo in virtual memory map documentation" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: mm: Avoid creating virtual address aliases in brk()/mmap()/mremap() docs: arm64: fix trivial spelling enought to enough in memory.rst arm64: memory: Add missing brackets to untagged_addr() macro arm64: lse: Fix LSE atomics with LLVM |
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Linus Torvalds
|
2865936259 |
powerpc fixes for 5.6 #3
- Three fixes for the recently added VMAP_STACK on 32-bit.
- Three fixes related to hugepages on 8xx (32-bit).
- A fix for a bug in our transactional memory handling that could lead to a
kernel crash if we saw a page fault during signal delivery.
- A fix for a deadlock in our PCI EEH (Enhanced Error Handling) code.
- A couple of other minor fixes.
Thanks to:
Christophe Leroy, Erhard F, Frederic Barrat, Gustavo Luiz Duarte, Larry
Finger, Leonardo Bras, Oliver O'Halloran, Sam Bobroff.
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Merge tag 'powerpc-5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Some more powerpc fixes for 5.6. This is two weeks worth as I was out
sick last week:
- Three fixes for the recently added VMAP_STACK on 32-bit.
- Three fixes related to hugepages on 8xx (32-bit).
- A fix for a bug in our transactional memory handling that could
lead to a kernel crash if we saw a page fault during signal
delivery.
- A fix for a deadlock in our PCI EEH (Enhanced Error Handling) code.
- A couple of other minor fixes.
Thanks to: Christophe Leroy, Erhard F, Frederic Barrat, Gustavo Luiz
Duarte, Larry Finger, Leonardo Bras, Oliver O'Halloran, Sam Bobroff"
* tag 'powerpc-5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/entry: Fix an #if which should be an #ifdef in entry_32.S
powerpc/xmon: Fix whitespace handling in getstring()
powerpc/6xx: Fix power_save_ppc32_restore() with CONFIG_VMAP_STACK
powerpc/chrp: Fix enter_rtas() with CONFIG_VMAP_STACK
powerpc/32s: Fix DSI and ISI exceptions for CONFIG_VMAP_STACK
powerpc/tm: Fix clearing MSR[TS] in current when reclaiming on signal delivery
powerpc/8xx: Fix clearing of bits 20-23 in ITLB miss
powerpc/hugetlb: Fix 8M hugepages on 8xx
powerpc/hugetlb: Fix 512k hugepages on 8xx with 16k page size
powerpc/eeh: Fix deadlock handling dead PHB
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Linus Torvalds
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0c0ddd6ae4 |
linux-watchdog 5.6-rc3 tag
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Merge tag 'linux-watchdog-5.6-rc3' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
- mtk_wdt needs RESET_CONTROLLER to build
- da9062 driver fixes:
- fix power management ops
- do not ping the hw during stop()
- add dependency on I2C
* tag 'linux-watchdog-5.6-rc3' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: da9062: Add dependency on I2C
watchdog: da9062: fix power management ops
watchdog: da9062: do not ping the hw during stop()
watchdog: fix mtk_wdt.c RESET_CONTROLLER build error
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Linus Torvalds
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bb65619e97 |
Char/Misc fixes for 5.6-rc3
Here are some small char/misc driver fixes for 5.6-rc3. Also included in here are some updates for some documentation files that I seem to be maintaining these days. The driver fixes are: - small fixes for the habanalabs driver - fsi driver bugfix All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXk+9bw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymcoQCffSD3qJ6cVclyTHAUOtxJHuFLz3sAn0X6f77F u3UE5eTXLGNrt0u8Ab0i =9dXU -----END PGP SIGNATURE----- Merge tag 'char-misc-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small char/misc driver fixes for 5.6-rc3. Also included in here are some updates for some documentation files that I seem to be maintaining these days. The driver fixes are: - small fixes for the habanalabs driver - fsi driver bugfix All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Documentation/process: Swap out the ambassador for Canonical habanalabs: patched cb equals user cb in device memset habanalabs: do not halt CoreSight during hard reset habanalabs: halt the engines before hard-reset MAINTAINERS: remove unnecessary ':' characters fsi: aspeed: add unspecified HAS_IOMEM dependency COPYING: state that all contributions really are covered by this file Documentation/process: Change Microsoft contact for embargoed hardware issues embargoed-hardware-issues: drop Amazon contact as the email address now bounces Documentation/process: Add Arm contact for embargoed HW issues |
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Linus Torvalds
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e5553ac71e |
Staging driver fixes for 5.6-rc3
Here are some small staging driver fixes for 5.6-rc3, along with the removal of an unused/unneeded driver as well. The android vsoc driver is not needed anymore by anyone, so it was removed. The other driver fixes are: - ashmem bugfixes - greybus audio driver bugfix - wireless driver bugfixes and tiny cleanups to error paths All of these have been in linux-next for a while now with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXk++hg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymvngCfcgS9D+FY+V0VIQlt+39h9U7cQeMAn0P0EepL FDc7GtK937axJBesRE+J =rVJM -----END PGP SIGNATURE----- Merge tag 'staging-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fixes from Greg KH: "Here are some small staging driver fixes for 5.6-rc3, along with the removal of an unused/unneeded driver as well. The android vsoc driver is not needed anymore by anyone, so it was removed. The other driver fixes are: - ashmem bugfixes - greybus audio driver bugfix - wireless driver bugfixes and tiny cleanups to error paths All of these have been in linux-next for a while now with no reported issues" * tag 'staging-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: rtl8723bs: Remove unneeded goto statements staging: rtl8188eu: Remove some unneeded goto statements staging: rtl8723bs: Fix potential overuse of kernel memory staging: rtl8188eu: Fix potential overuse of kernel memory staging: rtl8723bs: Fix potential security hole staging: rtl8188eu: Fix potential security hole staging: greybus: use after free in gb_audio_manager_remove_all() staging: android: Delete the 'vsoc' driver staging: rtl8723bs: fix copy of overlapping memory staging: android: ashmem: Disallow ashmem memory from being remapped staging: vt6656: fix sign of rx_dbm to bb_pre_ed_rssi. |
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Linus Torvalds
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ef11f1b76a |
TTY/Serial driver fixes for 5.6-rc3
Here are a number of small tty and serial driver fixes for 5.6-rc3 that
resolve a bunch of reported issues.
They are:
- vt selection and ioctl fixes
- serdev bugfix
- atmel serial driver fixes
- qcom serial driver fixes
- other minor serial driver fixes
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are a number of small tty and serial driver fixes for 5.6-rc3
that resolve a bunch of reported issues.
They are:
- vt selection and ioctl fixes
- serdev bugfix
- atmel serial driver fixes
- qcom serial driver fixes
- other minor serial driver fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
vt: selection, close sel_buffer race
vt: selection, handle pending signals in paste_selection
serial: cpm_uart: call cpm_muram_init before registering console
tty: serial: qcom_geni_serial: Fix RX cancel command failure
serial: 8250: Check UPF_IRQ_SHARED in advance
tty: serial: imx: setup the correct sg entry for tx dma
vt: vt_ioctl: fix race in VT_RESIZEX
vt: fix scrollback flushing on background consoles
tty: serial: tegra: Handle RX transfer in PIO mode if DMA wasn't started
tty/serial: atmel: manage shutdown in case of RS485 or ISO7816 mode
serdev: ttyport: restore client ops on deregistration
serial: ar933x_uart: set UART_CS_{RX,TX}_READY_ORIDE
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Linus Torvalds
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cee853e825 |
USB fixes for 5.6-rc3
Here are a number of small USB driver fixes for 5.6-rc3. Included in here are: - MAINTAINER file updates - USB gadget driver fixes - usb core quirk additions and fixes for regressions - xhci driver fixes - usb serial driver id additions and fixes - thunderbolt bugfix Thunderbolt patches come in through here now that USB4 is really thunderbolt. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXk+/zw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynQywCeOlklNLcTKw/JkbsbtMlY/yTl4W8AoLLoEgSy GyUV8E67wZNdXLKH+n14 =o97t -----END PGP SIGNATURE----- Merge tag 'usb-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/Thunderbolt fixes from Greg KH: "Here are a number of small USB driver fixes for 5.6-rc3. Included in here are: - MAINTAINER file updates - USB gadget driver fixes - usb core quirk additions and fixes for regressions - xhci driver fixes - usb serial driver id additions and fixes - thunderbolt bugfix Thunderbolt patches come in through here now that USB4 is really thunderbolt. All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (34 commits) USB: misc: iowarrior: add support for the 100 device thunderbolt: Prevent crash if non-active NVMem file is read usb: gadget: udc-xilinx: Fix xudc_stop() kernel-doc format USB: misc: iowarrior: add support for the 28 and 28L devices USB: misc: iowarrior: add support for 2 OEMed devices USB: Fix novation SourceControl XL after suspend xhci: Fix memory leak when caching protocol extended capability PSI tables - take 2 Revert "xhci: Fix memory leak when caching protocol extended capability PSI tables" MAINTAINERS: Sort entries in database for THUNDERBOLT usb: dwc3: debug: fix string position formatting mixup with ret and len usb: gadget: serial: fix Tx stall after buffer overflow usb: gadget: ffs: ffs_aio_cancel(): Save/restore IRQ flags usb: dwc2: Fix SET/CLEAR_FEATURE and GET_STATUS flows usb: dwc2: Fix in ISOC request length checking usb: gadget: composite: Support more than 500mA MaxPower usb: gadget: composite: Fix bMaxPower for SuperSpeedPlus usb: gadget: u_audio: Fix high-speed max packet size usb: dwc3: gadget: Check for IOC/LST bit in TRB->ctrl fields USB: core: clean up endpoint-descriptor parsing USB: quirks: blacklist duplicate ep on Sound Devices USBPre2 ... |
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Linus Torvalds
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88f8bbfa94 |
drm fixes for 5.6-rc3
core:
- Allow only 1 rotation argument, and allow 0 rotation in video cmdline.
i915:
- Workaround missing Display Stream Compression (DSC) state readout by
forcing modeset when its enabled at probe
- Fix EHL port clock voltage level requirements
- Fix queuing retire workers on the virtual engine
- Fix use of partially initialized waiters
- Stop using drm_pci_alloc/drm_pci/free
- Fix rewind of RING_TAIL by forcing a context reload
- Fix locking on resetting ring->head
- Propagate our bug filing URL change to stable kernels
panfrost:
- Small compiler warning fix for panfrost.
- Fix when using performance counters in panfrost when using per fd address space.
sun4xi:
- Fix dt binding
nouveau:
- tu11x modesetting fix
- ACR/GR firmware support for tu11x (fw is public now)
msm:
- fix UBWC on GPU and display side for sc7180
- fix DSI suspend/resume issue encountered on sc7180
- fix some breakage on so called "linux-android" devices
(fallout from sc7180/a618 support, not seen earlier
due to bootloader/firmware differences)
- couple other misc fixes
amdgpu:
- HDCP fixes
- xclk fix for raven
- GFXOFF fixes
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Merge tag 'drm-fixes-2020-02-21' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Varied fixes for rc3.
i915 is the largest, they are seeing some ACPI problems with their CI
which hopefully get solved soon [1].
msm has a bunch of fixes for new hw added in the merge, a bunch of
amdgpu fixes, and nouveau adds support for some new firmwares for
turing tu11x GPUs that were just released into linux-firmware by
nvidia, they operate the same as the ones we already have for tu10x so
should be fine to hook up.
Otherwise it's just misc fixes for panfrost and sun4i.
core:
- Allow only one rotation argument, and allow zero rotation in video
cmdline.
i915:
- Workaround missing Display Stream Compression (DSC) state readout
by forcing modeset when its enabled at probe
- Fix EHL port clock voltage level requirements
- Fix queuing retire workers on the virtual engine
- Fix use of partially initialized waiters
- Stop using drm_pci_alloc/drm_pci/free
- Fix rewind of RING_TAIL by forcing a context reload
- Fix locking on resetting ring->head
- Propagate our bug filing URL change to stable kernels
panfrost:
- Small compiler warning fix for panfrost.
- Fix when using performance counters in panfrost when using per fd
address space.
sun4xi:
- Fix dt binding
nouveau:
- tu11x modesetting fix
- ACR/GR firmware support for tu11x (fw is public now)
msm:
- fix UBWC on GPU and display side for sc7180
- fix DSI suspend/resume issue encountered on sc7180
- fix some breakage on so called "linux-android" devices
(fallout from sc7180/a618 support, not seen earlier due to
bootloader/firmware differences)
- couple other misc fixes
amdgpu:
- HDCP fixes
- xclk fix for raven
- GFXOFF fixes"
[1] The Intel suspend testing should now be fixed by commit
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