| Age | Commit message (Collapse) | Author |
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syzbot was able to trigger this warning from new_slab()
/*
* All existing users of the __GFP_NOFAIL are blockable, so warn
* of any new users that actually require GFP_NOWAIT
*/
if (WARN_ON_ONCE(!can_direct_reclaim))
goto fail;
Indeed, we should use __GFP_NOFAIL if direct reclaim is possible.
Hopefully in the future we will be able to use SLAB_NOFAILSLAB
option so that syzbot can benefit from full ref_tracker
even in the presence of memory fault injections.
WARNING: CPU: 0 PID: 13 at mm/page_alloc.c:5081 __alloc_pages_slowpath.constprop.0+0x1b7b/0x20d0 mm/page_alloc.c:5081 mm/page_alloc.c:5081
Modules linked in:
CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__alloc_pages_slowpath.constprop.0+0x1b7b/0x20d0 mm/page_alloc.c:5081 mm/page_alloc.c:5081
Code: 90 08 00 00 48 81 c7 d8 04 00 00 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 84 f0 ea ff ff e8 3d 82 09 00 e9 e6 ea ff ff 4d 89 fd <0f> 0b 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 30 48 c1 ea 03 80
RSP: 0018:ffffc90000d272b8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88813fffc300 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88813fffc348
RBP: ffff88813fffc300 R08: 00000000000013dc R09: 00000000000013c8
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90000d274e8 R14: dffffc0000000000 R15: ffffc90000d274e8
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffefe6000f8 CR3: 000000001d21e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__alloc_pages+0x412/0x500 mm/page_alloc.c:5382 mm/page_alloc.c:5382
alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191 mm/mempolicy.c:2191
alloc_slab_page mm/slub.c:1793 [inline]
allocate_slab mm/slub.c:1938 [inline]
alloc_slab_page mm/slub.c:1793 [inline] mm/slub.c:1993
allocate_slab mm/slub.c:1938 [inline] mm/slub.c:1993
new_slab+0x349/0x4a0 mm/slub.c:1993 mm/slub.c:1993
___slab_alloc+0x918/0xfe0 mm/slub.c:3022 mm/slub.c:3022
__slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109 mm/slub.c:3109
slab_alloc_node mm/slub.c:3200 [inline]
slab_alloc mm/slub.c:3242 [inline]
slab_alloc_node mm/slub.c:3200 [inline] mm/slub.c:3259
slab_alloc mm/slub.c:3242 [inline] mm/slub.c:3259
kmem_cache_alloc_trace+0x289/0x2c0 mm/slub.c:3259 mm/slub.c:3259
kmalloc include/linux/slab.h:590 [inline]
kzalloc include/linux/slab.h:724 [inline]
kmalloc include/linux/slab.h:590 [inline] lib/ref_tracker.c:74
kzalloc include/linux/slab.h:724 [inline] lib/ref_tracker.c:74
ref_tracker_alloc+0xe1/0x430 lib/ref_tracker.c:74 lib/ref_tracker.c:74
netdev_tracker_alloc include/linux/netdevice.h:3855 [inline]
dev_hold_track include/linux/netdevice.h:3872 [inline]
netdev_tracker_alloc include/linux/netdevice.h:3855 [inline] net/core/dst.c:52
dev_hold_track include/linux/netdevice.h:3872 [inline] net/core/dst.c:52
dst_init+0xe0/0x520 net/core/dst.c:52 net/core/dst.c:52
dst_alloc+0x16b/0x1f0 net/core/dst.c:96 net/core/dst.c:96
rt_dst_alloc+0x73/0x450 net/ipv4/route.c:1614 net/ipv4/route.c:1614
ip_route_input_mc net/ipv4/route.c:1720 [inline]
ip_route_input_mc net/ipv4/route.c:1720 [inline] net/ipv4/route.c:2465
ip_route_input_rcu.part.0+0x4fe/0xcc0 net/ipv4/route.c:2465 net/ipv4/route.c:2465
ip_route_input_rcu net/ipv4/route.c:2420 [inline]
ip_route_input_rcu net/ipv4/route.c:2420 [inline] net/ipv4/route.c:2416
ip_route_input_noref+0x1b8/0x2a0 net/ipv4/route.c:2416 net/ipv4/route.c:2416
ip_rcv_finish_core.constprop.0+0x288/0x1e90 net/ipv4/ip_input.c:354 net/ipv4/ip_input.c:354
ip_rcv_finish+0x135/0x2f0 net/ipv4/ip_input.c:427 net/ipv4/ip_input.c:427
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
NF_HOOK include/linux/netfilter.h:307 [inline] net/ipv4/ip_input.c:540
NF_HOOK include/linux/netfilter.h:301 [inline] net/ipv4/ip_input.c:540
ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:540 net/ipv4/ip_input.c:540
__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5350 net/core/dev.c:5350
__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5464 net/core/dev.c:5464
process_backlog+0x2a5/0x6c0 net/core/dev.c:5796 net/core/dev.c:5796
__napi_poll+0xaf/0x440 net/core/dev.c:6364 net/core/dev.c:6364
napi_poll net/core/dev.c:6431 [inline]
napi_poll net/core/dev.c:6431 [inline] net/core/dev.c:6518
net_rx_action+0x801/0xb40 net/core/dev.c:6518 net/core/dev.c:6518
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558 kernel/softirq.c:558
run_ksoftirqd kernel/softirq.c:921 [inline]
run_ksoftirqd kernel/softirq.c:921 [inline] kernel/softirq.c:913
run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 kernel/softirq.c:913
smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kernel/smpboot.c:164
kthread+0x405/0x4f0 kernel/kthread.c:327 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 arch/x86/entry/entry_64.S:295
Fixes: 4e66934eaadc ("lib: add reference counting tracking infrastructure")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add arm64 Hyper-V vPCI support by implementing the arch specific
interfaces. Introduce an IRQ domain and chip specific to Hyper-v vPCI that
is based on SPIs. The IRQ domain parents itself to the arch GIC IRQ domain
for basic vector management.
[bhelgaas: squash in fix from Yang Li <yang.lee@linux.alibaba.com>:
https://lore.kernel.org/r/20220112003324.62755-1-yang.lee@linux.alibaba.com]
Link: https://lore.kernel.org/r/1641411156-31705-3-git-send-email-sunilmut@linux.microsoft.com
Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
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Encapsulate arch dependencies in Hyper-V vPCI through a set of
arch-dependent interfaces. Adding these arch specific interfaces will
allow for an implementation for other architectures, such as arm64.
There are no functional changes expected from this patch.
Link: https://lore.kernel.org/r/1641411156-31705-2-git-send-email-sunilmut@linux.microsoft.com
Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
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It appears that there are some buffer overflows in EVT_TRANSACTION.
This happens because the length parameters that are passed to memcpy
come directly from skb->data and are not guarded in any way.
Signed-off-by: Jordy Zomer <jordy@pwning.systems>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Don't forget to release the device in sock_timestamping_bind_phc() after
it was used to get the vclock indices.
Fixes: d463126e23f1 ("net: sock: extend SO_TIMESTAMPING for PHC binding")
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Cc: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 9ed319e411915e882bb4ed99be3ae78667a70022.
We can already post process a nvmem cell value in a particular driver.
Instead of having yet another place to convert the values, the post
processing hook of the nvmem provider should be used in this case.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use down_read_nested() and down_write_nested() when taking the
ctrl->reset_lock rw-sem, passing the number of PCIe hotplug controllers in
the path to the PCI root bus as lock subclass parameter.
This fixes the following false-positive lockdep report when unplugging a
Lenovo X1C8 from a Lenovo 2nd gen TB3 dock:
pcieport 0000:06:01.0: pciehp: Slot(1): Link Down
pcieport 0000:06:01.0: pciehp: Slot(1): Card not present
============================================
WARNING: possible recursive locking detected
5.16.0-rc2+ #621 Not tainted
--------------------------------------------
irq/124-pciehp/86 is trying to acquire lock:
ffff8e5ac4299ef8 (&ctrl->reset_lock){.+.+}-{3:3}, at: pciehp_check_presence+0x23/0x80
but task is already holding lock:
ffff8e5ac4298af8 (&ctrl->reset_lock){.+.+}-{3:3}, at: pciehp_ist+0xf3/0x180
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&ctrl->reset_lock);
lock(&ctrl->reset_lock);
*** DEADLOCK ***
May be due to missing lock nesting notation
3 locks held by irq/124-pciehp/86:
#0: ffff8e5ac4298af8 (&ctrl->reset_lock){.+.+}-{3:3}, at: pciehp_ist+0xf3/0x180
#1: ffffffffa3b024e8 (pci_rescan_remove_lock){+.+.}-{3:3}, at: pciehp_unconfigure_device+0x31/0x110
#2: ffff8e5ac1ee2248 (&dev->mutex){....}-{3:3}, at: device_release_driver+0x1c/0x40
stack backtrace:
CPU: 4 PID: 86 Comm: irq/124-pciehp Not tainted 5.16.0-rc2+ #621
Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET30W (1.20 ) 08/26/2021
Call Trace:
<TASK>
dump_stack_lvl+0x59/0x73
__lock_acquire.cold+0xc5/0x2c6
lock_acquire+0xb5/0x2b0
down_read+0x3e/0x50
pciehp_check_presence+0x23/0x80
pciehp_runtime_resume+0x5c/0xa0
device_for_each_child+0x45/0x70
pcie_port_device_runtime_resume+0x20/0x30
pci_pm_runtime_resume+0xa7/0xc0
__rpm_callback+0x41/0x110
rpm_callback+0x59/0x70
rpm_resume+0x512/0x7b0
__pm_runtime_resume+0x4a/0x90
__device_release_driver+0x28/0x240
device_release_driver+0x26/0x40
pci_stop_bus_device+0x68/0x90
pci_stop_bus_device+0x2c/0x90
pci_stop_and_remove_bus_device+0xe/0x20
pciehp_unconfigure_device+0x6c/0x110
pciehp_disable_slot+0x5b/0xe0
pciehp_handle_presence_or_link_change+0xc3/0x2f0
pciehp_ist+0x179/0x180
This lockdep warning is triggered because with Thunderbolt, hotplug ports
are nested. When removing multiple devices in a daisy-chain, each hotplug
port's reset_lock may be acquired recursively. It's never the same lock, so
the lockdep splat is a false positive.
Because locks at the same hierarchy level are never acquired recursively, a
per-level lockdep class is sufficient to fix the lockdep warning.
The choice to use one lockdep subclass per pcie-hotplug controller in the
path to the root-bus was made to conserve class keys because their number
is limited and the complexity grows quadratically with number of keys
according to Documentation/locking/lockdep-design.rst.
Link: https://lore.kernel.org/linux-pci/20190402021933.GA2966@mit.edu/
Link: https://lore.kernel.org/linux-pci/de684a28-9038-8fc6-27ca-3f6f2f6400d7@redhat.com/
Link: https://lore.kernel.org/r/20211217141709.379663-1-hdegoede@redhat.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=208855
Reported-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org
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The vga16fb framebuffer driver only supports Enhanced Graphics Adapter
(EGA) and Video Graphics Array (VGA) 16 color graphic cards.
But it doesn't check if the adapter is one of those or if a VGA16 mode
is used. This means that the driver will be probed even if a VESA BIOS
Extensions (VBE) or Graphics Output Protocol (GOP) interface is used.
This issue has been present for a long time but it was only exposed by
commit d391c5827107 ("drivers/firmware: move x86 Generic System
Framebuffers support") since the platform device registration to match
the {vesa,efi}fb drivers is done later as a consequence of that change.
All non-x86 architectures though treat orig_video_isVGA as a boolean so
only do the supported video mode check for x86 and not for other arches.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215001
Fixes: d391c5827107 ("drivers/firmware: move x86 Generic System Framebuffers support")
Reported-by: Kris Karas <bugs-a21@moonlit-rail.com>
Cc: <stable@vger.kernel.org> # 5.15.x
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Kris Karas <bugs-a21@moonlit-rail.com>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220110095625.278836-3-javierm@redhat.com
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Battery status on Elan tablet driver is reported for the HP ENVY x360
15t-dr100. There is no separate battery for the Elan controller resulting in a
battery level report of 0% or 1% depending on whether a stylus has interacted
with the screen. These low battery level reports causes a variety of bad
behavior in desktop environments. This patch adds the appropriate quirk to
indicate that the batery status is unused for this target.
Cc: stable@vger.kernel.org
Signed-off-by: Karl Kurbjun <kkurbjun@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add more protocol and client ID which can be used in device
tree properties.
Signed-off-by: Huang Yiwei <quic_hyiwei@quicinc.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Use IRQF_NO_SUSPEND flag instead of enable_irq_wake to
support interrupt wake up from suspend.
Signed-off-by: Huang Yiwei <quic_hyiwei@quicinc.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Since hardware is supporting multiple IPCC instance,
use ipcc_%d instead of ipcc as the irq name to support
in driver.
Signed-off-by: Huang Yiwei <quic_hyiwei@quicinc.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Dynamic alloc for channel arrangement instead of static alloced
array, it is more flexible and can reduce memory usage.
Signed-off-by: Huang Yiwei <quic_hyiwei@quicinc.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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The Polarfire SoC is currently using two different compatible string
prefixes. Fix this by changing "polarfire-soc-*" strings to "mpfs-*" in
its system controller in order to match the compatible string used in
the soc binding and device tree.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Commit c45ded7e1135 ("mailbox: pcc: Add support for PCCT extended PCC
subspaces(type 3/4)") enabled the type3/4 of PCCT, but the change in
pcc_mbox_irq breaks the other PCC subtypes.
The kernel reports a warning on an Ampere eMag server
-->8
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.16.0-rc4 #127
Hardware name: MiTAC RAPTOR EV-883832-X3-0001/RAPTOR, BIOS 0.14 02/22/2019
Call trace:
dump_backtrace+0x0/0x200
show_stack+0x20/0x30
dump_stack_lvl+0x68/0x84
dump_stack+0x18/0x34
__report_bad_irq+0x54/0x17c
note_interrupt+0x330/0x428
handle_irq_event_percpu+0x90/0x98
handle_irq_event+0x4c/0x148
handle_fasteoi_irq+0xc4/0x188
generic_handle_domain_irq+0x44/0x68
gic_handle_irq+0x84/0x2ec
call_on_irq_stack+0x28/0x34
do_interrupt_handler+0x88/0x90
el1_interrupt+0x48/0xb0
el1h_64_irq_handler+0x18/0x28
el1h_64_irq+0x7c/0x80
Fixes: c45ded7e1135 ("mailbox: pcc: Add support for PCCT extended PCC subspaces(type 3/4)")
Reported-by: Justin He <justin.he@arm.com>
Tested-by: Justin He <justin.he@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Smatch static checker warns:
| drivers/mailbox/pcc.c:292 pcc_mbox_request_channel()
| error: uninitialized symbol 'dev'.
Fix the same by using pr_err instead of dev_err as the variable 'dev'
is uninitialized at that stage.
Fixes: ce028702ddbc ("mailbox: pcc: Move bulk of PCCT parsing into pcc_mbox_probe")
Cc: Jassi Brar <jassisinghbrar@gmail.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Fix following coccicheck warning:
WARNING: Function "for_each_child_of_node"
should have of_node_put() before return.
Early exits from for_each_child_of_node should decrement the
node reference counter.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Fix following coccicheck warning:
WARNING: Function "for_each_available_child_of_node"
should have of_node_put() before return.
Early exits from for_each_available_child_of_node should decrement the
node reference counter.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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The devm_kzalloc() function does not return error pointers, it returns
NULL on failure.
Fixes: 97961f78e8bc ("mailbox: imx: support i.MX8ULP S4 MU")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Convert hi3660 struct comments to kernel-doc notation and fix
other kernel-doc warnings:
drivers/mailbox/hi3660-mailbox.c:47: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Hi3660 mailbox channel information
drivers/mailbox/hi3660-mailbox.c:62: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Hi3660 mailbox controller data
hi3660-mailbox.c:53: warning: contents before sections
hi3660-mailbox.c:67: warning: contents before sections
Fixes: 41c0e939d70d ("mailbox: Add support for Hi3660 mailbox")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Ruyi Wang <wangruyi@huawei.com>
Cc: Kaihua Zhong <zhongkaihua@huawei.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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To make sure the GCE request signal to SPM is not trigger by
other HW modules and cause suspend premature wake.
Set 0x7 (the bit 0~2 as 1) to GCE_GCTL_VALUE, to configure the
request signal control by SW and release the request to SPM.
Signed-off-by: jason-jh.lin <jason-jh.lin@mediatek.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Silent the error if it's EPROBE_DEFER for clks.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Because mt8192 only have 1 gce, the gce_num should be 1.
Fixes: 85dfdbfc13ea ("mailbox: cmdq: add multi-gce clocks support for mt8195")
Signed-off-by: jason-jh.lin <jason-jh.lin@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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As with other blocks, we intend to have drivers bind to generic
compatibles as long as there are no SoC-specific quirks. This allows
forward-compatibility with future SoCs.
No upstream DTs instantiate this yet, so it's still safe to make this
breaking change.
Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Much as we've done with other blocks, let's introduce generic
compatibles so drivers can bind to those and still work with future
SoCs, as long as the hardware remains the same. Also go ahead and add
compatibles for the new t600x SoCs (we group those as t6000).
Note that no DTs instantiate devices with this binding yet.
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Don't populate the read-only const array offsets on the stack
but instead make it static. Also makes the object code a little smaller.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220109231716.59012-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Don't populate the read-only array rset_cmd on the stack but
instead it static const. Also makes the object code a little smaller.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220109202418.50641-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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While struct tcf_exts has a net pointer, it is not refcounted
until tcf_exts_get_net() is called.
Fixes: dbdcda634ce3 ("net: sched: add netns refcount tracker to struct tcf_exts")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220110094750.236478-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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'ipv4-fix-accidental-rto_onlink-flags-passed-to-ip_route_output_key_hash'
Guillaume Nault says:
====================
ipv4: Fix accidental RTO_ONLINK flags passed to ip_route_output_key_hash()
The IPv4 stack generally uses the last bit of ->flowi4_tos as a flag
indicating link scope for route lookups (RTO_ONLINK). Therefore, we
have to be careful when copying a TOS value to ->flowi4_tos. In
particular, the ->tos field of IPv4 packets may have this bit set
because of ECN. Also tunnel keys generally accept any user value for
the tos.
This series fixes several places where ->flowi4_tos was set from
non-sanitised values and the flowi4 structure was later used by
ip_route_output_key_hash().
Note that the IPv4 stack usually clears the RTO_ONLINK bit using
RT_TOS(). However this macro is based on an obsolete interpretation of
the old IPv4 TOS field (RFC 1349) and clears the three high order bits
too. Since we don't need to clear these bits and since it doesn't make
sense to clear only one of the ECN bits, this patch series uses
INET_ECN_MASK instead.
All patches were compile tested only.
====================
Link: https://lore.kernel.org/r/cover.1641821242.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Mask the ECN bits before calling mlx5e_route_lookup_ipv4_get(). The
tunnel key might have the last ECN bit set. This interferes with the
route lookup process as ip_route_output_key_hash() interpretes this bit
specially (to restrict the route scope).
Found by code inspection, compile tested only.
Fixes: c7b9038d8af6 ("net/mlx5e: TC preparation refactoring for routing update event")
Fixes: 9a941117fb76 ("net/mlx5e: Maximize ip tunnel key usage on the TC offloading path")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Mask the ECN bits before calling ip_route_output_ports(). The tos
variable might be passed directly from an IPv4 header, so it may have
the last ECN bit set. This interferes with the route lookup process as
ip_route_output_key_hash() interpretes this bit specially (to restrict
the route scope).
Found by code inspection, compile tested only.
Fixes: 804c2f3e36ef ("libcxgb,iw_cxgb4,cxgbit: add cxgb_find_route()")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Mask the ECN bits before initialising ->flowi4_tos. The tunnel key may
have the last ECN bit set, which will interfere with the route lookup
process as ip_route_output_key_hash() interpretes this bit specially
(to restrict the route scope).
Found by code inspection, compile tested only.
Fixes: 962924fa2b7a ("ip_gre: Refactor collect metatdata mode tunnel xmit to ip_md_tunnel_xmit")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Similar to commit 94e2238969e8 ("xfrm4: strip ECN bits from tos field"),
clear the ECN bits from iph->tos when setting ->flowi4_tos.
This ensures that the last bit of ->flowi4_tos is cleared, so
ip_route_output_key_hash() isn't going to restrict the scope of the
route lookup.
Use ~INET_ECN_MASK instead of IPTOS_RT_MASK, because we have no reason
to clear the high order bits.
Found by code inspection, compile tested only.
Fixes: 4da3089f2b58 ("[IPSEC]: Use TOS when doing tunnel lookups")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch remove magic numbers in sun4i-emac.c and replace with macros
defined in sun4i-emac.h
Signed-off-by: Conley Lee <conleylee@foxmail.com>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Link: https://lore.kernel.org/r/tencent_71466C2135CD1780B19D7844BE3F167C940A@qq.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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MCTP now requires that padding bytes are zero.
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Fixes: 1e4b50f06d97 ("mctp: handle the struct sockaddr_mctp padding fields")
Link: https://lore.kernel.org/r/20220110021806.2343023-1-matt@codeconstruct.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add the linux-modules list for kmod and linux modules changes.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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The MODULE_IMPORT_NS() macro does not allow defined strings to work
properly with it, so add a layer of indirection to allow this to happen.
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Matthias Maennich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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Current scheme of having userspace decompress kernel modules before
loading them into the kernel runs afoul of LoadPin security policy, as
it loses link between the source of kernel module on the disk and binary
blob that is being loaded into the kernel. To solve this issue let's
implement decompression in kernel, so that we can pass a file descriptor
of compressed module file into finit_module() which will keep LoadPin
happy.
To let userspace know what compression/decompression scheme kernel
supports it will create /sys/module/compression attribute. kmod can read
this attribute and decide if it can pass compressed file to
finit_module(). New MODULE_INIT_COMPRESSED_DATA flag indicates that the
kernel should attempt to decompress the data read from file descriptor
prior to trying load the module.
To simplify things kernel will only implement single decompression
method matching compression method selected when generating modules.
This patch implements gzip and xz; more can be added later,
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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Luis has done a great job maintaining modules so far. As I'm planning to
take a break from work soon, I think we're ready to transition over fully.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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Since commit e513cc1c07e2 ("module: Remove stop_machine from module
unloading") this comment is no longer correct. Remove it.
Signed-off-by: Yu Chen <chen.yu@easystack.cn>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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- Add MDMA and BDMA clks to Ingenic JZ4760 and JZ4770
- MediaTek mt7986 SoC basic support
* clk-ingenic:
clk: ingenic: Add MDMA and BDMA clocks
dt-bindings: clk/ingenic: Add MDMA and BDMA clocks
* clk-mediatek:
clk: mediatek: add mt7986 clock support
clk: mediatek: add mt7986 clock IDs
dt-bindings: clock: mediatek: document clk bindings for mediatek mt7986 SoC
clk: mediatek: clk-gate: Use regmap_{set/clear}_bits helpers
clk: mediatek: clk-gate: Shrink by adding clockgating bit check helper
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clk-next
- Clock and reset driver for Toshiba Visconti SoCs
* clk-socfpga:
clk: socfpga: s10: Make use of the helper function devm_platform_ioremap_resource()
clk: socfpga: agilex: Make use of the helper function devm_platform_ioremap_resource()
clk: socfpga: remove redundant assignment after a mask operation
clk: socfpga: remove redundant assignment on division
* clk-toshiba:
clk: visconti: Remove pointless NULL check in visconti_pll_add_lookup()
MAINTAINERS: Add entries for Toshiba Visconti PLL and clock controller
clk: visconti: Add support common clock driver and reset driver
dt-bindings: clock: Add DT bindings for SMU of Toshiba Visconti TMPV770x SoC
dt-bindings: clock: Add DT bindings for PLL of Toshiba Visconti TMPV770x SoC
* clk-st:
clk: Drop unused COMMON_CLK_STM32MP157_SCMI config
clk: st: clkgen-mux: search reg within node or parent
clk: st: clkgen-fsyn: search reg within node or parent
* clk-bitmain:
clk: bm1880: remove kfrees on static allocations
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clk-next
* clk-nvidia:
clk: tegra: Support runtime PM and power domain
clk: tegra: Make vde a child of pll_p on tegra114
* clk-imx:
clk: imx8mp: Fix the parent clk of the audio_root_clk
clk: imx8mp: Remove IPG_AUDIO_ROOT from imx8mp-clock.h
clk: imx8mn: Fix imx8mn_clko1_sels
clk: imx: Use div64_ul instead of do_div
clk: imx: imx8ulp: set suppress_bind_attrs to true
* clk-samsung:
clk: samsung: Add initial Exynos7885 clock driver
clk: samsung: clk-pll: Add support for pll1417x
clk: samsung: Make exynos850_register_cmu shared
dt-bindings: clock: Document Exynos7885 CMU bindings
dt-bindings: clock: Add bindings definitions for Exynos7885 CMU
clk: samsung: exynos850: Add missing sysreg clocks
dt-bindings: clock: Add bindings for Exynos850 sysreg clocks
clk: samsung: exynos850: Register clocks early
clk: samsung: exynos850: Keep some crucial clocks running
clk: samsung: exynos850: Implement CMU_CMGP domain
dt-bindings: clock: Add bindings for Exynos850 CMU_CMGP
clk: samsung: exynos850: Implement CMU_APM domain
dt-bindings: clock: Add bindings for Exynos850 CMU_APM
clk: samsung: Update CPU clk registration
clk: samsung: Remove meaningless __init and extern from header files
clk: samsung: remove __clk_lookup() usage
dt-bindings: clock: samsung: add IDs for some core clocks
* clk-qcom: (25 commits)
clk: qcom: gcc-sc7280: Mark gcc_cfg_noc_lpass_clk always enabled
clk: qcom: clk-alpha-pll: Increase PLL lock detect poll time
clk: qcom: turingcc-qcs404: explicitly include clk-provider.h
clk: qcom: q6sstop-qcs404: explicitly include clk-provider.h
clk: qcom: mmcc-apq8084: explicitly include clk-provider.h
clk: qcom: lpasscc-sdm845: explicitly include clk-provider.h
clk: qcom: lpasscc-sc7280: explicitly include clk-provider.h
clk: qcom: gcc-sm6350: explicitly include clk-provider.h
clk: qcom: gcc-msm8994: explicitly include clk-provider.h
clk: qcom: gcc-sm8350: explicitly include clk-provider.h
clk: qcom: Add MSM8976/56 Global Clock Controller (GCC) driver
dt-bindings: clk: qcom: Document MSM8976 Global Clock Controller
clk: qcom: Add clock driver for SM8450
clk: qcom: Add SDX65 GCC support
clk: qcom: Add LUCID_EVO PLL type for SDX65
dt-bindings: clock: Add SM8450 GCC clock bindings
dt-bindings: clock: Add SDX65 GCC clock bindings
clk: qcom: rpmh: add support for SM8450 rpmh clocks
dt-bindings: clock: Add RPMHCC bindings for SM8450
clk: qcom: smd-rpm: Drop binary value handling for buffered clock
...
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clk-next
* clk-x86:
clk: x86: Fix clk_gate_flags for RV_CLK_GATE
clk: x86: Use dynamic con_id string during clk registration
ACPI: APD: Add a fmw property clk-name
drivers: acpi: acpi_apd: Remove unused device property "is-rv"
x86: clk: clk-fch: Add support for newer family of AMD's SOC
clk: Introduce clk-tps68470 driver
platform/x86: int3472: Deal with probe ordering issues
platform/x86: int3472: Pass tps68470_regulator_platform_data to the tps68470-regulator MFD-cell
platform/x86: int3472: Pass tps68470_clk_platform_data to the tps68470-regulator MFD-cell
platform/x86: int3472: Add get_sensor_adev_and_name() helper
platform/x86: int3472: Split into 2 drivers
platform_data: Add linux/platform_data/tps68470.h file
i2c: acpi: Add i2c_acpi_new_device_by_fwnode() function
i2c: acpi: Use acpi_dev_ready_for_enumeration() helper
ACPI: delay enumeration of devices with a _DEP pointing to an INT3472 device
* clk-stm:
clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after system enter shell
* clk-amlogic:
clk: meson: gxbb: Fix the SDM_EN bit for MPLL0 on GXBB
* clk-allwinner:
clk: sunxi-ng: Add support for the D1 SoC clocks
clk: sunxi-ng: gate: Add macros for gates with fixed dividers
clk: sunxi-ng: mux: Add macros using clk_parent_data and clk_hw
clk: sunxi-ng: mp: Add macros using clk_parent_data and clk_hw
clk: sunxi-ng: div: Add macros using clk_parent_data and clk_hw
dt-bindings: clk: Add compatibles for D1 CCUs
clk: sunxi-ng: Allow the CCU core to be built as a module
clk: sunxi-ng: Convert early providers to platform drivers
clk: sunxi-ng: Allow drivers to be built as modules
clk: sunxi-ng: Export symbols used by CCU drivers
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'clk-debugfs' into clk-next
* clk-doc:
clk: Gemini: fix struct name in kernel-doc
clk: zynq: pll: Fix kernel-doc warnings
clk: imx: pllv1: fix kernel-doc notation for struct clk_pllv1
* clk-renesas: (31 commits)
clk: renesas: r9a07g044: Add GPU clock and reset entries
clk: renesas: r9a07g044: Add mux and divider for G clock
clk: renesas: r9a07g044: Rename CLK_PLL3_DIV4 macro
clk: renesas: cpg-mssr: Add support for R-Car S4-8
clk: renesas: rcar-gen4: Introduce R-Car Gen4 CPG driver
dt-bindings: clock: Add r8a779f0 CPG Core Clock Definitions
dt-bindings: power: Add r8a779f0 SYSC power domain definitions
clk: renesas: r9a07g044: Add TSU clock and reset entry
mmc: renesas_sdhi: Simplify an expression
mmc: renesas_sdhi: Use devm_clk_get_optional() to obtain CD clock
dt-bindings: clock: renesas,cpg-mssr: Document r8a779f0
clk: renesas: cpg-mssr: propagate return value of_genpd_add_provider_simple()
clk: renesas: cpg-mssr: Check return value of pm_genpd_init()
clk: renesas: rzg2l: propagate return value of_genpd_add_provider_simple()
clk: renesas: rzg2l: Check return value of pm_genpd_init()
clk: renesas: r9a07g044: Add RSPI clock and reset entries
clk: renesas: r9a07g044: Change core clock "I" from DEF_FIXED->DEF_DIV
clk: renesas: rzg2l: Add CPG_PL1_DDIV macro
mmc: renesas_sdhi: Parse DT for SDnH
mmc: renesas_sdhi: Use dev_err_probe when getting clock fails
...
* clk-at91:
clk: lan966x: Extend lan966x clock driver for clock gating support
dt-bindings: clock: lan966x: Extend includes with clock gates
dt-bindings: clock: lan966x: Extend for clock gate support
clk: gate: Add devm_clk_hw_register_gate()
clk: lan966x: Add lan966x SoC clock driver
dt-bindings: clock: lan966x: Add LAN966X Clock Controller
dt-bindings: clock: lan966x: Add binding includes for lan966x SoC clock IDs
* clk-cleanup:
clk: stm32mp1: remove redundant assignment to pointer data
clk: __clk_core_init() never takes NULL
clk: clk_core_get() can also return NULL
clk/ti/adpll: Make const pointer error a static const array
* clk-debugfs:
clk: Enable/Disable runtime PM for clk_summary
clk: Emit a stern warning with writable debugfs enabled
clk: Add write operation for clk_parent debugfs node
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Borislav Petkov:
"Lots of cleanups and preparation. Highlights:
- futex: Cleanup and remove runtime futex_cmpxchg detection
- rtmutex: Some fixes for the PREEMPT_RT locking infrastructure
- kcsan: Share owner_on_cpu() between mutex,rtmutex and rwsem and
annotate the racy owner->on_cpu access *once*.
- atomic64: Dead-Code-Elemination"
[ Description above by Peter Zijlstra ]
* tag 'locking_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/atomic: atomic64: Remove unusable atomic ops
futex: Fix additional regressions
locking: Allow to include asm/spinlock_types.h from linux/spinlock_types_raw.h
x86/mm: Include spinlock_t definition in pgtable.
locking: Mark racy reads of owner->on_cpu
locking: Make owner_on_cpu() into <linux/sched.h>
lockdep/selftests: Adapt ww-tests for PREEMPT_RT
lockdep/selftests: Skip the softirq related tests on PREEMPT_RT
lockdep/selftests: Unbalanced migrate_disable() & rcu_read_lock().
lockdep/selftests: Avoid using local_lock_{acquire|release}().
lockdep: Remove softirq accounting on PREEMPT_RT.
locking/rtmutex: Add rt_mutex_lock_nest_lock() and rt_mutex_lock_killable().
locking/rtmutex: Squash self-deadlock check for ww_rt_mutex.
locking: Remove rt_rwlock_is_contended().
sched: Trigger warning if ->migration_disabled counter underflows.
futex: Fix sparc32/m68k/nds32 build regression
futex: Remove futex_cmpxchg detection
futex: Ensure futex_atomic_cmpxchg_inatomic() is present
kernel/locking: Use a pointer in ww_mutex_trylock().
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Borislav Petkov:
"Mostly minor things this time; some highlights:
- core-sched: Add 'Forced Idle' accounting; this allows to track how
much CPU time is 'lost' due to core scheduling constraints.
- psi: Fix for MEM_FULL; a task running reclaim would be counted as a
runnable task and prevent MEM_FULL from being reported.
- cpuacct: Long standing fixes for some cgroup accounting issues.
- rt: Bandwidth timer could, under unusual circumstances, be failed
to armed, leading to indefinite throttling."
[ Description above by Peter Zijlstra ]
* tag 'sched_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Replace CFS internal cpu_util() with cpu_util_cfs()
sched/fair: Cleanup task_util and capacity type
sched/rt: Try to restart rt period timer when rt runtime exceeded
sched/fair: Document the slow path and fast path in select_task_rq_fair
sched/fair: Fix per-CPU kthread and wakee stacking for asym CPU capacity
sched/fair: Fix detection of per-CPU kthreads waking a task
sched/cpuacct: Make user/system times in cpuacct.stat more precise
sched/cpuacct: Fix user/system in shown cpuacct.usage*
cpuacct: Convert BUG_ON() to WARN_ON_ONCE()
cputime, cpuacct: Include guest time in user time in cpuacct.stat
psi: Fix PSI_MEM_FULL state when tasks are in memstall and doing reclaim
sched/core: Forced idle accounting
psi: Add a missing SPDX license header
psi: Remove repeated verbose comment
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git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull cast-function-type warning addition from Gustavo A. R. Silva:
"This globally enables -Wcast-function-type.
We need to make sure new function cast mismatches are not introduced
in the kernel in order to avoid tripping CFI checking"
* tag 'Wcast-function-type-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
Makefile: Enable -Wcast-function-type
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Pull ARM updates from Russell King:
- amba bus irq rework
- add kfence support
- support for Cortex M33 and M55 CPUs
- kbuild updates for decompressor
- let core code manage thread_info::cpu
- avoid unpredictable NOP encoding in decompressor
- reduce information printed in calltraces
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: reduce the information printed in call traces
ARM: 9168/1: Add support for Cortex-M55 processor
ARM: 9167/1: Add support for Cortex-M33 processor
ARM: 9166/1: Support KFENCE for ARM
ARM: 9165/1: mm: Provide is_write_fault()
ARM: 9164/1: mm: Provide set_memory_valid()
ARM: 9163/1: amba: Move of_amba_device_decode_irq() into amba_probe()
ARM: 9162/1: amba: Kill sysfs attribute file of irq
ARM: 9161/1: mm: mark private VM_FAULT_X defines as vm_fault_t
ARM: 9159/1: decompressor: Avoid UNPREDICTABLE NOP encoding
ARM: 9158/1: leave it to core code to manage thread_info::cpu
ARM: 9154/1: decompressor: do not copy source files while building
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture updates from Helge Deller:
- Fix lpa and lpa_user defines (John David Anglin)
- Fix symbol lookup of init functions with an __is_kernel() fix (Helge
Deller)
- Fix wrong pdc_toc_pim_11 and pdc_toc_pim_20 definitions (Helge
Deller)
- Add lws_atomic_xchg and lws_atomic_store syscalls (John David Anglin)
- Rewrite light-weight syscall and futex code (John David Anglin)
- Enable TOC (transfer of contents) feature unconditionally (Helge
Deller)
- Improve fault handler messages (John David Anglin)
- Improve build process (Masahiro Yamada)
- Reduce kernel code footprint of user access functions (Helge Deller)
- Fix build error due to outX() macros (Bart Van Assche)
- Ue default_groups in kobj_type in pdc_stable (Greg Kroah-Hartman)
- Default to 16 CPUs on 32-bit kernel (Helge Deller)
* tag 'for-5.17/parisc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Default to 16 CPUs on 32-bit kernel
sections: Fix __is_kernel() to include init ranges
parisc: Re-use toc_stack as hpmc_stack
parisc: Enable TOC (transfer of contents) feature unconditionally
parisc: io: Improve the outb(), outw() and outl() macros
parisc: pdc_stable: use default_groups in kobj_type
parisc: Add kgdb io_module to read chars via PDC
parisc: Fix pdc_toc_pim_11 and pdc_toc_pim_20 definitions
parisc: Add lws_atomic_xchg and lws_atomic_store syscalls
parisc: Rewrite light-weight syscall and futex code
parisc: Enhance page fault termination message
parisc: Don't call faulthandler_disabled() in do_page_fault()
parisc: Switch user access functions to signal errors in r29 instead of r8
parisc: Avoid calling faulthandler_disabled() twice
parisc: Fix lpa and lpa_user defines
parisc: Define depi_safe macro
parisc: decompressor: do not copy source files while building
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