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Older adapters doesn't support the MAX CQ WQEs reported by older FW. So
restrict the value reported to 1M always for older adapters.
Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://patch.msgid.link/r/[email protected]
Signed-off-by: Abhishek Mohapatra<[email protected]>
Reviewed-by: Chandramohan Akula <[email protected]>
Signed-off-by: Selvin Xavier <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Disable kunit tests for arm64+ACPI
- Fix refcount issue in kunit tests
- Drop constraints on non-conformant 'interrupt-map' in fsl,ls-extirq
- Drop type ref on 'msi-parent in fsl,qoriq-mc binding
- Move elgin,jg10309-01 to its own binding from trivial-devices
* tag 'devicetree-fixes-for-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: Skip kunit tests when arm64+ACPI doesn't populate root node
of: Fix unbalanced of node refcount and memory leaks
dt-bindings: interrupt-controller: fsl,ls-extirq: workaround wrong interrupt-map number
dt-bindings: misc: fsl,qoriq-mc: remove ref for msi-parent
dt-bindings: display: elgin,jg10309-01: Add own binding
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev platform driver fix from Helge Deller:
"Switch fbdev drivers back to struct platform_driver::remove()
Now that 'remove()' has been converted to the sane new API, there's
no reason for the 'remove_new()' use, so this converts back to the
traditional and simpler name.
See commits
5c5a7680e67b ("platform: Provide a remove callback that returns no value")
0edb555a65d1 ("platform: Make platform_driver::remove() return void")
for background to this all"
* tag 'fbdev-for-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: Switch back to struct platform_driver::remove()
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When running "xdp-bench tx eno0" to test the XDP_TX feature of ENETC
on LS1028A, it was found that if the command was re-run multiple times,
Rx could not receive the frames, and the result of xdp-bench showed
that the rx rate was 0.
root@ls1028ardb:~# ./xdp-bench tx eno0
Hairpinning (XDP_TX) packets on eno0 (ifindex 3; driver fsl_enetc)
Summary 2046 rx/s 0 err,drop/s
Summary 0 rx/s 0 err,drop/s
Summary 0 rx/s 0 err,drop/s
Summary 0 rx/s 0 err,drop/s
By observing the Rx PIR and CIR registers, CIR is always 0x7FF and
PIR is always 0x7FE, which means that the Rx ring is full and can no
longer accommodate other Rx frames. Therefore, the problem is caused
by the Rx BD ring not being cleaned up.
Further analysis of the code revealed that the Rx BD ring will only
be cleaned if the "cleaned_cnt > xdp_tx_in_flight" condition is met.
Therefore, some debug logs were added to the driver and the current
values of cleaned_cnt and xdp_tx_in_flight were printed when the Rx
BD ring was full. The logs are as follows.
[ 178.762419] [XDP TX] >> cleaned_cnt:1728, xdp_tx_in_flight:2140
[ 178.771387] [XDP TX] >> cleaned_cnt:1941, xdp_tx_in_flight:2110
[ 178.776058] [XDP TX] >> cleaned_cnt:1792, xdp_tx_in_flight:2110
From the results, the max value of xdp_tx_in_flight has reached 2140.
However, the size of the Rx BD ring is only 2048. So xdp_tx_in_flight
did not drop to 0 after enetc_stop() is called and the driver does not
clear it. The root cause is that NAPI is disabled too aggressively,
without having waited for the pending XDP_TX frames to be transmitted,
and their buffers recycled, so that xdp_tx_in_flight cannot naturally
drop to 0. Later, enetc_free_tx_ring() does free those stale, unsent
XDP_TX packets, but it is not coded up to also reset xdp_tx_in_flight,
hence the manifestation of the bug.
One option would be to cover this extra condition in enetc_free_tx_ring(),
but now that the ENETC_TX_DOWN exists, we have created a window at
the beginning of enetc_stop() where NAPI can still be scheduled, but
any concurrent enqueue will be blocked. Therefore, enetc_wait_bdrs()
and enetc_disable_tx_bdrs() can be called with NAPI still scheduled,
and it is guaranteed that this will not wait indefinitely, but instead
give us an indication that the pending TX frames have orderly dropped
to zero. Only then should we call napi_disable().
This way, enetc_free_tx_ring() becomes entirely redundant and can be
dropped as part of subsequent cleanup.
The change also refactors enetc_start() so that it looks like the
mirror opposite procedure of enetc_stop().
Fixes: ff58fda09096 ("net: enetc: prioritize ability to go down over packet processing")
Cc: [email protected]
Signed-off-by: Wei Fang <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Tested-by: Vladimir Oltean <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The Tx BD rings are disabled first in enetc_stop() and the driver
waits for them to become empty. This operation is not safe while
the ring is actively transmitting frames, and will cause the ring
to not be empty and hardware exception. As described in the NETC
block guide, software should only disable an active Tx ring after
all pending ring entries have been consumed (i.e. when PI = CI).
Disabling a transmit ring that is actively processing BDs risks
a HW-SW race hazard whereby a hardware resource becomes assigned
to work on one or more ring entries only to have those entries be
removed due to the ring becoming disabled.
When testing XDP_REDIRECT feautre, although all frames were blocked
from being put into Tx rings during ring reconfiguration, the similar
warning log was still encountered:
fsl_enetc 0000:00:00.2 eno2: timeout for tx ring #6 clear
fsl_enetc 0000:00:00.2 eno2: timeout for tx ring #7 clear
The reason is that when there are still unsent frames in the Tx ring,
disabling the Tx ring causes the remaining frames to be unable to be
sent out. And the Tx ring cannot be restored, which means that even
if the xdp program is uninstalled, the Tx frames cannot be sent out
anymore. Therefore, correct the operation order in enect_start() and
enect_stop().
Fixes: ff58fda09096 ("net: enetc: prioritize ability to go down over packet processing")
Cc: [email protected]
Signed-off-by: Wei Fang <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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When testing the XDP_REDIRECT function on the LS1028A platform, we
found a very reproducible issue that the Tx frames can no longer be
sent out even if XDP_REDIRECT is turned off. Specifically, if there
is a lot of traffic on Rx direction, when XDP_REDIRECT is turned on,
the console may display some warnings like "timeout for tx ring #6
clear", and all redirected frames will be dropped, the detailed log
is as follows.
root@ls1028ardb:~# ./xdp-bench redirect eno0 eno2
Redirecting from eno0 (ifindex 3; driver fsl_enetc) to eno2 (ifindex 4; driver fsl_enetc)
[203.849809] fsl_enetc 0000:00:00.2 eno2: timeout for tx ring #5 clear
[204.006051] fsl_enetc 0000:00:00.2 eno2: timeout for tx ring #6 clear
[204.161944] fsl_enetc 0000:00:00.2 eno2: timeout for tx ring #7 clear
eno0->eno2 1420505 rx/s 1420590 err,drop/s 0 xmit/s
xmit eno0->eno2 0 xmit/s 1420590 drop/s 0 drv_err/s 15.71 bulk-avg
eno0->eno2 1420484 rx/s 1420485 err,drop/s 0 xmit/s
xmit eno0->eno2 0 xmit/s 1420485 drop/s 0 drv_err/s 15.71 bulk-avg
By analyzing the XDP_REDIRECT implementation of enetc driver, the
driver will reconfigure Tx and Rx BD rings when a bpf program is
installed or uninstalled, but there is no mechanisms to block the
redirected frames when enetc driver reconfigures rings. Similarly,
XDP_TX verdicts on received frames can also lead to frames being
enqueued in the Tx rings. Because XDP ignores the state set by the
netif_tx_wake_queue() API, so introduce the ENETC_TX_DOWN flag to
suppress transmission of XDP frames.
Fixes: c33bfaf91c4c ("net: enetc: set up XDP program under enetc_reconfigure()")
Cc: [email protected]
Signed-off-by: Wei Fang <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The xdp_drops statistic indicates the number of XDP frames dropped in
the Rx direction. However, enetc_xdp_drop() is also used in XDP_TX and
XDP_REDIRECT actions. If frame loss occurs in these two actions, the
frames loss count should not be included in xdp_drops, because there
are already xdp_tx_drops and xdp_redirect_failures to count the frame
loss of these two actions, so it's better to remove xdp_drops statistic
from enetc_xdp_drop() and increase xdp_drops in XDP_DROP action.
Fixes: 7ed2bc80074e ("net: enetc: add support for XDP_TX")
Cc: [email protected]
Signed-off-by: Wei Fang <[email protected]>
Reviewed-by: Maciej Fijalkowski <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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When port mirroring is added to a port, the bit position of the source
port, needs to be written to the register ANA_AC_PROBE_PORT_CFG. This
register is replicated for n_ports > 32, and therefore we need to derive
the correct register from the port number.
Before this patch, we wrongly calculate the register from portno /
BITS_PER_BYTE, where the divisor ought to be 32, causing any port >=8 to
be written to the wrong register. We fix this, by using do_div(), where
the dividend is the register, the remainder is the bit position and the
divisor is now 32.
Fixes: 4e50d72b3b95 ("net: sparx5: add port mirroring implementation")
Signed-off-by: Daniel Machon <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix clock handle leak in probe() error path in gpio-aspeed
- add a dummy register read to ensure the write actually completed
* tag 'gpio-fixes-for-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: aspeed: Use devm_clk api to manage clock source
gpio: aspeed: Add the flush write to ensure the write complete.
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'new_map' is allocated using devm_* which takes care of freeing the
allocated data on device removal, call to
.dt_free_map = pinconf_generic_dt_free_map
double frees the map as pinconf_generic_dt_free_map() calls
pinctrl_utils_free_map().
Fix this by using kcalloc() instead of auto-managed devm_kcalloc().
Cc: [email protected]
Fixes: f805e356313b ("pinctrl: nuvoton: Add ma35d1 pinctrl and GPIO driver")
Reported-by: Christophe JAILLET <[email protected]>
Signed-off-by: Harshit Mogalapalli <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These address two issues in the TPMI module of the Intel RAPL power
capping driver and one issue in the processor part of the Intel
int340x thermal driver, update a CPU ID list and register definitions
needed for RAPL PL4 support and remove some unused code.
Specifics:
- Fix the TPMI_RAPL_REG_DOMAIN_INFO register offset in the TPMI part
of the Intel RAPL power capping driver, make it ignore minor
hardware version mismatches (which only indicate exposing
additional features) and update register definitions in it to
enable PL4 support (Zhang Rui)
- Add Arrow Lake-U to the list of processors supporting PL4 in the
MSR part of the Intel RAPL power capping driver (Sumeet Pawnikar)
- Remove excess pci_disable_device() calls from the processor part of
the int340x thermal driver to address a warning triggered during
module unload and remove unused CPU hotplug code related to RAPL
support from it (Zhang Rui)"
* tag 'pm-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel: int340x: processor: Add MMIO RAPL PL4 support
thermal: intel: int340x: processor: Remove MMIO RAPL CPU hotplug support
powercap: intel_rapl_msr: Add PL4 support for Arrowlake-U
powercap: intel_rapl_tpmi: Ignore minor version change
thermal: intel: int340x: processor: Fix warning during module unload
powercap: intel_rapl_tpmi: Fix bogus register reading
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"Address possible use-after-free scenarios during the processing of
thermal netlink commands and during thermal zone removal (Rafael
Wysocki)"
* tag 'thermal-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Free tzp copy along with the thermal zone
thermal: core: Reference count the zone in thermal_zone_get_by_id()
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"Reduce the number of ACPI IRQ override DMI quirks by combining quirks
that cover similar systems while making them cover additional models
at the same time (Hans de Goede)"
* tag 'acpi-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: resource: Fold Asus Vivobook Pro N6506M* DMI quirks together
ACPI: resource: Fold Asus ExpertBook B1402C* and B1502C* DMI quirks together
ACPI: resource: Make Asus ExpertBook B2502 matches cover more models
ACPI: resource: Make Asus ExpertBook B2402 matches cover more models
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain fixes from Ulf Hansson:
"pmdomain core:
- Fix alloc/free in dev_pm_domain_attach|detach_list()
pmdomain providers:
- qcom: Fix the return of uninitialized variable
pmdomain consumers:
- drm/tegra/gr3d: Revert conversion to dev_pm_domain_attach|detach_list()
OPP core:
- Fix error code in dev_pm_opp_set_config()"
* tag 'pmdomain-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
PM: domains: Fix alloc/free in dev_pm_domain_attach|detach_list()
Revert "drm/tegra: gr3d: Convert into dev_pm_domain_attach|detach_list()"
pmdomain: qcom-cpr: Fix the return of uninitialized variable
OPP: fix error code in dev_pm_opp_set_config()
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Prevent splat from warning when setting maximum DMA segment
MMC host:
- mvsdio: Drop sg_miter support for PIO as it didn't work
- sdhci-of-dwcmshc: Prevent stale interrupt for the T-Head 1520
variant"
* tag 'mmc-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-of-dwcmshc: Prevent stale command interrupt handling
Revert "mmc: mvsdio: Use sg_miter for PIO"
mmc: core: Only set maximum DMA segment size if DMA is supported
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Niklas Cassel:
- Fix a hibernate regression where the disk was needlessly spun down
and then immediately spun up both when entering and when resuming
from hibernation (me)
- Update the MAINTAINERS file to remove remnants from Jens
maintainership of libata (Damien)
* tag 'ata-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata: Update MAINTAINERS file
ata: libata: avoid superfluous disk spin down + spin up during hibernation
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Pull drm fixes from Dave Airlie:
"Weekly fixes haul for drm, lots of small fixes all over, amdgpu, xe
lead the way, some minor nouveau and radeon fixes, and then a bunch of
misc all over.
Nothing too scary or out of the unusual.
sched:
- Avoid leaking lockdep map
fbdev-dma:
- Only clean up deferred I/O if instanciated
amdgpu:
- Fix invalid UBSAN warnings
- Fix artifacts in MPO transitions
- Hibernation fix
amdkfd:
- Fix an eviction fence leak
radeon:
- Add late register for connectors
- Always set GEM function pointers
i915:
- HDCP refcount fix
nouveau:
- dmem: Fix privileged error in copy engine channel; Fix possible
data leak in migrate_to_ram()
- gsp: Fix coding style
v3d:
- Stop active perfmon before destroying it
vc4:
- Stop active perfmon before destroying it
xe:
- Drop GuC submit_wq pool
- Fix error checking with xa_store()
- Fix missing freq restore on GSC load error
- Fix wedged_mode file permission
- Fix use-after-free in ct communication"
* tag 'drm-fixes-2024-10-11' of https://gitlab.freedesktop.org/drm/kernel:
drm/fbdev-dma: Only cleanup deferred I/O if necessary
drm/xe: Make wedged_mode debugfs writable
drm/xe: Restore GT freq on GSC load error
drm/xe/guc_submit: fix xa_store() error checking
drm/xe/ct: fix xa_store() error checking
drm/xe/ct: prevent UAF in send_recv()
drm/radeon: always set GEM function pointer
nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
nouveau/dmem: Fix privileged error in copy engine channel
drm/amd/display: fix hibernate entry for DCN35+
drm/amd/display: Clear update flags after update has been applied
drm/amdgpu: partially revert powerplay `__counted_by` changes
drm/radeon: add late_register for connector
drm/amdkfd: Fix an eviction fence leak
drm/vc4: Stop the active perfmon before being destroyed
drm/v3d: Stop the active perfmon before being destroyed
drm/i915/hdcp: fix connector refcounting
drm/nouveau/gsp: remove extraneous ; after mutex
drm/xe: Drop GuC submit_wq pool
drm/sched: Use drm sched lockdep map for submit_wq
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Since commit 4c39529663b9 ("slab: Warn on duplicate cache names when
DEBUG_VM=y"), slab complains about duplicate cache names. Hence this
patch. The approach is as follows:
- Maintain an xarray with the slab size as index and a reference count
and a kmem_cache pointer as contents. Use srpt-${slab_size} as kmem
cache name.
- Use 512-byte alignment for all slabs instead of only for some of the
slabs.
- Increment the reference count instead of calling kmem_cache_create().
- Decrement the reference count instead of calling kmem_cache_destroy().
Fixes: 5dabcd0456d7 ("RDMA/srpt: Add support for immediate data")
Link: https://patch.msgid.link/r/[email protected]
Reported-by: Shinichiro Kawasaki <[email protected]>
Closes: https://lore.kernel.org/linux-block/xpe6bea7rakpyoyfvspvin2dsozjmjtjktpph7rep3h25tv7fb@ooz4cu5z6bq6/
Suggested-by: Jason Gunthorpe <[email protected]>
Signed-off-by: Bart Van Assche <[email protected]>
Tested-by: Shin'ichiro Kawasaki <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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There is "accept*" misspelled as "accpet*" in the comments. Fix the
spelling.
Fixes: 146b9756f14c ("RDMA/irdma: Add connection manager")
Link: https://patch.msgid.link/r/[email protected]
Signed-off-by: Alexander Zubkov <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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ip_dev_find() always returns real net_device address, whether traffic is
running on a vlan or real device, if traffic is over vlan, filling
endpoint struture with real ndev and an attempt to send a connect request
will results in RDMA_CM_EVENT_UNREACHABLE error. This patch fixes the
issue by using vlan_dev_real_dev().
Fixes: 830662f6f032 ("RDMA/cxgb4: Add support for active and passive open connection with IPv6 address")
Link: https://patch.msgid.link/r/[email protected]
Signed-off-by: Anumula Murali Mohan Reddy <[email protected]>
Signed-off-by: Potnuri Bharat Teja <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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While running ISER over SIW, the initiator machine encounters a warning
from skb_splice_from_iter() indicating that a slab page is being used in
send_page. To address this, it is better to add a sendpage_ok() check
within the driver itself, and if it returns 0, then MSG_SPLICE_PAGES flag
should be disabled before entering the network stack.
A similar issue has been discussed for NVMe in this thread:
https://lore.kernel.org/all/[email protected]/
WARNING: CPU: 0 PID: 5342 at net/core/skbuff.c:7140 skb_splice_from_iter+0x173/0x320
Call Trace:
tcp_sendmsg_locked+0x368/0xe40
siw_tx_hdt+0x695/0xa40 [siw]
siw_qp_sq_process+0x102/0xb00 [siw]
siw_sq_resume+0x39/0x110 [siw]
siw_run_sq+0x74/0x160 [siw]
kthread+0xd2/0x100
ret_from_fork+0x34/0x40
ret_from_fork_asm+0x1a/0x30
Link: https://patch.msgid.link/r/[email protected]
Signed-off-by: Showrya M N <[email protected]>
Signed-off-by: Potnuri Bharat Teja <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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Broadcom STB platforms have for historical reasons included both
"arm,scmi-smc" and "arm,scmi" in their SCMI Device Tree node compatible
string, in that order.
After the commit b53515fa177c ("firmware: arm_scmi: Make MBOX transport
a standalone driver") and with a kernel configuration that enables both
the SMC and the mailbox transports, we would probe the mailbox transport,
but fail to complete since we would not have a mailbox driver available.
With each SCMI transport being a platform driver with its own set of
compatible strings to match, rather than an unique platform driver entry
point, we no longer match from most specific to least specific. There is
also no simple way for the mailbox driver to return -ENODEV and let
another platform driver attempt probing. This leads to a platform with
no SCMI provider, therefore all drivers depending upon SCMI resources
are put on deferred probe forever.
By keeping the SMC transport objects linked first, we can let the
platform driver match the compatible string and probe successfully with
no adverse effects on platforms using the mailbox transport.
This is just the workaround to the issue observed which doesn't have any
impact on the other platforms.
Fixes: b53515fa177c ("firmware: arm_scmi: Make MBOX transport a standalone driver")
Signed-off-by: Florian Fainelli <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Cristian Marussi <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
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Clang static checker(scan-build) throws below warning：
| drivers/firmware/arm_scmi/driver.c:line 2915, column 2
| Attempt to free released memory.
When devm_add_action_or_reset() fails, scmi_debugfs_common_cleanup()
will run twice which causes double free of 'dbg->name'.
Remove the redundant scmi_debugfs_common_cleanup() to fix this problem.
Fixes: c3d4aed763ce ("firmware: arm_scmi: Populate a common SCMI debugfs root")
Signed-off-by: Su Hui <[email protected]>
Reviewed-by: Cristian Marussi <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
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conn_lowest_minor() last use was removed by 2011 commit
69a227731a37 ("drbd: Pass a peer device to a number of fuctions")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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KASAN reported following issue:
BUG: KASAN: stack-out-of-bounds in tb_retimer_scan+0xffe/0x1550 [thunderbolt]
Read of size 4 at addr ffff88810111fc1c by task kworker/u56:0/11
CPU: 0 UID: 0 PID: 11 Comm: kworker/u56:0 Tainted: G U 6.11.0+ #1387
Tainted: [U]=USER
Workqueue: thunderbolt0 tb_handle_hotplug [thunderbolt]
Call Trace:
<TASK>
dump_stack_lvl+0x6c/0x90
print_report+0xd1/0x630
kasan_report+0xdb/0x110
__asan_report_load4_noabort+0x14/0x20
tb_retimer_scan+0xffe/0x1550 [thunderbolt]
tb_scan_port+0xa6f/0x2060 [thunderbolt]
tb_handle_hotplug+0x17b1/0x3080 [thunderbolt]
process_one_work+0x626/0x1100
worker_thread+0x6c8/0xfa0
kthread+0x2c8/0x3a0
ret_from_fork+0x3a/0x80
ret_from_fork_asm+0x1a/0x30
This happens because the loop variable still gets incremented by one so
max becomes 3 instead of 2, and this makes the second loop read past the
the array declared on the stack.
Fix this by assigning to max directly in the loop body.
Fixes: ff6ab055e070 ("thunderbolt: Add receiver lane margining support for retimers")
CC: [email protected]
Signed-off-by: Mika Westerberg <[email protected]>
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FSL SOC fixes for v6.12:
- Fix a "cast to pointer from integer of different size" build error
due to IS_ERROR_VALUE() used with something which is not a pointer.
- Fix an unused data build warning.
* tag 'soc_fsl-6.12-3' of https://github.com/chleroy/linux:
soc: fsl: cpm1: qmc: Fix unused data compilation warning
soc: fsl: cpm1: qmc: Do not use IS_ERR_VALUE() on error pointers
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
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ep93xx_dma.c: In function 'ep93xx_dma_of_probe':
ep93xx_dma.c:1409:74: warning: '%u' directive output may be truncated
writing between 1 and 8 bytes into a region
of size 2 [-Wformat-truncation=]
snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i);
^~
Fixes: d7333f9d3377 ("dmaengine: cirrus: use snprintf() to calm down gcc 13.3.0")
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Alexander Sverdlin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
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ep93xx_dma.c:1354:37: sparse: sparse: incorrect type in return expression
(different address spaces)
ep93xx_dma.c:1354:37: sparse: expected struct ep93xx_dma_engine *
ep93xx_dma.c:1354:37: sparse: got void [noderef] __iomem *regs
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Fixes: 4e8ad5ed845b ("dmaengine: cirrus: Convert to DT for Cirrus EP93xx")
Signed-off-by: Alexander Sverdlin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
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Unlike EMR tools which encode type information in their tool ID, tools
for AES sensors are all "generic pens". It is inappropriate to make use
of the wacom_intuos_get_tool_type function when dealing with these kinds
of devices. Instead, we should only ever report BTN_TOOL_PEN or
BTN_TOOL_RUBBER, as depending on the state of the Eraser and Invert
bits.
Reported-by: Daniel Jutz <[email protected]>
Closes: https://lore.kernel.org/linux-input/[email protected]/
Bisected-by: Christian Heusel <[email protected]>
Fixes: 9c2913b962da ("HID: wacom: more appropriate tool type categorization")
Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/1041
Link: https://github.com/linuxwacom/input-wacom/issues/440
Signed-off-by: Jason Gerecke <[email protected]>
Cc: [email protected]
Acked-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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The COMMONONN bit suspends the phy when the port is put into a suspend
state. However when the phy is shared between host and device in dual
mode, this no longer works cleanly as there is no synchronization between
the two.
Fixes: 5095d045a962 ("phy: usb: Turn off phy when port is in suspend")
Signed-off-by: Justin Chen <[email protected]>
Acked-by: Florian Fainelli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
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Drop the unnecessary "_sys" infix from the suspend PM ops.
Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Serial drivers should not be dropping characters themselves, but at
least drop the unused 'drop' parameter from the receive handler for now.
Reviewed-by: Douglas Anderson <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Drop the unnecessary WARN() in case the TTY buffers are ever full in
favour of a rate limited dev_err() which doesn't kill the machine when
panic_on_warn is set.
Reviewed-by: Douglas Anderson <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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The receiver is supposed to be enabled in the startup() callback and not
in set_termios() which is called also during console setup.
This specifically avoids accepting input before the port has been opened
(and interrupts enabled), something which can also break the GENI
firmware (cancel fails and after abort, the "stale" counter handling
appears to be broken so that later input is not processed until twelve
chars have been received).
There also does not appear to be any need to keep the receiver disabled
while updating the port settings.
Since commit 6f3c3cafb115 ("serial: qcom-geni: disable interrupts during
console writes") the calls to manipulate the secondary interrupts, which
were done without holding the port lock, can also lead to the receiver
being left disabled when set_termios() races with the console code (e.g.
when init opens the tty during boot). This can manifest itself as a
serial getty not accepting input.
The calls to stop and start rx in set_termios() can similarly race with
DMA completion and, for example, cause the DMA buffer to be unmapped
twice or the mapping to be leaked.
Fix this by only enabling the receiver during startup and while holding
the port lock to avoid racing with the console code.
Fixes: 6f3c3cafb115 ("serial: qcom-geni: disable interrupts during console writes")
Fixes: 2aaa43c70778 ("tty: serial: qcom-geni-serial: add support for serial engine DMA")
Fixes: c4f528795d1a ("tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP")
Cc: [email protected] # 6.3
Cc: Bartosz Golaszewski <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Make sure to wait for the DMA transfer to complete when cancelling the
rx command on stop_rx(). This specifically prevents the DMA completion
interrupt from firing after rx has been restarted, something which can
lead to an IOMMU fault and hosed rx when the interrupt handler unmaps
the DMA buffer for the new command:
qcom_geni_serial 988000.serial: serial engine reports 0 RX bytes in!
arm-smmu 15000000.iommu: FSR = 00000402 [Format=2 TF], SID=0x563
arm-smmu 15000000.iommu: FSYNR0 = 00210013 [S1CBNDX=33 WNR PLVL=3]
Bluetooth: hci0: command 0xfc00 tx timeout
Bluetooth: hci0: Reading QCA version information failed (-110)
Also add the missing state machine reset which is needed in case
cancellation fails.
Fixes: 2aaa43c70778 ("tty: serial: qcom-geni-serial: add support for serial engine DMA")
Cc: [email protected] # 6.3
Cc: Bartosz Golaszewski <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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A commit adding back the stopping of tx on port shutdown failed to add
back the locking which had also been removed by commit e83766334f96
("tty: serial: qcom_geni_serial: No need to stop tx/rx on UART
shutdown").
Holding the port lock is needed to serialise against the console code,
which may update the interrupt enable register and access the port
state.
Fixes: d8aca2f96813 ("tty: serial: qcom-geni-serial: stop operations in progress at shutdown")
Fixes: 947cc4ecc06c ("serial: qcom-geni: fix soft lockup on sw flow control and suspend")
Cc: [email protected] # 6.3
Reviewed-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This reverts commit 35781d8356a2eecaa6074ceeb80ee22e252fcdae.
Hibernation is not supported on Qualcomm platforms with mainline
kernels yet a broken vendor implementation for the GENI serial driver
made it upstream.
This is effectively dead code that cannot be tested and should just be
removed, but if these paths were ever hit for an open non-console port
they would crash the machine as the driver would fail to enable clocks
during restore() (i.e. all ports would have to be closed by drivers and
user space before hibernating the system to avoid this as a comment in
the code hinted at).
The broken implementation also added a random call to enable the
receiver in the port setup code where it does not belong and which
enables the receiver prematurely for console ports.
Fixes: 35781d8356a2 ("tty: serial: qcom-geni-serial: Add support for Hibernation feature")
Cc: [email protected] # 6.2
Cc: Aniket Randive <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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The polled console (KGDB/KDB) implementation must not call port setup
unconditionally as the port may already be in use by the console or a
getty.
Only make sure that the receiver is enabled, but do not enable any
device interrupts.
Fixes: d8851a96ba25 ("tty: serial: qcom-geni-serial: Add a poll_init() function")
Cc: [email protected] # 6.4
Cc: Douglas Anderson <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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When sending data using DMA at high baudrate (4 Mbdps in local test case) to
a device with small RX buffer which keeps asserting RTS after every received
byte, it is possible that the iMX UART driver would not recognize the falling
edge of RTS input signal and get stuck, unable to transmit any more data.
This condition happens when the following sequence of events occur:
- imx_uart_mctrl_check() is called at some point and takes a snapshot of UART
control signal status into sport->old_status using imx_uart_get_hwmctrl().
The RTSS/TIOCM_CTS bit is of interest here (*).
- DMA transfer occurs, the remote device asserts RTS signal after each byte.
The i.MX UART driver recognizes each such RTS signal change, raises an
interrupt with USR1 register RTSD bit set, which leads to invocation of
__imx_uart_rtsint(), which calls uart_handle_cts_change().
- If the RTS signal is deasserted, uart_handle_cts_change() clears
port->hw_stopped and unblocks the port for further data transfers.
- If the RTS is asserted, uart_handle_cts_change() sets port->hw_stopped
and blocks the port for further data transfers. This may occur as the
last interrupt of a transfer, which means port->hw_stopped remains set
and the port remains blocked (**).
- Any further data transfer attempts will trigger imx_uart_mctrl_check(),
which will read current status of UART control signals by calling
imx_uart_get_hwmctrl() (***) and compare it with sport->old_status .
- If current status differs from sport->old_status for RTS signal,
uart_handle_cts_change() is called and possibly unblocks the port
by clearing port->hw_stopped .
- If current status does not differ from sport->old_status for RTS
signal, no action occurs. This may occur in case prior snapshot (*)
was taken before any transfer so the RTS is deasserted, current
snapshot (***) was taken after a transfer and therefore RTS is
deasserted again, which means current status and sport->old_status
are identical. In case (**) triggered when RTS got asserted, and
made port->hw_stopped set, the port->hw_stopped will remain set
because no change on RTS line is recognized by this driver and
uart_handle_cts_change() is not called from here to unblock the
port->hw_stopped.
Update sport->old_status in __imx_uart_rtsint() accordingly to make
imx_uart_mctrl_check() detect such RTS change. Note that TIOCM_CAR
and TIOCM_RI bits in sport->old_status do not suffer from this problem.
Fixes: ceca629e0b48 ("[ARM] 2971/1: i.MX uart handle rts irq")
Cc: stable <[email protected]>
Reviewed-by: Esben Haabendal <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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BUG: KASAN: slab-use-after-free in gsm_cleanup_mux+0x77b/0x7b0
drivers/tty/n_gsm.c:3160 [n_gsm]
Read of size 8 at addr ffff88815fe99c00 by task poc/3379
CPU: 0 UID: 0 PID: 3379 Comm: poc Not tainted 6.11.0+ #56
Hardware name: VMware, Inc. VMware Virtual Platform/440BX
Desktop Reference Platform, BIOS 6.00 11/12/2020
Call Trace:
<TASK>
gsm_cleanup_mux+0x77b/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm]
__pfx_gsm_cleanup_mux+0x10/0x10 drivers/tty/n_gsm.c:3124 [n_gsm]
__pfx_sched_clock_cpu+0x10/0x10 kernel/sched/clock.c:389
update_load_avg+0x1c1/0x27b0 kernel/sched/fair.c:4500
__pfx_min_vruntime_cb_rotate+0x10/0x10 kernel/sched/fair.c:846
__rb_insert_augmented+0x492/0xbf0 lib/rbtree.c:161
gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm]
_raw_spin_lock_irqsave+0x92/0xf0 arch/x86/include/asm/atomic.h:107
__pfx_gsmld_ioctl+0x10/0x10 drivers/tty/n_gsm.c:3822 [n_gsm]
ktime_get+0x5e/0x140 kernel/time/timekeeping.c:195
ldsem_down_read+0x94/0x4e0 arch/x86/include/asm/atomic64_64.h:79
__pfx_ldsem_down_read+0x10/0x10 drivers/tty/tty_ldsem.c:338
__pfx_do_vfs_ioctl+0x10/0x10 fs/ioctl.c:805
tty_ioctl+0x643/0x1100 drivers/tty/tty_io.c:2818
Allocated by task 65:
gsm_data_alloc.constprop.0+0x27/0x190 drivers/tty/n_gsm.c:926 [n_gsm]
gsm_send+0x2c/0x580 drivers/tty/n_gsm.c:819 [n_gsm]
gsm1_receive+0x547/0xad0 drivers/tty/n_gsm.c:3038 [n_gsm]
gsmld_receive_buf+0x176/0x280 drivers/tty/n_gsm.c:3609 [n_gsm]
tty_ldisc_receive_buf+0x101/0x1e0 drivers/tty/tty_buffer.c:391
tty_port_default_receive_buf+0x61/0xa0 drivers/tty/tty_port.c:39
flush_to_ldisc+0x1b0/0x750 drivers/tty/tty_buffer.c:445
process_scheduled_works+0x2b0/0x10d0 kernel/workqueue.c:3229
worker_thread+0x3dc/0x950 kernel/workqueue.c:3391
kthread+0x2a3/0x370 kernel/kthread.c:389
ret_from_fork+0x2d/0x70 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:257
Freed by task 3367:
kfree+0x126/0x420 mm/slub.c:4580
gsm_cleanup_mux+0x36c/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm]
gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm]
tty_ioctl+0x643/0x1100 drivers/tty/tty_io.c:2818
[Analysis]
gsm_msg on the tx_ctrl_list or tx_data_list of gsm_mux
can be freed by multi threads through ioctl,which leads
to the occurrence of uaf. Protect it by gsm tx lock.
Signed-off-by: Longlong Xia <[email protected]>
Cc: stable <[email protected]>
Suggested-by: Jiri Slaby <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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font.data may not initialize all memory spaces depending on the implementation
of vc->vc_sw->con_font_get. This may cause info-leak, so to prevent this, it
is safest to modify it to initialize the allocated memory space to 0, and it
generally does not affect the overall performance of the system.
Cc: [email protected]
Reported-by: [email protected]
Fixes: 05e2600cb0a4 ("VT: Bump font size limitation to 64x128 pixels")
Signed-off-by: Jeongjun Park <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Fix error checking with xa_store() (Matthe Auld)
- Fix missing freq restore on GSC load error (Vinay)
- Fix wedged_mode file permission (Matt Roper)
- Fix use-after-free in ct communication (Matthew Auld)
Signed-off-by: Dave Airlie <[email protected]>
From: Lucas De Marchi <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/jri65tmv3bjbhqhxs5smv45nazssxzhtwphojem4uufwtjuliy@gsdhlh6kzsdy
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Since kvfree() already checks if its argument is NULL, an additional
check before calling kvfree() is unnecessary and can be removed.
Remove both and the following Coccinelle/coccicheck warnings reported by
ifnullfree.cocci:
WARNING: NULL check before some freeing functions is not needed
WARNING: NULL check before some freeing functions is not needed
Signed-off-by: Thorsten Blum <[email protected]>
Signed-off-by: Zack Rusin <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Short summary of fixes pull:
fbdev-dma:
- Only clean up deferred I/O if instanciated
nouveau:
- dmem: Fix privileged error in copy engine channel; Fix possible
data leak in migrate_to_ram()
- gsp: Fix coding style
sched:
- Avoid leaking lockdep map
v3d:
- Stop active perfmon before destroying it
vc4:
- Stop active perfmon before destroying it
xe:
- Drop GuC submit_wq pool
Signed-off-by: Dave Airlie <[email protected]>
From: Thomas Zimmermann <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- HDCP refcount fix
Signed-off-by: Dave Airlie <[email protected]>
From: Joonas Lahtinen <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into clk-fixes
Pull a Samsung clk driver fix from Krzysztof Kozlowski:
Add missing sentinel in of_device_id table so the code iterating over it
will not go over the size of an array.
* tag 'samsung-clk-fixes-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
clk: samsung: Fix out-of-bound access of of_match_node()
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth and netfilter.
Current release - regressions:
- dsa: sja1105: fix reception from VLAN-unaware bridges
- Revert "net: stmmac: set PP_FLAG_DMA_SYNC_DEV only if XDP is
enabled"
- eth: fec: don't save PTP state if PTP is unsupported
Current release - new code bugs:
- smc: fix lack of icsk_syn_mss with IPPROTO_SMC, prevent null-deref
- eth: airoha: update Tx CPU DMA ring idx at the end of xmit loop
- phy: aquantia: AQR115c fix up PMA capabilities
Previous releases - regressions:
- tcp: 3 fixes for retrans_stamp and undo logic
Previous releases - always broken:
- net: do not delay dst_entries_add() in dst_release()
- netfilter: restrict xtables extensions to families that are safe,
syzbot found a way to combine ebtables with extensions that are
never used by userspace tools
- sctp: ensure sk_state is set to CLOSED if hashing fails in
sctp_listen_start
- mptcp: handle consistently DSS corruption, and prevent corruption
due to large pmtu xmit"
* tag 'net-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits)
MAINTAINERS: Add headers and mailing list to UDP section
MAINTAINERS: consistently exclude wireless files from NETWORKING [GENERAL]
slip: make slhc_remember() more robust against malicious packets
net/smc: fix lacks of icsk_syn_mss with IPPROTO_SMC
ppp: fix ppp_async_encode() illegal access
docs: netdev: document guidance on cleanup patches
phonet: Handle error of rtnl_register_module().
mpls: Handle error of rtnl_register_module().
mctp: Handle error of rtnl_register_module().
bridge: Handle error of rtnl_register_module().
vxlan: Handle error of rtnl_register_module().
rtnetlink: Add bulk registration helpers for rtnetlink message handlers.
net: do not delay dst_entries_add() in dst_release()
mptcp: pm: do not remove closing subflows
mptcp: fallback when MPTCP opts are dropped after 1st data
tcp: fix mptcp DSS corruption due to large pmtu xmit
mptcp: handle consistently DSS corruption
net: netconsole: fix wrong warning
net: dsa: refuse cross-chip mirroring operations
net: fec: don't save PTP state if PTP is unsupported
...
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'map' is allocated using devm_* which takes care of freeing the allocated
data, but in error paths there is a call to pinctrl_utils_free_map()
which also does kfree(map) which leads to a double free.
Use kcalloc() instead of devm_kcalloc() as freeing is manually handled.
Fixes: a29d8e93e710 ("pinctrl: sophgo: add support for CV1800B SoC")
Signed-off-by: Harshit Mogalapalli <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
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Currently if condition (!bo and !vmw_kms_srf_ok()) was met
we go to err_out with ret == 0.
err_out dereferences vfb if ret == 0, but in our case vfb is still NULL.
Fix this by assigning sensible error to ret.
Found by Linux Verification Center (linuxtesting.org) with SVACE
Signed-off-by: Nikolay Kuratov <[email protected]>
Cc: [email protected]
Fixes: 810b3e1683d0 ("drm/vmwgfx: Support topology greater than texture size")
Signed-off-by: Zack Rusin <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Do not validate format equality for the non 3d cases to allow xrgb to
argb copies and make sure the dx binding flags are only used
on dx compatible surfaces.
Fixes basic 2d kms setup on configurations without 3d. There's little
practical benefit to it because kms framebuffer coherence is disabled
on configurations without 3d but with those changes the code actually
makes sense.
v2: Remove the now unused format variable
Signed-off-by: Zack Rusin <[email protected]>
Fixes: d6667f0ddf46 ("drm/vmwgfx: Fix handling of dumb buffers")
Cc: Broadcom internal kernel review list <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # v6.9+
Cc: Maaz Mombasawala <[email protected]>
Cc: Martin Krastev <[email protected]>
Reviewed-by: Martin Krastev <[email protected]>
Reviewed-by: Maaz Mombasawala <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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