In rare cases, when the test environment is very slow, some endpoints
tests can fail because some expected events have not been seen.
Because the tests are expecting a long on-going connection, and they are
not waiting for the end of the transfer, it is fine to have a longer
timeout, and even go over the default one. This connection will be
killed at the end, after the verifications: increasing the timeout
doesn't change anything, apart from avoiding it to end before the end of
the verifications.
To play it safe, all endpoints tests not waiting for the end of the
transfer are now having a longer timeout: 2 minutes.
The Fixes commit was making the connection longer, but still, the
default timeout would have stopped it after 1 minute, which might not be
enough in very slow environments.
Fixes: 6457595db9 ("selftests: mptcp: join: endpoints: longer transfer")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-8-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
After recent fixes like the parent commit, and "selftests: mptcp:
connect: trunc: read all recv data", the two fastclose subtests no
longer look flaky any more.
It then feels fine to remove these flaky marks, to no longer ignore
these subtests in case of errors.
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-7-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The CI reports sporadic failures of the fastclose self-tests. The root
cause is a duplicate reset, not carrying the relevant MPTCP option.
In the failing scenario the bad reset is received by the peer before
the fastclose one, preventing the reception of the latter.
Indeed there is window of opportunity at fastclose time for the
following race:
mptcp_do_fastclose
__mptcp_close_ssk
__tcp_close()
tcp_set_state() [1]
tcp_send_active_reset() [2]
After [1] the stack will send reset to in-flight data reaching the now
closed port. Such reset may race with [2].
Address the issue explicitly sending a single reset on fastclose before
explicitly moving the subflow to close status.
Fixes: d21f834855 ("mptcp: use fastclose on more edge scenarios")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/596
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-6-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
With the current fastclose implementation, the mptcp_do_fastclose()
helper is in charge of two distinct actions: send the fastclose reset
and cleanup the subflows.
Formally decouple the two steps, ensuring that mptcp explicitly closes
all the subflows after the mentioned helper.
This will make the upcoming fix simpler, and allows dropping the 2nd
argument from mptcp_destroy_common(). The Fixes tag is then the same as
in the next commit to help with the backports.
Fixes: d21f834855 ("mptcp: use fastclose on more edge scenarios")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-5-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In case of DSS corruption, the MPTCP protocol tries to avoid the subflow
reset if fallback is possible. Such corruptions happen in the receive
path; to ensure fallback is possible the stack additionally needs to
check for OoO data, otherwise the fallback will break the data stream.
Fixes: e32d262c89 ("mptcp: handle consistently DSS corruption")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/598
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-4-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
I'm observing very frequent self-tests failures in case of fallback when
running on a CONFIG_PREEMPT kernel.
The root cause is that subflow_sched_work_if_closed() closes any subflow
as soon as it is half-closed and has no incoming data pending.
That works well for regular subflows - MPTCP needs bi-directional
connectivity to operate on a given subflow - but for fallback socket is
race prone.
When TCP peer closes the connection before the MPTCP one,
subflow_sched_work_if_closed() will schedule the MPTCP worker to
gracefully close the subflow, and shortly after will do another schedule
to inject and process a dummy incoming DATA_FIN.
On CONFIG_PREEMPT kernel, the MPTCP worker can kick-in and close the
fallback subflow before subflow_sched_work_if_closed() is able to create
the dummy DATA_FIN, unexpectedly interrupting the transfer.
Address the issue explicitly avoiding closing fallback subflows on when
the peer is only half-closed.
Note that, when the subflow is able to create the DATA_FIN before the
worker invocation, the worker will change the msk state before trying to
close the subflow and will skip the latter operation as the msk will not
match anymore the precondition in __mptcp_close_subflow().
Fixes: f09b0ad55a ("mptcp: close subflow when receiving TCP+FIN")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-3-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The rcv window is shared among all the subflows. Currently, MPTCP sync
the TCP-level rcv window with the MPTCP one at tcp_transmit_skb() time.
The above means that incoming data may sporadically observe outdated
TCP-level rcv window and being wrongly dropped by TCP.
Address the issue checking for the edge condition before queuing the
data at TCP level, and eventually syncing the rcv window as needed.
Note that the issue is actually present from the very first MPTCP
implementation, but backports older than the blamed commit below will
range from impossible to useless.
Before:
$ nstat -n; sleep 1; nstat -z TcpExtBeyondWindow
TcpExtBeyondWindow 14 0.0
After:
$ nstat -n; sleep 1; nstat -z TcpExtBeyondWindow
TcpExtBeyondWindow 0 0.0
Fixes: fa3fe2b150 ("mptcp: track window announced to peer")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-2-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mptcp_cleanup_rbuf() needs to know the last most recent, mptcp-level
rcv_wnd sent, and such information is tracked into the msk->old_wspace
field, updated at ack transmission time by mptcp_write_options().
Fallback socket do not add any mptcp options, such helper is never
invoked, and msk->old_wspace value remain stale. That in turn makes
ack generation at recvmsg() time quite random.
Address the issue ensuring mptcp_write_options() is invoked even for
fallback sockets, and just update the needed info in such a case.
The issue went unnoticed for a long time, as mptcp currently overshots
the fallback socket receive buffer autotune significantly. It is going
to change in the near future.
Fixes: e3859603ba ("mptcp: better msk receive window updates")
Cc: stable@vger.kernel.org
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/594
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251118-net-mptcp-misc-fixes-6-18-rc6-v1-1-806d3781c95f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Scanning can be offloaded to the firmware. To that end, the driver
prepares a list of channels to scan, including periodic visits back to
the operating channel, and sends the list to the firmware.
When the channel list is too long to fit in a single H2C message, the
driver splits the list, sends the first part, and tells the firmware to
scan. When the scan is complete, the driver sends the next part of the
list and tells the firmware to scan.
When the last channel that fit in the H2C message is the operating
channel something seems to go wrong in the firmware. It will
acknowledge receiving the list of channels but apparently it will not
do anything more. The AP can't be pinged anymore. The driver still
receives beacons, though.
One way to avoid this is to split the list of channels before the
operating channel.
Affected devices:
* RTL8851BU with firmware 0.29.41.3
* RTL8832BU with firmware 0.29.29.8
* RTL8852BE with firmware 0.29.29.8
The commit 57a5fbe39a ("wifi: rtw89: refactor flow that hw scan handles channel list")
is found by git blame, but it is actually to refine the scan flow, but not
a culprit, so skip Fixes tag.
Reported-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Closes: https://lore.kernel.org/linux-wireless/0abbda91-c5c2-4007-84c8-215679e652e1@gmail.com/
Cc: stable@vger.kernel.org # 6.16+
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/c1e61744-8db4-4646-867f-241b47d30386@gmail.com
Commit f1eb4e792b ("spi: spi-cadence-quadspi: Enable pm runtime earlier
to avoid imbalance") relocated code but missed updating the error handling
path associated with it.
Prior to the relocation, runtime pm was enabled after the code-block
associated with 'cqspi_request_mmap_dma()', due to which, the error
handling for the same didn't require invoking 'pm_runtime_disable()'.
Post refactoring, runtime pm has been enabled before the code-block and
when an error is encountered, jumping to 'probe_dma_failed' doesn't
invoke 'pm_runtime_disable()'. This leads to a race condition wherein
'cqspi_runtime_suspend()' is invoked while the error handling path executes
in parallel. The resulting error is the following:
clk:103:0 already disabled
WARNING: drivers/clk/clk.c:1188 at clk_core_disable+0x80/0xa0, CPU#1: kworker/u8:0/12
[TRIMMED]
pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : clk_core_disable+0x80/0xa0
lr : clk_core_disable+0x80/0xa0
[TRIMMED]
Call trace:
clk_core_disable+0x80/0xa0 (P)
clk_core_disable_lock+0x88/0x10c
clk_disable+0x24/0x30
cqspi_probe+0xa3c/0xae8
[TRIMMED]
The error is due to the second invocation of 'clk_disable_unprepare()' on
'cqspi->clk' in the error handling within 'cqspi_probe()', with the first
invocation being within 'cqspi_runtime_suspend()'.
Fix this by correcting the error handling.
Fixes: f1eb4e792b ("spi: spi-cadence-quadspi: Enable pm runtime earlier to avoid imbalance")
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://patch.msgid.link/20251119152545.2591651-1-s-vadapalli@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The MMIO_REMAP BO is a special 4K IO page that does not have a ttm_tt
behind it. However, amdgpu_ttm_tt_pde_flags() was treating it like
normal TT/doorbell/preempt memory and unconditionally accessed
ttm->caching. For the MMIO_REMAP BO, ttm is NULL, so this leads to a
NULL pointer dereference when computing PDE flags.
Fix this by checking that ttm is non-NULL before reading ttm->caching.
This prevents the crash for MMIO_REMAP and also makes the code more
defensive if other BOs ever come through without a ttm_tt.
Fixes: fb5a52dbe9 ("drm/amdgpu: Implement TTM handling for MMIO_REMAP placement")
Suggested-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Jesse Zhang <Jesse.Zhang@amd.com>
Tested-by: Jesse Zhang <Jesse.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 0db94da5a0)
This fixes sparse mappings (aka. partially resident textures).
Check the correct flags.
Since a recent refactor, the code works with uAPI flags (for
mapping buffer objects), and not PTE (page table entry) flags.
Fixes: 6716a823d1 ("drm/amdgpu: rework how PTE flags are generated v3")
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 8feeab26c8)
[Why]
Accoreding to CP updated to RS64 on gfx11,
WRITE_DATA with PREEMPTION_META_MEMORY(dst_sel=8) is illegal for CP FW.
That packet is used for MCBP on F32 based system.
So it would lead to incorrect GRBM write and FW is not handling that
extra case correctly.
[How]
With gfx11 rs64 enabled, skip emit de meta data.
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 8366cd442d)
Cc: stable@vger.kernel.org
During the suspend sequence VPE is already going to be power gated
as part of vpe_suspend(). It's unnecessary to call during calls to
amdgpu_device_set_pg_state().
It actually can expose a race condition with the firmware if s0i3
sequence starts as well. Drop these calls.
Cc: Peyton.Lee@amd.com
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2a6c826cfe)
Cc: stable@vger.kernel.org
In commit 0345691b24 ("tick/rcu: Stop allowing RCU_SOFTIRQ in idle") the
new function report_idle_softirq() was created by breaking code out of the
existing can_stop_idle_tick() for kernels v5.18 and newer.
In doing so, the code essentially went from this form:
if (A) {
static int ratelimit;
if (ratelimit < 10 && !C && A&D) {
pr_warn("NOHZ tick-stop error: ...");
ratelimit++;
}
return false;
}
to a new function:
static bool report_idle_softirq(void)
{
static int ratelimit;
if (likely(!A))
return false;
if (ratelimit < 10)
return false;
...
pr_warn("NOHZ tick-stop error: local softirq work is pending, handler #%02x!!!\n",
pending);
ratelimit++;
return true;
}
commit a7e282c777 ("tick/rcu: Fix bogus ratelimit condition") realized
ratelimit was essentially set to zero instead of ten, and hence *no*
softirq pending messages would ever be issued, but "fixed" it as:
- if (ratelimit < 10)
+ if (ratelimit >= 10)
return false;
However, this fix introduced another issue:
When ratelimit is greater than or equal 10, even if A is true, it will
directly return false. While ratelimit in the original code was only used
to control printing and will not affect the return value.
Restore the original logic and restrict ratelimit to control the printk and
not the return value.
Fixes: 0345691b24 ("tick/rcu: Stop allowing RCU_SOFTIRQ in idle")
Fixes: a7e282c777 ("tick/rcu: Fix bogus ratelimit condition")
Signed-off-by: Wen Yang <wen.yang@linux.dev>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://patch.msgid.link/20251119174525.29470-1-wen.yang@linux.dev
Just a couple fixes for the A523 family. A couple clocks are marked as
critical, and the lower bound of the audio PLL was lowered to match
the datasheet.
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Merge tag 'sunxi-clk-fixes-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes
Pull Allwinner clk driver fixes from Chen-Yu Tsai:
Just a couple fixes for the A523 family. A couple clocks are marked as
critical, and the lower bound of the audio PLL was lowered to match
the datasheet.
* tag 'sunxi-clk-fixes-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
clk: sunxi-ng: sun55i-a523-ccu: Lower audio0 pll minimum rate
clk: sunxi-ng: sun55i-a523-r-ccu: Mark bus-r-dma as critical
clk: sunxi-ng: Mark A523 bus-r-cpucfg clock as critical
create_in_format_blob() is either supposed to return a valid
pointer or an error, but never NULL. The caller will dereference
the blob when it is not an error, and thus will oops if NULL
returned. Return proper error values in the failure cases.
Cc: stable@vger.kernel.org
Cc: Arun R Murthy <arun.r.murthy@intel.com>
Fixes: 0d6dcd741c ("drm/plane: modify create_in_formats to acommodate async")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251112233030.24117-2-ville.syrjala@linux.intel.com
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
These are mainly devicetree fixes for the arm platforms from Rockchips
NXP, ASpeed and Broadcom, addressing issues with accidental overclocking,
pinctrl, network and dtc warnings.
There are additional fixes for regressions with the i.MX reset and memory
controller drivers as well as the Tegra memory controller driver
Minor updates to the MAINTAINERS file, tee documentation and defconfigs
bring those up to date with recent changes elsewhere.
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Merge tag 'soc-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"These are mainly devicetree fixes for the arm platforms from Rockchips
NXP, ASpeed and Broadcom, addressing issues with accidental
overclocking, pinctrl, network and dtc warnings.
There are additional fixes for regressions with the i.MX reset and
memory controller drivers as well as the Tegra memory controller
driver.
Minor updates to the MAINTAINERS file, tee documentation and
defconfigs bring those up to date with recent changes elsewhere"
* tag 'soc-fixes-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
MAINTAINERS: sync omap devicetree maintainers with omap platform
MAINTAINERS: Update Krzysztof Kozlowski's email
arm64: dts: rockchip: fix PCIe 3.3V regulator voltage on orangepi-5
arm64: dts: rockchip: disable HS400 on RK3588 Tiger
arm64: dts: rockchip: drop reset from rk3576 i2c9 node
tee: <uapi/linux/tee.h: fix all kernel-doc issues
arm64: dts: rockchip: Fix USB power enable pin for BTT CB2 and Pi2
arm64: dts: broadcom: bcm2712: rpi-5: Add ethernet0 alias
arm64: dts: broadcom: Assign clock rates in eth node for RPi5
reset: imx8mp-audiomix: Fix bad mask values
ARM: dts: BCM53573: Fix address of Luxul XAP-1440's Ethernet PHY
arm64: defconfig: Fix V3D deferred probe timeout
arm64: dts: rockchip: Fix vccio4-supply on rk3566-pinetab2
arm64: dts: rockchip: include rk3399-base instead of rk3399 in rk3399-op1
arm64: dts: imx8mp-kontron: Fix USB OTG role switching
arm64: dts: imx95: Fix MSI mapping for PCIe endpoint nodes
arm64: dts: imx8-ss-img: Avoid gpio0_mipi_csi GPIOs being deferred
arm: imx_v6_v7_defconfig: enable ext4 directly
memory: tegra210: Fix incorrect client ids
arm64: dts: rockchip: Fix indentation on rk3399 haikou demo dtso
...
Luke Wang found a problem in the pwm-adp5585 driver about how register
information is mapped to the different device variants. This effectively
made the driver non-functional. That didn't pop up before because the
driver change was developped as part of a bigger mfd series and the
original author didn't retest PWM functionality after it was tested in
an earlier revision but then reworked.
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Merge tag 'pwm/for-6.18-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm fix from Uwe Kleine-König:
"Correct mismatched pwm chip info for adp5585.
Luke Wang found a problem in the pwm-adp5585 driver about how register
information is mapped to the different device variants. This
effectively made the driver non-functional.
That didn't pop up before because the driver change was developed as
part of a bigger mfd series and the original author didn't retest PWM
functionality after it was tested in an earlier revision but then
reworked"
* tag 'pwm/for-6.18-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
pwm: adp5585: Correct mismatched pwm chip info
Pause, Asym_Pause and Autoneg bits are not set when pl->supported is
initialized, so these link modes will not work for the fixed-link. This
leads to a TCP performance degradation issue observed on the i.MX943
platform.
The switch CPU port of i.MX943 is connected to an ENETC MAC, this link
is a fixed link and the link speed is 2.5Gbps. And one of the switch
user ports is the RGMII interface, and its link speed is 1Gbps. If the
flow-control of the fixed link is not enabled, we can easily observe
the iperf performance of TCP packets is very low. Because the inbound
rate on the CPU port is greater than the outbound rate on the user port,
the switch is prone to congestion, leading to the loss of some TCP
packets and requiring multiple retransmissions.
Solving this problem should be as simple as setting the Asym_Pause and
Pause bits. The reason why the Autoneg bit needs to be set, Russell
has gave a very good explanation in the thread [1], see below.
"As the advertising and lp_advertising bitmasks have to be non-empty,
and the swphy reports aneg capable, aneg complete, and AN enabled, then
for consistency with that state, Autoneg should be set. This is how it
was prior to the blamed commit."
Fixes: de7d3f87be ("net: phylink: Use phy_caps_lookup for fixed-link configuration")
Link: https://lore.kernel.org/aRjqLN8eQDIQfBjS@shell.armlinux.org.uk # [1]
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20251117102943.1862680-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The "soft-reserved" memory regions (EFI_MEMORY_SP) are added to the
memblock.reserved, but not to the memblock.memory. It causes
memblock_estimated_nr_free_pages() to return a value smaller value than
expected, or if it underflows, an extremely large value.
Calculate the number of estimated free pages using
memblock_reserved_kern_size() instead of memblock_reserved_size() to fix
the issue.
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Merge tag 'fixes-2025-11-19' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock fix from Mike Rapoport:
"Fix memblock_estimated_nr_free_pages() for soft-reserved memory
The "soft-reserved" memory regions (EFI_MEMORY_SP) are added to the
memblock.reserved, but not to the memblock.memory. It causes
memblock_estimated_nr_free_pages() to return a value smaller value
than expected, or if it underflows, an extremely large value.
Calculate the number of estimated free pages using
memblock_reserved_kern_size() instead of memblock_reserved_size() to
fix the issue"
* tag 'fixes-2025-11-19' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock: fix memblock_estimated_nr_free_pages() for soft-reserved memory
Add the missing unevaluatedProperties to disallow extra properties on
the '^conf' nodes.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
ACPI 6.6 specification for EINJV2 appends an extra structure to
the end of the existing struct set_error_type_with_address.
Several issues showed up in testing.
1) Initialization was broken by an earlier fix [1] since is_v2 is only
set while performing an injection, not during initialization.
2) A buggy BIOS provided invalid "revision" and "length" for the
extension structure. Add several sanity checks.
3) When injecting legacy error types on an EINJV2 capable system,
don't copy the component arrays.
Fixes: 6c70585149 ("ACPI: APEI: EINJ: Check if user asked for EINJV2 injection") # [1]
Fixes: b47610296d ("ACPI: APEI: EINJ: Enable EINJv2 error injections")
Signed-off-by: Tony Luck <tony.luck@intel.com>
[ rjw: Changelog edits ]
Cc: 6.17+ <stable@vger.kernel.org> # 6.17+
Link: https://patch.msgid.link/20251119012712.178715-1-tony.luck@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Due to an upcoming change in my professional situation, I will need to
start using my kernel.org address. Update all my MAINTAINERS entries.
Signed-off-by: Bartosz Golaszewski <brgl@kernel.org>
Link: https://lore.kernel.org/r/20251118121816.23018-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
With the final call to fput() on a file descriptor, the release action
may be deferred and scheduled on a work queue. The reference count of
that descriptor is still zero and it must not be used. It's possible
that a GPIO change, we want to notify the user-space about, happens
AFTER the reference count on the file descriptor associated with the
character device went down to zero but BEFORE the .release() callback
was called from the workqueue and so BEFORE we unregistered from the
notifier.
Using the regular get_file() routine in this situation triggers the
following warning:
struct file::f_count incremented from zero; use-after-free condition present!
So use the get_file_active() variant that will return NULL on file
descriptors that have been or are being released.
Fixes: 40b7c49950 ("gpio: cdev: put emitting the line state events on a workqueue")
Reported-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Closes: https://lore.kernel.org/all/5d605f7fc99456804911403102a4fe999a14cc85.camel@siemens.com/
Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Link: https://lore.kernel.org/r/20251117-gpio-cdev-get-file-v1-1-28a16b5985b8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The 'pmu' pointer cannot be NULL, as it is taken as a pointer to an array.
Remove the superfluous NULL check.
Found by Coverity: CID#1497507.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Liang Kan <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20251119091538.825307-1-jirislaby@kernel.org
Kuniyuki Iwashima says:
====================
af_unix: Fix SO_PEEK_OFF bug in unix_stream_read_generic().
Miao Wang reported a bug of SO_PEEK_OFF on AF_UNIX SOCK_STREAM socket.
Patch 1 fixes the bug and Patch 2 adds a new selftest to cover the case.
====================
Link: https://patch.msgid.link/20251117174740.3684604-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The test covers various cases to verify SO_PEEK_OFF behaviour
for all AF_UNIX socket types.
two_chunks_blocking and two_chunks_overlap_blocking reproduce
the issue mentioned in the previous patch.
Without the patch, the two tests fail:
# RUN so_peek_off.stream.two_chunks_blocking ...
# so_peek_off.c:121:two_chunks_blocking:Expected 'bbbb' == 'aaaabbbb'.
# two_chunks_blocking: Test terminated by assertion
# FAIL so_peek_off.stream.two_chunks_blocking
not ok 3 so_peek_off.stream.two_chunks_blocking
# RUN so_peek_off.stream.two_chunks_overlap_blocking ...
# so_peek_off.c:159:two_chunks_overlap_blocking:Expected 'bbbb' == 'aaaabbbb'.
# two_chunks_overlap_blocking: Test terminated by assertion
# FAIL so_peek_off.stream.two_chunks_overlap_blocking
not ok 5 so_peek_off.stream.two_chunks_overlap_blocking
With the patch, all tests pass:
# PASSED: 15 / 15 tests passed.
# Totals: pass:15 fail:0 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251117174740.3684604-3-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Miao Wang reported a bug of SO_PEEK_OFF on AF_UNIX SOCK_STREAM
socket.
The unexpected behaviour is triggered when the peek offset is
larger than the recv queue and the thread is unblocked by new
data.
Let's assume a socket which has "aaaa" in the recv queue and
the peek offset is 4.
First, unix_stream_read_generic() reads the offset 4 and skips
the skb(s) of "aaaa" with the code below:
skip = max(sk_peek_offset(sk, flags), 0); /* @skip is 4. */
do {
...
while (skip >= unix_skb_len(skb)) {
skip -= unix_skb_len(skb);
...
skb = skb_peek_next(skb, &sk->sk_receive_queue);
if (!skb)
goto again; /* @skip is 0. */
}
The thread jumps to the 'again' label and goes to sleep since
new data has not arrived yet.
Later, new data "bbbb" unblocks the thread, and the thread jumps
to the 'redo:' label to restart the entire process from the first
skb in the recv queue.
do {
...
redo:
...
last = skb = skb_peek(&sk->sk_receive_queue);
...
again:
if (skb == NULL) {
...
timeo = unix_stream_data_wait(sk, timeo, last,
last_len, freezable);
...
goto redo; /* @skip is 0 !! */
However, the peek offset is not reset in the path.
If the buffer size is 8, recv() will return "aaaabbbb" without
skipping any data, and the final offset will be 12 (the original
offset 4 + peeked skbs' length 8).
After sleeping in unix_stream_read_generic(), we have to fetch the
peek offset again.
Let's move the redo label before mutex_lock(&u->iolock).
Fixes: 9f389e3567 ("af_unix: return data from multiple SKBs on recv() with MSG_PEEK flag")
Reported-by: Miao Wang <shankerwangmiao@gmail.com>
Closes: https://lore.kernel.org/netdev/3B969F90-F51F-4B9D-AB1A-994D9A54D460@gmail.com/
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251117174740.3684604-2-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'ipsec-2025-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
pull request (net): ipsec 2025-11-18
1) Misc fixes for xfrm_state creation/modification/deletion.
Patchset from Sabrina Dubroca.
2) Fix inner packet family determination for xfrm offloads.
From Jianbo Liu.
3) Don't push locally generated packets directly to L2 tunnel
mode offloading, they still need processing from the standard
xfrm path. From Jianbo Liu.
4) Fix memory leaks in xfrm_add_acquire for policy offloads and policy
security contexts. From Zilin Guan.
* tag 'ipsec-2025-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
xfrm: fix memory leak in xfrm_add_acquire()
xfrm: Prevent locally generated packets from direct output in tunnel mode
xfrm: Determine inner GSO type from packet inner protocol
xfrm: Check inner packet family directly from skb_dst
xfrm: check all hash buckets for leftover states during netns deletion
xfrm: set err and extack on failure to create pcpu SA
xfrm: call xfrm_dev_state_delete when xfrm_state_migrate fails to add the state
xfrm: make state as DEAD before final put when migrate fails
xfrm: also call xfrm_state_delete_tunnel at destroy time for states that were never added
xfrm: drop SA reference in xfrm_state_update if dir doesn't match
====================
Link: https://patch.msgid.link/20251118085344.2199815-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The function devl_rate_nodes_destroy is documented to "Unset parent for
all rate objects". However, it was only calling the driver-specific
`rate_leaf_parent_set` or `rate_node_parent_set` ops and decrementing
the parent's refcount, without actually setting the
`devlink_rate->parent` pointer to NULL.
This leaves a dangling pointer in the `devlink_rate` struct, which cause
refcount error in netdevsim[1] and mlx5[2]. In addition, this is
inconsistent with the behavior of `devlink_nl_rate_parent_node_set`,
where the parent pointer is correctly cleared.
This patch fixes the issue by explicitly setting `devlink_rate->parent`
to NULL after notifying the driver, thus fulfilling the function's
documented behavior for all rate objects.
[1]
repro steps:
echo 1 > /sys/bus/netdevsim/new_device
devlink dev eswitch set netdevsim/netdevsim1 mode switchdev
echo 1 > /sys/bus/netdevsim/devices/netdevsim1/sriov_numvfs
devlink port function rate add netdevsim/netdevsim1/test_node
devlink port function rate set netdevsim/netdevsim1/128 parent test_node
echo 1 > /sys/bus/netdevsim/del_device
dmesg:
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 8 PID: 1530 at lib/refcount.c:31 refcount_warn_saturate+0x42/0xe0
CPU: 8 UID: 0 PID: 1530 Comm: bash Not tainted 6.18.0-rc4+ #1 NONE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:refcount_warn_saturate+0x42/0xe0
Call Trace:
<TASK>
devl_rate_leaf_destroy+0x8d/0x90
__nsim_dev_port_del+0x6c/0x70 [netdevsim]
nsim_dev_reload_destroy+0x11c/0x140 [netdevsim]
nsim_drv_remove+0x2b/0xb0 [netdevsim]
device_release_driver_internal+0x194/0x1f0
bus_remove_device+0xc6/0x130
device_del+0x159/0x3c0
device_unregister+0x1a/0x60
del_device_store+0x111/0x170 [netdevsim]
kernfs_fop_write_iter+0x12e/0x1e0
vfs_write+0x215/0x3d0
ksys_write+0x5f/0xd0
do_syscall_64+0x55/0x10f0
entry_SYSCALL_64_after_hwframe+0x4b/0x53
[2]
devlink dev eswitch set pci/0000:08:00.0 mode switchdev
devlink port add pci/0000:08:00.0 flavour pcisf pfnum 0 sfnum 1000
devlink port function rate add pci/0000:08:00.0/group1
devlink port function rate set pci/0000:08:00.0/32768 parent group1
modprobe -r mlx5_ib mlx5_fwctl mlx5_core
dmesg:
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 7 PID: 16151 at lib/refcount.c:31 refcount_warn_saturate+0x42/0xe0
CPU: 7 UID: 0 PID: 16151 Comm: bash Not tainted 6.17.0-rc7_for_upstream_min_debug_2025_10_02_12_44 #1 NONE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
RIP: 0010:refcount_warn_saturate+0x42/0xe0
Call Trace:
<TASK>
devl_rate_leaf_destroy+0x8d/0x90
mlx5_esw_offloads_devlink_port_unregister+0x33/0x60 [mlx5_core]
mlx5_esw_offloads_unload_rep+0x3f/0x50 [mlx5_core]
mlx5_eswitch_unload_sf_vport+0x40/0x90 [mlx5_core]
mlx5_sf_esw_event+0xc4/0x120 [mlx5_core]
notifier_call_chain+0x33/0xa0
blocking_notifier_call_chain+0x3b/0x50
mlx5_eswitch_disable_locked+0x50/0x110 [mlx5_core]
mlx5_eswitch_disable+0x63/0x90 [mlx5_core]
mlx5_unload+0x1d/0x170 [mlx5_core]
mlx5_uninit_one+0xa2/0x130 [mlx5_core]
remove_one+0x78/0xd0 [mlx5_core]
pci_device_remove+0x39/0xa0
device_release_driver_internal+0x194/0x1f0
unbind_store+0x99/0xa0
kernfs_fop_write_iter+0x12e/0x1e0
vfs_write+0x215/0x3d0
ksys_write+0x5f/0xd0
do_syscall_64+0x53/0x1f0
entry_SYSCALL_64_after_hwframe+0x4b/0x53
Fixes: d755598450 ("devlink: Allow setting parent node of rate objects")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1763381149-1234377-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
s32_pmx_gpio_request_enable() does not initialize the newly-allocated
gpio_pin_config::list before adding it to s32_pinctrl::gpio_configs.
This could result in a linked list corruption.
Initialize the new list_head with INIT_LIST_HEAD() to fix this.
Fixes: fd84aaa817 ("pinctrl: add NXP S32 SoC family support")
Signed-off-by: Jared Kangas <jkangas@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
s32_pinctrl_desc is allocated with devm_kmalloc(), but not all of its
fields are initialized. Notably, num_custom_params is used in
pinconf_generic_parse_dt_config(), resulting in intermittent allocation
errors, such as the following splat when probing i2c-imx:
WARNING: CPU: 0 PID: 176 at mm/page_alloc.c:4795 __alloc_pages_noprof+0x290/0x300
[...]
Hardware name: NXP S32G3 Reference Design Board 3 (S32G-VNP-RDB3) (DT)
[...]
Call trace:
__alloc_pages_noprof+0x290/0x300 (P)
___kmalloc_large_node+0x84/0x168
__kmalloc_large_node_noprof+0x34/0x120
__kmalloc_noprof+0x2ac/0x378
pinconf_generic_parse_dt_config+0x68/0x1a0
s32_dt_node_to_map+0x104/0x248
dt_to_map_one_config+0x154/0x1d8
pinctrl_dt_to_map+0x12c/0x280
create_pinctrl+0x6c/0x270
pinctrl_get+0xc0/0x170
devm_pinctrl_get+0x50/0xa0
pinctrl_bind_pins+0x60/0x2a0
really_probe+0x60/0x3a0
[...]
__platform_driver_register+0x2c/0x40
i2c_adap_imx_init+0x28/0xff8 [i2c_imx]
[...]
This results in later parse failures that can cause issues in dependent
drivers:
s32g-siul2-pinctrl 4009c240.pinctrl: /soc@0/pinctrl@4009c240/i2c0-pins/i2c0-grp0: could not parse node property
s32g-siul2-pinctrl 4009c240.pinctrl: /soc@0/pinctrl@4009c240/i2c0-pins/i2c0-grp0: could not parse node property
[...]
pca953x 0-0022: failed writing register: -6
i2c i2c-0: IMX I2C adapter registered
s32g-siul2-pinctrl 4009c240.pinctrl: /soc@0/pinctrl@4009c240/i2c2-pins/i2c2-grp0: could not parse node property
s32g-siul2-pinctrl 4009c240.pinctrl: /soc@0/pinctrl@4009c240/i2c2-pins/i2c2-grp0: could not parse node property
i2c i2c-1: IMX I2C adapter registered
s32g-siul2-pinctrl 4009c240.pinctrl: /soc@0/pinctrl@4009c240/i2c4-pins/i2c4-grp0: could not parse node property
s32g-siul2-pinctrl 4009c240.pinctrl: /soc@0/pinctrl@4009c240/i2c4-pins/i2c4-grp0: could not parse node property
i2c i2c-2: IMX I2C adapter registered
Fix this by initializing s32_pinctrl_desc with devm_kzalloc() instead of
devm_kmalloc() in s32_pinctrl_probe(), which sets the previously
uninitialized fields to zero.
Fixes: fd84aaa817 ("pinctrl: add NXP S32 SoC family support")
Signed-off-by: Jared Kangas <jkangas@redhat.com>
Tested-by: Jan Petrous (OSS) <jan.petrous@oss.nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Improve the cleanup on releasing PTP resources in error path.
The error case might happen either at the driver probe and PTP
feature initialization or on PTP restart (errors in reset handling, NVM
update etc). In both cases, calls to PF PTP cleanup (ice_ptp_cleanup_pf
function) and 'ps_lock' mutex deinitialization were missed.
Additionally, ptp clock was not unregistered in the latter case.
Keep PTP state as 'uninitialized' on init to distinguish between error
scenarios and to avoid resource release duplication at driver removal.
The consequence of missing ice_ptp_cleanup_pf call is the following call
trace dumped when ice_adapter object is freed (port list is not empty,
as it is required at this stage):
[ T93022] ------------[ cut here ]------------
[ T93022] WARNING: CPU: 10 PID: 93022 at
ice/ice_adapter.c:67 ice_adapter_put+0xef/0x100 [ice]
...
[ T93022] RIP: 0010:ice_adapter_put+0xef/0x100 [ice]
...
[ T93022] Call Trace:
[ T93022] <TASK>
[ T93022] ? ice_adapter_put+0xef/0x100 [ice
33d2647ad4f6d866d41eefff1806df37c68aef0c]
[ T93022] ? __warn.cold+0xb0/0x10e
[ T93022] ? ice_adapter_put+0xef/0x100 [ice
33d2647ad4f6d866d41eefff1806df37c68aef0c]
[ T93022] ? report_bug+0xd8/0x150
[ T93022] ? handle_bug+0xe9/0x110
[ T93022] ? exc_invalid_op+0x17/0x70
[ T93022] ? asm_exc_invalid_op+0x1a/0x20
[ T93022] ? ice_adapter_put+0xef/0x100 [ice
33d2647ad4f6d866d41eefff1806df37c68aef0c]
[ T93022] pci_device_remove+0x42/0xb0
[ T93022] device_release_driver_internal+0x19f/0x200
[ T93022] driver_detach+0x48/0x90
[ T93022] bus_remove_driver+0x70/0xf0
[ T93022] pci_unregister_driver+0x42/0xb0
[ T93022] ice_module_exit+0x10/0xdb0 [ice
33d2647ad4f6d866d41eefff1806df37c68aef0c]
...
[ T93022] ---[ end trace 0000000000000000 ]---
[ T93022] ice: module unloaded
Fixes: e800654e85 ("ice: Use ice_adapter for PTP shared data instead of auxdev")
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Both used to go through Tony's branches, so lets keep things together.
This was missed at the time when Co-Maintainers were added.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Link: https://patch.msgid.link/20240915195321.1071967-1-andreas@kemnade.info
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20251118192652.316198-1-khilman@baylibre.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
cpu OPPs from rk3576 (not supported in newer vendor TF-A and never
supported in upstream TF-A). As well as some DTS validation fixes
and one pinctrl fix for the odroid-m1.
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Merge tag 'v6.18-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes
Regulator/supply fixes for a number of boards, removed too fast
cpu OPPs from rk3576 (not supported in newer vendor TF-A and never
supported in upstream TF-A). As well as some DTS validation fixes
and one pinctrl fix for the odroid-m1.
* tag 'v6.18-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: fix PCIe 3.3V regulator voltage on orangepi-5
arm64: dts: rockchip: disable HS400 on RK3588 Tiger
arm64: dts: rockchip: drop reset from rk3576 i2c9 node
arm64: dts: rockchip: Fix USB power enable pin for BTT CB2 and Pi2
arm64: dts: rockchip: Fix vccio4-supply on rk3566-pinetab2
arm64: dts: rockchip: include rk3399-base instead of rk3399 in rk3399-op1
arm64: dts: rockchip: Fix indentation on rk3399 haikou demo dtso
arm64: dts: rockchip: Make RK3588 GPU OPP table naming less generic
arm64: dts: rockchip: Drop 'rockchip,grf' prop from tsadc on rk3328
arm64: dts: rockchip: Remove non-functioning CPU OPPs from RK3576
arm64: dts: rockchip: Fix PCIe power enable pin for BigTreeTech CB2 and Pi2
arm64: dts: rockchip: Set correct pinctrl for I2S1 8ch TX on odroid-m1
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Current gu2host handler registered as MSI-X vector 0 and as per bspec for
a msix vector 0 interrupt, the driver must check the legacy registers
190008(TILE_INT_REG), 190060h (GT INTR Identity Reg 0) and other registers
mentioned in "Interrupt Service Routine Pseudocode" otherwise it will block
the next interrupts. To overcome this issue replacing guc2host handler
with legacy xe_irq_handler.
Fixes: da889070be ("drm/xe/irq: Separate MSI and MSI-X flows")
Bspec: 62357
Signed-off-by: Venkata Ramana Nayana <venkata.ramana.nayana@intel.com>
Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Link: https://patch.msgid.link/20251107083141.2080189-1-venkata.ramana.nayana@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit c34a14bce7)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
There are 2 identical "select DRM_EXEC" lines for DRM_XE.
Remove one to clean up the configuration.
Fixes: d490ecf577 ("drm/xe: Rework xe_exec and the VM rebind worker to use the drm_exec helper")
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Nitin Gote <nitin.r.gote@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251110232657.1807998-2-shuicheng.lin@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit b1aa02acd0)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
The MOCS kunit test calls KUNIT_ASSERT_TRUE_MSG() with a condition of
'true;' this prevents the assertion from ever failing. Replace
KUNIT_ASSERT_TRUE_MSG with KUNIT_FAIL_AND_ABORT to get the intended
failure behavior in cases where forcewake was not acquired successfully.
Fixes: 51c0ee84e4 ("drm/xe/tests/mocs: Hold XE_FORCEWAKE_ALL for LNCF regs")
Cc: Tejas Upadhyay <tejas.upadhyay@intel.com>
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patch.msgid.link/20251113234038.2256106-2-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit 9be4f0f687)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
If user provides a large value (such as 0x80) for parameter
prefetch_mem_region_instance in vm_bind ioctl, it will cause
BIT(prefetch_region) overflow as below:
"
------------[ cut here ]------------
UBSAN: shift-out-of-bounds in drivers/gpu/drm/xe/xe_vm.c:3414:7
shift exponent 128 is too large for 64-bit type 'long unsigned int'
CPU: 8 UID: 0 PID: 53120 Comm: xe_exec_system_ Tainted: G W 6.18.0-rc1-lgci-xe-kernel+ #200 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: ASUS System Product Name/PRIME Z790-P WIFI, BIOS 0812 02/24/2023
Call Trace:
<TASK>
dump_stack_lvl+0xa0/0xc0
dump_stack+0x10/0x20
ubsan_epilogue+0x9/0x40
__ubsan_handle_shift_out_of_bounds+0x10e/0x170
? mutex_unlock+0x12/0x20
xe_vm_bind_ioctl.cold+0x20/0x3c [xe]
...
"
Fix it by validating prefetch_region before the BIT() usage.
v2: Add Closes and Cc stable kernels. (Matt)
Reported-by: Koen Koning <koen.koning@intel.com>
Reported-by: Peter Senna Tschudin <peter.senna@linux.intel.com>
Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6478
Cc: <stable@vger.kernel.org> # v6.8+
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20251112181005.2120521-2-shuicheng.lin@intel.com
(cherry picked from commit 8f565bdd14)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
- Only adjust the ID registers when no irqchip has been created once
per VM run, instead of doing it once per vcpu, as this otherwise
triggers a pretty bad conbsistency check failure in the sysreg code.
- Make sure the per-vcpu Fine Grain Traps are computed before we load
the system registers on the HW, as we otherwise start running without
anything set until the first preemption of the vcpu.
x86:
- Fix selftests failure on AMD, checking for an optimization that was not
happening anymore.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Arm:
- Only adjust the ID registers when no irqchip has been created once
per VM run, instead of doing it once per vcpu, as this otherwise
triggers a pretty bad conbsistency check failure in the sysreg code
- Make sure the per-vcpu Fine Grain Traps are computed before we load
the system registers on the HW, as we otherwise start running
without anything set until the first preemption of the vcpu
x86:
- Fix selftests failure on AMD, checking for an optimization that was
not happening anymore"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Fix redundant updates of LBR MSR intercepts
KVM: arm64: VHE: Compute fgt traps before activating them
KVM: arm64: Finalize ID registers only once per VM
pcache_meta_find_latest() leaves whatever it last copied into the
caller’s buffer even when it returns NULL. For cache_info_init(),
that meant cache->cache_info could still contain CRC-bad garbage when
no valid metadata exists, leading later initialization paths to read
bogus flags.
Explicitly memset cache->cache_info in cache_info_init_default()
so new-cache paths start from a clean slate. The default sequence
number assignment becomes redundant with this reset, so it drops out.
Signed-off-by: Li Chen <chenl311@chinatelecom.cn>
Reviewed-by: Zheng Gu <cengku@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
pcache_meta_find_latest() already computes the metadata address as
meta_addr. Reuse that instead of recomputing.
Signed-off-by: Li Chen <chenl311@chinatelecom.cn>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
