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Nord is a SoC family from Qualcomm designed as the next generation of
Lemans series. SA8797P is the automotive variant of Nord, where platform
resources such as clocks, regulators, interconnects, etc. are managed
by firmware through SCMI.
Add SoC ID for Nord SA8797P.
Signed-off-by: Deepti Jaggi <deepti.jaggi@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260427003531.229671-2-shengchao.guo@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Recognize the SM7750 SoC which is an Eliza SoC variant.
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260412-sm7550-id-v1-2-958a673ff791@pm.me
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Document the ID for SM7750, an Eliza SoC variant that can be found on
the Nothing Phone (4a) Pro.
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260412-sm7550-id-v1-1-958a673ff791@pm.me
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Add PMAU0102 found on Nord boards to pmic_models array.
Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260419131523.1232835-1-shengchao.guo@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Add the PMIV0102 and PMIV0104 to the pmic_models array.
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Link: https://lore.kernel.org/r/20260413-add-pmic-ids-v1-1-1f40b8773ef8@pm.me
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Apply these options to selected QAM to TX signal under requirements.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260511070148.25257-7-pkshih@realtek.com
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Make hardware to consider which QAM (data rate) to apply BB wrapper
parameters, which are set by other registers.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260511070148.25257-6-pkshih@realtek.com
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Set main options to control BB wrap functions. For example, enable options
by data bandwidth or channel bandwidth.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260511070148.25257-5-pkshih@realtek.com
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Apply different settings to out-of-band DPD (digital pre-distortion) by
bandwidth, as hardware defines separate registers.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260511070148.25257-4-pkshih@realtek.com
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Control the out-of-band DPD (digital pre-distortion) to ensure out-of-band
signal under requirement.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260511070148.25257-3-pkshih@realtek.com
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The BB wrap is a hardware block to control TX power. Since RTL8922D has
many variants with different CID and RFE types, prepare flow and dummy
struct adopt to configuration functions for coming patches.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260511070148.25257-2-pkshih@realtek.com
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This patch fixes the "bounds refinement with single-value tnum on umin"
verifier selftest. This selftest was introduced in commit e6ad477d1bf8
("selftests/bpf: Test refinement of single-value tnum") to cover the
logic from __update_reg64_bounds(), introduced in commit efc11a667878
("bpf: Improve bounds when tnum has a single possible value"). However,
the test still passes if that last commit is reverted.
The test is supposed to cover the case when the tnum and u64 range (or
cnum64 now) overlap in a single value. __update_reg64_bounds() detects
that case and refines the bounds to a known constant. However, the
constants for the test were poorly chosen and the bounds get refined to
a known constant even without __update_reg64_bounds(). The code is as
follows:
0: call bpf_get_prandom_u32#7 ; R0=scalar()
1: r0 |= 224 ; R0=scalar(umin=umin32=224,var_off=(0xe0; 0xffffffffffffff1f))
2: r0 &= 240 ; R0=scalar(smin=umin=smin32=umin32=224,smax=umax=smax32=umax32=240,var_off=(0xe0; 0x10))
3: if r0 == 0xf0 goto pc+2 ; R0=224
After instruction 3, we have u64=[0xe0; 0xef] and tnum=(0xe0; 0x10).
__reg_bound_offset() is able to deduce a new tnum from the u64,
tnum=(0xe0; 0x0f), which combined with the existing tnum gives us a
constant: 0xe0 or 224.
We can easily fix this by choosing different starting bounds. If we make
it u64=[0xe1; 0xf0], then __reg_bound_offset() doesn't have any impact.
Fixes: e6ad477d1bf8 ("selftests/bpf: Test refinement of single-value tnum")
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/be2dc2c3d85120286e60b3029b3338fff339f942.1779121582.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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vmtest.sh does not document a -k option and does not handle it in the
getopts case statement. However, the getopts optstring includes k, which
causes the script to accept -k silently instead of reporting it as an
invalid option.
Remove k from the optstring so unsupported options are rejected through
the existing invalid-option path.
Fixes: c9709f52386d ("bpf: Helper script for running BPF presubmit tests")
Signed-off-by: Roman Kvasnytskyi <roman@kvasnytskyi.net>
Acked-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/20260516120625.80839-1-roman@kvasnytskyi.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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When running vmtest.sh with static linking, the bpftool_map_access
selftests fail. These selftests are calling the bpftool binary in
tools/sbin/ directly, which results in the following error:
error while loading shared libraries: libLLVM.so.21.1:
cannot open shared object file: No such file or directory
To fix this, we need to also build bpftool statically. That can be done
by setting EXTRA_LDFLAGS=-static.
Fixes: 2d96bbdfd3b5 ("selftests/bpf: convert test_bpftool_map_access.sh into test_progs framework")
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/r/714556da329c812988010ffe53173d9152570a78.1778669303.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2026-05-15 (ice, ixgbevf, igc, e1000e)
For ice:
Jake fixes a mismatch in locking around wait queue usage.
Jose Ignacio Tornos Martinez adjusts allowed lower bound for VF data
buffer size to accommodate low MTU sizes.
Marcin adjusts for -EEXIST to not trigger error path when the promisc
filter already exists as part of adding VLAN Ids.
Grzegorz fixes a few issues related to PTP. He adds locking to
ice_start_phy_timer_eth56g() to protect proper register programming.
Fixes the PTP lock used in 2xNAC configuration to always be the primary
and restores PTP configuration on ethtool channel changes.
For ixgbevf:
Michael Bommarito sets freed skb pointer to NULL to prevent
use-after-free.
For igc:
Kohei Enju resolves a couple of issues reported by Sashiko; setting
buffer type for an SMD skb and freeing skb on error of
igc_fpe_init_tx_descriptor().
====================
Link: https://patch.msgid.link/20260515182419.1597859-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When igc_fpe_init_tx_descriptor() fails, no one takes care of an
allocated skb, leaking it. [1]
Use dev_kfree_skb_any() on failure.
Tested on an I226 adapter with the following command, while injecting
faults in igc_fpe_init_tx_descriptor() to trigger the error path.
# ethtool --set-mm $DEV verify-enabled on tx-enabled on pmac-enabled on
[1]
unreferenced object 0xffff888113c6cdc0 (size 224):
...
backtrace (crc be3d3fda):
kmem_cache_alloc_node_noprof+0x3b1/0x410
__alloc_skb+0xde/0x830
igc_fpe_xmit_smd_frame.isra.0+0xad/0x1b0
igc_fpe_send_mpacket+0x37/0x90
ethtool_mmsv_verify_timer+0x15e/0x300
Cc: stable@vger.kernel.org
Fixes: 5422570c0010 ("igc: add support for frame preemption verification")
Signed-off-by: Kohei Enju <kohei@enjuk.jp>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Faizal Rahim <faizal.abdul.rahim@linux.intel.com>
Tested-by: Avigail Dahan <avigailx.dahan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-10-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Sashiko pointed out that igc_fpe_init_smd_frame() initializes
igc_tx_buffer fields for an SMD skb, but does not set the buffer type:
https://sashiko.dev/#/patchset/20260415025226.114115-1-kohei%40enjuk.jp
Since igc_tx_buffer entries are reused, a stale XDP or XSK type can
remain and make TX completion use the wrong cleanup path.
Set the buffer type to IGC_TX_BUFFER_TYPE_SKB.
Fixes: 5422570c0010 ("igc: add support for frame preemption verification")
Signed-off-by: Kohei Enju <kohei@enjuk.jp>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Avigail Dahan <avigailx.dahan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-9-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ixgbevf_clean_rx_irq() prunes frames whose source MAC matches the VF's
own address (VEPA multicast workaround) by freeing the skb and
continuing to the next descriptor:
dev_kfree_skb_irq(skb);
continue;
The skb pointer is declared outside the while loop and persists across
iterations. Because the continue skips the "skb = NULL" reset at the
bottom of the loop, the next iteration enters the "else if (skb)" path
and calls ixgbevf_add_rx_frag() on the freed skb, dereferencing
skb_shinfo(skb)->nr_frags - a use-after-free in NAPI softirq context.
The sibling driver iavf already handles this correctly by nulling the
pointer before continuing. Apply the same pattern here.
I do not have ixgbevf hardware; the bug was found by static analysis
(scan_drop_continue_loops.py + semgrep drop_continue_in_loop, multi-tool
corroboration with the highest score in the scan). The UAF was confirmed
under KASAN by loading a test module that reproduces the exact code
pattern (alloc skb, kfree_skb, then read skb_shinfo(skb)->nr_frags):
BUG: KASAN: slab-use-after-free in ixgbevf_uaf_test_init+0x100/0x1000
Read of size 8 at addr 000000006163ae78 by task insmod/30
freed 208-byte region [000000006163adc0, 000000006163ae90)
QEMU emulates igb (82576) but not ixgbe (82599), and the igbvf VF
driver does not include the VEPA source pruning path, so a full
end-to-end reproduction with emulated hardware was not possible.
Fixes: bad17234ba70 ("ixgbevf: Change receive model to use double buffered page based receives")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-8-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When ethtool -L changes queue counts, ice_vsi_recfg_qs() closes and
rebuilds the VSI, reallocating Rx rings. The newly allocated rings have
ptp_rx cleared, so RX hardware timestamps are no longer attached to skb
until hwtstamp configuration is applied again.
Restore timestamp mode after ice_vsi_open() in the queue reconfiguration
path, matching reset/rebuild behavior and ensuring newly rebuilt Rx rings
have PTP RX timestamping re-enabled.
Testing hints:
- run ptp4l application in client synchronization mode:
ptp4l -i ethX -m -s
- run PTP traffic
- change queue number on ethX netdev interface:
ethtool -L ethX combined new_queue_size
- observe ptp4l output
- expected result: no "received DELAY_REQ without timestamp" messages
Fixes: 77a781155a65 ("ice: enable receive hardware timestamping")
Cc: stable@vger.kernel.org
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Alexander Nowlin <alexander.nowlin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-7-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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For E825 2xNAC configurations, PTP semaphore operations must hit the
primary NAC register block so both sides coordinate on the same lock.
Commit e2193f9f9ec9 ("ice: enable timesync operation on 2xNAC E825
devices") updated other primary-only PTP register accesses to
use the primary NAC on non-primary functions, but left ice_ptp_lock()
and ice_ptp_unlock() operating on the local NAC. As a result, secondary
NAC PTP paths can take a different semaphore than the primary side.
Select the primary hardware in ice_ptp_lock() and ice_ptp_unlock() when
the current function is not primary, keeping semaphore operations
symmetric and consistent with the rest of the 2xNAC PTP register access
path.
Fixes: e2193f9f9ec9 ("ice: enable timesync operation on 2xNAC E825 devices")
Reviewed-by: Arkadiusz Kubalewski <Arkadiusz.kubalewski@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Alexander Nowlin <alexander.nowlin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-6-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ice_start_phy_timer_eth56g() programs TIMETUS registers and issues
INIT_INCVAL without holding the global PTP semaphore.
This allows concurrent PTP command paths to interleave with PHY timer
start, which can make the sequence fail and leave timer initialization
inconsistent.
Take the PTP lock around TIMETUS registers programming and INIT_INCVAL
command execution, and make sure the lock is released on all error paths.
Keep the subsequent sync step outside of this critical section, since
ice_sync_phy_timer_eth56g() takes the same semaphore internally.
Fixes: 7cab44f1c35f ("ice: Introduce ETH56G PHY model for E825C products")
Reviewed-by: Arkadiusz Kubalewski <Arkadiusz.kubalewski@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Alexander Nowlin <alexander.nowlin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-5-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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There are at least two paths through which VSI promiscuous mode can be
independently configured via ice_fltr_set_vsi_promisc():
- ice_vlan_rx_add_vid() (netdev op)
- ice_service_task() -> ... -> ice_set_promisc()
Both paths may try to program promiscuous mode concurrently. One such
scenario is:
1. Add ice netdev to bond
2. Add the bond netdev to bridge
3. ice netdev enters allmulticast mode (IFF_ALLMULTI)
4. Service task programs promisc mode filter
5. Bridge -> bond calls ice_vlan_rx_add_vid()
Crucially, ice_vlan_rx_add_vid() fails if ice_fltr_set_vsi_promisc()
returns any error, including -EEXIST. This causes VLAN filtering setup
to fail on the bond interface. ice_set_promisc() already handles -EEXIST
correctly.
Fix by adding the same -EEXIST check to ice_vlan_rx_add_vid(): if the
promisc filter is already programmed, continue without returning error.
Fixes: 1273f89578f2 ("ice: Fix broken IFF_ALLMULTI handling")
Cc: stable@vger.kernel.org
Signed-off-by: Marcin Szycik <marcin.szycik@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-4-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ice driver's VF queue configuration validation rejects
databuffer_size values below 1024 bytes, which prevents VFs from
using MTU values below 871 bytes.
The iavf driver calculates databuffer_size based on the MTU using:
databuffer_size = ALIGN(MTU + LIBETH_RX_LL_LEN, 128)
where LIBETH_RX_LL_LEN = 26 (ETH_HLEN + 2*VLAN_HLEN + ETH_FCS_LEN).
For MTU values below 871:
MTU 870: 870 + 26 = 896, aligned to 128 = 896 (< 1024, rejected)
MTU 871: 871 + 26 = 897, aligned to 128 = 1024 (>= 1024, accepted)
The 1024-byte minimum seems unnecessarily restrictive, because the hardware
supports databuffer_size as low as 128 bytes (the alignment boundary),
which should allow MTU values down to the standard minimum of 68 bytes.
I haven't found the reason why the limit was configured in the commit
9c7dd7566d18 ("ice: add validation in OP_CONFIG_VSI_QUEUES VF message"), so
with no more information and since it is working, change the minimum
databuffer_size validation from 1024 to 128 bytes to allow standard low
MTU values while still preventing invalid configurations.
Fixes: 9c7dd7566d18 ("ice: add validation in OP_CONFIG_VSI_QUEUES VF message")
cc: stable@vger.kernel.org
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-3-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 50327223a8bb ("ice: add lock to protect low latency interface")
introduced a wait queue used to protect the low latency timer interface.
The queue is used with the wait_event_interruptible_locked_irq macro, which
unlocks the wait queue lock while sleeping. The irq variant uses
spin_lock_irq and spin_unlock_irq to manage this. The wait queue lock was
previously locked using spin_lock_irqsave. This difference in lock variants
could lead to issues, since wait_event would unlock the wait queue and
restore interrupts while sleeping.
The ice_read_phy_tstamp_ll_e810() function is ultimately called through
ice_read_phy_tstamp, which is called from ice_ptp_process_tx_tstamp or
ice_ptp_clear_unexpected_tx_ready. The former is called through the
miscellaneous IRQ thread function, while the latter is called from the
service task work queue thread. Neither of these functions has interrupts
disabled, so use spin_lock_irq instead of spin_lock_irqsave.
Fixes: 50327223a8bb ("ice: add lock to protect low latency interface")
Cc: stable@vger.kernel.org
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netdev/20250109181823.77f44c69@kernel.org/
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20260515182419.1597859-2-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Update several Anacapa SGPIO line names to match the existing platform
hardware design and the signal names consumed by userspace monitoring.
The previous names did not match the actual Anacapa SGPIO usage. Some
lines were named as CPU or CPU power-good signals, but they are wired
and used on Anacapa for EDSFF presence, EDSFF power-good, boot EDSFF
presence, and thermal-trip assertion monitoring.
Correct the mappings as follows:
PWRGD_PVDDCR_SOC_P0 -> L_PRSNT_EDSFF0_N
PWRGD_PVDDIO_P0 -> L_PRSNT_EDSFF1_N
PWRGD_PVDDIO_MEM_S3_P0 -> R_PRSNT_EDSFF2_N
PWRGD_CHMP_CPU0_FPGA -> R_PRSNT_EDSFF3_N
PWRGD_CHIL_CPU0_FPGA -> HPM_EDSFF_PG
EAM2_CPU_MOD_PWR_GD_R -> PRSNT_EDSFF_BOOT_N
CPU0_SP7R1 -> L_EDSFF0_PG
CPU0_SP7R2 -> L_EDSFF1_PG
CPU0_SP7R3 -> R_EDSFF2_PG
CPU0_SP7R4 -> R_EDSFF3_PG
HPM_AMC_THERMTRIP_R_L -> AMC_THERMTRIP_ASSERT
FM_CPU0_THERMTRIP_N -> CPU_THERMTRIP_ASSERT
The left-side EDSFF slots are numbered as EDSFF0 and EDSFF1 to match
the platform slot numbering used by userspace. The thermtrip names are
also updated to describe the asserted condition monitored by userspace
instead of the raw active-low signal names.
This is a naming correction for the existing Anacapa hardware design.
There is no new board revision or underlying hardware change involved.
[arj: Tweak capitalisation in commit subject, rewrap paragraph]
Signed-off-by: Rex Fu <Rex.Fu@amd.com>
Link: https://patch.msgid.link/20260518-anacapa-sgpio-edsff-thermtrip-v2-1-e43b1847b2dc@amd.com
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
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Leon Hwang says:
====================
bpf: Follow-up fixes for BPF syscall common attributes
Address sashiko reviews for BPF syscall common attributes series.
1. The tailing padding bytes in struct bpf_common_attr should be
checked. [1]
2. There was a concurrent regression in syscall.c::map_create(). [2]
3. OPTS_VALID() was missing to validate the nested struct bpf_log_opts
in libbpf. [3]
4. The token_fd should be -1 to avoid a valid token fd in test. [4]
A test is added to verify the fix #1.
The fix #2 is hard to be verified by test. So, I decide not to add a test
for it to avoid over-engineering.
Decide not to add a test for fix #3 to avoid over-engineering, as the
fix looks really simple.
Links:
[1] https://lore.kernel.org/bpf/20260513224823.6494FC19425@smtp.kernel.org/
[2] https://lore.kernel.org/bpf/20260512233658.CEED7C2BCB0@smtp.kernel.org/
[3] https://lore.kernel.org/bpf/20260512235629.C5CABC2BCB0@smtp.kernel.org/
[4] https://lore.kernel.org/bpf/20260513003358.55836C2BCB0@smtp.kernel.org/
====================
Link: https://patch.msgid.link/20260518145446.6794-1-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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common attributes
Add a test to verify that the tailing padding 4 bytes are checked in
syscall.c::__sys_bpf() using bpf_check_uarg_tail_zero().
Without the fix, the test fails with:
test_common_attr_padding:FAIL:syscall unexpected syscall: actual 4 >= expected 0
#213/12 map_create_failure/common_attr_padding:FAIL
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260518145446.6794-6-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Because 0xFF can be an open BPF token fd in the test runner that will fail
test_invalid_token_fd(), change token_fd from 0xFF to -1 to avoid such
test failure.
Fixes: f675483cac1d ("selftests/bpf: Add tests to verify map create failure log")
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260518145446.6794-5-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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There should be an OPTS_VALID() check for log_opts before extracting its
fields.
If no such OPTS_VALID() check and an application compiled against a future
libbpf header passes a log_opts with new, non-zero fields to libbpf.so,
those fields will be ignored silently.
Fixes: 702259006f93 ("libbpf: Add syscall common attributes support for map_create")
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260518145446.6794-4-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Because of the 8-byte alignment, the compiler will pad struct
bpf_common_attr to 24 bytes. That said, sizeof(attr_common) is 24 instead
of 20.
When check tail zero using sizeof(attr_common) in
bpf_check_uarg_tail_zero(), there will be 4 bytes that won't be checked.
To also check the padding 4 bytes, replace sizeof(attr_common) with
offsetofend(struct bpf_common_attr, log_true_size).
Fixes: f28771c0691b ("bpf: Extend BPF syscall with common attributes support")
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260518145446.6794-2-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Bobby Eshleman says:
====================
net: devmem: support devmem with netkit devices
This series enables TCP devmem TX through netkit devices.
Netkit now supports queue leasing. A physical NIC's RX queue can be
leased to a netkit guest interface inside a container namespace. This
gives the container a devmem-capable data path on the RX side (bind-rx,
etc...). On the TX side, the container process binds to its netkit guest
interface and sends traffic that netkit redirects (via BPF or ip
forwarding) to the physical NIC for DMA.
Two things in the existing devmem TX path prevent this from working:
1. validate_xmit_unreadable_skb() requires dev->netmem_tx before it will
forward a dmabuf-backed (unreadable) skb. This protects skbs from
landing on devices that don't have the IOMMU mappings for the backing
dmabuf or that don't speak netmem. Netkit, however, does not support
DMA, doesn't attempt to read unreadable skb pages and so doesn't
break netmem (it is pure skb routing and redirection). It is
functionally capable of routing unreadable skbs, but there is no way
for the TX validation pathway to distinguish between a device that
will actually attempt DMA-ing the skb and another device
(like netkit) that does not DMA but also does not break
netmem.
2. bind_tx_doit uses the bound device as the DMA device. When the user
binds devmem TX to the netkit guest, the bind handler attempts to
create DMA mappings against netkit, which has no DMA capability and
no IOMMU mappings.
This series solves these problems as follows:
1. Extend netmem_tx to two bits, assigned to one of three values:
NETMEM_TX_NONE - netmem not supported
NETMEM_TX_DMA - netmem supported and performs DMA
NETMEM_TX_NO_DMA - netmem supported, but does not DMA
With these bits, phys devices can set NETMEM_TX_DMA and devices like
netkit set NETMEM_TX_NO_DMA. The validation TX path ensures that any
DMA-capable netdev exactly matches the bound device, guaranteeing the
correct mapping of the bound dmabuf. The validation TX path also
allows devices with NETMEM_TX_NO_DMA to pass, knowing these devices
will not misuse netmem or run into IOMMU faults. After redirection or
routing and the skb finally makes its way through the stack to a
physical device's TX path, the above NETMEM_TX_DMA check is performed
again to guarantee the device has the appropriate binding/mappings.
2. On TX bind, the bind handler recognizes NETMEM_TX_NO_DMA devices and
finds the phys TX device and binds to that instead. For the netkit
case, if it has been leased a queue from a DMA-capable device
already, then the bind action is performed on the DMA-capable device
instead and the dmabuf is mapped correctly.
====================
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-0-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add nk_devmem.py with four tests for TCP devmem through a netkit device.
These tests are just duplicates of the original devmem tests, with some
adjusted parameters such as telling ncdevmem to avoid device setup
(since it only has access to netkit, not a phys device).
Each test uses NetDrvContEnv with primary_rx_redirect=True to set up the
BPF redirect program on the primary netkit interface, then calls a
shared run_*() helper which probes for devmem support and configures
the NIC (HDS, RSS, queue lease) before driving the test. NIC state is
restored per-test via defer() callbacks registered inside the helper.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-8-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When sending from a namespace that has access to a netkit device with a
leased queue, the nk primary in the host namespace needs to redirect its
RX to the physical device. This patch adds that redirection bpf program
and teaches the harness to install it.
Add primary_rx_redirect=False parameter to NetDrvContEnv.__init__().
When enabled, _attach_primary_rx_redirect_bpf() attaches a new BPF TC
program (nk_primary_rx_redirect.bpf.c) to the primary (host-side) netkit
interface. The program redirects non-ICMPv6 IPv6 packets to the physical
NIC via bpf_redirect_neigh(), with the physical ifindex configured via
the .bss map. ICMPv6 is left on the host's netkit primary so IPv6
neighbor discovery still work locally.
Extract _find_bss_map_id() from _attach_bpf() into a reusable helper so
other BPF attachment methods can use it.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-7-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Adding netkit-based devmem tests is a straight-forward copy of devmem
test commands plus some args for the nk cases, so this patch breaks out
these command builders into helpers used by both.
Though we tried to avoid libraries to avoid increasing the barrier of
entry/complexity (see selftests/drivers/net/README.md, section "Avoid
libraries and frameworks"), factoring out these functions seemed like
the lesser of two evils in this case of using the same commands, just
with slightly different args per environment.
I experimented with just having all of the tests in the same file to
avoid having helpers in a library file, but because ksft_run() is
limited to a single call per file, and the new tests will require
different environments (NetDrvContEnv/NetDrvEpEnv), it would have been
necessary to have each test set up its own environment instead of
sharing one for the entire ksft_run() run. This came at the cost of
ballooning the test time (from under 5s to 30s on my test system), so to
strike a balance these tests were placed in separate files so they could
keep a shared environment across a single ksft_run() run shared across
all tests using the same env type (introduced in subsequent patches).
The helpers work transparently with both plain and netkit environments
by inspecting cfg for netkit-specific attributes (netns, nk_queue,
etc...).
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-6-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Subsequent patches will use the _nk_guest_ifname as a public attr for
setting up devmem. Rename to nk_guest_ifname to avoid angering the
linter about the '_' prefix being used for a non-private attr.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-5-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a -n (skip_config) flag that causes ncdevmem to skip NIC
configuration when operating as an RX server. When -n is passed,
ncdevmem skips configuring header split, RSS, and flow steering, as well
as their teardown on exit.
This allows ksft tests to pre-configure the NIC in the host namespace
before launching ncdevmem in the guest namespace. This is needed for
netkit devmem tests where the test harness namespace has direct access
to the NIC and the ncdevmem namespace does not.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-4-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When a netkit virtual device leases queues from a physical NIC, devmem
TX bindings created on the netkit device must still result in the dmabuf
being mapped for dma by the physical device. This patch accomplishes
this by teaching the bind handler to search for the underlying
DMA-capable device by looking it up via leased rx queues. The function
netdev_find_netmem_tx_dev(), used for finding the underlying DMA-capable
device, can be extended to support other non-netkit NETMEM_TX_NO_DMA
devices in the future if needed.
Additionally, this patch extends validate_xmit_unreadable_skb() to
support the netkit case, where the skb is validated twice: once on the
netkit guest device and again on the physical NIC after BPF redirect or
ip forwarding.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-3-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Some virtual devices like netkit (or ifb) never DMA and never touch frag
contents, they just forward the skb to another device. They are unable
to forward unreadable skbs, however, because they fail to pass TX
validation checks on dev->netmem_tx. The existing two-state
NETMEM_TX_NONE / NETMEM_TX_DMA doesn't give the TX validator enough
information to differentiate devices that will attempt DMA on the
unreadable skb from those that will simply route it untouched.
Add a third mode to the enum so drivers can indicate 1) if they have
netmem TX support, and 2) if they do, whether they are DMA-capable:
NETMEM_TX_NO_DMA - pass-through, device never DMAs
Widen dev->netmem_tx from a 1-bit field to 2 bits to fit the new value,
and declare netkit as NETMEM_TX_NO_DMA. Devmem TX support over these
devices comes in a follow-up patch.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-2-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Devices that support netmem TX previously set dev->netmem_tx = true.
This was checked in validate_xmit_unreadable_skb() to drop unreadable
skbs (skbs with dmabuf-backed frags) before they reach drivers that
would mishandle them or devices that would not have the iommu mappings
for them.
A subsequent patch will introduce a third state for virtual devices
that forward unreadable skbs without ever performing DMA on them. To
prepare for that, convert the boolean dev->netmem_tx into an enum:
NETMEM_TX_NONE - no netmem TX support (drop unreadable skbs)
NETMEM_TX_DMA - full support, device does DMA
Update the existing NIC drivers (bnxt, gve, mlx5, fbnic) and the
validators in net/core to use the new enum. No functional change.
Acked-by: Harshitha Ramamurthy <hramamurthy@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260514-tcp-dm-netkit-v5-1-408c59b91e66@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Tariq Toukan says:
====================
net/mlx5e: simplify and optimize napi poll flow
This series simplifies the mlx5e napi poll flow and reduces branching in
hot paths by leveraging existing dependencies between channel features.
Patch 1 avoids passing the full channel object to kTLS RX code paths
when only the async ICOSQ is needed, and slightly optimizes the common
flow in the pending resync handling logic.
Patch 2 further reduces branches in napi poll by relying on established
feature dependencies between XDP, async ICOSQ, XSK, and kTLS RX state.
====================
Link: https://patch.msgid.link/20260514111038.338251-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Do not pass channel just to extract the async ICOSQ.
It's already extracted, pass it.
Re-order the checks in mlx5e_ktls_rx_pending_resync_list to optimize the
common flow.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Link: https://patch.msgid.link/20260514111038.338251-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Reduce the number of branches in napi poll, based on the following list
of dependencies:
1. xsk_open=t only if c->xdp and c->async_icosq.
2. c->xdpsq only if c->xdp.
3. c->xdp implies c->async_icosq.
4. ktls_rx_was_enabled implies c->async_icosq.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Link: https://patch.msgid.link/20260514111038.338251-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf-tools fixes
"An usual sync-up for the header files and related code:
- copy headers that are used for perf trace syscall beautifier
- update the beautifier scripts according to the changes
- don't show differences in the headers by default"
* tag 'perf-tools-fixes-for-v7.1-2026-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf trace: Update beautifier script for clone flags
perf trace: Add beautifier script for fsmount flags
perf build: Add make check-headers target
perf trace: Sync uapi/linux/sched.h with the kernel source
perf trace: Sync uapi/linux/mount.h with the kernel source
perf trace: Sync uapi/linux/fs.h with the kernel source
perf trace: Sync linux/socket.h with the kernel source
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Fix a couple of undefined variables introduced by the patch to fix tearing
on ->remote_i_size and ->zero_point. For some reason, make W=1 with gcc
doesn't give undefined variable warnings (but clang does).
Fixes: 2c8f4742bb76 ("netfs: Fix potential for tearing in ->remote_i_size and ->zero_point")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202605031459.eX5UbO3K-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202605021450.ca5QGqLH-lkp@intel.com/
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Matthew Wilcox <willy@infradead.org>
cc: Christian Brauner <brauner@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The last user was removed in commit 72628da6d634 ("net: ks8851:
Remove ks8851_mll.c") which consolidated the driver into a
common implementation. No file includes this header.
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Link: https://patch.msgid.link/20260515184531.1515418-1-costa.shul@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter/IPVS fixes for net:
1) Fix small race windows in nf_ct_helper_log() when accessing helper,
from Florian Westphal.
2) Fix potential infinite loop and race conditions in IPVS caused by
frequent user-triggered service table changes, from Julia Anastasov.
3) Fix a race condition when dumping ipsets for restore,
from Jozsef Kadlecsik.
4) Fix inner transport offset in IPv6 in nft_inner when extension
headers come before the layer 4 transport header, from Yizhou Zhao.
5) Fix incorrect iteration over IPv4 ranges in several hash set types,
from Nan Li.
6) Fix incorrect order when restoring BH in nft_inner_restore_tun_ctx(),
from Florian Westphal.
7) Validate option array from ip6t_hbh checkpath() to fix an off-by-one
access, from Zhengchuan Liang.
8) Fix race condition between ipset list -terse and concurrent updates,
from Jozsef Kadlecisk.
9) Fix race condition when inserting elements into a hash bucket, also
from Jozsef.
10) Annotate access to first free slot in hashtable, from Jozsef Kadlecsik.
11) Ensure sufficient headroom in br_netfilter neigh transmission,
from Lorenzo Bianconi.
12) Hold reference on skb->dev in nfqueue exit path, bridge local input
is speciall since skb->dev != state->indev, allowing for net_device
to go away while packet is sitting in nfqueue. From Haoze Xie.
* tag 'nf-26-05-16' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_queue: hold bridge skb->dev while queued
netfilter: br_netfilter: Reallocate headroom if necessary in neigh_hh_bridge()
netfilter: ipset: annotate "pos" for concurrent readers/writers
netfilter: ipset: Fix data race between add and dump in all hash types
netfilter: ipset: Fix data race between add and list header in all hash types
netfilter: ip6t_hbh: reject oversized option lists
netfilter: nft_inner: release local_lock before re-enabling softirqs
netfilter: ipset: stop hash:* range iteration at end
netfilter: nft_inner: Fix IPv6 inner_thoff desync
netfilter: ipset: fix a potential dump-destroy race
ipvs: avoid possible loop in ip_vs_dst_event on resizing
netfilter: nf_conntrack_helper: fix possible null deref during error log
====================
Link: https://patch.msgid.link/20260516115627.967773-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The Kconfig prompts for the DIBS options read:
DIBS support (DIBS) [N/m/y/?]
intra-OS shortcut with dibs loopback (DIBS_LO) [N/y/?]
Clarify the DIBS prompt by expanding the acronym.
Capitalize the first character of the DIBS_LO prompt.
While at it, join the first two lines of the DIBS help text into a real
sentence.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Link: https://patch.msgid.link/9093259c43e5d1996965d1522562444419196a19.1778838921.git.geert+renesas@glider.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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arch/x86/include/asm/device.h is identical to
include/asm-generic/device.h, and therefore the x86-specific version
is unnecessary. Remove it.
[ dhansen: Minor note: It looks like if asm/foo.h does not exist that
the build system generates one that does a #include
<asm-generic/foo.h>. Thus, all that needs to be done is
remove the arch-specific one. ]
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://patch.msgid.link/20260517025713.97791-1-enelsonmoore@gmail.com
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Simon Wunderlich says:
====================
Here are various batman-adv bugfixes:
- fix tp_meter counter underflow during shutdown, by Luxiao Xu
- fix tp_meter tp_vars reference leak in receiver shutdown,
by Sven Eckelmann
- fix various translation table integer handling issues,
by Sven Eckelmann (3 patches)
- fix various translation table counter issues,
by Sven Eckelmann (3 patches)
- fix fragment reassembly length accounting, by Ruide Cao
- clear current gateway during teardown, by Ruijie Li
- handle forward allocation error in DAT, by Sven Eckelmann
- tp_meter: avoid use of uninitialized sender variables in tp_meter,
by Sven Eckelmann
- disallow unicast fragment in fragment, by Sven Eckelmann
- directly shut down tp_meter timer on cleanup, by Sven Eckelmann
* tag 'batadv-net-pullrequest-20260515' of https://git.open-mesh.org/batadv:
batman-adv: tp_meter: directly shut down timer on cleanup
batman-adv: frag: disallow unicast fragment in fragment
batman-adv: tp_meter: avoid use of uninit sender vars
batman-adv: dat: handle forward allocation error
batman-adv: clear current gateway during teardown
batman-adv: fix fragment reassembly length accounting
batman-adv: tt: prevent TVLV entry number overflow
batman-adv: tt: avoid empty VLAN responses
batman-adv: tt: fix TOCTOU race for reported vlans
batman-adv: tt: fix negative last_changeset_len
batman-adv: tt: fix negative tt_buff_len
batman-adv: tt: reject oversized local TVLV buffers
batman-adv: tp_meter: fix tp_vars reference leak in receiver shutdown
batman-adv: fix tp_meter counter underflow during shutdown
====================
Link: https://patch.msgid.link/20260515095540.325586-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Luiz Augusto von Dentz says:
====================
bluetooth pull request for net:
- af_bluetooth: serialize accept_q access
- L2CAP: ecred_reconfigure: send packed pdu, not stack pointer
- btmtk: accept too short WMT FUNC_CTRL events
- hci_qca: Convert timeout from jiffies to ms
* tag 'for-net-2026-05-14' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
Bluetooth: hci_qca: Convert timeout from jiffies to ms
Bluetooth: L2CAP: ecred_reconfigure: send packed pdu, not stack pointer
Bluetooth: btmtk: accept too short WMT FUNC_CTRL events
Bluetooth: serialize accept_q access
====================
Link: https://patch.msgid.link/20260514172340.1515042-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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