Drop reference to the 25MHz clock as it has nothing to do with connecting
the PHY and the MAC.
Add info about the reference clock direction between the PHY and the MAC
as it depends on the selected rmii mode.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jérémie Dautheribes <jeremie.dautheribes@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240305141309.127669-1-jeremie.dautheribes@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This driver has two separate reset sequence in different places:
- gpio/HW reset on start of ksz_switch_register()
- SW reset on start of ksz_setup()
The second one will overwrite drive strength configuration made in the
ksz_switch_register().
To fix it, move ksz_parse_drive_strength() from ksz_switch_register() to
ksz_setup().
Fixes: d67d7247f6 ("net: dsa: microchip: Add drive strength configuration")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20240304135612.814404-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Toke Høiland-Jørgensen says:
====================
Fix hash bucket overflow checks for 32-bit arches
Syzbot managed to trigger a crash by creating a DEVMAP_HASH map with a
large number of buckets because the overflow check relies on
well-defined behaviour that is only correct on 64-bit arches.
Fix the overflow checks to happen before values are rounded up in all
the affected map types.
v3:
- Keep the htab->n_buckets > U32_MAX / sizeof(struct bucket) check
- Use 1UL << 31 instead of U32_MAX / 2 + 1 as the constant to check
against
- Add patch to fix stackmap.c
v2:
- Fix off-by-one error in overflow check
- Apply the same fix to hashtab, where the devmap_hash code was copied
from (John)
Toke Høiland-Jørgensen (3):
bpf: Fix DEVMAP_HASH overflow check on 32-bit arches
bpf: Fix hashtab overflow check on 32-bit arches
bpf: Fix stackmap overflow check on 32-bit arches
kernel/bpf/devmap.c | 11 ++++++-----
kernel/bpf/hashtab.c | 14 +++++++++-----
kernel/bpf/stackmap.c | 9 ++++++---
3 files changed, 21 insertions(+), 13 deletions(-)
====================
Link: https://lore.kernel.org/r/20240307120340.99577-1-toke@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The stackmap code relies on roundup_pow_of_two() to compute the number
of hash buckets, and contains an overflow check by checking if the
resulting value is 0. However, on 32-bit arches, the roundup code itself
can overflow by doing a 32-bit left-shift of an unsigned long value,
which is undefined behaviour, so it is not guaranteed to truncate
neatly. This was triggered by syzbot on the DEVMAP_HASH type, which
contains the same check, copied from the hashtab code.
The commit in the fixes tag actually attempted to fix this, but the fix
did not account for the UB, so the fix only works on CPUs where an
overflow does result in a neat truncation to zero, which is not
guaranteed. Checking the value before rounding does not have this
problem.
Fixes: 6183f4d3a0 ("bpf: Check for integer overflow when using roundup_pow_of_two()")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Reviewed-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-ID: <20240307120340.99577-4-toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The hashtab code relies on roundup_pow_of_two() to compute the number of
hash buckets, and contains an overflow check by checking if the
resulting value is 0. However, on 32-bit arches, the roundup code itself
can overflow by doing a 32-bit left-shift of an unsigned long value,
which is undefined behaviour, so it is not guaranteed to truncate
neatly. This was triggered by syzbot on the DEVMAP_HASH type, which
contains the same check, copied from the hashtab code. So apply the same
fix to hashtab, by moving the overflow check to before the roundup.
Fixes: daaf427c6a ("bpf: fix arraymap NULL deref and missing overflow and zero size checks")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Message-ID: <20240307120340.99577-3-toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The devmap code allocates a number hash buckets equal to the next power
of two of the max_entries value provided when creating the map. When
rounding up to the next power of two, the 32-bit variable storing the
number of buckets can overflow, and the code checks for overflow by
checking if the truncated 32-bit value is equal to 0. However, on 32-bit
arches the rounding up itself can overflow mid-way through, because it
ends up doing a left-shift of 32 bits on an unsigned long value. If the
size of an unsigned long is four bytes, this is undefined behaviour, so
there is no guarantee that we'll end up with a nice and tidy 0-value at
the end.
Syzbot managed to turn this into a crash on arm32 by creating a
DEVMAP_HASH with max_entries > 0x80000000 and then trying to update it.
Fix this by moving the overflow check to before the rounding up
operation.
Fixes: 6f9d451ab1 ("xdp: Add devmap_hash map type for looking up devices by hashed index")
Link: https://lore.kernel.org/r/000000000000ed666a0611af6818@google.com
Reported-and-tested-by: syzbot+8cd36f6b65f3cafd400a@syzkaller.appspotmail.com
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Message-ID: <20240307120340.99577-2-toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
panel, a deadlock fix for nouveau, A controversial format fix for udl
that got reverted to allow further discussion, and a build fix for the
drm/buddy kunit tests.
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Merge tag 'drm-misc-fixes-2024-03-07' of https://anongit.freedesktop.org/git/drm/drm-misc into drm-fixes
A connector status polling fix, a timings fix for the Himax83102-j02
panel, a deadlock fix for nouveau, A controversial format fix for udl
that got reverted to allow further discussion, and a build fix for the
drm/buddy kunit tests.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240307-quizzical-auburn-starling-0ade8f@houat
- enhancements for NPU and MRT support
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Merge tag 'drm-etnaviv-next-2024-03-07' of https://git.pengutronix.de/git/lst/linux into drm-next
- various code cleanups
- enhancements for NPU and MRT support
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/72a783cd98d60f6ebb43b90a6b453eea87224409.camel@pengutronix.de
- Fix kunit link failure with built-in xe
- Fix one more 32-bit build failure with ARM compiler
- Fix initialization order of topology struct
- Cleanup unused fields in struct xe_vm
- Fix xe_vm leak when handling page fault on a VM not in fault mode
- Drop use of "grouped target" feature in Makefile since that's
only available in make >= 4.3
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Merge tag 'drm-xe-next-fixes-2024-03-04' of ssh://gitlab.freedesktop.org/drm/xe/kernel into drm-next
Driver Changes:
- Fix kunit link failure with built-in xe
- Fix one more 32-bit build failure with ARM compiler
- Fix initialization order of topology struct
- Cleanup unused fields in struct xe_vm
- Fix xe_vm leak when handling page fault on a VM not in fault mode
- Drop use of "grouped target" feature in Makefile since that's
only available in make >= 4.3
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/kaypobelrl7u7rtnu6hg5czs3vptbhs4rp24vnwuo2ajoxysto@l5u7377hz4es
issues or aren't considered to be needed in earlier kernel versions.
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Merge tag 'mm-hotfixes-stable-2024-03-07-16-17' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"6 hotfixes. 4 are cc:stable and the remainder pertain to post-6.7
issues or aren't considered to be needed in earlier kernel versions"
* tag 'mm-hotfixes-stable-2024-03-07-16-17' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
scripts/gdb/symbols: fix invalid escape sequence warning
mailmap: fix Kishon's email
init/Kconfig: lower GCC version check for -Warray-bounds
mm, mmap: fix vma_merge() case 7 with vma_ops->close
mm: userfaultfd: fix unexpected change to src_folio when UFFDIO_MOVE fails
mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations
If we loop for multishot receive on the initial attempt, and then abort
later on to wait for more, we miss a case where we should be copying the
io_async_msghdr from the stack to stable storage. This leads to the next
retry potentially failing, if the application had the msghdr on the
stack.
Cc: stable@vger.kernel.org
Fixes: 9bb66906f2 ("io_uring: support multishot in recvmsg")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
PM runtime can be done simultaneously with AER error handling. Avoid that
by using pm_runtime_get_sync() before and pm_runtime_put() after reset in
pcie_do_recovery() for all recovering devices.
pm_runtime_get_sync() will increase dev->power.usage_count counter to
prevent any possible future request to runtime suspend a device. It will
also resume a device, if it was previously in D3hot state.
I tested with igc device by doing simultaneous aer_inject and rpm
suspend/resume via /sys/bus/pci/devices/PCI_ID/power/control and can
reproduce:
igc 0000:02:00.0: not ready 65535ms after bus reset; giving up
pcieport 0000:00:1c.2: AER: Root Port link has been reset (-25)
pcieport 0000:00:1c.2: AER: subordinate device reset failed
pcieport 0000:00:1c.2: AER: device recovery failed
igc 0000:02:00.0: Unable to change power state from D3hot to D0, device inaccessible
The problem disappears when this patch is applied.
Link: https://lore.kernel.org/r/20240212120135.146068-1-stanislaw.gruszka@linux.intel.com
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Cc: <stable@vger.kernel.org>
Calling irq_domain_remove() will lead to freeing the IRQ domain
prematurely. The domain is still referenced and will be attempted to get
used via rmi_free_function_list() -> rmi_unregister_function() ->
irq_dispose_mapping() -> irq_get_irq_data()'s ->domain pointer.
With PaX's MEMORY_SANITIZE this will lead to an access fault when
attempting to dereference embedded pointers, as in Torsten's report that
was faulting on the 'domain->ops->unmap' test.
Fix this by releasing the IRQ domain only after all related IRQs have
been deactivated.
Fixes: 24d28e4f12 ("Input: synaptics-rmi4 - convert irq distribution to irq_domain")
Reported-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
Signed-off-by: Mathias Krause <minipli@grsecurity.net>
Link: https://lore.kernel.org/r/20240222142654.856566-1-minipli@grsecurity.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Use the new w/a KLV support to enable a MTL w/a. Note, this w/a is a
super-set of Wa_16019325821, so requires turning that one as well as
setting the new flag for Wa_14019159160 itself.
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240223205632.1621019-4-John.C.Harrison@Intel.com
vmlinux BTF includes all kernel enums.
Add __PAGE_SIZE = PAGE_SIZE enum, so that bpf programs
that include vmlinux.h can easily access it.
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/r/20240307031228.42896-7-alexei.starovoitov@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
It's not restricted to working with "internal" maps, it cares about any
map that can be mmap'ed. Reflect that in more succinct and generic name.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/r/20240307031228.42896-6-alexei.starovoitov@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
__uint() macro that is used to specify map attributes like:
__uint(type, BPF_MAP_TYPE_ARRAY);
__uint(map_flags, BPF_F_MMAPABLE);
It is limited to 32-bit, since BTF_KIND_ARRAY has u32 "number of elements"
field in "struct btf_array".
Introduce __ulong() macro that allows specifying values bigger than 32-bit.
In map definition "map_extra" is the only u64 field, so far.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/r/20240307031228.42896-5-alexei.starovoitov@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Recognize 'void *p__map' kfunc argument as 'struct bpf_map *p__map'.
It allows kfunc to have 'void *' argument for maps, since bpf progs
will call them as:
struct {
__uint(type, BPF_MAP_TYPE_ARENA);
...
} arena SEC(".maps");
bpf_kfunc_with_map(... &arena ...);
Underneath libbpf will load CONST_PTR_TO_MAP into the register via ld_imm64
insn. If kfunc was defined with 'struct bpf_map *' it would pass the
verifier as well, but bpf prog would need to type cast the argument
(void *)&arena, which is not clean.
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/r/20240307031228.42896-3-alexei.starovoitov@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Variable page_addr is being assigned a value that is never read. The
variable is redundant and can be removed.
Cleans up clang scan build warning:
warning: Value stored to 'page_addr' is never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@intel.com>
Fixes: 162c797314 ("binder: avoid user addresses in debug logs")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312060851.cudv98wG-lkp@intel.com/
Acked-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20240307221505.101431-1-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Once the deferred probe timeout has elapsed it is very likely that the
devices that are still deferring probe won't ever be probed. Therefore
log the defer probe pending reason at the warning level instead to bring
attention to the issue.
Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240305-device-probe-error-v1-3-a06d8722bf19@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the dev_* instead of the pr_* functions to log the status of device
probe so that the log message gets the device metadata attached to it.
Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240305-device-probe-error-v1-2-a06d8722bf19@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers can return -ENODEV or -ENXIO from their probe to reject a device
match, and return -EPROBE_DEFER if probe should be retried. Any other
error code is not expected during normal behavior and indicates an
issue occurred, so it should be logged at the error level.
Also make use of the device variant, dev_err(), so that the device
metadata is attached to the log message.
Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240305-device-probe-error-v1-1-a06d8722bf19@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for this property so that dependency cycles can be broken and
fw_devlink can do better probe/suspend/resume ordering between devices in a
dependency cycle.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A fwnode link between specific supplier-consumer fwnodes can be added
multiple times for multiple reasons. If that dependency doesn't exist,
deleting the fwnode link once doesn't guarantee that it won't get created
again.
So, add FWLINK_FLAG_IGNORE flag to mark a fwnode link as one that needs to
be completely ignored. Since a fwnode link's flags is an OR of all the
flags passed to all the fwnode_link_add() calls to create that specific
fwnode link, the FWLINK_FLAG_IGNORE flag is preserved and can be used to
mark a fwnode link as on that need to be completely ignored until it is
deleted.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allow the callers to set fwnode link flags when adding fwnode links.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ben Greear further reports deadlocks during concurrent debugfs
remove while files are being accessed, even though the code in
question now uses debugfs cancellations. Turns out that despite
all the review on the locking, we missed completely that the
logic is wrong: if the refcount hits zero we can finish (and
need not wait for the completion), but if it doesn't we have
to trigger all the cancellations. As written, we can _never_
get into the loop triggering the cancellations. Fix this, and
explain it better while at it.
Cc: stable@vger.kernel.org
Fixes: 8c88a47435 ("debugfs: add API to allow debugfs operations cancellation")
Reported-by: Ben Greear <greearb@candelatech.com>
Closes: https://lore.kernel.org/r/1c9fa9e5-09f1-0522-fdbc-dbcef4d255ca@candelatech.com
Tested-by: Madhan Sai <madhan.singaraju@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20240229153635.6bfab7eb34d3.I6c7aeff8c9d6628a8bc1ddcf332205a49d801f17@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Update header inclusions to follow IWYU (Include What You Use)
principle.
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240301180138.271590-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The struct fwnode_operations defines one of the callback to return
enum dev_dma_attr. But this currently is defined in property.h.
Move it to the correct location.
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240301180138.271590-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A few APIs, i.e. fwnode_is_ancestor_of(), fwnode_get_next_parent_dev(),
and get_dev_from_fwnode(), that belong specifically to the fw_devlink APIs,
may be static, but they are not.
Resolve this mess by moving them to the driver/base/core where the all
users are being resided and make static.
No functional changes intended.
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240301180138.271590-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We do not use 'extern' keyword with functions. Remove the last one
mistakenly added to fwnode.h.
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240301180138.271590-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some of the warnings are still being printed even if FW_OPT_NO_WARN
is passed for some of the function e.g., firmware_request_nowarn().
Fix it by adding a check for FW_OPT_NO_WARN before printing the warning.
Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20240219163954.7719-1-quic_mojha@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These functions take a struct attribute_group as an input which has an
optional .name field. These functions rely on the .name field being
populated and do not check if its null. They pass this name into other
functions, eventually leading to a null pointer dereference.
This change simply updates the documentation of the function to make
this requirement clear.
Signed-off-by: Rohan Kollambalath <rkollamb@digi.com>
Link: https://lore.kernel.org/r/20240211223634.2103665-1-rohankollambalath@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().
Note that the upper limit of ida_simple_get() is exclusive, but the one of
ida_alloc_max() is inclusive. So a -1 has been added when needed.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/fd87836efa894aee0ae43e767369c85a2ee7e1ff.1705733916.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
