I still see "RPC: Could not send backchannel reply error: -110"
quite often, along with slow-running tests. Debugging shows that the
backchannel is still stumbling when it has to queue a callback reply
on a busy transport.
Note that every one of these timeouts causes a connection loss by
virtue of the xprt_conditional_disconnect() call in that arm of
call_cb_transmit_status().
I found that setting to_maxval is necessary to get the RPC timeout
logic to behave whenever to_exponential is not set.
Fixes: 57331a59ac ("NFSv4.1: Use the nfs_client's rpc timeouts for backchannel")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
xe:
- Fix for invalid register access
i915:
- Fix conditions for joiner usage, it's not possible with eDP MSO
amdgpu:
- Fix display idle optimization race
- Fix GPUVM TLB flush locking scope
- IPS fix
- GFX 9.4.3 harvesting fix
- Runtime pm fix for shared buffers
- DCN 3.5.x fixes
- USB4 fix
- RISC-V clang fix
- Silence UBSAN warnings
- MES11 fix
- PSP 14.0.x fix
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Merge tag 'drm-fixes-2024-06-22' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Still pretty quiet, two weeks worth of amdgpu fixes, with one i915 and
one xe. I didn't get the drm-misc-fixes tree PR this week, but there
was only one fix queued and I think it can wait another week, so seems
pretty normal.
xe:
- Fix for invalid register access
i915:
- Fix conditions for joiner usage, it's not possible with eDP MSO
amdgpu:
- Fix display idle optimization race
- Fix GPUVM TLB flush locking scope
- IPS fix
- GFX 9.4.3 harvesting fix
- Runtime pm fix for shared buffers
- DCN 3.5.x fixes
- USB4 fix
- RISC-V clang fix
- Silence UBSAN warnings
- MES11 fix
- PSP 14.0.x fix"
* tag 'drm-fixes-2024-06-22' of https://gitlab.freedesktop.org/drm/kernel:
drm/xe/vf: Don't touch GuC irq registers if using memory irqs
drm/amdgpu: init TA fw for psp v14
drm/amdgpu: cleanup MES11 command submission
drm/amdgpu: fix UBSAN warning in kv_dpm.c
drm/radeon: fix UBSAN warning in kv_dpm.c
drm/amd/display: Disable CONFIG_DRM_AMD_DC_FP for RISC-V with clang
drm/amd/display: Attempt to avoid empty TUs when endpoint is DPIA
drm/amd/display: change dram_clock_latency to 34us for dcn35
drm/amd/display: Change dram_clock_latency to 34us for dcn351
drm/amdgpu: revert "take runtime pm reference when we attach a buffer" v2
drm/amdgpu: Indicate CU havest info to CP
drm/amd/display: prevent register access while in IPS
drm/amdgpu: fix locking scope when flushing tlb
drm/amd/display: Remove redundant idle optimization check
drm/i915/mso: using joiner is not possible with eDP MSO
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Merge tag 'ovl-fixes-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs
Pull overlayfs fixes from Miklos Szeredi:
"Fix two bugs, one originating in this cycle and one from 6.6"
* tag 'ovl-fixes-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs:
ovl: fix encoding fid for lower only root
ovl: fix copy-up in tmpfile
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Merge tag 'io_uring-6.10-20240621' of git://git.kernel.dk/linux
Pull io_uring fix from Jens Axboe:
"Just a single cleanup for the fixed buffer iov_iter import.
More cosmetic than anything else, but let's get it cleaned up as it's
confusing"
* tag 'io_uring-6.10-20240621' of git://git.kernel.dk/linux:
io_uring/rsrc: fix incorrect assignment of iter->nr_segs in io_import_fixed
Small bug fixes:
- Prevent a crash in bnxt if the en and rdma drivers disagree on the MSI
vectors
- Have rxe memcpy inline data from the correct address
- Fix rxe's validation of UD packets
- Several mlx5 mr cache issues: bad lock balancing on error, missing
propagation of the ATS property to the HW, wrong bucketing of freed
mrs in some cases
- Incorrect goto error unwind in mlx5 driver probe
- Missed userspace input validation in mlx5 SRQ create
- Incorrect uABI in MANA rejecting valid optional MR creation flags
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Small bug fixes:
- Prevent a crash in bnxt if the en and rdma drivers disagree on the
MSI vectors
- Have rxe memcpy inline data from the correct address
- Fix rxe's validation of UD packets
- Several mlx5 mr cache issues: bad lock balancing on error, missing
propagation of the ATS property to the HW, wrong bucketing of freed
mrs in some cases
- Incorrect goto error unwind in mlx5 driver probe
- Missed userspace input validation in mlx5 SRQ create
- Incorrect uABI in MANA rejecting valid optional MR creation flags"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/mana_ib: Ignore optional access flags for MRs
RDMA/mlx5: Add check for srq max_sge attribute
RDMA/mlx5: Fix unwind flow as part of mlx5_ib_stage_init_init
RDMA/mlx5: Ensure created mkeys always have a populated rb_key
RDMA/mlx5: Follow rb_key.ats when creating new mkeys
RDMA/mlx5: Remove extra unlock on error path
RDMA/rxe: Fix responder length checking for UD request packets
RDMA/rxe: Fix data copy for IB_SEND_INLINE
RDMA/bnxt_re: Fix the max msix vectors macro
Cupertino Miranda says:
====================
Regular expression support for test output matching
Hi everyone,
This version removes regexp from inline assembly examples that did not
require the regular expressions to match.
Thanks,
Cupertino
====================
Link: https://lore.kernel.org/r/20240617141458.471620-1-cupertino.miranda@oracle.com
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
This patch changes a few tests to make use of regular expressions.
Fixed tests otherwise fail when compiled with GCC.
Signed-off-by: Cupertino Miranda <cupertino.miranda@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20240617141458.471620-3-cupertino.miranda@oracle.com
Add support for __regex and __regex_unpriv macros to check the test
execution output against a regular expression. This is similar to __msg
and __msg_unpriv, however those expect do substring matching.
Signed-off-by: Cupertino Miranda <cupertino.miranda@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20240617141458.471620-2-cupertino.miranda@oracle.com
This isn't known to fix anything yet, but it's a good idea to add it.
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/592043/
Signed-off-by: Rob Clark <robdclark@chromium.org>
Expose the value of the software fuse to userspace.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/592044/
Signed-off-by: Rob Clark <robdclark@chromium.org>
On all Qualcomm platforms with a7xx GPUs, qcom_scm provides a method to
initialize cx_mem. Copy this from downstream (minus BCL which we
currently don't support). On a750, this includes a new "fuse" register
which can be used by qcom_scm to fuse off certain features like
raytracing in software. The fuse is default off, and is initialized by
calling the method. Afterwards we have to read it to find out which
features were enabled.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/592042/
Signed-off-by: Rob Clark <robdclark@chromium.org>
This will used by drm/msm to initialize GPU registers that Qualcomm's
firmware doesn't make writeable to the kernel.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Bjorn Andersson <andersson@kernel.org>
Patchwork: https://patchwork.freedesktop.org/patch/592039/
Signed-off-by: Rob Clark <robdclark@chromium.org>
This should allow disabling the zap node via an overlay, for slbounce.
Suggested-by: Nikita Travkin <nikita@trvn.ru>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/594572/
When debugging faults, it is useful to know how the BO is mapped (cached
vs WC, gpu readonly, etc).
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/593854/
Perfetto can use these traces to track global and per-process GPU memory
usage.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/580854/
The BPF ring buffer internally is implemented as a power-of-2 sized circular
buffer, with two logical and ever-increasing counters: consumer_pos is the
consumer counter to show which logical position the consumer consumed the
data, and producer_pos which is the producer counter denoting the amount of
data reserved by all producers.
Each time a record is reserved, the producer that "owns" the record will
successfully advance producer counter. In user space each time a record is
read, the consumer of the data advanced the consumer counter once it finished
processing. Both counters are stored in separate pages so that from user
space, the producer counter is read-only and the consumer counter is read-write.
One aspect that simplifies and thus speeds up the implementation of both
producers and consumers is how the data area is mapped twice contiguously
back-to-back in the virtual memory, allowing to not take any special measures
for samples that have to wrap around at the end of the circular buffer data
area, because the next page after the last data page would be first data page
again, and thus the sample will still appear completely contiguous in virtual
memory.
Each record has a struct bpf_ringbuf_hdr { u32 len; u32 pg_off; } header for
book-keeping the length and offset, and is inaccessible to the BPF program.
Helpers like bpf_ringbuf_reserve() return `(void *)hdr + BPF_RINGBUF_HDR_SZ`
for the BPF program to use. Bing-Jhong and Muhammad reported that it is however
possible to make a second allocated memory chunk overlapping with the first
chunk and as a result, the BPF program is now able to edit first chunk's
header.
For example, consider the creation of a BPF_MAP_TYPE_RINGBUF map with size
of 0x4000. Next, the consumer_pos is modified to 0x3000 /before/ a call to
bpf_ringbuf_reserve() is made. This will allocate a chunk A, which is in
[0x0,0x3008], and the BPF program is able to edit [0x8,0x3008]. Now, lets
allocate a chunk B with size 0x3000. This will succeed because consumer_pos
was edited ahead of time to pass the `new_prod_pos - cons_pos > rb->mask`
check. Chunk B will be in range [0x3008,0x6010], and the BPF program is able
to edit [0x3010,0x6010]. Due to the ring buffer memory layout mentioned
earlier, the ranges [0x0,0x4000] and [0x4000,0x8000] point to the same data
pages. This means that chunk B at [0x4000,0x4008] is chunk A's header.
bpf_ringbuf_submit() / bpf_ringbuf_discard() use the header's pg_off to then
locate the bpf_ringbuf itself via bpf_ringbuf_restore_from_rec(). Once chunk
B modified chunk A's header, then bpf_ringbuf_commit() refers to the wrong
page and could cause a crash.
Fix it by calculating the oldest pending_pos and check whether the range
from the oldest outstanding record to the newest would span beyond the ring
buffer size. If that is the case, then reject the request. We've tested with
the ring buffer benchmark in BPF selftests (./benchs/run_bench_ringbufs.sh)
before/after the fix and while it seems a bit slower on some benchmarks, it
is still not significantly enough to matter.
Fixes: 457f44363a ("bpf: Implement BPF ring buffer and verifier support for it")
Reported-by: Bing-Jhong Billy Jheng <billy@starlabs.sg>
Reported-by: Muhammad Ramdhan <ramdhan@starlabs.sg>
Co-developed-by: Bing-Jhong Billy Jheng <billy@starlabs.sg>
Co-developed-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Bing-Jhong Billy Jheng <billy@starlabs.sg>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240621140828.18238-1-daniel@iogearbox.net
ELF loader uses "randomize_va_space" twice. It is sysctl and can change
at any moment, so 2 loads could see 2 different values in theory with
unpredictable consequences.
Issue exactly one load for consistent value across one exec.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Link: https://lore.kernel.org/r/3329905c-7eb8-400a-8f0a-d87cff979b5b@p183
Signed-off-by: Kees Cook <kees@kernel.org>
The descriptions of the combined interrupt signals (level1) mention
all the lower interrupt signals (level2) for each combined interrupt,
regardless if the lower (level2) signal is RC or EP specific.
E.g. the description of "Combined system interrupt" includes rbar_update,
which is EP specific, and the description of "Combined message interrupt"
includes obff_idle, obff_obff, obff_cpu_active, which are all EP specific.
The only exception is the "Combined legacy interrupt", which for some
reason does not provide an exhaustive list of the lower (level2) signals.
Add the missing lower interrupt signals: tx_inta, tx_intb, tx_intc, and
tx_intd for the "Combined legacy interrupt", as per the rk3568 and rk3588
Technical Reference Manuals, such that the descriptions of the combined
interrupt signals are consistent.
Link: https://lore.kernel.org/linux-pci/20240607-rockchip-pcie-ep-v1-v5-5-0a042d6b0049@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Refactor the rockchip-dw-pcie binding to move generic properties to a new
rockchip-dw-pcie-common binding that can be shared by both RC and EP mode.
No functional change intended.
Link: https://lore.kernel.org/linux-pci/20240607-rockchip-pcie-ep-v1-v5-4-0a042d6b0049@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
The DWC core has four interrupt signals: tx_inta, tx_intb, tx_intc, tx_intd
that are triggered when the PCIe controller (when running in Endpoint mode)
has sent an Assert_INTA Message to the upstream device.
Some DWC controllers have these interrupt in a combined interrupt signal.
Add the description of these interrupts to the device tree binding.
Link: https://lore.kernel.org/linux-pci/20240607-rockchip-pcie-ep-v1-v5-3-0a042d6b0049@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Considering that some drivers (e.g. pcie-dw-rockchip.c) already use the
interrupt-names "sys", "pmc", "msg", "err" for the device tree binding in
Root Complex mode (snps,dw-pcie.yaml), it doesn't make sense that those
drivers should use different interrupt-names when running in Endpoint mode
(snps,dw-pcie-ep.yaml).
Therefore, since "sys", "pmc", "msg", "err" are already defined in
snps,dw-pcie.yaml, add them also for snps,dw-pcie-ep.yaml.
Link: https://lore.kernel.org/linux-pci/20240607-rockchip-pcie-ep-v1-v5-2-0a042d6b0049@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Considering that some drivers (e.g. pcie-dw-rockchip.c) already use the
reg-name "apb" for the device tree binding in Root Complex mode
(snps,dw-pcie.yaml), it doesn't make sense that those drivers should use a
different reg-name when running in Endpoint mode (snps,dw-pcie-ep.yaml).
Therefore, since "apb" is already defined in snps,dw-pcie.yaml, add it
also for snps,dw-pcie-ep.yaml.
Link: https://lore.kernel.org/linux-pci/20240607-rockchip-pcie-ep-v1-v5-1-0a042d6b0049@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Many PCI adapters can benefit or even require full 64bit read
and write access to their registers. In order to enable work on
user-space drivers for these devices add two new variations
vfio_pci_core_io{read|write}64 of the existing access methods
when the architecture supports 64-bit ioreads and iowrites.
Signed-off-by: Ben Segal <bpsegal@us.ibm.com>
Co-developed-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
Link: https://lore.kernel.org/r/20240619115847.1344875-3-gbayer@linux.ibm.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
vfio_pci_core_do_io_rw() repeats the same code for multiple access
widths. Factor this out into a macro
Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
Link: https://lore.kernel.org/r/20240619115847.1344875-2-gbayer@linux.ibm.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
The two functions riscv_intc_aia_irq() and riscv_intc_irq()
are only called by C functions.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20240614151955.1949-1-jszhang@kernel.org
For arm32, we get the following build warning:
In file included from /tmp/next/build/include/linux/printk.h:10,
from /tmp/next/build/include/linux/kernel.h:31,
from /tmp/next/build/block/blk-settings.c:5:
/tmp/next/build/block/blk-settings.c: In function 'blk_validate_atomic_write_limits':
/tmp/next/build/include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
The divident for do_div() should be 64b, which it is not. Since we want to
check 2x unsigned ints, just use % operator. This allows us to drop the
chunk_sectors variable.
Fixes: 9da3d1e912 ("block: Add core atomic write support")
Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/linux-next/b765d200-4e0f-48b1-a962-7dfa1c4aef9c@kernel.dk/T/#mbf067b1edd89c7f9d7dac6e258c516199953a108
Signed-off-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240621183016.3092518-1-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
A follow-up fix of the previous PR for a random build issue,
as well as another trivial HD-audio quirk.
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Merge tag 'sound-6.10-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull more sound fixes from Takashi Iwai:
"A follow-up fix for a random build issue, as well as another trivial
HD-audio quirk"
* tag 'sound-6.10-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda: Use imply for suggesting CONFIG_SERIAL_MULTI_INSTANTIATE
ALSA: hda/realtek: Add quirk for Lenovo Yoga Pro 7 14AHP9
- Undo an ACPICA code change that attempted to keep operation regions
within a page boundary, but allowed accesses to unmapped memory to
occur (Raju Rangoju).
- Ignore MIPI camera graph port nodes created with the help of the
information from the ACPI tables on all Dell Tiger, Alder and Raptor
Lake models as that information is reported to be invalid on the
platforms in question (Hans de Goede).
- Use new Intel CPU model matching macros in the MIPI DisCo for Imaging
part of ACPI device enumeration (Hans de Goede).
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Merge tag 'acpi-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These address a possible NULL pointer dereference in the ACPICA code
and quirk camera enumeration on multiple platforms where incorrect
data are present in the platform firmware.
Specifics:
- Undo an ACPICA code change that attempted to keep operation regions
within a page boundary, but allowed accesses to unmapped memory to
occur (Raju Rangoju)
- Ignore MIPI camera graph port nodes created with the help of the
information from the ACPI tables on all Dell Tiger, Alder and
Raptor Lake models as that information is reported to be invalid on
the platforms in question (Hans de Goede)
- Use new Intel CPU model matching macros in the MIPI DisCo for
Imaging part of ACPI device enumeration (Hans de Goede)"
* tag 'acpi-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: mipi-disco-img: Switch to new Intel CPU model defines
ACPI: scan: Ignore camera graph port nodes on all Dell Tiger, Alder and Raptor Lake models
ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine."
When the following program is processed by the verifier:
L1: may_goto L2
goto L1
L2: w0 = 0
exit
the may_goto insn is first converted to:
L1: r11 = *(u64 *)(r10 -8)
if r11 == 0x0 goto L2
r11 -= 1
*(u64 *)(r10 -8) = r11
goto L1
L2: w0 = 0
exit
then later as the last step the verifier inserts:
*(u64 *)(r10 -8) = BPF_MAX_LOOPS
as the first insn of the program to initialize loop count.
When the first insn happens to be a branch target of some jmp the
bpf_patch_insn_data() logic will produce:
L1: *(u64 *)(r10 -8) = BPF_MAX_LOOPS
r11 = *(u64 *)(r10 -8)
if r11 == 0x0 goto L2
r11 -= 1
*(u64 *)(r10 -8) = r11
goto L1
L2: w0 = 0
exit
because instruction patching adjusts all jmps and calls, but for this
particular corner case it's incorrect and the L1 label should be one
instruction down, like:
*(u64 *)(r10 -8) = BPF_MAX_LOOPS
L1: r11 = *(u64 *)(r10 -8)
if r11 == 0x0 goto L2
r11 -= 1
*(u64 *)(r10 -8) = r11
goto L1
L2: w0 = 0
exit
and that's what this patch is fixing.
After bpf_patch_insn_data() call adjust_jmp_off() to adjust all jmps
that point to newly insert BPF_ST insn to point to insn after.
Note that bpf_patch_insn_data() cannot easily be changed to accommodate
this logic, since jumps that point before or after a sequence of patched
instructions have to be adjusted with the full length of the patch.
Conceptually it's somewhat similar to "insert" of instructions between other
instructions with weird semantics. Like "insert" before 1st insn would require
adjustment of CALL insns to point to newly inserted 1st insn, but not an
adjustment JMP insns that point to 1st, yet still adjusting JMP insns that
cross over 1st insn (point to insn before or insn after), hence use simple
adjust_jmp_off() logic to fix this corner case. Ideally bpf_patch_insn_data()
would have an auxiliary info to say where 'the start of newly inserted patch
is', but it would be too complex for backport.
Fixes: 011832b97b ("bpf: Introduce may_goto instruction")
Reported-by: Zac Ecob <zacecob@protonmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Closes: https://lore.kernel.org/bpf/CAADnVQJ_WWx8w4b=6Gc2EpzAjgv+6A0ridnMz2TvS2egj4r3Gw@mail.gmail.com/
Link: https://lore.kernel.org/bpf/20240619011859.79334-1-alexei.starovoitov@gmail.com
- Remove the filtered mode for mt8188 from lvts_thermal as it is not
supported on this platform and fail the lvts_thermal initialization
when the golden temperature is zero as that means the efuse data is
not correctly set (Julien Panis).
- Update the processor_thermal part of the Intel int340x driver to
support shared interrupts as the processor thermal device interrupt
may in fact be shared with PCI devices (Srinivas Pandruvada).
- Synchronize the suspend-prepare and post-suspend actions of the
thermal PM notifier to avoid a destructive race condition and
change the priority of that notifier to the minimum to avoid
interference between the work items spawned by it and the other
PM notifiers during system resume (Rafael Wysocki).
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Merge tag 'thermal-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These fix the Mediatek lvts_thermal driver, the Intel int340x driver,
and the thermal core (two issues related to system suspend).
Specifics:
- Remove the filtered mode for mt8188 from lvts_thermal as it is not
supported on this platform and fail the lvts_thermal initialization
when the golden temperature is zero as that means the efuse data is
not correctly set (Julien Panis)
- Update the processor_thermal part of the Intel int340x driver to
support shared interrupts as the processor thermal device interrupt
may in fact be shared with PCI devices (Srinivas Pandruvada)
- Synchronize the suspend-prepare and post-suspend actions of the
thermal PM notifier to avoid a destructive race condition and
change the priority of that notifier to the minimum to avoid
interference between the work items spawned by it and the other
PM notifiers during system resume (Rafael Wysocki)"
* tag 'thermal-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: int340x: processor_thermal: Support shared interrupts
thermal: core: Change PM notifier priority to the minimum
thermal: core: Synchronize suspend-prepare and post-suspend actions
thermal/drivers/mediatek/lvts_thermal: Return error in case of invalid efuse data
thermal/drivers/mediatek/lvts_thermal: Remove filtered mode for mt8188
I encountered an issue when building the test_progs from the repository [1]:
$ pwd
/work/Qemu/x86_64/linux-6.10-rc2/tools/testing/selftests/bpf/
$ make test_progs V=1
[...]
./tools/sbin/bpftool gen object ./ip_check_defrag.bpf.linked2.o ./ip_check_defrag.bpf.linked1.o
libbpf: failed to find symbol for variable 'bpf_dynptr_slice' in section '.ksyms'
Error: failed to link './ip_check_defrag.bpf.linked1.o': No such file or directory (2)
[...]
Upon investigation, I discovered that the btf_types referenced in the '.ksyms'
section had a kind of BTF_KIND_FUNC instead of BTF_KIND_VAR:
$ bpftool btf dump file ./ip_check_defrag.bpf.linked1.o
[...]
[2] DATASEC '.ksyms' size=0 vlen=2
type_id=16 offset=0 size=0 (FUNC 'bpf_dynptr_from_skb')
type_id=17 offset=0 size=0 (FUNC 'bpf_dynptr_slice')
[...]
[16] FUNC 'bpf_dynptr_from_skb' type_id=82 linkage=extern
[17] FUNC 'bpf_dynptr_slice' type_id=85 linkage=extern
[...]
For a detailed analysis, please refer to [2]. We can add a kind checking to
fix the issue.
[1] https://github.com/eddyz87/bpf/tree/binsort-btf-dedup
[2] https://lore.kernel.org/all/0c0ef20c-c05e-4db9-bad7-2cbc0d6dfae7@oracle.com/
Fixes: 8fd27bf69b ("libbpf: Add BPF static linker BTF and BTF.ext support")
Signed-off-by: Donglin Peng <dolinux.peng@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20240619122355.426405-1-dolinux.peng@gmail.com
- Single fix for calling fwnode_handle_put() on the
returned fwnode pointer
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Merge tag 'soundwire-6.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire fix from Vinod Koul:
- Single fix for calling fwnode_handle_put() on the
returned fwnode pointer
* tag 'soundwire-6.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: fix usages of device_get_named_child_node()
The new generic LSM hook security_file_post_open() was recently added
to the LSM framework in commit 8f46ff5767 ("security: Introduce
file_post_open hook"). Let's proactively add this generic LSM hook to
the sleepable_lsm_hooks BTF ID set, because I can't see there being
any strong reasons not to, and it's only a matter of time before
someone else comes around and asks for it to be there.
security_file_post_open() is inherently sleepable as it's purposely
situated in the kernel that allows LSMs to directly read out the
contents of the backing file if need be. Additionally, it's called
directly after security_file_open(), and that LSM hook in itself
already exists in the sleepable_lsm_hooks BTF ID set.
Signed-off-by: Matt Bobrowski <mattbobrowski@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240618192923.379852-1-mattbobrowski@google.com
New versions of bpftool now emit additional link placeholders for BPF
maps (struct_ops maps are the only maps right now that support
attachment), and set up BPF skeleton in such a way that libbpf will
auto-attach BPF maps automatically, assumming libbpf is recent enough
(v1.5+). Old libbpf will do nothing with those links and won't attempt
to auto-attach maps. This allows user code to handle both pre-v1.5 and
v1.5+ versions of libbpf at runtime, if necessary.
But if users don't have (or don't want to) control bpftool version that
generates skeleton, then they can't just assume that skeleton will have
link placeholders. To make this detection possible and easy, let's add
the following to generated skeleton header file:
#define BPF_SKEL_SUPPORTS_MAP_AUTO_ATTACH 1
This can be used during compilation time to guard code that accesses
skel->links.<map> slots.
Note, if auto-attachment is undesirable, libbpf allows to disable this
through bpf_map__set_autoattach(map, false). This is necessary only on
libbpf v1.5+, older libbpf doesn't support map auto-attach anyways.
Libbpf version can be detected at compilation time using
LIBBPF_MAJOR_VERSION and LIBBPF_MINOR_VERSION macros, or at runtime with
libbpf_major_version() and libbpf_minor_version() APIs.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Quentin Monnet <qmo@kernel.org>
Link: https://lore.kernel.org/bpf/20240618183832.2535876-1-andrii@kernel.org
This reverts [1] and changes return value for bpf_session_cookie
in bpf selftests. Having long * might lead to problems on 32-bit
architectures.
Fixes: 2b8dd87332 ("bpf: Make bpf_session_cookie() kfunc return long *")
Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240619081624.1620152-1-jolsa@kernel.org
There is no need to allocate axes information separately from the main
joystick structure so let's fold the allocation and also drop members
(such as range, flat and fuzz) that are only used during initialization
of the device.
Acked-by: Artur Rojek <contact@artur-rojek.eu>
Link: https://lore.kernel.org/r/ZmkrgTlxNwm_oHxv@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The hard-coded metrics is wrongly calculated on the hybrid machine.
$ perf stat -e cycles,instructions -a sleep 1
Performance counter stats for 'system wide':
18,205,487 cpu_atom/cycles/
9,733,603 cpu_core/cycles/
9,423,111 cpu_atom/instructions/ # 0.52 insn per cycle
4,268,965 cpu_core/instructions/ # 0.23 insn per cycle
The insn per cycle for cpu_core should be 4,268,965 / 9,733,603 = 0.44.
When finding the metric events, the find_stat() doesn't take the PMU
type into account. The cpu_atom/cycles/ is wrongly used to calculate
the IPC of the cpu_core.
In the hard-coded metrics, the events from a different PMU are only
SW_CPU_CLOCK and SW_TASK_CLOCK. They both have the stat type,
STAT_NSECS. Except the SW CLOCK events, check the PMU type as well.
Fixes: 0a57b91080 ("perf stat: Use counts rather than saved_value")
Reported-by: Khalil, Amiri <amiri.khalil@intel.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240606180316.4122904-1-kan.liang@linux.intel.com
The function returns the idle calls counter for the current cpu and
therefore usually isn't what the caller wants. It is unnused since
commit 466a2b42d6 ("cpufreq: schedutil: Use idle_calls counter of the
remote CPU")
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240617161615.49309-1-christian.loehle@arm.com
In case of reset of VF VSI can be reallocated. To handle this case it
should be properly updated.
Reload representor as vsi->vsi_num can be different than the one stored
when representor was created.
Instead of only changing antispoof do whole VSI configuration for
eswitch.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
It is needed because subfunction port representor shouldn't configure
the source VSI during representor creation.
Move the code to separate function and call it only in case the VF port
representor is being created.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Commit 83e824a4a5 ("mtd: spi-nor: Correct flags for Winbond w25q128")
removed the flags for non-SFDP devices. It was assumed that it wasn't in
use anymore. This wasn't true. Add the no_sfdp_flags as well as the size
again.
We add the additional flags for dual and quad read because they have
been reported to work properly by Hartmut using both older and newer
versions of this flash, the similar flashes with 64Mbit and 256Mbit
already have these flags and because it will (luckily) trigger our
legacy SFDP parsing, so newer versions with SFDP support will still get
the parameters from the SFDP tables.
Reported-by: Hartmut Birr <e9hack@gmail.com>
Closes: https://lore.kernel.org/r/CALxbwRo_-9CaJmt7r7ELgu+vOcgk=xZcGHobnKf=oT2=u4d4aA@mail.gmail.com/
Fixes: 83e824a4a5 ("mtd: spi-nor: Correct flags for Winbond w25q128")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Michael Walle <mwalle@kernel.org>
Acked-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Esben Haabendal <esben@geanix.com>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
Link: https://lore.kernel.org/r/20240621120929.2670185-1-mwalle@kernel.org
The RDMA transport defines values for TSAS, but it cannot be changed as
we only support the 'connected' mode.
So to avoid errors during reconfiguration we should allow to write the
current value.
Fixes: 3f123494db ("nvmet: make TCP sectype settable via configfs")
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
PRTYPE is the provider type, not the QP service type.
Fixes: eb793e2c92 ("nvme.h: add NVMe over Fabrics definitions")
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Comment about BUILTIN_RETURN_ADDRESS_STRIPS_PAC spells
__builtin_return_adddress with a triple 'd', fix it.
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Link: https://lore.kernel.org/r/20240620174038.3721466-1-rppt@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
