Merge drm/drm-fixes into drm-misc-fixes

Getting fixes and updates from v7.1-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge branch 'next' into for-linus

Prepare input updates for 7.1 merge window.

Merge tag 'v7.0-rc3' into next

Sync up with the mainline to brig up the latest changes, specifically
changes to ALPS driver.

Merge tag 'nfsd-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

- filehandle signing to defend against filehandle-guessing attacks
(Benjamin

Merge tag 'nfsd-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

- filehandle signing to defend against filehandle-guessing attacks
(Benjamin Coddington)

The server now appends a SipHash-2-4 MAC to each filehandle when
the new "sign_fh" export option is enabled. NFSD then verifies
filehandles received from clients against the expected MAC;
mismatches return NFS error STALE

- convert the entire NLMv4 server-side XDR layer from hand-written C to
xdrgen-generated code, spanning roughly thirty patches (Chuck Lever)

XDR functions are generally boilerplate code and are easy to get
wrong. The goals of this conversion are improved memory safety, lower
maintenance burden, and groundwork for eventual Rust code generation
for these functions.

- improve pNFS block/SCSI layout robustness with two related changes
(Dai Ngo)

SCSI persistent reservation fencing is now tracked per client and
per device via an xarray, to avoid both redundant preempt operations
on devices already fenced and a potential NFSD deadlock when all nfsd
threads are waiting for a layout return.

- scalability and infrastructure improvements

Sincere thanks to all contributors, reviewers, testers, and bug
reporters who participated in the v7.1 NFSD development cycle.

* tag 'nfsd-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (83 commits)
NFSD: Docs: clean up pnfs server timeout docs
nfsd: fix comment typo in nfsxdr
nfsd: fix comment typo in nfs3xdr
NFSD: convert callback RPC program to per-net namespace
NFSD: use per-operation statidx for callback procedures
svcrdma: Use contiguous pages for RDMA Read sink buffers
SUNRPC: Add svc_rqst_page_release() helper
SUNRPC: xdr.h: fix all kernel-doc warnings
svcrdma: Factor out WR chain linking into helper
svcrdma: Add Write chunk WRs to the RPC's Send WR chain
svcrdma: Clean up use of rdma->sc_pd->device
svcrdma: Clean up use of rdma->sc_pd->device in Receive paths
svcrdma: Add fair queuing for Send Queue access
SUNRPC: Optimize rq_respages allocation in svc_alloc_arg
SUNRPC: Track consumed rq_pages entries
svcrdma: preserve rq_next_page in svc_rdma_save_io_pages
SUNRPC: Handle NULL entries in svc_rqst_release_pages
SUNRPC: Allocate a separate Reply page array
SUNRPC: Tighten bounds checking in svc_rqst_replace_page
NFSD: Sign filehandles
...

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Merge branch 'for-7.1-printf-kunit-build' into for-linus

NFSD: Sign filehandles

NFS clients may bypass restrictive directory permissions by using
open_by_handle() (or other available OS system call) to guess the
filehandles for files below that directory.

NFSD: Sign filehandles

NFS clients may bypass restrictive directory permissions by using
open_by_handle() (or other available OS system call) to guess the
filehandles for files below that directory.

In order to harden knfsd servers against this attack, create a method to
sign and verify filehandles using SipHash-2-4 as a MAC (Message
Authentication Code). According to
https://cr.yp.to/siphash/siphash-20120918.pdf, SipHash can be used as a
MAC, and our use of SipHash-2-4 provides a low 1 in 2^64 chance of forgery.

Filehandles that have been signed cannot be tampered with, nor can
clients reasonably guess correct filehandles and hashes that may exist in
parts of the filesystem they cannot access due to directory permissions.

Append the 8 byte SipHash to encoded filehandles for exports that have set
the "sign_fh" export option. Filehandles received from clients are
verified by comparing the appended hash to the expected hash. If the MAC
does not match the server responds with NFS error _STALE. If unsigned
filehandles are received for an export with "sign_fh" they are rejected
with NFS error _STALE.

Signed-off-by: Benjamin Coddington <bcodding@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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nfsd: remove NFSD_V4_DELEG_TIMESTAMPS Kconfig option

Now that there is a runtime debugfs switch, eliminate the compile-time
switch and always build in support for delegated timestamps.

Administrato

nfsd: remove NFSD_V4_DELEG_TIMESTAMPS Kconfig option

Now that there is a runtime debugfs switch, eliminate the compile-time
switch and always build in support for delegated timestamps.

Administrators who previously disabled this feature at compile time can
disable it at runtime via:

echo 0 > /sys/kernel/debug/nfsd/delegated_timestamps

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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Merge drm/drm-next into drm-xe-next

Backmerging to bring in 7.00-rc3. Important ahead GPU SVM merging THP
support.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>

Merge drm/drm-next into drm-intel-next

Sync with v7.0-rc1 which contains a few treewide changes affecting i915.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-misc-next

Let's merge 7.0-rc1 to start the new drm-misc-next window

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge drm/drm-fixes into drm-misc-fixes

7.0-rc1 was just released, let's merge it to kick the new release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge tag 'nfsd-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
"Neil Brown and Jeff Layton contributed a dynamic thread pool sizing
mechanism

Merge tag 'nfsd-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
"Neil Brown and Jeff Layton contributed a dynamic thread pool sizing
mechanism for NFSD. The sunrpc layer now tracks minimum and maximum
thread counts per pool, and NFSD adjusts running thread counts based
on workload: idle threads exit after a timeout when the pool exceeds
its minimum, and new threads spawn automatically when all threads are
busy. Administrators control this behavior via the nfsdctl netlink
interface.

Rick Macklem, FreeBSD NFS maintainer, generously contributed server-
side support for the POSIX ACL extension to NFSv4, as specified in
draft-ietf-nfsv4-posix-acls. This extension allows NFSv4 clients to
get and set POSIX access and default ACLs using native NFSv4
operations, eliminating the need for sideband protocols. The feature
is gated by a Kconfig option since the IETF draft has not yet been
ratified.

Chuck Lever delivered numerous improvements to the xdrgen tool. Error
reporting now covers parsing, AST transformation, and invalid
declarations. Generated enum decoders validate incoming values against
valid enumerator lists. New features include pass-through line support
for embedding C directives in XDR specifications, 16-bit integer
types, and program number definitions. Several code generation issues
were also addressed.

When an administrator revokes NFSv4 state for a filesystem via the
unlock_fs interface, ongoing async COPY operations referencing that
filesystem are now cancelled, with CB_OFFLOAD callbacks notifying
affected clients.

The remaining patches in this pull request are clean-ups and minor
optimizations. Sincere thanks to all contributors, reviewers, testers,
and bug reporters who participated in the v7.0 NFSD development cycle"

* tag 'nfsd-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (45 commits)
NFSD: Add POSIX ACL file attributes to SUPPATTR bitmasks
NFSD: Add POSIX draft ACL support to the NFSv4 SETATTR operation
NFSD: Add support for POSIX draft ACLs for file creation
NFSD: Add support for XDR decoding POSIX draft ACLs
NFSD: Refactor nfsd_setattr()'s ACL error reporting
NFSD: Do not allow NFSv4 (N)VERIFY to check POSIX ACL attributes
NFSD: Add nfsd4_encode_fattr4_posix_access_acl
NFSD: Add nfsd4_encode_fattr4_posix_default_acl
NFSD: Add nfsd4_encode_fattr4_acl_trueform_scope
NFSD: Add nfsd4_encode_fattr4_acl_trueform
Add RPC language definition of NFSv4 POSIX ACL extension
NFSD: Add a Kconfig setting to enable support for NFSv4 POSIX ACLs
xdrgen: Implement pass-through lines in specifications
nfsd: cancel async COPY operations when admin revokes filesystem state
nfsd: add controls to set the minimum number of threads per pool
nfsd: adjust number of running nfsd threads based on activity
sunrpc: allow svc_recv() to return -ETIMEDOUT and -EBUSY
sunrpc: split new thread creation into a separate function
sunrpc: introduce the concept of a minimum number of threads per pool
sunrpc: track the max number of requested threads in a pool
...

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Merge branch 'for-6.20/sony' into for-linus

- Support for Rock band 4 PS4 and PS5 guitars (Rosalie Wanders)

NFSD: Add a Kconfig setting to enable support for NFSv4 POSIX ACLs

A new IETF draft extends NFSv4.2 with POSIX ACL attributes:

https://www.ietf.org/archive/id/draft-ietf-nfsv4-posix-acls-00.txt

NFSD: Add a Kconfig setting to enable support for NFSv4 POSIX ACLs

A new IETF draft extends NFSv4.2 with POSIX ACL attributes:

https://www.ietf.org/archive/id/draft-ietf-nfsv4-posix-acls-00.txt

This draft has not yet been ratified. A build-time configuration
option allows developers and distributors to decide whether to
expose this experimental protocol extension to NFSv4 clients. The
option is disabled by default to prevent unintended deployment of
potentially unstable protocol features in production environments.

This approach mirrors the existing NFSD_V4_DELEG_TIMESTAMPS option,
which gates another experimental NFSv4 extension based on an
unratified IETF draft.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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Merge tag 'v6.19-rc1' into msm-next

Merge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWC
config database defining UBWC_6).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.q

Merge tag 'v6.19-rc1' into msm-next

Merge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWC
config database defining UBWC_6).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

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Merge drm/drm-next into drm-xe-next

Backmerging to bring in 6.19-rc1. An important upstream bugfix and
to help unblock PTL CI.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1

Cross-merge BPF and other fixes after downstream PR.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

Merge drm/drm-next into drm-intel-next

Sync-up some display code needed for Async flips refactor.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-misc-next

Let's kickstart the v6.20 (7.0?) release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge tag 'v6.18' into next

Sync up with the mainline to bring in the latest APIs.

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.19

We've been quite busy with fixes since the merge window, though

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.19

We've been quite busy with fixes since the merge window, though not in
any particularly exciting ways - the standout thing is the fix for _SX
controls which were broken by a change to how we do clamping, otherwise
it's all fairly run of the mill fixes and quirks.

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Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Pull in rc1 to include all changes since the merge window closed,
and grab all fixes and changes from drm/drm-next.

Signed-off-by: M

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Pull in rc1 to include all changes since the merge window closed,
and grab all fixes and changes from drm/drm-next.

Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>

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Merge tag 'nfsd-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

- Mike Snitzer's mechanism for disabling I/O caching introduced in
v6.18 is

Merge tag 'nfsd-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

- Mike Snitzer's mechanism for disabling I/O caching introduced in
v6.18 is extended to include using direct I/O. The goal is to further
reduce the memory footprint consumed by NFS clients accessing large
data sets via NFSD.

- The NFSD community adopted a maintainer entry profile during this
cycle. See

Documentation/filesystems/nfs/nfsd-maintainer-entry-profile.rst

- Work continues on hardening NFSD's implementation of the pNFS block
layout type. This type enables pNFS clients to directly access the
underlying block devices that contain an exported file system,
reducing server overhead and increasing data throughput.

- The remaining patches are clean-ups and minor optimizations. Many
thanks to the contributors, reviewers, testers, and bug reporters who
participated during the v6.19 NFSD development cycle.

* tag 'nfsd-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (38 commits)
NFSD: nfsd-io-modes: Separate lists
NFSD: nfsd-io-modes: Wrap shell snippets in literal code blocks
NFSD: Add toctree entry for NFSD IO modes docs
NFSD: add Documentation/filesystems/nfs/nfsd-io-modes.rst
NFSD: Implement NFSD_IO_DIRECT for NFS WRITE
NFSD: Make FILE_SYNC WRITEs comply with spec
NFSD: Add trace point for SCSI fencing operation.
NFSD: use correct reservation type in nfsd4_scsi_fence_client
xdrgen: Don't generate unnecessary semicolon
xdrgen: Fix union declarations
NFSD: don't start nfsd if sv_permsocks is empty
xdrgen: handle _XdrString in union encoder/decoder
xdrgen: Fix the variable-length opaque field decoder template
xdrgen: Make the xdrgen script location-independent
xdrgen: Generalize/harden pathname construction
lockd: don't allow locking on reexported NFSv2/3
MAINTAINERS: add a nfsd blocklayout reviewer
nfsd: Use MD5 library instead of crypto_shash
nfsd: stop pretending that we cache the SEQUENCE reply.
NFS: nfsd-maintainer-entry-profile: Inline function name prefixes
...

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nfsd: Use MD5 library instead of crypto_shash

Update NFSD's support for "legacy client tracking" (which uses MD5) to
use the MD5 library instead of crypto_shash. This has several benefits:

- Simpl

nfsd: Use MD5 library instead of crypto_shash

Update NFSD's support for "legacy client tracking" (which uses MD5) to
use the MD5 library instead of crypto_shash. This has several benefits:

- Simpler code. Notably, much of the error-handling code is no longer
needed, since the library functions can't fail.

- Improved performance due to reduced overhead. A microbenchmark of
nfs4_make_rec_clidname() shows a speedup from 1455 cycles to 425.

- The MD5 code can now safely be built as a loadable module when nfsd is
built as a loadable module. (Previously, nfsd forced the MD5 code to
built-in, presumably to work around the unreliability of the
name-based loading.) Thus select MD5 from the tristate option NFSD if
NFSD_LEGACY_CLIENT_TRACKING, instead of from the bool option NFSD_V4.

- Fixes a bug where legacy client tracking was not supported on kernels
booted with "fips=1", due to crypto_shash not allowing MD5 to be used.
This particular use of MD5 is not for a cryptographic purpose, though,
so it is acceptable even when fips=1 (see
https://lore.kernel.org/r/dae495a93cbcc482f4ca23c3a0d9360a1fd8c3a8.camel@redhat.com/).

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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nfsd: switch the default for NFSD_LEGACY_CLIENT_TRACKING to "n"

We added this Kconfig option a little over a year ago. Switch the
default to "n" in preparation for its eventual removal.

Signed-off-

nfsd: switch the default for NFSD_LEGACY_CLIENT_TRACKING to "n"

We added this Kconfig option a little over a year ago. Switch the
default to "n" in preparation for its eventual removal.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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