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Pull ceph updates from Ilya Dryomov:
"One notable change here is that async creates and unlinks introduced
in 5.7 are now enabled by default. This should greatly speed up things
like rm, tar and rsync. To opt out, wsync mount option can be used.
Other than that we have a pile of bug fixes all across the filesystem
from Jeff, Xiubo and Kotresh and a metrics infrastructure rework from
Luis"
* tag 'ceph-for-5.16-rc1' of git://github.com/ceph/ceph-client:
ceph: add a new metric to keep track of remote object copies
libceph, ceph: move ceph_osdc_copy_from() into cephfs code
ceph: clean-up metrics data structures to reduce code duplication
ceph: split 'metric' debugfs file into several files
ceph: return the real size read when it hits EOF
ceph: properly handle statfs on multifs setups
ceph: shut down mount on bad mdsmap or fsmap decode
ceph: fix mdsmap decode when there are MDS's beyond max_mds
ceph: ignore the truncate when size won't change with Fx caps issued
ceph: don't rely on error_string to validate blocklisted session.
ceph: just use ci->i_version for fscache aux info
ceph: shut down access to inode when async create fails
ceph: refactor remove_session_caps_cb
ceph: fix auth cap handling logic in remove_session_caps_cb
ceph: drop private list from remove_session_caps_cb
ceph: don't use -ESTALE as special return code in try_get_cap_refs
ceph: print inode numbers instead of pointer values
ceph: enable async dirops by default
libceph: drop ->monmap and err initialization
ceph: convert to noop_direct_IO
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This patch moves ceph_osdc_copy_from() function out of libceph code into
cephfs. There are no other users for this function, and there is the need
(in another patch) to access internal ceph_osd_request struct members.
Signed-off-by: Luís Henriques <lhenriques@suse.de>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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The "error_string" in the metadata of MClientSession is being
parsed by kclient to validate whether the session is blocklisted.
The "error_string" is for humans and shouldn't be relied on it.
Hence added the flag to MClientsession to indicate the session
is blocklisted.
[ jlayton: minor formatting cleanup ]
URL: https://tracker.ceph.com/issues/47450
Signed-off-by: Kotresh HR <khiremat@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this cycle, we've applied relatively small number of patches which
fix subtle corner cases mainly, while introducing a new mount option
to be able to fragment the disk intentionally for performance tests.
Enhancements:
- add a mount option to fragmente on-disk layout to understand the
performance
- support direct IO for multi-partitions
- add a fault injection of dquot_initialize
Bug fixes:
- address some lockdep complaints
- fix a deadlock issue with quota
- fix a memory tuning condition
- fix compression condition to improve the ratio
- fix disabling compression on the non-empty compressed file
- invalidate cached pages before IPU/DIO writes
And, we've added some minor clean-ups as usual"
* tag 'f2fs-for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
f2fs: fix UAF in f2fs_available_free_memory
f2fs: invalidate META_MAPPING before IPU/DIO write
f2fs: support fault injection for dquot_initialize()
f2fs: fix incorrect return value in f2fs_sanity_check_ckpt()
f2fs: compress: disallow disabling compress on non-empty compressed file
f2fs: compress: fix overwrite may reduce compress ratio unproperly
f2fs: multidevice: support direct IO
f2fs: introduce fragment allocation mode mount option
f2fs: replace snprintf in show functions with sysfs_emit
f2fs: include non-compressed blocks in compr_written_block
f2fs: fix wrong condition to trigger background checkpoint correctly
f2fs: fix to use WHINT_MODE
f2fs: fix up f2fs_lookup tracepoints
f2fs: set SBI_NEED_FSCK flag when inconsistent node block found
f2fs: introduce excess_dirty_threshold()
f2fs: avoid attaching SB_ACTIVE flag during mount
f2fs: quota: fix potential deadlock
f2fs: should use GFP_NOFS for directory inodes
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Commit 3c62be17d4f5 ("f2fs: support multiple devices") missed
to support direct IO for multiple device feature, this patch
adds to support the missing part of multidevice feature.
In addition, for multiple device image, we should be aware of
any issued direct write IO rather than just buffered write IO,
so that fsync and syncfs can issue a preflush command to the
device where direct write IO goes, to persist user data for
posix compliant.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Fix up a misuse that the filename pointer isn't always valid in
the ring buffer, and we should copy the content instead.
Fixes: 0c5e36db17f5 ("f2fs: trace f2fs_lookup")
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull netfs, 9p, afs and ceph (partial) foliation from David Howells:
"This converts netfslib, 9p and afs to use folios. It also partially
converts ceph so that it uses folios on the boundaries with netfslib.
To help with this, a couple of folio helper functions are added in the
first two patches.
These patches don't touch fscache and cachefiles as I intend to remove
all the code that deals with pages directly from there. Only nfs and
cifs are using the old fscache I/O API now. The new API uses iov_iter
instead.
Thanks to Jeff Layton, Dominique Martinet and AuriStor for testing and
retesting the patches"
* tag 'netfs-folio-20211111' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Use folios in directory handling
netfs, 9p, afs, ceph: Use folios
folio: Add a function to get the host inode for a folio
folio: Add a function to change the private data attached to a folio
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Convert the netfs helper library to use folios throughout, convert the 9p
and afs filesystems to use folios in their file I/O paths and convert the
ceph filesystem to use just enough folios to compile.
With these changes, afs passes -g quick xfstests.
Changes
=======
ver #5:
- Got rid of folio_end{io,_read,_write}() and inlined the stuff it does
instead (Willy decided he didn't want this after all).
ver #4:
- Fixed a bug in afs_redirty_page() whereby it didn't set the next page
index in the loop and returned too early.
- Simplified a check in v9fs_vfs_write_folio_locked()[1].
- Undid a change to afs_symlink_readpage()[1].
- Used offset_in_folio() in afs_write_end()[1].
- Changed from using page_endio() to folio_end{io,_read,_write}()[1].
ver #2:
- Add 9p foliation.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Dominique Martinet <asmadeus@codewreck.org>
Tested-by: kafs-testing@auristor.com
cc: Matthew Wilcox (Oracle) <willy@infradead.org>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Ilya Dryomov <idryomov@gmail.com>
cc: Dominique Martinet <asmadeus@codewreck.org>
cc: v9fs-developer@lists.sourceforge.net
cc: linux-afs@lists.infradead.org
cc: ceph-devel@vger.kernel.org
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/YYKa3bfQZxK5/wDN@casper.infradead.org/ [1]
Link: https://lore.kernel.org/r/2408234.1628687271@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/162877311459.3085614.10601478228012245108.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/162981153551.1901565.3124454657133703341.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/163005745264.2472992.9852048135392188995.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163584187452.4023316.500389675405550116.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/163649328026.309189.1124218109373941936.stgit@warthog.procyon.org.uk/ # v4
Link: https://lore.kernel.org/r/163657852454.834781.9265101983152100556.stgit@warthog.procyon.org.uk/ # v5
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Add a convenience function, folio_inode() that will get the host inode from
a folio's mapping.
Changes:
ver #3:
- Fix mistake in function description[2].
ver #2:
- Fix contradiction between doc and implementation by disallowing use
with swap caches[1].
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Dominique Martinet <asmadeus@codewreck.org>
Tested-by: kafs-testing@auristor.com
Link: https://lore.kernel.org/r/YST8OcVNy02Rivbm@casper.infradead.org/ [1]
Link: https://lore.kernel.org/r/YYKLkBwQdtn4ja+i@casper.infradead.org/ [2]
Link: https://lore.kernel.org/r/162880453171.3369675.3704943108660112470.stgit@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/162981151155.1901565.7010079316994382707.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/163005744370.2472992.18324470937328925723.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163584184628.4023316.9386282630968981869.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/163649325519.309189.15072332908703129455.stgit@warthog.procyon.org.uk/ # v4
Link: https://lore.kernel.org/r/163657850401.834781.1031963517399283294.stgit@warthog.procyon.org.uk/ # v5
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Add a function, folio_change_private(), that will change the private data
attached to a folio, without the need to twiddle the private bit or the
refcount. It assumes that folio_add_private() has already been called on
the page.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Dominique Martinet <asmadeus@codewreck.org>
Tested-by: kafs-testing@auristor.com
Link: https://lore.kernel.org/r/162981149911.1901565.17776700811659843340.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/163005743485.2472992.5100702469503007023.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163584180781.4023316.5037526301198034310.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/163649324326.309189.17817587229450840783.stgit@warthog.procyon.org.uk/ # v4
Link: https://lore.kernel.org/r/163657848531.834781.14269656212269187893.stgit@warthog.procyon.org.uk/ # v5
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fixes from Paul Moore:
"Unfortunately I need to request a revert for two LSM/SELinux patches
that came in via the network tree. The two patches in question add a
new SCTP/LSM hook as well as an SELinux implementation of that LSM
hook. The short version of "why?" is in the commit description of the
revert patch, but I'll copy-n-paste the important bits below to save
some time for the curious:
... Unfortunately these two patches were merged without proper
review (the Reviewed-by and Tested-by tags from Richard Haines
were for previous revisions of these patches that were
significantly different) and there are outstanding objections from
the SELinux maintainers regarding these patches.
Work is currently ongoing to correct the problems identified in
the reverted patches, as well as others that have come up during
review, but it is unclear at this point in time when that work
will be ready for inclusion in the mainline kernel. In the
interest of not keeping objectionable code in the kernel for
multiple weeks, and potentially a kernel release, we are reverting
the two problematic patches.
As usual with these things there is plenty of context to go with this
and I'll try to do my best to provide that now. This effort started
with a report of SCTP client side peel-offs not working correctly with
SELinux, Ondrej Mosnacek put forth a patch which he believed properly
addressed the problem but upon review by the netdev folks Xin Long
described some additional issues and submitted an improved patchset
for review. The SELinux folks reviewed Xin Long's initial patchset and
suggested some changes which resulted in a second patchset (v2) from
Xin Long; this is the patchset that is currently in your tree.
Unfortunately this v2 patchset from Xin Long was merged before it had
spent even just 24 hours on the mailing lists during the early days of
the merge window, a time when many of us were busy doing verification
of the newly released v5.15 kernel as well final review and testing of
our v5.16 pull requests. Making matters worse, upon reviewing the v2
patchset there were both changes which were found objectionable by
SELinux standards as well as additional outstanding SCTP/SELinux
interaction problems. At this point we did two things: resumed working
on a better fix for the SCTP/SELinux issue(s) - thank you Ondrej - and
we asked the networking folks to revert the v2 patchset.
The revert request was obviously rejected, but at the time I believed
it was just going to be an issue for linux-next; I wasn't expecting
something this significant that was merged into the networking tree
during the merge window to make it into your tree in the same window,
yet as of last night that is exactly what happened. While we continue
to try and resolve the SCTP/SELinux problem I am asking once again to
revert the v2 patches and not ship the current
security_sctp_assoc_established() hook in a v5.16-rcX kernel. If I was
confident that we could solve these issues in a week, maybe two, I
would refrain from asking for the revert but our current estimate is
for a minimum of two weeks for the next patch revision. With the
likelihood of additional delays due to normal patch review follow-up
and/or holidays it seems to me that the safest course of action is to
revert the patch both to try and keep some objectionable code out of a
release kernel and limit the chances of any new breakages from such a
change. While the SCTP/SELinux code in v5.15 and earlier has problems,
they are known problems, and I'd like to try and avoid creating new
and different problems while we work to fix things properly.
One final thing to mention: Xin Long's v2 patchset consisted of four
patches, yet this revert is for only the last two. We see the first
two patches as good, reasonable, and not likely to cause an issue. In
an attempt to create a cleaner revert patch we suggest leaving the
first two patches in the tree as they are currently"
* tag 'selinux-pr-20211112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
net,lsm,selinux: revert the security_sctp_assoc_established() hook
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This patch reverts two prior patches, e7310c94024c
("security: implement sctp_assoc_established hook in selinux") and
7c2ef0240e6a ("security: add sctp_assoc_established hook"), which
create the security_sctp_assoc_established() LSM hook and provide a
SELinux implementation. Unfortunately these two patches were merged
without proper review (the Reviewed-by and Tested-by tags from
Richard Haines were for previous revisions of these patches that
were significantly different) and there are outstanding objections
from the SELinux maintainers regarding these patches.
Work is currently ongoing to correct the problems identified in the
reverted patches, as well as others that have come up during review,
but it is unclear at this point in time when that work will be ready
for inclusion in the mainline kernel. In the interest of not keeping
objectionable code in the kernel for multiple weeks, and potentially
a kernel release, we are reverting the two problematic patches.
Signed-off-by: Paul Moore <paul@paul-moore.com>
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Pull more kvm updates from Paolo Bonzini:
"New x86 features:
- Guest API and guest kernel support for SEV live migration
- SEV and SEV-ES intra-host migration
Bugfixes and cleanups for x86:
- Fix misuse of gfn-to-pfn cache when recording guest steal time /
preempted status
- Fix selftests on APICv machines
- Fix sparse warnings
- Fix detection of KVM features in CPUID
- Cleanups for bogus writes to MSR_KVM_PV_EOI_EN
- Fixes and cleanups for MSR bitmap handling
- Cleanups for INVPCID
- Make x86 KVM_SOFT_MAX_VCPUS consistent with other architectures
Bugfixes for ARM:
- Fix finalization of host stage2 mappings
- Tighten the return value of kvm_vcpu_preferred_target()
- Make sure the extraction of ESR_ELx.EC is limited to architected
bits"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (34 commits)
KVM: SEV: unify cgroup cleanup code for svm_vm_migrate_from
KVM: x86: move guest_pv_has out of user_access section
KVM: x86: Drop arbitrary KVM_SOFT_MAX_VCPUS
KVM: Move INVPCID type check from vmx and svm to the common kvm_handle_invpcid()
KVM: VMX: Add a helper function to retrieve the GPR index for INVPCID, INVVPID, and INVEPT
KVM: nVMX: Clean up x2APIC MSR handling for L2
KVM: VMX: Macrofy the MSR bitmap getters and setters
KVM: nVMX: Handle dynamic MSR intercept toggling
KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use
KVM: x86: Don't update vcpu->arch.pv_eoi.msr_val when a bogus value was written to MSR_KVM_PV_EOI_EN
KVM: x86: Rename kvm_lapic_enable_pv_eoi()
KVM: x86: Make sure KVM_CPUID_FEATURES really are KVM_CPUID_FEATURES
KVM: x86: Add helper to consolidate core logic of SET_CPUID{2} flows
kvm: mmu: Use fast PF path for access tracking of huge pages when possible
KVM: x86/mmu: Properly dereference rcu-protected TDP MMU sptep iterator
KVM: x86: inhibit APICv when KVM_GUESTDBG_BLOCKIRQ active
kvm: x86: Convert return type of *is_valid_rdpmc_ecx() to bool
KVM: x86: Fix recording of guest steal time / preempted status
selftest: KVM: Add intra host migration tests
selftest: KVM: Add open sev dev helper
...
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Add support for AMD SEV and SEV-ES intra-host migration support. Intra
host migration provides a low-cost mechanism for userspace VMM upgrades.
In the common case for intra host migration, we can rely on the normal
ioctls for passing data from one VMM to the next. SEV, SEV-ES, and other
confidential compute environments make most of this information opaque, and
render KVM ioctls such as "KVM_GET_REGS" irrelevant. As a result, we need
the ability to pass this opaque metadata from one VMM to the next. The
easiest way to do this is to leave this data in the kernel, and transfer
ownership of the metadata from one KVM VM (or vCPU) to the next. In-kernel
hand off makes it possible to move any data that would be
unsafe/impossible for the kernel to hand directly to userspace, and
cannot be reproduced using data that can be handed to userspace.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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For SEV to work with intra host migration, contents of the SEV info struct
such as the ASID (used to index the encryption key in the AMD SP) and
the list of memory regions need to be transferred to the target VM.
This change adds a commands for a target VMM to get a source SEV VM's sev
info.
Signed-off-by: Peter Gonda <pgonda@google.com>
Suggested-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Cc: Marc Orr <marcorr@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Wanpeng Li <wanpengli@tencent.com>
Cc: Jim Mattson <jmattson@google.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Message-Id: <20211021174303.385706-3-pgonda@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Generalize KVM_REQ_VM_BUGGED so that it can be called even in cases
where it is by design that the VM cannot be operated upon. In this
case any KVM_BUG_ON should still warn, so introduce a new flag
kvm->vm_dead that is separate from kvm->vm_bugged.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Add guest api and guest kernel support for SEV live migration.
Introduces a new hypercall to notify the host of changes to the page
encryption status. If the page is encrypted then it must be migrated
through the SEV firmware or a helper VM sharing the key. If page is
not encrypted then it can be migrated normally by userspace. This new
hypercall is invoked using paravirt_ops.
Conflicts: sev_active() replaced by cc_platform_has(CC_ATTR_GUEST_MEM_ENCRYPT).
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Introduce a new AMD Memory Encryption GUID which is currently
used for defining a new UEFI environment variable which indicates
UEFI/OVMF support for the SEV live migration feature. This variable
is setup when UEFI/OVMF detects host/hypervisor support for SEV
live migration and later this variable is read by the kernel using
EFI runtime services to verify if OVMF supports the live migration
feature.
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Message-Id: <1cea22976d2208f34d47e0c1ce0ecac816c13111.1629726117.git.ashish.kalra@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik:
- Add PCI automatic error recovery.
- Fix tape driver timer initialization broken during timers api
cleanup.
- Fix bogus CPU measurement counters values on CPUs offlining.
- Check the validity of subchanel before reading other fields in the
schib in cio code.
* tag 's390-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/cio: check the subchannel validity for dev_busid
s390/cpumf: cpum_cf PMU displays invalid value after hotplug remove
s390/tape: fix timer initialization in tape_std_assign()
s390/pci: implement minimal PCI error recovery
PCI: Export pci_dev_lock()
s390/pci: implement reset_slot for hotplug slot
s390/pci: refresh function handle in iomap
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Commit e3a9b1212b9d ("PCI: Export pci_dev_trylock() and pci_dev_unlock()")
already exported pci_dev_trylock()/pci_dev_unlock() however in some
circumstances such as during error recovery it makes sense to block
waiting to get full access to the device so also export pci_dev_lock().
Link: https://lore.kernel.org/all/20210928181014.GA713179@bhelgaas/
Acked-by: Pierre Morel <pmorel@linux.ibm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Pull more SCSI updates from James Bottomley:
"This series is all the stragglers that didn't quite make the first
merge window pull. It's mostly minor updates and bug fixes of merge
window code but it also has two driver updates: ufs and qla2xxx"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (46 commits)
scsi: scsi_debug: Don't call kcalloc() if size arg is zero
scsi: core: Remove command size deduction from scsi_setup_scsi_cmnd()
scsi: scsi_ioctl: Validate command size
scsi: ufs: ufshpb: Properly handle max-single-cmd
scsi: core: Avoid leaving shost->last_reset with stale value if EH does not run
scsi: bsg: Fix errno when scsi_bsg_register_queue() fails
scsi: sr: Remove duplicate assignment
scsi: ufs: ufs-exynos: Introduce ExynosAuto v9 virtual host
scsi: ufs: ufs-exynos: Multi-host configuration for ExynosAuto v9
scsi: ufs: ufs-exynos: Support ExynosAuto v9 UFS
scsi: ufs: ufs-exynos: Add pre/post_hce_enable drv callbacks
scsi: ufs: ufs-exynos: Factor out priv data init
scsi: ufs: ufs-exynos: Add EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR option
scsi: ufs: ufs-exynos: Support custom version of ufs_hba_variant_ops
scsi: ufs: ufs-exynos: Add setup_clocks callback
scsi: ufs: ufs-exynos: Add refclkout_stop control
scsi: ufs: ufs-exynos: Simplify drv_data retrieval
scsi: ufs: ufs-exynos: Change pclk available max value
scsi: ufs: Add quirk to enable host controller without PH configuration
scsi: ufs: Add quirk to handle broken UIC command
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The changes to issue the abort from the scmd->abort_work instead of the EH
thread introduced a problem if eh_deadline is used. If aborting the
command(s) is successful, and there are never any scmds added to the
shost->eh_cmd_q, there is no code path which will reset the ->last_reset
value back to zero.
The effect of this is that after a successful abort with no EH thread
activity, a subsequent timeout, perhaps a long time later, might
immediately be considered past a user-set eh_deadline time, and the host
will be reset with no attempt at recovery.
Fix this by resetting ->last_reset back to zero in scmd_eh_abort_handler()
if it is determined that the EH thread will not run to do this.
Thanks to Gopinath Marappan for investigating this problem.
Link: https://lore.kernel.org/r/20211029194311.17504-2-emilne@redhat.com
Fixes: e494f6a72839 ("[SCSI] improved eh timeout handler")
Cc: stable@vger.kernel.org
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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v4.17 commit 86b87cde0b55 ("scsi: core: host template attribute groups")
introduced explicit sysfs_create_groups() in scsi_sysfs_add_sdev()
and sysfs_remove_groups() in __scsi_remove_device(), both for sdev_gendev,
based on a new field const struct attribute_group **sdev_groups
of struct scsi_host_template.
Commit 92c4b58b15c5 ("scsi: core: Register sysfs attributes earlier")
removed above explicit (de)registration of scsi_device attribute groups.
It also converted all scsi_device attributes and attribute_groups to
end up in a new field const struct attribute_group *gendev_attr_groups[6]
of struct scsi_device. However, that new field was not used anywhere.
Surprisingly, this only caused missing LLDD specific scsi_device sysfs
attributes. Whereas, scsi core attributes from scsi_sdev_attr_groups
did continue to exist because of scsi_dev_type.groups.
We separate scsi core attibutes from LLDD specific attributes.
Hence, we keep the initializing assignment scsi_dev_type =
{ .groups = scsi_sdev_attr_groups, } as this takes care of core
attributes. Without the separation, it would cause attribute double
registration due to scsi_dev_type.groups and sdev_gendev.groups.
Julian suggested to assign the sdev_groups pointer of the
scsi_host_template directly to the groups pointer of sdev_gendev.
This way we can delete the container scsi_device.gendev_attr_groups
and the loop copying each entry from hostt->sdev_groups to
sdev->gendev_attr_groups.
Alternative approaches ruled out:
Assigning gendev_attr_groups to sdev_dev has no visible effect.
Assigning sdev->gendev_attr_groups to scsi_dev_type.groups
caused scsi_device of all scsi host types to get LLDD specific
attributes of the LLDD for which the last sdev alloc happened to occur,
as that overwrote scsi_dev_type.groups,
e.g. scsi_debug had zfcp-specific scsi_device attributes.
Link: https://lore.kernel.org/r/20211026014240.4098365-1-maier@linux.ibm.com
Fixes: 92c4b58b15c5 ("scsi: core: Register sysfs attributes earlier")
Suggested-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"This set is mostly small fixes and cleanups, so more of a janitorial
update for this cycle"
* tag 'pwm/for-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: vt8500: Rename pwm_busy_wait() to make it obviously driver-specific
dt-bindings: pwm: tpu: Add R-Car M3-W+ device tree bindings
dt-bindings: pwm: tpu: Add R-Car V3U device tree bindings
pwm: pwm-samsung: Trigger manual update when disabling PWM
pwm: visconti: Simplify using devm_pwmchip_add()
pwm: samsung: Describe driver in Kconfig
pwm: Make it explicit that pwm_apply_state() might sleep
pwm: Add might_sleep() annotations for !CONFIG_PWM API functions
pwm: atmel: Drop unused header
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At least some implementations sleep. So mark pwm_apply_state() with a
might_sleep() to make callers aware. In the worst case this uncovers a
valid atomic user, then we revert this patch and at least gained some more
knowledge and then can work on a concept similar to
gpio_get_value/gpio_get_value_cansleep.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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The normal implementations of these functions make use of mutexes. To
make it obvious that these functions might sleep also add annotations to
the dummy implementations in the !CONFIG_PWM case.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of fixes for 5.16-rc1, notably for a few regressions that
were found in 5.15 and pre-rc1:
- revert of the unification of SG-buffer helper functions on x86 and
the relevant fix
- regression fixes for mmap after the recent code refactoring
- two NULL dereference fixes in HD-audio controller driver
- UAF fixes in ALSA timer core
- a few usual HD-audio and FireWire quirks"
* tag 'sound-fix-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: fireworks: add support for Loud Onyx 1200f quirk
ALSA: hda: fix general protection fault in azx_runtime_idle
ALSA: hda: Free card instance properly at probe errors
ALSA: hda/realtek: Add quirk for HP EliteBook 840 G7 mute LED
ALSA: memalloc: Remove a stale comment
ALSA: synth: missing check for possible NULL after the call to kstrdup
ALSA: memalloc: Use proper SG helpers for noncontig allocations
ALSA: pci: rme: Fix unaligned buffer addresses
ALSA: firewire-motu: add support for MOTU Track 16
ALSA: PCM: Fix NULL dereference at mmap checks
ALSA: hda/realtek: Add quirk for ASUS UX550VE
ALSA: timer: Unconditionally unlink slave instances, too
ALSA: memalloc: Catch call with NULL snd_dma_buffer pointer
Revert "ALSA: memalloc: Convert x86 SG-buffer handling with non-contiguous type"
ALSA: hda/realtek: Add a quirk for Acer Spin SP513-54N
ALSA: firewire-motu: add support for MOTU Traveler mk3
ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ
ALSA: timer: Fix use-after-free problem
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This reverts commit 2d9ea39917a4e4293bc2caea902c7059a330b611.
We've got a regression report showing that the audio got broken the
device over AMD IOMMU. The conversion assumed the wrong pointer /
page mapping for the indirect mapping case, and we need to correct
this urgently, so let's revert it for now.
Fixes: 2d9ea39917a4 ("ALSA: memalloc: Convert x86 SG-buffer handling with non-contiguous type")
Reported-and-tested-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Link: https://lore.kernel.org/r/20211104180846.16340-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Pull more drm updates from Dave Airlie:
"I missed a drm-misc-next pull for the main pull last week. It wasn't
that major and isn't the bulk of this at all. This has a bunch of
fixes all over, a lot for amdgpu and i915.
bridge:
- HPD improvments for lt9611uxc
- eDP aux-bus support for ps8640
- LVDS data-mapping selection support
ttm:
- remove huge page functionality (needs reworking)
- fix a race condition during BO eviction
panels:
- add some new panels
fbdev:
- fix double-free
- remove unused scrolling acceleration
- CONFIG_FB dep improvements
locking:
- improve contended locking logging
- naming collision fix
dma-buf:
- add dma_resv_for_each_fence iterator
- fix fence refcounting bug
- name locking fixesA
prime:
- fix object references during mmap
nouveau:
- various code style changes
- refcount fix
- device removal fixes
- protect client list with a mutex
- fix CE0 address calculation
i915:
- DP rates related fixes
- Revert disabling dual eDP that was causing state readout problems
- put the cdclk vtables in const data
- Fix DVO port type for older platforms
- Fix blankscreen by turning DP++ TMDS output buffers on encoder->shutdown
- CCS FBs related fixes
- Fix recursive lock in GuC submission
- Revert guc_id from i915_request tracepoint
- Build fix around dmabuf
amdgpu:
- GPU reset fix
- Aldebaran fix
- Yellow Carp fixes
- DCN2.1 DMCUB fix
- IOMMU regression fix for Picasso
- DSC display fixes
- BPC display calculation fixes
- Other misc display fixes
- Don't allow partial copy from user for DC debugfs
- SRIOV fixes
- GFX9 CSB pin count fix
- Various IP version check fixes
- DP 2.0 fixes
- Limit DCN1 MPO fix to DCN1
amdkfd:
- SVM fixes
- Fix gfx version for renoir
- Reset fixes
udl:
- timeout fix
imx:
- circular locking fix
virtio:
- NULL ptr deref fix"
* tag 'drm-next-2021-11-12' of git://anongit.freedesktop.org/drm/drm: (126 commits)
drm/ttm: Double check mem_type of BO while eviction
drm/amdgpu: add missed support for UVD IP_VERSION(3, 0, 64)
drm/amdgpu: drop jpeg IP initialization in SRIOV case
drm/amd/display: reject both non-zero src_x and src_y only for DCN1x
drm/amd/display: Add callbacks for DMUB HPD IRQ notifications
drm/amd/display: Don't lock connection_mutex for DMUB HPD
drm/amd/display: Add comment where CONFIG_DRM_AMD_DC_DCN macro ends
drm/amdkfd: Fix retry fault drain race conditions
drm/amdkfd: lower the VAs base offset to 8KB
drm/amd/display: fix exit from amdgpu_dm_atomic_check() abruptly
drm/amd/amdgpu: fix the kfd pre_reset sequence in sriov
drm/amdgpu: fix uvd crash on Polaris12 during driver unloading
drm/i915/adlp/fb: Prevent the mapping of redundant trailing padding NULL pages
drm/i915/fb: Fix rounding error in subsampled plane size calculation
drm/i915/hdmi: Turn DP++ TMDS output buffers back on in encoder->shutdown()
drm/locking: fix __stack_depot_* name conflict
drm/virtio: Fix NULL dereference error in virtio_gpu_poll
drm/amdgpu: fix SI handling in amdgpu_device_asic_has_dc_support()
drm/amdgpu: Fix dangling kfd_bo pointer for shared BOs
drm/amd/amdkfd: Don't sent command to HWS on kfd reset
...
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I got a drm-fixes which had some 5.15 stuff in it, so to avoid
the mess just backmerge here.
Linux 5.15
Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
Removed the TTM Huge Page functionnality to address a crash, a timeout
fix for udl, CONFIG_FB dependency improvements, a fix for a circular
locking depency in imx, a NULL pointer dereference fix for virtio, and a
naming collision fix for drm/locking.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211110082114.vfpkpnecwdfg27lk@gilmour
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The huge page functionality in TTM does not work safely because PUD and
PMD entries do not have a special bit.
get_user_pages_fast() considers any page that passed pmd_huge() as
usable:
if (unlikely(pmd_trans_huge(pmd) || pmd_huge(pmd) ||
pmd_devmap(pmd))) {
And vmf_insert_pfn_pmd_prot() unconditionally sets
entry = pmd_mkhuge(pfn_t_pmd(pfn, prot));
eg on x86 the page will be _PAGE_PRESENT | PAGE_PSE.
As such gup_huge_pmd() will try to deref a struct page:
head = try_grab_compound_head(pmd_page(orig), refs, flags);
and thus crash.
Thomas further notices that the drivers are not expecting the struct page
to be used by anything - in particular the refcount incr above will cause
them to malfunction.
Thus everything about this is not able to fully work correctly considering
GUP_fast. Delete it entirely. It can return someday along with a proper
PMD/PUD_SPECIAL bit in the page table itself to gate GUP_fast.
Fixes: 314b6580adc5 ("drm/ttm, drm/vmwgfx: Support huge TTM pagefaults")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Thomas Hellström <thomas.helllstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
[danvet: Update subject per Thomas' &Christian's review]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/0-v2-a44694790652+4ac-ttm_pmd_jgg@nvidia.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.16:
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- fbdev: Fix double-free, Remove unused scrolling acceleration
- locking: improve logging for contented locks without backoff
- dma-buf: Add dma_resv_for_each_fence iterator, and conversion of
users
Driver Changes:
- nouveau: Various code style improvements
- bridge: HPD improvements for lt9611uxc, eDP aux-bus support for
ps8640, lvds-codec data-mapping selection support
- panels: Vivax TPC-9150, Innolux G070Y2-T02, LOGIC Technologies
LTTD800480070-L2RT, Sharp LS060T1SX01,
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211014120452.2wicnt6hobu3kbwb@gilmour
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Scroll acceleration is disabled in fbcon by hard-wiring
p->scrollmode = SCROLL_REDRAW. Remove the obsolete code in fbcon.c
and fbdev/core/
Signed-off-by: Claudio Suarez <cssk@net-c.es>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YVXTYqszZix9TxjJ@gineta.localdomain
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If drm_modeset_lock() returns -EDEADLK, the caller is supposed to drop
all currently held locks using drm_modeset_backoff(). Failing to do so
will result in warnings and backtraces on the paths trying to lock a
contended lock. Add support for optionally printing the backtrace on the
path that hit the deadlock and didn't gracefully handle the situation.
For example, the patch [1] inadvertently dropped the return value check
and error return on replacing calc_watermark_data() with
intel_compute_global_watermarks(). The backtraces on the subsequent
locking paths hitting WARN_ON(ctx->contended) were unhelpful, but adding
the backtrace to the deadlock path produced this helpful printout:
<7> [98.002465] drm_modeset_lock attempting to lock a contended lock without backoff:
drm_modeset_lock+0x107/0x130
drm_atomic_get_plane_state+0x76/0x150
skl_compute_wm+0x251d/0x2b20 [i915]
intel_atomic_check+0x1942/0x29e0 [i915]
drm_atomic_check_only+0x554/0x910
drm_atomic_nonblocking_commit+0xe/0x50
drm_mode_atomic_ioctl+0x8c2/0xab0
drm_ioctl_kernel+0xac/0x140
Add new CONFIG_DRM_DEBUG_MODESET_LOCK to enable modeset lock debugging
with stack depot and trace.
[1] https://lore.kernel.org/r/20210924114741.15940-4-jani.nikula@intel.com
v2:
- default y if DEBUG_WW_MUTEX_SLOWPATH (Daniel)
- depends on DEBUG_KERNEL
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Airlie <airlied@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211001091444.8177-1-jani.nikula@intel.com
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Correct the argument name of @placement and added @sg description for
ttm_bo_init() and ttm_bo_init_reserved().
Argument @flags was replaced to @placement by Jerome in commit
09855acb1c2e3779f25317ec9a8ffe1b1784a4a8
Argument @sg was added by Dave in commit
129b78bfca591e736e56a294f0e357d73d938f7e
Signed-off-by: Amos Kong <amos@sietium.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/38eac09bf2ddd6088cc8a126e6bc4792eaa2dc88.1633462176.git.amos@sietium.com
Signed-off-by: Christian König <christian.koenig@amd.com>
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Cache the count of shared fences in the iterator to avoid dereferencing
the dma_resv_object outside the RCU protection. Otherwise iterator and its
users can observe an incosistent state which makes it impossible to use
safely. Such as:
<6> [187.517041] [IGT] gem_sync: executing
<7> [187.536343] i915 0000:00:02.0: [drm:i915_gem_context_create_ioctl [i915]] HW context 1 created
<7> [187.536793] i915 0000:00:02.0: [drm:i915_gem_context_create_ioctl [i915]] HW context 1 created
<6> [187.551235] [IGT] gem_sync: starting subtest basic-many-each
<1> [188.935462] BUG: kernel NULL pointer dereference, address: 0000000000000010
<1> [188.935485] #PF: supervisor write access in kernel mode
<1> [188.935495] #PF: error_code(0x0002) - not-present page
<6> [188.935504] PGD 0 P4D 0
<4> [188.935512] Oops: 0002 [#1] PREEMPT SMP NOPTI
<4> [188.935521] CPU: 2 PID: 1467 Comm: gem_sync Not tainted 5.15.0-rc4-CI-Patchwork_21264+ #1
<4> [188.935535] Hardware name: /NUC6CAYB, BIOS AYAPLCEL.86A.0049.2018.0508.1356 05/08/2018
<4> [188.935546] RIP: 0010:dma_resv_get_fences+0x116/0x2d0
<4> [188.935560] Code: 10 85 c0 7f c9 be 03 00 00 00 e8 15 8b df ff eb bd e8 8e c6 ff ff eb b6 41 8b 04 24 49 8b 55 00 48 89 e7 8d 48 01 41 89 0c 24 <4c> 89 34 c2 e8 41 f2 ff ff 49 89 c6 48 85 c0 75 8c 48 8b 44 24 10
<4> [188.935583] RSP: 0018:ffffc900011dbcc8 EFLAGS: 00010202
<4> [188.935593] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000000000001
<4> [188.935603] RDX: 0000000000000010 RSI: ffffffff822e343c RDI: ffffc900011dbcc8
<4> [188.935613] RBP: ffffc900011dbd48 R08: ffff88812d255bb8 R09: 00000000fffffffe
<4> [188.935623] R10: 0000000000000001 R11: 0000000000000000 R12: ffffc900011dbd44
<4> [188.935633] R13: ffffc900011dbd50 R14: ffff888113d29cc0 R15: 0000000000000000
<4> [188.935643] FS: 00007f68d17e9700(0000) GS:ffff888277900000(0000) knlGS:0000000000000000
<4> [188.935655] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [188.935665] CR2: 0000000000000010 CR3: 000000012d0a4000 CR4: 00000000003506e0
<4> [188.935676] Call Trace:
<4> [188.935685] i915_gem_object_wait+0x1ff/0x410 [i915]
<4> [188.935988] i915_gem_wait_ioctl+0xf2/0x2a0 [i915]
<4> [188.936272] ? i915_gem_object_wait+0x410/0x410 [i915]
<4> [188.936533] drm_ioctl_kernel+0xae/0x140
<4> [188.936546] drm_ioctl+0x201/0x3d0
<4> [188.936555] ? i915_gem_object_wait+0x410/0x410 [i915]
<4> [188.936820] ? __fget_files+0xc2/0x1c0
<4> [188.936830] ? __fget_files+0xda/0x1c0
<4> [188.936839] __x64_sys_ioctl+0x6d/0xa0
<4> [188.936848] do_syscall_64+0x3a/0xb0
<4> [188.936859] entry_SYSCALL_64_after_hwframe+0x44/0xae
If the shared object has changed during the RCU unlocked period
callers will correctly handle the restart on the next iteration.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: 96601e8a4755 ("dma-buf: use new iterator in dma_resv_copy_fences")
Fixes: d3c80698c9f5 ("dma-buf: use new iterator in dma_resv_get_fences v3")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4274
Cc: Christian König <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20211008095007.972693-1-tvrtko.ursulin@linux.intel.com
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
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A simpler version of the iterator to be used when the dma_resv object is
locked.
v2: fix index check here as well
v3: minor coding improvement, some documentation cleanup
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211006123609.2026-1-christian.koenig@amd.com
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"Just one new driver (Cypress StreetFighter touchkey), and no input
core changes this time.
Plus various fixes and enhancements to existing drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (54 commits)
Input: iforce - fix control-message timeout
Input: wacom_i2c - use macros for the bit masks
Input: ili210x - reduce sample period to 15ms
Input: ili210x - improve polled sample spacing
Input: ili210x - special case ili251x sample read out
Input: elantench - fix misreporting trackpoint coordinates
Input: synaptics-rmi4 - Fix device hierarchy
Input: i8042 - Add quirk for Fujitsu Lifebook T725
Input: cap11xx - add support for cap1206
Input: remove unused header <linux/input/cy8ctmg110_pdata.h>
Input: ili210x - add ili251x firmware update support
Input: ili210x - export ili251x version details via sysfs
Input: ili210x - use resolution from ili251x firmware
Input: pm8941-pwrkey - respect reboot_mode for warm reset
reboot: export symbol 'reboot_mode'
Input: max77693-haptic - drop unneeded MODULE_ALIAS
Input: cpcap-pwrbutton - do not set input parent explicitly
Input: max8925_onkey - don't mark comment as kernel-doc
Input: ads7846 - do not attempt IRQ workaround when deferring probe
Input: ads7846 - use input_set_capability()
...
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Commit 83b41248ed04 ("Input: cy8ctmg110_ts - switch to using gpiod API")
remove the last use of <linux/input/cy8ctmg110_pdata.h> but left the header
file behind. Nothing uses it now, delete it.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20211102220203.940290-6-corbet@lwn.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The functions in the platform data struct to initialize, cleanup and
apply custom filters are not in use by any mainline board.
Remove support for them to pave the road for more cleanups to come.
The enum was moved as it has no users outside of the driver code
itself.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20210907200726.2034962-3-daniel@zonque.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This reverts commit 81c7c0a350bfe9306ad9fb10356534ede8f4ab31. The idea
to make write method mandatory was flawed as several client drivers
(such as atkbd) check for presence of write() method to adjust behavior
of the driver.
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Given that all serio drivers except one implement write() method
let's make it mandatory to avoid testing for its presence whenever
we attempt to use it.
Link: https://lore.kernel.org/r/YFgUxG/TljMuVeQ3@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sync up with the mainline to get the latest parport API.
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"This includes new ioctls to get and set parameters and in particular
the backup switch mode that is needed for some RTCs to actually enable
the backup voltage (and have a useful RTC).
The same interface can also be used to get the actual features
supported by the RTC so userspace has a better way than trying and
failing.
Summary:
Subsystem:
- Add new ioctl to get and set extra RTC parameters, this includes
backup switch mode
- Expose available features to userspace, in particular, when alarmas
have a resolution of one minute instead of a second.
- Let the core handle those alarms with a minute resolution
New driver:
- MSTAR MSC313 RTC
Drivers:
- Add SPI ID table where necessary
- Add BSM support for rv3028, rv3032 and pcf8523
- s3c: set RTC range
- rx8025: set range, implement .set_offset and .read_offset"
* tag 'rtc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
rtc: rx8025: use .set_offset/.read_offset
rtc: rx8025: use rtc_add_group
rtc: rx8025: clear RTC_FEATURE_ALARM when alarm are not supported
rtc: rx8025: set range
rtc: rx8025: let the core handle the alarm resolution
rtc: rx8025: switch to devm_rtc_allocate_device
rtc: ab8500: let the core handle the alarm resolution
rtc: ab-eoz9: support UIE when available
rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPT
rtc: rv3032: let the core handle the alarm resolution
rtc: s35390a: let the core handle the alarm resolution
rtc: handle alarms with a minute resolution
rtc: pcf85063: silence cppcheck warning
rtc: rv8803: fix writing back ctrl in flag register
rtc: s3c: Add time range
rtc: s3c: Extract read/write IO into separate functions
rtc: s3c: Remove usage of devm_rtc_device_register()
rtc: tps80031: Remove driver
rtc: sun6i: Allow probing without an early clock provider
rtc: pcf8523: add BSM support
...
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BSM or Backup Switch Mode is a common feature on RTCs, allowing to select
how the RTC will decide when to switch from its primary power supply to the
backup power supply. It is necessary to be able to set it from userspace as
there are uses cases where it has to be done dynamically.
Supported values are:
RTC_BSM_DISABLED: disabled
RTC_BSM_DIRECT: switching will happen as soon as Vbackup > Vdd
RTC_BSM_LEVEL: switching will happen around a threshold, usually with an
hysteresis
RTC_BSM_STANDBY: switching will not happen until Vdd > Vbackup, this is
useful to ensure the RTC doesn't draw any power until the device is first
powered on.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-6-alexandre.belloni@bootlin.com
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Add a new parameter allowing the get and set the correction using ioctls
instead of just sysfs.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-5-alexandre.belloni@bootlin.com
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Add a new feature for RTCs able to correct the oscillator imprecision. This
is also called offset or trimming. Such drivers have a .set_offset callback,
use that to set the feature bit from the core.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-4-alexandre.belloni@bootlin.com
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Add an ioctl allowing to get and set extra parameters for an RTC. For now,
only handle getting available features.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-3-alexandre.belloni@bootlin.com
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Add more alarm related features to be declared by drivers.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018151933.76865-2-alexandre.belloni@bootlin.com
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