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Merge misc fixes from Andrew Morton:
"14 patches.
Subsystems affected by this patch series: mm (kasan, gup, pagecache,
and kfence), MAINTAINERS, mailmap, nds32, gcov, ocfs2, ia64, and lib"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
lib: fix kconfig dependency on ARCH_WANT_FRAME_POINTERS
kfence, x86: fix preemptible warning on KPTI-enabled systems
lib/test_kasan_module.c: suppress unused var warning
kasan: fix conflict with page poisoning
fs: direct-io: fix missing sdio->boundary
ia64: fix user_stack_pointer() for ptrace()
ocfs2: fix deadlock between setattr and dio_end_io_write
gcov: re-fix clang-11+ support
nds32: flush_dcache_page: use page_mapping_file to avoid races with swapoff
mm/gup: check page posion status for coredump.
.mailmap: fix old email addresses
mailmap: update email address for Jordan Crouse
treewide: change my e-mail address, fix my name
MAINTAINERS: update CZ.NIC's Turris information
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.12-rc7, including fixes from can, ipsec,
mac80211, wireless, and bpf trees.
No scary regressions here or in the works, but small fixes for 5.12
changes keep coming.
Current release - regressions:
- virtio: do not pull payload in skb->head
- virtio: ensure mac header is set in virtio_net_hdr_to_skb()
- Revert "net: correct sk_acceptq_is_full()"
- mptcp: revert "mptcp: provide subflow aware release function"
- ethernet: lan743x: fix ethernet frame cutoff issue
- dsa: fix type was not set for devlink port
- ethtool: remove link_mode param and derive link params from driver
- sched: htb: fix null pointer dereference on a null new_q
- wireless: iwlwifi: Fix softirq/hardirq disabling in
iwl_pcie_enqueue_hcmd()
- wireless: iwlwifi: fw: fix notification wait locking
- wireless: brcmfmac: p2p: Fix deadlock introduced by avoiding the
rtnl dependency
Current release - new code bugs:
- napi: fix hangup on napi_disable for threaded napi
- bpf: take module reference for trampoline in module
- wireless: mt76: mt7921: fix airtime reporting and related tx hangs
- wireless: iwlwifi: mvm: rfi: don't lock mvm->mutex when sending
config command
Previous releases - regressions:
- rfkill: revert back to old userspace API by default
- nfc: fix infinite loop, refcount & memory leaks in LLCP sockets
- let skb_orphan_partial wake-up waiters
- xfrm/compat: Cleanup WARN()s that can be user-triggered
- vxlan, geneve: do not modify the shared tunnel info when PMTU
triggers an ICMP reply
- can: fix msg_namelen values depending on CAN_REQUIRED_SIZE
- can: uapi: mark union inside struct can_frame packed
- sched: cls: fix action overwrite reference counting
- sched: cls: fix err handler in tcf_action_init()
- ethernet: mlxsw: fix ECN marking in tunnel decapsulation
- ethernet: nfp: Fix a use after free in nfp_bpf_ctrl_msg_rx
- ethernet: i40e: fix receiving of single packets in xsk zero-copy
mode
- ethernet: cxgb4: avoid collecting SGE_QBASE regs during traffic
Previous releases - always broken:
- bpf: Refuse non-O_RDWR flags in BPF_OBJ_GET
- bpf: Refcount task stack in bpf_get_task_stack
- bpf, x86: Validate computation of branch displacements
- ieee802154: fix many similar syzbot-found bugs
- fix NULL dereferences in netlink attribute handling
- reject unsupported operations on monitor interfaces
- fix error handling in llsec_key_alloc()
- xfrm: make ipv4 pmtu check honor ip header df
- xfrm: make hash generation lock per network namespace
- xfrm: esp: delete NETIF_F_SCTP_CRC bit from features for esp
offload
- ethtool: fix incorrect datatype in set_eee ops
- xdp: fix xdp_return_frame() kernel BUG throw for page_pool memory
model
- openvswitch: fix send of uninitialized stack memory in ct limit
reply
Misc:
- udp: add get handling for UDP_GRO sockopt"
* tag 'net-5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (182 commits)
net: fix hangup on napi_disable for threaded napi
net: hns3: Trivial spell fix in hns3 driver
lan743x: fix ethernet frame cutoff issue
net: ipv6: check for validity before dereferencing cfg->fc_nlinfo.nlh
net: dsa: lantiq_gswip: Configure all remaining GSWIP_MII_CFG bits
net: dsa: lantiq_gswip: Don't use PHY auto polling
net: sched: sch_teql: fix null-pointer dereference
ipv6: report errors for iftoken via netlink extack
net: sched: fix err handler in tcf_action_init()
net: sched: fix action overwrite reference counting
Revert "net: sched: bump refcount for new action in ACT replace mode"
ice: fix memory leak of aRFS after resuming from suspend
i40e: Fix sparse warning: missing error code 'err'
i40e: Fix sparse error: 'vsi->netdev' could be null
i40e: Fix sparse error: uninitialized symbol 'ring'
i40e: Fix sparse errors in i40e_txrx.c
i40e: Fix parameters in aq_get_phy_register()
nl80211: fix beacon head validation
bpf, x86: Validate computation of branch displacements for x86-32
bpf, x86: Validate computation of branch displacements for x86-64
...
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Pull io_uring fixes from Jens Axboe:
"Two minor fixups for the reissue logic, and one for making sure that
unbounded work is canceled on io-wq exit"
* tag 'io_uring-5.12-2021-04-09' of git://git.kernel.dk/linux-block:
io-wq: cancel unbounded works on io-wq destroy
io_uring: fix rw req completion
io_uring: clear F_REISSUE right after getting it
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When LATENCYTOP, LOCKDEP, or FAULT_INJECTION_STACKTRACE_FILTER is
enabled and ARCH_WANT_FRAME_POINTERS is disabled, Kbuild gives a warning
such as:
WARNING: unmet direct dependencies detected for FRAME_POINTER
Depends on [n]: DEBUG_KERNEL [=y] && (M68K || UML || SUPERH) || ARCH_WANT_FRAME_POINTERS [=n] || MCOUNT [=n]
Selected by [y]:
- LATENCYTOP [=y] && DEBUG_KERNEL [=y] && STACKTRACE_SUPPORT [=y] && PROC_FS [=y] && !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM && !ARC && !X86
Depending on ARCH_WANT_FRAME_POINTERS causes a recursive dependency
error. ARCH_WANT_FRAME_POINTERS is to be selected by the architecture,
and is not supposed to be overridden by other config options.
Link: https://lkml.kernel.org/r/20210329165329.27994-1-julianbraha@gmail.com
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Necip Fazil Yildiran <fazilyildiran@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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On systems with KPTI enabled, we can currently observe the following
warning:
BUG: using smp_processor_id() in preemptible
caller is invalidate_user_asid+0x13/0x50
CPU: 6 PID: 1075 Comm: dmesg Not tainted 5.12.0-rc4-gda4a2b1a5479-kfence_1+ #1
Hardware name: Hewlett-Packard HP Pro 3500 Series/2ABF, BIOS 8.11 10/24/2012
Call Trace:
dump_stack+0x7f/0xad
check_preemption_disabled+0xc8/0xd0
invalidate_user_asid+0x13/0x50
flush_tlb_one_kernel+0x5/0x20
kfence_protect+0x56/0x80
...
While it normally makes sense to require preemption to be off, so that
the expected CPU's TLB is flushed and not another, in our case it really
is best-effort (see comments in kfence_protect_page()).
Avoid the warning by disabling preemption around flush_tlb_one_kernel().
Link: https://lore.kernel.org/lkml/YGIDBAboELGgMgXy@elver.google.com/
Link: https://lkml.kernel.org/r/20210330065737.652669-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Tomi Sarvela <tomi.p.sarvela@intel.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Local `unused' is intentionally unused - it is there to suppress
__must_check warnings.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lkml.kernel.org/r/202104050216.HflRxfJm-lkp@intel.com
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When page poisoning is enabled, it accesses memory that is marked as
poisoned by KASAN, which leas to false-positive KASAN reports.
Suppress the reports by adding KASAN annotations to unpoison_page()
(poison_page() already has them).
Link: https://lkml.kernel.org/r/2dc799014d31ac13fd97bd906bad33e16376fc67.1617118501.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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I encountered a hung task issue, but not a performance one. I run DIO
on a device (need lba continuous, for example open channel ssd), maybe
hungtask in below case:
DIO: Checkpoint:
get addr A(at boundary), merge into BIO,
no submit because boundary missing
flush dirty data(get addr A+1), wait IO(A+1)
writeback timeout, because DIO(A) didn't submit
get addr A+2 fail, because checkpoint is doing
dio_send_cur_page() may clear sdio->boundary, so prevent it from missing
a boundary.
Link: https://lkml.kernel.org/r/20210322042253.38312-1-jack.qiu@huawei.com
Fixes: b1058b981272 ("direct-io: submit bio after boundary buffer is added to it")
Signed-off-by: Jack Qiu <jack.qiu@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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ia64 has two stacks:
- memory stack (or stack), pointed at by by r12
- register backing store (register stack), pointed at by
ar.bsp/ar.bspstore with complications around dirty
register frame on CPU.
In [1] Dmitry noticed that PTRACE_GET_SYSCALL_INFO returns the register
stack instead memory stack.
The bug comes from the fact that user_stack_pointer() and
current_user_stack_pointer() don't return the same register:
ulong user_stack_pointer(struct pt_regs *regs) { return regs->ar_bspstore; }
#define current_user_stack_pointer() (current_pt_regs()->r12)
The change gets both back in sync.
I think ptrace(PTRACE_GET_SYSCALL_INFO) is the only affected user by
this bug on ia64.
The change fixes 'rt_sigreturn.gen.test' strace test where it was
observed initially.
Link: https://bugs.gentoo.org/769614 [1]
Link: https://lkml.kernel.org/r/20210331084447.2561532-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Reported-by: Dmitry V. Levin <ldv@altlinux.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The following deadlock is detected:
truncate -> setattr path is waiting for pending direct IO to be done (inode->i_dio_count become zero) with inode->i_rwsem held (down_write).
PID: 14827 TASK: ffff881686a9af80 CPU: 20 COMMAND: "ora_p005_hrltd9"
#0 __schedule at ffffffff818667cc
#1 schedule at ffffffff81866de6
#2 inode_dio_wait at ffffffff812a2d04
#3 ocfs2_setattr at ffffffffc05f322e [ocfs2]
#4 notify_change at ffffffff812a5a09
#5 do_truncate at ffffffff812808f5
#6 do_sys_ftruncate.constprop.18 at ffffffff81280cf2
#7 sys_ftruncate at ffffffff81280d8e
#8 do_syscall_64 at ffffffff81003949
#9 entry_SYSCALL_64_after_hwframe at ffffffff81a001ad
dio completion path is going to complete one direct IO (decrement
inode->i_dio_count), but before that it hung at locking inode->i_rwsem:
#0 __schedule+700 at ffffffff818667cc
#1 schedule+54 at ffffffff81866de6
#2 rwsem_down_write_failed+536 at ffffffff8186aa28
#3 call_rwsem_down_write_failed+23 at ffffffff8185a1b7
#4 down_write+45 at ffffffff81869c9d
#5 ocfs2_dio_end_io_write+180 at ffffffffc05d5444 [ocfs2]
#6 ocfs2_dio_end_io+85 at ffffffffc05d5a85 [ocfs2]
#7 dio_complete+140 at ffffffff812c873c
#8 dio_aio_complete_work+25 at ffffffff812c89f9
#9 process_one_work+361 at ffffffff810b1889
#10 worker_thread+77 at ffffffff810b233d
#11 kthread+261 at ffffffff810b7fd5
#12 ret_from_fork+62 at ffffffff81a0035e
Thus above forms ABBA deadlock. The same deadlock was mentioned in
upstream commit 28f5a8a7c033 ("ocfs2: should wait dio before inode lock
in ocfs2_setattr()"). It seems that that commit only removed the
cluster lock (the victim of above dead lock) from the ABBA deadlock
party.
End-user visible effects: Process hang in truncate -> ocfs2_setattr path
and other processes hang at ocfs2_dio_end_io_write path.
This is to fix the deadlock itself. It removes inode_lock() call from
dio completion path to remove the deadlock and add ip_alloc_sem lock in
setattr path to synchronize the inode modifications.
[wen.gang.wang@oracle.com: remove the "had_alloc_lock" as suggested]
Link: https://lkml.kernel.org/r/20210402171344.1605-1-wen.gang.wang@oracle.com
Link: https://lkml.kernel.org/r/20210331203654.3911-1-wen.gang.wang@oracle.com
Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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LLVM changed the expected function signature for llvm_gcda_emit_function()
in the clang-11 release. Users of clang-11 or newer may have noticed
their kernels producing invalid coverage information:
$ llvm-cov gcov -a -c -u -f -b <input>.gcda -- gcno=<input>.gcno
1 <func>: checksum mismatch, \
(<lineno chksum A>, <cfg chksum B>) != (<lineno chksum A>, <cfg chksum C>)
2 Invalid .gcda File!
...
Fix up the function signatures so calling this function interprets its
parameters correctly and computes the correct cfg checksum. In
particular, in clang-11, the additional checksum is no longer optional.
Link: https://reviews.llvm.org/rG25544ce2df0daa4304c07e64b9c8b0f7df60c11d
Link: https://lkml.kernel.org/r/20210408184631.1156669-1-ndesaulniers@google.com
Reported-by: Prasad Sodagudi <psodagud@quicinc.com>
Tested-by: Prasad Sodagudi <psodagud@quicinc.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Cc: <stable@vger.kernel.org> [5.4+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit cb9f753a3731 ("mm: fix races between swapoff and flush dcache")
updated flush_dcache_page implementations on several architectures to
use page_mapping_file() in order to avoid races between page_mapping()
and swapoff().
This update missed arch/nds32 and there is a possibility of a race
there.
Replace page_mapping() with page_mapping_file() in nds32 implementation
of flush_dcache_page().
Link: https://lkml.kernel.org/r/20210330175126.26500-1-rppt@kernel.org
Fixes: cb9f753a3731 ("mm: fix races between swapoff and flush dcache")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Greentime Hu <green.hu@gmail.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When we do coredump for user process signal, this may be an SIGBUS signal
with BUS_MCEERR_AR or BUS_MCEERR_AO code, which means this signal is
resulted from ECC memory fail like SRAR or SRAO, we expect the memory
recovery work is finished correctly, then the get_dump_page() will not
return the error page as its process pte is set invalid by
memory_failure().
But memory_failure() may fail, and the process's related pte may not be
correctly set invalid, for current code, we will return the poison page,
get it dumped, and then lead to system panic as its in kernel code.
So check the poison status in get_dump_page(), and if TRUE, return NULL.
There maybe other scenario that is also better to check the posion status
and not to panic, so make a wrapper for this check, Thanks to David's
suggestion(<david@redhat.com>).
[akpm@linux-foundation.org: s/0/false/]
[yaoaili@kingsoft.com: is_page_poisoned() arg cannot be null, per Matthew]
Link: https://lkml.kernel.org/r/20210322115233.05e4e82a@alex-virtual-machine
Link: https://lkml.kernel.org/r/20210319104437.6f30e80d@alex-virtual-machine
Signed-off-by: Aili Yao <yaoaili@kingsoft.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Aili Yao <yaoaili@kingsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Update Nick & Nadia's old addresses.
Link: https://lkml.kernel.org/r/20210406134036.GQ2531743@casper.infradead.org
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Nadia Yvette Chambers <nyc@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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jcrouse at codeaurora.org has started bouncing. Redirect to a more
permanent address.
Link: https://lkml.kernel.org/r/20210325143700.1490518-1-jordan@cosmicpenguin.net
Signed-off-by: Jordan Crouse <jordan@cosmicpenguin.net>
Cc: Alexander Lobakin <alobakin@pm.me>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Change my e-mail address to kabel@kernel.org, and fix my name in
non-code parts (add diacritical mark).
Link: https://lkml.kernel.org/r/20210325171123.28093-2-kabel@kernel.org
Signed-off-by: Marek Behún <kabel@kernel.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add all the files maintained by Turris team, not only for MOX, but also
for Omnia. Change website.
Link: https://lkml.kernel.org/r/20210325171123.28093-1-kabel@kernel.org
Signed-off-by: Marek Behún <kabel@kernel.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fix fw_devlink failure with ".*,nr-gpios" properties
- Doc link reference fixes from Mauro
- Fixes for unaligned FDT handling found on OpenRisc. First, avoid
crash with better error handling when unflattening an unaligned FDT.
Second, fix memory allocations for FDTs to ensure alignment.
* tag 'devicetree-fixes-for-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: property: fw_devlink: do not link ".*,nr-gpios"
dt-bindings:iio:adc: update motorola,cpcap-adc.yaml reference
dt-bindings: fix references for iio-bindings.txt
dt-bindings: don't use ../dir for doc references
of: unittest: overlay: ensure proper alignment of copied FDT
of: properly check for error returned by fdt_get_name()
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Pull drm fixes from Dave Airlie:
"Was relatively quiet this week, but still a few pulls came in, pretty
much small fixes across the board, a couple of regression fixes in the
amdgpu/radeon code, msm has a few minor fixes across the board, a
panel regression fix also.
amdgpu:
- DCN3 fix
- Fix CAC setting regression for TOPAZ
- Fix ttm regression
radeon:
- Fix ttm regression
msm:
- a5xx/a6xx timestamp fix
- microcode version check
- fail path fix
- block programming fix
- error removal fix
i915:
- Fix invalid access to ACPI _DSM objects
xen:
- Fix use-after-free in xen
- minor duplicate defintion cleanup
vc4:
- Reduce fifo threshold on hvs4 to fix a fifo full error
- minor redunantant assignment cleanup
panel:
- Disable TE support for Droid4 and N950"
* tag 'drm-fixes-2021-04-10' of git://anongit.freedesktop.org/drm/drm:
drm/vc4: crtc: Reduce PV fifo threshold on hvs4
drm/vc4: plane: Remove redundant assignment
drm/amdgpu/smu7: fix CAC setting on TOPAZ
drm/radeon: Fix size overflow
drm/amdgpu: Fix size overflow
drm/i915: Fix invalid access to ACPI _DSM objects
drm/amd/display: Add missing mask for DCN3
drm/panel: panel-dsi-cm: disable TE for now
drm/msm/disp/dpu1: program 3d_merge only if block is attached
drm/msm: a6xx: fix version check for the A650 SQE microcode
drm/msm: Fix a5xx/a6xx timestamps
drm/msm: Fix removal of valid error case when checking speed_bin
drm/msm: Set drvdata to NULL when msm_drm_init() fails
drivers: gpu: drm: xen_drm_front_drm_info is declared twice
gpu/xen: Fix a use after free in xen_drm_drv_init
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napi_disable() is subject to an hangup, when the threaded
mode is enabled and the napi is under heavy traffic.
If the relevant napi has been scheduled and the napi_disable()
kicks in before the next napi_threaded_wait() completes - so
that the latter quits due to the napi_disable_pending() condition,
the existing code leaves the NAPI_STATE_SCHED bit set and the
napi_disable() loop waiting for such bit will hang.
This patch addresses the issue by dropping the NAPI_STATE_DISABLE
bit test in napi_thread_wait(). The later napi_threaded_poll()
iteration will take care of clearing the NAPI_STATE_SCHED.
This also addresses a related problem reported by Jakub:
before this patch a napi_disable()/napi_enable() pair killed
the napi thread, effectively disabling the threaded mode.
On the patched kernel napi_disable() simply stops scheduling
the relevant thread.
v1 -> v2:
- let the main napi_thread_poll() loop clear the SCHED bit
Reported-by: Jakub Kicinski <kuba@kernel.org>
Fixes: 29863d41bb6e ("net: implement threaded-able napi poll loop support")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/883923fa22745a9589e8610962b7dc59df09fb1f.1617981844.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Some trivial spelling mistakes which caught my eye during the
review of the code.
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Link: https://lore.kernel.org/r/20210409074223.32480-1-salil.mehta@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ethernet frame length is calculated incorrectly. Depending on
the value of RX_HEAD_PADDING, this may result in ethernet frames
that are too short (cut off at the end), or too long (garbage added
to the end).
Fix by calculating the ethernet frame length correctly. For added
clarity, use the ETH_FCS_LEN constant in the calculation.
Many thanks to Heiner Kallweit for suggesting this solution.
Suggested-by: Heiner Kallweit <hkallweit1@gmail.com>
Fixes: 3e21a10fdea3 ("lan743x: trim all 4 bytes of the FCS; not just 2")
Link: https://lore.kernel.org/lkml/20210408172353.21143-1-TheSven73@gmail.com/
Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com>
Reviewed-by: George McCollister <george.mccollister@gmail.com>
Tested-by: George McCollister <george.mccollister@gmail.com>
Link: https://lore.kernel.org/r/20210409003904.8957-1-TheSven73@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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[<vendor>,]nr-gpios property is used by some GPIO drivers[0] to indicate
the number of GPIOs present on a system, not define a GPIO. nr-gpios is
not configured by #gpio-cells and can't be parsed along with other
"*-gpios" properties.
nr-gpios without the "<vendor>," prefix is not allowed by the DT
spec[1], so only add exception for the ",nr-gpios" suffix and let the
error message continue being printed for non-compliant implementations.
[0] nr-gpios is referenced in Documentation/devicetree/bindings/gpio:
- gpio-adnp.txt
- gpio-xgene-sb.txt
- gpio-xlp.txt
- snps,dw-apb-gpio.yaml
[1] Link: https://github.com/devicetree-org/dt-schema/blob/cb53a16a1eb3e2169ce170c071e47940845ec26e/schemas/gpio/gpio-consumer.yaml#L20
Fixes errors such as:
OF: /palmbus@300000/gpio@600: could not find phandle
Fixes: 7f00be96f125 ("of: property: Add device link support for interrupt-parent, dmas and -gpio(s)")
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Cc: stable@vger.kernel.org # v5.5+
Link: https://lore.kernel.org/r/20210405222540.18145-1-ilya.lipnitskiy@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
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Changeset 1ca9d1b1342d ("dt-bindings:iio:adc:motorola,cpcap-adc yaml conversion")
renamed: Documentation/devicetree/bindings/iio/adc/cpcap-adc.txt
to: Documentation/devicetree/bindings/iio/adc/motorola,cpcap-adc.yaml.
Update its cross-reference accordingly.
Fixes: 1ca9d1b1342d ("dt-bindings:iio:adc:motorola,cpcap-adc yaml conversion")
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/3e205e5fa701e4bc15d39d6ac1f57717df2bb4c6.1617972339.git.mchehab+huawei@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
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The iio-bindings.txt was converted into two files and merged
at the dt-schema git tree at:
https://github.com/devicetree-org/dt-schema
Yet, some documents still refer to the old file. Fix their
references, in order to point to the right URL.
Fixes: dba91f82d580 ("dt-bindings:iio:iio-binding.txt Drop file as content now in dt-schema")
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/4efd81eca266ca0875d3bf9d1672097444146c69.1617972339.git.mchehab+huawei@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
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As documents have been renamed and moved around, their
references will break, but this will be unnoticed, as the
script which checks for it won't handle "../" references.
So, replace them by the full patch.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/68d3a1244119d1f2829c375b0ef554cf348bc89f.1617972339.git.mchehab+huawei@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix invalid access to ACPI _DSM objects (Takashi)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YHAW6NInrybUoat6@intel.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v5.12-rc7:
- Fix use-after-free in xen.
- Reduce fifo threshold on hvs4 to fix a fifo full error.
- Disable TE support for Droid4 and N950.
- Small compiler fixes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e7647dd9-60c3-9dfd-a377-89d717212e13@linux.intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fixes from Paul Moore:
"Three SELinux fixes.
These fix known problems relating to (re)loading SELinux policy or
changing the policy booleans, and pass our test suite without problem"
* tag 'selinux-pr-20210409' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: fix race between old and new sidtab
selinux: fix cond_list corruption when changing booleans
selinux: make nslot handling in avtab more robust
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Pull vdpa/mlx5 fixes from Michael Tsirkin:
"Last minute fixes.
These all look like something we are better off having
than not ..."
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vdpa/mlx5: Fix suspend/resume index restoration
vdpa/mlx5: Fix wrong use of bit numbers
vdpa/mlx5: Retrieve BAR address suitable any function
vdpa/mlx5: Use the correct dma device when registering memory
vdpa/mlx5: should exclude header length and fcs from mtu
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git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc fixes from Bjorn Andersson:
"This fixes an issue with firmware loading on the TI K3 PRU, fixes
compatibility with GNU binutils for the same and resolves link error
due to a 64-bit division in the Qualcomm PIL info.
It also recognizes Mathieu Poirier as co-maintainer of the remoteproc
and rpmsg subsystems"
* tag 'rproc-v5.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
remoteproc: pru: Fix firmware loading crashes on K3 SoCs
remoteproc: pru: Fix loading of GNU Binutils ELF
MAINTAINERS: Add co-maintainer for remoteproc/RPMSG subsystems
remoteproc: qcom: pil_info: avoid 64-bit division
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"A single fix of a 5.12 patch for the rather uncommon problem of
running as a Xen guest with a real time kernel config"
* tag 'for-linus-5.12b-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/evtchn: Change irq_info lock to raw_spinlock_t
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix a build issue introduced by a previous fix in the ACPI processor
driver (Vitaly Kuznetsov)"
* tag 'acpi-5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: processor: Fix build when CONFIG_ACPI_PROCESSOR=m
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When we suspend the VM, the VDPA interface will be reset. When the VM is
resumed again, clear_virtqueues() will clear the available and used
indices resulting in hardware virqtqueue objects becoming out of sync.
We can avoid this function alltogether since qemu will clear them if
required, e.g. when the VM went through a reboot.
Moreover, since the hw available and used indices should always be
identical on query and should be restored to the same value same value
for virtqueues that complete in order, we set the single value provided
by set_vq_state(). In get_vq_state() we return the value of hardware
used index.
Fixes: b35ccebe3ef7 ("vdpa/mlx5: Restore the hardware used index after change map")
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20210408091047.4269-6-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
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VIRTIO_F_VERSION_1 is a bit number. Use BIT_ULL() with mask
conditionals.
Also, in mlx5_vdpa_is_little_endian() use BIT_ULL for consistency with
the rest of the code.
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20210408091047.4269-5-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
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struct mlx5_core_dev has a bar_addr field that contains the correct bar
address for the function regardless of whether it is pci function or sub
function. Use it.
Fixes: 1958fc2f0712 ("net/mlx5: SF, Add auxiliary device driver")
Signed-off-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Link: https://lore.kernel.org/r/20210408091047.4269-4-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
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In cases where the vdpa instance uses a SF (sub function), the DMA
device is the parent device. Use a function to retrieve the correct DMA
device.
Fixes: 1958fc2f0712 ("net/mlx5: SF, Add auxiliary device driver")
Signed-off-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Link: https://lore.kernel.org/r/20210408091047.4269-3-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
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When feature VIRTIO_NET_F_MTU is negotiated on mlx5_vdpa,
22 extra bytes worth of MTU length is shown in guest.
This is because the mlx5_query_port_max_mtu API returns
the "hardware" MTU value, which does not just contain the
Ethernet payload, but includes extra lengths starting
from the Ethernet header up to the FCS altogether.
Fix the MTU so packets won't get dropped silently.
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20210408091047.4269-2-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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drivers/usb/core/hub.c: usb_new_device() contains the following:
/* By default, forbid autosuspend for all devices. It will be
* allowed for hubs during binding.
*/
usb_disable_autosuspend(udev);
So for anything which is not a hub, such as btusb devices, autosuspend is
disabled by default and we must call usb_enable_autosuspend(udev) to
enable it.
This means that the "Fix the autosuspend enable and disable" commit,
which drops the usb_enable_autosuspend() call when the enable_autosuspend
module option is true, is completely wrong, revert it.
This reverts commit 7bd9fb058d77213130e4b3e594115c028b708e7e.
Cc: Hui Wang <hui.wang@canonical.com>
Fixes: 7bd9fb058d77 ("Bluetooth: btusb: Fix the autosuspend enable and disable")
Acked-by: Hui Wang <hui.wang@canonical.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use the port struct device rather than tty class device for debugging.
Note that while USB serial doesn't support serdev yet (due to serdev not
handling hotplugging), serdev ttys do not have a corresponding class
device and would have been logged using a "(NULL device *):" prefix.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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TIOCSSERIAL is a horrid, underspecified, legacy interface which for most
serial devices is only useful for setting the close_delay and
closing_wait parameters.
The xmit_fifo_size parameter could be used to set the hardware transmit
fifo size of a legacy UART when it could not be detected, but the
interface is limited to eight bits and should be left unset when it is
not used.
Similarly, baud_base could be used to set the UART base clock when it
could not be detected, but might as well be left unset when it is not
known (which is the case for CDC).
Fix the cdc-acm TIOCGSERIAL implementation by dropping its custom
interpretation of the unused xmit_fifo_size and baud_base fields, which
overflowed the former with the URB buffer size and set the latter to the
current line speed. Also return the port line number, which is the only
other value used besides the close parameters.
Note that the current line speed can still be retrieved through the
standard termios interfaces.
Fixes: 18c75720e667 ("USB: allow users to run setserial with cdc-acm")
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210408131602.27956-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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TIOCSSERIAL is a horrid, underspecified, legacy interface which for most
serial devices is only useful for setting the close_delay and
closing_wait parameters.
A non-privileged user has only ever been able to set the since long
deprecated ASYNC_SPD flags and trying to change any other *supported*
feature should result in -EPERM being returned. Setting the current
values for any supported features should return success.
Fix the cdc-acm implementation which instead indicated that the
TIOCSSERIAL ioctl was not even implemented when a non-privileged user
set the current values.
Fixes: ba2d8ce9db0a ("cdc-acm: implement TIOCSSERIAL to avoid blocking close(2)")
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210408131602.27956-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit b401f8c4f492cbf74f3f59c9141e5be3071071bb.
The offending commit claimed that trying to set the values reported back
by TIOCGSERIAL as a regular user could result in an -EPERM error when HZ
is 250, but that was never the case.
With HZ=250, the default 0.5 second value of close_delay is converted to
125 jiffies when set and is converted back to 50 centiseconds by
TIOCGSERIAL as expected (not 12 cs as was claimed, even if that was the
case before an earlier fix).
Comparing the internal current and new jiffies values is just fine to
determine if the value is about to change so drop the bogus workaround
(which was also backported to stable).
For completeness: With different default values for these parameters or
with a HZ value not divisible by two, the lack of rounding when setting
the default values in tty_port_init() could result in an -EPERM being
returned, but this is hardly something we need to worry about.
Cc: Anthony Mallet <anthony.mallet@laas.fr>
Cc: stable@vger.kernel.org
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210408131602.27956-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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connector fwnode
Add a displayport altmode fwnode to the usb-connector fwnode,
devices which use this driver support display-port altmode through
the PI3USB30532 USB switch, this enables support for this.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210409134033.105834-4-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add support for altmodes described in the usb-connector fwnode
associated with the Type-C controller by calling the new
typec_port_register_altmodes_from_fwnode() helper for this.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210409134033.105834-3-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This can be used by Type-C controller drivers which use a standard
usb-connector fwnode, with altmodes sub-node, to describe the available
altmodes.
Note there are is no devicetree bindings documentation for the altmodes
node, this is deliberate. ATM the fwnodes used to register the altmodes
are only used internally to pass platform info from a drivers/platform/x86
driver to the type-c subsystem.
When a devicetree user of this functionally comes up and the dt-bindings
have been hashed out the internal use can be adjusted to match the
dt-bindings.
Currently the typec_port_register_altmodes() function expects
an "altmodes" child fwnode on port->dev with this "altmodes" fwnode having
child fwnodes itself with each child containing 2 integer properties:
1. A "svid" property, which sets the id of the altmode, e.g. displayport
altmode has a svid of 0xff01.
2. A "vdo" property, typically used as a bitmask describing the
capabilities of the altmode, the bits in the vdo are specified in the
specification of the altmode.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210409134033.105834-2-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb_role_switch_find_by_fwnode() returns a reference to the role-switch
which must be put by calling usb_role_switch_put().
usb_role_switch_put() calls module_put(sw->dev.parent->driver->owner),
add a matching try_module_get() to usb_role_switch_find_by_fwnode(),
making it behave the same as the other usb_role_switch functions
which return a reference.
This avoids a WARN_ON being hit at kernel/module.c:1158 due to the
module-refcount going below 0.
Fixes: c6919d5e0cd1 ("usb: roles: Add usb_role_switch_find_by_fwnode()")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210409124136.65591-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The clocks are configured by devm_clk_bulk_get_all() in this driver. In
case of any error the clocks freeing will be handled automatically.
There is no need to explicitly free the clocks. Fix the same.
Fixes: 84770f028fab ("usb: dwc3: Add driver for Xilinx platforms")
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Link: https://lore.kernel.org/r/1617904448-74611-3-git-send-email-manish.narani@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kernel-doc run gave a warning for Xilinx DWC3 driver:
drivers/usb/dwc3/dwc3-xilinx.c:27: warning: expecting prototype for
dwc3(). Prototype was for XLNX_USB_PHY_RST_EN() instead
Basically it was due to an extra '*' in line:2. This patch fixes the same.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Link: https://lore.kernel.org/r/1617904448-74611-2-git-send-email-manish.narani@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The old document for usbip protocol is misleading and hard to read:
* Some fields in header are incorrect
* Explanation of some fields are unclear or even wrong
* Padding of header (namely all headers have the same length) is
not explicitly pointed out, which is crucial for stream protocol
like TCP
Major changes:
* Document the correct field as described in the codebase.
* Document the padding in usbip headers. This is crucial for TCP
stream hence these padding should be explicitly point out.
In code these padding are implemented by a union of all headers.
* Fix two FIXME related to usbip unlink and Document the behavior
of unlink in different situation.
* Clarify some field with more accurate explanation, like those
fields associated with URB. Some constraints are extracted from
code.
* Delete specific transfer_flag doc in usbip as it should be
documented by the URB doc in Documentation/driver-api/usb/URB.rst
* Add data captured from wire as example
Version change:
From "PRELIMINARY DRAFT, MAY CONTAIN MISTAKES, 28 Jun 2011"
To "Version 1, 31 Mar 2021"
Co-developed-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Hongren Zheng <i@zenithal.me>
Link: https://lore.kernel.org/r/YGNZHfmAbHO6fyAr@Sun
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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