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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull dmi subsystem updates/fixes from Jean Delvare.
* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
firmware: dmi: handle missing DMI data gracefully
firmware: dmi_scan: Fix handling of empty DMI strings
firmware: dmi_scan: Drop dmi_initialized
firmware: dmi: Optimize dmi_matches
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull integrity fixes from James Morris:
- add James Bottommley as a Trusted Keys maintainer.
- IMA: re-initialize iint->atomic_flags on iint_free(), from Mimi.
* 'fixes-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
ima: re-initialize iint->atomic_flags
maintainers: update trusted keys
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x86/pti
Pull the KVM prerequisites so the IBPB patches apply.
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Pull networking fixes from David Miller:
1) The bnx2x can hang if you give it a GSO packet with a segment size
which is too big for the hardware, detect and drop in this case.
From Daniel Axtens.
2) Fix some overflows and pointer leaks in xtables, from Dmitry Vyukov.
3) Missing RCU locking in igmp, from Eric Dumazet.
4) Fix RX checksum handling on r8152, it can only checksum UDP and TCP
packets. From Hayes Wang.
5) Minor pacing tweak to TCP BBR congestion control, from Neal
Cardwell.
6) Missing RCU annotations in cls_u32, from Paolo Abeni.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (30 commits)
Revert "defer call to mem_cgroup_sk_alloc()"
soreuseport: fix mem leak in reuseport_add_sock()
net: qlge: use memmove instead of skb_copy_to_linear_data
net: qed: use correct strncpy() size
net: cxgb4: avoid memcpy beyond end of source buffer
cls_u32: add missing RCU annotation.
r8152: set rx mode early when linking on
r8152: fix wrong checksum status for received IPv4 packets
nfp: fix TLV offset calculation
net: pxa168_eth: add netconsole support
net: igmp: add a missing rcu locking section
ibmvnic: fix firmware version when no firmware level has been provided by the VIOS server
vmxnet3: remove redundant initialization of pointer 'rq'
lan78xx: remove redundant initialization of pointer 'phydev'
net: jme: remove unused initialization of 'rxdesc'
rtnetlink: remove check for IFLA_IF_NETNSID
rocker: fix possible null pointer dereference in rocker_router_fib_event_work
inet: Avoid unitialized variable warning in inet_unhash()
net: bridge: Fix uninitialized error in br_fdb_sync_static()
openvswitch: Remove padding from packet before L3+ conntrack processing
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull GFS2 fixes from Bob Peterson:
"Andreas Gruenbacher wrote two additional patches that we would like
merged in this time. Both are regressions:
- fix another kernel build dependency problem
- fix a performance regression in glock dumps"
* tag 'gfs2-4.16.fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Glock dump performance regression fix
gfs2: Fix the crc32c dependency
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull second set of SCSI updates from James Bottomley:
"This is a set of three patches that depended on mq and zone changes in
the block tree (now upstream)"
* tag 'scsi-postmerge' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sd: Remove zone write locking
scsi: sd_zbc: Initialize device request queue zoned data
scsi: scsi-mq-debugfs: Show more information
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
"This update to Kselftest consists of fixes, cleanups, and SPDX license
additions"
* tag 'linux-kselftest-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: vm: update .gitignore with missing generated file
selftests/x86: Add <test_name>{,_32,_64} targets
selftests: Fix loss of test output in run_kselftests.sh
selftest: ftrace: Fix to add 256 kprobe events correctly
selftest: ftrace: Fix to pick text symbols for kprobes
selftests: media_tests: Add SPDX license identifier
selftests: kselftest.h: Add SPDX license identifier
selftests: kselftest_install.sh: Add SPDX license identifier
selftests: gen_kselftest_tar.h: Add SPDX license identifier
selftests: media_tests: Fix Makefile 'clean' target warning
tools/testing: Fix trailing semicolon
kselftest: fix OOM in memory compaction test
selftests: seccomp: fix compile error seccomp_bpf
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When pulling the recent pinctrl merge, I was surprised by how a
pinctrl-only pull request ended up rebuilding basically the whole
kernel.
The reason for that ended up being that <linux/device.h> included
<linux/pinctrl/devinfo.h>, so any change to that file ended up causing
pretty much every driver out there to be rebuilt.
The reason for that was because 'struct device' has this in it:
#ifdef CONFIG_PINCTRL
struct dev_pin_info *pins;
#endif
but we already avoid header includes for these kinds of things in that
header file, preferring to just use a forward-declaration of the
structure instead. Exactly to avoid this kind of header dependency.
Since some drivers seem to expect that <linux/pinctrl/devinfo.h> header
to come in automatically, move the include to <linux/pinctrl/pinctrl.h>
instead. It might be better to just make the includes more targeted,
but I'm not going to review every driver.
It would definitely be good to have a tool for finding and minimizing
header dependencies automatically - or at least help with them. Right
now we almost certainly end up having way too many of these things, and
it's hard to test every single configuration.
FWIW, you can get a sense of the "hotness" of a header file with something
like this after doing a full build:
find . -name '.*.o.cmd' -print0 |
xargs -0 tail --lines=+2 |
grep -v 'wildcard ' |
tr ' \\' '\n' |
sort | uniq -c | sort -n | less -S
which isn't exact (there are other things in those '*.o.cmd' than just
the dependencies, and the "--lines=+2" only removes the header), but
might a useful approximation.
With this patch, <linux/pinctrl/devinfo.h> drops to "only" having 833
users in the current x86-64 allmodconfig. In contrast, <linux/device.h>
has 14857 build files including it directly or indirectly.
Of course, the headers that absolutely _everybody_ includes (things like
<linux/types.h> etc) get a score of 23000+.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Currently, when booting a kernel with DMI support on a platform that has
no DMI tables, the following output is emitted into the kernel log:
[ 0.128818] DMI not present or invalid.
...
[ 1.306659] dmi: Firmware registration failed.
...
[ 2.908681] dmi-sysfs: dmi entry is absent.
The first one is a pr_info(), but the subsequent ones are pr_err()s that
complain about a condition that is not really an error to begin with.
So let's clean this up, and give up silently if dma_available is not set.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Martin Hundebøll <mnhu@prevas.dk>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
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The handling of empty DMI strings looks quite broken to me:
* Strings from 1 to 7 spaces are not considered empty.
* True empty DMI strings (string index set to 0) are not considered
empty, and result in allocating a 0-char string.
* Strings with invalid index also result in allocating a 0-char
string.
* Strings starting with 8 spaces are all considered empty, even if
non-space characters follow (sounds like a weird thing to do, but
I have actually seen occurrences of this in DMI tables before.)
* Strings which are considered empty are reported as 8 spaces,
instead of being actually empty.
Some of these issues are the result of an off-by-one error in memcmp,
the rest is incorrect by design.
So let's get it square: missing strings and strings made of only
spaces, regardless of their length, should be treated as empty and
no memory should be allocated for them. All other strings are
non-empty and should be allocated.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 79da4721117f ("x86: fix DMI out of memory problems")
Cc: Parag Warudkar <parag.warudkar@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
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I don't think it makes sense to check for a possible bad
initialization order at run time on every system when it is all
decided at build time.
A more efficient way to make sure developers do not introduce new
calls to dmi_check_system() too early in the initialization sequence
is to simply document the expected call order. That way, developers
have a chance to get it right immediately, without having to
test-boot their kernel, wonder why it does not work, and parse the
kernel logs for a warning message. And we get rid of the run-time
performance penalty as a nice side effect.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Ingo Molnar <mingo@kernel.org>
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Function dmi_matches can me made a bit faster:
* The documented purpose of dmi_initialized is to catch too early
calls to dmi_check_system(). I'm not fully convinced it justifies
slowing down the initialization of all systems out there, but at
least the check should not have been moved from dmi_check_system()
to dmi_matches(). dmi_matches() is being called for every entry of
the table passed to dmi_check_system(), causing the same redundant
check to be performed again and again. So move it back to
dmi_check_system(), reverting this specific portion of commit
d7b1956fed33 ("DMI: Introduce dmi_first_match to make the interface
more flexible").
* Don't check for the exact_match flag again when we already know its
value.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: d7b1956fed33 ("DMI: Introduce dmi_first_match to make the interface more flexible")
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Jeff Garzik <jgarzik@redhat.com>
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Since w83697hf_wdt/w83697ug_wdt watchdogs drivers were removed
in commit 7285fae9345e ("watchdog: Remove drivers for W83697HF and W83697UG")
There are no need to keep their documentation
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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The ixp2000 watchdog driver was removed in commit 065e8238302b ("watchdog: remove ixp2000 driver")
No need to keep its documentation, so remove it.
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Since at32ap700x_wdt is gone, no need to keep its documentation
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Pointer nd_mapping is being initialized to a value that is never read,
instead it is being updated to a new value in all the cases where it
is being read afterwards, hence the initialization is redundant and
can be removed.
Cleans up clang warning:
drivers/nvdimm/namespace_devs.c:2411:21: warning: Value stored to
'nd_mapping' during its initialization is never rea
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
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Eric Leblond says:
====================
Here is an updated v8 version:
- add if_link.h in uapi and remove the definition
- fix a commit message
- remove uapi from a include
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Use bpf_set_link_xdp_fd instead of set_link_xdp_fd to remove some
code duplication and benefit of netlink ext ack errors message.
Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Signed-off-by: Eric Leblond <eric@regit.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Parse netlink ext attribute to get the error message returned by
the card. Code is partially take from libnl.
We add netlink.h to the uapi include of tools. And we need to
avoid include of userspace netlink header to have a successful
build of sample so nlattr.h has a define to avoid
the inclusion. Using a direct define could have been an issue
as NLMSGERR_ATTR_MAX can change in the future.
We also define SOL_NETLINK if not defined to avoid to have to
copy socket.h for a fixed value.
Signed-off-by: Eric Leblond <eric@regit.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Most of the code is taken from set_link_xdp_fd() in bpf_load.c and
slightly modified to be library compliant.
Signed-off-by: Eric Leblond <eric@regit.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The headers are necessary for libbpf compilation on system with older
version of the headers.
Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This patch effectively reverts commit 9f1c2674b328 ("net: memcontrol:
defer call to mem_cgroup_sk_alloc()").
Moving mem_cgroup_sk_alloc() to the inet_csk_accept() completely breaks
memcg socket memory accounting, as packets received before memcg
pointer initialization are not accounted and are causing refcounting
underflow on socket release.
Actually the free-after-use problem was fixed by
commit c0576e397508 ("net: call cgroup_sk_alloc() earlier in
sk_clone_lock()") for the cgroup pointer.
So, let's revert it and call mem_cgroup_sk_alloc() just before
cgroup_sk_alloc(). This is safe, as we hold a reference to the socket
we're cloning, and it holds a reference to the memcg.
Also, let's drop BUG_ON(mem_cgroup_is_root()) check from
mem_cgroup_sk_alloc(). I see no reasons why bumping the root
memcg counter is a good reason to panic, and there are no realistic
ways to hit it.
Signed-off-by: Roman Gushchin <guro@fb.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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1. move copy_to_user out of rcu section to fix the following issue:
./include/linux/rcupdate.h:302 Illegal context switch in RCU read-side critical section!
stack backtrace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592
rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline]
___might_sleep+0x385/0x470 kernel/sched/core.c:6079
__might_sleep+0x95/0x190 kernel/sched/core.c:6067
__might_fault+0xab/0x1d0 mm/memory.c:4532
_copy_to_user+0x2c/0xc0 lib/usercopy.c:25
copy_to_user include/linux/uaccess.h:155 [inline]
bpf_prog_array_copy_to_user+0x217/0x4d0 kernel/bpf/core.c:1587
bpf_prog_array_copy_info+0x17b/0x1c0 kernel/bpf/core.c:1685
perf_event_query_prog_array+0x196/0x280 kernel/trace/bpf_trace.c:877
_perf_ioctl kernel/events/core.c:4737 [inline]
perf_ioctl+0x3e1/0x1480 kernel/events/core.c:4757
2. move *prog under rcu, since it's not ok to dereference it afterwards
3. in a rare case of prog array being swapped between bpf_prog_array_length()
and bpf_prog_array_copy_to_user() calls make sure to copy zeros to user space,
so the user doesn't walk over uninited prog_ids while kernel reported
uattr->query.prog_cnt > 0
Reported-by: syzbot+7dbcd2d3b85f9b608b23@syzkaller.appspotmail.com
Fixes: 468e2f64d220 ("bpf: introduce BPF_PROG_QUERY command")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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reuseport_add_sock() needs to deal with attaching a socket having
its own sk_reuseport_cb, after a prior
setsockopt(SO_ATTACH_REUSEPORT_?BPF)
Without this fix, not only a WARN_ONCE() was issued, but we were also
leaking memory.
Thanks to sysbot and Eric Biggers for providing us nice C repros.
------------[ cut here ]------------
socket already in reuseport group
WARNING: CPU: 0 PID: 3496 at net/core/sock_reuseport.c:119
reuseport_add_sock+0x742/0x9b0 net/core/sock_reuseport.c:117
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 3496 Comm: syzkaller869503 Not tainted 4.15.0-rc6+ #245
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
panic+0x1e4/0x41c kernel/panic.c:183
__warn+0x1dc/0x200 kernel/panic.c:547
report_bug+0x211/0x2d0 lib/bug.c:184
fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178
fixup_bug arch/x86/kernel/traps.c:247 [inline]
do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079
Fixes: ef456144da8e ("soreuseport: define reuseport groups")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot+c0ea2226f77a42936bf7@syzkaller.appspotmail.com
Acked-by: Craig Gallek <kraig@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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gcc-8 points out that the skb_copy_to_linear_data() argument points to
the skb itself, which makes it run into a problem with overlapping
memcpy arguments:
In file included from include/linux/ip.h:20,
from drivers/net/ethernet/qlogic/qlge/qlge_main.c:26:
drivers/net/ethernet/qlogic/qlge/qlge_main.c: In function 'ql_realign_skb':
include/linux/skbuff.h:3378:2: error: 'memcpy' source argument is the same as destination [-Werror=restrict]
memcpy(skb->data, from, len);
It's unclear to me what the best solution is, maybe it ought to use a
different helper that adjusts the skb data in a safe way. Simply using
memmove() here seems like the easiest workaround.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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passing the strlen() of the source string as the destination
length is pointless, and gcc-8 now warns about it:
drivers/net/ethernet/qlogic/qed/qed_debug.c: In function 'qed_grc_dump':
include/linux/string.h:253: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
This changes qed_grc_dump_big_ram() to instead uses the length of
the destination buffer, and use strscpy() to guarantee nul-termination.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Building with link-time-optimizations revealed that the cxgb4 driver does
a fixed-size memcpy() from a variable-length constant string into the
network interface name:
In function 'memcpy',
inlined from 'cfg_queues_uld.constprop' at drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:335:2,
inlined from 'cxgb4_register_uld.constprop' at drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c:719:9:
include/linux/string.h:350:3: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter
__read_overflow2();
^
I can see two equally workable solutions: either we use a strncpy() instead
of the memcpy() to stop at the end of the input, or we make the source buffer
fixed length as well. This implements the latter.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In a couple of points of the control path, n->ht_down is currently
accessed without the required RCU annotation. The accesses are
safe, but sparse complaints. Since we already held the
rtnl lock, let use rtnl_dereference().
Fixes: a1b7c5fd7fe9 ("net: sched: add cls_u32 offload hooks for netdevs")
Fixes: de5df63228fc ("net: sched: cls_u32 changes to knode must appear atomic to readers")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Hayes Wang says:
====================
r8152: fix rx issues
The two patched are used to fix rx issues.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set rx mode before calling netif_wake_queue() when linking on to avoid
the device missing the receiving packets.
The transmission may start after calling netif_wake_queue(), and the
packets of resopnse may reach before calling rtl8152_set_rx_mode()
which let the device could receive packets. Then, the packets of
response would be missed.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The device could only check the checksum of TCP and UDP packets. Therefore,
for the IPv4 packets excluding TCP and UDP, the check of checksum is necessary,
even though the IP checksum is correct.
Take ICMP for example, The IP checksum may be correct, but the ICMP checksum
may be wrong.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The data pointer in the config space TLV parser already includes
NFP_NET_CFG_TLV_BASE, it should not be added again. Incorrect
offset values were only used in printed user output, rendering
the bug merely cosmetic.
Fixes: 73a0329b057e ("nfp: add TLV capabilities to the BAR")
Signed-off-by: Edwin Peer <edwin.peer@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Stefan Richter
- make JMicron JMB38x controllers work with IOMMU-equipped systems
- IP-over-1394: allow user-configured MTU of up to 4096 bytes
* tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire-ohci: work around oversized DMA reads on JMicron controllers
firewire: net: max MTU off by one
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The declaration for swsusp_arch_resume marks it as 'asmlinkage', but the
definition in x86-32 does not, and it fails to include the header with the
declaration. This leads to a warning when building with
link-time-optimizations:
kernel/power/power.h:108:23: error: type of 'swsusp_arch_resume' does not match original declaration [-Werror=lto-type-mismatch]
extern asmlinkage int swsusp_arch_resume(void);
^
arch/x86/power/hibernate_32.c:148:0: note: 'swsusp_arch_resume' was previously declared here
int swsusp_arch_resume(void)
This moves the declaration into a globally visible header file and fixes up
both x86 definitions to match it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Len Brown <len.brown@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Nicolas Pitre <nico@linaro.org>
Cc: linux-pm@vger.kernel.org
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Link: https://lkml.kernel.org/r/20180202145634.200291-2-arnd@arndb.de
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In some configurations, 'partial' does not get initialized, as shown by
this gcc-8 warning:
arch/x86/kernel/dumpstack.c: In function 'show_trace_log_lvl':
arch/x86/kernel/dumpstack.c:156:4: error: 'partial' may be used uninitialized in this function [-Werror=maybe-uninitialized]
show_regs_if_on_stack(&stack_info, regs, partial);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This initializes it to false, to get the previous behavior in this case.
Fixes: a9cdbe72c4e8 ("x86/dumpstack: Fix partial register dumps")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Borislav Petkov <bpetkov@suse.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: https://lkml.kernel.org/r/20180202145634.200291-1-arnd@arndb.de
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v4.16 kernel cycle.
Like with GPIO it is actually a bit calm this time.
Core changes:
- After lengthy discussions and partly due to my ignorance, we have
merged a patch making pinctrl_force_default() and
pinctrl_force_sleep() reprogram the states into the hardware of any
hogged pins, even if they are already in the desired state.
This only apply to hogged pins since groups of pins owned by
drivers need to be managed by each driver, lest they could not do
things like runtime PM and put pins to sleeping state even if the
system as a whole is not in sleep.
New drivers:
- New driver for the Microsemi Ocelot SoC. This is used in ethernet
switches.
- The X-Powers AXP209 GPIO driver was extended to also deal with pin
control and moved over from the GPIO subsystem. This circuit is a
mixed-mode integrated circuit which is part of AllWinner designs.
- New subdriver for the Qualcomm MSM8998 SoC, core of a high end
mobile devices (phones) chipset.
- New subdriver for the ST Microelectronics STM32MP157 MPU and
STM32F769 MCU from the STM32 family.
- New subdriver for the MediaTek MT7622 SoC. This is used for
routers, repeater, gateways and such network infrastructure.
- New subdriver for the NXP (former Freescale) i.MX 6ULL. This SoC
has multimedia features and target "smart devices", I guess in-car
entertainment, in-flight entertainment, industrial control panels
etc.
General improvements:
- Incremental improvements on the SH-PFC subdrivers for things like
the CAN bus.
- Enable the glitch filter on Baytrail GPIOs used for interrupts.
- Proper handling of pins to GPIO ranges on the Semtec SX150X
- An IRQ setup ordering fix on MCP23S08.
- A good set of janitorial coding style fixes"
* tag 'pinctrl-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (102 commits)
pinctrl: mcp23s08: fix irq setup order
pinctrl: Forward declare struct device
pinctrl: sunxi: Use of_clk_get_parent_count() instead of open coding
pinctrl: stm32: add STM32F769 MCU support
pinctrl: sx150x: Add a static gpio/pinctrl pin range mapping
pinctrl: sx150x: Register pinctrl before adding the gpiochip
pinctrl: sx150x: Unregister the pinctrl on release
pinctrl: ingenic: Remove redundant dev_err call in ingenic_pinctrl_probe()
pinctrl: sprd: Use seq_putc() in sprd_pinconf_group_dbg_show()
pinctrl: pinmux: Use seq_putc() in pinmux_pins_show()
pinctrl: abx500: Use seq_putc() in abx500_gpio_dbg_show()
pinctrl: mediatek: mt7622: align error handling of mtk_hw_get_value call
pinctrl: mediatek: mt7622: fix potential uninitialized value being returned
pinctrl: uniphier: refactor drive strength get/set functions
pinctrl: imx7ulp: constify struct imx_cfg_params_decode
pinctrl: imx: constify struct imx_pinctrl_soc_info
pinctrl: imx7d: simplify imx7d_pinctrl_probe
pinctrl: imx: use struct imx_pinctrl_soc_info as a const
pinctrl: sunxi-pinctrl: fix pin funtion can not be match correctly.
pinctrl: qcom: Add msm8998 pinctrl driver
...
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Not much this cycle. I've pushed the at32ap700x removal late but it is
unlikely to cause any issues.
Summary:
Subsystem:
- Move ABI documentation to Documentation/ABI
New driver:
- NXP i.MX53 SRTC
- Chrome OS EC RTC
Drivers:
- Remove at32ap700x
- Many fixes in various error paths"
* tag 'rtc-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
rtc: remove rtc-at32ap700x
Documentation: rtc: move iotcl interface documentation to ABI
Documentation: rtc: add sysfs file permissions
Documentation: rtc: move sysfs documentation to ABI
rtc: mxc_v2: remove __exit annotation
rtc: mxc_v2: Remove unnecessary platform_get_resource() error check
rtc: add mxc driver for i.MX53 SRTC
dt-bindings: rtc: add bindings for i.MX53 SRTC
rtc: r7301: Fix a possible sleep-in-atomic bug in rtc7301_set_time
rtc: r7301: Fix a possible sleep-in-atomic bug in rtc7301_read_time
rtc: omap: fix unbalanced clk_prepare_enable/clk_disable_unprepare
rtc: ac100: Fix multiple race conditions
rtc: sun6i: ensure rtc is kfree'd on error
rtc: cros-ec: add cros-ec-rtc driver.
mfd: cros_ec: Introduce RTC commands and events definitions.
rtc: stm32: Fix copyright
rtc: Remove unused RTC_DEVICE_NAME_SIZE
rtc: r9701: Remove r9701_remove function
rtc: brcmstb-waketimer: fix error handling in brcmstb_waketmr_probe()
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Fixes: 117cc7a908c83 ("x86/retpoline: Fill return stack buffer on vmexit")
Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://lkml.kernel.org/r/20180202191220.blvgkgutojecxr3b@starbug-vm.ie.oracle.com
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I'm seeing build failures from the two newly introduced arrays that
are marked 'const' and '__initdata', which are mutually exclusive:
arch/x86/kernel/cpu/common.c:882:43: error: 'cpu_no_speculation' causes a section type conflict with 'e820_table_firmware_init'
arch/x86/kernel/cpu/common.c:895:43: error: 'cpu_no_meltdown' causes a section type conflict with 'e820_table_firmware_init'
The correct annotation is __initconst.
Fixes: fec9434a12f3 ("x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Thomas Garnier <thgarnie@google.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://lkml.kernel.org/r/20180202213959.611210-1-arnd@arndb.de
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A NULL pointer reference kernel bug was observed when
acpi_nfit_add_dimm() called in acpi_nfit_register_dimms() failed. This
error path does not set nfit_mem->nvdimm, but the 2nd
list_for_each_entry() loop in the function assumes it's always set. Add
a check to nfit_mem->nvdimm.
Cc: <stable@vger.kernel.org>
Fixes: ba9c8dd3c222 ("acpi, nfit: add dimm device notification support")
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha
Pull alpha updates from Matt Turner:
"A few small fixes and clean ups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
alpha: fix crash if pthread_create races with signal delivery
alpha: fix formating of stack content
alpha: fix reboot on Avanti platform
alpha: deprecate pci_get_bus_and_slot()
alpha: Fix mixed up args in EXC macro in futex operations
alpha: osf_sys.c: use timespec64 where appropriate
alpha: osf_sys.c: fix put_tv32 regression
alpha: make thread_saved_pc static
alpha: make XTABS equivalent to TAB3
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Sync tools/arch/x86/include/asm/{cpu,disabled-,required-}features.h with
the changes in:
2961298efe1e ("x86/cpufeatures: Clean up Spectre v2 related CPUID flags")
20ffa1caecca ("x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support")
5d10cbc91d9e ("x86/cpufeatures: Add AMD feature bits for Speculation Control")
fc67dd70adb7 ("x86/cpufeatures: Add Intel feature bits for Speculation Control")
95ca0ee86360 ("x86/cpufeatures: Add CPUID_7_EDX CPUID leaf")
a511e7935378 ("x86/intel_rdt: Enumerate L2 Code and Data Prioritization (CDP) feature")
4fdec2034b75 ("x86/cpufeature: Move processor tracing out of scattered features")
c995efd5a740 ("x86/retpoline: Fill RSB on context switch for affected CPUs")
76b043848fd2 ("x86/retpoline: Add initial retpoline support")
99c6fa2511d8 ("x86/cpufeatures: Add X86_BUG_SPECTRE_V[12]")
de791821c295 ("x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN")
6cff64b86aaa ("x86/mm: Use INVPCID for __native_flush_tlb_single()")
None will entail changes in the tools/perf/, synchronizing to elliminate
these perf build warnings:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/required-features.h' differs from latest version at 'arch/x86/include/asm/required-features.h'
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-dbdjack1k92xar5ccuq4el1h@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To get the tools copy updated with the changes in 34be39305a77
("sched/deadline: Implement "runtime overrun signal" support"), that
cause no effect on the tools, will be used when we start copying the
sched_attr struct argument to the sched_get/setattr syscalls.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Juri Lelli <juri.lelli@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-8rododhs87x8hv9k83qcdtne@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The changes in the 3214d01f139b ("KVM: PPC: Book3S: Provide information
about hardware/firmware CVE workarounds") commit right now will not
produce any change in the tools, but that is because we still need to
improve tools/perf/trace/beauty/kvm_ioctl.sh to build per arch string
tables, so that we avoid assigning multiple times to the same command
string entry, i.e. multiple defines, for different arches, have the same
value, causing this:
In file included from trace/beauty/ioctl.c:82:0:
/tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c: In function ‘ioctl__scnprintf_kvm_cmd’:
/tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:76:11: error: initialized field overwritten [-Werror=override-init]
/tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:88:11: note: (near initialization for ‘kvm_ioctl_cmds[165]’)
/tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:90:11: error: initialized field overwritten [-Werror=override-init]
[0xa6] = "PPC_GET_SMMU_INFO",
^~~~~~~~~~~~~~~~~~~
So the onlye effect of updating the tools/ copy of ppc's kvm.h header
is to silence these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h'
At some point we should do what we did for the errno tables and create
per-arch string translation tables for the KVM ioctl commands for the
architectures supporting KVM, such as s/390, PowerPC, x86_64 and ARM.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-jmcf78tqiudgn46zqfw2tgt2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The 35b3fde6203b ("KVM: s390: wire up bpb feature") was noticed by the
perf build process:
Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' differs from latest version at 'arch/s390/include/uapi/asm/kvm.h'
The changes in this cset don't cause or require changes in tools/perf/,
so just update the copy to silence the build warning.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-kif2fdkcaewj8iqw6lwyil8s@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes from this cset:
823dbb6eb08a ("ALSA: pcm: add SNDRV_PCM_FORMAT_{S,U}20")
It doesn't affect how the tools are built, this os done just to silence
this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h'
Right now tools/perf uses this header to generate string tables to
translate ioctl commands in 'perf trace', see
tools/perf/trace/beauty/sndrv_pcm_ioctl.sh, here is an example
of a strace like system wide session, for one second:
# perf trace -a -e ioctl sleep 1
0.000 ( 0.019 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_HWSYNC, arg: 0x107b) = 0
0.081 ( 0.006 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_HWSYNC, arg: 0x107b) = 0
0.092 ( 0.006 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_STATUS_EXT, arg: 0x7f6745ec4ae0) = 0
10.178 ( 0.013 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_HWSYNC, arg: 0x107b) = 0
10.229 ( 0.005 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_HWSYNC, arg: 0x107b) = 0
10.238 ( 0.013 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_STATUS_EXT, arg: 0x7f6745ec4ae0) = 0
10.368 ( 0.009 ms): threaded-ml/26440 ioctl(fd: 141<socket:[111353]>, cmd: TIOCLINUX, arg: 0x7f8f70d2e1a4) = 0
10.495 ( 0.018 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_HWSYNC, arg: 0x107b) = 0
10.526 ( 0.005 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_HWSYNC, arg: 0x107b) = 0
19.695 ( 0.018 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_HWSYNC, arg: 0x107b) = 0
19.757 ( 0.006 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_HWSYNC, arg: 0x107b) = 0
19.767 ( 0.005 ms): alsa-sink-HDMI/4219 ioctl(fd: 47</dev/snd/pcmC0D8p>, cmd: SNDRV_PCM_STATUS_EXT, arg: 0x7f6745ec4ae0) = 0
<BIG SNIP>
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-sfpeesn8w0pyn3fe7vf2xmfl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- Enable support for memory protection keys aka "pkeys" on Power7/8/9
when using the hash table MMU.
- Extend our interrupt soft masking to support masking PMU interrupts
as well as "normal" interrupts, and then use that to implement
local_t for a ~4x speedup vs the current atomics-based
implementation.
- A new driver "ocxl" for "Open Coherent Accelerator Processor
Interface (OpenCAPI)" devices.
- Support for new device tree properties on PowerVM to describe
hotpluggable memory and devices.
- Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 64-bit
VDSO.
- Freescale updates from Scott: fixes for CPM GPIO and an FSL PCI
erratum workaround, plus a minor cleanup patch.
As well as quite a lot of other changes all over the place, and small
fixes and cleanups as always.
Thanks to: Alan Modra, Alastair D'Silva, Alexey Kardashevskiy,
Alistair Popple, Andreas Schwab, Andrew Donnellan, Aneesh Kumar K.V,
Anju T Sudhakar, Anshuman Khandual, Anton Blanchard, Arnd Bergmann,
Balbir Singh, Benjamin Herrenschmidt, Bhaktipriya Shridhar, Bryant G.
Ly, Cédric Le Goater, Christophe Leroy, Christophe Lombard, Cyril Bur,
David Gibson, Desnes A. Nunes do Rosario, Dmitry Torokhov, Frederic
Barrat, Geert Uytterhoeven, Guilherme G. Piccoli, Gustavo A. R. Silva,
Gustavo Romero, Ivan Mikhaylov, Joakim Tjernlund, Joe Perches, Josh
Poimboeuf, Juan J. Alvarez, Julia Cartwright, Kamalesh Babulal,
Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Malaterre, Michael
Bringmann, Michael Hanselmann, Michael Neuling, Nathan Fontenot,
Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Philippe Bergheaud,
Ram Pai, Russell Currey, Santosh Sivaraj, Scott Wood, Seth Forshee,
Simon Guo, Stewart Smith, Sukadev Bhattiprolu, Thiago Jung Bauermann,
Vaibhav Jain, Vasyl Gomonovych"
* tag 'powerpc-4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (199 commits)
powerpc/mm/radix: Fix build error when RADIX_MMU=n
macintosh/ams-input: Use true and false for boolean values
macintosh: change some data types from int to bool
powerpc/watchdog: Print the NIP in soft_nmi_interrupt()
powerpc/watchdog: regs can't be null in soft_nmi_interrupt()
powerpc/watchdog: Tweak watchdog printks
powerpc/cell: Remove axonram driver
rtc-opal: Fix handling of firmware error codes, prevent busy loops
powerpc/mpc52xx_gpt: make use of raw_spinlock variants
macintosh/adb: Properly mark continued kernel messages
powerpc/pseries: Fix cpu hotplug crash with memoryless nodes
powerpc/numa: Ensure nodes initialized for hotplug
powerpc/numa: Use ibm,max-associativity-domains to discover possible nodes
powerpc/kernel: Block interrupts when updating TIDR
powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn
powerpc/mm/nohash: do not flush the entire mm when range is a single page
powerpc/pseries: Add Initialization of VF Bars
powerpc/pseries/pci: Associate PEs to VFs in configure SR-IOV
powerpc/eeh: Add EEH notify resume sysfs
powerpc/eeh: Add EEH operations to notify resume
...
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