The code for reading ancillary data from a received buffer is assuming
the buffer is linear. To make this assumption true we have to linearize
the buffer before message data is read.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
eth_type_trans() assumes initial value for skb->pkt_type
is PACKET_HOST.
This is indeed the value right after a fresh skb allocation.
However, it is possible that GRO merged a packet with a different
value (like PACKET_OTHERHOST in case macvlan is used), so
we need to make sure napi->skb will have pkt_type set back to
PACKET_HOST.
Otherwise, valid packets might be dropped by the stack because
their pkt_type is not PACKET_HOST.
napi_reuse_skb() was added in commit 96e93eab20 ("gro: Add
internal interfaces for VLAN"), but this bug always has
been there.
Fixes: 96e93eab20 ("gro: Add internal interfaces for VLAN")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lucas Bates says:
====================
Prevent uncaught exceptions in tdc
This patch series addresses two potential bugs in tdc that can
cause exceptions to be raised in certain circumstances. These
exceptions are generally not handled, so instead we will prevent
them from being raised.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Add some defensive coding in case one of the subprocesses created by tdc
returns nothing. If no object is returned from exec_cmd, then tdc will
halt with an unhandled exception.
Signed-off-by: Brenda J. Butler <bjb@mojatatu.com>
Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prevent exceptions from being raised while decoding output
from an executed command. There is no impact on tdc's
execution and the verify command phase would fail the pattern
match.
Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The various types of tunnels running over IPv4 can ask to set the DF
bit to do PMTU discovery. However, PMTU discovery is subject to the
threshold set by the net.ipv4.route.min_pmtu sysctl, and is also
disabled on routes with "mtu lock". In those cases, we shouldn't set
the DF bit.
This patch makes setting the DF bit conditional on the route's MTU
locking state.
This issue seems to be older than git history.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We would like the existing community to be kept in the loop for any new
developments on CAKE; and I certainly plan to keep maintaining it. Reflect
this in MAINTAINERS.
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Syzbot reported a use-after-free of the global vlan context on port vlan
destruction. When I added per-port vlan stats I missed the fact that the
global vlan context can be freed before the per-port vlan rcu callback.
There're a few different ways to deal with this, I've chosen to add a
new private flag that is set only when per-port stats are allocated so
we can directly check it on destruction without dereferencing the global
context at all. The new field in net_bridge_vlan uses a hole.
v2: cosmetic change, move the check to br_process_vlan_info where the
other checks are done
v3: add change log in the patch, add private (in-kernel only) flags in a
hole in net_bridge_vlan struct and use that instead of mixing
user-space flags with private flags
Fixes: 9163a0fc1f ("net: bridge: add support for per-port vlan stats")
Reported-by: syzbot+04681da557a0e49a52e5@syzkaller.appspotmail.com
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
splice(2) fails with -EINVAL when called reading on a socket with no splice_read
set in its proto_ops (such as vsock sockets). Switch this to fallbacks to a
generic_file_splice_read instead.
Signed-off-by: Slavomir Kaslev <kaslevs@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Up until commit 7e5fbd1e07 ("net: mdio-gpio: Convert to use gpiod
functions where possible"), the _cansleep variants of the gpio_ API was
used. After that commit and the change to gpiod_ API, the _cansleep()
was dropped. This then results in WARN_ON() when used with GPIO
devices which do sleep. Add back the _cansleep() to avoid this.
Fixes: 7e5fbd1e07 ("net: mdio-gpio: Convert to use gpiod functions where possible")
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Using xas_load() with a PMD-sized xa_state would work if either a
PMD-sized entry was present or a PTE sized entry was present in the
first 64 entries (of the 512 PTEs in a PMD on x86). If there was no
PTE in the first 64 entries, grab_mapping_entry() would believe there
were no entries present, allocate a PMD-sized entry and overwrite the
PTE in the page cache.
Use xas_find_conflict() instead which turns out to simplify
both get_unlocked_entry() and grab_mapping_entry(). Also remove a
WARN_ON_ONCE from grab_mapping_entry() as it will have already triggered
in get_unlocked_entry().
Fixes: cfc93c6c6c ("dax: Convert dax_insert_pfn_mkwrite to XArray")
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Device DAX PMD pages do not set the PageHead bit for compound pages.
Fix for now by retrieving the PMD bit from the entry, but eventually we
will be passed the page size by the caller.
Reported-by: Dan Williams <dan.j.williams@intel.com>
Fixes: 9f32d22130 ("dax: Convert dax_lock_mapping_entry to XArray")
Signed-off-by: Matthew Wilcox <willy@infradead.org>
- Explicitly pad short ELP packets with zeros, by Sven Eckelmann
- Fix packet size calculation when merging fragments,
by Sven Eckelmann
-----BEGIN PGP SIGNATURE-----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=nlBu
-----END PGP SIGNATURE-----
Merge tag 'batadv-net-for-davem-20181114' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
Here are two batman-adv bugfixes:
- Explicitly pad short ELP packets with zeros, by Sven Eckelmann
- Fix packet size calculation when merging fragments,
by Sven Eckelmann
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit re-enables support for slow GPIO pins. It was initially
introduced by commit 2d6c9091ab ("net: mdio-gpio: support access that
may sleep") and got lost by commit 7e5fbd1e07 ("net: mdio-gpio:
Convert to use gpiod functions where possible").
Also add a warning about slow GPIO pins like it is done in i2c-gpio.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
tcf_idr_check_alloc() can return a negative value, on allocation failures
(-ENOMEM) or IDR exhaustion (-ENOSPC): don't leak keys_ex in these cases.
Fixes: 0190c1d452 ("net: sched: atomically check-allocate action")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Return 'err' in the error handling path instead of 0.
Return explicitly 0 in the normal path, instead of 'err', which is known
to be 0 at this point.
Fixes: fe1a56420c ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
These is no need to hold dst before calling rt6_remove_exception_rt().
The call to dst_hold_safe() in ip6_link_failure() was for ip6_del_rt(),
which has been removed in Commit 93531c6743 ("net/ipv6: separate
handling of FIB entries from dst based routes"). Otherwise, it will
cause a dst leak.
This patch is to simply remove the dst_hold_safe() call before calling
rt6_remove_exception_rt() and also do the same in ip6_del_cached_rt().
It's safe, because the removal of the exception that holds its dst's
refcnt is protected by rt6_exception_lock.
Fixes: 93531c6743 ("net/ipv6: separate handling of FIB entries from dst based routes")
Fixes: 23fb93a4d3 ("net/ipv6: Cleanup exception and cache route handling")
Reported-by: Li Shuang <shuali@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Using 2.5G speed relies on the SerDes lanes being configured
accordingly. The lanes have to be reconfigured to switch between
1G and 2.5G, and for now only the bootloader does this configuration.
In the case we add a Comphy driver to handle switching the lanes
dynamically, it's better for now to stick with supporting only 1G and
add advertisement for 2.5G once we really are capable of handling both
speeds without problem.
Since the interface mode is initialy taken from the DT, we want to make
sure that adding comphy support won't break boards that don't update
their dtb.
Fixes: da58a931f2 ("net: mvneta: Add support for 2500Mbps SGMII")
Reported-by: Andrew Lunn <andrew@lunn.ch>
Reported-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We would like to consolidate Intel pure GPIO drivers, including PMICs and
some old x86 platforms, in one tree which is maintained by Intel.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit 3edfb7bd76 ("gpiolib: Show correct direction from the
beginning") fixed an existing issue but broke libgpiod tests by
changing the default direction of dummy lines to output.
We don't break user-space so make gpio-mockup behave as before.
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As pointed out by Gregor, spitz keyboard matrix is broken, with or
without CONFIG_PINCTRL set, quoting :
"The gpio matrix keypard on the Zaurus C3x00 (see spitz.c) does not work
properly. Noticeable are that rshift+c does nothing where as lshift+c
creates C. Opposite it is for rshift+a vs lshift+a, here only rshift
works. This affects a few other combinations using the rshift or lshift
buttons."
As a matter of fact, as for platform_data based builds CONFIG_PINCTRL=n
is required for now (as opposed for devicetree builds where it should be
set), this means gpio driver should change the direction, which is what
was attempted by commit c4e5ffb6f2 ("gpio: pxa: fix legacy non pinctrl
aware builds").
Unfortunately, the input case was inverted, and the direction change was
never done. This wasn't seen up until now because the initial platform
setup (MFP) was setting this direction. Yet in Gregory's case, the
matrix-keypad driver changes back and forth the direction dynamically,
and this is why he's the first to report it.
Fixes: c4e5ffb6f2 ("gpio: pxa: fix legacy non pinctrl aware builds")
Tested-by: Greg <greguu@null.net>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
For the device-dax case, it is possible that the inode can go away
underneath us. The rcu_read_lock() was there to prevent it from
being freed, and not (as I thought) to protect the tree. Bring back
the rcu_read_lock() protection. Also add a little kernel-doc; while
this function is not exported to modules, it is used from outside dax.c
Reported-by: Dan Williams <dan.j.williams@intel.com>
Fixes: 9f32d22130 ("dax: Convert dax_lock_mapping_entry to XArray")
Signed-off-by: Matthew Wilcox <willy@infradead.org>
I wrote the semantics in the commit message, but didn't document it in
the source code. Use a BUG_ON instead (if any code does do this, it's
really buggy; we can't recover and it's worth taking the machine down).
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Skipping some of the revalidation after we sleep can lead to returning
a mapping which has already been freed. Just drop this optimisation.
Reported-by: Dan Williams <dan.j.williams@intel.com>
Fixes: 9f32d22130 ("dax: Convert dax_lock_mapping_entry to XArray")
Signed-off-by: Matthew Wilcox <willy@infradead.org>
The test-suite caught these two mistakes when compiled for 32-bit.
I had only been running the test-suite in 64-bit mode.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
The explicit '64' should have been BITS_PER_LONG, but while looking at
this code I realised I meant to use __ffs(), not ilog2().
Signed-off-by: Matthew Wilcox <willy@infradead.org>
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAlvukbUACgkQnJ2qBz9k
QNkJnggAriAyO72fH7nfh2AzvwnkqLi9uE4JQk+ZxQFW9W6a32Y+qIRBsaiau++w
/lOVSGLCCVewzAa4b/lYPdyOS/yG4w6UuEsg5HQPux4JsOccalYudB5ONdeZGd/P
5FPxcsixDQQHP9mhz1gIn2wV7bbytH2DduIHxuKbJfX//xnO3jS/gnJq82rnxb4R
IzqewVjbFiqYQKtyuzIqKqI3yOVqESJhyQ96j6chj5YKNUkMuwU9akhQGR4Zcqen
/cxh+mK+ZzCybgu2Sfgx3noZb5RFYePpcSSpDG5OKJc04IY4m76fyHIi2flBE9AX
HCN60y+VyKFOiNxzsSLXgsE9aj40OA==
=UcJO
-----END PGP SIGNATURE-----
Merge tag 'fsnotify_for_v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify fix from Jan Kara:
"One small fsnotify fix for duplicate events"
* tag 'fsnotify_for_v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: fix handling of events on child sub-directory
Pull bfs2 fixes from Andreas Gruenbacher:
"Fix two bugs leading to leaked buffer head references:
- gfs2: Put bitmap buffers in put_super
- gfs2: Fix iomap buffer head reference counting bug
And one bug leading to significant slow-downs when deleting large
files:
- gfs2: Fix metadata read-ahead during truncate (2)"
* tag 'gfs2-4.20.fixes3' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Fix iomap buffer head reference counting bug
gfs2: Fix metadata read-ahead during truncate (2)
gfs2: Put bitmap buffers in put_super
GFS2 passes the inode buffer head (dibh) from gfs2_iomap_begin to
gfs2_iomap_end in iomap->private. It sets that private pointer in
gfs2_iomap_get. Users of gfs2_iomap_get other than gfs2_iomap_begin
would have to release iomap->private, but this isn't done correctly,
leading to a leak of buffer head references.
To fix this, move the code for setting iomap->private from
gfs2_iomap_get to gfs2_iomap_begin.
Fixes: 64bc06bb32 ("gfs2: iomap buffered write support")
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- Potential memory overwrite in simd
- Kernel info leaks in crypto_user
- NULL dereference and use-after-free in hisilicon"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: user - Zeroize whole structure given to user space
crypto: user - fix leaking uninitialized memory to userspace
crypto: simd - correctly take reqsize of wrapped skcipher into account
crypto: hisilicon - Fix reference after free of memories on error path
crypto: hisilicon - Fix NULL dereference for same dst and src
-----BEGIN PGP SIGNATURE-----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=JYkZ
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2018-11-16' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Live from Vancouver, SoC maintainer talk, this weeks drm fixes pull
for rc3:
omapdrm:
- regression fixes for the reordering bridge stuff that went into rc1
i915:
- incorrect EU count fix
- HPD storm fix
- MST fix
- relocation fix for gen4/5
amdgpu:
- huge page handling fix
- IH ring setup
- XGMI aperture setup
- watermark setup fix
misc:
- docs and MST fix"
* tag 'drm-fixes-2018-11-16' of git://anongit.freedesktop.org/drm/drm: (23 commits)
drm/i915: Account for scale factor when calculating initial phase
drm/i915: Clean up skl_program_scaler()
drm/i915: Move programming plane scaler to its own function.
drm/i915/icl: Drop spurious register read from icl_dbuf_slices_update
drm/i915: fix broadwell EU computation
drm/amdgpu: fix huge page handling on Vega10
drm/amd/pp: Fix truncated clock value when set watermark
drm/amdgpu: fix bug with IH ring setup
drm/meson: venc: dmt mode must use encp
drm/amdgpu: set system aperture to cover whole FB region
drm/i915: Fix hpd handling for pins with two encoders
drm/i915/execlists: Force write serialisation into context image vs execution
drm/i915/icl: Fix power well 2 wrt. DC-off toggling order
drm/i915: Fix NULL deref when re-enabling HPD IRQs on systems with MST
drm/i915: Fix possible race in intel_dp_add_mst_connector()
drm/i915/ringbuffer: Delay after EMIT_INVALIDATE for gen4/gen5
drm/omap: dsi: Fix missing of_platform_depopulate()
drm/omap: Move DISPC runtime PM handling to omapdrm
drm/omap: dsi: Ensure the device is active during probe
drm/omap: hdmi4: Ensure the device is active during bind
...
Two weeks worth of fixes since rc1.
- I broke 16-byte alignment of the stack when we moved PPR into pt_regs.
Despite being required by the ABI this broke almost nothing, we eventually
hit it in code where GCC does arithmetic on the stack pointer assuming the
bottom 4 bits are clear. Fix it by padding the in-kernel pt_regs by 8 bytes.
- A couple of commits fixing minor bugs in the recent SLB rewrite.
- A build fix related to tracepoints in KVM in some configurations.
- Our old "IO workarounds" code written for Cell couldn't coexist in a kernel
that runs on Power9 with the Radix MMU, fix that.
- Remove the NPU DMA ops, these just printed a warning and should never have
been called.
- Suppress an overly chatty message triggered by CPU hotplug in some configs.
- Two small selftest fixes.
Thanks to:
Alistair Popple, Gustavo Romero, Nicholas Piggin, Satheesh Rajendran, Scott Wood.
-----BEGIN PGP SIGNATURE-----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=fEqA
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two weeks worth of fixes since rc1.
- I broke 16-byte alignment of the stack when we moved PPR into
pt_regs. Despite being required by the ABI this broke almost
nothing, we eventually hit it in code where GCC does arithmetic on
the stack pointer assuming the bottom 4 bits are clear. Fix it by
padding the in-kernel pt_regs by 8 bytes.
- A couple of commits fixing minor bugs in the recent SLB rewrite.
- A build fix related to tracepoints in KVM in some configurations.
- Our old "IO workarounds" code written for Cell couldn't coexist in
a kernel that runs on Power9 with the Radix MMU, fix that.
- Remove the NPU DMA ops, these just printed a warning and should
never have been called.
- Suppress an overly chatty message triggered by CPU hotplug in some
configs.
- Two small selftest fixes.
Thanks to: Alistair Popple, Gustavo Romero, Nicholas Piggin, Satheesh
Rajendran, Scott Wood"
* tag 'powerpc-4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
selftests/powerpc: Adjust wild_bctr to build with old binutils
powerpc/64: Fix kernel stack 16-byte alignment
powerpc/numa: Suppress "VPHN is not supported" messages
selftests/powerpc: Fix wild_bctr test to work on ppc64
powerpc/io: Fix the IO workarounds code to work with Radix
powerpc/mm/64s: Fix preempt warning in slb_allocate_kernel()
KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE
powerpc/mm/64s: Only use slbfee on CPUs that support it
powerpc/mm/64s: Use PPC_SLBFEE macro
powerpc/mm/64s: Consolidate SLB assertions
powerpc/powernv/npu: Remove NPU DMA ops
-----BEGIN PGP SIGNATURE-----
iHQEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCW+3F5wAKCRDh3BK/laaZ
PIFHAPi8jN+wXE24tSEx/oJzCVAXP5tw8IxbiyiEdkvBZeyuAP9nkx0GoUtZodWN
c+JEjDJnyYQhM28VoKauDoWn+dxPDw==
=QvAu
-----END PGP SIGNATURE-----
Merge tag 'fuse-fixes-4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
"A couple of fixes, all bound for -stable (i.e. not regressions in this
cycle)"
* tag 'fuse-fixes-4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix use-after-free in fuse_direct_IO()
fuse: fix possibly missed wake-up after abort
fuse: fix leaked notify reply
Driver can report IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ so it's
important to provide valid & complete info about supported bands for
each channel. By default no support for 160 MHz should be assumed unless
firmware reports it for a given channel later.
This fixes info passed to the userspace. Without that change userspace
could try to use invalid channel and fail to start an interface.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
mac80211 may call us with vif == NULL, if the station is not currently
active (e.g., not associated). It is trivially easy to reproduce a crash
by suspending the system when not connected to an AP:
[ 65.533934] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
...
[ 65.574521] pc : ath10k_flush+0x30/0xd0 [ath10k_core]
[ 65.574538] lr : __ieee80211_flush_queues+0x180/0x244 [mac80211]
[ 65.599680] Process kworker/u12:1 (pid: 57, stack limit = 0x(____ptrval____))
[ 65.599682] Call trace:
[ 65.599695] ath10k_flush+0x30/0xd0 [ath10k_core]
[ 65.642064] __ieee80211_flush_queues+0x180/0x244 [mac80211]
[ 65.642079] ieee80211_flush_queues+0x34/0x40 [mac80211]
[ 65.642095] __ieee80211_suspend+0xfc/0x47c [mac80211]
[ 65.658611] ieee80211_suspend+0x30/0x3c [mac80211]
[ 65.658627] wiphy_suspend+0x15c/0x3a8 [cfg80211]
[ 65.672810] dpm_run_callback+0xf0/0x1f0
[ 65.672814] __device_suspend+0x3ac/0x4f8
[ 65.672819] async_suspend+0x34/0xbc
[ 65.684096] async_run_entry_fn+0x54/0x104
[ 65.684099] worker_thread+0x4cc/0x72c
[ 65.684102] kthread+0x134/0x13c
[ 65.684105] ret_from_fork+0x10/0x18
Fixes: 9de4162f09 ("ath10k: add peer flush in ath10k_flush for STATION")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
* New FW debugging infrastructure;
* Some more work on 802.11ax;
* Improve support for multiple RF modules with 22000 devices;
* Remove an unused FW parameter;
* Other debugging improvements;
-----BEGIN PGP SIGNATURE-----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=GS6r
-----END PGP SIGNATURE-----
Merge tag 'iwlwifi-for-kalle-2018-11-15' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
First batch of iwlwifi fixes for 4.20
* New FW debugging infrastructure;
* Some more work on 802.11ax;
* Improve support for multiple RF modules with 22000 devices;
* Remove an unused FW parameter;
* Other debugging improvements;
Add missing semicolon.
Fixes: 291d57f67d ("qed: Fix rdma_info structure allocation")
Cc: Michal Kalderon <michal.kalderon@cavium.com>
Cc: Denis Bolotin <denis.bolotin@cavium.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tariq Toukan says:
====================
mlx4 fixes for 4.20-rc
This patchset includes small fixes for mlx4_core driver.
First patch by Jack zeros a field in a FW communication
command, to match the FW spec.
Please queue it to -stable >= v3.17.
In the second patch I zero-initialize a variable to silence
a compliation warning.
Please queue it to -stable >= v3.19.
Third patch by Aya replaces int fields with unsigned int,
to fix a UBSAN warning.
Please queue it to -stable >= v3.13.
Series generated against net commit:
db8ddde766 Merge branch 'qed-Miscellaneous-bug-fixes'
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
UBSAN: Undefined behavior in
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:626:29
signed integer overflow: 1802201963 + 1802201963 cannot be represented
in type 'int'
The union of res_reserved and res_port_rsvd[MLX4_MAX_PORTS] monitors
granting of reserved resources. The grant operation is calculated and
protected, thus both members of the union cannot be negative. Changed
type of res_reserved and of res_port_rsvd[MLX4_MAX_PORTS] from signed
int to unsigned int, allowing large value.
Fixes: 5a0d0a6161 ("mlx4: Structures and init/teardown for VF resource quotas")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Initialize the uid variable to zero to avoid the compilation warning.
Fixes: 7a89399ffa ("net/mlx4: Add mlx4_bitmap zone allocator")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When re-registering a user mr, the mpt information for the
existing mr when running SRIOV is obtained via the QUERY_MPT
fw command. The returned information includes the mpt's lkey.
This retrieved mpt information is used to move the mpt back
to hardware ownership in the rereg flow (via the SW2HW_MPT
fw command when running SRIOV).
The fw API spec states that for SW2HW_MPT, the lkey field
must be zero. Any ConnectX-3 PF driver which checks for strict spec
adherence will return failure for SW2HW_MPT if the lkey field is not
zero (although the fw in practice ignores this field for SW2HW_MPT).
Thus, in order to conform to the fw API spec, set the lkey field to zero
before invoking SW2HW_MPT when running SRIOV.
Fixes: e630664c83 ("mlx4_core: Add helper functions to support MR re-registration")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Both the Loongson3 & SGI-IP27 platforms set max_low_pfn to the last
available PFN describing memory. They both do it in paging_init() which
is later than ideal since max_low_pfn is used before that function is
called. Simplify both platforms to trivially initialize max_low_pfn
using the end address of DRAM, and do it earlier in prom_meminit().
Signed-off-by: Paul Burton <paul.burton@mips.com>
Suggested-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Patchwork: https://patchwork.linux-mips.org/patch/21104/
References: https://patchwork.linux-mips.org/patch/21031/
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: linux-mips@linux-mips.org
- Fix Bugzilla #108712: Fix incorrect EU count report from kernel
- Fix to account for scale factor when calculating initial phase on scaled output
- Avoid too trigger-happy HPD storm detection and fix a race and an OOPS for MST systems.
- Relocation race fix for Gen4/5
- A couple ICL fixes and dependencies for above Fixes:.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181115164709.GA13430@jlahtine-desk.ger.corp.intel.com
[Why]
Many panels support more than 8bpc but some modes are unavailable while
running at greater than 8bpc due to DP/HDMI bandwidth constraints.
Support for more than 8bpc was added recently in the driver but it
defaults to the maximum supported bpc - locking out these modes.
This should be a user configurable option such that the user can select
what bpc configuration they would like.
[How]
This patch adds support for getting and setting the amdgpu driver
specific "max bpc" property on the connector.
It also adds support for limiting the output bpc based on the property
value. The default limitation is the lowest value in the range, 8bpc.
This was the old value before the range was uncapped.
This patch should be updated/replaced later once common drm support
for max bpc lands.
Bugzilla: https://bugs.freedesktop.org/108542
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=201585
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200645
Fixes: e03fd3f300 ("drm/amd/display: Do not limit color depth to 8bpc")
v2: rebase on upstream (Alex)
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
