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Author SHA1 Message Date
David S. Miller d5812a8627 Merge branch 'net-dsa-b53-Various-ARL-fixes'
Florian Fainelli says:

====================
net: dsa: b53: Various ARL fixes

This patch series fixes a number of short comings in the existing b53
driver ARL management logic in particular:

- we were not looking up the {MAC,VID} tuples against their VID, despite
  having VLANs enabled

- the MDB entries (multicast) would lose their validity as soon as a
  single port in the vector would leave the entry

- the ARL was currently under utilized because we would always place new
  entries in bin index #1, instead of using all possible bins available,
  thus reducing the ARL effective size by 50% or 75% depending on the
  switch generation

- it was possible to overwrite the ARL entries because no proper space
  verification was done

This patch series addresses all of these issues.

Changes in v2:
- added a new patch to correctly flip invidual VLAN learning vs. shared
  VLAN learning depending on the global VLAN state

- added Andrew's R-b tags for patches which did not change

- corrected some verbosity and minor issues in patch #4 to match caller
  expectations, also avoid a variable length DECLARE_BITMAP() call
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
Florian Fainelli 64fec9493f net: dsa: b53: b53_arl_rw_op() needs to select IVL or SVL
Flip the IVL_SVL_SELECT bit correctly based on the VLAN enable status,
the default is to perform Shared VLAN learning instead of Individual
learning.

Fixes: 1da6df85c6 ("net: dsa: b53: Implement ARL add/del/dump operations")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
Florian Fainelli 6344dbde6a net: dsa: b53: Rework ARL bin logic
When asking the ARL to read a MAC address, we will get a number of bins
returned in a single read. Out of those bins, there can essentially be 3
states:

- all bins are full, we have no space left, and we can either replace an
  existing address or return that full condition

- the MAC address was found, then we need to return its bin index and
  modify that one, and only that one

- the MAC address was not found and we have a least one bin free, we use
  that bin index location then

The code would unfortunately fail on all counts.

Fixes: 1da6df85c6 ("net: dsa: b53: Implement ARL add/del/dump operations")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
Florian Fainelli c2e77a18a7 net: dsa: b53: Fix ARL register definitions
The ARL {MAC,VID} tuple and the forward entry were off by 0x10 bytes,
which means that when we read/wrote from/to ARL bin index 0, we were
actually accessing the ARLA_RWCTRL register.

Fixes: 1da6df85c6 ("net: dsa: b53: Implement ARL add/del/dump operations")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
Florian Fainelli eab167f485 net: dsa: b53: Fix valid setting for MDB entries
When support for the MDB entries was added, the valid bit was correctly
changed to be assigned depending on the remaining port bitmask, that is,
if there were no more ports added to the entry's port bitmask, the entry
now becomes invalid. There was another assignment a few lines below that
would override this which would invalidate entries even when there were
still multiple ports left in the MDB entry.

Fixes: 5d65b64a3d ("net: dsa: b53: Add support for MDB")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
Florian Fainelli 2e97b0cd16 net: dsa: b53: Lookup VID in ARL searches when VLAN is enabled
When VLAN is enabled, and an ARL search is issued, we also need to
compare the full {MAC,VID} tuple before returning a successful search
result.

Fixes: 1da6df85c6 ("net: dsa: b53: Implement ARL add/del/dump operations")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:50:41 -07:00
Harry Pan 5b16ef2e43 perf/x86/cstate: Add Jasper Lake CPU support
The Jasper Lake processor is Tremont microarchitecture, reuse the
glm_cstates table of Goldmont and Goldmont Plus to enable the C-states
residency profiling.

Signed-off-by: Harry Pan <harry.pan@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200402190658.1.Ic02e891daac41303aed1f2fc6c64f6110edd27bd@changeid
2020-04-22 21:43:12 +02:00
David S. Miller 87f78f274d Merge branch 'vrf-looping'
David Ahern says:

====================
net: Fix looping with vrf, xfrms and qdisc on VRF

Trev reported that use of VRFs with xfrms is looping when a qdisc
is added to the VRF device. The combination of xfrm + qdisc is not
handled by the VRF driver which lost track that it has already
seen the packet.

The XFRM_TRANSFORMED flag is used by the netfilter code for a similar
purpose, so re-use for VRF. Patch 1 drops the #ifdef around setting
the flag in the xfrm output functions. Patch 2 adds a check to
the VRF driver for flag; if set the packet has already passed through
the VRF driver once and does not need to recirculated a second time.

This is a day 1 bug with VRFs; stable wise, I would only take this
back to 4.14. I have a set of test cases which I will submit to
net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:32:11 -07:00
David Ahern 16b9db1ce3 vrf: Check skb for XFRM_TRANSFORMED flag
To avoid a loop with qdiscs and xfrms, check if the skb has already gone
through the qdisc attached to the VRF device and then to the xfrm layer.
If so, no need for a second redirect.

Fixes: 193125dbd8 ("net: Introduce VRF device driver")
Reported-by: Trev Larock <trev@larock.ca>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:32:11 -07:00
David Ahern 0c922a4850 xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish
IPSKB_XFRM_TRANSFORMED and IP6SKB_XFRM_TRANSFORMED are skb flags set by
xfrm code to tell other skb handlers that the packet has been passed
through the xfrm output functions. Simplify the code and just always
set them rather than conditionally based on netfilter enabled thus
making the flag available for other users.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:32:11 -07:00
Maciej Żenczykowski 9175d3f388 ipv6: ndisc: RFC-ietf-6man-ra-pref64-09 is now published as RFC8781
See:
  https://www.rfc-editor.org/authors/rfc8781.txt

Cc: Erik Kline <ek@google.com>
Cc: Jen Linkova <furry@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: Michael Haro <mharo@google.com>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Fixes: c24a77edc9 ("ipv6: ndisc: add support for 'PREF64' dns64 prefix identifier")
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 12:15:07 -07:00
Rob Herring e996c1fd0c dt-bindings: Re-enable core schemas for dtbs_check
In commit 2ba06cd856 ("kbuild: Always validate DT binding examples"),
the core schemas (from dtschema repo) were inadvertently disabled for
dtbs_checks. Re-enable them.

Fixes: 2ba06cd856 ("kbuild: Always validate DT binding examples")
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-04-22 13:41:07 -05:00
Yuiko Oshino 63edbcceef net: phy: microchip_t1: add lan87xx_phy_init to initialize the lan87xx phy.
lan87xx_phy_init() initializes the lan87xx phy hardware
including its TC10 Wake-up and Sleep features.

Fixes: 3e50d2da58 ("Add driver for Microchip LAN87XX T1 PHYs")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
v0->v1:
    - Add more details in the commit message and source comments.
    - Update to the latest initialization sequences.
    - Add access_ereg_modify_changed().
    - Fix access_ereg() to access SMI bank correctly.
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 11:38:58 -07:00
Linus Torvalds c578ddb39e linux-kselftest-5.7-rc3
This kselftest update for Linux 5.7-rc3 consists of fixes to runner
 scripts and individual test run-time bugs. Includes fixes to tpm2
 and memfd test run-time regressions.
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Merge tag 'linux-kselftest-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "This consists of fixes to runner scripts and individual test run-time
  bugs. Includes fixes to tpm2 and memfd test run-time regressions"

* tag 'linux-kselftest-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/ipc: Fix test failure seen after initial test run
  Revert "Kernel selftests: tpm2: check for tpm support"
  selftests/ftrace: Add CONFIG_SAMPLE_FTRACE_DIRECT=m kconfig
  selftests/seccomp: allow clock_nanosleep instead of nanosleep
  kselftest/runner: allow to properly deliver signals to tests
  selftests/harness: fix spelling mistake "SIGARLM" -> "SIGALRM"
  selftests: Fix memfd test run-time regression
  selftests: vm: Fix 64-bit test builds for powerpc64le
  selftests: vm: Do not override definition of ARCH
2020-04-22 10:47:49 -07:00
Naoki Kiryu 0df9433fca usb: typec: altmode: Fix typec_altmode_get_partner sometimes returning an invalid pointer
Before this commit, typec_altmode_get_partner would return a
const struct typec_altmode * pointing to address 0x08 when
to_altmode(adev)->partner was NULL.

Add a check for to_altmode(adev)->partner being NULL to fix this.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206365
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1785972
Fixes: 5f54a85db5 ("usb: typec: Make sure an alt mode exist before getting its partner")
Cc: stable@vger.kernel.org
Signed-off-by: Naoki Kiryu <naonaokiryu2@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200422144345.43262-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-22 19:23:19 +02:00
Jeremie Francois (on alpha) e461bc9f9a scripts/config: allow colons in option strings for sed
Sed broke on some strings as it used colon as a separator.
I made it more robust by using \001, which is legit POSIX AFAIK.

E.g. ./config --set-str CONFIG_USBNET_DEVADDR "de:ad:be:ef:00:01"
failed with: sed: -e expression #1, char 55: unknown option to `s'

Signed-off-by: Jeremie Francois (on alpha) <jeremie.francois@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-23 01:10:16 +09:00
Lorenzo Pieralisi ef46738cc4 MAINTAINERS: Add Rob Herring and remove Andy Murray as PCI reviewers
Andy Murray decided to step down as PCI controller reviewer and Rob Herring
is willing to help review PCI controller patches.

Update the respective MAINTAINERS entries to reflect this change.

Link: https://lore.kernel.org/r/20200422150336.10528-1-lorenzo.pieralisi@arm.com
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Andrew Murray <amurray@thegoodpenguin.co.uk>
2020-04-22 10:53:37 -05:00
Kai-Heng Feng 09beebd8f9 PM: sleep: core: Switch back to async_schedule_dev()
Commit 8b9ec6b732 ("PM core: Use new async_schedule_dev command")
introduced a new function for better performance.

However commit f2a424f6c6 ("PM / core: Introduce dpm_async_fn()
helper") went back to the non-optimized version, async_schedule().

So switch back to the sync_schedule_dev() to improve performance

Fixes: f2a424f6c6 ("PM / core: Introduce dpm_async_fn() helper")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-22 16:36:18 +02:00
Niklas Schnelle 86dbf32da1 s390/pci: do not set affinity for floating irqs
with the introduction of CPU directed interrupts the kernel
parameter pci=force_floating was introduced to fall back
to the previous behavior using floating irqs.

However we were still setting the affinity in that case,
both in __irq_alloc_descs() and via the irq_set_affinity
callback in struct irq_chip.

For the former only set the affinity in the directed case.

The latter is explicitly set in zpci_directed_irq_init()
so we can just leave it unset for the floating case.

Fixes: e979ce7bce ("s390/pci: provide support for CPU directed interrupts")
Co-developed-by: Alexander Schmidt <alexs@linux.ibm.com>
Signed-off-by: Alexander Schmidt <alexs@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-04-22 16:20:55 +02:00
Philipp Rudo 8ebf6da9db s390/ftrace: fix potential crashes when switching tracers
Switching tracers include instruction patching. To prevent that a
instruction is patched while it's read the instruction patching is done
in stop_machine 'context'. This also means that any function called
during stop_machine must not be traced. Thus add 'notrace' to all
functions called within stop_machine.

Fixes: 1ec2772e0c ("s390/diag: add a statistic for diagnose calls")
Fixes: 38f2c691a4 ("s390: improve wait logic of stop_machine")
Fixes: 4ecf0a43e7 ("processor: get rid of cpu_relax_yield")
Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-04-22 16:20:55 +02:00
Wei Yongjun f58dcab68a
spi: spi-fsl-qspi: Fix return value check of devm_ioremap() in probe
In case of error, the function devm_ioremap() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Fixes: 858e26a515 ("spi: spi-fsl-qspi: Reduce devm_ioremap size to 4 times AHB buffer size")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Acked-by: Han Xu <han.xu@nxp.com>
Link: https://lore.kernel.org/r/20200422014543.111070-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-22 14:07:46 +01:00
Takashi Iwai fef66ae73a ALSA: usb-audio: Add connector notifier delegation
It turned out that ALC1220-VB USB-audio device gives the interrupt
event to some PCM terminals while those don't allow the connector
state request but only the actual I/O terminals return the request.
The recent commit 7dc3c5a017 ("ALSA: usb-audio: Don't create jack
controls for PCM terminals") excluded those phantom terminals, so
those events are ignored, too.

My first thought was that this could be easily deduced from the
associated terminals, but some of them have even no associate terminal
ID, hence it's not too trivial to figure out.

Since the number of such terminals are small and limited, this patch
implements another quirk table for the simple mapping of the
connectors.  It's not really scalable, but let's hope that there will
be not many such funky devices in future.

Fixes: 7dc3c5a017 ("ALSA: usb-audio: Don't create jack controls for PCM terminals")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206873
Link: https://lore.kernel.org/r/20200422113320.26664-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-22 13:33:46 +02:00
Eric Sandeen 81df1ad406 exfat: truncate atimes to 2s granularity
The timestamp for access_time has double seconds granularity(There is no
10msIncrement field for access_time unlike create/modify_time).
exfat's atimes are restricted to only 2s granularity so after
we set an atime, round it down to the nearest 2s and set the
sub-second component of the timestamp to 0.

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:06 +09:00
Eric Sandeen 674a9985b8 exfat: properly set s_time_gran
The s_time_gran superblock field indicates the on-disk nanosecond
granularity of timestamps, and for exfat that seems to be 10ms, so
set s_time_gran to 10000000ns. Without this, in-memory timestamps
change when they get re-read from disk.

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:06 +09:00
Tetsuhiro Kohada cbd445d9a9 exfat: remove 'bps' mount-option
remount fails because exfat_show_options() returns unsupported
option 'bps'.
> # mount -o ro,remount
> exfat: Unknown parameter 'bps'

To fix the problem, just remove 'bps' option from exfat_show_options().

Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:05 +09:00
Tetsuhiro Kohada b0516833d8 exfat: Unify access to the boot sector
Unify access to boot sector via 'sbi->pbr_bh'.
This fixes vol_flags inconsistency at read failed in fs_set_vol_flags(),
and buffer_head leak in __exfat_fill_super().

Signed-off-by: Tetsuhiro Kohada <Kohada.Tetsuhiro@dc.MitsubishiElectric.co.jp>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:05 +09:00
Thomas Backlund cd76ac258c exfat: add missing MODULE_ALIAS_FS()
This adds the necessary MODULE_ALIAS_FS() to exfat so the module gets
automatically loaded when an exfat filesystem is mounted.

Signed-off-by: Thomas Backlund <tmb@mageia.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:05 +09:00
Pali Rohár b7e038a924 exfat: Fix discard support
Discard support was always unconditionally disabled. Now it is disabled
only in the case when blk_queue_discard() returns false.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2020-04-22 20:14:05 +09:00
Christophe Leroy feb8e960d7 powerpc/mm: Fix CONFIG_PPC_KUAP_DEBUG on PPC32
CONFIG_PPC_KUAP_DEBUG is not selectable because it depends on PPC_32
which doesn't exists.

Fixing it leads to a deadlock due to a vital register getting
clobbered in _switch().

Change dependency to PPC32 and use r0 instead of r4 in _switch()

Fixes: e2fb9f5444 ("powerpc/32: Prepare for Kernel Userspace Access Protection")
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/540242f7d4573f7cdf1b3bf46bb35f743b2cd68f.1587124651.git.christophe.leroy@c-s.fr
2020-04-22 20:24:02 +10:00
Christophe Leroy b61c38baa9 powerpc/8xx: Fix STRICT_KERNEL_RWX startup test failure
WRITE_RO lkdtm test works.

But when selecting CONFIG_DEBUG_RODATA_TEST, the kernel reports
	rodata_test: test data was not read only

This is because when rodata test runs, there are still old entries
in TLB.

Flush TLB after setting kernel pages RO or NX.

Fixes: d5f17ee964 ("powerpc/8xx: don't disable large TLBs with CONFIG_STRICT_KERNEL_RWX")
Cc: stable@vger.kernel.org # v5.1+
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/485caac75f195f18c11eb077b0031fdd2bb7fb9e.1587361039.git.christophe.leroy@c-s.fr
2020-04-22 20:23:41 +10:00
Jason Gunthorpe 01b2bafe57 pnp: Use list_for_each_entry() instead of open coding
Aside from good practice, this avoids a warning from gcc 10:

./include/linux/kernel.h:997:3: warning: array subscript -31 is outside array bounds of ‘struct list_head[1]’ [-Warray-bounds]
  997 |  ((type *)(__mptr - offsetof(type, member))); })
      |  ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/linux/list.h:493:2: note: in expansion of macro ‘container_of’
  493 |  container_of(ptr, type, member)
      |  ^~~~~~~~~~~~
./include/linux/pnp.h:275:30: note: in expansion of macro ‘list_entry’
  275 | #define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
      |                              ^~~~~~~~~~
./include/linux/pnp.h:281:11: note: in expansion of macro ‘global_to_pnp_dev’
  281 |  (dev) != global_to_pnp_dev(&pnp_global); \
      |           ^~~~~~~~~~~~~~~~~
arch/x86/kernel/rtc.c:189:2: note: in expansion of macro ‘pnp_for_each_dev’
  189 |  pnp_for_each_dev(dev) {

Because the common code doesn't cast the starting list_head to the
containing struct.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
[ rjw: Whitespace adjustments ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-22 11:36:11 +02:00
Steve French d92c7ce41e cifs: minor update to comments around the cifs_tcp_ses_lock mutex
Update comment to note that it protects server->dstaddr

Signed-off-by: Steve French <stfrench@microsoft.com>
2020-04-21 23:51:18 -05:00
Voon Weifeng b9663b7ca6 net: stmmac: Enable SERDES power up/down sequence
This patch is to enable Intel SERDES power up/down sequence. The SERDES
converts 8/10 bits data to SGMII signal. Below is an example of
HW configuration for SGMII mode. The SERDES is located in the PHY IF
in the diagram below.

<-----------------GBE Controller---------->|<--External PHY chip-->
+----------+         +----+            +---+           +----------+
|   EQoS   | <-GMII->| DW | < ------ > |PHY| <-SGMII-> | External |
|   MAC    |         |xPCS|            |IF |           | PHY      |
+----------+         +----+            +---+           +----------+
       ^               ^                 ^                ^
       |               |                 |                |
       +---------------------MDIO-------------------------+

PHY IF configuration and status registers are accessible through
mdio address 0x15 which is defined as mdio_adhoc_addr. During D0,
The driver will need to power up PHY IF by changing the power state
to P0. Likewise, for D3, the driver sets PHY IF power state to P3.

Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:54:45 -07:00
Dejin Zheng d7a5502b0b net: broadcom: convert to devm_platform_ioremap_resource_byname()
Use the function devm_platform_ioremap_resource_byname() to simplify
source code which calls the functions platform_get_resource_byname()
and devm_ioremap_resource(). Remove also a few error messages which
became unnecessary with this software refactoring.

Suggested-by: Markus Elfring <Markus.Elfring@web.de>
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:53:54 -07:00
Taehee Yoo 4dee15b4fd macvlan: fix null dereference in macvlan_device_event()
In the macvlan_device_event(), the list_first_entry_or_null() is used.
This function could return null pointer if there is no node.
But, the macvlan module doesn't check the null pointer.
So, null-ptr-deref would occur.

      bond0
        |
   +----+-----+
   |          |
macvlan0   macvlan1
   |          |
 dummy0     dummy1

The problem scenario.
If dummy1 is removed,
1. ->dellink() of dummy1 is called.
2. NETDEV_UNREGISTER of dummy1 notification is sent to macvlan module.
3. ->dellink() of macvlan1 is called.
4. NETDEV_UNREGISTER of macvlan1 notification is sent to bond module.
5. __bond_release_one() is called and it internally calls
   dev_set_mac_address().
6. dev_set_mac_address() calls the ->ndo_set_mac_address() of macvlan1,
   which is macvlan_set_mac_address().
7. macvlan_set_mac_address() calls the dev_set_mac_address() with dummy1.
8. NETDEV_CHANGEADDR of dummy1 is sent to macvlan module.
9. In the macvlan_device_event(), it calls list_first_entry_or_null().
At this point, dummy1 and macvlan1 were removed.
So, list_first_entry_or_null() will return NULL.

Test commands:
    ip netns add nst
    ip netns exec nst ip link add bond0 type bond
    for i in {0..10}
    do
        ip netns exec nst ip link add dummy$i type dummy
	ip netns exec nst ip link add macvlan$i link dummy$i \
		type macvlan mode passthru
	ip netns exec nst ip link set macvlan$i master bond0
    done
    ip netns del nst

Splat looks like:
[   40.585687][  T146] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP DEI
[   40.587249][  T146] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[   40.588342][  T146] CPU: 1 PID: 146 Comm: kworker/u8:2 Not tainted 5.7.0-rc1+ #532
[   40.589299][  T146] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[   40.590469][  T146] Workqueue: netns cleanup_net
[   40.591045][  T146] RIP: 0010:macvlan_device_event+0x4e2/0x900 [macvlan]
[   40.591905][  T146] Code: 00 00 00 00 00 fc ff df 80 3c 06 00 0f 85 45 02 00 00 48 89 da 48 b8 00 00 00 00 00 fc ff d2
[   40.594126][  T146] RSP: 0018:ffff88806116f4a0 EFLAGS: 00010246
[   40.594783][  T146] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   40.595653][  T146] RDX: 0000000000000000 RSI: ffff88806547ddd8 RDI: ffff8880540f1360
[   40.596495][  T146] RBP: ffff88804011a808 R08: fffffbfff4fb8421 R09: fffffbfff4fb8421
[   40.597377][  T146] R10: ffffffffa7dc2107 R11: 0000000000000000 R12: 0000000000000008
[   40.598186][  T146] R13: ffff88804011a000 R14: ffff8880540f1000 R15: 1ffff1100c22de9a
[   40.599012][  T146] FS:  0000000000000000(0000) GS:ffff888067800000(0000) knlGS:0000000000000000
[   40.600004][  T146] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.600665][  T146] CR2: 00005572d3a807b8 CR3: 000000005fcf4003 CR4: 00000000000606e0
[   40.601485][  T146] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.602461][  T146] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.603443][  T146] Call Trace:
[   40.603871][  T146]  ? nf_tables_dump_setelem+0xa0/0xa0 [nf_tables]
[   40.604587][  T146]  ? macvlan_uninit+0x100/0x100 [macvlan]
[   40.605212][  T146]  ? __module_text_address+0x13/0x140
[   40.605842][  T146]  notifier_call_chain+0x90/0x160
[   40.606477][  T146]  dev_set_mac_address+0x28e/0x3f0
[   40.607117][  T146]  ? netdev_notify_peers+0xc0/0xc0
[   40.607762][  T146]  ? __module_text_address+0x13/0x140
[   40.608440][  T146]  ? notifier_call_chain+0x90/0x160
[   40.609097][  T146]  ? dev_set_mac_address+0x1f0/0x3f0
[   40.609758][  T146]  dev_set_mac_address+0x1f0/0x3f0
[   40.610402][  T146]  ? __local_bh_enable_ip+0xe9/0x1b0
[   40.611071][  T146]  ? bond_hw_addr_flush+0x77/0x100 [bonding]
[   40.611823][  T146]  ? netdev_notify_peers+0xc0/0xc0
[   40.612461][  T146]  ? bond_hw_addr_flush+0x77/0x100 [bonding]
[   40.613213][  T146]  ? bond_hw_addr_flush+0x77/0x100 [bonding]
[   40.613963][  T146]  ? __local_bh_enable_ip+0xe9/0x1b0
[   40.614631][  T146]  ? bond_time_in_interval.isra.31+0x90/0x90 [bonding]
[   40.615484][  T146]  ? __bond_release_one+0x9f0/0x12c0 [bonding]
[   40.616230][  T146]  __bond_release_one+0x9f0/0x12c0 [bonding]
[   40.616949][  T146]  ? bond_enslave+0x47c0/0x47c0 [bonding]
[   40.617642][  T146]  ? lock_downgrade+0x730/0x730
[   40.618218][  T146]  ? check_flags.part.42+0x450/0x450
[   40.618850][  T146]  ? __mutex_unlock_slowpath+0xd0/0x670
[   40.619519][  T146]  ? trace_hardirqs_on+0x30/0x180
[   40.620117][  T146]  ? wait_for_completion+0x250/0x250
[   40.620754][  T146]  bond_netdev_event+0x822/0x970 [bonding]
[   40.621460][  T146]  ? __module_text_address+0x13/0x140
[   40.622097][  T146]  notifier_call_chain+0x90/0x160
[   40.622806][  T146]  rollback_registered_many+0x660/0xcf0
[   40.623522][  T146]  ? netif_set_real_num_tx_queues+0x780/0x780
[   40.624290][  T146]  ? notifier_call_chain+0x90/0x160
[   40.624957][  T146]  ? netdev_upper_dev_unlink+0x114/0x180
[   40.625686][  T146]  ? __netdev_adjacent_dev_unlink_neighbour+0x30/0x30
[   40.626421][  T146]  ? mutex_is_locked+0x13/0x50
[   40.627016][  T146]  ? unregister_netdevice_queue+0xf2/0x240
[   40.627663][  T146]  unregister_netdevice_many.part.134+0x13/0x1b0
[   40.628362][  T146]  default_device_exit_batch+0x2d9/0x390
[   40.628987][  T146]  ? unregister_netdevice_many+0x40/0x40
[   40.629615][  T146]  ? dev_change_net_namespace+0xcb0/0xcb0
[   40.630279][  T146]  ? prepare_to_wait_exclusive+0x2e0/0x2e0
[   40.630943][  T146]  ? ops_exit_list.isra.9+0x97/0x140
[   40.631554][  T146]  cleanup_net+0x441/0x890
[ ... ]

Fixes: e289fd2817 ("macvlan: fix the problem when mac address changes for passthru mode")
Reported-by: syzbot+5035b1f9dc7ea4558d5a@syzkaller.appspotmail.com
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:51:55 -07:00
Jason Yan c95576a34c e1000: remove unneeded conversion to bool
The '==' expression itself is bool, no need to convert it to bool again.
This fixes the following coccicheck warning:

drivers/net/ethernet/intel/e1000/e1000_main.c:1479:44-49: WARNING:
conversion to bool not needed here

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:45:32 -07:00
Jason Yan 7ff4f0631f i40e: Remove unneeded conversion to bool
The '==' expression itself is bool, no need to convert it to bool again.
This fixes the following coccicheck warning:

drivers/net/ethernet/intel/i40e/i40e_main.c:1614:52-57: WARNING:
conversion to bool not needed here
drivers/net/ethernet/intel/i40e/i40e_main.c:11439:52-57: WARNING:
conversion to bool not needed here

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:45:32 -07:00
Jason Yan e9a9e51994 ptp: Remove unneeded conversion to bool
The '==' expression itself is bool, no need to convert it to bool again.
This fixes the following coccicheck warning:

drivers/ptp/ptp_ines.c:403:55-60: WARNING: conversion to bool not
needed here
drivers/ptp/ptp_ines.c:404:55-60: WARNING: conversion to bool not
needed here

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:45:32 -07:00
Jiri Slaby 526f3d96b8 cgroup, netclassid: remove double cond_resched
Commit 018d26fcd1 ("cgroup, netclassid: periodically release file_lock
on classid") added a second cond_resched to write_classid indirectly by
update_classid_task. Remove the one in write_classid.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Dmitry Yakunin <zeil@yandex-team.ru>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 15:44:30 -07:00
Linus Torvalds 18bf34080c Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
 "15 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  tools/vm: fix cross-compile build
  coredump: fix null pointer dereference on coredump
  mm: shmem: disable interrupt when acquiring info->lock in userfaultfd_copy path
  shmem: fix possible deadlocks on shmlock_user_lock
  vmalloc: fix remap_vmalloc_range() bounds checks
  mm/shmem: fix build without THP
  mm/ksm: fix NULL pointer dereference when KSM zero page is enabled
  tools/build: tweak unused value workaround
  checkpatch: fix a typo in the regex for $allocFunctions
  mm, gup: return EINTR when gup is interrupted by fatal signals
  mm/hugetlb: fix a addressing exception caused by huge_pte_offset
  MAINTAINERS: add an entry for kfifo
  mm/userfaultfd: disable userfaultfd-wp on x86_32
  slub: avoid redzone when choosing freepointer location
  sh: fix build error in mm/init.c
2020-04-21 13:26:54 -07:00
Linus Torvalds 8160a563cf Bugfixes, and a few cleanups to the newly-introduced assembly language
vmentry code for AMD.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Bugfixes, and a few cleanups to the newly-introduced assembly language
  vmentry code for AMD"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: PPC: Book3S HV: Handle non-present PTEs in page fault functions
  kvm: Disable objtool frame pointer checking for vmenter.S
  MAINTAINERS: add a reviewer for KVM/s390
  KVM: s390: Fix PV check in deliverable_irqs()
  kvm: Handle reads of SandyBridge RAPL PMU MSRs rather than injecting #GP
  KVM: Remove CREATE_IRQCHIP/SET_PIT2 race
  KVM: SVM: Fix __svm_vcpu_run declaration.
  KVM: SVM: Do not setup frame pointer in __svm_vcpu_run
  KVM: SVM: Fix build error due to missing release_pages() include
  KVM: SVM: Do not mark svm_vcpu_run with STACK_FRAME_NON_STANDARD
  kvm: nVMX: match comment with return type for nested_vmx_exit_reflected
  kvm: nVMX: reflect MTF VM-exits if injected by L1
  KVM: s390: Return last valid slot if approx index is out-of-bounds
  KVM: Check validity of resolved slot when searching memslots
  KVM: VMX: Enable machine check support for 32bit targets
  KVM: SVM: move more vmentry code to assembly
  KVM: SVM: fix compilation with modular PSP and non-modular KVM
2020-04-21 12:59:10 -07:00
Takashi Iwai e7b6b3ec01 ASoC: Fixes for v5.7
Quite a lot of fixes here, a lot of driver specific ones but the biggest
 one is the revert of changes to the startup and shutdown sequence for
 DAIs that went in during the merge window - they broke some older x86
 platforms and attempts to fix them didn't succeed so it's safer to just
 roll them back and try to make sure those platforms are handled properly
 in any future attempt.
 
 The rockchip S/PDIF DT stuff was IIRC for validation issues.
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Merge tag 'asoc-fix-v5.7-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.7

Quite a lot of fixes here, a lot of driver specific ones but the biggest
one is the revert of changes to the startup and shutdown sequence for
DAIs that went in during the merge window - they broke some older x86
platforms and attempts to fix them didn't succeed so it's safer to just
roll them back and try to make sure those platforms are handled properly
in any future attempt.

The rockchip S/PDIF DT stuff was IIRC for validation issues.
2020-04-21 21:41:36 +02:00
Alexander Tsoy cf9fb7b873 ALSA: usb-audio: Apply async workaround for Scarlett 2i4 2nd gen
Due to rounding error driver sometimes incorrectly calculate next packet
size, which results in audible clicks on devices with synchronous playback
endpoints. For example on a high speed bus and a sample rate 44.1 kHz it
loses one sample every ~40.9 seconds. Fortunately playback interface on
Scarlett 2i4 2nd gen has a working explicit feedback endpoint, so we can
switch playback data endpoint to asynchronous mode as a workaround.

Signed-off-by: Alexander Tsoy <alexander@tsoy.me>
Link: https://lore.kernel.org/r/20200421190908.462860-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-21 21:30:28 +02:00
Linus Torvalds 189522da8b virtio: fixes, cleanups
Some bug fixes.
 Cleanup a couple of issues that surfaced meanwhile.
 Disable vhost on ARM with OABI for now - to be fixed
 fully later in the cycle or in the next release.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes and cleanups from Michael Tsirkin:

 - Some bug fixes

 - Cleanup a couple of issues that surfaced meanwhile

 - Disable vhost on ARM with OABI for now - to be fixed fully later in
   the cycle or in the next release.

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (24 commits)
  vhost: disable for OABI
  virtio: drop vringh.h dependency
  virtio_blk: add a missing include
  virtio-balloon: Avoid using the word 'report' when referring to free page hinting
  virtio-balloon: make virtballoon_free_page_report() static
  vdpa: fix comment of vdpa_register_device()
  vdpa: make vhost, virtio depend on menu
  vdpa: allow a 32 bit vq alignment
  drm/virtio: fix up for include file changes
  remoteproc: pull in slab.h
  rpmsg: pull in slab.h
  virtio_input: pull in slab.h
  remoteproc: pull in slab.h
  virtio-rng: pull in slab.h
  virtgpu: pull in uaccess.h
  tools/virtio: make asm/barrier.h self contained
  tools/virtio: define aligned attribute
  virtio/test: fix up after IOTLB changes
  vhost: Create accessors for virtqueues private_data
  vdpasim: Return status in vdpasim_get_status
  ...
2020-04-21 12:27:18 -07:00
Linus Torvalds b61f7ff0f6 tpmdd updates for Linux v5.6-rc3
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Merge tag 'tpmdd-next-20200421' of git://git.infradead.org/users/jjs/linux-tpmdd

Pull tpm fixes from Jarkko Sakkinen:
 "A few bug fixes"

* tag 'tpmdd-next-20200421' of git://git.infradead.org/users/jjs/linux-tpmdd:
  tpm/tpm_tis: Free IRQ if probing fails
  tpm: fix wrong return value in tpm_pcr_extend
  tpm: ibmvtpm: retry on H_CLOSED in tpm_ibmvtpm_send()
  tpm: Export tpm2_get_cc_attrs_tbl for ibmvtpm driver as module
2020-04-21 12:24:33 -07:00
Linus Torvalds 20f1648909 Two trivial clang-format changes:
- Don't indent C++ namespaces (Ian Rogers)
 
  - The usual clang-format macro list update (Miguel Ojeda)
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Merge tag 'clang-format-for-linus-v5.7-rc3' of git://github.com/ojeda/linux

Pull clang-format fixlets from Miguel Ojeda:
 "Two trivial clang-format changes:

   - Don't indent C++ namespaces (Ian Rogers)

   - The usual clang-format macro list update (Miguel Ojeda)"

* tag 'clang-format-for-linus-v5.7-rc3' of git://github.com/ojeda/linux:
  clang-format: Update with the latest for_each macro list
  clang-format: don't indent namespaces
2020-04-21 12:07:42 -07:00
David S. Miller 76fc6a9a9a Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) flow_block_cb memleak in nf_flow_table_offload_del_cb(), from Roi Dayan.

2) Fix error path handling in nf_nat_inet_register_fn(), from Hillf Danton.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-21 11:50:31 -07:00
Kamal Dasu 2f5f5302c5
spi: bcm-qspi: MSPI_SPCR0_MSB MSTR bit exists only on legacy controllers
Set MASTER bit on the MSPI_SPCR0_MSB only for legacy MSPI and HIF_MSPI
controllers.

Fixes: fa236a7ef2 ("spi: bcm-qspi: Add Broadcom MSPI driver")
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Link: https://lore.kernel.org/r/20200420190853.45614-10-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-21 19:48:12 +01:00
Kamal Dasu ab2b493d17
spi: Add support for mspi on brcmstb SoCs
Added documentation for compatibility for brcmstb SoCs :
7425, 7429, 7435, 7216, 7278

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Link: https://lore.kernel.org/r/20200420190853.45614-3-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-21 19:48:11 +01:00
Kamal Dasu 43613a77b8
spi: bcm-qspi: add support for MSPI sys clk 108Mhz
Adding support for MSPI sys clk 108Mhz available on 7216
and 7278 BRCMSTB SoCs.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Link: https://lore.kernel.org/r/20200420190853.45614-9-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-21 19:48:09 +01:00