Commit Graph

969878 Commits

Author SHA1 Message Date
Roman Gushchin ddf8503c7c bpf: Memcg-based memory accounting for bpf progs
Include memory used by bpf programs into the memcg-based accounting.
This includes the memory used by programs itself, auxiliary data,
statistics and bpf line info. A memory cgroup containing the
process which loads the program is getting charged.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20201201215900.3569844-6-guro@fb.com
2020-12-02 18:28:06 -08:00
Roman Gushchin 18b2db3b03 mm: Convert page kmemcg type to a page memcg flag
PageKmemcg flag is currently defined as a page type (like buddy, offline,
table and guard).  Semantically it means that the page was accounted as a
kernel memory by the page allocator and has to be uncharged on the
release.

As a side effect of defining the flag as a page type, the accounted page
can't be mapped to userspace (look at page_has_type() and comments above).
In particular, this blocks the accounting of vmalloc-backed memory used
by some bpf maps, because these maps do map the memory to userspace.

One option is to fix it by complicating the access to page->mapcount,
which provides some free bits for page->page_type.

But it's way better to move this flag into page->memcg_data flags.
Indeed, the flag makes no sense without enabled memory cgroups and memory
cgroup pointer set in particular.

This commit replaces PageKmemcg() and __SetPageKmemcg() with
PageMemcgKmem() and an open-coded OR operation setting the memcg pointer
with the MEMCG_DATA_KMEM bit.  __ClearPageKmemcg() can be simple deleted,
as the whole memcg_data is zeroed at once.

As a bonus, on !CONFIG_MEMCG build the PageMemcgKmem() check will be
compiled out.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Link: https://lkml.kernel.org/r/20201027001657.3398190-5-guro@fb.com
Link: https://lore.kernel.org/bpf/20201201215900.3569844-5-guro@fb.com
2020-12-02 18:28:06 -08:00
Roman Gushchin 87944e2992 mm: Introduce page memcg flags
The lowest bit in page->memcg_data is used to distinguish between struct
memory_cgroup pointer and a pointer to a objcgs array.  All checks and
modifications of this bit are open-coded.

Let's formalize it using page memcg flags, defined in enum
page_memcg_data_flags.

Additional flags might be added later.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Link: https://lkml.kernel.org/r/20201027001657.3398190-4-guro@fb.com
Link: https://lore.kernel.org/bpf/20201201215900.3569844-4-guro@fb.com
2020-12-02 18:28:06 -08:00
Roman Gushchin 270c6a7146 mm: memcontrol/slab: Use helpers to access slab page's memcg_data
To gather all direct accesses to struct page's memcg_data field in one
place, let's introduce 3 new helpers to use in the slab accounting code:

  struct obj_cgroup **page_objcgs(struct page *page);
  struct obj_cgroup **page_objcgs_check(struct page *page);
  bool set_page_objcgs(struct page *page, struct obj_cgroup **objcgs);

They are similar to the corresponding API for generic pages, except that
the setter can return false, indicating that the value has been already
set from a different thread.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Link: https://lkml.kernel.org/r/20201027001657.3398190-3-guro@fb.com
Link: https://lore.kernel.org/bpf/20201201215900.3569844-3-guro@fb.com
2020-12-02 18:28:06 -08:00
Roman Gushchin bcfe06bf26 mm: memcontrol: Use helpers to read page's memcg data
Patch series "mm: allow mapping accounted kernel pages to userspace", v6.

Currently a non-slab kernel page which has been charged to a memory cgroup
can't be mapped to userspace.  The underlying reason is simple: PageKmemcg
flag is defined as a page type (like buddy, offline, etc), so it takes a
bit from a page->mapped counter.  Pages with a type set can't be mapped to
userspace.

But in general the kmemcg flag has nothing to do with mapping to
userspace.  It only means that the page has been accounted by the page
allocator, so it has to be properly uncharged on release.

Some bpf maps are mapping the vmalloc-based memory to userspace, and their
memory can't be accounted because of this implementation detail.

This patchset removes this limitation by moving the PageKmemcg flag into
one of the free bits of the page->mem_cgroup pointer.  Also it formalizes
accesses to the page->mem_cgroup and page->obj_cgroups using new helpers,
adds several checks and removes a couple of obsolete functions.  As the
result the code became more robust with fewer open-coded bit tricks.

This patch (of 4):

Currently there are many open-coded reads of the page->mem_cgroup pointer,
as well as a couple of read helpers, which are barely used.

It creates an obstacle on a way to reuse some bits of the pointer for
storing additional bits of information.  In fact, we already do this for
slab pages, where the last bit indicates that a pointer has an attached
vector of objcg pointers instead of a regular memcg pointer.

This commits uses 2 existing helpers and introduces a new helper to
converts all read sides to calls of these helpers:
  struct mem_cgroup *page_memcg(struct page *page);
  struct mem_cgroup *page_memcg_rcu(struct page *page);
  struct mem_cgroup *page_memcg_check(struct page *page);

page_memcg_check() is intended to be used in cases when the page can be a
slab page and have a memcg pointer pointing at objcg vector.  It does
check the lowest bit, and if set, returns NULL.  page_memcg() contains a
VM_BUG_ON_PAGE() check for the page not being a slab page.

To make sure nobody uses a direct access, struct page's
mem_cgroup/obj_cgroups is converted to unsigned long memcg_data.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Link: https://lkml.kernel.org/r/20201027001657.3398190-1-guro@fb.com
Link: https://lkml.kernel.org/r/20201027001657.3398190-2-guro@fb.com
Link: https://lore.kernel.org/bpf/20201201215900.3569844-2-guro@fb.com
2020-12-02 18:28:05 -08:00
Zhang Changzhong 832e09798c vxlan: fix error return code in __vxlan_dev_create()
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 0ce1822c2a ("vxlan: add adjacent link to limit depth level")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Link: https://lore.kernel.org/r/1606903122-2098-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 18:04:02 -08:00
Zhang Changzhong aba84871bd net: pasemi: fix error return code in pasemi_mac_open()
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 72b05b9940 ("pasemi_mac: RX/TX ring management cleanup")
Fixes: 8d636d8bc5 ("pasemi_mac: jumbo frame support")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Link: https://lore.kernel.org/r/1606903035-1838-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 18:03:58 -08:00
Zhang Changzhong ff9924897f cxgb3: fix error return code in t3_sge_alloc_qset()
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: b1fb1f280d ("cxgb3 - Fix dma mapping error path")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Raju Rangoju <rajur@chelsio.com>
Link: https://lore.kernel.org/r/1606902965-1646-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 18:03:53 -08:00
Jonas Bonn cec85994c6 bareudp: constify device_type declaration
device_type may be declared as const.

Signed-off-by: Jonas Bonn <jonas@norrbonn.se>
Link: https://lore.kernel.org/r/20201202122324.564918-1-jonas@norrbonn.se
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 18:00:18 -08:00
Jakub Kicinski db77471259 Merge branch 'nfc-s3fwrn5-support-a-uart-interface'
Bongsu Jeon says:

====================
nfc: s3fwrn5: Support a UART interface

S3FWRN82 is the Samsung's NFC chip that supports the UART communication.
Before adding the UART driver module, I did refactoring the s3fwrn5_i2c
module to reuse the common blocks.
====================

Link: https://lore.kernel.org/r/1606909661-3814-1-git-send-email-bongsu.jeon@samsung.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:55:27 -08:00
Bongsu Jeon 3f52c2cb7e nfc: s3fwrn5: Support a UART interface
Since S3FWRN82 NFC Chip, The UART interface can be used.
S3FWRN82 uses NCI protocol and supports I2C and UART interface.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:55:25 -08:00
Bongsu Jeon b3799d592f nfc: s3fwrn5: extract the common phy blocks
Extract the common phy blocks to reuse it.
The UART module will use the common blocks.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:55:25 -08:00
Bongsu Jeon 337da14995 nfc: s3fwrn5: reduce the EN_WAIT_TIME
The delay of 20ms is enough to enable and
wake up the Samsung's nfc chip.

Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:55:25 -08:00
Bongsu Jeon 36d076201b dt-bindings: net: nfc: s3fwrn5: Support a UART interface
Since S3FWRN82 NFC Chip, The UART interface can be used.
S3FWRN82 supports I2C and UART interface.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:55:25 -08:00
Jakub Kicinski 32e417024f mlx5-next-2020-12-02
Low level mlx5 updates required by both netdev and rdma trees:
 
   net/mlx5: Treat host PF vport as other (non eswitch manager) vport
   net/mlx5: Enable host PF HCA after eswitch is initialized
   net/mlx5: Rename peer_pf to host_pf
   net/mlx5: Make API mlx5_core_is_ecpf accept const pointer
   net/mlx5: Export steering related functions
   net/mlx5: Expose other function ifc bits
   net/mlx5: Expose IP-in-IP TX and RX capability bits
   net/mlx5: Update the hardware interface definition for vhca state
   net/mlx5: Update the list of the PCI supported devices
   net/mlx5: Avoid exposing driver internal command helpers
   net/mlx5: Add ts_cqe_to_dest_cqn related bits
   net/mlx5: Add misc4 to mlx5_ifc_fte_match_param_bits
   net/mlx5: Check dr mask size against mlx5_match_param size
   net/mlx5: Add sampler destination type
   net/mlx5: Add sample offload hardware bits and structures
 
 Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEGhZs6bAKwk/OTgTpSD+KveBX+j4FAl/IOZcACgkQSD+KveBX
 +j4J8wgAuxwflrYrbCWXV7LE08J7T7ZHRDE+jEbaZ0Zp9mOsYDDpcifpKwy2EVRf
 RKcpMYh/GzAljmEpeWIAlMxmlpXhKWXTDruWCx73r1jvdXf/RU24/zQHa6BjeiDo
 rMB8bgiW4a66+z4LcN/U6ahbVM5gScBNEt2sS1OIi9ZInngGVo9FgfhYMpERPNcH
 3+mcHulCnGBNbbLwoTllOcgbxexn+xoByukg5Z0ddBJp007DMjzBIWDpDS0y2HaT
 jGo1LYONgRc3zoGVmdeu9F+tSsWBIgsaiyGxKj1T/8sZUaNz2TKj9VOiYIj9BLff
 cp6GRc88k7HWA4tImSHQiLbK6cx+yA==
 =mjvI
 -----END PGP SIGNATURE-----

Merge tag 'mlx5-next-2020-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Saeed Mahameed says:

====================
mlx5-next-2020-12-02

Low level mlx5 updates required by both netdev and rdma trees.

* tag 'mlx5-next-2020-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
  net/mlx5: Treat host PF vport as other (non eswitch manager) vport
  net/mlx5: Enable host PF HCA after eswitch is initialized
  net/mlx5: Rename peer_pf to host_pf
  net/mlx5: Make API mlx5_core_is_ecpf accept const pointer
  net/mlx5: Export steering related functions
  net/mlx5: Expose other function ifc bits
  net/mlx5: Expose IP-in-IP TX and RX capability bits
  net/mlx5: Update the hardware interface definition for vhca state
  net/mlx5: Update the list of the PCI supported devices
  net/mlx5: Avoid exposing driver internal command helpers
  net/mlx5: Add ts_cqe_to_dest_cqn related bits
  net/mlx5: Add misc4 to mlx5_ifc_fte_match_param_bits
  net/mlx5: Check dr mask size against mlx5_match_param size
  net/mlx5: Add sampler destination type
  net/mlx5: Add sample offload hardware bits and structures
====================

Link: https://lore.kernel.org/r/20201203011010.213440-1-saeedm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:29:23 -08:00
Dan Carpenter 6ee50c8e26 net/x25: prevent a couple of overflows
The .x25_addr[] address comes from the user and is not necessarily
NUL terminated.  This leads to a couple problems.  The first problem is
that the strlen() in x25_bind() can read beyond the end of the buffer.

The second problem is more subtle and could result in memory corruption.
The call tree is:
  x25_connect()
  --> x25_write_internal()
      --> x25_addr_aton()

The .x25_addr[] buffers are copied to the "addresses" buffer from
x25_write_internal() so it will lead to stack corruption.

Verify that the strings are NUL terminated and return -EINVAL if they
are not.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Fixes: a9288525d2 ("X25: Dont let x25_bind use addresses containing characters")
Reported-by: "kiyin(尹亮)" <kiyin@tencent.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Martin Schiller <ms@dev.tdt.de>
Link: https://lore.kernel.org/r/X8ZeAKm8FnFpN//B@mwanda
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:26:36 -08:00
Linus Torvalds 34816d20f1 Various gfs2 fixes
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEEJZs3krPW0xkhLMTc1b+f6wMTZToFAl/H/pUUHGFncnVlbmJh
 QHJlZGhhdC5jb20ACgkQ1b+f6wMTZTqxhRAAuTKHz1jMYHNAWm1NVVRiGVENhjlV
 g5kRcRmf8m/VAWmI+HM0J34CbHpWc1IgJnjID/vZ/VB8QQPmoDoEFrD/ple9V6A4
 xQJzQcG9uvLir5h43R2SWR6OSSijtEDjvpQpRQSK3B2e1otRV+W7mLjPBkg410rY
 l9Cj01QhCwCv1dVO7VknSEB1Jpkhe0Vvr1z4DropeU5JEBSADTl5deTkFWbinDo1
 9nygDw01AdWXhR1FNJTAy8XJYlcM3dx6xDuHD9xJH9HciWsocOr+EqtPfJEEsCSf
 X6CrWY3mYZBr1kJFcvp2HD5rKYhw0xC0gZiHEnvmZx5XKTKoDKq2+2s2wQOwWk3B
 QIvEfLoAzV6mKBHRC8mCDw2bImj8FDrvBkmmJnlyL6nJDrriBXimFAJPX7MryKTJ
 jdvm0JFRyY0ja3LxLxBVwiKnKiw6yY6fPjpMWzi042P/PhshRSvazxgUf+pc69CB
 Czo3W9MnNGWzP73ALIsuVxG81RW48CvAJdXOmoWIqjEeqnC0YZ3vgwInQcqBzton
 fCI38XN6CG1UbwaVxoZGoPS5FIfBbrTL5v62e3U8JIv3J4ol5fWCEruUhImsByGI
 w3UkiuNqWjOab/774m9ZS0eBXCEn6LAizvZSgf3pt+8VRoN20RxF3k1Jhvm7g7I3
 IbOHK9kddrycH9Q=
 =EHzo
 -----END PGP SIGNATURE-----

Merge tag 'gfs2-v5.10-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 fixes from Andreas Gruenbacher:
 "Various gfs2 fixes"

* tag 'gfs2-v5.10-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Fix deadlock between gfs2_{create_inode,inode_lookup} and delete_work_func
  gfs2: Upgrade shared glocks for atime updates
  gfs2: Don't freeze the file system during unmount
  gfs2: check for empty rgrp tree in gfs2_ri_update
  gfs2: set lockdep subclass for iopen glocks
  gfs2: Fix deadlock dumping resource group glocks
2020-12-02 17:25:23 -08:00
Jakub Kicinski 6ec1dfb568 Merge branch 'net-dsa-microchip-make-ksz8795-driver-more-versatile'
Michael Grzeschik says:

====================
net: dsa: microchip: make ksz8795 driver more versatile

This series changes the ksz8795 driver to use more dynamic variables
instead of static defines. The purpose is to prepare the driver to
be used with other microchip switches with a similar layout.
====================

Link: https://lore.kernel.org/r/20201201204506.13473-1-m.grzeschik@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:32 -08:00
Michael Grzeschik 02ffbb0270 net: dsa: microchip: ksz8795: use num_vlans where possible
The value of the define VLAN_TABLE_ENTRIES can be derived from
num_vlans. This patch is using the variable num_vlans instead and
removes the extra define.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik 241ed719bc net: dsa: microchip: ksz8795: use port_cnt instead of TOTOAL_PORT_NUM
To get the driver working with other chips using different port counts
the dyn_mac_table should be flushed depending on the amount of available
ports. This patch remove the extra define TOTOAL_PORT_NUM and is
making use of the dynamic port_cnt variable instead.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik c9f4633b93 net: dsa: microchip: remove usage of mib_port_count
The variable mib_port_cnt has the same meaning as port_cnt.
This driver removes the extra variable and is using port_cnt
everywhere instead.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik 94374dd162 net: dsa: microchip: ksz8795: align port_cnt usage with other microchip drivers
The ksz8795 driver is using port_cnt differently to the other microchip
DSA drivers. It sets it to the external physical port count, than the
whole port count (including the cpu port). This patch is aligning the
variables purpose with the other microchip drivers.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik 557d1a1fba net: dsa: microchip: remove superfluous num_ports assignment
The variable num_ports is already assigned in the init function. The
drivers individual init function already handles the different purpose
of port_cnt vs port_cnt + 1. This patch removes the extra assignment of
the variable.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik 4ce2a984ab net: dsa: microchip: ksz8795: use phy_port_cnt where possible
The driver is currently hard coded to SWITCH_PORT_NUM being
(TOTAL_PORT_NUM - 1) which is limited to 4 user ports for the ksz8795.
The phy_port_cnt is referring to its user ports. The patch removes the
extra define and use the assigned variable phy_port_cnt instead so the
driver can be used on different switches.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik 65fe1acf07 net: dsa: microchip: ksz8795: use mib_cnt where possible
The variable mib_cnt is assigned with TOTAL_SWITCH_COUNTER_NUM. This
value can also be derived from the array size of mib_names. This patch
uses this calculated value instead, removes the extra define and uses
mib_cnt everywhere possible instead of the static define
TOTAL_SWITCH_COUNTER_NUM. Keeping it in a separate variable instead of
using ARRAY_SIZE everywhere instead makes the driver more flexible for
future use of devices with different amount of counters.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik 31b62c78c1 net: dsa: microchip: ksz8795: use reg_mib_cnt where possible
The extra define SWITCH_COUNTER_NUM is a copy of the KSZ8795_COUNTER_NUM
define. This patch initializes reg_mib_cnt with KSZ8795_COUNTER_NUM,
makes use of reg_mib_cnt everywhere instead and removes the extra
define.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik 7fc32b41fe net: dsa: microchip: ksz8795: move variable assignments from detect to init
This patch moves all variable assignments to the init function. It
leaves the detect function for its single purpose to detect which chip
version is found.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:29 -08:00
Michael Grzeschik 68a1b676db net: dsa: microchip: ksz8795: remove superfluous port_cnt assignment
The port_cnt assignment will be done again in the init function.
This patch removes the previous assignment in the detect function.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:28 -08:00
Michael Grzeschik 453aa4cd7e net: dsa: microchip: ksz8795: remove unused last_port variable
The variable last_port is not used anywhere, this patch removes it.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:16:28 -08:00
Alex Elder 9693e08f28 net: ipa: fix build-time bug in ipa_hardware_config_qsb()
Jon Hunter reported observing a build bug in the IPA driver:
  https://lore.kernel.org/netdev/5b5d9d40-94d5-5dad-b861-fd9bef8260e2@nvidia.com

The problem is that the QMB0 max read value set for IPA v4.5 (16) is
too large to fit in the 4-bit field.

The actual value we want is 0, which requests that the hardware use
the maximum it is capable of.

Reported-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20201202141502.21265-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 17:11:21 -08:00
Alexei Starovoitov 9e83f54f53 Merge branch 'bpf: expose bpf_{s,g}etsockopt helpers to bind{4,6} hooks'
Stanislav Fomichev says:

====================

This might be useful for the listener sockets to pre-populate
some options. Since those helpers require locked sockets,
I'm changing bind hooks to lock/unlock the sockets. This
should not cause any performance overhead because at this
point there shouldn't be any socket lock contention and the
locking/unlocking should be cheap.

Also, as part of the series, I convert test_sock_addr bpf
assembly into C (and preserve the narrow load tests) to
make it easier to extend with th bpf_setsockopt later on.

v2:
* remove version from bpf programs (Andrii Nakryiko)
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-12-02 13:25:25 -08:00
Stanislav Fomichev a540c81a2b selftests/bpf: Extend bind{4,6} programs with a call to bpf_setsockopt
To make sure it doesn't trigger sock_owned_by_me splat.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201202172516.3483656-4-sdf@google.com
2020-12-02 13:25:11 -08:00
Stanislav Fomichev 427167c0b0 bpf: Allow bpf_{s,g}etsockopt from cgroup bind{4,6} hooks
I have to now lock/unlock socket for the bind hook execution.
That shouldn't cause any overhead because the socket is unbound
and shouldn't receive any traffic.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrey Ignatov <rdna@fb.com>
Link: https://lore.kernel.org/bpf/20201202172516.3483656-3-sdf@google.com
2020-12-02 13:25:11 -08:00
Stanislav Fomichev a999696c54 selftests/bpf: Rewrite test_sock_addr bind bpf into C
I'm planning to extend it in the next patches. It's much easier to
work with C than BPF assembly.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201202172516.3483656-2-sdf@google.com
2020-12-02 13:25:11 -08:00
Linus Torvalds 3bb61aa618 arm64 fixes for -rc7
- Fix numerous issues with instrumentation and exception entry
 
 - Fix hideous typo in unused register field definition
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl/HvbwQHHdpbGxAa2Vy
 bmVsLm9yZwAKCRC3rHDchMFjNFTMB/oD0ucfP6CH65w+7Sbsv2L8FABfYzSrA9gP
 f1cmeh1+MyRN4Nbx2ves5wcRGoX1CgZ8KFAmLXG6yyn7UDA/q27CTELknwobhOft
 tQIPB2hFDW9qq3VBXFReL3aoXLnWUiRL3nBxQFt7LG1Xor/ivEb1ZFht351UklDh
 u1P6NVptpjXFuGPvdqxkHo2WzT0QHI57MRuc1l7I1FRo4dV1nKSlwohu0Ydii4q9
 8oLhx77Ga1SWK80IztNmpo7CSMP/FLGDwbUE3vAaftUJx5CBt+lYR1CeWNACSEvy
 22y7CkJWKGQccG62oHI7zQaZm1+fum70ndP5dDlfQW/BcCaz8vRH
 =KSDc
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "I'm sad to say that we've got an unusually large arm64 fixes pull for
  rc7 which addresses numerous significant instrumentation issues with
  our entry code.

  Without these patches, lockdep is hopelessly unreliable in some
  configurations [1,2] and syzkaller is therefore not a lot of use
  because it's so noisy.

  Although much of this has always been broken, it appears to have been
  exposed more readily by other changes such as 044d0d6de9 ("lockdep:
  Only trace IRQ edges") and general lockdep improvements around IRQ
  tracing and NMIs.

  Fixing this properly required moving much of the instrumentation hooks
  from our entry assembly into C, which Mark has been working on for the
  last few weeks. We're not quite ready to move to the recently added
  generic functions yet, but the code here has been deliberately written
  to mimic that closely so we can look at cleaning things up once we
  have a bit more breathing room.

  Having said all that, the second version of these patches was posted
  last week and I pushed it into our CI (kernelci and cki) along with a
  commit which forced on PROVE_LOCKING, NOHZ_FULL and
  CONTEXT_TRACKING_FORCE. The result? We found a real bug in the
  md/raid10 code [3].

  Oh, and there's also a really silly typo patch that's unrelated.

  Summary:

   - Fix numerous issues with instrumentation and exception entry

   - Fix hideous typo in unused register field definition"

[1] https://lore.kernel.org/r/CACT4Y+aAzoJ48Mh1wNYD17pJqyEcDnrxGfApir=-j171TnQXhw@mail.gmail.com
[2] https://lore.kernel.org/r/20201119193819.GA2601289@elver.google.com
[3] https://lore.kernel.org/r/94c76d5e-466a-bc5f-e6c2-a11b65c39f83@redhat.com

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mte: Fix typo in macro definition
  arm64: entry: fix EL1 debug transitions
  arm64: entry: fix NMI {user, kernel}->kernel transitions
  arm64: entry: fix non-NMI kernel<->kernel transitions
  arm64: ptrace: prepare for EL1 irq/rcu tracking
  arm64: entry: fix non-NMI user<->kernel transitions
  arm64: entry: move el1 irq/nmi logic to C
  arm64: entry: prepare ret_to_user for function call
  arm64: entry: move enter_from_user_mode to entry-common.c
  arm64: entry: mark entry code as noinstr
  arm64: mark idle code as noinstr
  arm64: syscall: exit userspace before unmasking exceptions
2020-12-02 12:27:37 -08:00
Linus Torvalds 2c6ffa9e9b vdpa: last minute bugfixes
A couple of fixes that surfaced at the last minute.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl/HYDoPHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRpAlcIAKqNeivPCnQMwn8dgi12wvEEa45KANom/Zmt
 L48q/Lbx2gbORio6vpCtjLwGd/biHG7rVZCyXu0UIdDDIprOVtDxpHpXfZOV7Qqd
 2CGEYnYIY+GFwluskOEi+dIZmP0C2qa1q8y+BzpfuZrXTlG7h0onqR+LNqcoaTTN
 P5jFnUzwfB1hEdb4ShHWUDTc7FweyrK/rbcIWCL7kgjl9drVgy6pLBXCJOad4kE7
 z7tZCrWiQ7cHGwApojo8FjUAyT0nA24J8p9JHMIKUHVVTVNlvrZaOunyWan50NeB
 nPXR64StmWex7S9Jl2juA8XihPenSE9MwVL7wmzN4jLSLhMSQR4=
 =9f9c
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull vdpa fixes from Michael Tsirkin:
 "A couple of fixes that surfaced at the last minute"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost_vdpa: return -EFAULT if copy_to_user() fails
  vdpa: mlx5: fix vdpa/vhost dependencies
2020-12-02 12:20:11 -08:00
Linus Torvalds bb95d60783 sound fixes for 5.10-rc7
Here are the pending sound fixes for 5.10: all small device-specific
 fixes, and nothing particular stands out, so far.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAl/HU9QOHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE+yKxAAvA8rsSYYmP7ToAFN7OO7kM+YmRQyIBiTc6fj
 yjp942LtjhP0sih//ozN7aeVgQ0sQTDpC9UiXnAumwYNelfaCPtNySsNmtPRlPnk
 53x+vIgrtaL0AjU/oJ1w01jH2B4cX2/wOI6tlb/yp9SpXO4AgvGzqFXDOED8TRtM
 GlhK7V6E//5bBIUU5yN+X4glfl3lGlQ/8QJISZ888I8LItf4Peo6Me6s+p2jAr4l
 QyMHs/HInodCfH7gCWsCL55bSxm3jJ99zERVbcXGgfq5H9bRh6Iob8mtMuP5g2nB
 zHnibBYY+PazmEf8d/PDKRtT+xELspODxhd7agr2ISuKZeRcuhMxNKfjYjYWqJf3
 V7J9gBwi1tvJszpJCzEseu6ulb5nnrDvBwPZIw8ib4gnvHD8Aed/v2NBaUm9g8rF
 qdkqLIalUxtCTyhlZKIGeYTGCAV+WD+fxbHRCtSuEdNQxPp+p8EiJiSGsxTiwYZo
 +4MWD0aR8+7YlVUj5ONiLHznZOKXcgSr7CyXG9x+8YXie5X4SY81txR97KjDTOzG
 cZgxl7d1bkCQrYOO+/C0MGd9k9/8rnkNhTEhoXTAkfZg3jFOrFH1dMd8FU681OV2
 Lt+zpgNzdImvijkD73pU/k1dq3YkLheR52Zk+PQ4drrPgUSylUDVzDWZ+3srN23/
 SRsjZPI=
 =veB2
 -----END PGP SIGNATURE-----

Merge tag 'sound-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are the pending sound fixes for 5.10: all small device-specific
  fixes, and nothing particular stands out, so far"

* tag 'sound-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Add mute LED quirk to yet another HP x360 model
  ALSA: hda/realtek: Fix bass speaker DAC assignment on Asus Zephyrus G14
  ALSA: hda/generic: Add option to enforce preferred_dacs pairs
  ALSA: usb-audio: US16x08: fix value count for level meters
  ALSA: hda/realtek - Add new codec supported for ALC897
  ASoC: rt5682: change SAR voltage threshold
  ASoC: wm_adsp: fix error return code in wm_adsp_load()
  ALSA: hda/realtek: Enable headset of ASUS UX482EG & B9400CEA with ALC294
  ASoC: qcom: Fix enabling BCLK and LRCLK in LPAIF invalid state
  ALSA: hda/realtek - Fixed Dell AIO wrong sound tone
  ASoC: Intel: bytcr_rt5640: Fix HP Pavilion x2 Detachable quirks
2020-12-02 12:14:03 -08:00
Linus Torvalds 8a02ec8f35 Have bootconfig size and checksum be little endian
In case the bootconfig is created on one kind of endian machine, and then
 read on the other kind of endian kernel, the size and checksum will be
 incorrect. Instead, have both the size and checksum always be little
 endian and have the tool and the kernel convert it from little endian to
 or from the host endian.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCX8brThQccm9zdGVkdEBn
 b29kbWlzLm9yZwAKCRAp5XQQmuv6qiBMAQDe1vsp/SyHO9H5pnsepdmk4fERn0bC
 Q0qtCoYp1xUKOQEAjnOJKdCE1O6n24u+b+3jw3BHswQLyUKOFaPcIM7jSgM=
 =Z6kA
 -----END PGP SIGNATURE-----

Merge tag 'trace-v5.10-rc6-bootconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull bootconfig fixes from Steven Rostedt:
 "Have bootconfig size and checksum be little endian

  In case the bootconfig is created on one kind of endian machine, and
  then read on the other kind of endian kernel, the size and checksum
  will be incorrect. Instead, have both the size and checksum always be
  little endian and have the tool and the kernel convert it from little
  endian to or from the host endian"

* tag 'trace-v5.10-rc6-bootconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  docs: bootconfig: Add the endianness of fields
  tools/bootconfig: Store size and checksum in footer as le32
  bootconfig: Load size and checksum in the footer as le32
2020-12-02 12:09:36 -08:00
Eric Dumazet 05e3ecea4a mptcp: avoid potential infinite loop in mptcp_recvmsg()
If a packet is ready in receive queue, and application isssues
a recvmsg()/recvfrom()/recvmmsg() request asking for zero bytes,
we hang in mptcp_recvmsg().

Fixes: ea4ca586b1 ("mptcp: refine MPTCP-level ack scheduling")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Link: https://lore.kernel.org/r/20201202171657.1185108-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 12:06:12 -08:00
Dan Carpenter 2ce5a30711 octeontx2-af: debugfs: delete dead code
These debugfs never return NULL so all this code will never be run.

In the normal case, (and in this case particularly), the debugfs
functions are not supposed to be checked for errors so all this error
checking code can be safely deleted.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/X8c6vpapJDYI2eWI@mwanda
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 12:00:55 -08:00
Frieder Schrempf 59f96cf6ba NFC: nxp-nci: Make firmware GPIO pin optional
There are other NXP NCI compatible NFC controllers such as the PN7150
that use an integrated firmware and therefore do not have a GPIO to
select firmware downloading mode. To support this kind of controller,
let's make the firmware GPIO optional.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20201201113921.6572-1-frieder.schrempf@kontron.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 11:58:19 -08:00
Yangbo Lu 07500a6085 dpaa_eth: copy timestamp fields to new skb in A-050385 workaround
The timestamp fields should be copied to new skb too in
A-050385 workaround for later TX timestamping handling.

Fixes: 3c68b8fffb ("dpaa_eth: FMan erratum A050385 workaround")
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Link: https://lore.kernel.org/r/20201201075258.1875-1-yangbo.lu@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-02 11:51:45 -08:00
Kalle Valo 9eb597c744 Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.11. Major changes:

ath11k

* Fast Initial Link Setup (FILS) discovery and unsolicited broadcast
  probe response support

* qcom,ath11k-calibration-variant Device Tree setting

* cold boot calibration support

* new DFS region: JP

wnc36xx

* enable connection monitoring and keepalive in firmware

ath10k

* firmware IRAM recovery feature

mhi

* merge mhi-ath11k-immutable branch to make MHI API change go smoothly
2020-12-02 21:46:55 +02:00
Tom Rix fc6877b879 wl1251: remove trailing semicolon in macro definition
The macro use will already have a semicolon.

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201127180835.2769297-1-trix@redhat.com
2020-12-02 21:39:20 +02:00
Tom Rix a460b0e1ba airo: remove trailing semicolon in macro definition
The macro use will already have a semicolon.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201127175821.2756988-1-trix@redhat.com
2020-12-02 21:38:54 +02:00
Ajay Singh 339754ffdb wilc1000: added queue support for WMM
Added multiple queues[BK,BE,VI,VO] to handle different priority data
packets. Before adding a packet to the queue, checked its priority from
the header, and then add to the suitable queue. The limit for each queue
is maintained separately. Also while passing the packets to the firmware
via VMM take care to select data packets based on priority and available
space.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201125114059.10006-6-ajay.kathat@microchip.com
2020-12-02 21:38:12 +02:00
Ajay Singh 9c172f30b4 wilc1000: call complete() for failure in wilc_wlan_txq_add_cfg_pkt()
Added complete() call for failure case in wilc_wlan_txq_add_cfg_pkt().

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201125114059.10006-5-ajay.kathat@microchip.com
2020-12-02 21:38:11 +02:00
Ajay Singh 66aea5d198 wilc1000: free resource in wilc_wlan_txq_add_mgmt_pkt() for failure path
Before returing from wilc_wlan_txq_add_mgmt_pkt() invoke tx_complete_fn()
callback to free up allocated memory for failure case.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201125114059.10006-4-ajay.kathat@microchip.com
2020-12-02 21:38:10 +02:00
Ajay Singh dd460e2ac0 wilc1000: free resource in wilc_wlan_txq_add_net_pkt() for failure path
Before returing from wilc_wlan_txq_add_net_pkt() invoke tx_complete_fn()
callback to free up allocated memory for failure cases.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201125114059.10006-3-ajay.kathat@microchip.com
2020-12-02 21:38:08 +02:00
Ajay Singh c04fabacb7 wilc1000: added 'ndo_set_mac_address' callback support
Added support for 'ndo_set_mac_address call' callback to allow change of
interface MAC address.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201125114059.10006-2-ajay.kathat@microchip.com
2020-12-02 21:38:07 +02:00