Commit Graph

1095648 Commits

Author SHA1 Message Date
Mickaël Salaün
6533d0c3a8
selftests/landlock: Test landlock_create_ruleset(2) argument check ordering
Add inval_create_ruleset_arguments, extension of
inval_create_ruleset_flags, to also check error ordering for
landlock_create_ruleset(2).

This is similar to the previous commit checking landlock_add_rule(2).

Test coverage for security/landlock is 94.4% of 504 lines accorging to
gcc/gcov-11.

Link: https://lore.kernel.org/r/20220506160820.524344-11-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:55 +02:00
Luiz Angelo Daros de Luca
fe7324b932 net: dsa: OF-ware slave_mii_bus
If found, register the DSA internally allocated slave_mii_bus with an OF
"mdio" child object. It can save some drivers from creating their
custom internal MDIO bus.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 12:27:53 +01:00
Mickaël Salaün
eba39ca4b1
landlock: Change landlock_restrict_self(2) check ordering
According to the Landlock goal to be a security feature available to
unprivileges processes, it makes more sense to first check for
no_new_privs before checking anything else (i.e. syscall arguments).

Merge inval_fd_enforce and unpriv_enforce_without_no_new_privs tests
into the new restrict_self_checks_ordering.  This is similar to the
previous commit checking other syscalls.

Link: https://lore.kernel.org/r/20220506160820.524344-10-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:51 +02:00
Mickaël Salaün
589172e563
landlock: Change landlock_add_rule(2) argument check ordering
This makes more sense to first check the ruleset FD and then the rule
attribute.  It will be useful to factor out code for other rule types.

Add inval_add_rule_arguments tests, extension of empty_path_beneath_attr
tests, to also check error ordering for landlock_add_rule(2).

Link: https://lore.kernel.org/r/20220506160820.524344-9-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:51 +02:00
Mickaël Salaün
d1788ad990
selftests/landlock: Add tests for O_PATH
The O_PATH flag is currently not handled by Landlock.  Let's make sure
this behavior will remain consistent with the same ruleset over time.

Cc: Shuah Khan <shuah@kernel.org>
Link: https://lore.kernel.org/r/20220506160820.524344-8-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:50 +02:00
Mickaël Salaün
6a1bdd4a0b
selftests/landlock: Fully test file rename with "remove" access
These tests were missing to check the check_access_path() call with all
combinations of maybe_remove(old_dentry) and maybe_remove(new_dentry).

Extend layout1.link with a new complementary test and check that
REMOVE_FILE is not required to link a file.

Cc: Shuah Khan <shuah@kernel.org>
Link: https://lore.kernel.org/r/20220506160820.524344-7-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:50 +02:00
Mickaël Salaün
d18955d094
selftests/landlock: Extend access right tests to directories
Make sure that all filesystem access rights can be tied to directories.

Rename layout1.file_access_rights to layout1.file_and_dir_access_rights
to reflect this change.

Cc: Shuah Khan <shuah@kernel.org>
Link: https://lore.kernel.org/r/20220506160820.524344-6-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:49 +02:00
Mickaël Salaün
c56b3bf566
selftests/landlock: Add tests for unknown access rights
Make sure that trying to use unknown access rights returns an error.

Cc: Shuah Khan <shuah@kernel.org>
Link: https://lore.kernel.org/r/20220506160820.524344-5-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:49 +02:00
Mickaël Salaün
291865bd7e
selftests/landlock: Extend tests for minimal valid attribute size
This might be useful when the struct landlock_ruleset_attr will get more
fields.

Cc: Shuah Khan <shuah@kernel.org>
Link: https://lore.kernel.org/r/20220506160820.524344-4-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:48 +02:00
Mickaël Salaün
87129ef136
selftests/landlock: Make tests build with old libc
Replace SYS_<syscall> with __NR_<syscall>.  Using the __NR_<syscall>
notation, provided by UAPI, is useful to build tests on systems without
the SYS_<syscall> definitions.

Replace SYS_pivot_root with __NR_pivot_root, and SYS_move_mount with
__NR_move_mount.

Define renameat2() and RENAME_EXCHANGE if they are unknown to old build
systems.

Cc: Shuah Khan <shuah@kernel.org>
Link: https://lore.kernel.org/r/20220506160820.524344-3-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:48 +02:00
Mickaël Salaün
a13e248ff9
landlock: Fix landlock_add_rule(2) documentation
It is not mandatory to pass a file descriptor obtained with the O_PATH
flag.  Also, replace rule's accesses with ruleset's accesses.

Link: https://lore.kernel.org/r/20220506160820.524344-2-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:47 +02:00
Mickaël Salaün
81709f3dcc
samples/landlock: Format with clang-format
Let's follow a consistent and documented coding style.  Everything may
not be to our liking but it is better than tacit knowledge.  Moreover,
this will help maintain style consistency between different developers.

This contains only whitespace changes.

Automatically formatted with:
clang-format-14 -i samples/landlock/*.[ch]

Link: https://lore.kernel.org/r/20220506160513.523257-8-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:46 +02:00
Mickaël Salaün
9805a722db
samples/landlock: Add clang-format exceptions
In preparation to a following commit, add clang-format on and
clang-format off stanzas around constant definitions.  This enables to
keep aligned values, which is much more readable than packed
definitions.

Link: https://lore.kernel.org/r/20220506160513.523257-7-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:46 +02:00
Mickaël Salaün
371183fa57
selftests/landlock: Format with clang-format
Let's follow a consistent and documented coding style.  Everything may
not be to our liking but it is better than tacit knowledge.  Moreover,
this will help maintain style consistency between different developers.

This contains only whitespace changes.

Automatically formatted with:
clang-format-14 -i tools/testing/selftests/landlock/*.[ch]

Link: https://lore.kernel.org/r/20220506160513.523257-6-mic@digikod.net
Cc: stable@vger.kernel.org
[mic: Update style according to
https://lore.kernel.org/r/02494cb8-2aa5-1769-f28d-d7206f284e5a@digikod.net]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2022-05-23 13:27:39 +02:00
Jakub Kicinski
32c53420d2 eth: de4x5: remove support for Generic DECchip & DIGITAL EtherWORKS PCI/EISA
Looks like almost all changes to this driver had been tree-wide
refactoring since git era begun. There is one commit from Al
15 years ago which could potentially be fixing a real bug.

The driver is using virt_to_bus() and is a real magnet for pointless
cleanups. It seems unlikely to have real users. Let's try to shed
this maintenance burden.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 11:43:51 +01:00
Dan Carpenter
0097e86c8e net: ethernet: mtk_eth_soc: fix error code in mtk_flow_offload_replace()
Preserve the error code from mtk_foe_entry_commit().  Do not return
success.

Fixes: c4f033d9e0 ("net: ethernet: mtk_eth_soc: rework hardware flow table management")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 11:42:34 +01:00
David S. Miller
682a8c633f Merge branch 'dsa-multi-cpu-port-part-two'
Vladimir Oltean says:

====================
DSA changes for multiple CPU ports (part 2)

As explained in part 1:
https://patchwork.kernel.org/project/netdevbpf/cover/20220511095020.562461-1-vladimir.oltean@nxp.com/
I am trying to enable the second internal port pair from the NXP LS1028A
Felix switch for DSA-tagged traffic via "ocelot-8021q". This series
represents part 2 (of an unknown number) of that effort.

This series deals only with a minor bug fix (first patch) and with code
reorganization in the Felix DSA driver and in the Ocelot switch library.
Hopefully this will lay the ground for a clean introduction of new UAPI
for changing the DSA master of a user port in part 3.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 10:40:10 +01:00
Vladimir Oltean
a4e044dc4c net: dsa: felix: tag_8021q preparation for multiple CPU ports
Update the VCAP filters to support multiple tag_8021q CPU ports.

TX works using a filter for VLAN ID on the ingress of the CPU port, with
a redirect and a VLAN pop action. This can be updated trivially by
amending the ingress port mask of this rule to match on all tag_8021q
CPU ports.

RX works using a filter for ingress port on the egress of the CPU port,
with a VLAN push action. Here we need to replicate these filters for
each tag_8021q CPU port, and let them all have the same action.
This means that the OCELOT_VCAP_ES0_TAG_8021Q_RXVLAN() cookie needs to
encode a unique value for every {user port, CPU port} pair it's given.
Do this by encoding the CPU port in the upper 16 bits of the cookie, and
the user port in the lower 16 bits.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 10:39:55 +01:00
Vladimir Oltean
c295f9831f net: mscc: ocelot: switch from {,un}set to {,un}assign for tag_8021q CPU ports
There is a desire for the felix driver to gain support for multiple
tag_8021q CPU ports, but the current model prevents it.

This is because ocelot_apply_bridge_fwd_mask() only takes into
consideration whether a port is a tag_8021q CPU port, but not whose CPU
port it is.

We need a model where we can have a direct affinity between an ocelot
port and a tag_8021q CPU port. This serves as the basis for multiple CPU
ports.

Declare a "dsa_8021q_cpu" backpointer in struct ocelot_port which
encodes that affinity. Repurpose the "ocelot_set_dsa_8021q_cpu" API to
"ocelot_assign_dsa_8021q_cpu" to express the change of paradigm.

Note that this change makes the first practical use of the new
ocelot_port->index field in ocelot_port_unassign_dsa_8021q_cpu(), where
we need to remove the old tag_8021q CPU port from the reserved VLAN range.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 10:39:54 +01:00
Vladimir Oltean
8c166acb60 net: dsa: felix: directly call ocelot_port_{set,unset}_dsa_8021q_cpu
Absorb the final details of calling ocelot_port_{,un}set_dsa_8021q_cpu(),
i.e. the need to lock &ocelot->fwd_domain_lock, into the callee, to
simplify the caller and permit easier code reuse later.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 10:39:54 +01:00
Vladimir Oltean
a72e23dd67 net: dsa: felix: update bridge fwd mask from ocelot lib when changing tag_8021q CPU
Add more logic to ocelot_port_{,un}set_dsa_8021q_cpu() from the ocelot
switch lib by encapsulating the ocelot_apply_bridge_fwd_mask() call that
felix used to have.

This is necessary because the CPU port change procedure will also need
to do this, and it's good to reduce code duplication by having an entry
point in the ocelot switch lib that does all that is needed.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 10:39:54 +01:00
Vladimir Oltean
61be79ba2d net: dsa: felix: move the updating of PGID_CPU to the ocelot lib
PGID_CPU must be updated every time a port is configured or unconfigured
as a tag_8021q CPU port. The ocelot switch lib already has a hook for
that operation, so move the updating of PGID_CPU to those hooks.

These bits are pretty specific to DSA, so normally I would keep them out
of the common switch lib, but when tag_8021q is in use, this has
implications upon the forwarding mask determined by
ocelot_apply_bridge_fwd_mask() and called extensively by the switch lib.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 10:39:54 +01:00
Vladimir Oltean
129b7532a0 net: dsa: fix missing adjustment of host broadcast flooding
PGID_BC is configured statically by ocelot_init() to flood towards the
CPU port module, and dynamically by ocelot_port_set_bcast_flood()
towards all user ports.

When the tagging protocol changes, the intention is to turn off flooding
towards the old pipe towards the host, and to turn it on towards the new
pipe.

Due to a recent change which removed the adjustment of PGID_BC from
felix_set_host_flood(), 3 things happen.

- when we change from NPI to tag_8021q mode: in this mode, the CPU port
  module is accessed via registers, and used to read PTP packets with
  timestamps. We fail to disable broadcast flooding towards the CPU port
  module, and to enable broadcast flooding towards the physical port
  that serves as a DSA tag_8021q CPU port.

- from tag_8021q to NPI mode: in this mode, the CPU port module is
  redirected to a physical port. We fail to disable broadcast flooding
  towards the physical tag_8021q CPU port, and to enable it towards the
  CPU port module at ocelot->num_phys_ports.

- when the ports are put in promiscuous mode, we also fail to update
  PGID_BC towards the host pipe of the current protocol.

First issue means that felix_check_xtr_pkt() has to do extra work,
because it will not see only PTP packets, but also broadcasts. It needs
to dequeue these packets just to drop them.

Third issue is inconsequential, since PGID_BC is allocated from the
nonreserved multicast PGID space, and these PGIDs are conveniently
initialized to 0x7f (i.e. flood towards all ports except the CPU port
module). Broadcasts reach the NPI port via ocelot_init(), and reach the
tag_8021q CPU port via the hardware defaults.

Second issue is also inconsequential, because we fail both at disabling
and at enabling broadcast flooding on a port, so the defaults mentioned
above are preserved, and they are fine except for the performance impact.

Fixes: 7a29d220f4 ("net: dsa: felix: reimplement tagging protocol change with function pointers")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 10:39:54 +01:00
Vlastimil Babka
e001897da6 Merge branches 'slab/for-5.19/stackdepot' and 'slab/for-5.19/refactor' into slab/for-linus 2022-05-23 11:14:32 +02:00
liuyacan
8c3b8dc5cc net/smc: fix listen processing for SMC-Rv2
In the process of checking whether RDMAv2 is available, the current
implementation first sets ini->smcrv2.ib_dev_v2, and then allocates
smc buf desc, but the latter may fail. Unfortunately, the caller
will only check the former. In this case, a NULL pointer reference
will occur in smc_clc_send_confirm_accept() when accessing
conn->rmb_desc.

This patch does two things:
1. Use the return code to determine whether V2 is available.
2. If the return code is NODEV, continue to check whether V1 is
available.

Fixes: e49300a6bf ("net/smc: add listen processing for SMC-Rv2")
Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 10:08:33 +01:00
liuyacan
75c1edf23b net/smc: postpone sk_refcnt increment in connect()
Same trigger condition as commit 86434744. When setsockopt runs
in parallel to a connect(), and switch the socket into fallback
mode. Then the sk_refcnt is incremented in smc_connect(), but
its state stay in SMC_INIT (NOT SMC_ACTIVE). This cause the
corresponding sk_refcnt decrement in __smc_release() will not be
performed.

Fixes: 86434744fe ("net/smc: add fallback check to connect()")
Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-23 09:58:47 +01:00
Petr Mladek
1c6fd59943 Merge branch 'rework/kthreads' into for-linus 2022-05-23 10:55:39 +02:00
Borislav Petkov
be80a1ca51 Merge branches 'edac-misc' and 'edac-alloc-cleanup' into edac-updates-for-v5.19
Combine all collected EDAC changes for submission into v5.19:

* edac-misc:
  EDAC/xgene: Fix typo processsors -> processors
  EDAC/i5100: Remove unused inline function i5100_nrecmema_dm_buf_id()
  EDAC/ghes: Change ghes_hw from global to static
  EDAC/armada_xp: Use devm_platform_ioremap_resource()
  EDAC/synopsys: Add a SPDX identifier
  EDAC/synopsys: Add driver support for i.MX platforms
  EDAC/dmc520: Don't print an error for each unconfigured interrupt line
  efi/cper: Reformat CPER memory error location to more readable
  EDAC/ghes: Unify CPER memory error location reporting
  efi/cper: Add a cper_mem_err_status_str() to decode error description
  powerpc/85xx: Remove fsl,85... bindings

* edac-alloc-cleanup:
  EDAC: Use kcalloc()
  EDAC/mc: Get rid of edac_align_ptr()
  EDAC/device: Sanitize edac_device_alloc_ctl_info() definition
  EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info()
  EDAC/pci: Get rid of the silly one-shot memory allocation in edac_pci_alloc_ctl_info()
  EDAC/mc: Get rid of silly one-shot struct allocation in edac_mc_alloc()

Signed-off-by: Borislav Petkov <bp@suse.de>
2022-05-23 10:19:30 +02:00
Yang Li
dc60001e1a xtensa: Return true/false (not 1/0) from bool function
Return boolean values ("true" or "false") instead of 1 or 0 from bool
function. This fixes the following warnings from coccicheck:

./arch/xtensa/kernel/traps.c:304:10-11: WARNING: return of 0/1 in
function 'check_div0' with return type bool

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Message-Id: <20220518230953.112266-1-yang.lee@linux.alibaba.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2022-05-23 00:33:05 -07:00
Tadeusz Struk
64ba4b15e5 exfat: check if cluster num is valid
Syzbot reported slab-out-of-bounds read in exfat_clear_bitmap.
This was triggered by reproducer calling truncute with size 0,
which causes the following trace:

BUG: KASAN: slab-out-of-bounds in exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174
Read of size 8 at addr ffff888115aa9508 by task syz-executor251/365

Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
 print_address_description+0x81/0x3c0 mm/kasan/report.c:233
 __kasan_report mm/kasan/report.c:419 [inline]
 kasan_report+0x1a4/0x1f0 mm/kasan/report.c:436
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174
 exfat_free_cluster+0x25a/0x4a0 fs/exfat/fatent.c:181
 __exfat_truncate+0x99e/0xe00 fs/exfat/file.c:217
 exfat_truncate+0x11b/0x4f0 fs/exfat/file.c:243
 exfat_setattr+0xa03/0xd40 fs/exfat/file.c:339
 notify_change+0xb76/0xe10 fs/attr.c:336
 do_truncate+0x1ea/0x2d0 fs/open.c:65

Move the is_valid_cluster() helper from fatent.c to a common
header to make it reusable in other *.c files. And add is_valid_cluster()
to validate if cluster number is within valid range in exfat_clear_bitmap()
and exfat_set_bitmap().

Link: https://syzkaller.appspot.com/bug?id=50381fc73821ecae743b8cf24b4c9a04776f767c
Reported-by: syzbot+a4087e40b9c13aad7892@syzkaller.appspotmail.com
Fixes: 1e49a94cf7 ("exfat: add bitmap operations")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-23 11:17:30 +09:00
Yuezhang Mo
1b61383854 exfat: reduce block requests when zeroing a cluster
If 'dirsync' is enabled, when zeroing a cluster, submitting
sector by sector will generate many block requests, will
cause the block device to not fully perform its performance.

This commit makes the sectors in a cluster to be submitted in
once, it will reduce the number of block requests. This will
make the block device to give full play to its performance.

Test create 1000 directories on SD card with:

$ time (for ((i=0;i<1000;i++)); do mkdir dir${i}; done)

Performance has been improved by more than 73% on imx6q-sabrelite.

Cluster size       Before         After       Improvement
64  KBytes         3m34.036s      0m56.052s   73.8%
128 KBytes         6m2.644s       1m13.354s   79.8%
256 KBytes         11m22.202s     1m39.451s   85.4%

imx6q-sabrelite:
  - CPU: 792 MHz x4
  - Memory: 1GB DDR3
  - SD Card: SanDisk 8GB Class 4

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-23 11:17:30 +09:00
Yuezhang Mo
97d6fb1b48 block: add sync_blockdev_range()
sync_blockdev_range() is to support syncing multiple sectors
with as few block device requests as possible, it is helpful
to make the block device to give full play to its performance.

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-23 11:17:30 +09:00
Chung-Chiang Cheng
9b002894b4 exfat: introduce mount option 'sys_tz'
EXFAT_TZ_VALID bit in {create,modify,access}_tz is corresponding to
OffsetValid field in exfat specification [1]. When this bit isn't
set, timestamps should be treated as having the same UTC offset as
the current local time.

Currently, there is an option 'time_offset' for users to specify the
UTC offset for this issue. This patch introduces a new mount option
'sys_tz' to use system timezone as time offset.

Link: [1] https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification#74102-offsetvalid-field

Signed-off-by: Chung-Chiang Cheng <cccheng@synology.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-23 11:17:29 +09:00
Yuezhang Mo
d8dad2588a exfat: fix referencing wrong parent directory information after renaming
During renaming, the parent directory information maybe
updated. But the file/directory still references to the
old parent directory information.

This bug will cause 2 problems.

(1) The renamed file can not be written.

    [10768.175172] exFAT-fs (sda1): error, failed to bmap (inode : 7afd50e4 iblock : 0, err : -5)
    [10768.184285] exFAT-fs (sda1): Filesystem has been set read-only
    ash: write error: Input/output error

(2) Some dentries of the renamed file/directory are not set
    to deleted after removing the file/directory.

exfat_update_parent_info() is a workaround for the wrong parent
directory information being used after renaming. Now that bug is
fixed, this is no longer needed, so remove it.

Fixes: 5f2aa07507 ("exfat: add inode operations")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Daniel Palmer <daniel.palmer@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-23 11:17:29 +09:00
Jakub Kicinski
1e39b27bd9 Merge branch 'fix-silence-gcc-12-warnings-in-drivers-net-wireless'
Jakub Kicinski says:

====================
Fix/silence GCC 12 warnings in drivers/net/wireless/

as mentioned off list we'd like to get GCC 12 warnings quashed.
This set takes care of the warnings we have in drivers/net/wireless/
mostly by relegating them to W=1/W=2 builds.
====================

Link: https://lore.kernel.org/r/20220520194320.2356236-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-22 17:23:16 -07:00
Jakub Kicinski
1318252617 wifi: carl9170: silence a GCC 12 -Warray-bounds warning
carl9170 has a big union (struct carl9170_cmd) with all the command
types in it. But it allocates buffers only large enough for a given
command. This upsets GCC 12:

drivers/net/wireless/ath/carl9170/cmd.c:125:30: warning: array subscript ‘struct carl9170_cmd[0]’ is partly outside array bounds of ‘unsigned char[8]’ [-Warray-bounds]
  125 |                 tmp->hdr.cmd = cmd;
      |                 ~~~~~~~~~~~~~^~~~~

Punt the warning to W=1 for now. Hopefully GCC will learn to
recognize which fields are in-bounds.

Acked-by: Christian Lamparter <chunkeey@gmail.com>
Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-22 17:23:15 -07:00
Jakub Kicinski
84f23fb192 wifi: brcmfmac: work around a GCC 12 -Warray-bounds warning
GCC 12 really doesn't like partial struct allocations:

drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:2202:32: warning: array subscript ‘struct brcmf_ext_join_params_le[0]’ is partly outside array bounds of ‘void[70]’ [-Warray-bounds]
 2202 |                 ext_join_params->scan_le.passive_time =
      |                                ^~

brcmfmac is trying to save 2 bytes at the end by either allocating
or not allocating a channel member. Let's keep @join_params_size
the "right" size but kmalloc() the full structure.

Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-22 17:23:06 -07:00
Jakub Kicinski
af3cdfd30c wifi: iwlwifi: use unsigned to silence a GCC 12 warning
GCC 12 says:

drivers/net/wireless/intel/iwlwifi/mvm/sta.c:1076:37: warning: array subscript -1 is below array bounds of ‘struct iwl_mvm_tid_data[9]’ [-Warray-bounds]
 1076 |                 if (mvmsta->tid_data[tid].state != IWL_AGG_OFF)
      |                     ~~~~~~~~~~~~~~~~^~~~~

Whatever, tid is a bit from for_each_set_bit(), it's clearly unsigned.

Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-22 17:23:06 -07:00
Jakub Kicinski
bd1d129daa wifi: ath6k: silence false positive -Wno-dangling-pointer warning on GCC 12
For some reason GCC 12 decided to complain about the common
pattern of queuing an object onto a list on the stack in ath6k:

    inlined from ‘ath6kl_htc_mbox_tx’ at drivers/net/wireless/ath/ath6kl/htc_mbox.c:1142:3:
include/linux/list.h:74:19: warning: storing the address of local variable ‘queue’ in ‘*&packet_15(D)->list.prev’ [-Wdangling-pointer=]
   74 |         new->prev = prev;
      |         ~~~~~~~~~~^~~~~~

Move the warning to W=1, hopefully it goes away with a compiler
update.

Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-22 17:23:05 -07:00
Jakub Kicinski
ee3db469dd wifi: rtlwifi: remove always-true condition pointed out by GCC 12
The .value is a two-dim array, not a pointer.

struct iqk_matrix_regs {
	bool iqk_done;
        long value[1][IQK_MATRIX_REG_NUM];
};

Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-22 17:23:05 -07:00
Jakub Kicinski
e950329880 wifi: ath9k: silence array-bounds warning on GCC 12
GCC 12 says:

drivers/net/wireless/ath/ath9k/mac.c: In function ‘ath9k_hw_resettxqueue’:
drivers/net/wireless/ath/ath9k/mac.c:373:22: warning: array subscript 32 is above array bounds of ‘struct ath9k_tx_queue_info[10]’ [-Warray-bounds]
  373 |         qi = &ah->txq[q];
      |               ~~~~~~~^~~

I don't know where it got the 32 from, relegate the warning to W=1+.

Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-22 17:23:05 -07:00
Jakub Kicinski
0c7ab953d1 wifi: plfxlc: remove redundant NULL-check for GCC 12
GCC is upset that we check the return value of plfxlc_usb_dev()
even tho it can't be NULL:

drivers/net/wireless/purelifi/plfxlc/usb.c: In function ‘resume’:
drivers/net/wireless/purelifi/plfxlc/usb.c:840:20: warning: the comparison will always evaluate as ‘true’ for the address of ‘dev’ will never be NULL [-Waddress]
  840 |         if (!pl || !plfxlc_usb_dev(pl))
      |                    ^

plfxlc_usb_dev() returns an address of one of the members of pl,
so it's safe to drop these checks.

Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-22 17:23:05 -07:00
Nobuhiro Iwamatsu
17155d5db7 dt-bindings: net: toshiba,visconti-dwmac: Update the common clock properties
The clock for this driver switched to the common clock controller driver.
Therefore, update common clock properties for ethernet device in the binding
document.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22 23:08:18 +01:00
Randy Dunlap
0a3ad7d323 net: dsa: restrict SMSC_LAN9303_I2C kconfig
Since kconfig 'select' does not follow dependency chains, if symbol KSA
selects KSB, then KSA should also depend on the same symbols that KSB
depends on, in order to prevent Kconfig warnings and possible build
errors.

Change NET_DSA_SMSC_LAN9303_I2C and NET_DSA_SMSC_LAN9303_MDIO so that
they are limited to VLAN_8021Q if the latter is enabled. This prevents
the Kconfig warning:

WARNING: unmet direct dependencies detected for NET_DSA_SMSC_LAN9303
  Depends on [m]: NETDEVICES [=y] && NET_DSA [=y] && (VLAN_8021Q [=m] || VLAN_8021Q [=m]=n)
  Selected by [y]:
  - NET_DSA_SMSC_LAN9303_I2C [=y] && NETDEVICES [=y] && NET_DSA [=y] && I2C [=y]

Fixes: 430065e267 ("net: dsa: lan9303: add VLAN IDs to master device")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Juergen Borleis <jbe@pengutronix.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Mans Rullgard <mans@mansr.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22 23:06:59 +01:00
Tom Rix
2a11fb1d1b net: fddi: skfp: smt: Remove extra parameters to vararg macro
cppcheck reports
[drivers/net/fddi/skfp/smt.c:750]: (warning) printf format string requires 0 parameters but 2 are given.

DB_SBAN is a vararg macro, like DB_ESSN.  Remove the extra args and the nl.

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22 23:05:56 +01:00
David S. Miller
265f58f60a Merge branch 'mt7986-support'
Jakub Kicinski says:

====================
introduce mt7986 ethernet support

Add support for mt7986-eth driver available on mt7986 soc.

Changes since v2:
- rely on GFP_KERNEL whenever possible
- define mtk_reg_map struct to introduce soc register map and avoid macros
- improve comments

Changes since v1:
- drop SRAM option
- convert ring->dma to void
- convert scratch_ring to void
- enable port4
- fix irq dts bindings
- drop gmac1 support from mt7986a-rfb dts for the moment
====================

Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22 22:24:33 +01:00
Lorenzo Bianconi
197c9e9b17 net: ethernet: mtk_eth_soc: introduce support for mt7986 chipset
Add support for mt7986-eth driver available on mt7986 soc.

Tested-by: Sam Shih <sam.shih@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22 22:24:33 +01:00
Lorenzo Bianconi
4d6426904f net: ethernet: mtk_eth_soc: convert scratch_ring pointer to void
Simplify the code converting scratch_ring pointer to void

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22 22:24:33 +01:00
Lorenzo Bianconi
7173eca8ee net: ethernet: mtk_eth_soc: convert ring dma pointer to void
Simplify the code converting {tx,rx} ring dma pointer to void

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22 22:24:33 +01:00
Lorenzo Bianconi
160d3a9b19 net: ethernet: mtk_eth_soc: introduce MTK_NETSYS_V2 support
Introduce MTK_NETSYS_V2 support. MTK_NETSYS_V2 defines 32B TX/RX DMA
descriptors.
This is a preliminary patch to add mt7986 ethernet support.

Tested-by: Sam Shih <sam.shih@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22 22:24:33 +01:00