platform/kernel/linux-starfive.git
23 months agonetfilter: flowtable_offload: add missing locking
Felix Fietkau [Mon, 21 Nov 2022 18:26:15 +0000 (19:26 +0100)]
netfilter: flowtable_offload: add missing locking

nf_flow_table_block_setup and the driver TC_SETUP_FT call can modify the flow
block cb list while they are being traversed elsewhere, causing a crash.
Add a write lock around the calls to protect readers

Fixes: c29f74e0df7a ("netfilter: nf_flow_table: hardware offload support")
Reported-by: Chad Monroe <chad.monroe@smartrg.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
23 months agonetfilter: ipset: restore allowing 64 clashing elements in hash:net,iface
Jozsef Kadlecsik [Tue, 22 Nov 2022 19:18:58 +0000 (20:18 +0100)]
netfilter: ipset: restore allowing 64 clashing elements in hash:net,iface

The commit 510841da1fcc ("netfilter: ipset: enforce documented limit to
prevent allocating huge memory") was too strict and prevented to add up to
64 clashing elements to a hash:net,iface type of set. This patch fixes the
issue and now the type behaves as documented.

Fixes: 510841da1fcc ("netfilter: ipset: enforce documented limit to prevent allocating huge memory")
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
23 months agonetfilter: ipset: regression in ip_set_hash_ip.c
Vishwanath Pai [Wed, 28 Sep 2022 18:26:50 +0000 (14:26 -0400)]
netfilter: ipset: regression in ip_set_hash_ip.c

This patch introduced a regression: commit 48596a8ddc46 ("netfilter:
ipset: Fix adding an IPv4 range containing more than 2^31 addresses")

The variable e.ip is passed to adtfn() function which finally adds the
ip address to the set. The patch above refactored the for loop and moved
e.ip = htonl(ip) to the end of the for loop.

What this means is that if the value of "ip" changes between the first
assignement of e.ip and the forloop, then e.ip is pointing to a
different ip address than "ip".

Test case:
$ ipset create jdtest_tmp hash:ip family inet hashsize 2048 maxelem 100000
$ ipset add jdtest_tmp 10.0.1.1/31
ipset v6.21.1: Element cannot be added to the set: it's already added

The value of ip gets updated inside the  "else if (tb[IPSET_ATTR_CIDR])"
block but e.ip is still pointing to the old value.

Fixes: 48596a8ddc46 ("netfilter: ipset: Fix adding an IPv4 range containing more than 2^31 addresses")
Reviewed-by: Joshua Hunt <johunt@akamai.com>
Signed-off-by: Vishwanath Pai <vpai@akamai.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
23 months agoocteontx2-af: cn10k: mcs: Fix copy and paste bug in mcs_bbe_intr_handler()
Dan Carpenter [Fri, 18 Nov 2022 15:07:54 +0000 (18:07 +0300)]
octeontx2-af: cn10k: mcs: Fix copy and paste bug in mcs_bbe_intr_handler()

This code accidentally uses the RX macro twice instead of the RX and TX.

Fixes: 6c635f78c474 ("octeontx2-af: cn10k: mcs: Handle MCS block interrupts")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoipv4/fib: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
Kees Cook [Fri, 18 Nov 2022 04:21:52 +0000 (20:21 -0800)]
ipv4/fib: Replace zero-length array with DECLARE_FLEX_ARRAY() helper

Zero-length arrays are deprecated[1] and are being replaced with
flexible array members in support of the ongoing efforts to tighten the
FORTIFY_SOURCE routines on memcpy(), correctly instrument array indexing
with UBSAN_BOUNDS, and to globally enable -fstrict-flex-arrays=3.

Replace zero-length array with flexible-array member in struct key_vector.

This results in no differences in binary output.

[1] https://github.com/KSPP/linux/issues/78

Cc: Jakub Kicinski <kuba@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: David Ahern <dsahern@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoselftests/net: Find nettest in current directory
Daniel Díaz [Fri, 18 Nov 2022 03:44:21 +0000 (21:44 -0600)]
selftests/net: Find nettest in current directory

The `nettest` binary, built from `selftests/net/nettest.c`,
was expected to be found in the path during test execution of
`fcnal-test.sh` and `pmtu.sh`, leading to tests getting
skipped when the binary is not installed in the system, as can
be seen in these logs found in the wild [1]:

  # TEST: vti4: PMTU exceptions                                         [SKIP]
  [  350.600250] IPv6: ADDRCONF(NETDEV_CHANGE): veth_b: link becomes ready
  [  350.607421] IPv6: ADDRCONF(NETDEV_CHANGE): veth_a: link becomes ready
  # 'nettest' command not found; skipping tests
  #   xfrm6udp not supported
  # TEST: vti6: PMTU exceptions (ESP-in-UDP)                            [SKIP]
  [  351.605102] IPv6: ADDRCONF(NETDEV_CHANGE): veth_b: link becomes ready
  [  351.612243] IPv6: ADDRCONF(NETDEV_CHANGE): veth_a: link becomes ready
  # 'nettest' command not found; skipping tests
  #   xfrm4udp not supported

The `unicast_extensions.sh` tests also rely on `nettest`, but
it runs fine there because it looks for the binary in the
current working directory [2]:

The same mechanism that works for the Unicast extensions tests
is here copied over to the PMTU and functional tests.

[1] https://lkft.validation.linaro.org/scheduler/job/5839508#L6221
[2] https://lkft.validation.linaro.org/scheduler/job/5839508#L7958

Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
David S. Miller [Mon, 21 Nov 2022 11:28:07 +0000 (11:28 +0000)]
Merge git://git./linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
The following patchset contains late Netfilter fixes for net:

1) Use READ_ONCE()/WRITE_ONCE() to update ct->mark, from Daniel Xu.
   Not reported by syzbot, but I presume KASAN would trigger post
   a splat on this. This is a rather old issue, predating git history.

2) Do not set up extensions for set element with end interval flag
   set on. This leads to bogusly skipping this elements as expired
   when listing the set/map to userspace as well as increasing
   memory consumpton when stateful expressions are used. This issue
   has been present since 4.18, when timeout support for rbtree set
   was added.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: microchip: sparx5: Fix return value in sparx5_tc_setup_qdisc_ets()
Lu Wei [Thu, 17 Nov 2022 15:07:22 +0000 (23:07 +0800)]
net: microchip: sparx5: Fix return value in sparx5_tc_setup_qdisc_ets()

Function sparx5_tc_setup_qdisc_ets() always returns negative value
because it return -EOPNOTSUPP in the end. This patch returns the
rersult of sparx5_tc_ets_add() and sparx5_tc_ets_del() directly.

Fixes: 211225428d65 ("net: microchip: sparx5: add support for offloading ets qdisc")
Signed-off-by: Lu Wei <luwei32@huawei.com>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge branch 'nfc-leaks'
David S. Miller [Mon, 21 Nov 2022 08:31:53 +0000 (08:31 +0000)]
Merge branch 'nfc-leaks'

Shang XiaoJing says:

====================
nfc: Fix potential memory leak of skb

There are still somewhere maybe leak the skb, fix the memleaks by adding
fail path.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonfc: s3fwrn5: Fix potential memory leak in s3fwrn5_nci_send()
Shang XiaoJing [Thu, 17 Nov 2022 11:37:14 +0000 (19:37 +0800)]
nfc: s3fwrn5: Fix potential memory leak in s3fwrn5_nci_send()

s3fwrn5_nci_send() won't free the skb when it failed for the check
before s3fwrn5_write(). As the result, the skb will memleak. Free the
skb when the check failed.

Fixes: c04c674fadeb ("nfc: s3fwrn5: Add driver for Samsung S3FWRN5 NFC Chip")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Suggested-by: Pavel Machek <pavel@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonfc: nxp-nci: Fix potential memory leak in nxp_nci_send()
Shang XiaoJing [Thu, 17 Nov 2022 11:37:13 +0000 (19:37 +0800)]
nfc: nxp-nci: Fix potential memory leak in nxp_nci_send()

nxp_nci_send() won't free the skb when it failed for the check before
write(). As the result, the skb will memleak. Free the skb when the
check failed.

Fixes: dece45855a8b ("NFC: nxp-nci: Add support for NXP NCI chips")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Suggested-by: Pavel Machek <pavel@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send()
Shang XiaoJing [Thu, 17 Nov 2022 11:37:12 +0000 (19:37 +0800)]
nfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send()

nfcmrvl_i2c_nci_send() will be called by nfcmrvl_nci_send(), and skb
should be freed in nfcmrvl_i2c_nci_send(). However, nfcmrvl_nci_send()
won't free the skb when it failed for the test_bit(). Free the skb when
test_bit() failed.

Fixes: b5b3e23e4cac ("NFC: nfcmrvl: add i2c driver")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Suggested-by: Pavel Machek <pavel@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agomacsec: Fix invalid error code set
YueHaibing [Fri, 18 Nov 2022 01:12:49 +0000 (09:12 +0800)]
macsec: Fix invalid error code set

'ret' is defined twice in macsec_changelink(), when it is set in macsec_is_offloaded
case, it will be invalid before return.

Fixes: 3cf3227a21d1 ("net: macsec: hardware offloading infrastructure")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Saeed Mahameed <saeed@kernel.org>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Link: https://lore.kernel.org/r/20221118011249.48112-1-yuehaibing@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agobonding: fix ICMPv6 header handling when receiving IPv6 messages
Hangbin Liu [Fri, 18 Nov 2022 03:43:53 +0000 (11:43 +0800)]
bonding: fix ICMPv6 header handling when receiving IPv6 messages

Currently, we get icmp6hdr via function icmp6_hdr(), which needs the skb
transport header to be set first. But there is no rule to ask driver set
transport header before netif_receive_skb() and bond_handle_frame(). So
we will not able to get correct icmp6hdr on some drivers.

Fix this by using skb_header_pointer to get the IPv6 and ICMPV6 headers.

Reported-by: Liang Li <liali@redhat.com>
Fixes: 4e24be018eb9 ("bonding: add new parameter ns_targets")
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20221118034353.1736727-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMerge branch 'nfp-fixes-for-v6-1'
Jakub Kicinski [Sat, 19 Nov 2022 03:41:24 +0000 (19:41 -0800)]
Merge branch 'nfp-fixes-for-v6-1'

Simon Horman says:

====================
nfp: fixes for v6.1

 - Ensure that information displayed by "devlink port show"
           reflects the number of lanes available to be split.
 - Avoid NULL dereference in ethtool test code.
====================

Link: https://lore.kernel.org/r/20221117153744.688595-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonfp: add port from netdev validation for EEPROM access
Jaco Coetzee [Thu, 17 Nov 2022 15:37:44 +0000 (16:37 +0100)]
nfp: add port from netdev validation for EEPROM access

Setting of the port flag `NFP_PORT_CHANGED`, introduced
to ensure the correct reading of EEPROM data, causes a
fatal kernel NULL pointer dereference in cases where
the target netdev type cannot be determined.

Add validation of port struct pointer before attempting
to set the `NFP_PORT_CHANGED` flag. Return that operation
is not supported if the netdev type cannot be determined.

Fixes: 4ae97cae07e1 ("nfp: ethtool: fix the display error of `ethtool -m DEVNAME`")
Signed-off-by: Jaco Coetzee <jaco.coetzee@corigine.com>
Reviewed-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonfp: fill splittable of devlink_port_attrs correctly
Diana Wang [Thu, 17 Nov 2022 15:37:43 +0000 (16:37 +0100)]
nfp: fill splittable of devlink_port_attrs correctly

The error is reflected in that it shows wrong splittable status of
port when executing "devlink port show".
The reason which leads the error is that the assigned operation of
splittable is just a simple negation operation of split and it does
not consider port lanes quantity. A splittable port should have
several lanes that can be split(lanes quantity > 1).
If without the judgement, it will show wrong message for some
firmware, such as 2x25G, 2x10G.

Fixes: a0f49b548652 ("devlink: Add a new devlink port split ability attribute and pass to netlink")
Signed-off-by: Diana Wang <na.wang@corigine.com>
Reviewed-by: Louis Peens <louis.peens@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet: pch_gbe: fix pci device refcount leak while module exiting
Yang Yingliang [Thu, 17 Nov 2022 13:51:48 +0000 (21:51 +0800)]
net: pch_gbe: fix pci device refcount leak while module exiting

As comment of pci_get_domain_bus_and_slot() says, it returns
a pci device with refcount increment, when finish using it,
the caller must decrement the reference count by calling
pci_dev_put().

In pch_gbe_probe(), pci_get_domain_bus_and_slot() is called,
so in error path in probe() and remove() function, pci_dev_put()
should be called to avoid refcount leak. Compile tested only.

Fixes: 1a0bdadb4e36 ("net/pch_gbe: supports eg20t ptp clock")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221117135148.301014-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoocteontx2-af: debugsfs: fix pci device refcount leak
Yang Yingliang [Thu, 17 Nov 2022 12:46:58 +0000 (20:46 +0800)]
octeontx2-af: debugsfs: fix pci device refcount leak

As comment of pci_get_domain_bus_and_slot() says, it returns
a pci device with refcount increment, when finish using it,
the caller must decrement the reference count by calling
pci_dev_put().

So before returning from rvu_dbg_rvu_pf_cgx_map_display() or
cgx_print_dmac_flt(), pci_dev_put() is called to avoid refcount
leak.

Fixes: dbc52debf95f ("octeontx2-af: Debugfs support for DMAC filters")
Fixes: e2fb37303865 ("octeontx2-af: Display CGX, NIX and PF map in debugfs.")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221117124658.162409-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet/qla3xxx: fix potential memleak in ql3xxx_send()
Zhang Changzhong [Thu, 17 Nov 2022 08:50:38 +0000 (16:50 +0800)]
net/qla3xxx: fix potential memleak in ql3xxx_send()

The ql3xxx_send() returns NETDEV_TX_OK without freeing skb in error
handling case, add dev_kfree_skb_any() to fix it.

Fixes: bd36b0ac5d06 ("qla3xxx: Add support for Qlogic 4032 chip.")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Link: https://lore.kernel.org/r/1668675039-21138-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet: mvpp2: fix possible invalid pointer dereference
Hui Tang [Thu, 17 Nov 2022 08:40:32 +0000 (16:40 +0800)]
net: mvpp2: fix possible invalid pointer dereference

It will cause invalid pointer dereference to priv->cm3_base behind,
if PTR_ERR(priv->cm3_base) in mvpp2_get_sram().

Fixes: e54ad1e01c00 ("net: mvpp2: add CM3 SRAM memory map")
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Link: https://lore.kernel.org/r/20221117084032.101144-1-tanghui20@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet/mlx4: Check retval of mlx4_bitmap_init
Peter Kosyh [Thu, 17 Nov 2022 15:28:06 +0000 (18:28 +0300)]
net/mlx4: Check retval of mlx4_bitmap_init

If mlx4_bitmap_init fails, mlx4_bitmap_alloc_range will dereference
the NULL pointer (bitmap->table).

Make sure, that mlx4_bitmap_alloc_range called in no error case.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: d57febe1a478 ("net/mlx4: Add A0 hybrid steering")
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Peter Kosyh <pkosyh@yandex.ru>
Link: https://lore.kernel.org/r/20221117152806.278072-1-pkosyh@yandex.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet: ethernet: mtk_eth_soc: fix error handling in mtk_open()
Liu Jian [Thu, 17 Nov 2022 11:13:56 +0000 (19:13 +0800)]
net: ethernet: mtk_eth_soc: fix error handling in mtk_open()

If mtk_start_dma() fails, invoke phylink_disconnect_phy() to perform
cleanup. phylink_disconnect_phy() contains the put_device action. If
phylink_disconnect_phy is not performed, the Kref of netdev will leak.

Fixes: b8fc9f30821e ("net: ethernet: mediatek: Add basic PHYLINK support")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20221117111356.161547-1-liujian56@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonetfilter: nf_tables: do not set up extensions for end interval
Pablo Neira Ayuso [Mon, 14 Nov 2022 10:31:54 +0000 (11:31 +0100)]
netfilter: nf_tables: do not set up extensions for end interval

Elements with an end interval flag set on do not store extensions. The
global set definition is currently setting on the timeout and stateful
expression for end interval elements.

This leads to skipping end interval elements from the set->ops->walk()
path as the expired check bogusly reports true.

Moreover, do not set up stateful expressions for elements with end
interval flag set on since this is never used.

Fixes: 65038428b2c6 ("netfilter: nf_tables: allow to specify stateful expression in set definition")
Fixes: 8d8540c4f5e0 ("netfilter: nft_set_rbtree: add timeout support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
23 months agonetfilter: conntrack: Fix data-races around ct mark
Daniel Xu [Wed, 9 Nov 2022 19:39:07 +0000 (12:39 -0700)]
netfilter: conntrack: Fix data-races around ct mark

nf_conn:mark can be read from and written to in parallel. Use
READ_ONCE()/WRITE_ONCE() for reads and writes to prevent unwanted
compiler optimizations.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
23 months agonet: pch_gbe: fix potential memleak in pch_gbe_tx_queue()
Wang Hai [Thu, 17 Nov 2022 06:55:27 +0000 (14:55 +0800)]
net: pch_gbe: fix potential memleak in pch_gbe_tx_queue()

In pch_gbe_xmit_frame(), NETDEV_TX_OK will be returned whether
pch_gbe_tx_queue() sends data successfully or not, so pch_gbe_tx_queue()
needs to free skb before returning. But pch_gbe_tx_queue() returns without
freeing skb in case of dma_map_single() fails. Add dev_kfree_skb_any()
to fix it.

Fixes: 77555ee72282 ("net: Add Gigabit Ethernet driver of Topcliff PCH")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonfc/nci: fix race with opening and closing
Lin Ma [Wed, 16 Nov 2022 13:02:49 +0000 (21:02 +0800)]
nfc/nci: fix race with opening and closing

Previously we leverage NCI_UNREG and the lock inside nci_close_device to
prevent the race condition between opening a device and closing a
device. However, it still has problem because a failed opening command
will erase the NCI_UNREG flag and allow another opening command to
bypass the status checking.

This fix corrects that by making sure the NCI_UNREG is held.

Reported-by: syzbot+43475bf3cfbd6e41f5b7@syzkaller.appspotmail.com
Fixes: 48b71a9e66c2 ("NFC: add NCI_UNREG flag to eliminate the race")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: dsa: sja1105: disallow C45 transactions on the BASE-TX MDIO bus
Vladimir Oltean [Wed, 16 Nov 2022 10:06:53 +0000 (12:06 +0200)]
net: dsa: sja1105: disallow C45 transactions on the BASE-TX MDIO bus

You'd think people know that the internal 100BASE-TX PHY on the SJA1110
responds only to clause 22 MDIO transactions, but they don't :)

When a clause 45 transaction is attempted, sja1105_base_tx_mdio_read()
and sja1105_base_tx_mdio_write() don't expect "reg" to contain bit 30
set (MII_ADDR_C45) and pack this value into the SPI transaction buffer.

But the field in the SPI buffer has a width smaller than 30 bits, so we
see this confusing message from the packing() API rather than a proper
rejection of C45 transactions:

Call trace:
 dump_stack+0x1c/0x38
 sja1105_pack+0xbc/0xc0 [sja1105]
 sja1105_xfer+0x114/0x2b0 [sja1105]
 sja1105_xfer_u32+0x44/0xf4 [sja1105]
 sja1105_base_tx_mdio_read+0x44/0x7c [sja1105]
 mdiobus_read+0x44/0x80
 get_phy_c45_ids+0x70/0x234
 get_phy_device+0x68/0x15c
 fwnode_mdiobus_register_phy+0x74/0x240
 of_mdiobus_register+0x13c/0x380
 sja1105_mdiobus_register+0x368/0x490 [sja1105]
 sja1105_setup+0x94/0x119c [sja1105]
Cannot store 401d2405 inside bits 24-4 (would truncate)

Fixes: 5a8f09748ee7 ("net: dsa: sja1105: register the MDIO buses for 100base-T1 and 100base-TX")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agorxrpc: Fix race between conn bundle lookup and bundle removal [ZDI-CAN-15975]
David Howells [Wed, 16 Nov 2022 14:02:28 +0000 (14:02 +0000)]
rxrpc: Fix race between conn bundle lookup and bundle removal [ZDI-CAN-15975]

After rxrpc_unbundle_conn() has removed a connection from a bundle, it
checks to see if there are any conns with available channels and, if not,
removes and attempts to destroy the bundle.

Whilst it does check after grabbing client_bundles_lock that there are no
connections attached, this races with rxrpc_look_up_bundle() retrieving the
bundle, but not attaching a connection for the connection to be attached
later.

There is therefore a window in which the bundle can get destroyed before we
manage to attach a new connection to it.

Fix this by adding an "active" counter to struct rxrpc_bundle:

 (1) rxrpc_connect_call() obtains an active count by prepping/looking up a
     bundle and ditches it before returning.

 (2) If, during rxrpc_connect_call(), a connection is added to the bundle,
     this obtains an active count, which is held until the connection is
     discarded.

 (3) rxrpc_deactivate_bundle() is created to drop an active count on a
     bundle and destroy it when the active count reaches 0.  The active
     count is checked inside client_bundles_lock() to prevent a race with
     rxrpc_look_up_bundle().

 (4) rxrpc_unbundle_conn() then calls rxrpc_deactivate_bundle().

Fixes: 245500d853e9 ("rxrpc: Rewrite the client connection manager")
Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-15975
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: zdi-disclosures@trendmicro.com
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoselftests/net: fix missing xdp_dummy
Wang Yufen [Thu, 17 Nov 2022 02:45:03 +0000 (10:45 +0800)]
selftests/net: fix missing xdp_dummy

After commit afef88e65554 ("selftests/bpf: Store BPF object files with
.bpf.o extension"), we should use xdp_dummy.bpf.o instade of xdp_dummy.o.

In addition, use the BPF_FILE variable to save the BPF object file name,
which can be better identified and modified.

Fixes: afef88e65554 ("selftests/bpf: Store BPF object files with .bpf.o extension")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Cc: Daniel Müller <deso@posteo.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoipvlan: hold lower dev to avoid possible use-after-free
Mahesh Bandewar [Wed, 16 Nov 2022 01:19:14 +0000 (17:19 -0800)]
ipvlan: hold lower dev to avoid possible use-after-free

Recently syzkaller discovered the issue of disappearing lower
device (NETDEV_UNREGISTER) while the virtual device (like
macvlan) is still having it as a lower device. So it's just
a matter of time similar discovery will be made for IPvlan
device setup. So fixing it preemptively. Also while at it,
add a refcount tracker.

Fixes: 2ad7bf363841 ("ipvlan: Initial check-in of the IPVLAN driver.")
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: neigh: decrement the family specific qlen
Thomas Zeitlhofer [Tue, 15 Nov 2022 22:09:41 +0000 (23:09 +0100)]
net: neigh: decrement the family specific qlen

Commit 0ff4eb3d5ebb ("neighbour: make proxy_queue.qlen limit
per-device") introduced the length counter qlen in struct neigh_parms.
There are separate neigh_parms instances for IPv4/ARP and IPv6/ND, and
while the family specific qlen is incremented in pneigh_enqueue(), the
mentioned commit decrements always the IPv4/ARP specific qlen,
regardless of the currently processed family, in pneigh_queue_purge()
and neigh_proxy_process().

As a result, with IPv6/ND, the family specific qlen is only incremented
(and never decremented) until it exceeds PROXY_QLEN, and then, according
to the check in pneigh_enqueue(), neighbor solicitations are not
answered anymore. As an example, this is noted when using the
subnet-router anycast address to access a Linux router. After a certain
amount of time (in the observed case, qlen exceeded PROXY_QLEN after two
days), the Linux router stops answering neighbor solicitations for its
subnet-router anycast address and effectively becomes unreachable.

Another result with IPv6/ND is that the IPv4/ARP specific qlen is
decremented more often than incremented. This leads to negative qlen
values, as a signed integer has been used for the length counter qlen,
and potentially to an integer overflow.

Fix this by introducing the helper function neigh_parms_qlen_dec(),
which decrements the family specific qlen. Thereby, make use of the
existing helper function neigh_get_dev_parms_rcu(), whose definition
therefore needs to be placed earlier in neighbour.c. Take the family
member from struct neigh_table to determine the currently processed
family and appropriately call neigh_parms_qlen_dec() from
pneigh_queue_purge() and neigh_proxy_process().

Additionally, use an unsigned integer for the length counter qlen.

Fixes: 0ff4eb3d5ebb ("neighbour: make proxy_queue.qlen limit per-device")
Signed-off-by: Thomas Zeitlhofer <thomas.zeitlhofer+lkml@ze-it.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: liquidio: simplify if expression
Leon Romanovsky [Tue, 15 Nov 2022 17:34:39 +0000 (19:34 +0200)]
net: liquidio: simplify if expression

Fix the warning reported by kbuild:

cocci warnings: (new ones prefixed by >>)
>> drivers/net/ethernet/cavium/liquidio/lio_main.c:1797:54-56: WARNING !A || A && B is equivalent to !A || B
   drivers/net/ethernet/cavium/liquidio/lio_main.c:1827:54-56: WARNING !A || A && B is equivalent to !A || B

Fixes: 8979f428a4af ("net: liquidio: release resources when liquidio driver open failed")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Saeed Mahameed <saeed@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge branch 'mptcp-selftests-fix-timeouts-and-test-isolation'
Jakub Kicinski [Fri, 18 Nov 2022 05:47:25 +0000 (21:47 -0800)]
Merge branch 'mptcp-selftests-fix-timeouts-and-test-isolation'

Mat Martineau says:

====================
mptcp: selftests: Fix timeouts and test isolation

Patches 1 and 3 adjust test timeouts to reduce false negatives on slow
machines.

Patch 2 improves test isolation by running the mptcp_sockopt test in its
own net namespace.
====================

Link: https://lore.kernel.org/r/20221115221046.20370-1-mathew.j.martineau@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoselftests: mptcp: fix mibit vs mbit mix up
Matthieu Baerts [Tue, 15 Nov 2022 22:10:46 +0000 (14:10 -0800)]
selftests: mptcp: fix mibit vs mbit mix up

The estimated time was supposing the rate was expressed in mibit
(bit * 1024^2) but it is in mbit (bit * 1000^2).

This makes the threshold higher but in a more realistic way to avoid
false positives reported by CI instances.

Before this patch, the thresholds were at 7561/4005ms and now they are
at 7906/4178ms.

While at it, also fix a typo in the linked comment, spotted by Mat.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/310
Fixes: 1a418cb8e888 ("mptcp: simult flow self-tests")
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoselftests: mptcp: run mptcp_sockopt from a new netns
Matthieu Baerts [Tue, 15 Nov 2022 22:10:45 +0000 (14:10 -0800)]
selftests: mptcp: run mptcp_sockopt from a new netns

Not running it from a new netns causes issues if some MPTCP settings are
modified, e.g. if MPTCP is disabled from the sysctl knob, if multiple
addresses are available and added to the MPTCP path-manager, etc.

In these cases, the created connection will not behave as expected, e.g.
unable to create an MPTCP socket, more than one subflow is seen, etc.

A new "sandbox" net namespace is now created and used to run
mptcp_sockopt from this controlled environment.

Fixes: ce9979129a0b ("selftests: mptcp: add mptcp getsockopt test cases")
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoselftests: mptcp: gives slow test-case more time
Paolo Abeni [Tue, 15 Nov 2022 22:10:44 +0000 (14:10 -0800)]
selftests: mptcp: gives slow test-case more time

On slow or busy VM, some test-cases still fail because the
data transfer completes before the endpoint manipulation
actually took effect.

Address the issue by artificially increasing the runtime for
the relevant test-cases.

Fixes: ef360019db40 ("selftests: mptcp: signal addresses testcases")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/309
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMerge tag 'net-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 17 Nov 2022 16:58:36 +0000 (08:58 -0800)]
Merge tag 'net-6.1-rc6' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf.

  Current release - regressions:

   - tls: fix memory leak in tls_enc_skb() and tls_sw_fallback_init()

  Previous releases - regressions:

   - bridge: fix memory leaks when changing VLAN protocol

   - dsa: make dsa_master_ioctl() see through port_hwtstamp_get() shims

   - dsa: don't leak tagger-owned storage on switch driver unbind

   - eth: mlxsw: avoid warnings when not offloaded FDB entry with IPv6
     is removed

   - eth: stmmac: ensure tx function is not running in
     stmmac_xdp_release()

   - eth: hns3: fix return value check bug of rx copybreak

  Previous releases - always broken:

   - kcm: close race conditions on sk_receive_queue

   - bpf: fix alignment problem in bpf_prog_test_run_skb()

   - bpf: fix writing offset in case of fault in
     strncpy_from_kernel_nofault

   - eth: macvlan: use built-in RCU list checking

   - eth: marvell: add sleep time after enabling the loopback bit

   - eth: octeon_ep: fix potential memory leak in octep_device_setup()

  Misc:

   - tcp: configurable source port perturb table size

   - bpf: Convert BPF_DISPATCHER to use static_call() (not ftrace)"

* tag 'net-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits)
  net: use struct_group to copy ip/ipv6 header addresses
  net: usb: smsc95xx: fix external PHY reset
  net: usb: qmi_wwan: add Telit 0x103a composition
  netdevsim: Fix memory leak of nsim_dev->fa_cookie
  tcp: configurable source port perturb table size
  l2tp: Serialize access to sk_user_data with sk_callback_lock
  net: thunderbolt: Fix error handling in tbnet_init()
  net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()
  net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()
  net: dsa: don't leak tagger-owned storage on switch driver unbind
  net/x25: Fix skb leak in x25_lapb_receive_frame()
  net: ag71xx: call phylink_disconnect_phy if ag71xx_hw_enable() fail in ag71xx_open()
  bridge: switchdev: Fix memory leaks when changing VLAN protocol
  net: hns3: fix setting incorrect phy link ksettings for firmware in resetting process
  net: hns3: fix return value check bug of rx copybreak
  net: hns3: fix incorrect hw rss hash type of rx packet
  net: phy: marvell: add sleep time after enabling the loopback bit
  net: ena: Fix error handling in ena_init()
  kcm: close race conditions on sk_receive_queue
  net: ionic: Fix error handling in ionic_init_module()
  ...

23 months agonet: use struct_group to copy ip/ipv6 header addresses
Hangbin Liu [Tue, 15 Nov 2022 14:24:00 +0000 (22:24 +0800)]
net: use struct_group to copy ip/ipv6 header addresses

kernel test robot reported warnings when build bonding module with
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/bonding/:

                 from ../drivers/net/bonding/bond_main.c:35:
In function ‘fortify_memcpy_chk’,
    inlined from ‘iph_to_flow_copy_v4addrs’ at ../include/net/ip.h:566:2,
    inlined from ‘bond_flow_ip’ at ../drivers/net/bonding/bond_main.c:3984:3:
../include/linux/fortify-string.h:413:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of f
ield (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
  413 |                         __read_overflow2_field(q_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘fortify_memcpy_chk’,
    inlined from ‘iph_to_flow_copy_v6addrs’ at ../include/net/ipv6.h:900:2,
    inlined from ‘bond_flow_ip’ at ../drivers/net/bonding/bond_main.c:3994:3:
../include/linux/fortify-string.h:413:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of f
ield (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
  413 |                         __read_overflow2_field(q_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This is because we try to copy the whole ip/ip6 address to the flow_key,
while we only point the to ip/ip6 saddr. Note that since these are UAPI
headers, __struct_group() is used to avoid the compiler warnings.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: c3f8324188fa ("net: Add full IPv6 addresses to flow_keys")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20221115142400.1204786-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonet: usb: smsc95xx: fix external PHY reset
Alexandru Tachici [Tue, 15 Nov 2022 11:44:34 +0000 (13:44 +0200)]
net: usb: smsc95xx: fix external PHY reset

An external PHY needs settling time after power up or reset.
In the bind() function an mdio bus is registered. If at this point
the external PHY is still initialising, no valid PHY ID will be
read and on phy_find_first() the bind() function will fail.

If an external PHY is present, wait the maximum time specified
in 802.3 45.2.7.1.1.

Fixes: 05b35e7eb9a1 ("smsc95xx: add phylib support")
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20221115114434.9991-2-alexandru.tachici@analog.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonet: usb: qmi_wwan: add Telit 0x103a composition
Enrico Sau [Tue, 15 Nov 2022 10:58:59 +0000 (11:58 +0100)]
net: usb: qmi_wwan: add Telit 0x103a composition

Add the following Telit LE910C4-WWX composition:

0x103a: rmnet

Signed-off-by: Enrico Sau <enrico.sau@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Link: https://lore.kernel.org/r/20221115105859.14324-1-enrico.sau@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonetdevsim: Fix memory leak of nsim_dev->fa_cookie
Wang Yufen [Tue, 15 Nov 2022 09:30:25 +0000 (17:30 +0800)]
netdevsim: Fix memory leak of nsim_dev->fa_cookie

kmemleak reports this issue:

unreferenced object 0xffff8881bac872d0 (size 8):
  comm "sh", pid 58603, jiffies 4481524462 (age 68.065s)
  hex dump (first 8 bytes):
    04 00 00 00 de ad be ef                          ........
  backtrace:
    [<00000000c80b8577>] __kmalloc+0x49/0x150
    [<000000005292b8c6>] nsim_dev_trap_fa_cookie_write+0xc1/0x210 [netdevsim]
    [<0000000093d78e77>] full_proxy_write+0xf3/0x180
    [<000000005a662c16>] vfs_write+0x1c5/0xaf0
    [<000000007aabf84a>] ksys_write+0xed/0x1c0
    [<000000005f1d2e47>] do_syscall_64+0x3b/0x90
    [<000000006001c6ec>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

The issue occurs in the following scenarios:

nsim_dev_trap_fa_cookie_write()
  kmalloc() fa_cookie
  nsim_dev->fa_cookie = fa_cookie
..
nsim_drv_remove()

The fa_cookie allocked in nsim_dev_trap_fa_cookie_write() is not freed. To
fix, add kfree(nsim_dev->fa_cookie) to nsim_drv_remove().

Fixes: d3cbb907ae57 ("netdevsim: add ACL trap reporting cookie as a metadata")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Link: https://lore.kernel.org/r/1668504625-14698-1-git-send-email-wangyufen@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMerge tag 'for-linus-6.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 16 Nov 2022 18:49:06 +0000 (10:49 -0800)]
Merge tag 'for-linus-6.1-rc6-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Two trivial cleanups, and three simple fixes"

* tag 'for-linus-6.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/platform-pci: use define instead of literal number
  xen/platform-pci: add missing free_irq() in error path
  xen-pciback: Allow setting PCI_MSIX_FLAGS_MASKALL too
  xen/pcpu: fix possible memory leak in register_pcpu()
  x86/xen: Use kstrtobool() instead of strtobool()

23 months agoMerge tag 'pinctrl-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Wed, 16 Nov 2022 18:40:00 +0000 (10:40 -0800)]
Merge tag 'pinctrl-v6.1-4' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Aere is a hopefully final round of pin control fixes. Nothing special,
  driver fixes and we caught a potential NULL pointer exception.

   - Fix a potential NULL dereference in the core!

   - Fix all pin mux routes in the Rockchop PX30 driver

   - Fix the UFS pins in the Qualcomm SC8280XP driver

   - Fix bias disabling in the Mediatek driver

   - Fix debounce time settings in the Mediatek driver"

* tag 'pinctrl-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: mediatek: Export debounce time tables
  pinctrl: mediatek: Fix EINT pins input debounce time configuration
  pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map
  pinctrl: mediatek: common-v2: Fix bias-disable for PULL_PU_PD_RSEL_TYPE
  pinctrl: qcom: sc8280xp: Rectify UFS reset pins
  pinctrl: rockchip: list all pins in a possible mux route for PX30

23 months agoMerge tag 'platform-drivers-x86-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 16 Nov 2022 18:36:13 +0000 (10:36 -0800)]
Merge tag 'platform-drivers-x86-v6.1-4' of git://git./linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:

 - Surface Pro 9 and Surface Laptop 5 kbd, battery, etc support (this
   is just a few hw-id additions)

 - A couple of other hw-id / DMI-quirk additions

 - A few small bug fixes + 1 build fix

* tag 'platform-drivers-x86-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: ideapad-laptop: Add module parameters to match DMI quirk tables
  platform/x86: ideapad-laptop: Fix interrupt storm on fn-lock toggle on some Yoga laptops
  platform/x86: hp-wmi: Ignore Smart Experience App event
  platform/surface: aggregator_registry: Add support for Surface Laptop 5
  platform/surface: aggregator_registry: Add support for Surface Pro 9
  platform/surface: aggregator: Do not check for repeated unsequenced packets
  platform/x86: acer-wmi: Enable SW_TABLET_MODE on Switch V 10 (SW5-017)
  platform/x86: asus-wmi: add missing pci_dev_put() in asus_wmi_set_xusb2pr()
  platform/x86/intel: pmc: Don't unconditionally attach Intel PMC when virtualized
  platform/x86: thinkpad_acpi: Enable s2idle quirk for 21A1 machine type
  platform/x86/amd: pmc: Add new ACPI ID AMDI0009
  platform/x86/amd: pmc: Remove more CONFIG_DEBUG_FS checks

23 months agotcp: configurable source port perturb table size
Gleb Mazovetskiy [Mon, 14 Nov 2022 22:56:16 +0000 (22:56 +0000)]
tcp: configurable source port perturb table size

On embedded systems with little memory and no relevant
security concerns, it is beneficial to reduce the size
of the table.

Reducing the size from 2^16 to 2^8 saves 255 KiB
of kernel RAM.

Makes the table size configurable as an expert option.

The size was previously increased from 2^8 to 2^16
in commit 4c2c8f03a5ab ("tcp: increase source port perturb table to
2^16").

Signed-off-by: Gleb Mazovetskiy <glex.spb@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agol2tp: Serialize access to sk_user_data with sk_callback_lock
Jakub Sitnicki [Mon, 14 Nov 2022 19:16:19 +0000 (20:16 +0100)]
l2tp: Serialize access to sk_user_data with sk_callback_lock

sk->sk_user_data has multiple users, which are not compatible with each
other. Writers must synchronize by grabbing the sk->sk_callback_lock.

l2tp currently fails to grab the lock when modifying the underlying tunnel
socket fields. Fix it by adding appropriate locking.

We err on the side of safety and grab the sk_callback_lock also inside the
sk_destruct callback overridden by l2tp, even though there should be no
refs allowing access to the sock at the time when sk_destruct gets called.

v4:
- serialize write to sk_user_data in l2tp sk_destruct

v3:
- switch from sock lock to sk_callback_lock
- document write-protection for sk_user_data

v2:
- update Fixes to point to origin of the bug
- use real names in Reported/Tested-by tags

Cc: Tom Parkin <tparkin@katalix.com>
Fixes: 3557baabf280 ("[L2TP]: PPP over L2TP driver core")
Reported-by: Haowei Yan <g1042620637@gmail.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: thunderbolt: Fix error handling in tbnet_init()
Yuan Can [Mon, 14 Nov 2022 14:22:25 +0000 (14:22 +0000)]
net: thunderbolt: Fix error handling in tbnet_init()

A problem about insmod thunderbolt-net failed is triggered with following
log given while lsmod does not show thunderbolt_net:

 insmod: ERROR: could not insert module thunderbolt-net.ko: File exists

The reason is that tbnet_init() returns tb_register_service_driver()
directly without checking its return value, if tb_register_service_driver()
failed, it returns without removing property directory, resulting the
property directory can never be created later.

 tbnet_init()
   tb_register_property_dir() # register property directory
   tb_register_service_driver()
     driver_register()
       bus_add_driver()
         priv = kzalloc(...) # OOM happened
   # return without remove property directory

Fix by remove property directory when tb_register_service_driver() returns
error.

Fixes: e69b6c02b4c3 ("net: Add support for networking over Thunderbolt cable")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge branch 'microchip-fixes'
David S. Miller [Wed, 16 Nov 2022 09:10:29 +0000 (09:10 +0000)]
Merge branch 'microchip-fixes'

Shang XiaoJing says:

====================
net: microchip: Fix potential null-ptr-deref due to create_singlethread_workqueue()

There are some functions call create_singlethread_workqueue() without
checking ret value, and the NULL workqueue_struct pointer may causes
null-ptr-deref. Will be fixed by this patch.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5...
Shang XiaoJing [Mon, 14 Nov 2022 13:38:53 +0000 (21:38 +0800)]
net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()

sparx_stats_init() calls create_singlethread_workqueue() and not
checked the ret value, which may return NULL. And a null-ptr-deref may
happen:

sparx_stats_init()
    create_singlethread_workqueue() # failed, sparx5->stats_queue is NULL
    queue_delayed_work()
        queue_delayed_work_on()
            __queue_delayed_work()  # warning here, but continue
                __queue_work()      # access wq->flags, null-ptr-deref

Check the ret value and return -ENOMEM if it is NULL. So as
sparx5_start().

Fixes: af4b11022e2d ("net: sparx5: add ethtool configuration and statistics support")
Fixes: b37a1bae742f ("net: sparx5: add mactable support")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()
Shang XiaoJing [Mon, 14 Nov 2022 13:38:52 +0000 (21:38 +0800)]
net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()

lan966x_stats_init() calls create_singlethread_workqueue() and not
checked the ret value, which may return NULL. And a null-ptr-deref may
happen:

lan966x_stats_init()
    create_singlethread_workqueue() # failed, lan966x->stats_queue is NULL
    queue_delayed_work()
        queue_delayed_work_on()
            __queue_delayed_work()  # warning here, but continue
                __queue_work()      # access wq->flags, null-ptr-deref

Check the ret value and return -ENOMEM if it is NULL.

Fixes: 12c2d0a5b8e2 ("net: lan966x: add ethtool configuration and statistics")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoplatform/x86: ideapad-laptop: Add module parameters to match DMI quirk tables
Hans de Goede [Tue, 15 Nov 2022 19:34:00 +0000 (20:34 +0100)]
platform/x86: ideapad-laptop: Add module parameters to match DMI quirk tables

Add module parameters to allow setting the hw_rfkill_switch and
set_fn_lock_led feature flags for testing these on laptops which are not
on the DMI-id based allow lists for these 2 flags.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20221115193400.376159-1-hdegoede@redhat.com
23 months agoplatform/x86: ideapad-laptop: Fix interrupt storm on fn-lock toggle on some Yoga...
Arnav Rawat [Fri, 11 Nov 2022 14:32:09 +0000 (14:32 +0000)]
platform/x86: ideapad-laptop: Fix interrupt storm on fn-lock toggle on some Yoga laptops

Commit 3ae86d2d4704 ("platform/x86: ideapad-laptop: Fix Legion 5 Fn lock
LED") uses the WMI event-id for the fn-lock event on some Legion 5 laptops
to manually toggle the fn-lock LED because the EC does not do it itself.
However, the same WMI ID is also sent on some Yoga laptops. Here, setting
the fn-lock state is not valid behavior, and causes the EC to spam
interrupts until the laptop is rebooted.

Add a set_fn_lock_led_list[] DMI-id list and only enable the workaround to
manually set the LED on models on this list.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=212671
Cc: Meng Dong <whenov@gmail.com>
Signed-off-by: Arnav Rawat <arnavr3@illinois.edu>
Link: https://lore.kernel.org/r/12093851.O9o76ZdvQC@fedora
[hdegoede@redhat.com: Check DMI-id list only once and store the result]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agoplatform/x86: hp-wmi: Ignore Smart Experience App event
Kai-Heng Feng [Mon, 14 Nov 2022 07:38:41 +0000 (15:38 +0800)]
platform/x86: hp-wmi: Ignore Smart Experience App event

Sometimes hp-wmi driver complains on system resume:
[ 483.116451] hp_wmi: Unknown event_id - 33 - 0x0

According to HP it's a feature called "HP Smart Experience App" and it's
safe to be ignored.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20221114073842.205392-1-kai.heng.feng@canonical.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agoplatform/surface: aggregator_registry: Add support for Surface Laptop 5
Maximilian Luz [Tue, 15 Nov 2022 23:14:40 +0000 (00:14 +0100)]
platform/surface: aggregator_registry: Add support for Surface Laptop 5

Add device nodes to enable support for battery and charger status, the
ACPI platform profile, as well as internal HID devices (including
touchpad and keyboard) on the Surface Laptop 5.

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221115231440.1338142-1-luzmaximilian@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agonet: dsa: don't leak tagger-owned storage on switch driver unbind
Vladimir Oltean [Mon, 14 Nov 2022 14:35:51 +0000 (16:35 +0200)]
net: dsa: don't leak tagger-owned storage on switch driver unbind

In the initial commit dc452a471dba ("net: dsa: introduce tagger-owned
storage for private and shared data"), we had a call to
tag_ops->disconnect(dst) issued from dsa_tree_free(), which is called at
tree teardown time.

There were problems with connecting to a switch tree as a whole, so this
got reworked to connecting to individual switches within the tree. In
this process, tag_ops->disconnect(ds) was made to be called only from
switch.c (cross-chip notifiers emitted as a result of dynamic tag proto
changes), but the normal driver teardown code path wasn't replaced with
anything.

Solve this problem by adding a function that does the opposite of
dsa_switch_setup_tag_protocol(), which is called from the equivalent
spot in dsa_switch_teardown(). The positioning here also ensures that we
won't have any use-after-free in tagging protocol (*rcv) ops, since the
teardown sequence is as follows:

dsa_tree_teardown
-> dsa_tree_teardown_master
   -> dsa_master_teardown
      -> unsets master->dsa_ptr, making no further packets match the
         ETH_P_XDSA packet type handler
-> dsa_tree_teardown_ports
   -> dsa_port_teardown
      -> dsa_slave_destroy
         -> unregisters DSA net devices, there is even a synchronize_net()
            in unregister_netdevice_many()
-> dsa_tree_teardown_switches
   -> dsa_switch_teardown
      -> dsa_switch_teardown_tag_protocol
         -> finally frees the tagger-owned storage

Fixes: 7f2973149c22 ("net: dsa: make tagging protocols connect to individual switches from a tree")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Saeed Mahameed <saeed@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221114143551.1906361-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet/x25: Fix skb leak in x25_lapb_receive_frame()
Wei Yongjun [Mon, 14 Nov 2022 11:05:19 +0000 (11:05 +0000)]
net/x25: Fix skb leak in x25_lapb_receive_frame()

x25_lapb_receive_frame() using skb_copy() to get a private copy of
skb, the new skb should be freed in the undersized/fragmented skb
error handling path. Otherwise there is a memory leak.

Fixes: cb101ed2c3c7 ("x25: Handle undersized/fragmented skbs")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Martin Schiller <ms@dev.tdt.de>
Link: https://lore.kernel.org/r/20221114110519.514538-1-weiyongjun@huaweicloud.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agonet: ag71xx: call phylink_disconnect_phy if ag71xx_hw_enable() fail in ag71xx_open()
Liu Jian [Mon, 14 Nov 2022 09:55:49 +0000 (17:55 +0800)]
net: ag71xx: call phylink_disconnect_phy if ag71xx_hw_enable() fail in ag71xx_open()

If ag71xx_hw_enable() fails, call phylink_disconnect_phy() to clean up.
And if phylink_of_phy_connect() fails, nothing needs to be done.
Compile tested only.

Fixes: 892e09153fa3 ("net: ag71xx: port to phylink")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20221114095549.40342-1-liujian56@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoAMerge tag 'netfs-fixes-20221115' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 15 Nov 2022 22:56:23 +0000 (14:56 -0800)]
AMerge tag 'netfs-fixes-20221115' of git://git./linux/kernel/git/dhowells/linux-fs

Pull netfx fixes from David Howells:
 "Two fixes, affecting the functions that iterates over the pagecache
  unmarking or unlocking pages after an op is complete:

   - xas_for_each() loops must call xas_retry() first thing and
     immediately do a "continue" in the case that the extracted value is
     a special value that indicates that the walk raced with a
     modification. Fix the unlock and unmark loops to do this.

   - The maths in the unlock loop is dodgy as it could, theoretically,
     at some point in the future end up with a starting file pointer
     that is in the middle of a folio. This will cause a subtraction to
     go negative - but the number is unsigned. Fix the maths to use
     absolute file positions instead of relative page indices"

* tag 'netfs-fixes-20221115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  netfs: Fix dodgy maths
  netfs: Fix missing xas_retry() calls in xarray iteration

23 months agoMerge tag 'erofs-for-6.1-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 15 Nov 2022 18:30:34 +0000 (10:30 -0800)]
Merge tag 'erofs-for-6.1-rc6-fixes' of git://git./linux/kernel/git/xiang/erofs

Pull erofs fixes from Gao Xiang:
 "Most patches randomly fix error paths or corner cases in fscache mode
  reported recently. One fixes an invalid access relating to fragments
  on crafted images.

  Summary:

   - Fix packed_inode invalid access when reading fragments on crafted
     images

   - Add a missing erofs_put_metabuf() in an error path in fscache mode

   - Fix incorrect `count' for unmapped extents in fscache mode

   - Fix use-after-free of fsid and domain_id string when remounting

   - Fix missing xas_retry() in fscache mode"

* tag 'erofs-for-6.1-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: fix missing xas_retry() in fscache mode
  erofs: fix use-after-free of fsid and domain_id string
  erofs: get correct count for unmapped range in fscache mode
  erofs: put metabuf in error path in fscache mode
  erofs: fix general protection fault when reading fragment

23 months agox86/cpu: Restore AMD's DE_CFG MSR after resume
Borislav Petkov [Mon, 14 Nov 2022 11:44:01 +0000 (12:44 +0100)]
x86/cpu: Restore AMD's DE_CFG MSR after resume

DE_CFG contains the LFENCE serializing bit, restore it on resume too.
This is relevant to older families due to the way how they do S3.

Unify and correct naming while at it.

Fixes: e4d0e84e4907 ("x86/cpu/AMD: Make LFENCE a serializing instruction")
Reported-by: Andrew Cooper <Andrew.Cooper3@citrix.com>
Reported-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 months agonetfs: Fix dodgy maths
David Howells [Fri, 4 Nov 2022 15:36:49 +0000 (15:36 +0000)]
netfs: Fix dodgy maths

Fix the dodgy maths in netfs_rreq_unlock_folios().  start_page could be
inside the folio, in which case the calculation of pgpos will be come up
with a negative number (though for the moment rreq->start is rounded down
earlier and folios would have to get merged whilst locked)

Alter how this works to just frame the tracking in terms of absolute file
positions, rather than offsets from the start of the I/O request.  This
simplifies the maths and makes it easier to follow.

Fix the issue by using folio_pos() and folio_size() to calculate the end
position of the page.

Fixes: 3d3c95046742 ("netfs: Provide readahead and readpage netfs helpers")
Reported-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/Y2SJw7w1IsIik3nb@casper.infradead.org/
Link: https://lore.kernel.org/r/166757988611.950645.7626959069846893164.stgit@warthog.procyon.org.uk/
23 months agonetfs: Fix missing xas_retry() calls in xarray iteration
David Howells [Thu, 3 Nov 2022 16:08:14 +0000 (16:08 +0000)]
netfs: Fix missing xas_retry() calls in xarray iteration

netfslib has a number of places in which it performs iteration of an xarray
whilst being under the RCU read lock.  It *should* call xas_retry() as the
first thing inside of the loop and do "continue" if it returns true in case
the xarray walker passed out a special value indicating that the walk needs
to be redone from the root[*].

Fix this by adding the missing retry checks.

[*] I wonder if this should be done inside xas_find(), xas_next_node() and
    suchlike, but I'm told that's not an simple change to effect.

This can cause an oops like that below.  Note the faulting address - this
is an internal value (|0x2) returned from xarray.

BUG: kernel NULL pointer dereference, address: 0000000000000402
...
RIP: 0010:netfs_rreq_unlock+0xef/0x380 [netfs]
...
Call Trace:
 netfs_rreq_assess+0xa6/0x240 [netfs]
 netfs_readpage+0x173/0x3b0 [netfs]
 ? init_wait_var_entry+0x50/0x50
 filemap_read_page+0x33/0xf0
 filemap_get_pages+0x2f2/0x3f0
 filemap_read+0xaa/0x320
 ? do_filp_open+0xb2/0x150
 ? rmqueue+0x3be/0xe10
 ceph_read_iter+0x1fe/0x680 [ceph]
 ? new_sync_read+0x115/0x1a0
 new_sync_read+0x115/0x1a0
 vfs_read+0xf3/0x180
 ksys_read+0x5f/0xe0
 do_syscall_64+0x38/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Changes:
========
ver #2)
 - Changed an unsigned int to a size_t to reduce the likelihood of an
   overflow as per Willy's suggestion.
 - Added an additional patch to fix the maths.

Fixes: 3d3c95046742 ("netfs: Provide readahead and readpage netfs helpers")
Reported-by: George Law <glaw@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
cc: Matthew Wilcox <willy@infradead.org>
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/166749229733.107206.17482609105741691452.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/166757987929.950645.12595273010425381286.stgit@warthog.procyon.org.uk/
23 months agoplatform/surface: aggregator_registry: Add support for Surface Pro 9
Maximilian Luz [Sun, 13 Nov 2022 18:59:51 +0000 (19:59 +0100)]
platform/surface: aggregator_registry: Add support for Surface Pro 9

Add device nodes to enable support for battery and charger status, the
ACPI platform profile, as well as internal and type-cover HID devices
(including sensors, touchpad, keyboard, and other miscellaneous devices)
on the Surface Pro 9.

This does not include support for a tablet-mode switch yet, as that is
now handled via the POS subsystem (unlike the Surface Pro 8, where it is
handled via the KIP subsystem) and therefore needs further changes.

While we're at it, also add the missing comment for the Surface Pro 8.

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221113185951.224759-2-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agoplatform/surface: aggregator: Do not check for repeated unsequenced packets
Maximilian Luz [Sun, 13 Nov 2022 18:59:50 +0000 (19:59 +0100)]
platform/surface: aggregator: Do not check for repeated unsequenced packets

Currently, we check any received packet whether we have already seen it
previously, regardless of the packet type (sequenced / unsequenced). We
do this by checking the sequence number. This assumes that sequence
numbers are valid for both sequenced and unsequenced packets. However,
this assumption appears to be incorrect.

On some devices, the sequence number field of unsequenced packets (in
particular HID input events on the Surface Pro 9) is always zero. As a
result, the current retransmission check kicks in and discards all but
the first unsequenced packet, breaking (among other things) keyboard and
touchpad input.

Note that we have, so far, only seen packets being retransmitted in
sequenced communication. In particular, this happens when there is an
ACK timeout, causing the EC (or us) to re-send the packet waiting for an
ACK. Arguably, retransmission / duplication of unsequenced packets
should not be an issue as there is no logical condition (such as an ACK
timeout) to determine when a packet should be sent again.

Therefore, remove the retransmission check for unsequenced packets
entirely to resolve the issue.

Fixes: c167b9c7e3d6 ("platform/surface: Add Surface Aggregator subsystem")
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20221113185951.224759-1-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agoplatform/x86: acer-wmi: Enable SW_TABLET_MODE on Switch V 10 (SW5-017)
Hans de Goede [Fri, 11 Nov 2022 11:16:39 +0000 (12:16 +0100)]
platform/x86: acer-wmi: Enable SW_TABLET_MODE on Switch V 10 (SW5-017)

Like the Acer Switch 10 (SW5-012) and Acer Switch 10 (S1003) models
the Acer Switch V 10 (SW5-017) supports reporting SW_TABLET_MODE
through acer-wmi.

Add a DMI quirk for the SW5-017 setting force_caps to ACER_CAP_KBD_DOCK
(these devices have no other acer-wmi based functionality).

Cc: Rudolf Polzer <rpolzer@google.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20221111111639.35730-1-hdegoede@redhat.com
23 months agoplatform/x86: asus-wmi: add missing pci_dev_put() in asus_wmi_set_xusb2pr()
Xiongfeng Wang [Fri, 11 Nov 2022 10:07:52 +0000 (18:07 +0800)]
platform/x86: asus-wmi: add missing pci_dev_put() in asus_wmi_set_xusb2pr()

pci_get_device() will increase the reference count for the returned
pci_dev. We need to use pci_dev_put() to decrease the reference count
before asus_wmi_set_xusb2pr() returns.

Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/20221111100752.134311-1-wangxiongfeng2@huawei.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agoplatform/x86/intel: pmc: Don't unconditionally attach Intel PMC when virtualized
Roger Pau Monné [Thu, 10 Nov 2022 16:31:44 +0000 (17:31 +0100)]
platform/x86/intel: pmc: Don't unconditionally attach Intel PMC when virtualized

The current logic in the Intel PMC driver will forcefully attach it
when detecting any CPU on the intel_pmc_core_platform_ids array,
even if the matching ACPI device is not present.

There's no checking in pmc_core_probe() to assert that the PMC device
is present, and hence on virtualized environments the PMC device
probes successfully, even if the underlying registers are not present.
Before commit 21ae43570940 ("platform/x86: intel_pmc_core: Substitute PCI
with CPUID enumeration") the driver would check for the presence of a
specific PCI device, and that prevented the driver from attaching when
running virtualized.

Fix by only forcefully attaching the PMC device when not running
virtualized.  Note that virtualized platforms can still get the device
to load if the appropriate ACPI device is present on the tables
provided to the VM.

Make an exception for the Xen initial domain, which does have full
hardware access, and hence can attach to the PMC if present.

Fixes: 21ae43570940 ("platform/x86: intel_pmc_core: Substitute PCI with CPUID enumeration")
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221110163145.80374-1-roger.pau@citrix.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agoplatform/x86: thinkpad_acpi: Enable s2idle quirk for 21A1 machine type
Lennard Gäher [Tue, 8 Nov 2022 07:20:23 +0000 (08:20 +0100)]
platform/x86: thinkpad_acpi: Enable s2idle quirk for 21A1 machine type

Previously, the s2idle quirk was only active for the 21A0 machine type
of the P14s Gen2a product. This also enables it for the second 21A1 type,
thus reducing wake-up times from s2idle.

Signed-off-by: Lennard Gäher <gaeher@mpi-sws.org>
Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2181
Link: https://lore.kernel.org/r/20221108072023.17069-1-gaeher@mpi-sws.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agoplatform/x86/amd: pmc: Add new ACPI ID AMDI0009
Shyam Sundar S K [Wed, 9 Nov 2022 08:33:46 +0000 (14:03 +0530)]
platform/x86/amd: pmc: Add new ACPI ID AMDI0009

Add new a new ACPI ID AMDI0009 used by upcoming AMD platform to the pmc
supported list of devices.

Cc: stable@vger.kernel.org # 6.0
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20221109083346.361603-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agobridge: switchdev: Fix memory leaks when changing VLAN protocol
Ido Schimmel [Mon, 14 Nov 2022 08:45:09 +0000 (10:45 +0200)]
bridge: switchdev: Fix memory leaks when changing VLAN protocol

The bridge driver can offload VLANs to the underlying hardware either
via switchdev or the 8021q driver. When the former is used, the VLAN is
marked in the bridge driver with the 'BR_VLFLAG_ADDED_BY_SWITCHDEV'
private flag.

To avoid the memory leaks mentioned in the cited commit, the bridge
driver will try to delete a VLAN via the 8021q driver if the VLAN is not
marked with the previously mentioned flag.

When the VLAN protocol of the bridge changes, switchdev drivers are
notified via the 'SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL' attribute, but
the 8021q driver is also called to add the existing VLANs with the new
protocol and delete them with the old protocol.

In case the VLANs were offloaded via switchdev, the above behavior is
both redundant and buggy. Redundant because the VLANs are already
programmed in hardware and drivers that support VLAN protocol change
(currently only mlx5) change the protocol upon the switchdev attribute
notification. Buggy because the 8021q driver is called despite these
VLANs being marked with 'BR_VLFLAG_ADDED_BY_SWITCHDEV'. This leads to
memory leaks [1] when the VLANs are deleted.

Fix by not calling the 8021q driver for VLANs that were already
programmed via switchdev.

[1]
unreferenced object 0xffff8881f6771200 (size 256):
  comm "ip", pid 446855, jiffies 4298238841 (age 55.240s)
  hex dump (first 32 bytes):
    00 00 7f 0e 83 88 ff ff 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000012819ac>] vlan_vid_add+0x437/0x750
    [<00000000f2281fad>] __br_vlan_set_proto+0x289/0x920
    [<000000000632b56f>] br_changelink+0x3d6/0x13f0
    [<0000000089d25f04>] __rtnl_newlink+0x8ae/0x14c0
    [<00000000f6276baf>] rtnl_newlink+0x5f/0x90
    [<00000000746dc902>] rtnetlink_rcv_msg+0x336/0xa00
    [<000000001c2241c0>] netlink_rcv_skb+0x11d/0x340
    [<0000000010588814>] netlink_unicast+0x438/0x710
    [<00000000e1a4cd5c>] netlink_sendmsg+0x788/0xc40
    [<00000000e8992d4e>] sock_sendmsg+0xb0/0xe0
    [<00000000621b8f91>] ____sys_sendmsg+0x4ff/0x6d0
    [<000000000ea26996>] ___sys_sendmsg+0x12e/0x1b0
    [<00000000684f7e25>] __sys_sendmsg+0xab/0x130
    [<000000004538b104>] do_syscall_64+0x3d/0x90
    [<0000000091ed9678>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

Fixes: 279737939a81 ("net: bridge: Fix VLANs memory leak")
Reported-by: Vlad Buslov <vladbu@nvidia.com>
Tested-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20221114084509.860831-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoMerge branch 'net-hns3-this-series-bugfix-for-the-hns3-ethernet-driver'
Paolo Abeni [Tue, 15 Nov 2022 12:29:28 +0000 (13:29 +0100)]
Merge branch 'net-hns3-this-series-bugfix-for-the-hns3-ethernet-driver'

Hao Lan says:

====================
net: hns3: This series bugfix for the HNS3 ethernet driver.

This series includes some bugfix for the HNS3 ethernet driver.
Patch 1# fix incorrect hw rss hash type of rx packet.
Fixes: 796640778c26 ("net: hns3: support RXD advanced layout")
Fixes: 232fc64b6e62 ("net: hns3: Add HW RSS hash information to RX skb")
Fixes: ea4858670717 ("net: hns3: handle the BD info on the last BD of the packet")

Patch 2# fix return value check bug of rx copybreak.
Fixes: e74a726da2c4 ("net: hns3: refactor hns3_nic_reuse_page()")
Fixes: 99f6b5fb5f63 ("net: hns3: use bounce buffer when rx page can not be reused")

Patch 3# net: hns3: fix setting incorrect phy link ksettings
 for firmware in resetting process
Fixes: f5f2b3e4dcc0 ("net: hns3: add support for imp-controlled PHYs")
Fixes: c5ef83cbb1e9 ("net: hns3: fix for phy_addr error in hclge_mac_mdio_config")
Fixes: 2312e050f42b ("net: hns3: Fix for deadlock problem occurring when unregistering ae_algo")
====================

Link: https://lore.kernel.org/r/20221114082048.49450-1-lanhao@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonet: hns3: fix setting incorrect phy link ksettings for firmware in resetting process
Guangbin Huang [Mon, 14 Nov 2022 08:20:48 +0000 (16:20 +0800)]
net: hns3: fix setting incorrect phy link ksettings for firmware in resetting process

Currently, if driver is in phy-imp(phy controlled by imp firmware) mode, as
driver did not update phy link ksettings after initialization process or
not update advertising when getting phy link ksettings from firmware, it
may set incorrect phy link ksettings for firmware in resetting process.
So fix it.

Fixes: f5f2b3e4dcc0 ("net: hns3: add support for imp-controlled PHYs")
Fixes: c5ef83cbb1e9 ("net: hns3: fix for phy_addr error in hclge_mac_mdio_config")
Fixes: 2312e050f42b ("net: hns3: Fix for deadlock problem occurring when unregistering ae_algo")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonet: hns3: fix return value check bug of rx copybreak
Jie Wang [Mon, 14 Nov 2022 08:20:47 +0000 (16:20 +0800)]
net: hns3: fix return value check bug of rx copybreak

The refactoring of rx copybreak modifies the original return logic, which
will make this feature unavailable. So this patch fixes the return logic of
rx copybreak.

Fixes: e74a726da2c4 ("net: hns3: refactor hns3_nic_reuse_page()")
Fixes: 99f6b5fb5f63 ("net: hns3: use bounce buffer when rx page can not be reused")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonet: hns3: fix incorrect hw rss hash type of rx packet
Jian Shen [Mon, 14 Nov 2022 08:20:46 +0000 (16:20 +0800)]
net: hns3: fix incorrect hw rss hash type of rx packet

Currently, the HNS3 driver reports the rss hash type
of each packet based on the rss hash tuples set. It
always reports PKT_HASH_TYPE_L4, without checking the
type of current packet. It's incorrect.
Fixes it by reporting it base on the packet type.

Fixes: 796640778c26 ("net: hns3: support RXD advanced layout")
Fixes: 232fc64b6e62 ("net: hns3: Add HW RSS hash information to RX skb")
Fixes: ea4858670717 ("net: hns3: handle the BD info on the last BD of the packet")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonet: phy: marvell: add sleep time after enabling the loopback bit
Aminuddin Jamaluddin [Mon, 14 Nov 2022 06:53:02 +0000 (14:53 +0800)]
net: phy: marvell: add sleep time after enabling the loopback bit

Sleep time is added to ensure the phy to be ready after loopback
bit was set. This to prevent the phy loopback test from failing.

Fixes: 020a45aff119 ("net: phy: marvell: add Marvell specific PHY loopback")
Cc: <stable@vger.kernel.org> # 5.15.x
Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Signed-off-by: Aminuddin Jamaluddin <aminuddin.jamaluddin@intel.com>
Link: https://lore.kernel.org/r/20221114065302.10625-1-aminuddin.jamaluddin@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agonet: ena: Fix error handling in ena_init()
Yuan Can [Mon, 14 Nov 2022 02:56:59 +0000 (02:56 +0000)]
net: ena: Fix error handling in ena_init()

The ena_init() won't destroy workqueue created by
create_singlethread_workqueue() when pci_register_driver() failed.
Call destroy_workqueue() when pci_register_driver() failed to prevent the
resource leak.

Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Acked-by: Shay Agroskin <shayagr@amazon.com>
Link: https://lore.kernel.org/r/20221114025659.124726-1-yuancan@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agokcm: close race conditions on sk_receive_queue
Cong Wang [Mon, 14 Nov 2022 00:51:19 +0000 (16:51 -0800)]
kcm: close race conditions on sk_receive_queue

sk->sk_receive_queue is protected by skb queue lock, but for KCM
sockets its RX path takes mux->rx_lock to protect more than just
skb queue. However, kcm_recvmsg() still only grabs the skb queue
lock, so race conditions still exist.

We can teach kcm_recvmsg() to grab mux->rx_lock too but this would
introduce a potential performance regression as struct kcm_mux can
be shared by multiple KCM sockets.

So we have to enforce skb queue lock in requeue_rx_msgs() and handle
skb peek case carefully in kcm_wait_data(). Fortunately,
skb_recv_datagram() already handles it nicely and is widely used by
other sockets, we can just switch to skb_recv_datagram() after
getting rid of the unnecessary sock lock in kcm_recvmsg() and
kcm_splice_read(). Side note: SOCK_DONE is not used by KCM sockets,
so it is safe to get rid of this check too.

I ran the original syzbot reproducer for 30 min without seeing any
issue.

Fixes: ab7ac4eb9832 ("kcm: Kernel Connection Multiplexor module")
Reported-by: syzbot+278279efdd2730dd14bf@syzkaller.appspotmail.com
Reported-by: shaozhengchao <shaozhengchao@huawei.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Link: https://lore.kernel.org/r/20221114005119.597905-1-xiyou.wangcong@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
23 months agoplatform/x86/amd: pmc: Remove more CONFIG_DEBUG_FS checks
Mario Limonciello [Tue, 8 Nov 2022 02:33:23 +0000 (20:33 -0600)]
platform/x86/amd: pmc: Remove more CONFIG_DEBUG_FS checks

commit b37fe34c8309 ("platform/x86/amd: pmc: remove CONFIG_DEBUG_FS
checks") removed most CONFIG_DEBUG_FS checks, but there were some
left that were reported to cause compile test failures.

Remove the remaining checks, and also the unnecessary CONFIG_SUSPEND
used in the same place.

Reported-by: liyupeng@zbhlos.com
Fixes: b37fe34c8309 ("platform/x86/amd: pmc: remove CONFIG_DEBUG_FS checks")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216679
Link: https://lore.kernel.org/r/20221108023323.19304-1-mario.limonciello@amd.com
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
23 months agopinctrl: mediatek: Export debounce time tables
Linus Walleij [Tue, 15 Nov 2022 08:11:07 +0000 (09:11 +0100)]
pinctrl: mediatek: Export debounce time tables

The kernel test robot complains that in certain combinations
when building the Mediatek drivers as modules we lack some
debounce table symbols, so export them.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: e1ff91f9d230 ("pinctrl: mediatek: Fix EINT pins input debounce time configuration")
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
23 months agoxen/platform-pci: use define instead of literal number
Juergen Gross [Mon, 14 Nov 2022 13:29:37 +0000 (14:29 +0100)]
xen/platform-pci: use define instead of literal number

Instead of "0x01" use the HVM_PARAM_CALLBACK_TYPE_PCI_INTX define from
the interface header in get_callback_via().

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
23 months agonet: ionic: Fix error handling in ionic_init_module()
Yuan Can [Sun, 13 Nov 2022 09:29:29 +0000 (09:29 +0000)]
net: ionic: Fix error handling in ionic_init_module()

A problem about ionic create debugfs failed is triggered with the
following log given:

 [  415.799514] debugfs: Directory 'ionic' with parent '/' already present!

The reason is that ionic_init_module() returns ionic_bus_register_driver()
directly without checking its return value, if ionic_bus_register_driver()
failed, it returns without destroy the newly created debugfs, resulting
the debugfs of ionic can never be created later.

 ionic_init_module()
   ionic_debugfs_create() # create debugfs directory
   ionic_bus_register_driver()
     pci_register_driver()
       driver_register()
         bus_add_driver()
           priv = kzalloc(...) # OOM happened
   # return without destroy debugfs directory

Fix by removing debugfs when ionic_bus_register_driver() returns error.

Fixes: fbfb8031533c ("ionic: Add hardware init and device commands")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Acked-by: Shannon Nelson <snelson@pensando.io>
Link: https://lore.kernel.org/r/20221113092929.19161-1-yuancan@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agomlxsw: Avoid warnings when not offloaded FDB entry with IPv6 is removed
Amit Cohen [Fri, 11 Nov 2022 17:03:27 +0000 (18:03 +0100)]
mlxsw: Avoid warnings when not offloaded FDB entry with IPv6 is removed

FDB entries that perform VXLAN encapsulation with an IPv6 underlay hold
a reference on a resource - the KVDL entry where the IPv6 underlay
destination IP is stored. For that, the driver maintains two hash tables:
1. Maps IPv6 to KVDL index
2. Maps {MAC, FID index} to IPv6 address

When a FDB entry is removed, the second table is used to find the relevant
IPv6 address and the first table is used to remove the reference count and
free the index if is not used anymore.

In order for a packet to be forwarded to a single remote VTEP, FDB
entries need to be configured at both the bridge and VXLAN devices' FDB
tables. Both entries are squashed into one {MAC, VLAN/VNI} -> IP entry
in the hardware. Therefore, in case one entry is removed, the entry will
be removed from the hardware and the remaining entry will be unmarked
with 'offload' flag since it is not offloaded anymore.

For example, the two FDB entries should be added to allow packets to be
forwarded via vx10:
$ bridge fdb add dev vx10 aa:bb:cc:dd:ee:ff self static dst 2001:db8:5::1
$ bridge fdb add dev vx10 aa:bb:cc:dd:ee:ff master static vlan 10

When one entry will be removed, the second one will not be offloaded
anymore. When the first entry (in VXLAN FDB) will be removed / will not be
offloaded anymore, the two mappings in IPv6 hash tables will be removed.

In case that the second entry is removed before the first one, unexpected
warnings[1][2] will be shown in user space as a result of removing the
first entry. The issue is that not offloaded entry is removed, the driver
tries to search the relevant entries in the hash tables, does not find them
and therefore warns.

Do not handle removing of not offloaded VXLAN FDB entries, as they were
already removed when the offload flag was removed.

[1]:
WARNING: CPU: 1 PID: 239 at drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c:914 mlxsw_sp_nve_ipv6_addr_map_del+0x6b/0x80 [mlxsw_spectrum]
...
Hardware name: Mellanox Technologies Ltd. Mellanox switch/Mellanox switch, BIOS 4.6.5 05/21/2015
Workqueue: mlxsw_core_ordered mlxsw_sp_switchdev_vxlan_fdb_event_work [mlxsw_spectrum]
RIP: 0010:mlxsw_sp_nve_ipv6_addr_map_del+0x6b/0x80 [mlxsw_spectrum]
...
Call Trace:
  <TASK>
  mlxsw_sp_port_fdb_tunnel_uc_op+0x6cf/0x7b0 [mlxsw_spectrum]
  mlxsw_sp_switchdev_vxlan_fdb_event_work+0x17c/0x420 [mlxsw_spectrum]
  ? finish_task_switch.isra.0+0x8c/0x290
  process_one_work+0x1cd/0x390
  worker_thread+0x48/0x3c0
  ? process_one_work+0x390/0x390
  kthread+0xe0/0x110
  ? kthread_complete_and_exit+0x20/0x20
  ret_from_fork+0x1f/0x30
  </TASK>

[2]:
WARNING: CPU: 0 PID: 239 at drivers/net/ethernet/mellanox/mlxsw/spectrum.c:3035 mlxsw_sp_ipv6_addr_put+0x142/0x220 [mlxsw_spectrum]
...
Hardware name: Mellanox Technologies Ltd. Mellanox switch/Mellanox switch, BIOS 4.6.5 05/21/2015
Workqueue: mlxsw_core_ordered mlxsw_sp_switchdev_vxlan_fdb_event_work [mlxsw_spectrum]
RIP: 0010:mlxsw_sp_ipv6_addr_put+0x142/0x220 [mlxsw_spectrum]
...
Call Trace:
  <TASK>
  ? mlxsw_sp_port_fdb_tun_uc_op6_sfd_write+0x5c1/0x610 [mlxsw_spectrum]
  mlxsw_sp_port_fdb_tunnel_uc_op+0x6ec/0x7b0 [mlxsw_spectrum]
  mlxsw_sp_switchdev_vxlan_fdb_event_work+0x17c/0x420 [mlxsw_spectrum]
  ? finish_task_switch.isra.0+0x8c/0x290
  process_one_work+0x1cd/0x390
  worker_thread+0x48/0x3c0
  ? process_one_work+0x390/0x390
  kthread+0xe0/0x110
  ? kthread_complete_and_exit+0x20/0x20
  ret_from_fork+0x1f/0x30
  </TASK>

Fixes: 0860c7641634 ("mlxsw: spectrum_nve: Keep track of IPv6 addresses used by FDB entries")
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/c186de8cbd28e3eb661e06f31f7f2f2dff30020f.1668184350.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
23 months agoMerge tag 'vfio-v6.1-rc6' of https://github.com/awilliam/linux-vfio
Linus Torvalds [Mon, 14 Nov 2022 20:40:51 +0000 (12:40 -0800)]
Merge tag 'vfio-v6.1-rc6' of https://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:

 - Fixes for potential container registration leak for drivers not
   implementing a close callback, duplicate container de-registrations,
   and a regression in support for bus reset on last device close from
   a device set (Anthony DeRossi)

* tag 'vfio-v6.1-rc6' of https://github.com/awilliam/linux-vfio:
  vfio/pci: Check the device set open count on reset
  vfio: Export the device set open count
  vfio: Fix container device registration life cycle

23 months agoMerge tag 'mtd/fixes-for-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 14 Nov 2022 20:00:03 +0000 (12:00 -0800)]
Merge tag 'mtd/fixes-for-6.1-rc6' of git://git./linux/kernel/git/mtd/linux

Pull mtd fixes from Miquel Raynal:

 - Placate "$VARIABLE is used uninitialized" warnings

 - omap2: Add missing dependency on GPMC

 - qcom: Handle ret from parse with codeword_fixup

* tag 'mtd/fixes-for-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: onenand: omap2: add dependency on GPMC
  mtd: rawnand: placate "$VARIABLE is used uninitialized" warnings
  mtd: rawnand: qcom: handle ret from parse with codeword_fixup

23 months agoerofs: fix missing xas_retry() in fscache mode
Jingbo Xu [Mon, 14 Nov 2022 12:19:43 +0000 (20:19 +0800)]
erofs: fix missing xas_retry() in fscache mode

The xarray iteration only holds the RCU read lock and thus may encounter
XA_RETRY_ENTRY if there's process modifying the xarray concurrently.
This will cause oops when referring to the invalid entry.

Fix this by adding the missing xas_retry(), which will make the
iteration wind back to the root node if XA_RETRY_ENTRY is encountered.

Fixes: d435d53228dd ("erofs: change to use asynchronous io for fscache readpage/readahead")
Suggested-by: David Howells <dhowells@redhat.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Jia Zhu <zhujia.zj@bytedance.com>
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20221114121943.29987-1-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
23 months agopinctrl: mediatek: Fix EINT pins input debounce time configuration
AngeloGioacchino Del Regno [Fri, 11 Nov 2022 09:41:06 +0000 (10:41 +0100)]
pinctrl: mediatek: Fix EINT pins input debounce time configuration

The External Interrupt Controller (EINTC) on all of the supported
MediaTek SoCs does support input debouncing, but not all of them
index the debounce time values (DBNC_SETTING registers) the same way.

Before this change, in some cases, as an example, requesting a debounce
time of 16 milliseconds would mistakenly set the relative DBNC_SETTING
register to 0x2, resulting in a way shorter debounce time of 500uS.

To fix the aforementioned issue, define three different debounce_time
arrays, reflecting the correct register index for each value and for
each register index variant, and make sure that each SoC pinctrl
driver uses the right one.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221111094106.18486-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
23 months agoxen/platform-pci: add missing free_irq() in error path
ruanjinjie [Mon, 14 Nov 2022 11:21:24 +0000 (19:21 +0800)]
xen/platform-pci: add missing free_irq() in error path

free_irq() is missing in case of error in platform_pci_probe(), fix that.

Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Link: https://lore.kernel.org/r/20221114112124.1965611-1-ruanjinjie@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
23 months agoxen-pciback: Allow setting PCI_MSIX_FLAGS_MASKALL too
Marek Marczykowski-Górecki [Mon, 14 Nov 2022 10:31:08 +0000 (11:31 +0100)]
xen-pciback: Allow setting PCI_MSIX_FLAGS_MASKALL too

When Xen domain configures MSI-X, the usual approach is to enable MSI-X
together with masking all of them via the config space, then fill the
table and only then clear PCI_MSIX_FLAGS_MASKALL. Allow doing this via
QEMU running in a stub domain.

Previously, when changing PCI_MSIX_FLAGS_MASKALL was not allowed, the
whole write was aborted, preventing change to the PCI_MSIX_FLAGS_ENABLE
bit too.

Note the Xen hypervisor intercepts this write anyway, and may keep the
PCI_MSIX_FLAGS_MASKALL bit set if it wishes to. It will store the
guest-requested state and will apply it eventually.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Link: https://lore.kernel.org/r/20221114103110.1519413-1-marmarek@invisiblethingslab.com
Signed-off-by: Juergen Gross <jgross@suse.com>
23 months agoxen/pcpu: fix possible memory leak in register_pcpu()
Yang Yingliang [Thu, 10 Nov 2022 15:24:41 +0000 (23:24 +0800)]
xen/pcpu: fix possible memory leak in register_pcpu()

In device_add(), dev_set_name() is called to allocate name, if it returns
error, the name need be freed. As comment of device_register() says, it
should use put_device() to give up the reference in the error path. So fix
this by calling put_device(), then the name can be freed in kobject_cleanup().

Fixes: f65c9bb3fb72 ("xen/pcpu: Xen physical cpus online/offline sys interface")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20221110152441.401630-1-yangyingliang@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
23 months agox86/xen: Use kstrtobool() instead of strtobool()
Christophe JAILLET [Tue, 1 Nov 2022 21:14:16 +0000 (22:14 +0100)]
x86/xen: Use kstrtobool() instead of strtobool()

strtobool() is the same as kstrtobool().
However, the latter is more used within the kernel.

In order to remove strtobool() and slightly simplify kstrtox.h, switch to
the other function name.

While at it, include the corresponding header file (<linux/kstrtox.h>)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/e91af3c8708af38b1c57e0a2d7eb9765dda0e963.1667336095.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Juergen Gross <jgross@suse.com>
23 months agonet: dsa: make dsa_master_ioctl() see through port_hwtstamp_get() shims
Vladimir Oltean [Fri, 11 Nov 2022 21:10:20 +0000 (23:10 +0200)]
net: dsa: make dsa_master_ioctl() see through port_hwtstamp_get() shims

There are multi-generational drivers like mv88e6xxx which have code like
this:

int mv88e6xxx_port_hwtstamp_get(struct dsa_switch *ds, int port,
struct ifreq *ifr)
{
if (!chip->info->ptp_support)
return -EOPNOTSUPP;

...
}

DSA wants to deny PTP timestamping on the master if the switch supports
timestamping too. However it currently relies on the presence of the
port_hwtstamp_get() callback to determine PTP capability, and this
clearly does not work in that case (method is present but returns
-EOPNOTSUPP).

We should not deny PTP on the DSA master for those switches which truly
do not support hardware timestamping.

Create a dsa_port_supports_hwtstamp() method which actually probes for
support by calling port_hwtstamp_get() and seeing whether that returned
-EOPNOTSUPP or not.

Fixes: f685e609a301 ("net: dsa: Deny PTP on master if switch supports it")
Link: https://patchwork.kernel.org/project/netdevbpf/patch/20221110124345.3901389-1-festevam@gmail.com/
Reported-by: Fabio Estevam <festevam@gmail.com>
Reported-by: Steffen Bätz <steffen@innosonix.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: mhi: Fix memory leak in mhi_net_dellink()
Wei Yongjun [Fri, 11 Nov 2022 09:20:44 +0000 (09:20 +0000)]
net: mhi: Fix memory leak in mhi_net_dellink()

MHI driver registers network device without setting the
needs_free_netdev flag, and does NOT call free_netdev() when
unregisters network device, which causes a memory leak.

This patch calls free_netdev() to fix it since netdev_priv
is used after unregister.

Fixes: 13adac032982 ("net: mhi_net: Register wwan_ops for link creation")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoMerge branch 'octeon_ep-fixes'
David S. Miller [Mon, 14 Nov 2022 10:55:43 +0000 (10:55 +0000)]
Merge branch 'octeon_ep-fixes'

Ziyang Xuan says:

====================
octeon_ep: fix several bugs in exception paths

Find several obvious bugs during code review in exception paths. Provide
this patchset to fix them. Not tested, just compiled.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoocteon_ep: ensure get mac address successfully before eth_hw_addr_set()
Ziyang Xuan [Fri, 11 Nov 2022 07:09:35 +0000 (15:09 +0800)]
octeon_ep: ensure get mac address successfully before eth_hw_addr_set()

octep_get_mac_addr() can fail because send mbox message failed. If this
happens, octep_dev->mac_addr will be zero. It should not continue to
initialize. Add exception handling for octep_get_mac_addr() to fix it.

Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoocteon_ep: fix potential memory leak in octep_device_setup()
Ziyang Xuan [Fri, 11 Nov 2022 07:09:23 +0000 (15:09 +0800)]
octeon_ep: fix potential memory leak in octep_device_setup()

When occur unsupported_dev and mbox init errors, it did not free oct->conf
and iounmap() oct->mmio[i].hw_addr. That would trigger memory leak problem.
Add kfree() for oct->conf and iounmap() for oct->mmio[i].hw_addr under
unsupported_dev and mbox init errors to fix the problem.

Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoocteon_ep: ensure octep_get_link_status() successfully before octep_link_up()
Ziyang Xuan [Fri, 11 Nov 2022 07:08:47 +0000 (15:08 +0800)]
octeon_ep: ensure octep_get_link_status() successfully before octep_link_up()

octep_get_link_status() can fail because send mbox message failed, then
octep_get_link_status() will return ret less than 0. Excute octep_link_up()
as long as ret is not equal to 0 in octep_open() now. That is not correct.

The value type of link.state is enum octep_ctrl_net_state. Positive value
represents up. Excute octep_link_up() when ret is bigger than 0.

Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agoocteon_ep: delete unnecessary napi rollback under set_queues_err in octep_open()
Ziyang Xuan [Fri, 11 Nov 2022 07:08:27 +0000 (15:08 +0800)]
octeon_ep: delete unnecessary napi rollback under set_queues_err in octep_open()

octep_napi_add() and octep_napi_enable() are all after
netif_set_real_num_{tx,rx}_queues() in octep_open(), so it is unnecessary
napi rollback under set_queues_err. Delete them to fix it.

Fixes: 37d79d059606 ("octeon_ep: add Tx/Rx processing and interrupt support")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agobnxt_en: Remove debugfs when pci_register_driver failed
Gaosheng Cui [Fri, 11 Nov 2022 07:04:33 +0000 (15:04 +0800)]
bnxt_en: Remove debugfs when pci_register_driver failed

When pci_register_driver failed, we need to remove debugfs,
which will caused a resource leak, fix it.

Resource leak logs as follows:
[   52.184456] debugfs: Directory 'bnxt_en' with parent '/' already present!

Fixes: cabfb09d87bd ("bnxt_en: add debugfs support for DIM")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
23 months agonet: caif: fix double disconnect client in chnl_net_open()
Zhengchao Shao [Fri, 11 Nov 2022 01:47:34 +0000 (09:47 +0800)]
net: caif: fix double disconnect client in chnl_net_open()

When connecting to client timeout, disconnect client for twice in
chnl_net_open(). Remove one. Compile tested only.

Fixes: 2aa40aef9deb ("caif: Use link layer MTU instead of fixed MTU")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>