platform/kernel/linux-rpi.git
22 months agonet: sh_eth: Fix PHY state warning splat during system resume
Geert Uytterhoeven [Mon, 19 Sep 2022 14:48:28 +0000 (16:48 +0200)]
net: sh_eth: Fix PHY state warning splat during system resume

Since commit 744d23c71af39c7d ("net: phy: Warn about incorrect
mdio_bus_phy_resume() state"), a warning splat is printed during system
resume with Wake-on-LAN disabled:

WARNING: CPU: 0 PID: 626 at drivers/net/phy/phy_device.c:323 mdio_bus_phy_resume+0xbc/0xe4

As the Renesas SuperH Ethernet driver already calls phy_{stop,start}()
in its suspend/resume callbacks, it is sufficient to just mark the MAC
responsible for managing the power state of the PHY.

Fixes: fba863b816049b03 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/c6e1331b9bef61225fa4c09db3ba3e2e7214ba2d.1663598886.git.geert+renesas@glider.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: ravb: Fix PHY state warning splat during system resume
Geert Uytterhoeven [Mon, 19 Sep 2022 14:48:00 +0000 (16:48 +0200)]
net: ravb: Fix PHY state warning splat during system resume

Since commit 744d23c71af39c7d ("net: phy: Warn about incorrect
mdio_bus_phy_resume() state"), a warning splat is printed during system
resume with Wake-on-LAN disabled:

        WARNING: CPU: 0 PID: 1197 at drivers/net/phy/phy_device.c:323 mdio_bus_phy_resume+0xbc/0xc8

As the Renesas Ethernet AVB driver already calls phy_{stop,start}() in
its suspend/resume callbacks, it is sufficient to just mark the MAC
responsible for managing the power state of the PHY.

Fixes: fba863b816049b03 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/8ec796f47620980fdd0403e21bd8b7200b4fa1d4.1663598796.git.geert+renesas@glider.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonetfilter: nf_ct_ftp: fix deadlock when nat rewrite is needed
Florian Westphal [Tue, 20 Sep 2022 16:31:30 +0000 (18:31 +0200)]
netfilter: nf_ct_ftp: fix deadlock when nat rewrite is needed

We can't use ct->lock, this is already used by the seqadj internals.
When using ftp helper + nat, seqadj will attempt to acquire ct->lock
again.

Revert back to a global lock for now.

Fixes: c783a29c7e59 ("netfilter: nf_ct_ftp: prefer skb_linearize")
Reported-by: Bruno de Paula Larini <bruno.larini@riosoft.com.br>
Signed-off-by: Florian Westphal <fw@strlen.de>
22 months agonetfilter: ebtables: fix memory leak when blob is malformed
Florian Westphal [Tue, 20 Sep 2022 12:20:17 +0000 (14:20 +0200)]
netfilter: ebtables: fix memory leak when blob is malformed

The bug fix was incomplete, it "replaced" crash with a memory leak.
The old code had an assignment to "ret" embedded into the conditional,
restore this.

Fixes: 7997eff82828 ("netfilter: ebtables: reject blobs that don't provide all entry points")
Reported-and-tested-by: syzbot+a24c5252f3e3ab733464@syzkaller.appspotmail.com
Signed-off-by: Florian Westphal <fw@strlen.de>
22 months agonetfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()
Tetsuo Handa [Mon, 12 Sep 2022 13:58:51 +0000 (22:58 +0900)]
netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()

It seems to me that percpu memory for chain stats started leaking since
commit 3bc158f8d0330f0a ("netfilter: nf_tables: map basechain priority to
hardware priority") when nft_chain_offload_priority() returned an error.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 3bc158f8d0330f0a ("netfilter: nf_tables: map basechain priority to hardware priority")
Signed-off-by: Florian Westphal <fw@strlen.de>
22 months agonetfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()
Tetsuo Handa [Mon, 12 Sep 2022 12:41:00 +0000 (21:41 +0900)]
netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()

syzbot is reporting underflow of nft_counters_enabled counter at
nf_tables_addchain() [1], for commit 43eb8949cfdffa76 ("netfilter:
nf_tables: do not leave chain stats enabled on error") missed that
nf_tables_chain_destroy() after nft_basechain_init() in the error path of
nf_tables_addchain() decrements the counter because nft_basechain_init()
makes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag.

Increment the counter immediately after returning from
nft_basechain_init().

Link:  https://syzkaller.appspot.com/bug?extid=b5d82a651b71cd8a75ab [1]
Reported-by: syzbot <syzbot+b5d82a651b71cd8a75ab@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot <syzbot+b5d82a651b71cd8a75ab@syzkaller.appspotmail.com>
Fixes: 43eb8949cfdffa76 ("netfilter: nf_tables: do not leave chain stats enabled on error")
Signed-off-by: Florian Westphal <fw@strlen.de>
22 months agonetfilter: conntrack: remove nf_conntrack_helper documentation
Pablo Neira Ayuso [Fri, 9 Sep 2022 10:42:11 +0000 (12:42 +0200)]
netfilter: conntrack: remove nf_conntrack_helper documentation

This toggle has been already remove by b118509076b3 ("netfilter: remove
nf_conntrack_helper sysctl and modparam toggles").

Remove the documentation entry for this toggle too.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
22 months agoMAINTAINERS: Add myself as a reviewer for Qualcomm ETHQOS Ethernet driver
Bhupesh Sharma [Thu, 15 Sep 2022 11:28:04 +0000 (16:58 +0530)]
MAINTAINERS: Add myself as a reviewer for Qualcomm ETHQOS Ethernet driver

As suggested by Vinod, adding myself as the reviewer
for the Qualcomm ETHQOS Ethernet driver.

Recently I have enabled this driver on a few Qualcomm
SoCs / boards and hence trying to keep a close eye on
it.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20220915112804.3950680-1-bhupesh.sharma@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoice: Fix interface being down after reset with link-down-on-close flag on
Mateusz Palczewski [Fri, 26 Aug 2022 08:31:23 +0000 (10:31 +0200)]
ice: Fix interface being down after reset with link-down-on-close flag on

When performing a reset on ice driver with link-down-on-close flag on
interface would always stay down. Fix this by moving a check of this
flag to ice_stop() that is called only when user wants to bring
interface down.

Fixes: ab4ab73fc1ec ("ice: Add ethtool private flag to make forcing link down optional")
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Petr Oros <poros@redhat.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
22 months agoice: config netdev tc before setting queues number
Michal Swiatkowski [Mon, 8 Aug 2022 09:58:54 +0000 (11:58 +0200)]
ice: config netdev tc before setting queues number

After lowering number of tx queues the warning appears:
"Number of in use tx queues changed invalidating tc mappings. Priority
traffic classification disabled!"
Example command to reproduce:
ethtool -L enp24s0f0 tx 36 rx 36

Fix this by setting correct tc mapping before setting real number of
queues on netdev.

Fixes: 0754d65bd4be5 ("ice: Add infrastructure for mqprio support via ndo_setup_tc")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
22 months agoMerge branch 'fixes-for-tc-taprio-software-mode'
Jakub Kicinski [Tue, 20 Sep 2022 18:41:17 +0000 (11:41 -0700)]
Merge branch 'fixes-for-tc-taprio-software-mode'

Vladimir Oltean says:

====================
Fixes for tc-taprio software mode

While working on some new features for tc-taprio, I found some strange
behavior which looked like bugs. I was able to eventually trigger a NULL
pointer dereference. This patch set fixes 2 issues I saw. Detailed
explanation in patches.
====================

Link: https://lore.kernel.org/r/20220915100802.2308279-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet/sched: taprio: make qdisc_leaf() see the per-netdev-queue pfifo child qdiscs
Vladimir Oltean [Thu, 15 Sep 2022 10:08:02 +0000 (13:08 +0300)]
net/sched: taprio: make qdisc_leaf() see the per-netdev-queue pfifo child qdiscs

taprio can only operate as root qdisc, and to that end, there exists the
following check in taprio_init(), just as in mqprio:

if (sch->parent != TC_H_ROOT)
return -EOPNOTSUPP;

And indeed, when we try to attach taprio to an mqprio child, it fails as
expected:

$ tc qdisc add dev swp0 root handle 1: mqprio num_tc 8 \
map 0 1 2 3 4 5 6 7 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 hw 0
$ tc qdisc replace dev swp0 parent 1:2 taprio num_tc 8 \
map 0 1 2 3 4 5 6 7 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \
base-time 0 sched-entry S 0x7f 990000 sched-entry S 0x80 100000 \
flags 0x0 clockid CLOCK_TAI
Error: sch_taprio: Can only be attached as root qdisc.

(extack message added by me)

But when we try to attach a taprio child to a taprio root qdisc,
surprisingly it doesn't fail:

$ tc qdisc replace dev swp0 root handle 1: taprio num_tc 8 \
map 0 1 2 3 4 5 6 7 queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \
base-time 0 sched-entry S 0x7f 990000 sched-entry S 0x80 100000 \
flags 0x0 clockid CLOCK_TAI
$ tc qdisc replace dev swp0 parent 1:2 taprio num_tc 8 \
map 0 1 2 3 4 5 6 7 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \
base-time 0 sched-entry S 0x7f 990000 sched-entry S 0x80 100000 \
flags 0x0 clockid CLOCK_TAI

This is because tc_modify_qdisc() behaves differently when mqprio is
root, vs when taprio is root.

In the mqprio case, it finds the parent qdisc through
p = qdisc_lookup(dev, TC_H_MAJ(clid)), and then the child qdisc through
q = qdisc_leaf(p, clid). This leaf qdisc q has handle 0, so it is
ignored according to the comment right below ("It may be default qdisc,
ignore it"). As a result, tc_modify_qdisc() goes through the
qdisc_create() code path, and this gives taprio_init() a chance to check
for sch_parent != TC_H_ROOT and error out.

Whereas in the taprio case, the returned q = qdisc_leaf(p, clid) is
different. It is not the default qdisc created for each netdev queue
(both taprio and mqprio call qdisc_create_dflt() and keep them in
a private q->qdiscs[], or priv->qdiscs[], respectively). Instead, taprio
makes qdisc_leaf() return the _root_ qdisc, aka itself.

When taprio does that, tc_modify_qdisc() goes through the qdisc_change()
code path, because the qdisc layer never finds out about the child qdisc
of the root. And through the ->change() ops, taprio has no reason to
check whether its parent is root or not, just through ->init(), which is
not called.

The problem is the taprio_leaf() implementation. Even though code wise,
it does the exact same thing as mqprio_leaf() which it is copied from,
it works with different input data. This is because mqprio does not
attach itself (the root) to each device TX queue, but one of the default
qdiscs from its private array.

In fact, since commit 13511704f8d7 ("net: taprio offload: enforce qdisc
to netdev queue mapping"), taprio does this too, but just for the full
offload case. So if we tried to attach a taprio child to a fully
offloaded taprio root qdisc, it would properly fail too; just not to a
software root taprio.

To fix the problem, stop looking at the Qdisc that's attached to the TX
queue, and instead, always return the default qdiscs that we've
allocated (and to which we privately enqueue and dequeue, in software
scheduling mode).

Since Qdisc_class_ops :: leaf  is only called from tc_modify_qdisc(),
the risk of unforeseen side effects introduced by this change is
minimal.

Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet/sched: taprio: avoid disabling offload when it was never enabled
Vladimir Oltean [Thu, 15 Sep 2022 10:08:01 +0000 (13:08 +0300)]
net/sched: taprio: avoid disabling offload when it was never enabled

In an incredibly strange API design decision, qdisc->destroy() gets
called even if qdisc->init() never succeeded, not exclusively since
commit 87b60cfacf9f ("net_sched: fix error recovery at qdisc creation"),
but apparently also earlier (in the case of qdisc_create_dflt()).

The taprio qdisc does not fully acknowledge this when it attempts full
offload, because it starts off with q->flags = TAPRIO_FLAGS_INVALID in
taprio_init(), then it replaces q->flags with TCA_TAPRIO_ATTR_FLAGS
parsed from netlink (in taprio_change(), tail called from taprio_init()).

But in taprio_destroy(), we call taprio_disable_offload(), and this
determines what to do based on FULL_OFFLOAD_IS_ENABLED(q->flags).

But looking at the implementation of FULL_OFFLOAD_IS_ENABLED()
(a bitwise check of bit 1 in q->flags), it is invalid to call this macro
on q->flags when it contains TAPRIO_FLAGS_INVALID, because that is set
to U32_MAX, and therefore FULL_OFFLOAD_IS_ENABLED() will return true on
an invalid set of flags.

As a result, it is possible to crash the kernel if user space forces an
error between setting q->flags = TAPRIO_FLAGS_INVALID, and the calling
of taprio_enable_offload(). This is because drivers do not expect the
offload to be disabled when it was never enabled.

The error that we force here is to attach taprio as a non-root qdisc,
but instead as child of an mqprio root qdisc:

$ tc qdisc add dev swp0 root handle 1: \
mqprio num_tc 8 map 0 1 2 3 4 5 6 7 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 hw 0
$ tc qdisc replace dev swp0 parent 1:1 \
taprio num_tc 8 map 0 1 2 3 4 5 6 7 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 base-time 0 \
sched-entry S 0x7f 990000 sched-entry S 0x80 100000 \
flags 0x0 clockid CLOCK_TAI
Unable to handle kernel paging request at virtual address fffffffffffffff8
[fffffffffffffff8] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Call trace:
 taprio_dump+0x27c/0x310
 vsc9959_port_setup_tc+0x1f4/0x460
 felix_port_setup_tc+0x24/0x3c
 dsa_slave_setup_tc+0x54/0x27c
 taprio_disable_offload.isra.0+0x58/0xe0
 taprio_destroy+0x80/0x104
 qdisc_create+0x240/0x470
 tc_modify_qdisc+0x1fc/0x6b0
 rtnetlink_rcv_msg+0x12c/0x390
 netlink_rcv_skb+0x5c/0x130
 rtnetlink_rcv+0x1c/0x2c

Fix this by keeping track of the operations we made, and undo the
offload only if we actually did it.

I've added "bool offloaded" inside a 4 byte hole between "int clockid"
and "atomic64_t picos_per_byte". Now the first cache line looks like
below:

$ pahole -C taprio_sched net/sched/sch_taprio.o
struct taprio_sched {
        struct Qdisc * *           qdiscs;               /*     0     8 */
        struct Qdisc *             root;                 /*     8     8 */
        u32                        flags;                /*    16     4 */
        enum tk_offsets            tk_offset;            /*    20     4 */
        int                        clockid;              /*    24     4 */
        bool                       offloaded;            /*    28     1 */

        /* XXX 3 bytes hole, try to pack */

        atomic64_t                 picos_per_byte;       /*    32     0 */

        /* XXX 8 bytes hole, try to pack */

        spinlock_t                 current_entry_lock;   /*    40     0 */

        /* XXX 8 bytes hole, try to pack */

        struct sched_entry *       current_entry;        /*    48     8 */
        struct sched_gate_list *   oper_sched;           /*    56     8 */
        /* --- cacheline 1 boundary (64 bytes) --- */

Fixes: 9c66d1564676 ("taprio: Add support for hardware offloading")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoipv6: Fix crash when IPv6 is administratively disabled
Ido Schimmel [Fri, 16 Sep 2022 08:48:21 +0000 (11:48 +0300)]
ipv6: Fix crash when IPv6 is administratively disabled

The global 'raw_v6_hashinfo' variable can be accessed even when IPv6 is
administratively disabled via the 'ipv6.disable=1' kernel command line
option, leading to a crash [1].

Fix by restoring the original behavior and always initializing the
variable, regardless of IPv6 support being administratively disabled or
not.

[1]
 BUG: unable to handle page fault for address: ffffffffffffffc8
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 173e18067 P4D 173e18067 PUD 173e1a067 PMD 0
 Oops: 0000 [#1] PREEMPT SMP KASAN
 CPU: 3 PID: 271 Comm: ss Not tainted 6.0.0-rc4-custom-00136-g0727a9a5fbc1 #1396
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-1.fc36 04/01/2014
 RIP: 0010:raw_diag_dump+0x310/0x7f0
 [...]
 Call Trace:
  <TASK>
  __inet_diag_dump+0x10f/0x2e0
  netlink_dump+0x575/0xfd0
  __netlink_dump_start+0x67b/0x940
  inet_diag_handler_cmd+0x273/0x2d0
  sock_diag_rcv_msg+0x317/0x440
  netlink_rcv_skb+0x15e/0x430
  sock_diag_rcv+0x2b/0x40
  netlink_unicast+0x53b/0x800
  netlink_sendmsg+0x945/0xe60
  ____sys_sendmsg+0x747/0x960
  ___sys_sendmsg+0x13a/0x1e0
  __sys_sendmsg+0x118/0x1e0
  do_syscall_64+0x34/0x80
  entry_SYSCALL_64_after_hwframe+0x63/0xcd

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Fixes: 0daf07e52709 ("raw: convert raw sockets to RCU")
Reported-by: Roberto Ricci <rroberto2r@gmail.com>
Tested-by: Roberto Ricci <rroberto2r@gmail.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20220916084821.229287-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: enetc: deny offload of tc-based TSN features on VF interfaces
Vladimir Oltean [Fri, 16 Sep 2022 13:32:09 +0000 (16:32 +0300)]
net: enetc: deny offload of tc-based TSN features on VF interfaces

TSN features on the ENETC (taprio, cbs, gate, police) are configured
through a mix of command BD ring messages and port registers:
enetc_port_rd(), enetc_port_wr().

Port registers are a region of the ENETC memory map which are only
accessible from the PCIe Physical Function. They are not accessible from
the Virtual Functions.

Moreover, attempting to access these registers crashes the kernel:

$ echo 1 > /sys/bus/pci/devices/0000\:00\:00.0/sriov_numvfs
pci 0000:00:01.0: [1957:ef00] type 00 class 0x020001
fsl_enetc_vf 0000:00:01.0: Adding to iommu group 15
fsl_enetc_vf 0000:00:01.0: enabling device (0000 -> 0002)
fsl_enetc_vf 0000:00:01.0 eno0vf0: renamed from eth0
$ tc qdisc replace dev eno0vf0 root taprio num_tc 8 map 0 1 2 3 4 5 6 7 \
queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 base-time 0 \
sched-entry S 0x7f 900000 sched-entry S 0x80 100000 flags 0x2
Unable to handle kernel paging request at virtual address ffff800009551a08
Internal error: Oops: 96000007 [#1] PREEMPT SMP
pc : enetc_setup_tc_taprio+0x170/0x47c
lr : enetc_setup_tc_taprio+0x16c/0x47c
Call trace:
 enetc_setup_tc_taprio+0x170/0x47c
 enetc_setup_tc+0x38/0x2dc
 taprio_change+0x43c/0x970
 taprio_init+0x188/0x1e0
 qdisc_create+0x114/0x470
 tc_modify_qdisc+0x1fc/0x6c0
 rtnetlink_rcv_msg+0x12c/0x390

Split enetc_setup_tc() into separate functions for the PF and for the
VF drivers. Also remove enetc_qos.o from being included into
enetc-vf.ko, since it serves absolutely no purpose there.

Fixes: 34c6adf1977b ("enetc: Configure the Time-Aware Scheduler via tc-taprio offload")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220916133209.3351399-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: enetc: move enetc_set_psfp() out of the common enetc_set_features()
Vladimir Oltean [Fri, 16 Sep 2022 13:32:08 +0000 (16:32 +0300)]
net: enetc: move enetc_set_psfp() out of the common enetc_set_features()

The VF netdev driver shouldn't respond to changes in the NETIF_F_HW_TC
flag; only PFs should. Moreover, TSN-specific code should go to
enetc_qos.c, which should not be included in the VF driver.

Fixes: 79e499829f3f ("net: enetc: add hw tc hw offload features for PSPF capability")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220916133209.3351399-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoMerge branch 'wireguard-patches-for-6-0-rc6'
Jakub Kicinski [Tue, 20 Sep 2022 18:26:18 +0000 (11:26 -0700)]
Merge branch 'wireguard-patches-for-6-0-rc6'

Jason A. Donenfeld says:

====================
wireguard patches for 6.0-rc6

1) The ratelimiter timing test doesn't help outside of development, yet
   it is currently preventing the module from being inserted on some
   kernels when it flakes at insertion time. So we disable it.

2) A fix for a build error on UML, caused by a recent change in a
   different tree.

3) A WARN_ON() is triggered by Kees' new fortified memcpy() patch, due
   to memcpy()ing over a sockaddr pointer with the size of a
   sockaddr_in[6]. The type safe fix is pretty simple. Given how classic
   of a thing sockaddr punning is, I suspect this may be the first in a
   few patches like this throughout the net tree, once Kees' fortify
   series is more widely deployed (current it's just in next).
====================

Link: https://lore.kernel.org/r/20220916143740.831881-1-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agowireguard: netlink: avoid variable-sized memcpy on sockaddr
Jason A. Donenfeld [Fri, 16 Sep 2022 14:37:40 +0000 (15:37 +0100)]
wireguard: netlink: avoid variable-sized memcpy on sockaddr

Doing a variable-sized memcpy is slower, and the compiler isn't smart
enough to turn this into a constant-size assignment.

Further, Kees' latest fortified memcpy will actually bark, because the
destination pointer is type sockaddr, not explicitly sockaddr_in or
sockaddr_in6, so it thinks there's an overflow:

    memcpy: detected field-spanning write (size 28) of single field
    "&endpoint.addr" at drivers/net/wireguard/netlink.c:446 (size 16)

Fix this by just assigning by using explicit casts for each checked
case.

Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reported-by: syzbot+a448cda4dba2dac50de5@syzkaller.appspotmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agowireguard: selftests: do not install headers on UML
Jason A. Donenfeld [Fri, 16 Sep 2022 14:37:39 +0000 (15:37 +0100)]
wireguard: selftests: do not install headers on UML

Since 1b620d539ccc ("kbuild: disable header exports for UML in a
straightforward way"), installing headers fails on UML, so just disable
installing them, since they're not needed anyway on the architecture.

Fixes: b438b3b8d6e6 ("wireguard: selftests: support UML")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agowireguard: ratelimiter: disable timings test by default
Jason A. Donenfeld [Fri, 16 Sep 2022 14:37:38 +0000 (15:37 +0100)]
wireguard: ratelimiter: disable timings test by default

A previous commit tried to make the ratelimiter timings test more
reliable but in the process made it less reliable on other
configurations. This is an impossible problem to solve without
increasingly ridiculous heuristics. And it's not even a problem that
actually needs to be solved in any comprehensive way, since this is only
ever used during development. So just cordon this off with a DEBUG_
ifdef, just like we do for the trie's randomized tests, so it can be
enabled while hacking on the code, and otherwise disabled in CI. In the
process we also revert 151c8e499f47.

Fixes: 151c8e499f47 ("wireguard: ratelimiter: use hrtimer in selftest")
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agosfc/siena: fix null pointer dereference in efx_hard_start_xmit
Íñigo Huguet [Thu, 15 Sep 2022 14:19:58 +0000 (16:19 +0200)]
sfc/siena: fix null pointer dereference in efx_hard_start_xmit

Like in previous patch for sfc, prevent potential (but unlikely) NULL
pointer dereference.

Fixes: 12804793b17c ("sfc: decouple TXQ type from label")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Link: https://lore.kernel.org/r/20220915141958.16458-1-ihuguet@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agosfc/siena: fix TX channel offset when using legacy interrupts
Íñigo Huguet [Thu, 15 Sep 2022 14:16:53 +0000 (16:16 +0200)]
sfc/siena: fix TX channel offset when using legacy interrupts

As in previous commit for sfc, fix TX channels offset when
efx_siena_separate_tx_channels is false (the default)

Fixes: 25bde571b4a8 ("sfc/siena: fix wrong tx channel offset with efx_separate_tx_channels")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Link: https://lore.kernel.org/r/20220915141653.15504-1-ihuguet@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoMerge tag 'for-6.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Tue, 20 Sep 2022 17:23:24 +0000 (10:23 -0700)]
Merge tag 'for-6.0-rc6-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - two fixes for hangs in the umount sequence where threads depend on
   each other and the work must be finished in the right order

 - in zoned mode, wait for flushing all block group metadata IO before
   finishing the zone

* tag 'for-6.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: zoned: wait for extent buffer IOs before finishing a zone
  btrfs: fix hang during unmount when stopping a space reclaim worker
  btrfs: fix hang during unmount when stopping block group reclaim worker

22 months agoMerge tag 'fs.fixes.v6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs...
Linus Torvalds [Tue, 20 Sep 2022 17:08:37 +0000 (10:08 -0700)]
Merge tag 'fs.fixes.v6.0-rc7' of git://git./linux/kernel/git/vfs/idmapping

Pull vfs fix from Christian Brauner:
 "Beginning of the merge window we introduced the vfs{g,u}id_t types in
  b27c82e12965 ("attr: port attribute changes to new types") and changed
  various codepaths over including chown_common().

  When userspace passes -1 for an ownership change the ownership fields
  in struct iattr stay uninitialized. Usually this is fine because any
  code making use of any fields in struct iattr must check the
  ->ia_valid field whether the value of interest has been initialized.
  That's true for all struct iattr passing code.

  However, over the course of the last year with more heavy use of KMSAN
  we found quite a few places that got this wrong. A recent one I fixed
  was 3cb6ee991496 ("9p: only copy valid iattrs in 9P2000.L setattr
  implementation").

  But we also have LSM hooks. Actually we have two. The first one is
  security_inode_setattr() in notify_change() which does the right thing
  and passes the full struct iattr down to LSMs and thus LSMs can check
  whether it is initialized.

  But then we also have security_path_chown() which passes down a path
  argument and the target ownership as the filesystem would see it. For
  the latter we now generate the target values based on struct iattr and
  pass it down. However, when userspace passes -1 then struct iattr
  isn't initialized.

  This patch simply initializes ->ia_vfs{g,u}id with INVALID_VFS{G,U}ID
  so the hook continue to see invalid ownership when -1 is passed from
  userspace. The only LSM that cares about the actual values is Tomoyo.

  The vfs codepaths don't look at these fields without ->ia_valid being
  set so there's no harm in initializing ->ia_vfs{g,u}id. Arguably this
  is also safer since we can't end up copying valid ownership values
  when invalid ownership values should be passed.

  This only affects mainline. No kernel has been released with this and
  thus no backport is needed. The commit is thus marked with a Fixes:
  tag but annotated with "# mainline only" (I didn't quite remember what
  Greg said about how to tell stable autoselect to not bother with fixes
  for mainline only)"

* tag 'fs.fixes.v6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  open: always initialize ownership fields

22 months agoefi: efibc: Guard against allocation failure
Guilherme G. Piccoli [Fri, 9 Sep 2022 19:42:14 +0000 (16:42 -0300)]
efi: efibc: Guard against allocation failure

There is a single kmalloc in this driver, and it's not currently
guarded against allocation failure. Do it here by just bailing-out
the reboot handler, in case this tentative allocation fails.

Fixes: 416581e48679 ("efi: efibc: avoid efivar API for setting variables")
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
22 months agoMerge tag 'execve-v6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/kees...
Linus Torvalds [Tue, 20 Sep 2022 15:38:55 +0000 (08:38 -0700)]
Merge tag 'execve-v6.0-rc7' of git://git./linux/kernel/git/kees/linux

Pull execve reverts from Kees Cook:
 "The recent work to support time namespace unsharing turns out to have
  some undesirable corner cases, so rather than allowing the API to stay
  exposed for another release, it'd be best to remove it ASAP, with the
  replacement getting another cycle of testing. Nothing is known to use
  this yet, so no userspace breakage is expected.

  For more details, see:

    https://lore.kernel.org/lkml/ed418e43ad28b8688cfea2b7c90fce1c@ispras.ru

  Summary:

   - Remove the recent 'unshare time namespace on vfork+exec' feature
     (Andrei Vagin)"

* tag 'execve-v6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  Revert "fs/exec: allow to unshare a time namespace on vfork+exec"
  Revert "selftests/timens: add a test for vfork+exit"

22 months agonet: clear msg_get_inq in __get_compat_msghdr()
Tetsuo Handa [Wed, 14 Sep 2022 09:51:54 +0000 (18:51 +0900)]
net: clear msg_get_inq in __get_compat_msghdr()

syzbot is still complaining uninit-value in tcp_recvmsg(), for
commit 1228b34c8d0ecf6d ("net: clear msg_get_inq in __sys_recvfrom() and
__copy_msghdr_from_user()") missed that __get_compat_msghdr() is called
instead of copy_msghdr_from_user() when MSG_CMSG_COMPAT is specified.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 1228b34c8d0ecf6d ("net: clear msg_get_inq in __sys_recvfrom() and __copy_msghdr_from_user()")
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/d06d0f7f-696c-83b4-b2d5-70b5f2730a37@I-love.SAKURA.ne.jp
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoMerge branch 'ipmr-always-call-ip-6-_mr_forward-from-rcu-read-side-critical-section'
Jakub Kicinski [Tue, 20 Sep 2022 15:22:20 +0000 (08:22 -0700)]
Merge branch 'ipmr-always-call-ip-6-_mr_forward-from-rcu-read-side-critical-section'

Ido Schimmel says:

====================
ipmr: Always call ip{,6}_mr_forward() from RCU read-side critical section

Patch #1 fixes a bug in ipmr code.

Patch #2 adds corresponding test cases.
====================

Link: https://lore.kernel.org/r/20220914075339.4074096-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoselftests: forwarding: Add test cases for unresolved multicast routes
Ido Schimmel [Wed, 14 Sep 2022 07:53:39 +0000 (10:53 +0300)]
selftests: forwarding: Add test cases for unresolved multicast routes

Add IPv4 and IPv6 test cases for unresolved multicast routes, testing
that queued packets are forwarded after installing a matching (S, G)
route.

The test cases can be used to reproduce the bugs fixed in "ipmr: Always
call ip{,6}_mr_forward() from RCU read-side critical section".

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoipmr: Always call ip{,6}_mr_forward() from RCU read-side critical section
Ido Schimmel [Wed, 14 Sep 2022 07:53:38 +0000 (10:53 +0300)]
ipmr: Always call ip{,6}_mr_forward() from RCU read-side critical section

These functions expect to be called from RCU read-side critical section,
but this only happens when invoked from the data path via
ip{,6}_mr_input(). They can also be invoked from process context in
response to user space adding a multicast route which resolves a cache
entry with queued packets [1][2].

Fix by adding missing rcu_read_lock() / rcu_read_unlock() in these call
paths.

[1]
WARNING: suspicious RCU usage
6.0.0-rc3-custom-15969-g049d233c8bcc-dirty #1387 Not tainted
-----------------------------
net/ipv4/ipmr.c:84 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

rcu_scheduler_active = 2, debug_locks = 1
1 lock held by smcrouted/246:
 #0: ffffffff862389b0 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0x11c/0x1420

stack backtrace:
CPU: 0 PID: 246 Comm: smcrouted Not tainted 6.0.0-rc3-custom-15969-g049d233c8bcc-dirty #1387
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-1.fc36 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x91/0xb9
 vif_dev_read+0xbf/0xd0
 ipmr_queue_xmit+0x135/0x1ab0
 ip_mr_forward+0xe7b/0x13d0
 ipmr_mfc_add+0x1a06/0x2ad0
 ip_mroute_setsockopt+0x5c1/0x1420
 do_ip_setsockopt+0x23d/0x37f0
 ip_setsockopt+0x56/0x80
 raw_setsockopt+0x219/0x290
 __sys_setsockopt+0x236/0x4d0
 __x64_sys_setsockopt+0xbe/0x160
 do_syscall_64+0x34/0x80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

[2]
WARNING: suspicious RCU usage
6.0.0-rc3-custom-15969-g049d233c8bcc-dirty #1387 Not tainted
-----------------------------
net/ipv6/ip6mr.c:69 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

rcu_scheduler_active = 2, debug_locks = 1
1 lock held by smcrouted/246:
 #0: ffffffff862389b0 (rtnl_mutex){+.+.}-{3:3}, at: ip6_mroute_setsockopt+0x6b9/0x2630

stack backtrace:
CPU: 1 PID: 246 Comm: smcrouted Not tainted 6.0.0-rc3-custom-15969-g049d233c8bcc-dirty #1387
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-1.fc36 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x91/0xb9
 vif_dev_read+0xbf/0xd0
 ip6mr_forward2.isra.0+0xc9/0x1160
 ip6_mr_forward+0xef0/0x13f0
 ip6mr_mfc_add+0x1ff2/0x31f0
 ip6_mroute_setsockopt+0x1825/0x2630
 do_ipv6_setsockopt+0x462/0x4440
 ipv6_setsockopt+0x105/0x140
 rawv6_setsockopt+0xd8/0x690
 __sys_setsockopt+0x236/0x4d0
 __x64_sys_setsockopt+0xbe/0x160
 do_syscall_64+0x34/0x80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Fixes: ebc3197963fc ("ipmr: add rcu protection over (struct vif_device)->dev")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: ipa: properly limit modem routing table use
Alex Elder [Tue, 13 Sep 2022 20:46:02 +0000 (15:46 -0500)]
net: ipa: properly limit modem routing table use

IPA can route packets between IPA-connected entities.  The AP and
modem are currently the only such entities supported, and no routing
is required to transfer packets between them.

The number of entries in each routing table is fixed, and defined at
initialization time.  Some of these entries are designated for use
by the modem, and the rest are available for the AP to use.  The AP
sends a QMI message to the modem which describes (among other
things) information about routing table memory available for the
modem to use.

Currently the QMI initialization packet gives wrong information in
its description of routing tables.  What *should* be supplied is the
maximum index that the modem can use for the routing table memory
located at a given location.  The current code instead supplies the
total *number* of routing table entries.  Furthermore, the modem is
granted the entire table, not just the subset it's supposed to use.

This patch fixes this.  First, the ipa_mem_bounds structure is
generalized so its "end" field can be interpreted either as a final
byte offset, or a final array index.  Second, the IPv4 and IPv6
(non-hashed and hashed) table information fields in the QMI
ipa_init_modem_driver_req structure are changed to be ipa_mem_bounds
rather than ipa_mem_array structures.  Third, we set the "end" value
for each routing table to be the last index, rather than setting the
"count" to be the number of indices.  Finally, instead of allowing
the modem to use all of a routing table's memory, it is limited to
just the portion meant to be used by the modem.  In all versions of
IPA currently supported, that is IPA_ROUTE_MODEM_COUNT (8) entries.

Update a few comments for clarity.

Fixes: 530f9216a9537 ("soc: qcom: ipa: AP/modem communications")
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20220913204602.1803004-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoof: mdio: Add of_node_put() when breaking out of for_each_xx
Liang He [Tue, 13 Sep 2022 12:56:59 +0000 (20:56 +0800)]
of: mdio: Add of_node_put() when breaking out of for_each_xx

In of_mdiobus_register(), we should call of_node_put() for 'child'
escaped out of for_each_available_child_of_node().

Fixes: 66bdede495c7 ("of_mdio: Fix broken PHY IRQ in case of probe deferral")
Co-developed-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220913125659.3331969-1-windhl@126.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agodrm/i915/gem: Really move i915_gem_context.link under ref protection
Chris Wilson [Fri, 16 Sep 2022 09:24:03 +0000 (11:24 +0200)]
drm/i915/gem: Really move i915_gem_context.link under ref protection

i915_perf assumes that it can use the i915_gem_context reference to
protect its i915->gem.contexts.list iteration. However, this requires
that we do not remove the context from the list until after we drop the
final reference and release the struct. If, as currently, we remove the
context from the list during context_close(), the link.next pointer may
be poisoned while we are holding the context reference and cause a GPF:

[ 4070.573157] i915 0000:00:02.0: [drm:i915_perf_open_ioctl [i915]] filtering on ctx_id=0x1fffff ctx_id_mask=0x1fffff
[ 4070.574881] general protection fault, probably for non-canonical address 0xdead000000000100: 0000 [#1] PREEMPT SMP
[ 4070.574897] CPU: 1 PID: 284392 Comm: amd_performance Tainted: G            E     5.17.9 #180
[ 4070.574903] Hardware name: Intel Corporation NUC7i5BNK/NUC7i5BNB, BIOS BNKBL357.86A.0052.2017.0918.1346 09/18/2017
[ 4070.574907] RIP: 0010:oa_configure_all_contexts.isra.0+0x222/0x350 [i915]
[ 4070.574982] Code: 08 e8 32 6e 10 e1 4d 8b 6d 50 b8 ff ff ff ff 49 83 ed 50 f0 41 0f c1 04 24 83 f8 01 0f 84 e3 00 00 00 85 c0 0f 8e fa 00 00 00 <49> 8b 45 50 48 8d 70 b0 49 8d 45 50 48 39 44 24 10 0f 85 34 fe ff
[ 4070.574990] RSP: 0018:ffffc90002077b78 EFLAGS: 00010202
[ 4070.574995] RAX: 0000000000000002 RBX: 0000000000000002 RCX: 0000000000000000
[ 4070.575000] RDX: 0000000000000001 RSI: ffffc90002077b20 RDI: ffff88810ddc7c68
[ 4070.575004] RBP: 0000000000000001 R08: ffff888103242648 R09: fffffffffffffffc
[ 4070.575008] R10: ffffffff82c50bc0 R11: 0000000000025c80 R12: ffff888101bf1860
[ 4070.575012] R13: dead0000000000b0 R14: ffffc90002077c04 R15: ffff88810be5cabc
[ 4070.575016] FS:  00007f1ed50c0780(0000) GS:ffff88885ec80000(0000) knlGS:0000000000000000
[ 4070.575021] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4070.575025] CR2: 00007f1ed5590280 CR3: 000000010ef6f005 CR4: 00000000003706e0
[ 4070.575029] Call Trace:
[ 4070.575033]  <TASK>
[ 4070.575037]  lrc_configure_all_contexts+0x13e/0x150 [i915]
[ 4070.575103]  gen8_enable_metric_set+0x4d/0x90 [i915]
[ 4070.575164]  i915_perf_open_ioctl+0xbc0/0x1500 [i915]
[ 4070.575224]  ? asm_common_interrupt+0x1e/0x40
[ 4070.575232]  ? i915_oa_init_reg_state+0x110/0x110 [i915]
[ 4070.575290]  drm_ioctl_kernel+0x85/0x110
[ 4070.575296]  ? update_load_avg+0x5f/0x5e0
[ 4070.575302]  drm_ioctl+0x1d3/0x370
[ 4070.575307]  ? i915_oa_init_reg_state+0x110/0x110 [i915]
[ 4070.575382]  ? gen8_gt_irq_handler+0x46/0x130 [i915]
[ 4070.575445]  __x64_sys_ioctl+0x3c4/0x8d0
[ 4070.575451]  ? __do_softirq+0xaa/0x1d2
[ 4070.575456]  do_syscall_64+0x35/0x80
[ 4070.575461]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 4070.575467] RIP: 0033:0x7f1ed5c10397
[ 4070.575471] Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a9 da 0d 00 f7 d8 64 89 01 48
[ 4070.575478] RSP: 002b:00007ffd65c8d7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 4070.575484] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f1ed5c10397
[ 4070.575488] RDX: 00007ffd65c8d7c0 RSI: 0000000040106476 RDI: 0000000000000006
[ 4070.575492] RBP: 00005620972f9c60 R08: 000000000000000a R09: 0000000000000005
[ 4070.575496] R10: 000000000000000d R11: 0000000000000246 R12: 000000000000000a
[ 4070.575500] R13: 000000000000000d R14: 0000000000000000 R15: 00007ffd65c8d7c0
[ 4070.575505]  </TASK>
[ 4070.575507] Modules linked in: nls_ascii(E) nls_cp437(E) vfat(E) fat(E) i915(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) aesni_intel(E) crypto_simd(E) intel_gtt(E) cryptd(E) ttm(E) rapl(E) intel_cstate(E) drm_kms_helper(E) cfbfillrect(E) syscopyarea(E) cfbimgblt(E) intel_uncore(E) sysfillrect(E) mei_me(E) sysimgblt(E) i2c_i801(E) fb_sys_fops(E) mei(E) intel_pch_thermal(E) i2c_smbus(E) cfbcopyarea(E) video(E) button(E) efivarfs(E) autofs4(E)
[ 4070.575549] ---[ end trace 0000000000000000 ]---

v3: fix incorrect syntax of spin_lock() replacing spin_lock_irqsave()

v2: irqsave not required in a worker, neither conversion to irq safe
    elsewhere (Tvrtko),
  - perf: it's safe to call gen8_configure_context() even if context has
    been closed, no need to check,
  - drop unrelated cleanup (Andi, Tvrtko)

Reported-by: Mark Janes <mark.janes@intel.com>
Closes: https://gitlab.freedesktop.org/drm/intel/issues/6222
References: a4e7ccdac38e ("drm/i915: Move context management under GEM")
Fixes: f8246cf4d9a9 ("drm/i915/gem: Drop free_work for GEM contexts")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <stable@vger.kernel.org> # v5.12+
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916092403.201355-3-janusz.krzysztofik@linux.intel.com
(cherry picked from commit ad3aa7c31efa5a09b0dba42e66cfdf77e0db7dc2)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
22 months agodrm/i915/gem: Flush contexts on driver release
Janusz Krzysztofik [Fri, 16 Sep 2022 09:24:02 +0000 (11:24 +0200)]
drm/i915/gem: Flush contexts on driver release

Due to i915_perf assuming that it can use the i915_gem_context reference
to protect its i915->gem.contexts.list iteration, we need to defer removal
of the context from the list until last reference to the context is put.
However, there is a risk of triggering kernel warning on contexts list not
empty at driver release time if we deleagate that task to a worker for
i915_gem_context_release_work(), unless that work is flushed first.
Unfortunately, it is not flushed on driver release.  Fix it.

Instead of additionally calling flush_workqueue(), either directly or via
a new dedicated wrapper around it, replace last call to
i915_gem_drain_freed_objects() with existing i915_gem_drain_workqueue()
that performs both tasks.

Fixes: 75eefd82581f ("drm/i915: Release i915_gem_context from a worker")
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: stable@kernel.org # v5.16+
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916092403.201355-2-janusz.krzysztofik@linux.intel.com
(cherry picked from commit 1cec34442408a77ba5396b19725fed2c398005c3)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
22 months agogpio: ftgpio010: Make irqchip immutable
Linus Walleij [Thu, 15 Sep 2022 20:32:54 +0000 (22:32 +0200)]
gpio: ftgpio010: Make irqchip immutable

This turns the FTGPIO010 irqchip immutable.

Tested on the D-Link DIR-685.

Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
22 months agogpio: mockup: Fix potential resource leakage when register a chip
Andy Shevchenko [Tue, 20 Sep 2022 13:30:31 +0000 (16:30 +0300)]
gpio: mockup: Fix potential resource leakage when register a chip

If creation of software node fails, the locally allocated string
array is left unfreed. Free it on error path.

Fixes: 6fda593f3082 ("gpio: mockup: Convert to use software nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
22 months agogpio: mockup: fix NULL pointer dereference when removing debugfs
Bartosz Golaszewski [Tue, 20 Sep 2022 07:18:41 +0000 (09:18 +0200)]
gpio: mockup: fix NULL pointer dereference when removing debugfs

We now remove the device's debugfs entries when unbinding the driver.
This now causes a NULL-pointer dereference on module exit because the
platform devices are unregistered *after* the global debugfs directory
has been recursively removed. Fix it by unregistering the devices first.

Fixes: 303e6da99429 ("gpio: mockup: remove gpio debugfs when remove device")
Cc: Wei Yongjun <weiyongjun1@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
22 months agotcp: read multiple skbs in tcp_read_skb()
Cong Wang [Mon, 12 Sep 2022 17:35:53 +0000 (10:35 -0700)]
tcp: read multiple skbs in tcp_read_skb()

Before we switched to ->read_skb(), ->read_sock() was passed with
desc.count=1, which technically indicates we only read one skb per
->sk_data_ready() call. However, for TCP, this is not true.

TCP at least has sk_rcvlowat which intentionally holds skb's in
receive queue until this watermark is reached. This means when
->sk_data_ready() is invoked there could be multiple skb's in the
queue, therefore we have to read multiple skbs in tcp_read_skb()
instead of one.

Fixes: 965b57b469a5 ("net: Introduce a new proto_ops ->read_skb()")
Reported-by: Peilin Ye <peilin.ye@bytedance.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Jakub Sitnicki <jakub@cloudflare.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Link: https://lore.kernel.org/r/20220912173553.235838-1-xiyou.wangcong@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
22 months agoRevert "ALSA: usb-audio: Split endpoint setups for hw_params and prepare"
Takashi Iwai [Tue, 20 Sep 2022 11:39:29 +0000 (13:39 +0200)]
Revert "ALSA: usb-audio: Split endpoint setups for hw_params and prepare"

This reverts commit ff878b408a03bef5d610b7e2302702e16a53636e.

Unfortunately the recent fix seems bringing another regressions with
PulseAudio / pipewire, at least for Steinberg and MOTU devices.

As a temporary solution, do a straight revert.  The issue for Android
will be revisited again later by another different fix (if any).

Fixes: ff878b408a03 ("ALSA: usb-audio: Split endpoint setups for hw_params and prepare")
Cc: <stable@vger.kernel.org>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216500
Link: https://lore.kernel.org/r/20220920113929.25162-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
22 months agoMerge branch 'revert-fec-ptp-changes'
Paolo Abeni [Tue, 20 Sep 2022 10:18:08 +0000 (12:18 +0200)]
Merge branch 'revert-fec-ptp-changes'

Francesco Dolcini says:

====================
Revert fec PTP changes

Revert the last 2 FEC PTP changes from Csókás Bence, they are causing multiple
issues and we are at 6.0-rc5.
====================

Link: https://lore.kernel.org/r/20220912070143.98153-1-francesco.dolcini@toradex.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
22 months agoRevert "net: fec: Use a spinlock to guard `fep->ptp_clk_on`"
Francesco Dolcini [Mon, 12 Sep 2022 07:01:43 +0000 (09:01 +0200)]
Revert "net: fec: Use a spinlock to guard `fep->ptp_clk_on`"

This reverts commit b353b241f1eb9b6265358ffbe2632fdcb563354f, this is
creating multiple issues, just not ready to be merged yet.

Link: https://lore.kernel.org/all/CAHk-=wj1obPoTu1AHj9Bd_BGYjdjDyPP+vT5WMj8eheb3A9WHw@mail.gmail.com/
Link: https://lore.kernel.org/all/20220907143915.5w65kainpykfobte@pengutronix.de/
Fixes: b353b241f1eb ("net: fec: Use a spinlock to guard `fep->ptp_clk_on`")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
22 months agoRevert "fec: Restart PPS after link state change"
Francesco Dolcini [Mon, 12 Sep 2022 07:01:42 +0000 (09:01 +0200)]
Revert "fec: Restart PPS after link state change"

This reverts commit f79959220fa5fbda939592bf91c7a9ea90419040, this is
creating multiple issues, just not ready to be merged yet.

Link: https://lore.kernel.org/all/20220905180542.GA3685102@roeck-us.net/
Link: https://lore.kernel.org/all/CAHk-=wj1obPoTu1AHj9Bd_BGYjdjDyPP+vT5WMj8eheb3A9WHw@mail.gmail.com/
Fixes: f79959220fa5 ("fec: Restart PPS after link state change")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
22 months agonet: dsa: microchip: lan937x: fix maximum frame length check
Rakesh Sankaranarayanan [Mon, 12 Sep 2022 05:12:28 +0000 (10:42 +0530)]
net: dsa: microchip: lan937x: fix maximum frame length check

Maximum frame length check is enabled in lan937x switch on POR, But it
is found to be disabled on driver during port setup operation. Due to
this, packets are not dropped when transmitted with greater than configured
value. For testing, setup made for lan1->lan2 transmission and configured
lan1 interface with a frame length (less than 1500 as mentioned in
documentation) and transmitted packets with greater than configured value.
Expected no packets at lan2 end, but packets observed at lan2.

Based on the documentation, packets should get discarded if the actual
packet length doesn't match the frame length configured. Frame length check
should be disabled only for cascaded ports due to tailtags.

This feature was disabled on ksz9477 series due to ptp issue, which is
not in lan937x series. But since lan937x took ksz9477 as base, frame
length check disabled here as well. Patch added to remove this portion
from port setup so that maximum frame length check will be active for
normal ports.

Fixes: 55ab6ffaf378 ("net: dsa: microchip: add DSA support for microchip LAN937x")
Signed-off-by: Rakesh Sankaranarayanan <rakesh.sankaranarayanan@microchip.com>
Link: https://lore.kernel.org/r/20220912051228.1306074-1-rakesh.sankaranarayanan@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
22 months agoopen: always initialize ownership fields
Tetsuo Handa [Mon, 19 Sep 2022 11:05:12 +0000 (20:05 +0900)]
open: always initialize ownership fields

Beginning of the merge window we introduced the vfs{g,u}id_t types in
b27c82e12965 ("attr: port attribute changes to new types") and changed
various codepaths over including chown_common().

During that change we forgot to account for the case were the passed
ownership value is -1. In this case the ownership fields in struct iattr
aren't initialized but we rely on them being initialized by the time we
generate the ownership to pass down to the LSMs. All the major LSMs
don't care about the ownership values at all. Only Tomoyo uses them and
so it took a while for syzbot to unearth this issue.

Fix this by initializing the ownership fields and do it within the
retry_deleg block. While notify_change() doesn't alter the ownership
fields currently we shouldn't rely on it.

Since no kernel has been released with these changes this does not
needed to be backported to any stable kernels.

[Christian Brauner (Microsoft) <brauner@kernel.org>]
* rewrote commit message
* use INVALID_VFS{G,U}ID macros

Fixes: b27c82e12965 ("attr: port attribute changes to new types") # mainline only
Reported-and-tested-by: syzbot+541e21dcc32c4046cba9@syzkaller.appspotmail.com
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Seth Forshee (DigitalOcean) <sforshee@kernel.org>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
22 months agodrm/hisilicon: Add depends on MMU
Randy Dunlap [Tue, 31 May 2022 02:55:57 +0000 (19:55 -0700)]
drm/hisilicon: Add depends on MMU

The Kconfig symbol depended on MMU but was dropped by the commit
acad3fe650a5 ("drm/hisilicon: Removed the dependency on the mmu")
because it already had as a dependency ARM64 that already selects MMU.

But later, commit a0f25a6bb319 ("drm/hisilicon/hibmc: Allow to be built
if COMPILE_TEST is enabled") allowed the driver to be built for non-ARM64
when COMPILE_TEST is set but that could lead to unmet direct dependencies
and linking errors.

Prevent a kconfig warning when MMU is not enabled by making
DRM_HISI_HIBMC depend on MMU.

WARNING: unmet direct dependencies detected for DRM_TTM
  Depends on [n]: HAS_IOMEM [=y] && DRM [=m] && MMU [=n]
  Selected by [m]:
  - DRM_TTM_HELPER [=m] && HAS_IOMEM [=y] && DRM [=m]
  - DRM_HISI_HIBMC [=m] && HAS_IOMEM [=y] && DRM [=m] && PCI [=y] && (ARM64 || COMPILE_TEST [=y])

Fixes: acad3fe650a5 ("drm/hisilicon: Removed the dependency on the mmu")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: John Stultz <jstultz@google.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Chen Feng <puck.chen@hisilicon.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220531025557.29593-1-rdunlap@infradead.org
22 months agodrm/mgag200: Force 32 bpp on the console
Thomas Zimmermann [Thu, 15 Sep 2022 15:03:48 +0000 (17:03 +0200)]
drm/mgag200: Force 32 bpp on the console

G200ER does not seem to support 24 bpp, so force the console to
use 32 bpp. The problem got introduced when commit 73f54d5d9682
("drm/mgag200: Remove special case for G200SE with <2 MiB") changed
the preferred color depth from 32 bit to 24 bit.

A setting of 24 is the correct color depth, but G200ER doesn't seem
to be able to use the respective RGB888 color format. Using 24-bit
color with forced 32 bpp works around the problem.

Reported-by: Wang Yugui <wangyugui@e16-tech.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Wang Yugui <wangyugui@e16-tech.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Fixes: 73f54d5d9682 ("drm/mgag200: Remove special case for G200SE with <2 MiB")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220915150348.31504-1-tzimmermann@suse.de
22 months agogve: Fix GFP flags when allocing pages
Shailend Chand [Tue, 13 Sep 2022 00:09:01 +0000 (17:09 -0700)]
gve: Fix GFP flags when allocing pages

Use GFP_ATOMIC when allocating pages out of the hotpath,
continue to use GFP_KERNEL when allocating pages during setup.

GFP_KERNEL will allow blocking which allows it to succeed
more often in a low memory enviornment but in the hotpath we do
not want to allow the allocation to block.

Fixes: 9b8dd5e5ea48b ("gve: DQO: Add RX path")
Signed-off-by: Shailend Chand <shailend@google.com>
Signed-off-by: Jeroen de Borst <jeroendb@google.com>
Link: https://lore.kernel.org/r/20220913000901.959546-1-jeroendb@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agobnxt_en: fix flags to check for supported fw version
Vadim Fedorenko [Thu, 15 Sep 2022 23:49:32 +0000 (02:49 +0300)]
bnxt_en: fix flags to check for supported fw version

The warning message of unsupported FW appears every time RX timestamps
are disabled on the interface. The patch fixes the flags to correct set
for the check.

Fixes: 66ed81dcedc6 ("bnxt_en: Enable packet timestamping for all RX packets")
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20220915234932.25497-1-vfedorenko@novek.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoMerge tag 'wireless-2022-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git...
Jakub Kicinski [Tue, 20 Sep 2022 01:17:22 +0000 (18:17 -0700)]
Merge tag 'wireless-2022-09-19' of git://git./linux/kernel/git/wireless/wireless

Kalle Valo says:

====================
wireless fixes for v6.0

Late stage fixes for v6.0. Temporarily mark iwlwifi's mei code broken
as it breaks suspend for iwd users and also don't spam nss trimming
messages. mt76 has fixes for aggregation sequence numbers and a
regression related to the VHT extended NSS BW feature.

* tag 'wireless-2022-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: mt76: fix 5 GHz connection regression on mt76x0/mt76x2
  wifi: mt76: fix reading current per-tid starting sequence number for aggregation
  wifi: iwlwifi: Mark IWLMEI as broken
  wifi: iwlwifi: don't spam logs with NSS>2 messages
====================

Link: https://lore.kernel.org/r/20220919105003.1EAE7C433B5@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoMerge tag 'batadv-net-pullrequest-20220916' of git://git.open-mesh.org/linux-merge
Jakub Kicinski [Tue, 20 Sep 2022 01:13:43 +0000 (18:13 -0700)]
Merge tag 'batadv-net-pullrequest-20220916' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
Here is a batman-adv bugfix:

 - Fix hang up with small MTU hard-interface, by Shigeru Yoshida

* tag 'batadv-net-pullrequest-20220916' of git://git.open-mesh.org/linux-merge:
  batman-adv: Fix hang up with small MTU hard-interface
====================

Link: https://lore.kernel.org/r/20220916160931.1412407-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agosfc: fix null pointer dereference in efx_hard_start_xmit
Íñigo Huguet [Wed, 14 Sep 2022 11:11:35 +0000 (13:11 +0200)]
sfc: fix null pointer dereference in efx_hard_start_xmit

Trying to get the channel from the tx_queue variable here is wrong
because we can only be here if tx_queue is NULL, so we shouldn't
dereference it. As the above comment in the code says, this is very
unlikely to happen, but it's wrong anyway so let's fix it.

I hit this issue because of a different bug that caused tx_queue to be
NULL. If that happens, this is the error message that we get here:
  BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
  [...]
  RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc]

Fixes: 12804793b17c ("sfc: decouple TXQ type from label")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20220914111135.21038-1-ihuguet@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agosfc: fix TX channel offset when using legacy interrupts
Íñigo Huguet [Wed, 14 Sep 2022 10:36:48 +0000 (12:36 +0200)]
sfc: fix TX channel offset when using legacy interrupts

In legacy interrupt mode the tx_channel_offset was hardcoded to 1, but
that's not correct if efx_sepparate_tx_channels is false. In that case,
the offset is 0 because the tx queues are in the single existing channel
at index 0, together with the rx queue.

Without this fix, as soon as you try to send any traffic, it tries to
get the tx queues from an uninitialized channel getting these errors:
  WARNING: CPU: 1 PID: 0 at drivers/net/ethernet/sfc/tx.c:540 efx_hard_start_xmit+0x12e/0x170 [sfc]
  [...]
  RIP: 0010:efx_hard_start_xmit+0x12e/0x170 [sfc]
  [...]
  Call Trace:
   <IRQ>
   dev_hard_start_xmit+0xd7/0x230
   sch_direct_xmit+0x9f/0x360
   __dev_queue_xmit+0x890/0xa40
  [...]
  BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
  [...]
  RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc]
  [...]
  Call Trace:
   <IRQ>
   dev_hard_start_xmit+0xd7/0x230
   sch_direct_xmit+0x9f/0x360
   __dev_queue_xmit+0x890/0xa40
  [...]

Fixes: c308dfd1b43e ("sfc: fix wrong tx channel offset with efx_separate_tx_channels")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20220914103648.16902-1-ihuguet@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoMerge tag 'for-net-2022-09-09' of git://git.kernel.org/pub/scm/linux/kernel/git/bluet...
Jakub Kicinski [Tue, 20 Sep 2022 01:01:04 +0000 (18:01 -0700)]
Merge tag 'for-net-2022-09-09' of git://git./linux/kernel/git/bluetooth/bluetooth

Luiz Augusto von Dentz says:

====================
bluetooth pull request for net:

 - Fix HCIGETDEVINFO regression

* tag 'for-net-2022-09-09' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
  Bluetooth: Fix HCIGETDEVINFO regression
====================

Link: https://lore.kernel.org/r/20220909201642.3810565-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: ethernet: mtk_eth_soc: enable XDP support just for MT7986 SoC
Lorenzo Bianconi [Tue, 13 Sep 2022 13:03:05 +0000 (15:03 +0200)]
net: ethernet: mtk_eth_soc: enable XDP support just for MT7986 SoC

Disable page_pool/XDP support for MT7621 SoC in order fix a regression
introduce adding XDP for MT7986 SoC. There is no a real use case for XDP
on MT7621 since it is a low-end cpu. Moreover this patch reduces the
memory footprint.

Tested-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Fixes: 23233e577ef9 ("net: ethernet: mtk_eth_soc: rely on page_pool for single page buffers")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/2bf31e27b888c43228b0d84dd2ef5033338269e2.1663074002.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonet: mana: Add rmb after checking owner bits
Haiyang Zhang [Sun, 11 Sep 2022 20:40:05 +0000 (13:40 -0700)]
net: mana: Add rmb after checking owner bits

Per GDMA spec, rmb is necessary after checking owner_bits, before
reading EQ or CQ entries.

Add rmb in these two places to comply with the specs.

Cc: stable@vger.kernel.org
Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Reported-by: Sinan Kaya <Sinan.Kaya@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Link: https://lore.kernel.org/r/1662928805-15861-1-git-send-email-haiyangz@microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoMAINTAINERS: gve: update developers
Jeroen de Borst [Tue, 13 Sep 2022 18:53:19 +0000 (11:53 -0700)]
MAINTAINERS: gve: update developers

Updating active developers.

Signed-off-by: Jeroen de Borst <jeroendb@google.com>
Link: https://lore.kernel.org/r/20220913185319.1061909-1-jeroendb@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agonetdevsim: Fix hwstats debugfs file permissions
Ido Schimmel [Fri, 9 Sep 2022 15:38:30 +0000 (18:38 +0300)]
netdevsim: Fix hwstats debugfs file permissions

The hwstats debugfs files are only writeable, but they are created with
read and write permissions, causing certain selftests to fail [1].

Fix by creating the files with write permission only.

[1]
 # ./test_offload.py
 Test destruction of generic XDP...
 Traceback (most recent call last):
   File "/home/idosch/code/linux/tools/testing/selftests/bpf/./test_offload.py", line 810, in <module>
     simdev = NetdevSimDev()
 [...]
 Exception: Command failed: cat /sys/kernel/debug/netdevsim/netdevsim0//ports/0/dev/hwstats/l3/disable_ifindex

 cat: /sys/kernel/debug/netdevsim/netdevsim0//ports/0/dev/hwstats/l3/disable_ifindex: Invalid argument

Fixes: 1a6d7ae7d63c ("netdevsim: Introduce support for L3 offload xstats")
Reported-by: Jie2x Zhou <jie2x.zhou@intel.com>
Tested-by: Jie2x Zhou <jie2x.zhou@intel.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20220909153830.3732504-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoi40e: Fix set max_tx_rate when it is lower than 1 Mbps
Michal Jaron [Thu, 1 Sep 2022 07:49:33 +0000 (09:49 +0200)]
i40e: Fix set max_tx_rate when it is lower than 1 Mbps

While converting max_tx_rate from bytes to Mbps, this value was set to 0,
if the original value was lower than 125000 bytes (1 Mbps). This would
cause no transmission rate limiting to occur. This happened due to lack of
check of max_tx_rate against the 1 Mbps value for max_tx_rate and the
following division by 125000. Fix this issue by adding a helper
i40e_bw_bytes_to_mbits() which sets max_tx_rate to minimum usable value of
50 Mbps, if its value is less than 1 Mbps, otherwise do the required
conversion by dividing by 125000.

Fixes: 5ecae4120a6b ("i40e: Refactor VF BW rate limiting")
Signed-off-by: Michal Jaron <michalx.jaron@intel.com>
Signed-off-by: Andrii Staikov <andrii.staikov@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
22 months agoi40e: Fix VF set max MTU size
Michal Jaron [Tue, 13 Sep 2022 13:38:36 +0000 (15:38 +0200)]
i40e: Fix VF set max MTU size

Max MTU sent to VF is set to 0 during memory allocation. It cause
that max MTU on VF is changed to IAVF_MAX_RXBUFFER and does not
depend on data from HW.

Set max_mtu field in virtchnl_vf_resource struct to inform
VF in GET_VF_RESOURCES msg what size should be max frame.

Fixes: dab86afdbbd1 ("i40e/i40evf: Change the way we limit the maximum frame size for Rx")
Signed-off-by: Michal Jaron <michalx.jaron@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
22 months agoiavf: Fix set max MTU size with port VLAN and jumbo frames
Michal Jaron [Tue, 13 Sep 2022 13:38:35 +0000 (15:38 +0200)]
iavf: Fix set max MTU size with port VLAN and jumbo frames

After setting port VLAN and MTU to 9000 on VF with ice driver there
was an iavf error
"PF returned error -5 (IAVF_ERR_PARAM) to our request 6".

During queue configuration, VF's max packet size was set to
IAVF_MAX_RXBUFFER but on ice max frame size was smaller by VLAN_HLEN
due to making some space for port VLAN as VF is not aware whether it's
in a port VLAN. This mismatch in sizes caused ice to reject queue
configuration with ERR_PARAM error. Proper max_mtu is sent from ice PF
to VF with GET_VF_RESOURCES msg but VF does not look at this.

In iavf change max_frame from IAVF_MAX_RXBUFFER to max_mtu
received from pf with GET_VF_RESOURCES msg to make vf's
max_frame_size dependent from pf. Add check if received max_mtu is
not in eligible range then set it to IAVF_MAX_RXBUFFER.

Fixes: dab86afdbbd1 ("i40e/i40evf: Change the way we limit the maximum frame size for Rx")
Signed-off-by: Michal Jaron <michalx.jaron@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
22 months agomlxbf_gige: clear MDIO gateway lock after read
David Thompson [Fri, 2 Sep 2022 16:42:47 +0000 (12:42 -0400)]
mlxbf_gige: clear MDIO gateway lock after read

The MDIO gateway (GW) lock in BlueField-2 GIGE logic is
set after read.  This patch adds logic to make sure the
lock is always cleared at the end of each MDIO transaction.

Fixes: f92e1869d74e ("Add Mellanox BlueField Gigabit Ethernet driver")
Reviewed-by: Asmaa Mnebhi <asmaa@nvidia.com>
Signed-off-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20220902164247.19862-1-davthompson@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
22 months agoiavf: Fix bad page state
Norbert Zulinski [Wed, 14 Sep 2022 13:39:13 +0000 (15:39 +0200)]
iavf: Fix bad page state

Fix bad page state, free inappropriate page in handling dummy
descriptor. iavf_build_skb now has to check not only if rx_buffer is
NULL but also if size is zero, same thing in iavf_clean_rx_irq.
Without this patch driver would free page that will be used
by napi_build_skb.

Fixes: a9f49e006030 ("iavf: Fix handling of dummy receive descriptors")
Signed-off-by: Norbert Zulinski <norbertx.zulinski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
22 months agoum: Prevent KASAN splats in dump_stack()
Vincent Whitchurch [Wed, 7 Sep 2022 10:05:33 +0000 (12:05 +0200)]
um: Prevent KASAN splats in dump_stack()

Use READ_ONCE_NOCHECK() when reading the stack to prevent KASAN splats
when dump_stack() is used.

Fixes: 5b301409e8bc5d7fad ("UML: add support for KASAN under x86_64")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
22 months agoum: fix default console kernel parameter
Christian Lamparter [Sat, 6 Aug 2022 19:52:22 +0000 (21:52 +0200)]
um: fix default console kernel parameter

OpenWrt's UML with 5.15 was producing odd errors/warnings during preinit
part of the early userspace portion:

|[    0.000000] Kernel command line: ubd0=root.img root=98:0 console=tty
|[...]
|[    0.440000] random: jshn: uninitialized urandom read (4 bytes read)
|[    0.460000] random: jshn: uninitialized urandom read (4 bytes read)
|/etc/preinit: line 47: can't create /dev/tty: No such device or address
|/etc/preinit: line 48: can't create /dev/tty: No such device or address
|/etc/preinit: line 58: can't open /dev/tty: No such device or address
|[...] repeated many times

That "/dev/tty" came from the command line (which is automatically
added if no console= parameter was specified for the uml binary).

The TLDP project tells the following about the /dev/tty:
<https://tldp.org/HOWTO/Text-Terminal-HOWTO-7.html#ss7.3>
| /dev/tty stands for the controlling terminal (if any) for the current
| process.[...]
| /dev/tty is something like a link to the actually terminal device[..]

The "(if any)" is important here, since it's possible for processes to
not have a controlling terminal.

I think this was a simple typo and the author wanted tty0 there.

CC: Thomas Meyer <thomas@m3y3r.de>
Fixes: d7ffac33631b ("um: stdio_console: Make preferred console")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
22 months agoum: Cleanup compiler warning in arch/x86/um/tls_32.c
Lukas Straub [Fri, 26 Aug 2022 15:29:31 +0000 (15:29 +0000)]
um: Cleanup compiler warning in arch/x86/um/tls_32.c

arch.tls_array is statically allocated so checking for NULL doesn't
make sense. This causes the compiler warning below.

Remove the checks to silence these warnings.

../arch/x86/um/tls_32.c: In function 'get_free_idx':
../arch/x86/um/tls_32.c:68:13: warning: the comparison will always evaluate as 'true' for the address of 'tls_array' will never be NULL [-Waddress]
   68 |         if (!t->arch.tls_array)
      |             ^
In file included from ../arch/x86/um/asm/processor.h:10,
                 from ../include/linux/rcupdate.h:30,
                 from ../include/linux/rculist.h:11,
                 from ../include/linux/pid.h:5,
                 from ../include/linux/sched.h:14,
                 from ../arch/x86/um/tls_32.c:7:
../arch/x86/um/asm/processor_32.h:22:31: note: 'tls_array' declared here
   22 |         struct uml_tls_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
      |                               ^~~~~~~~~
../arch/x86/um/tls_32.c: In function 'get_tls_entry':
../arch/x86/um/tls_32.c:243:13: warning: the comparison will always evaluate as 'true' for the address of 'tls_array' will never be NULL [-Waddress]
  243 |         if (!t->arch.tls_array)
      |             ^
../arch/x86/um/asm/processor_32.h:22:31: note: 'tls_array' declared here
   22 |         struct uml_tls_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
      |                               ^~~~~~~~~

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Richard Weinberger <richard@nod.at>
22 months agoum: Cleanup syscall_handler_t cast in syscalls_32.h
Lukas Straub [Fri, 26 Aug 2022 15:29:27 +0000 (15:29 +0000)]
um: Cleanup syscall_handler_t cast in syscalls_32.h

Like in f4f03f299a56ce4d73c5431e0327b3b6cb55ebb9
"um: Cleanup syscall_handler_t definition/cast, fix warning",
remove the cast to to fix the compiler warning.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Richard Weinberger <richard@nod.at>
22 months agoKVM: arm64: Use kmemleak_free_part_phys() to unregister hyp_mem_base
Zenghui Yu [Thu, 8 Sep 2022 13:06:59 +0000 (21:06 +0800)]
KVM: arm64: Use kmemleak_free_part_phys() to unregister hyp_mem_base

With commit 0c24e061196c ("mm: kmemleak: add rbtree and store physical
address for objects allocated with PA"), kmemleak started to put the
objects allocated with physical address onto object_phys_tree_root tree.
The kmemleak_free_part() therefore no longer worked as expected on
physically allocated objects (hyp_mem_base in this case) as it attempted to
search and remove things in object_tree_root tree.

Fix it by using kmemleak_free_part_phys() to unregister hyp_mem_base. This
fixes an immediate crash when booting a KVM host in protected mode with
kmemleak enabled.

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220908130659.2021-1-yuzenghui@huawei.com
22 months agoMIPS: Loongson32: Fix PHY-mode being left unspecified
Serge Semin [Sun, 11 Sep 2022 16:10:09 +0000 (00:10 +0800)]
MIPS: Loongson32: Fix PHY-mode being left unspecified

commit 0060c8783330 ("net: stmmac: implement support for passive mode
converters via dt") has changed the plat->interface field semantics from
containing the PHY-mode to specifying the MAC-PCS interface mode. Due to
that the loongson32 platform code will leave the phylink interface
uninitialized with the PHY-mode intended by the means of the actual
platform setup. The commit-author most likely has just missed the
arch-specific code to fix. Let's mend the Loongson32 platform code then by
assigning the PHY-mode to the phy_interface field of the STMMAC platform
data.

Fixes: 0060c8783330 ("net: stmmac: implement support for passive mode converters via dt")
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Tested-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
22 months agoMIPS: lantiq: export clk_get_io() for lantiq_wdt.ko
Randy Dunlap [Sat, 17 Sep 2022 23:25:40 +0000 (16:25 -0700)]
MIPS: lantiq: export clk_get_io() for lantiq_wdt.ko

The lantiq WDT driver uses clk_get_io(), which is not exported,
so export it to fix a build error:

ERROR: modpost: "clk_get_io" [drivers/watchdog/lantiq_wdt.ko] undefined!

Fixes: 287e3f3f4e68 ("MIPS: lantiq: implement support for clkdev api")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: John Crispin <john@phrozen.org>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
22 months agomm/slab_common: fix possible double free of kmem_cache
Feng Tang [Mon, 19 Sep 2022 03:12:41 +0000 (11:12 +0800)]
mm/slab_common: fix possible double free of kmem_cache

When doing slub_debug test, kfence's 'test_memcache_typesafe_by_rcu'
kunit test case cause a use-after-free error:

  BUG: KASAN: use-after-free in kobject_del+0x14/0x30
  Read of size 8 at addr ffff888007679090 by task kunit_try_catch/261

  CPU: 1 PID: 261 Comm: kunit_try_catch Tainted: G    B            N 6.0.0-rc5-next-20220916 #17
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
  Call Trace:
   <TASK>
   dump_stack_lvl+0x34/0x48
   print_address_description.constprop.0+0x87/0x2a5
   print_report+0x103/0x1ed
   kasan_report+0xb7/0x140
   kobject_del+0x14/0x30
   kmem_cache_destroy+0x130/0x170
   test_exit+0x1a/0x30
   kunit_try_run_case+0xad/0xc0
   kunit_generic_run_threadfn_adapter+0x26/0x50
   kthread+0x17b/0x1b0
   </TASK>

The cause is inside kmem_cache_destroy():

kmem_cache_destroy
    acquire lock/mutex
    shutdown_cache
        schedule_work(kmem_cache_release) (if RCU flag set)
    release lock/mutex
    kmem_cache_release (if RCU flag not set)

In some certain timing, the scheduled work could be run before
the next RCU flag checking, which can then get a wrong value
and lead to double kmem_cache_release().

Fix it by caching the RCU flag inside protected area, just like 'refcnt'

Fixes: 0495e337b703 ("mm/slab_common: Deleting kobject in kmem_cache_destroy() without holding slab_mutex/cpu_hotplug_lock")
Signed-off-by: Feng Tang <feng.tang@intel.com>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
22 months agoALSA: core: Fix double-free at snd_card_new()
Takashi Iwai [Mon, 19 Sep 2022 12:35:16 +0000 (14:35 +0200)]
ALSA: core: Fix double-free at snd_card_new()

During the code change to add the support for devres-managed card
instance, we put an explicit kfree(card) call at the error path in
snd_card_new().  This is needed for the early error path before the
card is initialized with the device, but is rather superfluous and
causes a double-free at the error path after the card instance is
initialized, as the destructor of the card object already contains a
kfree() call.

This patch fixes the double-free situation by removing the superfluous
kfree().  Meanwhile we need to call kfree() explicitly for the early
error path, so it's added there instead.

Fixes: e8ad415b7a55 ("ALSA: core: Add managed card creation")
Reported-by: Rondreis <linhaoguo86@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/CAB7eexL1zBnB636hwS27d-LdPYZ_R1-5fJS_h=ZbCWYU=UPWJg@mail.gmail.com
Link: https://lore.kernel.org/r/20220919123516.28222-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
22 months agoALSA: hda/realtek: Add a quirk for HP OMEN 16 (8902) mute LED
Daniel Houldsworth [Sun, 18 Sep 2022 17:13:00 +0000 (18:13 +0100)]
ALSA: hda/realtek: Add a quirk for HP OMEN 16 (8902) mute LED

Similair to the HP OMEN 15, the HP OMEN 16 also needs
ALC285_FIXUP_HP_MUTE_LED for the mute LED to work.

[ Rearranged the entry in PCI SSID order by tiwai ]

Signed-off-by: Daniel Houldsworth <dhould3@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220918171300.24693-1-dhould3@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
22 months agodrm/panel: simple: Fix innolux_g121i1_l01 bus_format
Heiko Schocher [Fri, 26 Aug 2022 16:50:21 +0000 (13:50 -0300)]
drm/panel: simple: Fix innolux_g121i1_l01 bus_format

innolux_g121i1_l01 sets bpc to 6, so use the corresponding bus format:
MEDIA_BUS_FMT_RGB666_1X7X3_SPWG.

Fixes: 4ae13e486866 ("drm/panel: simple: Add more properties to Innolux G121I1-L01")
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220826165021.1592532-1-festevam@denx.de
22 months agoLinux 6.0-rc6
Linus Torvalds [Sun, 18 Sep 2022 20:44:14 +0000 (13:44 -0700)]
Linux 6.0-rc6

22 months agoMerge tag 'parisc-for-6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Sun, 18 Sep 2022 20:26:59 +0000 (13:26 -0700)]
Merge tag 'parisc-for-6.0-3' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc architecture fixes from Helge Deller:
 "Some small parisc architecture fixes for 6.0-rc6:

  One patch lightens up a previous commit and thus unbreaks building the
  debian kernel, which tries to configure a 64-bit kernel with the
  ARCH=parisc environment variable set.

  The other patches fixes asm/errno.h includes in the tools directory
  and cleans up memory allocation in the iosapic driver.

  Summary:

   - Allow configuring 64-bit kernel with ARCH=parisc

   - Fix asm/errno.h includes in tools directory for parisc and xtensa

   - Clean up iosapic memory allocation

   - Minor typo and spelling fixes"

* tag 'parisc-for-6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Allow CONFIG_64BIT with ARCH=parisc
  parisc: remove obsolete manual allocation aligning in iosapic
  tools/include/uapi: Fix <asm/errno.h> for parisc and xtensa
  Input: hp_sdc: fix spelling typo in comment
  parisc: ccio-dma: Add missing iounmap in error path in ccio_probe()

22 months agoMerge tag 'io_uring-6.0-2022-09-18' of git://git.kernel.dk/linux
Linus Torvalds [Sun, 18 Sep 2022 16:25:27 +0000 (09:25 -0700)]
Merge tag 'io_uring-6.0-2022-09-18' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:
 "Nothing really major here, but figured it'd be nicer to just get these
  flushed out for -rc6 so that the 6.1 branch will have them as well.
  That'll make our lives easier going forward in terms of development,
  and avoid trivial conflicts in this area.

   - Simple trace rename so that the returned opcode name is consistent
     with the enum definition (Stefan)

   - Send zc rsrc request vs notification lifetime fix (Pavel)"

* tag 'io_uring-6.0-2022-09-18' of git://git.kernel.dk/linux:
  io_uring/opdef: rename SENDZC_NOTIF to SEND_ZC
  io_uring/net: fix zc fixed buf lifetime

22 months agoio_uring/opdef: rename SENDZC_NOTIF to SEND_ZC
Stefan Metzmacher [Fri, 16 Sep 2022 21:36:25 +0000 (23:36 +0200)]
io_uring/opdef: rename SENDZC_NOTIF to SEND_ZC

It's confusing to see the string SENDZC_NOTIF in ftrace output
when using IORING_OP_SEND_ZC.

Fixes: b48c312be05e8 ("io_uring/net: simplify zerocopy send user API")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: io-uring@vger.kernel.org
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/8e5cd8616919c92b6c3c7b6ea419fdffd5b97f3c.1663363798.git.metze@samba.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
22 months agoio_uring/net: fix zc fixed buf lifetime
Pavel Begunkov [Fri, 16 Sep 2022 22:22:57 +0000 (23:22 +0100)]
io_uring/net: fix zc fixed buf lifetime

Notifications usually outlive requests, so we need to pin buffers with
it by assigning a rsrc to it instead of the request.

Fixed: b48c312be05e8 ("io_uring/net: simplify zerocopy send user API")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/dd6406ff8a90887f2b36ed6205dac9fda17c1f35.1663366886.git.asml.silence@gmail.com
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
22 months agoRISC-V: Avoid coupling the T-Head CMOs and Zicbom
Palmer Dabbelt [Thu, 15 Sep 2022 17:09:00 +0000 (10:09 -0700)]
RISC-V: Avoid coupling the T-Head CMOs and Zicbom

We could make the T-Head CMOs depend on a new-enough assembler to have
Zicbom, but it's not strictly necessary because the T-Head CMOs
circumvent the assembler.

Fixes: 8f7e001e0325 ("RISC-V: Clean up the Zicbom block size probing")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220915170900.22685-1-palmer@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
22 months agoriscv: fix a nasty sigreturn bug...
Al Viro [Fri, 24 Sep 2021 01:55:27 +0000 (01:55 +0000)]
riscv: fix a nasty sigreturn bug...

riscv has an equivalent of arm bug fixed by 653d48b22166 ("arm: fix
really nasty sigreturn bug"); if signal gets caught by an interrupt that
hits when we have the right value in a0 (-513), *and* another signal
gets delivered upon sigreturn() (e.g. included into the blocked mask for
the first signal and posted while the handler had been running), the
syscall restart logics will see regs->cause equal to EXC_SYSCALL (we are
in a syscall, after all) and a0 already restored to its original value
(-513, which happens to be -ERESTARTNOINTR) and assume that we need to
apply the usual syscall restart logics.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Fixes: e2c0cdfba7f6 ("RISC-V: User-facing API")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/YxJEiSq%2FCGaL6Gm9@ZenIV/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
22 months agoriscv: make t-head erratas depend on MMU
Heiko Stuebner [Wed, 7 Sep 2022 15:49:32 +0000 (17:49 +0200)]
riscv: make t-head erratas depend on MMU

Both basic extensions of SVPBMT and ZICBOM depend on CONFIG_MMU.
Make the T-Head errata implementations of the similar functionality
also depend on it to prevent build errors.

Fixes: a35707c3d850 ("riscv: add memory-type errata for T-Head")
Fixes: d20ec7529236 ("riscv: implement cache-management errata for T-Head SoCs")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guo Ren <guoren@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220907154932.2858518-1-heiko@sntech.de
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
22 months agoriscv: fix RISCV_ISA_SVPBMT kconfig dependency warning
Randy Dunlap [Sat, 9 Jul 2022 01:49:29 +0000 (18:49 -0700)]
riscv: fix RISCV_ISA_SVPBMT kconfig dependency warning

RISCV_ISA_SVPBMT selects RISCV_ALTERNATIVE which depends on !XIP_KERNEL.
Therefore RISCV_ISA_SVPBMT should also depend on !XIP_KERNEL so
quieten this kconfig warning:

WARNING: unmet direct dependencies detected for RISCV_ALTERNATIVE
  Depends on [n]: !XIP_KERNEL [=y]
  Selected by [y]:
  - RISCV_ISA_SVPBMT [=y] && 64BIT [=y] && MMU [=y]

Fixes: ff689fd21cb1 ("riscv: add RISC-V Svpbmt extension support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: stable@vger.kernel.org
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220709014929.14221-1-rdunlap@infradead.org/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
22 months agokasan: call kasan_malloc() from __kmalloc_*track_caller()
Peter Collingbourne [Wed, 14 Sep 2022 02:00:01 +0000 (19:00 -0700)]
kasan: call kasan_malloc() from __kmalloc_*track_caller()

We were failing to call kasan_malloc() from __kmalloc_*track_caller()
which was causing us to sometimes fail to produce KASAN error reports
for allocations made using e.g. devm_kcalloc(), as the KASAN poison was
not being initialized. Fix it.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Cc: <stable@vger.kernel.org> # 5.15
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
22 months agoMerge tag 'gpio-fixes-for-v6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 16 Sep 2022 19:58:17 +0000 (12:58 -0700)]
Merge tag 'gpio-fixes-for-v6.0-rc6' of git://git./linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix the level-low interrupt type support in gpio-mpc8xxx

 - convert another two drivers to using immutable irq chips

 - MAINTAINERS update

* tag 'gpio-fixes-for-v6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: mt7621: Make the irqchip immutable
  gpio: ixp4xx: Make irqchip immutable
  MAINTAINERS: Update HiSilicon GPIO Driver maintainer
  gpio: mpc8xxx: Fix support for IRQ_TYPE_LEVEL_LOW flow_type in mpc85xx

22 months agotcp: Use WARN_ON_ONCE() in tcp_read_skb()
Peilin Ye [Thu, 8 Sep 2022 23:15:23 +0000 (16:15 -0700)]
tcp: Use WARN_ON_ONCE() in tcp_read_skb()

Prevent tcp_read_skb() from flooding the syslog.

Suggested-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agoALSA: hda/hdmi: Fix the converter reuse for the silent stream
Jaroslav Kysela [Tue, 13 Sep 2022 07:02:16 +0000 (09:02 +0200)]
ALSA: hda/hdmi: Fix the converter reuse for the silent stream

When the user space pcm stream uses the silent stream converter,
it is no longer allocated for the silent stream. Clear the appropriate
flag in the hdmi_pcm_open() function. The silent stream setup may
be applied in hdmi_pcm_close() (and the error path - open fcn) again.

If the flag is not cleared, the reuse conditions for the silent
stream converter in hdmi_choose_cvt() may improperly share
this converter.

Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20220913070216.3233974-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
22 months agoMerge tag 'pinctrl-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Fri, 16 Sep 2022 14:06:05 +0000 (07:06 -0700)]
Merge tag 'pinctrl-v6.0-2' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Nothing special, just driver fixes:

   - Fix IRQ wakeup and pins for UFS and SDC2 issues on the Qualcomm
     SC8180x

   - Fix the Rockchip driver to support interrupt on both rising and
     falling edges.

   - Name the Allwinner A100 R_PIO properly

   - Fix several issues with the Ocelot interrupts"

* tag 'pinctrl-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: ocelot: Fix interrupt controller
  pinctrl: sunxi: Fix name for A100 R_PIO
  pinctrl: rockchip: Enhance support for IRQ_TYPE_EDGE_BOTH
  pinctrl: qcom: sc8180x: Fix wrong pin numbers
  pinctrl: qcom: sc8180x: Fix gpio_wakeirq_map

22 months agoMerge tag 'block-6.0-2022-09-16' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 16 Sep 2022 13:58:04 +0000 (06:58 -0700)]
Merge tag 'block-6.0-2022-09-16' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Two fixes for -rc6:

   - Fix a mixup of sectors and bytes in the secure erase ioctl
     (Mikulas)

   - Fix for a bad return value for a non-blocking bio/blk queue enter
     call (me)"

* tag 'block-6.0-2022-09-16' of git://git.kernel.dk/linux-block:
  blk-lib: fix blkdev_issue_secure_erase
  block: blk_queue_enter() / __bio_queue_enter() must return -EAGAIN for nowait

22 months agoMerge tag 'io_uring-6.0-2022-09-16' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 16 Sep 2022 13:50:25 +0000 (06:50 -0700)]
Merge tag 'io_uring-6.0-2022-09-16' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Two small patches:

   - Fix using an unsigned type for the return value, introduced in this
     release (Pavel)

   - Stable fix for a missing check for a fixed file on put (me)"

* tag 'io_uring-6.0-2022-09-16' of git://git.kernel.dk/linux-block:
  io_uring/msg_ring: check file type before putting
  io_uring/rw: fix error'ed retry return values

22 months agoMerge tag 'drm-fixes-2022-09-16' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 16 Sep 2022 13:45:19 +0000 (06:45 -0700)]
Merge tag 'drm-fixes-2022-09-16' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "This is the regular drm fixes pull.

  The i915 and misc fixes are fairly regular, but the amdgpu contains
  fixes for new hw blocks, the dcn314 specific path hookups and also has
  a bunch of fixes for clang stack size warnings which are a bit churny
  but fairly straightforward. This means it looks a little larger than
  usual.

  amdgpu:
   - BACO fixes for some RDNA2 boards
   - PCI AER fixes uncovered by a core PCI change
   - Properly hook up dirtyfb helper
   - RAS fixes for GC 11.x
   - TMR fix
   - DCN 3.2.x fixes
   - DCN 3.1.4 fixes
   - LLVM DML stack size fixes

  i915:
   - Revert a display patch around max DP source rate now that the
     proper WaEdpLinkRateDataReload is in place
   - Fix perf limit reasons bit position
   - Fix unclaimmed mmio registers on suspend flow with GuC
   - A vma_move_to_active fix for a regression with video decoding
   - DP DSP fix

  gma500:
   - Locking and IRQ fixes

  meson:
   - OSD1 display fixes

  panel-edp:
   - Fix Innolux timings

  rockchip:
   - DP/HDMI fixes"

* tag 'drm-fixes-2022-09-16' of git://anongit.freedesktop.org/drm/drm: (42 commits)
  drm/amdgpu: make sure to init common IP before gmc
  drm/amdgpu: move nbio sdma_doorbell_range() into sdma code for vega
  drm/amdgpu: move nbio ih_doorbell_range() into ih code for vega
  drm/rockchip: Fix return type of cdn_dp_connector_mode_valid
  drm/amd/display: Mark dml30's UseMinimumDCFCLK() as noinline for stack usage
  drm/amd/display: Reduce number of arguments of dml31's CalculateFlipSchedule()
  drm/amd/display: Reduce number of arguments of dml31's CalculateWatermarksAndDRAMSpeedChangeSupport()
  drm/amd/display: Reduce number of arguments of dml32_CalculatePrefetchSchedule()
  drm/amd/display: Reduce number of arguments of dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport()
  drm/amd/display: Refactor SubVP calculation to remove FPU
  drm/amd/display: Limit user regamma to a valid value
  drm/amd/display: add workaround for subvp cursor corruption for DCN32/321
  drm/amd/display: SW cursor fallback for SubVP
  drm/amd/display: Round cursor width up for MALL allocation
  drm/amd/display: Correct dram channel width for dcn314
  drm/amd/display: Relax swizzle checks for video non-RGB formats on DCN314
  drm/amd/display: Hook up DCN314 specific dml implementation
  drm/amd/display: Enable dlg and vba compilation for dcn314
  drm/amd/display: Fix compilation errors on DCN314
  drm/amd/display: Fix divide by zero in DML
  ...

22 months agoMerge tag '6.0-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 16 Sep 2022 13:41:44 +0000 (06:41 -0700)]
Merge tag '6.0-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Four smb3 fixes for stable:

   - important fix to revalidate mapping when doing direct writes

   - missing spinlock

   - two fixes to socket handling

   - trivial change to update internal version number for cifs.ko"

* tag '6.0-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update internal module number
  cifs: add missing spinlock around tcon refcount
  cifs: always initialize struct msghdr smb_msg completely
  cifs: don't send down the destination address to sendmsg for a SOCK_STREAM
  cifs: revalidate mapping when doing direct writes

22 months agoMerge branch 'net-unsync-addresses-from-ports'
David S. Miller [Fri, 16 Sep 2022 13:34:01 +0000 (14:34 +0100)]
Merge branch 'net-unsync-addresses-from-ports'

From: Benjamin Poirier <bpoirier@nvidia.com>
To: netdev@vger.kernel.org
Cc: Jay Vosburgh <j.vosburgh@gmail.com>,
Veaceslav Falico <vfalico@gmail.com>,
Andy Gospodarek <andy@greyhouse.net>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Jiri Pirko <jiri@resnulli.us>, Shuah Khan <shuah@kernel.org>,
Jonathan Toppins <jtoppins@redhat.com>,
linux-kselftest@vger.kernel.org
Subject: [PATCH net v3 0/4] Unsync addresses from ports when stopping aggregated devices
Date: Wed,  7 Sep 2022 16:56:38 +0900 [thread overview]
Message-ID: <20220907075642.475236-1-bpoirier@nvidia.com> (raw)

This series fixes similar problems in the bonding and team drivers.

Because of missing dev_{uc,mc}_unsync() calls, addresses added to
underlying devices may be leftover after the aggregated device is deleted.
Add the missing calls and a few related tests.

v2:
* fix selftest installation, see patch 3

v3:
* Split lacpdu_multicast changes to their own patch, #1
* In ndo_{add,del}_slave methods, only perform address list changes when
  the aggregated device is up (patches 2 & 3)
* Add selftest function related to the above change (patch 4)
====================

Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: Add tests for bonding and team address list management
Benjamin Poirier [Wed, 7 Sep 2022 07:56:42 +0000 (16:56 +0900)]
net: Add tests for bonding and team address list management

Test that the bonding and team drivers clean up an underlying device's
address lists (dev->uc, dev->mc) when the aggregated device is deleted.

Test addition and removal of the LACPDU multicast address on underlying
devices by the bonding driver.

v2:
* add lag_lib.sh to TEST_FILES

v3:
* extend bond_listen_lacpdu_multicast test to init_state up and down cases
* remove some superfluous shell syntax and 'set dev ... up' commands

Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: team: Unsync device addresses on ndo_stop
Benjamin Poirier [Wed, 7 Sep 2022 07:56:41 +0000 (16:56 +0900)]
net: team: Unsync device addresses on ndo_stop

Netdev drivers are expected to call dev_{uc,mc}_sync() in their
ndo_set_rx_mode method and dev_{uc,mc}_unsync() in their ndo_stop method.
This is mentioned in the kerneldoc for those dev_* functions.

The team driver calls dev_{uc,mc}_unsync() during ndo_uninit instead of
ndo_stop. This is ineffective because address lists (dev->{uc,mc}) have
already been emptied in unregister_netdevice_many() before ndo_uninit is
called. This mistake can result in addresses being leftover on former team
ports after a team device has been deleted; see test_LAG_cleanup() in the
last patch in this series.

Add unsync calls at their expected location, team_close().

v3:
* When adding or deleting a port, only sync/unsync addresses if the team
  device is up. In other cases, it is taken care of at the right time by
  ndo_open/ndo_set_rx_mode/ndo_stop.

Fixes: 3d249d4ca7d0 ("net: introduce ethernet teaming device")
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: bonding: Unsync device addresses on ndo_stop
Benjamin Poirier [Wed, 7 Sep 2022 07:56:40 +0000 (16:56 +0900)]
net: bonding: Unsync device addresses on ndo_stop

Netdev drivers are expected to call dev_{uc,mc}_sync() in their
ndo_set_rx_mode method and dev_{uc,mc}_unsync() in their ndo_stop method.
This is mentioned in the kerneldoc for those dev_* functions.

The bonding driver calls dev_{uc,mc}_unsync() during ndo_uninit instead of
ndo_stop. This is ineffective because address lists (dev->{uc,mc}) have
already been emptied in unregister_netdevice_many() before ndo_uninit is
called. This mistake can result in addresses being leftover on former bond
slaves after a bond has been deleted; see test_LAG_cleanup() in the last
patch in this series.

Add unsync calls, via bond_hw_addr_flush(), at their expected location,
bond_close().
Add dev_mc_add() call to bond_open() to match the above change.

v3:
* When adding or deleting a slave, only sync/unsync, add/del addresses if
  the bond is up. In other cases, it is taken care of at the right time by
  ndo_open/ndo_set_rx_mode/ndo_stop.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: bonding: Share lacpdu_mcast_addr definition
Benjamin Poirier [Wed, 7 Sep 2022 07:56:39 +0000 (16:56 +0900)]
net: bonding: Share lacpdu_mcast_addr definition

There are already a few definitions of arrays containing
MULTICAST_LACPDU_ADDR and the next patch will add one more use. These all
contain the same constant data so define one common instance for all
bonding code.

Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net...
David S. Miller [Fri, 16 Sep 2022 11:16:44 +0000 (12:16 +0100)]
Merge branch '100GbE' of git://git./linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-09-08 (ice, iavf)

This series contains updates to ice and iavf drivers.

Dave removes extra unplug of auxiliary bus on reset which caused a
scheduling while atomic to be reported for ice.

Ding Hui defers setting of queues for TCs to ensure valid configuration
and restores old config if invalid for ice.

Sylwester fixes a check of setting MAC address to occur after result is
received from PF for iavf driver.

Brett changes check of ring tail to use software cached value as not all
devices have access to register tail for iavf driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet: marvell: prestera: add support for for Aldrin2
Oleksandr Mazur [Thu, 8 Sep 2022 13:14:46 +0000 (16:14 +0300)]
net: marvell: prestera: add support for for Aldrin2

Aldrin2 (98DX8525) is a Marvell Prestera PP, with 100G support.

Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
V2:
  - retarget to net tree instead of net-next;
  - fix missed colon in patch subject ('net marvell' vs 'net: mavell');
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agonet/ieee802154: fix uninit value bug in dgram_sendmsg
Haimin Zhang [Thu, 8 Sep 2022 12:19:27 +0000 (20:19 +0800)]
net/ieee802154: fix uninit value bug in dgram_sendmsg

There is uninit value bug in dgram_sendmsg function in
net/ieee802154/socket.c when the length of valid data pointed by the
msg->msg_name isn't verified.

We introducing a helper function ieee802154_sockaddr_check_size to
check namelen. First we check there is addr_type in ieee802154_addr_sa.
Then, we check namelen according to addr_type.

Also fixed in raw_bind, dgram_bind, dgram_connect.

Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
22 months agoxen/xenbus: fix xenbus_setup_ring()
Juergen Gross [Thu, 15 Sep 2022 13:05:45 +0000 (15:05 +0200)]
xen/xenbus: fix xenbus_setup_ring()

Commit 4573240f0764 ("xen/xenbus: eliminate xenbus_grant_ring()")
introduced an error for initialization of multi-page rings.

Cc: stable@vger.kernel.org
Fixes: 4573240f0764 ("xen/xenbus: eliminate xenbus_grant_ring()")
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Signed-off-by: Juergen Gross <jgross@suse.com>