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Author SHA1 Message Date
Huazhong Tan ac4a5b52f5 net: hns: modify variable type in hns_nic_reuse_page
'truesize' is supposed to be u32, not int, so fix it.

Signed-off-by: Huazhong tan <tanhuazhong@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:47:36 -07:00
Huazhong Tan 3ed614dce3 net: hns: fix length and page_offset overflow when CONFIG_ARM64_64K_PAGES
When enable the config item "CONFIG_ARM64_64K_PAGES", the size of PAGE_SIZE
is 65536(64K). But the  type of length and page_offset are u16, they will
overflow. So change them to u32.

Fixes: 6fe6611ff2 ("net: add Hisilicon Network Subsystem hnae framework support")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:47:35 -07:00
David S. Miller 12a7f8696b Merge branch 'tcp_bbr-PROBE_RTT-minor-bug-fixes'
Kevin Yang says:

====================
tcp_bbr: PROBE_RTT minor bug fixes

This series includes two minor bug fixes for the TCP BBR PROBE_RTT
mechanism, and one preparatory patch:

(1) A preparatory patch to reorganize the PROBE_RTT logic by refactoring
    (into its own function) the code to exit PROBE_RTT, since the next
    patch will be using that code in a new context.

(2) Fix: When BBR restarts from idle and if BBR is in PROBE_RTT mode,
    BBR should check if it's time to exit PROBE_RTT. If yes, then BBR
    should exit PROBE_RTT mode and restore the cwnd to its full value.

(3) Fix: Apply the PROBE_RTT cwnd cap even if the count of fully-ACKed
    packets is 0.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:45:32 -07:00
Kevin Yang 8e995bf14f tcp_bbr: apply PROBE_RTT cwnd cap even if acked==0
This commit fixes a corner case where TCP BBR would enter PROBE_RTT
mode but not reduce its cwnd. If a TCP receiver ACKed less than one
full segment, the number of delivered/acked packets was 0, so that
bbr_set_cwnd() would short-circuit and exit early, without cutting
cwnd to the value we want for PROBE_RTT.

The fix is to instead make sure that even when 0 full packets are
ACKed, we do apply all the appropriate caps, including the cap that
applies in PROBE_RTT mode.

Fixes: 0f8782ea14 ("tcp_bbr: add BBR congestion control")
Signed-off-by: Kevin Yang <yyd@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:45:32 -07:00
Kevin Yang 5490b32dce tcp_bbr: in restart from idle, see if we should exit PROBE_RTT
This patch fix the case where BBR does not exit PROBE_RTT mode when
it restarts from idle. When BBR restarts from idle and if BBR is in
PROBE_RTT mode, BBR should check if it's time to exit PROBE_RTT. If
yes, then BBR should exit PROBE_RTT mode and restore the cwnd to its
full value.

Fixes: 0f8782ea14 ("tcp_bbr: add BBR congestion control")
Signed-off-by: Kevin Yang <yyd@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:45:32 -07:00
Kevin Yang fb99886224 tcp_bbr: add bbr_check_probe_rtt_done() helper
This patch add a helper function bbr_check_probe_rtt_done() to
  1. check the condition to see if bbr should exit probe_rtt mode;
  2. process the logic of exiting probe_rtt mode.

Fixes: 0f8782ea14 ("tcp_bbr: add BBR congestion control")
Signed-off-by: Kevin Yang <yyd@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:45:32 -07:00
Eric Dumazet 431280eebe ipv4: tcp: send zero IPID for RST and ACK sent in SYN-RECV and TIME-WAIT state
tcp uses per-cpu (and per namespace) sockets (net->ipv4.tcp_sk) internally
to send some control packets.

1) RST packets, through tcp_v4_send_reset()
2) ACK packets in SYN-RECV and TIME-WAIT state, through tcp_v4_send_ack()

These packets assert IP_DF, and also use the hashed IP ident generator
to provide an IPv4 ID number.

Geoff Alexander reported this could be used to build off-path attacks.

These packets should not be fragmented, since their size is smaller than
IPV4_MIN_MTU. Only some tunneled paths could eventually have to fragment,
regardless of inner IPID.

We really can use zero IPID, to address the flaw, and as a bonus,
avoid a couple of atomic operations in ip_idents_reserve()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Geoff Alexander <alexandg@cs.unm.edu>
Tested-by: Geoff Alexander <alexandg@cs.unm.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:42:58 -07:00
Cong Wang e500c6d349 addrconf: reduce unnecessary atomic allocations
All the 3 callers of addrconf_add_mroute() assert RTNL
lock, they don't take any additional lock either, so
it is safe to convert it to GFP_KERNEL.

Same for sit_add_v4_addrs().

Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:42:07 -07:00
Arnd Bergmann 191672ca07 net_sched: fix unused variable warning in stmmac
The new tcf_exts_for_each_action() macro doesn't reference its
arguments when CONFIG_NET_CLS_ACT is disabled, which leads to
a harmless warning in at least one driver:

drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c: In function 'tc_fill_actions':
drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c:64:6: error: unused variable 'i' [-Werror=unused-variable]

Adding a cast to void lets us avoid this kind of warning.
To be on the safe side, do it for all three arguments, not
just the one that caused the warning.

Fixes: 244cd96adb ("net_sched: remove list_head from tc_action")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:40:21 -07:00
Toke Høiland-Jørgensen 93cfb6c176 sch_cake: Fix TC filter flow override and expand it to hosts as well
The TC filter flow mapping override completely skipped the call to
cake_hash(); however that meant that the internal state was not being
updated, which ultimately leads to deadlocks in some configurations. Fix
that by passing the overridden flow ID into cake_hash() instead so it can
react appropriately.

In addition, the major number of the class ID can now be set to override
the host mapping in host isolation mode. If both host and flow are
overridden (or if the respective modes are disabled), flow dissection and
hashing will be skipped entirely; otherwise, the hashing will be kept for
the portions that are not set by the filter.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:39:45 -07:00
Samuel Mendoza-Jonas 3d0371b313 net/ncsi: Fixup .dumpit message flags and ID check in Netlink handler
The ncsi_pkg_info_all_nl() .dumpit handler is missing the NLM_F_MULTI
flag, causing additional package information after the first to be lost.
Also fixup a sanity check in ncsi_write_package_info() to reject out of
range package IDs.

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:39:08 -07:00
Wolfram Sang 00e1cae781 net: ethernet: renesas: use SPDX identifier for Renesas drivers
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-22 21:37:27 -07:00
David S. Miller 78c452fe70 Merge branch 'net_sched-fixes'
Cong Wang says:

====================
net_sched: pending clean up and bug fixes

This patchset aims to clean up and fixes some bugs in current
merge window, this is why it is targeting -net.

Patch 1-5 are clean up Vlad's patches merged in current merge
window, patch 6 is just a trivial cleanup.

Patch 7 reverts a lockdep warning fix and patch 8 provides a better
fix for it.

Patch 9 fixes a potential deadlock found by me during code review.

Please see each patch for details.
====================

Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
2018-08-21 12:45:45 -07:00
Cong Wang 5ffe57da29 act_ife: fix a potential deadlock
use_all_metadata() acquires read_lock(&ife_mod_lock), then calls
add_metainfo() which calls find_ife_oplist() which acquires the same
lock again. Deadlock!

Introduce __add_metainfo() which accepts struct tcf_meta_ops *ops
as an additional parameter and let its callers to decide how
to find it. For use_all_metadata(), it already has ops, no
need to find it again, just call __add_metainfo() directly.

And, as ife_mod_lock is only needed for find_ife_oplist(),
this means we can make non-atomic allocation for populate_metalist()
now.

Fixes: 817e9f2c5c ("act_ife: acquire ife_mod_lock before reading ifeoplist")
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:45 -07:00
Cong Wang 4e407ff5cd act_ife: move tcfa_lock down to where necessary
The only time we need to take tcfa_lock is when adding
a new metainfo to an existing ife->metalist. We don't need
to take tcfa_lock so early and so broadly in tcf_ife_init().

This means we can always take ife_mod_lock first, avoid the
reverse locking ordering warning as reported by Vlad.

Reported-by: Vlad Buslov <vladbu@mellanox.com>
Tested-by: Vlad Buslov <vladbu@mellanox.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:45 -07:00
Cong Wang 8ce5be1c89 Revert "net: sched: act_ife: disable bh when taking ife_mod_lock"
This reverts commit 42c625a486 ("net: sched: act_ife: disable bh
when taking ife_mod_lock"), because what ife_mod_lock protects
is absolutely not touched in rate est timer BH context, they have
no race.

A better fix is following up.

Cc: Vlad Buslov <vladbu@mellanox.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:45 -07:00
Cong Wang a0c2e90fe1 net_sched: remove unused tcfa_capab
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:45 -07:00
Cong Wang 244cd96adb net_sched: remove list_head from tc_action
After commit 90b73b77d0, list_head is no longer needed.
Now we just need to convert the list iteration to array
iteration for drivers.

Fixes: 90b73b77d0 ("net: sched: change action API to use array of pointers to actions")
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:44 -07:00
Cong Wang 7d485c451f net_sched: remove unused tcf_idr_check()
tcf_idr_check() is replaced by tcf_idr_check_alloc(),
and __tcf_idr_check() now can be folded into tcf_idr_search().

Fixes: 0190c1d452 ("net: sched: atomically check-allocate action")
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:44 -07:00
Cong Wang b144e7ec51 net_sched: remove unused parameter for tcf_action_delete()
Fixes: 16af606739 ("net: sched: implement reference counted action release")
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:44 -07:00
Cong Wang 97a3f84f2c net_sched: remove unnecessary ops->delete()
All ops->delete() wants is getting the tn->idrinfo, but we already
have tc_action before calling ops->delete(), and tc_action has
a pointer ->idrinfo.

More importantly, each type of action does the same thing, that is,
just calling tcf_idr_delete_index().

So it can be just removed.

Fixes: b409074e66 ("net: sched: add 'delete' function to action ops")
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:44 -07:00
Cong Wang edfaf94fa7 net_sched: improve and refactor tcf_action_put_many()
tcf_action_put_many() is mostly called to clean up actions on
failure path, but tcf_action_put_many(&actions[acts_deleted]) is
used in the ugliest way: it passes a slice of the array and
uses an additional NULL at the end to avoid out-of-bound
access.

acts_deleted is completely unnecessary since we can teach
tcf_action_put_many() scan the whole array and checks against
NULL pointer. Which also means tcf_action_delete() should
set deleted action pointers to NULL to avoid double free.

Fixes: 90b73b77d0 ("net: sched: change action API to use array of pointers to actions")
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:45:44 -07:00
Stephen Hemminger b93c1b5ac8 hv_netvsc: ignore devices that are not PCI
Registering another device with same MAC address (such as TAP, VPN or
DPDK KNI) will confuse the VF autobinding logic.  Restrict the search
to only run if the device is known to be a PCI attached VF.

Fixes: e8ff40d4bf ("hv_netvsc: improve VF device matching")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 12:02:11 -07:00
Yue Haibing c27f1e2e9f rds: tcp: remove duplicated include from tcp.c
Remove duplicated include.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 09:50:53 -07:00
Yue Haibing 093dee661d sch_cake: Remove unused including <linux/version.h>
Remove including <linux/version.h> that don't need it.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-21 09:50:53 -07:00
Yue Haibing ab08dcd724 rhashtable: remove duplicated include from rhashtable.c
Remove duplicated include.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 19:18:50 -07:00
David Ahern 80f1a0f4e0 net/ipv6: Put lwtstate when destroying fib6_info
Prior to the introduction of fib6_info lwtstate was managed by the dst
code. With fib6_info releasing lwtstate needs to be done when the struct
is freed.

Fixes: 93531c6743 ("net/ipv6: separate handling of FIB entries from dst based routes")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 18:18:40 -07:00
Kai-Heng Feng 176eb614b1 r8152: disable RX aggregation on new Dell TB16 dock
There's a new Dell TB16 dock with a different iSerialNumber.

Apply the same fix from commit 0b1655143d ("r8152: disable RX
aggregation on Dell TB16 dock") to this model.

BugLink: https://bugs.launchpad.net/bugs/1785780
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 13:03:29 -07:00
David S. Miller b0c41e96cf Merge branch 'qed-Misc-fixes-in-the-interface-with-the-MFW'
Tomer Tayar says:

====================
qed: Misc fixes in the interface with the MFW

This patch series fixes several issues in the driver's interface with the
management FW (MFW).

v1->v2:
- Fix loop counter decrement to be pre instead of post.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 11:34:39 -07:00
Tomer Tayar b310974e04 qed: Avoid sending mailbox commands when MFW is not responsive
Keep sending mailbox commands to the MFW when it is not responsive ends up
with a redundant amount of timeout expiries.
This patch prints the MCP status on the first command which is not
responded, and blocks the following commands.
Since the (un)load request commands might be not responded due to other
PFs, the patch also adds the option to skip the blocking upon a failure.

Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 11:34:39 -07:00
Tomer Tayar eaa50fc59e qed: Prevent a possible deadlock during driver load and unload
The MFW manages an internal lock to prevent concurrent hardware
(de)initialization of different PFs.
This, together with the busy-waiting for the MFW's responses for commands,
might lead to a deadlock during concurrent load or unload of PFs.
This patch adds the option to sleep within the busy-waiting, and uses it
for the (un)load requests (which are not sent from an interrupt context) to
prevent the possible deadlock.

Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 11:34:39 -07:00
Tomer Tayar 76271809f4 qed: Wait for MCP halt and resume commands to take place
Successive iterations of halting and resuming the management chip (MCP)
might fail, since currently the driver doesn't wait for these operations to
actually take place.
This patch prevents the driver from moving forward before the operations
are reflected in the state register.

Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 11:34:39 -07:00
Tomer Tayar f00d25f315 qed: Wait for ready indication before rereading the shmem
The MFW might be reset and re-update its shared memory.
Upon the detection of such a reset the driver rereads this memory, but it
has to wait till the data is valid.
This patch adds the missing wait for a data ready indication.

Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-20 11:34:39 -07:00
Haishuang Yan 9c86336c15 ip6_vti: fix a null pointer deference when destroy vti6 tunnel
If load ip6_vti module and create a network namespace when set
fb_tunnels_only_for_init_net to 1, then exit the namespace will
cause following crash:

[ 6601.677036] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[ 6601.679057] PGD 8000000425eca067 P4D 8000000425eca067 PUD 424292067 PMD 0
[ 6601.680483] Oops: 0000 [#1] SMP PTI
[ 6601.681223] CPU: 7 PID: 93 Comm: kworker/u16:1 Kdump: loaded Tainted: G            E     4.18.0+ #3
[ 6601.683153] Hardware name: Fedora Project OpenStack Nova, BIOS seabios-1.7.5-11.el7 04/01/2014
[ 6601.684919] Workqueue: netns cleanup_net
[ 6601.685742] RIP: 0010:vti6_exit_batch_net+0x87/0xd0 [ip6_vti]
[ 6601.686932] Code: 7b 08 48 89 e6 e8 b9 ea d3 dd 48 8b 1b 48 85 db 75 ec 48 83 c5 08 48 81 fd 00 01 00 00 75 d5 49 8b 84 24 08 01 00 00 48 89 e6 <48> 8b 78 08 e8 90 ea d3 dd 49 8b 45 28 49 39 c6 4c 8d 68 d8 75 a1
[ 6601.690735] RSP: 0018:ffffa897c2737de0 EFLAGS: 00010246
[ 6601.691846] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dead000000000200
[ 6601.693324] RDX: 0000000000000015 RSI: ffffa897c2737de0 RDI: ffffffff9f2ea9e0
[ 6601.694824] RBP: 0000000000000100 R08: 0000000000000000 R09: 0000000000000000
[ 6601.696314] R10: 0000000000000001 R11: 0000000000000000 R12: ffff8dc323c07e00
[ 6601.697812] R13: ffff8dc324a63100 R14: ffffa897c2737e30 R15: ffffa897c2737e30
[ 6601.699345] FS:  0000000000000000(0000) GS:ffff8dc33fdc0000(0000) knlGS:0000000000000000
[ 6601.701068] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6601.702282] CR2: 0000000000000008 CR3: 0000000424966002 CR4: 00000000001606e0
[ 6601.703791] Call Trace:
[ 6601.704329]  cleanup_net+0x1b4/0x2c0
[ 6601.705268]  process_one_work+0x16c/0x370
[ 6601.706145]  worker_thread+0x49/0x3e0
[ 6601.706942]  kthread+0xf8/0x130
[ 6601.707626]  ? rescuer_thread+0x340/0x340
[ 6601.708476]  ? kthread_bind+0x10/0x10
[ 6601.709266]  ret_from_fork+0x35/0x40

Reproduce:
modprobe ip6_vti
echo 1 > /proc/sys/net/core/fb_tunnels_only_for_init_net
unshare -n
exit

This because ip6n->tnls_wc[0] point to fallback device in default, but
in non-default namespace, ip6n->tnls_wc[0] will be NULL, so add the NULL
check comparatively.

Fixes: e2948e5af8 ("ip6_vti: fix creating fallback tunnel device for vti6")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-19 19:55:58 -07:00
Linus Torvalds 2ad0d52699 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix races in IPVS, from Tan Hu.

 2) Missing unbind in matchall classifier, from Hangbin Liu.

 3) Missing act_ife action release, from Vlad Buslov.

 4) Cure lockdep splats in ila, from Cong Wang.

 5) veth queue leak on link delete, from Toshiaki Makita.

 6) Disable isdn's IIOCDBGVAR ioctl, it exposes kernel addresses. From
    Kees Cook.

 7) RCU usage fixup in XDP, from Tariq Toukan.

 8) Two TCP ULP fixes from Daniel Borkmann.

 9) r8169 needs REALTEK_PHY as a Kconfig dependency, from Heiner
    Kallweit.

10) Always take tcf_lock with BH disabled, otherwise we can deadlock
    with rate estimator code paths. From Vlad Buslov.

11) Don't use MSI-X on RTL8106e r8169 chips, they don't resume properly.
    From Jian-Hong Pan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
  ip6_vti: fix creating fallback tunnel device for vti6
  ip_vti: fix a null pointer deferrence when create vti fallback tunnel
  r8169: don't use MSI-X on RTL8106e
  net: lan743x_ptp: convert to ktime_get_clocktai_ts64
  net: sched: always disable bh when taking tcf_lock
  ip6_vti: simplify stats handling in vti6_xmit
  bpf: fix redirect to map under tail calls
  r8169: add missing Kconfig dependency
  tools/bpf: fix bpf selftest test_cgroup_storage failure
  bpf, sockmap: fix sock_map_ctx_update_elem race with exist/noexist
  bpf, sockmap: fix map elem deletion race with smap_stop_sock
  bpf, sockmap: fix leakage of smap_psock_map_entry
  tcp, ulp: fix leftover icsk_ulp_ops preventing sock from reattach
  tcp, ulp: add alias for all ulp modules
  bpf: fix a rcu usage warning in bpf_prog_array_copy_core()
  samples/bpf: all XDP samples should unload xdp/bpf prog on SIGTERM
  net/xdp: Fix suspicious RCU usage warning
  net/mlx5e: Delete unneeded function argument
  Documentation: networking: ti-cpsw: correct cbs parameters for Eth1 100Mb
  isdn: Disable IIOCDBGVAR
  ...
2018-08-19 11:51:45 -07:00
Haishuang Yan e2948e5af8 ip6_vti: fix creating fallback tunnel device for vti6
When set fb_tunnels_only_for_init_net to 1, don't create fallback tunnel
device for vti6 when a new namespace is created.

Tested:
[root@builder2 ~]# modprobe ip6_tunnel
[root@builder2 ~]# modprobe ip6_vti
[root@builder2 ~]# echo 1 > /proc/sys/net/core/fb_tunnels_only_for_init_net
[root@builder2 ~]# unshare -n
[root@builder2 ~]# ip link
1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN mode DEFAULT group
default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-19 11:26:39 -07:00
Haishuang Yan cd1aa9c2c6 ip_vti: fix a null pointer deferrence when create vti fallback tunnel
After set fb_tunnels_only_for_init_net to 1, the itn->fb_tunnel_dev will
be NULL and will cause following crash:

[ 2742.849298] BUG: unable to handle kernel NULL pointer dereference at 0000000000000941
[ 2742.851380] PGD 800000042c21a067 P4D 800000042c21a067 PUD 42aaed067 PMD 0
[ 2742.852818] Oops: 0002 [#1] SMP PTI
[ 2742.853570] CPU: 7 PID: 2484 Comm: unshare Kdump: loaded Not tainted 4.18.0-rc8+ #2
[ 2742.855163] Hardware name: Fedora Project OpenStack Nova, BIOS seabios-1.7.5-11.el7 04/01/2014
[ 2742.856970] RIP: 0010:vti_init_net+0x3a/0x50 [ip_vti]
[ 2742.858034] Code: 90 83 c0 48 c7 c2 20 a1 83 c0 48 89 fb e8 6e 3b f6 ff 85 c0 75 22 8b 0d f4 19 00 00 48 8b 93 00 14 00 00 48 8b 14 ca 48 8b 12 <c6> 82 41 09 00 00 04 c6 82 38 09 00 00 45 5b c3 66 0f 1f 44 00 00
[ 2742.861940] RSP: 0018:ffff9be28207fde0 EFLAGS: 00010246
[ 2742.863044] RAX: 0000000000000000 RBX: ffff8a71ebed4980 RCX: 0000000000000013
[ 2742.864540] RDX: 0000000000000000 RSI: 0000000000000013 RDI: ffff8a71ebed4980
[ 2742.866020] RBP: ffff8a71ea717000 R08: ffffffffc083903c R09: ffff8a71ea717000
[ 2742.867505] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8a71ebed4980
[ 2742.868987] R13: 0000000000000013 R14: ffff8a71ea5b49c0 R15: 0000000000000000
[ 2742.870473] FS:  00007f02266c9740(0000) GS:ffff8a71ffdc0000(0000) knlGS:0000000000000000
[ 2742.872143] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2742.873340] CR2: 0000000000000941 CR3: 000000042bc20006 CR4: 00000000001606e0
[ 2742.874821] Call Trace:
[ 2742.875358]  ops_init+0x38/0xf0
[ 2742.876078]  setup_net+0xd9/0x1f0
[ 2742.876789]  copy_net_ns+0xb7/0x130
[ 2742.877538]  create_new_namespaces+0x11a/0x1d0
[ 2742.878525]  unshare_nsproxy_namespaces+0x55/0xa0
[ 2742.879526]  ksys_unshare+0x1a7/0x330
[ 2742.880313]  __x64_sys_unshare+0xe/0x20
[ 2742.881131]  do_syscall_64+0x5b/0x180
[ 2742.881933]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reproduce:
echo 1 > /proc/sys/net/core/fb_tunnels_only_for_init_net
modprobe ip_vti
unshare -n

Fixes: 79134e6ce2 ("net: do not create fallback tunnels for non-default namespaces")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-19 11:26:39 -07:00
Jian-Hong Pan 7bb05b85bc r8169: don't use MSI-X on RTL8106e
Found the ethernet network on ASUS X441UAR doesn't come back on resume
from suspend when using MSI-X.  The chip is RTL8106e - version 39.

[   21.848357] libphy: r8169: probed
[   21.848473] r8169 0000:02:00.0 eth0: RTL8106e, 0c:9d:92:32:67:b4, XID
44900000, IRQ 127
[   22.518860] r8169 0000:02:00.0 enp2s0: renamed from eth0
[   29.458041] Generic PHY r8169-200:00: attached PHY driver [Generic
PHY] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
[   63.227398] r8169 0000:02:00.0 enp2s0: Link is Up - 100Mbps/Full -
flow control off
[  124.514648] Generic PHY r8169-200:00: attached PHY driver [Generic
PHY] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)

Here is the ethernet controller in detail:

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136]
(rev 07)
	Subsystem: ASUSTeK Computer Inc. RTL810xE PCI Express Fast
Ethernet controller [1043:200f]
	Flags: bus master, fast devsel, latency 0, IRQ 16
	I/O ports at e000 [size=256]
	Memory at ef100000 (64-bit, non-prefetchable) [size=4K]
	Memory at e0000000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169

Falling back to MSI fixes the issue.

Fixes: 6c6aa15fde ("r8169: improve interrupt handling")
Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-19 11:01:09 -07:00
Arnd Bergmann 0b3e776e2e net: lan743x_ptp: convert to ktime_get_clocktai_ts64
timekeeping_clocktai64() has been renamed to ktime_get_clocktai_ts64()
for consistency with the other ktime_get_* access functions.

Rename the new caller that has come up as well.

Question: this is the only ptp driver that sets the hardware time
to the current system time in TAI. Why does it do that?

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-19 10:56:40 -07:00
Vlad Buslov 653cd284a8 net: sched: always disable bh when taking tcf_lock
Recently, ops->init() and ops->dump() of all actions were modified to
always obtain tcf_lock when accessing private action state. Actions that
don't depend on tcf_lock for synchronization with their data path use
non-bh locking API. However, tcf_lock is also used to protect rate
estimator stats in softirq context by timer callback.

Change ops->init() and ops->dump() of all actions to disable bh when using
tcf_lock to prevent deadlock reported by following lockdep warning:

[  105.470398] ================================
[  105.475014] WARNING: inconsistent lock state
[  105.479628] 4.18.0-rc8+ #664 Not tainted
[  105.483897] --------------------------------
[  105.488511] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[  105.494871] swapper/16/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[  105.500449] 00000000f86c012e (&(&p->tcfa_lock)->rlock){+.?.}, at: est_fetch_counters+0x3c/0xa0
[  105.509696] {SOFTIRQ-ON-W} state was registered at:
[  105.514925]   _raw_spin_lock+0x2c/0x40
[  105.519022]   tcf_bpf_init+0x579/0x820 [act_bpf]
[  105.523990]   tcf_action_init_1+0x4e4/0x660
[  105.528518]   tcf_action_init+0x1ce/0x2d0
[  105.532880]   tcf_exts_validate+0x1d8/0x200
[  105.537416]   fl_change+0x55a/0x268b [cls_flower]
[  105.542469]   tc_new_tfilter+0x748/0xa20
[  105.546738]   rtnetlink_rcv_msg+0x56a/0x6d0
[  105.551268]   netlink_rcv_skb+0x18d/0x200
[  105.555628]   netlink_unicast+0x2d0/0x370
[  105.559990]   netlink_sendmsg+0x3b9/0x6a0
[  105.564349]   sock_sendmsg+0x6b/0x80
[  105.568271]   ___sys_sendmsg+0x4a1/0x520
[  105.572547]   __sys_sendmsg+0xd7/0x150
[  105.576655]   do_syscall_64+0x72/0x2c0
[  105.580757]   entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  105.586243] irq event stamp: 489296
[  105.590084] hardirqs last  enabled at (489296): [<ffffffffb507e639>] _raw_spin_unlock_irq+0x29/0x40
[  105.599765] hardirqs last disabled at (489295): [<ffffffffb507e745>] _raw_spin_lock_irq+0x15/0x50
[  105.609277] softirqs last  enabled at (489292): [<ffffffffb413a6a3>] irq_enter+0x83/0xa0
[  105.618001] softirqs last disabled at (489293): [<ffffffffb413a800>] irq_exit+0x140/0x190
[  105.626813]
               other info that might help us debug this:
[  105.633976]  Possible unsafe locking scenario:

[  105.640526]        CPU0
[  105.643325]        ----
[  105.646125]   lock(&(&p->tcfa_lock)->rlock);
[  105.650747]   <Interrupt>
[  105.653717]     lock(&(&p->tcfa_lock)->rlock);
[  105.658514]
                *** DEADLOCK ***

[  105.665349] 1 lock held by swapper/16/0:
[  105.669629]  #0: 00000000a640ad99 ((&est->timer)){+.-.}, at: call_timer_fn+0x10b/0x550
[  105.678200]
               stack backtrace:
[  105.683194] CPU: 16 PID: 0 Comm: swapper/16 Not tainted 4.18.0-rc8+ #664
[  105.690249] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[  105.698626] Call Trace:
[  105.701421]  <IRQ>
[  105.703791]  dump_stack+0x92/0xeb
[  105.707461]  print_usage_bug+0x336/0x34c
[  105.711744]  mark_lock+0x7c9/0x980
[  105.715500]  ? print_shortest_lock_dependencies+0x2e0/0x2e0
[  105.721424]  ? check_usage_forwards+0x230/0x230
[  105.726315]  __lock_acquire+0x923/0x26f0
[  105.730597]  ? debug_show_all_locks+0x240/0x240
[  105.735478]  ? mark_lock+0x493/0x980
[  105.739412]  ? check_chain_key+0x140/0x1f0
[  105.743861]  ? __lock_acquire+0x836/0x26f0
[  105.748323]  ? lock_acquire+0x12e/0x290
[  105.752516]  lock_acquire+0x12e/0x290
[  105.756539]  ? est_fetch_counters+0x3c/0xa0
[  105.761084]  _raw_spin_lock+0x2c/0x40
[  105.765099]  ? est_fetch_counters+0x3c/0xa0
[  105.769633]  est_fetch_counters+0x3c/0xa0
[  105.773995]  est_timer+0x87/0x390
[  105.777670]  ? est_fetch_counters+0xa0/0xa0
[  105.782210]  ? lock_acquire+0x12e/0x290
[  105.786410]  call_timer_fn+0x161/0x550
[  105.790512]  ? est_fetch_counters+0xa0/0xa0
[  105.795055]  ? del_timer_sync+0xd0/0xd0
[  105.799249]  ? __lock_is_held+0x93/0x110
[  105.803531]  ? mark_held_locks+0x20/0xe0
[  105.807813]  ? _raw_spin_unlock_irq+0x29/0x40
[  105.812525]  ? est_fetch_counters+0xa0/0xa0
[  105.817069]  ? est_fetch_counters+0xa0/0xa0
[  105.821610]  run_timer_softirq+0x3c4/0x9f0
[  105.826064]  ? lock_acquire+0x12e/0x290
[  105.830257]  ? __bpf_trace_timer_class+0x10/0x10
[  105.835237]  ? __lock_is_held+0x25/0x110
[  105.839517]  __do_softirq+0x11d/0x7bf
[  105.843542]  irq_exit+0x140/0x190
[  105.847208]  smp_apic_timer_interrupt+0xac/0x3b0
[  105.852182]  apic_timer_interrupt+0xf/0x20
[  105.856628]  </IRQ>
[  105.859081] RIP: 0010:cpuidle_enter_state+0xd8/0x4d0
[  105.864395] Code: 46 ff 48 89 44 24 08 0f 1f 44 00 00 31 ff e8 cf ec 46 ff 80 7c 24 07 00 0f 85 1d 02 00 00 e8 9f 90 4b ff fb 66 0f 1f 44 00 00 <4c> 8b 6c 24 08 4d 29 fd 0f 80 36 03 00 00 4c 89 e8 48 ba cf f7 53
[  105.884288] RSP: 0018:ffff8803ad94fd20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  105.892494] RAX: 0000000000000000 RBX: ffffe8fb300829c0 RCX: ffffffffb41e19e1
[  105.899988] RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffff8803ad9358ac
[  105.907503] RBP: ffffffffb6636300 R08: 0000000000000004 R09: 0000000000000000
[  105.914997] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004
[  105.922487] R13: ffffffffb6636140 R14: ffffffffb66362d8 R15: 000000188d36091b
[  105.929988]  ? trace_hardirqs_on_caller+0x141/0x2d0
[  105.935232]  do_idle+0x28e/0x320
[  105.938817]  ? arch_cpu_idle_exit+0x40/0x40
[  105.943361]  ? mark_lock+0x8c1/0x980
[  105.947295]  ? _raw_spin_unlock_irqrestore+0x32/0x60
[  105.952619]  cpu_startup_entry+0xc2/0xd0
[  105.956900]  ? cpu_in_idle+0x20/0x20
[  105.960830]  ? _raw_spin_unlock_irqrestore+0x32/0x60
[  105.966146]  ? trace_hardirqs_on_caller+0x141/0x2d0
[  105.971391]  start_secondary+0x2b5/0x360
[  105.975669]  ? set_cpu_sibling_map+0x1330/0x1330
[  105.980654]  secondary_startup_64+0xa5/0xb0

Taking tcf_lock in sample action with bh disabled causes lockdep to issue a
warning regarding possible irq lock inversion dependency between tcf_lock,
and psample_groups_lock that is taken when holding tcf_lock in sample init:

[  162.108959]  Possible interrupt unsafe locking scenario:

[  162.116386]        CPU0                    CPU1
[  162.121277]        ----                    ----
[  162.126162]   lock(psample_groups_lock);
[  162.130447]                                local_irq_disable();
[  162.136772]                                lock(&(&p->tcfa_lock)->rlock);
[  162.143957]                                lock(psample_groups_lock);
[  162.150813]   <Interrupt>
[  162.153808]     lock(&(&p->tcfa_lock)->rlock);
[  162.158608]
                *** DEADLOCK ***

In order to prevent potential lock inversion dependency between tcf_lock
and psample_groups_lock, extract call to psample_group_get() from tcf_lock
protected section in sample action init function.

Fixes: 4e232818bd ("net: sched: act_mirred: remove dependency on rtnl lock")
Fixes: 764e9a2448 ("net: sched: act_vlan: remove dependency on rtnl lock")
Fixes: 729e012609 ("net: sched: act_tunnel_key: remove dependency on rtnl lock")
Fixes: d772849566 ("net: sched: act_sample: remove dependency on rtnl lock")
Fixes: e8917f4370 ("net: sched: act_gact: remove dependency on rtnl lock")
Fixes: b6a2b971c0 ("net: sched: act_csum: remove dependency on rtnl lock")
Fixes: 2142236b45 ("net: sched: act_bpf: remove dependency on rtnl lock")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-19 10:46:21 -07:00
Linus Torvalds e61cf2e3a5 Minor code cleanups for PPC.
For x86 this brings in PCID emulation and CR3 caching for shadow page
 tables, nested VMX live migration, nested VMCS shadowing, an optimized
 IPI hypercall, and some optimizations.
 
 ARM will come next week.
 
 There is a semantic conflict because tip also added an .init_platform
 callback to kvm.c.  Please keep the initializer from this branch,
 and add a call to kvmclock_init (added by tip) inside kvm_init_platform
 (added here).
 
 Also, there is a backmerge from 4.18-rc6.  This is because of a
 refactoring that conflicted with a relatively late bugfix and
 resulted in a particularly hellish conflict.  Because the conflict
 was only due to unfortunate timing of the bugfix, I backmerged and
 rebased the refactoring rather than force the resolution on you.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull first set of KVM updates from Paolo Bonzini:
 "PPC:
   - minor code cleanups

  x86:
   - PCID emulation and CR3 caching for shadow page tables
   - nested VMX live migration
   - nested VMCS shadowing
   - optimized IPI hypercall
   - some optimizations

  ARM will come next week"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (85 commits)
  kvm: x86: Set highest physical address bits in non-present/reserved SPTEs
  KVM/x86: Use CC_SET()/CC_OUT in arch/x86/kvm/vmx.c
  KVM: X86: Implement PV IPIs in linux guest
  KVM: X86: Add kvm hypervisor init time platform setup callback
  KVM: X86: Implement "send IPI" hypercall
  KVM/x86: Move X86_CR4_OSXSAVE check into kvm_valid_sregs()
  KVM: x86: Skip pae_root shadow allocation if tdp enabled
  KVM/MMU: Combine flushing remote tlb in mmu_set_spte()
  KVM: vmx: skip VMWRITE of HOST_{FS,GS}_BASE when possible
  KVM: vmx: skip VMWRITE of HOST_{FS,GS}_SEL when possible
  KVM: vmx: always initialize HOST_{FS,GS}_BASE to zero during setup
  KVM: vmx: move struct host_state usage to struct loaded_vmcs
  KVM: vmx: compute need to reload FS/GS/LDT on demand
  KVM: nVMX: remove a misleading comment regarding vmcs02 fields
  KVM: vmx: rename __vmx_load_host_state() and vmx_save_host_state()
  KVM: vmx: add dedicated utility to access guest's kernel_gs_base
  KVM: vmx: track host_state.loaded using a loaded_vmcs pointer
  KVM: vmx: refactor segmentation code in vmx_save_host_state()
  kvm: nVMX: Fix fault priority for VMX operations
  kvm: nVMX: Fix fault vector for VMX operation at CPL > 0
  ...
2018-08-19 10:38:36 -07:00
Linus Torvalds 1009aa1205 RISC-V Updates for the 4.19 Merge Window
This tag contains some major improvements to the RISC-V port, including
 the necessary interrupt controller and timer support to actually make it
 to userspace.  Support for three devices has been added:
 
 * Support for the ISA-mandated timers on RISC-V systems.
 * Support for the ISA-mandated first-level interrupt controller on
   RISC-V systems, which is handled as part of our core arch code because
   it's very small and tightly tied to the ISA.
 * Support for SiFive's platform-level interrupt controller, which talks
   to the actual devices.
 
 In addition to these new devices, there are a handful of cleanups all
 over the RISC-V tree:
 
 * Build fixes for various configurations
     * A fix to the vDSO build's makefile so it respects CFLAGS.
     * The addition of __lshrti3, a libgcc derived function necessary for
       some 32-bit configurations.
     * !SMP && PERF_EVENTS
 * Cleanups to the arch code to remove the remnants of old versions of
   the drivers that were just properly submitted.
     * Some dead code from the timer driver, most of which wasn't ever
       even compiled.
     * Cleanups of some interrupt #defines, which are now local to the
       interrupt handling code.
 * Fixes to ptrace(), which while not being sufficient to fully make GDB
   work are at least sufficient to get simple GDB tasks to work.
 * Early printk support via RISC-V's architecturally mandated SBI console
   device.
 * A fix to our early debug trap handler to ensure it's always aligned.
 
 These patches have all been through a fairly extensive review process,
 but as this enables a whole pile of functionality (ie, userspace) I'm
 confident we'll need to submit a few more patches.  The only concrete
 issues I know about are the sys_riscv_flush_icache patches, but as I
 managed to screw those up on Friday I figured it'd be best to let them
 bake another week.
 
 This tag boots a Fedora root filesystem on QEMU's master branch for me,
 and before this morning's rebase (from 4.18-rc8 to 4.18) it booted on
 the HiFive Unleashed.
 
 Thanks to Christoph Hellwig and the other guys at WD for getting the new
 drivers in shape!
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Merge tag 'riscv-for-linus-4.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

Pull RISC-V updates from Palmer Dabbelt:
 "This contains some major improvements to the RISC-V port, including
  the necessary interrupt controller and timer support to actually make
  it to userspace. Support for three devices has been added:

   - the ISA-mandated timers on RISC-V systems.

   - the ISA-mandated first-level interrupt controller on RISC-V
     systems, which is handled as part of our core arch code because
     it's very small and tightly tied to the ISA.

   - SiFive's platform-level interrupt controller, which talks to the
     actual devices.

  In addition to these new devices, there are a handful of cleanups all
  over the RISC-V tree:

   - build fixes for various configurations:
      * A fix to the vDSO build's makefile so it respects CFLAGS.
      * The addition of __lshrti3, a libgcc derived function necessary
        for some 32-bit configurations.
      * !SMP && PERF_EVENTS

   - Cleanups to the arch code to remove the remnants of old versions of
     the drivers that were just properly submitted.
      * Some dead code from the timer driver, most of which wasn't ever
        even compiled.
      * Cleanups of some interrupt #defines, which are now local to the
        interrupt handling code.

   - Fixes to ptrace(), which while not being sufficient to fully make
     GDB work are at least sufficient to get simple GDB tasks to work.

   - Early printk support via RISC-V's architecturally mandated SBI
     console device.

   - A fix to our early debug trap handler to ensure it's always
     aligned.

  These patches have all been through a fairly extensive review process,
  but as this enables a whole pile of functionality (ie, userspace) I'm
  confident we'll need to submit a few more patches. The only concrete
  issues I know about are the sys_riscv_flush_icache patches, but as I
  managed to screw those up on Friday I figured it'd be best to let them
  bake another week.

  This tag boots a Fedora root filesystem on QEMU's master branch for
  me, and before this morning's rebase (from 4.18-rc8 to 4.18) it booted
  on the HiFive Unleashed.

  Thanks to Christoph Hellwig and the other guys at WD for getting the
  new drivers in shape!"

* tag 'riscv-for-linus-4.19-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
  dt-bindings: interrupt-controller: SiFive Plaform Level Interrupt Controller
  dt-bindings: interrupt-controller: RISC-V local interrupt controller
  RISC-V: Fix !CONFIG_SMP compilation error
  irqchip: add a SiFive PLIC driver
  RISC-V: Add the directive for alignment of stvec's value
  clocksource: new RISC-V SBI timer driver
  RISC-V: implement low-level interrupt handling
  RISC-V: add a definition for the SIE SEIE bit
  RISC-V: remove INTERRUPT_CAUSE_* defines from asm/irq.h
  RISC-V: simplify software interrupt / IPI code
  RISC-V: remove timer leftovers
  RISC-V: Add early printk support via the SBI console
  RISC-V: Don't increment sepc after breakpoint.
  RISC-V: implement __lshrti3.
  RISC-V: Use KBUILD_CFLAGS instead of KCFLAGS when building the vDSO
2018-08-19 09:56:38 -07:00
Linus Torvalds 1d0926e99d Char/Misc fix for 4.19-rc1
Here is a single UIO fix that I forgot to send before 4.18-final came
 out.  It reverts a UIO patch that went in the 4.18 development window
 that was causing problems.
 
 This patch has been in linux-next for a while with no problems, I just
 forgot to send it earlier, or as part of the larger char/misc patch
 series from yesterday, my fault.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull UIO fix from Greg KH:
 "Here is a single UIO fix that I forgot to send before 4.18-final came
  out. It reverts a UIO patch that went in the 4.18 development window
  that was causing problems.

  This patch has been in linux-next for a while with no problems, I just
  forgot to send it earlier, or as part of the larger char/misc patch
  series from yesterday, my fault"

* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Revert "uio: use request_threaded_irq instead"
2018-08-19 09:30:44 -07:00
Linus Torvalds 08b5fa8199 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a new driver for Rohm BU21029 touch controller

 - new bitmap APIs: bitmap_alloc, bitmap_zalloc and bitmap_free

 - updates to Atmel, eeti. pxrc and iforce drivers

 - assorted driver cleanups and fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
  MAINTAINERS: Add PhoenixRC Flight Controller Adapter
  Input: do not use WARN() in input_alloc_absinfo()
  Input: mark expected switch fall-throughs
  Input: raydium_i2c_ts - use true and false for boolean values
  Input: evdev - switch to bitmap API
  Input: gpio-keys - switch to bitmap_zalloc()
  Input: elan_i2c_smbus - cast sizeof to int for comparison
  bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
  md: Avoid namespace collision with bitmap API
  dm: Avoid namespace collision with bitmap API
  Input: pm8941-pwrkey - add resin entry
  Input: pm8941-pwrkey - abstract register offsets and event code
  Input: iforce - reorganize joystick configuration lists
  Input: atmel_mxt_ts - move completion to after config crc is updated
  Input: atmel_mxt_ts - don't report zero pressure from T9
  Input: atmel_mxt_ts - zero terminate config firmware file
  Input: atmel_mxt_ts - refactor config update code to add context struct
  Input: atmel_mxt_ts - config CRC may start at T71
  Input: atmel_mxt_ts - remove unnecessary debug on ENOMEM
  Input: atmel_mxt_ts - remove duplicate setup of ABS_MT_PRESSURE
  ...
2018-08-18 16:48:07 -07:00
Linus Torvalds 7f02e1ce4a hwspinlock updates for v4.19
This introduces devres helpers and an API to request a lock by name,
 then migrates the sprd SPI driver to use these.
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Merge tag 'hwlock-v4.19' of git://github.com/andersson/remoteproc

Pull hwspinlock updates from Bjorn Andersson:
 "This introduces devres helpers and an API to request a lock by name,
  then migrates the sprd SPI driver to use these"

* tag 'hwlock-v4.19' of git://github.com/andersson/remoteproc:
  hwspinlock: Fix incorrect return pointers
  spi: sprd: Change to use devm_hwspin_lock_request_specific()
  spi: sprd: Replace of_hwspin_lock_get_id() with of_hwspin_lock_get_id_byname()
  hwspinlock: Fix one comment mistake
  hwspinlock: Remove redundant config
  hwspinlock: Add devm_xxx() APIs to register/unregister one hwlock controller
  hwspinlock: Add devm_xxx() APIs to request/free hwlock
  hwspinlock: Add one new API to support getting a specific hwlock by the name
2018-08-18 16:45:27 -07:00
Linus Torvalds 9a96d63aa8 rpmsg updates for v4.19
This fixes a few compile and kerneldoc warnings, allows rpmsg devices to
 handle power domains, allow for labeling GLINK edges and supports compat
 for rpmsg_char.
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Merge tag 'rpmsg-v4.19' of git://github.com/andersson/remoteproc

Pull rpmsg updates from Bjorn Andersson:
 "This fixes a few compile and kerneldoc warnings, allows rpmsg devices
  to handle power domains, allow for labeling GLINK edges and supports
  compat for rpmsg_char"

* tag 'rpmsg-v4.19' of git://github.com/andersson/remoteproc:
  rpmsg: Add compat ioctl for rpmsg char driver
  rpmsg: glink: Store edge name for glink device
  dt-bindings: soc: qcom: Add label for GLINK bindings
  rpmsg: core: add support to power domains for devices
  rpmsg: smd: fix kerneldoc warnings
  rpmsg: glink: Fix various kerneldoc warnings.
  rpmsg: glink: correctly annotate intent members
  rpmsg: smd: Add missing include of sizes.h
2018-08-18 16:43:57 -07:00
Linus Torvalds c54fc8658b remoteproc updates for v4.19
This adds support for pre-start and post-shutdown hooks for remoteproc
 subdevices, refactors the Qualcomm Hexagon support to allow reuse
 between several drivers, makes authentication in the MDT file loader
 optional, migrates a few format strings to use %pK and migrates the
 Davinci driver to use the reset framework.
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Merge tag 'rproc-v4.19' of git://github.com/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This adds support for pre-start and post-shutdown hooks for remoteproc
  subdevices, refactors the Qualcomm Hexagon support to allow reuse
  between several drivers, makes authentication in the MDT file loader
  optional, migrates a few format strings to use %pK and migrates the
  Davinci driver to use the reset framework"

* tag 'rproc-v4.19' of git://github.com/andersson/remoteproc:
  remoteproc/davinci: use the reset framework
  remoteproc/davinci: Mark error recovery as disabled
  remoteproc: st_slim: replace "%p" with "%pK"
  remoteproc: replace "%p" with "%pK"
  remoteproc: qcom: fix Q6V5_WCSS dependencies
  remoteproc: Reset table_ptr in rproc_start() failure paths
  remoteproc: qcom: q6v5-pil: fix modem hang on SDM845 after axis2 clk unvote
  remoteproc: qcom q6v5: fix modular build
  remoteproc: Introduce prepare and unprepare for subdevices
  remoteproc: rename subdev probe and remove functions
  remoteproc: Make client initialize ops in rproc_subdev
  remoteproc: Make start and stop in subdev optional
  remoteproc: Rename subdev functions to start/stop
  remoteproc: qcom: Introduce Hexagon V5 based WCSS driver
  remoteproc: qcom: q6v5-pil: Use common q6v5 helpers
  remoteproc: qcom: adsp: Use common q6v5 helpers
  remoteproc: q6v5: Extract common resource handling
  remoteproc: qcom: mdt_loader: Make the firmware authentication optional
2018-08-18 16:42:04 -07:00
Linus Torvalds 6eaac34ff3 linux-watchdog 4.19-rc1 tag
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Merge tag 'linux-watchdog-4.19-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - add MEN 16z069 IP-Core driver

 - renesas-wdt: add support for the R8A77990 wdt

 - stm32_iwdg: Add stm32mp1 support and pclk feature

 - sp805_wdt, orion_wdt, sprd_wdt: several improvements

 - imx2_wdt, stmp3xxx: switch to SPDX identifier

* tag 'linux-watchdog-4.19-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: fix dependencies of menz69_wdt.o
  watchdog: sp805: Add clock-frequency property
  watchdog: add driver for the MEN 16z069 IP-Core
  watchdog: sprd_wdt: Remove redundant dev_err call in sprd_wdt_probe()
  watchdog: stmp3xxx: Switch to SPDX identifier
  watchdog: imx2_wdt: Switch to SPDX identifier
  watchdog: sp805: set WDOG_HW_RUNNING when appropriate
  watchdog: sp805: add 'timeout-sec' DT property support
  dt-bindings: watchdog: Add optional 'timeout-sec' property for sp805
  dt-bindings: watchdog: Consolidate SP805 binding docs
  watchdog: orion_wdt: Mark watchdog as active when running at probe
  watchdog: stm32: add pclk feature for stm32mp1
  dt-bindings: watchdog: add stm32mp1 support
  dt-bindings: watchdog: renesas-wdt: Add support for the R8A77990 wdt
2018-08-18 16:16:57 -07:00
Linus Torvalds 13bf2cf9e2 DMAengine updates for v4.19-rc1
This round brings couple of framework changes, a new driver and usual driver
 updates:
  - New managed helper for dmaengine framework registration
  - Split dmaengine pause capability to pause and resume and allow drivers to
    report that individually
  - Update dma_request_chan_by_mask() to handle deferred probing
  - Move imx-sdma to use virt-dma
  - New driver for Actions Semi Owl family S900 controller
  - Minor updates to intel, renesas, mv_xor, pl330 etc
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Merge tag 'dmaengine-4.19-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull DMAengine updates from Vinod Koul:
 "This round brings couple of framework changes, a new driver and usual
  driver updates:

   - new managed helper for dmaengine framework registration

   - split dmaengine pause capability to pause and resume and allow
     drivers to report that individually

   - update dma_request_chan_by_mask() to handle deferred probing

   - move imx-sdma to use virt-dma

   - new driver for Actions Semi Owl family S900 controller

   - minor updates to intel, renesas, mv_xor, pl330 etc"

* tag 'dmaengine-4.19-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (46 commits)
  dmaengine: Add Actions Semi Owl family S900 DMA driver
  dt-bindings: dmaengine: Add binding for Actions Semi Owl SoCs
  dmaengine: sh: rcar-dmac: Should not stop the DMAC by rcar_dmac_sync_tcr()
  dmaengine: mic_x100_dma: use the new helper to simplify the code
  dmaengine: add a new helper dmaenginem_async_device_register
  dmaengine: imx-sdma: add memcpy interface
  dmaengine: imx-sdma: add SDMA_BD_MAX_CNT to replace '0xffff'
  dmaengine: dma_request_chan_by_mask() to handle deferred probing
  dmaengine: pl330: fix irq race with terminate_all
  dmaengine: Revert "dmaengine: mv_xor_v2: enable COMPILE_TEST"
  dmaengine: mv_xor_v2: use {lower,upper}_32_bits to configure HW descriptor address
  dmaengine: mv_xor_v2: enable COMPILE_TEST
  dmaengine: mv_xor_v2: move unmap to before callback
  dmaengine: mv_xor_v2: convert callback to helper function
  dmaengine: mv_xor_v2: kill the tasklets upon exit
  dmaengine: mv_xor_v2: explicitly freeup irq
  dmaengine: sh: rcar-dmac: Add dma_pause operation
  dmaengine: sh: rcar-dmac: add a new function to clear CHCR.DE with barrier
  dmaengine: idma64: Support dmaengine_terminate_sync()
  dmaengine: hsu: Support dmaengine_terminate_sync()
  ...
2018-08-18 15:55:59 -07:00
Linus Torvalds bbd60bffaf MMC core:
- Add some fine-grained hooks to further support HS400 tuning
  - Improve error path for bus width setting for HS400es
  - Use a common method when checking R1 status
 
 MMC host:
  - renesas_sdhi: Add r8a77990 support
  - renesas_sdhi: Add eMMC HS400 mode support
  - tmio/renesas_sdhi: Improve tuning/clock management
  - tmio: Add eMMC HS400 mode support
  - sunxi: Add support for 3.3V eMMC DDR mode
  - mmci: Initial support to manage variant specific callbacks
  - sdhci: Don't try 3.3V I/O voltage if not supported
  - sdhci-pci-dwc-mshc: Add driver to support Synopsys dwc mshc SDHCI PCI
  - sdhci-of-dwcmshc: Add driver to support Synopsys DWC MSHC SDHCI
  - sdhci-msm: Add support for new version sdcc V5
  - sdhci-pci-o2micro: Add support for O2 eMMC HS200 mode
  - sdhci-pci-o2micro: Add support for O2 hardware tuning
  - sdhci-pci-o2micro: Add MSI interrupt support for O2 SD host
  - sdhci-pci: Add support for Intel ICP
  - sdhci-tegra: Prevent ACMD23 and HS200 mode on Tegra 3
  - sdhci-tegra: Fix eMMC DDR52 mode
  - sdhci-tegra: Improve clock management
  - dw_mmc-rockchip: Document compatible string for px30
  - sdhci-esdhc-imx: Add support for 3.3V eMMC DDR mode
  - sdhci-of-esdhc: Set proper DMA mask for ls104x chips
  - sdhci-of-esdhc: Improve clock management
  - sdhci-of-arasan: Add a quirk to manage unstable clocks
  - dw_mmc-exynos: Address potential external abort during system resume
  - pxamci: Add support for common MMC DT bindings
  - pxamci: Several cleanups and improvements
  - pxamci: Merge immutable branch for pxa to switch to DMA slave maps
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Merge tag 'mmc-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "Updates for MMC for v4.19.

  MMC core:
   - Add some fine-grained hooks to further support HS400 tuning
   - Improve error path for bus width setting for HS400es
   - Use a common method when checking R1 status

  MMC host:
   - renesas_sdhi: Add r8a77990 support
   - renesas_sdhi: Add eMMC HS400 mode support
   - tmio/renesas_sdhi: Improve tuning/clock management
   - tmio: Add eMMC HS400 mode support
   - sunxi: Add support for 3.3V eMMC DDR mode
   - mmci: Initial support to manage variant specific callbacks
   - sdhci: Don't try 3.3V I/O voltage if not supported
   - sdhci-pci-dwc-mshc: Add driver to support Synopsys dwc mshc SDHCI PCI
   - sdhci-of-dwcmshc: Add driver to support Synopsys DWC MSHC SDHCI
   - sdhci-msm: Add support for new version sdcc V5
   - sdhci-pci-o2micro: Add support for O2 eMMC HS200 mode
   - sdhci-pci-o2micro: Add support for O2 hardware tuning
   - sdhci-pci-o2micro: Add MSI interrupt support for O2 SD host
   - sdhci-pci: Add support for Intel ICP
   - sdhci-tegra: Prevent ACMD23 and HS200 mode on Tegra 3
   - sdhci-tegra: Fix eMMC DDR52 mode
   - sdhci-tegra: Improve clock management
   - dw_mmc-rockchip: Document compatible string for px30
   - sdhci-esdhc-imx: Add support for 3.3V eMMC DDR mode
   - sdhci-of-esdhc: Set proper DMA mask for ls104x chips
   - sdhci-of-esdhc: Improve clock management
   - sdhci-of-arasan: Add a quirk to manage unstable clocks
   - dw_mmc-exynos: Address potential external abort during system resume
   - pxamci: Add support for common MMC DT bindings
   - pxamci: Several cleanups and improvements
   - pxamci: Merge immutable branch for pxa to switch to DMA slave maps"

* tag 'mmc-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (56 commits)
  mmc: core: improve reasonableness of bus width setting for HS400es
  mmc: tmio: remove unneeded variable in tmio_mmc_start_command()
  mmc: renesas_sdhi: Fix sampling clock position selecting
  mmc: tmio: Fix tuning flow
  mmc: sunxi: remove output of virtual base address
  dt-bindings: mmc: rockchip-dw-mshc: add description for px30
  mmc: renesas_sdhi: Add r8a77990 support
  mmc: sunxi: allow 3.3V DDR when DDR is available
  mmc: mmci: Add and implement a ->dma_setup() callback for qcom dml
  mmc: mmci: Initial support to manage variant specific callbacks
  mmc: tegra: Force correct divider calculation on DDR50/52
  mmc: sdhci: Add MSI interrupt support for O2 SD host
  mmc: sdhci: Add support for O2 hardware tuning
  mmc: sdhci: Export sdhci tuning function symbol
  mmc: sdhci: Change O2 Host HS200 mode clock frequency to 200MHz
  mmc: sdhci: Add support for O2 eMMC HS200 mode
  mmc: tegra: Add and use tegra_sdhci_get_max_clock()
  mmc: sdhci-esdhc-imx: fix indent
  mmc: sdhci-esdhc-imx: disable clocks before changing frequency
  mmc: tegra: prevent ACMD23 on Tegra 3
  ...
2018-08-18 15:54:05 -07:00