Commit Graph

984562 Commits

Author SHA1 Message Date
Jakub Kicinski
d1e1355aef Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 14:21:31 -08:00
Linus Torvalds
3aaf0a27ff clang-format update
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Merge tag 'clang-format-for-linux-v5.11-rc7' of git://github.com/ojeda/linux

Pull clang-format update from Miguel Ojeda:
 "Update with the latest for_each macro list"

* tag 'clang-format-for-linux-v5.11-rc7' of git://github.com/ojeda/linux:
  clang-format: Update with the latest for_each macro list
2021-02-02 10:46:59 -08:00
Linus Torvalds
7d36ccd4bd dma-mapping fix for 5.11
- fix a kernel crash in the new dma-mapping benchmark test (Barry Song)
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Merge tag 'dma-mapping-5.11-1' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fix from Christoph Hellwig:
 "Fix a kernel crash in the new dma-mapping benchmark test (Barry Song)"

* tag 'dma-mapping-5.11-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: benchmark: fix kernel crash when dma_map_single fails
2021-02-02 10:40:20 -08:00
Linus Torvalds
2e02677e96 vdpa: bugfix
A single mlx bugfix.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull vdpa fix from Michael Tsirkin:
 "A single mlx bugfix"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vdpa/mlx5: Fix memory key MTT population
2021-02-02 10:35:33 -08:00
Linus Torvalds
a992562872 Networking fixes for 5.11-rc7, including fixes from bpf and mac80211
trees.
 
 Current release - regressions:
 
  - ip_tunnel: fix mtu calculation
 
  - mlx5: fix function calculation for page trees
 
 Previous releases - regressions:
 
  - vsock: fix the race conditions in multi-transport support
 
  - neighbour: prevent a dead entry from updating gc_list
 
  - dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
 
 Previous releases - always broken:
 
  - bpf, cgroup: two copy_{from,to}_user() warn_on_once splats for BPF
                 cgroup getsockopt infra when user space is trying
 		to race against optlen, from Loris Reiff.
 
  - bpf: add missing fput() in BPF inode storage map update helper
 
  - udp: ipv4: manipulate network header of NATed UDP GRO fraglist
 
  - mac80211: fix station rate table updates on assoc
 
  - r8169: work around RTL8125 UDP HW bug
 
  - igc: report speed and duplex as unknown when device is runtime
         suspended
 
  - rxrpc: fix deadlock around release of dst cached on udp tunnel
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Networking fixes for 5.11-rc7, including fixes from bpf and mac80211
  trees.

  Current release - regressions:

   - ip_tunnel: fix mtu calculation

   - mlx5: fix function calculation for page trees

  Previous releases - regressions:

   - vsock: fix the race conditions in multi-transport support

   - neighbour: prevent a dead entry from updating gc_list

   - dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add

  Previous releases - always broken:

   - bpf, cgroup: two copy_{from,to}_user() warn_on_once splats for BPF
     cgroup getsockopt infra when user space is trying to race against
     optlen, from Loris Reiff.

   - bpf: add missing fput() in BPF inode storage map update helper

   - udp: ipv4: manipulate network header of NATed UDP GRO fraglist

   - mac80211: fix station rate table updates on assoc

   - r8169: work around RTL8125 UDP HW bug

   - igc: report speed and duplex as unknown when device is runtime
     suspended

   - rxrpc: fix deadlock around release of dst cached on udp tunnel"

* tag 'net-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (36 commits)
  net: hsr: align sup_multicast_addr in struct hsr_priv to u16 boundary
  net: ipa: fix two format specifier errors
  net: ipa: use the right accessor in ipa_endpoint_status_skip()
  net: ipa: be explicit about endianness
  net: ipa: add a missing __iomem attribute
  net: ipa: pass correct dma_handle to dma_free_coherent()
  r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set
  net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS
  net: mvpp2: TCAM entry enable should be written after SRAM data
  net: lapb: Copy the skb before sending a packet
  net/mlx5e: Release skb in case of failure in tc update skb
  net/mlx5e: Update max_opened_tc also when channels are closed
  net/mlx5: Fix leak upon failure of rule creation
  net/mlx5: Fix function calculation for page trees
  docs: networking: swap words in icmp_errors_use_inbound_ifaddr doc
  udp: ipv4: manipulate network header of NATed UDP GRO fraglist
  net: ip_tunnel: fix mtu calculation
  vsock: fix the race conditions in multi-transport support
  net: sched: replaced invalid qdisc tree flush helper in qdisc_replace
  ibmvnic: device remove has higher precedence over reset
  ...
2021-02-02 10:26:09 -08:00
Andreas Oetken
6c9f18f294 net: hsr: align sup_multicast_addr in struct hsr_priv to u16 boundary
sup_multicast_addr is passed to ether_addr_equal for address comparison
which casts the address inputs to u16 leading to an unaligned access.
Aligning the sup_multicast_addr to u16 boundary fixes the issue.

Signed-off-by: Andreas Oetken <andreas.oetken@siemens.com>
Link: https://lore.kernel.org/r/20210202090304.2740471-1-ennoerlangen@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:57:18 -08:00
Jakub Kicinski
5a4cb54675 mlx5-fixes-2021-02-01
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Merge tag 'mlx5-fixes-2021-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5 fixes 2021-02-01

Please note the first patch in this series
("Fix function calculation for page trees") is fixing a regression
due to previous fix in net which you didn't include in your previous
rc pr. So I hope this series will make it into your next rc pr,
so mlx5 won't be broken in the next rc.

* tag 'mlx5-fixes-2021-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5e: Release skb in case of failure in tc update skb
  net/mlx5e: Update max_opened_tc also when channels are closed
  net/mlx5: Fix leak upon failure of rule creation
  net/mlx5: Fix function calculation for page trees
====================

Link: https://lore.kernel.org/r/20210202070703.617251-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:51:26 -08:00
Jakub Kicinski
f2539e14f3 Merge branch 'net-ipa-a-few-bug-fixes'
Alex Elder says:

====================
net: ipa: a few bug fixes

This series fixes four minor bugs.  The first two are things that
sparse points out.  All four are very simple and each patch should
explain itself pretty well.
====================

Link: https://lore.kernel.org/r/20210201232609.3524451-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:48:17 -08:00
Alex Elder
113b6ea09c net: ipa: fix two format specifier errors
Fix two format specifiers that used %lu for a size_t in "ipa_mem.c".

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:48:15 -08:00
Alex Elder
c13899f187 net: ipa: use the right accessor in ipa_endpoint_status_skip()
When extracting the destination endpoint ID from the status in
ipa_endpoint_status_skip(), u32_get_bits() is used.  This happens to
work, but it's wrong: the structure field is only 8 bits wide
instead of 32.

Fix this by using u8_get_bits() to get the destination endpoint ID.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:48:15 -08:00
Alex Elder
088f8a2396 net: ipa: be explicit about endianness
Sparse warns that the assignment of the metadata mask for a QMAP
endpoint in ipa_endpoint_init_hdr_metadata_mask() is a bad
assignment.  We know we want the mask value to be big endian, even
though the value we write is in host byte order.  Use a __force
tag to indicate we really mean it.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:48:15 -08:00
Alex Elder
e6cdd6d80b net: ipa: add a missing __iomem attribute
The virt local variable in gsi_channel_state() does not have an
__iomem attribute but should.  Fix this.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Amy Parker <enbyamy@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:48:15 -08:00
Dan Carpenter
4ace7a6e28 net: ipa: pass correct dma_handle to dma_free_coherent()
The "ring->addr = addr;" assignment is done a few lines later so we
can't use "ring->addr" yet.  The correct dma_handle is "addr".

Fixes: 650d160382 ("soc: qcom: ipa: the generic software interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/YBjpTU2oejkNIULT@mwanda
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:46:22 -08:00
Heiner Kallweit
cc9f07a838 r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set
So far phy_disconnect() is called before free_irq(). If CONFIG_DEBUG_SHIRQ
is set and interrupt is shared, then free_irq() creates an "artificial"
interrupt by calling the interrupt handler. The "link change" flag is set
in the interrupt status register, causing phylib to eventually call
phy_suspend(). Because the net_device is detached from the PHY already,
the PHY driver can't recognize that WoL is configured and powers down the
PHY.

Fixes: f1e911d5d0 ("r8169: add basic phylib support")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/fe732c2c-a473-9088-3974-df83cfbd6efd@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:44:15 -08:00
Sabyrzhan Tasbolatov
a11148e6fc net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS
syzbot found WARNING in rds_rdma_extra_size [1] when RDS_CMSG_RDMA_ARGS
control message is passed with user-controlled
0x40001 bytes of args->nr_local, causing order >= MAX_ORDER condition.

The exact value 0x40001 can be checked with UIO_MAXIOV which is 0x400.
So for kcalloc() 0x400 iovecs with sizeof(struct rds_iovec) = 0x10
is the closest limit, with 0x10 leftover.

Same condition is currently done in rds_cmsg_rdma_args().

[1] WARNING: mm/page_alloc.c:5011
[..]
Call Trace:
 alloc_pages_current+0x18c/0x2a0 mm/mempolicy.c:2267
 alloc_pages include/linux/gfp.h:547 [inline]
 kmalloc_order+0x2e/0xb0 mm/slab_common.c:837
 kmalloc_order_trace+0x14/0x120 mm/slab_common.c:853
 kmalloc_array include/linux/slab.h:592 [inline]
 kcalloc include/linux/slab.h:621 [inline]
 rds_rdma_extra_size+0xb2/0x3b0 net/rds/rdma.c:568
 rds_rm_size net/rds/send.c:928 [inline]

Reported-by: syzbot+1bd2b07f93745fa38425@syzkaller.appspotmail.com
Signed-off-by: Sabyrzhan Tasbolatov <snovitoll@gmail.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Link: https://lore.kernel.org/r/20210201203233.1324704-1-snovitoll@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:44:08 -08:00
Stefan Chulski
43f4a20a12 net: mvpp2: TCAM entry enable should be written after SRAM data
Last TCAM data contains TCAM enable bit.
It should be written after SRAM data before entry enabled.

Fixes: 3f518509de ("ethernet: Add new driver for Marvell Armada 375 network unit")
Signed-off-by: Stefan Chulski <stefanc@marvell.com>
Link: https://lore.kernel.org/r/1612172139-28343-1-git-send-email-stefanc@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:42:38 -08:00
Xie He
88c7a9fd9b net: lapb: Copy the skb before sending a packet
When sending a packet, we will prepend it with an LAPB header.
This modifies the shared parts of a cloned skb, so we should copy the
skb rather than just clone it, before we prepend the header.

In "Documentation/networking/driver.rst" (the 2nd point), it states
that drivers shouldn't modify the shared parts of a cloned skb when
transmitting.

The "dev_queue_xmit_nit" function in "net/core/dev.c", which is called
when an skb is being sent, clones the skb and sents the clone to
AF_PACKET sockets. Because the LAPB drivers first remove a 1-byte
pseudo-header before handing over the skb to us, if we don't copy the
skb before prepending the LAPB header, the first byte of the packets
received on AF_PACKET sockets can be corrupted.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Acked-by: Martin Schiller <ms@dev.tdt.de>
Link: https://lore.kernel.org/r/20210201055706.415842-1-xie.he.0141@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:40:48 -08:00
Jakub Kicinski
f418bad6cc Two fixes:
- station rate tables were not updated correctly
    after association, leading to bad configuration
  - rtl8723bs (staging) was initializing data incorrectly
    after the previous fix and needed to move the init
    later
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Merge tag 'mac80211-for-net-2021-02-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Two fixes:
 - station rate tables were not updated correctly
   after association, leading to bad configuration
 - rtl8723bs (staging) was initializing data incorrectly
   after the previous fix and needed to move the init
   later

* tag 'mac80211-for-net-2021-02-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211:
  staging: rtl8723bs: Move wiphy setup to after reading the regulatory settings from the chip
  mac80211: fix station rate table updates on assoc
====================

Link: https://lore.kernel.org/r/20210202143505.37610-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-02 08:37:01 -08:00
Maor Dickman
a34ffec8af net/mlx5e: Release skb in case of failure in tc update skb
In case of failure in tc update skb the packet is dropped
without freeing the skb.

Fixed by freeing the skb in case failure in tc update skb.

Fixes: d6d2778286 ("net/mlx5: E-Switch, Restore chain id on miss")
Fixes: c756909722 ("net/mlx5e: Add tc chains offload support for nic flows")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-02-01 23:02:02 -08:00
Maxim Mikityanskiy
5a2ba25a55 net/mlx5e: Update max_opened_tc also when channels are closed
max_opened_tc is used for stats, so that potentially non-zero stats
won't disappear when num_tc decreases. However, mlx5e_setup_tc_mqprio
fails to update it in the flow where channels are closed.

This commit fixes it. The new value of priv->channels.params.num_tc is
always checked on exit. In case of errors it will just be the old value,
and in case of success it will be the updated value.

Fixes: 05909babce ("net/mlx5e: Avoid reset netdev stats on configuration changes")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-02-01 23:02:02 -08:00
Maor Gottlieb
a5bfe6b467 net/mlx5: Fix leak upon failure of rule creation
When creation of a new rule that requires allocation of an FTE fails,
need to call to tree_put_node on the FTE in order to release its'
resource.

Fixes: cefc23554f ("net/mlx5: Fix FTE cleanup")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Alaa Hleihel <alaa@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-02-01 23:02:01 -08:00
Daniel Jurgens
ed5e83a3c0 net/mlx5: Fix function calculation for page trees
The function calculation always results in a value of 0. This works
generally, but when the release all pages feature is enabled it will
result in crashes.

Fixes: 0aa128475d ("net/mlx5: Maintain separate page trees for ECPF and PF functions")
Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-02-01 23:02:01 -08:00
Jakub Kicinski
188fa104f2 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2021-02-01

This series contains updates to igc and i40e drivers.

Kai-Heng Feng fixes igc to report unknown speed and duplex during suspend
as an attempted read will cause errors.

Kevin Lo sets the default value to -IGC_ERR_NVM instead of success for
writing shadow RAM as this could miss a timeout. Also propagates the return
value for Flow Control configuration to properly pass on errors for igc.

Aleksandr reverts commit 2ad1274fa3 ("i40e: don't report link up for a VF
who hasn't enabled queues") as this can cause link flapping.

* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  i40e: Revert "i40e: don't report link up for a VF who hasn't enabled queues"
  igc: check return value of ret_val in igc_config_fc_after_link_up
  igc: set the default return value to -IGC_ERR_NVM in igc_write_nvm_srwr
  igc: Report speed and duplex as unknown when device is runtime suspended
====================

Link: https://lore.kernel.org/r/20210201214618.852831-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 20:23:44 -08:00
Jakub Kicinski
9ae4bdc6e4 Merge branch 'rework-the-memory-barrier-for-scrq-entry'
Lijun Pan says:

====================
rework the memory barrier for SCRQ entry

This series rework the memory barrier for SCRQ (Sub-Command-Response
Queue) entry.
====================

Link: https://lore.kernel.org/r/20210130011905.1485-1-ljp@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 20:21:14 -08:00
Lijun Pan
2719cb445d ibmvnic: remove unnecessary rmb() inside ibmvnic_poll
rmb() can be removed since:
1. pending_scrq() has dma_rmb() at the function end;
2. dma_rmb(), though weaker, is enough here.

Signed-off-by: Lijun Pan <ljp@linux.ibm.com>
Acked-by: Dwip Banerjee <dnbanerg@us.ibm.com>
Acked-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 20:21:12 -08:00
Lijun Pan
665ab1eb18 ibmvnic: rework to ensure SCRQ entry reads are properly ordered
Move the dma_rmb() between pending_scrq() and ibmvnic_next_scrq()
into the end of pending_scrq() to save the duplicated code since
this dma_rmb will be used 3 times.

Signed-off-by: Lijun Pan <ljp@linux.ibm.com>
Acked-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 20:21:12 -08:00
Vincent Bernat
3162820154 docs: networking: swap words in icmp_errors_use_inbound_ifaddr doc
Signed-off-by: Vincent Bernat <vincent@bernat.ch>
Link: https://lore.kernel.org/r/20210130190518.854806-1-vincent@bernat.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 20:03:51 -08:00
Dongseok Yi
c3df39ac9b udp: ipv4: manipulate network header of NATed UDP GRO fraglist
UDP/IP header of UDP GROed frag_skbs are not updated even after NAT
forwarding. Only the header of head_skb from ip_finish_output_gso ->
skb_gso_segment is updated but following frag_skbs are not updated.

A call path skb_mac_gso_segment -> inet_gso_segment ->
udp4_ufo_fragment -> __udp_gso_segment -> __udp_gso_segment_list
does not try to update UDP/IP header of the segment list but copy
only the MAC header.

Update port, addr and check of each skb of the segment list in
__udp_gso_segment_list. It covers both SNAT and DNAT.

Fixes: 9fd1ff5d2a (udp: Support UDP fraglist GRO/GSO.)
Signed-off-by: Dongseok Yi <dseok.yi@samsung.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Link: https://lore.kernel.org/r/1611962007-80092-1-git-send-email-dseok.yi@samsung.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 20:02:16 -08:00
Vadim Fedorenko
28e104d002 net: ip_tunnel: fix mtu calculation
dev->hard_header_len for tunnel interface is set only when header_ops
are set too and already contains full overhead of any tunnel encapsulation.
That's why there is not need to use this overhead twice in mtu calc.

Fixes: fdafed4599 ("ip_gre: set dev->hard_header_len and dev->needed_headroom properly")
Reported-by: Slava Bacherikov <mail@slava.cc>
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Link: https://lore.kernel.org/r/1611959267-20536-1-git-send-email-vfedorenko@novek.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 19:58:23 -08:00
Alexander Popov
c518adafa3 vsock: fix the race conditions in multi-transport support
There are multiple similar bugs implicitly introduced by the
commit c0cfa2d8a7 ("vsock: add multi-transports support") and
commit 6a2c096210 ("vsock: prevent transport modules unloading").

The bug pattern:
 [1] vsock_sock.transport pointer is copied to a local variable,
 [2] lock_sock() is called,
 [3] the local variable is used.
VSOCK multi-transport support introduced the race condition:
vsock_sock.transport value may change between [1] and [2].

Let's copy vsock_sock.transport pointer to local variables after
the lock_sock() call.

Fixes: c0cfa2d8a7 ("vsock: add multi-transports support")
Signed-off-by: Alexander Popov <alex.popov@linux.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Link: https://lore.kernel.org/r/20210201084719.2257066-1-alex.popov@linux.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 19:54:30 -08:00
Jakub Kicinski
1a2b60f6f1 mlx5-dr-2021-01-29
Add support for Connect-X6DX Software steering
 
 This series adds SW Steering support for Connect-X6DX.
 
 Since the STE and actions formats are different on this new HW,
 we implemented the HW specific STEv1 layer on the infrastructure
 implemented in previous mlx5 DR patchset to support all the
 functionalities as previous devices.
 
 Most of the code in this series very is low level HW specific, we
 implement the function pointers for the generic SW steering layer.
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Merge tag 'mlx5-dr-2021-01-29' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-dr-2021-01-29

Add support for Connect-X6DX Software steering

This series adds SW Steering support for Connect-X6DX.

Since the STE and actions formats are different on this new HW,
we implemented the HW specific STEv1 layer on the infrastructure
implemented in previous mlx5 DR patchset to support all the
functionalities as previous devices.

Most of the code in this series very is low level HW specific, we
implement the function pointers for the generic SW steering layer.

* tag 'mlx5-dr-2021-01-29' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: DR, Allow SW steering for sw_owner_v2 devices
  net/mlx5: DR, Copy all 64B whenever replacing STE in the head of miss-list
  net/mlx5: DR, Use HW specific logic API when writing STE
  net/mlx5: DR, Use the right size when writing partial STE into HW
  net/mlx5: DR, Add STEv1 modify header logic
  net/mlx5: DR, Add STEv1 action apply logic
  net/mlx5: DR, Add STEv1 setters and getters
  net/mlx5: DR, Allow native protocol support for HW STEv1
  net/mlx5: DR, Add HW STEv1 match logic
  net/mlx5: DR, Add match STEv1 structs to ifc
  net/mlx5: DR, Fix potential shift wrapping of 32-bit value
====================

Link: https://lore.kernel.org/r/20210130022618.317351-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 18:50:12 -08:00
Alexander Ovechkin
938e0fcd32 net: sched: replaced invalid qdisc tree flush helper in qdisc_replace
Commit e5f0e8f8e4 ("net: sched: introduce and use qdisc tree flush/purge helpers")
introduced qdisc tree flush/purge helpers, but erroneously used flush helper
instead of purge helper in qdisc_replace function.
This issue was found in our CI, that tests various qdisc setups by configuring
qdisc and sending data through it. Call of invalid helper sporadically leads
to corruption of vt_tree/cf_tree of hfsc_class that causes kernel oops:

 Oops: 0000 [#1] SMP PTI
 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-8f6859df #1
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
 RIP: 0010:rb_insert_color+0x18/0x190
 Code: c3 31 c0 c3 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 48 8b 07 48 85 c0 0f 84 05 01 00 00 48 8b 10 f6 c2 01 0f 85 34 01 00 00 <48> 8b 4a 08 49 89 d0 48 39 c1 74 7d 48 85 c9 74 32 f6 01 01 75 2d
 RSP: 0018:ffffc900000b8bb0 EFLAGS: 00010246
 RAX: ffff8881ef4c38b0 RBX: ffff8881d956e400 RCX: ffff8881ef4c38b0
 RDX: 0000000000000000 RSI: ffff8881d956f0a8 RDI: ffff8881d956e4b0
 RBP: 0000000000000000 R08: 000000d5c4e249da R09: 1600000000000000
 R10: ffffc900000b8be0 R11: ffffc900000b8b28 R12: 0000000000000001
 R13: 000000000000005a R14: ffff8881f0905000 R15: ffff8881f0387d00
 FS:  0000000000000000(0000) GS:ffff8881f8b00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000008 CR3: 00000001f4796004 CR4: 0000000000060ee0
 Call Trace:
  <IRQ>
  init_vf.isra.19+0xec/0x250 [sch_hfsc]
  hfsc_enqueue+0x245/0x300 [sch_hfsc]
  ? fib_rules_lookup+0x12a/0x1d0
  ? __dev_queue_xmit+0x4b6/0x930
  ? hfsc_delete_class+0x250/0x250 [sch_hfsc]
  __dev_queue_xmit+0x4b6/0x930
  ? ip6_finish_output2+0x24d/0x590
  ip6_finish_output2+0x24d/0x590
  ? ip6_output+0x6c/0x130
  ip6_output+0x6c/0x130
  ? __ip6_finish_output+0x110/0x110
  mld_sendpack+0x224/0x230
  mld_ifc_timer_expire+0x186/0x2c0
  ? igmp6_group_dropped+0x200/0x200
  call_timer_fn+0x2d/0x150
  run_timer_softirq+0x20c/0x480
  ? tick_sched_do_timer+0x60/0x60
  ? tick_sched_timer+0x37/0x70
  __do_softirq+0xf7/0x2cb
  irq_exit+0xa0/0xb0
  smp_apic_timer_interrupt+0x74/0x150
  apic_timer_interrupt+0xf/0x20
  </IRQ>

Fixes: e5f0e8f8e4 ("net: sched: introduce and use qdisc tree flush/purge helpers")
Signed-off-by: Alexander Ovechkin <ovov@yandex-team.ru>
Reported-by: Alexander Kuznetsov <wwfq@yandex-team.ru>
Acked-by: Dmitry Monakhov <dmtrmonakhov@yandex-team.ru>
Acked-by: Dmitry Yakunin <zeil@yandex-team.ru>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Link: https://lore.kernel.org/r/20210201200049.299153-1-ovov@yandex-team.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 18:40:18 -08:00
Lijun Pan
5e9eff5dfa ibmvnic: device remove has higher precedence over reset
Returning -EBUSY in ibmvnic_remove() does not actually hold the
removal procedure since driver core doesn't care for the return
value (see __device_release_driver() in drivers/base/dd.c
calling dev->bus->remove()) though vio_bus_remove
(in arch/powerpc/platforms/pseries/vio.c) records the
return value and passes it on. [1]

During the device removal precedure, checking for resetting
bit is dropped so that we can continue executing all the
cleanup calls in the rest of the remove function. Otherwise,
it can cause latent memory leaks and kernel crashes.

[1] https://lore.kernel.org/linuxppc-dev/20210117101242.dpwayq6wdgfdzirl@pengutronix.de/T/#m48f5befd96bc9842ece2a3ad14f4c27747206a53
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 7d7195a026 ("ibmvnic: Do not process device remove during device reset")
Signed-off-by: Lijun Pan <ljp@linux.ibm.com>
Link: https://lore.kernel.org/r/20210129043402.95744-1-ljp@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 18:32:29 -08:00
Jakub Kicinski
f222a99376 Merge branch 'net-dsa-hellcreek-report-tables-sizes'
Kurt Kanzenbach says:

====================
net: dsa: hellcreek: Report tables sizes

Florian, Andrew and Vladimir suggested at some point to use devlink for
reporting tables, features and debugging counters instead of using debugfs and
printk.

So, start by reporting the VLAN and FDB table sizes.
====================

Link: https://lore.kernel.org/r/20210130135934.22870-1-kurt@kmk-computers.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 18:28:35 -08:00
Kurt Kanzenbach
8486e83fe1 net: dsa: hellcreek: Report FDB table occupancy
Report the FDB table size and occupancy via devlink. The actual size depends on
the used Hellcreek version:

|root@tsn:~# devlink resource show platform/ff240000.switch
|platform/ff240000.switch:
|  name VLAN size 4096 occ 2 unit entry dpipe_tables none
|  name FDB size 256 occ 6 unit entry dpipe_tables none

Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 18:28:34 -08:00
Kurt Kanzenbach
7f976d5cf1 net: dsa: hellcreek: Report VLAN table occupancy
The VLAN membership configuration is cached in software already. So, it can be
reported via devlink. Add support for it:

|root@tsn:~# devlink resource show platform/ff240000.switch
|platform/ff240000.switch:
|  name VLAN size 4096 occ 4 unit entry dpipe_tables none

Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 18:28:33 -08:00
DENG Qingfang
f72f2fb8fb net: dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
Having multiple destination ports for a unicast address does not make
sense.
Make port_db_load_purge override existent unicast portvec instead of
adding a new port bit.

Fixes: 8847293992 ("net: dsa: mv88e6xxx: handle multiple ports in ATU")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20210130134334.10243-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-01 18:24:49 -08:00
Aleksandr Loktionov
f559a35604 i40e: Revert "i40e: don't report link up for a VF who hasn't enabled queues"
This reverts commit 2ad1274fa3

VF queues were not brought up when PF was brought up after being
downed if the VF driver disabled VFs queues during PF down.
This could happen in some older or external VF driver implementations.
The problem was that PF driver used vf->queues_enabled as a condition
to decide what link-state it would send out which caused the issue.

Remove the check for vf->queues_enabled in the VF link notify.
Now VF will always be notified of the current link status.
Also remove the queues_enabled member from i40e_vf structure as it is
not used anymore. Otherwise VNF implementation was broken and caused
a link flap.

The original commit was a workaround to avoid breaking existing VFs though
it's really a fault of the VF code not the PF. The commit should be safe to
revert as all of the VFs we know of have been fixed. Also, since we now
know there is a related bug in the workaround, removing it is preferred.

Fixes: 2ad1274fa3 ("i40e: don't report link up for a VF who hasn't enabled")
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-01 13:18:31 -08:00
Linus Torvalds
88bb507a74 media fixes for v5.11-rc7
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Merge tag 'media/v5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "The rockship rkisp1 driver will be promoted from staging in 5.11.

  While not too late, do a few uAPI changes which are needed to better
  support its functionalities"

* tag 'media/v5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: rockchip: rkisp1: extend uapi array sizes
  media: rockchip: rkisp1: carry ip version information
  media: rockchip: rkisp1: reduce number of histogram grid elements in uapi
  media: rkisp1: stats: mask the hist_bins values
  media: rkisp1: stats: remove a wrong cast to u8
  media: rkisp1: uapi: change hist_bins array type from __u16 to __u32
2021-02-01 11:15:57 -08:00
Hans de Goede
50af06d43e staging: rtl8723bs: Move wiphy setup to after reading the regulatory settings from the chip
Commit 81f153faac ("staging: rtl8723bs: fix wireless regulatory API
misuse") moved the wiphy_apply_custom_regulatory() call to earlier in the
driver's init-sequence, so that it gets called before wiphy_register().

But at this point in time the eFuses which code the regulatory-settings
for the chip have not been read by the driver yet, causing
_rtw_reg_apply_flags() to set the IEEE80211_CHAN_DISABLED flag on *all*
channels.

On the device where I initially tested the fix, a Jumper EZpad 7 tablet,
this does not cause any problems because shortly after init the
rtw_reg_notifier() gets called fixing things up. I guess this happens
into response to receiving a (broadcast) packet with regulatory info
from the access-point ?

But on another device with a RTL8723BS wifi chip, an Acer Switch 10E
(SW3-016), the rtw_reg_notifier() never gets called. I assume that some
fuse has been set on this device to ignore regulatory info received from
access-points.

This means that on the Acer the driver is stuck in a state with all
channels disabled, leading to non working Wifi.

We cannot move the wiphy_apply_custom_regulatory() call back, because
that call must be made before the wiphy_register() call.

Instead move the entire rtw_wdev_alloc() call to after the Efuses have
been read, fixing all channels being disabled in the initial channel-map.

Fixes: 81f153faac ("staging: rtl8723bs: fix wireless regulatory API misuse")
Cc: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210201152956.370186-2-hdegoede@redhat.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-02-01 19:26:10 +01:00
Kevin Lo
b881145642 igc: check return value of ret_val in igc_config_fc_after_link_up
Check return value from ret_val to make error check actually work.

Fixes: 4eb8080143 ("igc: Add setup link functionality")
Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-01 10:04:43 -08:00
Kevin Lo
ebc8d12506 igc: set the default return value to -IGC_ERR_NVM in igc_write_nvm_srwr
This patch sets the default return value to -IGC_ERR_NVM in
igc_write_nvm_srwr. Without this change it wouldn't lead to a shadow RAM
write EEWR timeout.

Fixes: ab40561268 ("igc: Add NVM support")
Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-01 10:04:43 -08:00
Kai-Heng Feng
2e99dedc73 igc: Report speed and duplex as unknown when device is runtime suspended
Similar to commit 165ae7a8fe ("igb: Report speed and duplex as unknown
when device is runtime suspended"), if we try to read speed and duplex
sysfs while the device is runtime suspended, igc will complain and
stops working:

[  123.449883] igc 0000:03:00.0 enp3s0: PCIe link lost, device now detached
[  123.450052] BUG: kernel NULL pointer dereference, address: 0000000000000008
[  123.450056] #PF: supervisor read access in kernel mode
[  123.450058] #PF: error_code(0x0000) - not-present page
[  123.450059] PGD 0 P4D 0
[  123.450064] Oops: 0000 [#1] SMP NOPTI
[  123.450068] CPU: 0 PID: 2525 Comm: udevadm Tainted: G     U  W  OE     5.10.0-1002-oem #2+rkl2-Ubuntu
[  123.450078] RIP: 0010:igc_rd32+0x1c/0x90 [igc]
[  123.450080] Code: c0 5d c3 b8 fd ff ff ff c3 0f 1f 44 00 00 0f 1f 44 00 00 55 89 f0 48 89 e5 41 56 41 55 41 54 49 89 c4 53 48 8b 57 08 48 01 d0 <44> 8b 28 41 83 fd ff 74 0c 5b 44 89 e8 41 5c 41 5d 4

[  123.450083] RSP: 0018:ffffb0d100d6fcc0 EFLAGS: 00010202
[  123.450085] RAX: 0000000000000008 RBX: ffffb0d100d6fd30 RCX: 0000000000000000
[  123.450087] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff945a12716c10
[  123.450089] RBP: ffffb0d100d6fce0 R08: ffff945a12716550 R09: ffff945a09874000
[  123.450090] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000008
[  123.450092] R13: ffff945a12716000 R14: ffff945a037da280 R15: ffff945a037da290
[  123.450094] FS:  00007f3b34c868c0(0000) GS:ffff945b89200000(0000) knlGS:0000000000000000
[  123.450096] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  123.450098] CR2: 0000000000000008 CR3: 00000001144de006 CR4: 0000000000770ef0
[  123.450100] PKRU: 55555554
[  123.450101] Call Trace:
[  123.450111]  igc_ethtool_get_link_ksettings+0xd6/0x1b0 [igc]
[  123.450118]  __ethtool_get_link_ksettings+0x71/0xb0
[  123.450123]  duplex_show+0x74/0xc0
[  123.450129]  dev_attr_show+0x1d/0x40
[  123.450134]  sysfs_kf_seq_show+0xa1/0x100
[  123.450137]  kernfs_seq_show+0x27/0x30
[  123.450142]  seq_read+0xb7/0x400
[  123.450148]  ? common_file_perm+0x72/0x170
[  123.450151]  kernfs_fop_read+0x35/0x1b0
[  123.450155]  vfs_read+0xb5/0x1b0
[  123.450157]  ksys_read+0x67/0xe0
[  123.450160]  __x64_sys_read+0x1a/0x20
[  123.450164]  do_syscall_64+0x38/0x90
[  123.450168]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  123.450170] RIP: 0033:0x7f3b351fe142
[  123.450173] Code: c0 e9 c2 fe ff ff 50 48 8d 3d 3a ca 0a 00 e8 f5 19 02 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
[  123.450174] RSP: 002b:00007fffef2ec138 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  123.450177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3b351fe142
[  123.450179] RDX: 0000000000001001 RSI: 00005644c047f070 RDI: 0000000000000003
[  123.450180] RBP: 00007fffef2ec340 R08: 00005644c047f070 R09: 00007f3b352d9320
[  123.450182] R10: 00005644c047c010 R11: 0000000000000246 R12: 00005644c047cbf0
[  123.450184] R13: 00005644c047e6d0 R14: 0000000000000003 R15: 00007fffef2ec140
[  123.450189] Modules linked in: rfcomm ccm cmac algif_hash algif_skcipher af_alg bnep toshiba_acpi industrialio toshiba_haps hp_accel lis3lv02d btusb btrtl btbcm btintel bluetooth ecdh_generic ecc joydev input_leds nls_iso8859_1 snd_sof_pci snd_sof_intel_byt snd_sof_intel_ipc snd_sof_intel_hda_common snd_soc_hdac_hda snd_hda_codec_hdmi snd_sof_xtensa_dsp snd_sof_intel_hda snd_sof snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation soundwire_cadence snd_hda_codec snd_hda_core ath10k_pci snd_hwdep intel_rapl_msr intel_rapl_common ath10k_core soundwire_bus snd_soc_core x86_pkg_temp_thermal ath intel_powerclamp snd_compress ac97_bus snd_pcm_dmaengine mac80211 snd_pcm coretemp snd_seq_midi snd_seq_midi_event snd_rawmidi kvm_intel cfg80211 snd_seq snd_seq_device snd_timer mei_hdcp kvm libarc4 snd crct10dif_pclmul ghash_clmulni_intel aesni_intel
 mei_me dell_wmi
[  123.450266]  dell_smbios soundcore sparse_keymap dcdbas crypto_simd cryptd mei dell_uart_backlight glue_helper ee1004 wmi_bmof intel_wmi_thunderbolt dell_wmi_descriptor mac_hid efi_pstore acpi_pad acpi_tad intel_cstate sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs blake2b_generic raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crc32_pclmul rc_core drm intel_lpss_pci i2c_i801 ahci igc intel_lpss i2c_smbus idma64 xhci_pci libahci virt_dma xhci_pci_renesas wmi video pinctrl_tigerlake
[  123.450335] CR2: 0000000000000008
[  123.450338] ---[ end trace 9f731e38b53c35cc ]---

The more generic approach will be wrap get_link_ksettings() with begin()
and complete() callbacks, and calls runtime resume and runtime suspend
routine respectively. However, igc is like igb, runtime resume routine
uses rtnl_lock() which upper ethtool layer also uses.

So to prevent a deadlock on rtnl, take a different approach, use
pm_runtime_suspended() to avoid reading register while device is runtime
suspended.

Fixes: 8c5ad0dae9 ("igc: Add ethtool support")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-01 10:04:43 -08:00
Felix Fietkau
18fe0fae61 mac80211: fix station rate table updates on assoc
If the driver uses .sta_add, station entries are only uploaded after the sta
is in assoc state. Fix early station rate table updates by deferring them
until the sta has been uploaded.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20210201083324.3134-1-nbd@nbd.name
[use rcu_access_pointer() instead since we won't dereference here]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2021-02-01 15:07:09 +01:00
Linus Torvalds
1048ba83fb Linux 5.11-rc6 2021-01-31 13:50:09 -08:00
Linus Torvalds
ac8c6edd20 A single EFI fix from Lukas:
- handle boolean device properties imported from Apple firmware
   correctly.
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Merge tag 'efi-urgent-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull EFI fix from Borislav Petkov:
 "A single fix from Lukas: handle boolean device properties imported
  from Apple firmware correctly"

* tag 'efi-urgent-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/apple-properties: Reinstate support for boolean properties
2021-01-31 11:57:37 -08:00
Linus Torvalds
f5a376edde A single fix for objtool to generate proper unwind info for newer
toolchains which do not generate section symbols anymore. And a cleanup
 ontop.
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Merge tag 'x86_entry_for_v5.11_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fix from Borislav Petkov:
 "A single fix for objtool to generate proper unwind info for newer
  toolchains which do not generate section symbols anymore. And a
  cleanup ontop.

  This was originally going to go during the next merge window but
  people can already trigger a build error with binutils-2.36 which
  doesn't emit section symbols - something which objtool relies on - so
  let's expedite it"

* tag 'x86_entry_for_v5.11_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/entry: Remove put_ret_addr_in_rdi THUNK macro argument
  x86/entry: Emit a symbol for register restoring thunk
2021-01-31 11:48:12 -08:00
Linus Torvalds
17b756d037 A fix for handling advertised, but non-existent 146818 RTCs correctly. With
the recent UIP handling changes the time readout of non-existent RTCs hangs
 forever as the read returns always 0xFF which means the UIP bit is
 set. Sanity check the RTC before registering by checking the RTC_VALID
 register for correctness.
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Merge tag 'timers-urgent-2021-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Thomas Gleixner:
 "A fix for handling advertised, but non-existent 146818 RTCs correctly.

  With the recent UIP handling changes the time readout of non-existent
  RTCs hangs forever as the read returns always 0xFF which means the UIP
  bit is set.

  Sanity check the RTC before registering by checking the RTC_VALID
  register for correctness"

* tag 'timers-urgent-2021-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rtc: mc146818: Detect and handle broken RTCs
2021-01-31 11:40:57 -08:00
Linus Torvalds
f7ea44c717 A single fix for the single step reporting regression caused by getting the
condition wrong when moving SYSCALL_EMU away from TIF flags.
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Merge tag 'core-urgent-2021-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull single stepping fix from Thomas Gleixner:
 "A single fix for the single step reporting regression caused by
  getting the condition wrong when moving SYSCALL_EMU away from TIF
  flags"

[ There's apparently another problem too, fix pending ]

* tag 'core-urgent-2021-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  entry: Unbreak single step reporting behaviour
2021-01-31 11:39:32 -08:00
Linus Torvalds
b333a99e14 powerpc fixes for 5.11 #6
One fix for a bug in our soft interrupt masking, which could lead to interrupt
 replaying recursing, causing spurious interrupts.
 
 Thanks to:
   Nicholas Piggin.
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Merge tag 'powerpc-5.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:
 "One fix for a bug in our soft interrupt masking, which could lead to
  interrupt replaying recursing, causing spurious interrupts.

  Thanks to Nicholas Piggin"

* tag 'powerpc-5.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: prevent recursive replay_soft_interrupts causing superfluous interrupt
2021-01-31 11:37:43 -08:00