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We should always do a read of current value of XGMAC_VLAN_TAG instead of
directly overwriting the register value.
Fixes: 3cd1cfcba26e2 ("net: stmmac: Implement VLAN Hash Filtering in XGMAC")
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It should always do a read of current value of GMAC_VLAN_TAG instead of
directly overwriting the register value.
Fixes: c1be0022df0d ("net: stmmac: Add VLAN HASH filtering support in GMAC4+")
Signed-off-by: Tan, Tee Min <tee.min.tan@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The caller of XDP_SETUP_PROG has already incremented refcnt in
__bpf_prog_get(), so drivers should only increment refcnt by
num_queues - 1.
To fix the issue, update netvsc_xdp_set() to add the correct number
to refcnt.
Hold a refcnt in netvsc_xdp_set()’s other caller, netvsc_attach().
And, do the same in netvsc_vf_setxdp(). Otherwise, every time when VF is
removed and added from the host side, the refcnt will be decreased by one,
which may cause page fault when unloading xdp program.
Fixes: 351e1581395f ("hv_netvsc: Add XDP support")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The 7445 switch clocking profiles do not allow us to run the IMP port at
2Gb/sec in a way that it is reliable and consistent. Make sure that the
setting is only applied to the 7278 family.
Fixes: 8f1880cbe8d0 ("net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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b53_configure_vlan() is called by the bcm_sf2 driver upon setup and
indirectly through resume as well. During the initial setup, we are
guaranteed that dev->vlan_enabled is false, so there is no change in
behavior, however during suspend, we may have enabled VLANs before, so we
do want to restore that setting.
Fixes: dad8d7c6452b ("net: dsa: b53: Properly account for VLAN filtering")
Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It forgot to reduce the value of the variable retry in a while loop
in the ethqos_configure() function. It may cause an endless loop and
without timeout.
Fixes: a7c30e62d4b8 ("net: stmmac: Add driver for Qualcomm ethqos")
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Deprecate the generic TLS cap bit, use the new TX-specific
TLS cap bit instead.
Fixes: a12ff35e0fb7 ("net/mlx5: Introduce TLS TX offload hardware bits and structures")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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For a cyclic work queue, when not requesting a completion per WQE,
a single CQE might indicate the completion of several WQEs.
However, in case some WQE in the batch causes an error, then an error
completion is issued, breaking the batch, and pointing to the offending
WQE in the wqe_counter field.
Hence, WQE-specific error CQE handling (like printing, breaking, etc...)
should be performed only for the last WQE in batch.
Fixes: 130c7b46c93d ("net/mlx5e: TX, Dump WQs wqe descriptors on CQE with error events")
Fixes: fd9b4be8002c ("net/mlx5e: RX, Support multiple outstanding UMR posts")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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SA context is allocated at mlx5_fpga_ipsec_create_sa_ctx,
however the counterpart mlx5_fpga_ipsec_delete_sa_ctx function
nullifies sa_ctx pointer without freeing the memory allocated,
hence the memory leak.
Fix by free SA context when the SA is released.
Fixes: d6c4f0298cec ("net/mlx5: Refactor accel IPSec code")
Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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The function mlx5_fpga_esp_validate_xfrm_attrs is wrongly used
with negative negation as zero value indicates success but it
used as failure return value instead.
Fix by remove the unary not negation operator.
Fixes: 05564d0ae075 ("net/mlx5: Add flow-steering commands for FPGA IPSec implementation")
Signed-off-by: Raed Salem <raeds@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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free_match_list could be called when the flow table is already
locked. We need to pass this notation to tree_put_node.
It fixes the following lockdep warnning:
[ 1797.268537] ============================================
[ 1797.276837] WARNING: possible recursive locking detected
[ 1797.285101] 5.5.0-rc5+ #10 Not tainted
[ 1797.291641] --------------------------------------------
[ 1797.299917] handler10/9296 is trying to acquire lock:
[ 1797.307885] ffff889ad399a0a0 (&node->lock){++++}, at:
tree_put_node+0x1d5/0x210 [mlx5_core]
[ 1797.319694]
[ 1797.319694] but task is already holding lock:
[ 1797.330904] ffff889ad399a0a0 (&node->lock){++++}, at:
nested_down_write_ref_node.part.33+0x1a/0x60 [mlx5_core]
[ 1797.344707]
[ 1797.344707] other info that might help us debug this:
[ 1797.356952] Possible unsafe locking scenario:
[ 1797.356952]
[ 1797.368333] CPU0
[ 1797.373357] ----
[ 1797.378364] lock(&node->lock);
[ 1797.384222] lock(&node->lock);
[ 1797.390031]
[ 1797.390031] *** DEADLOCK ***
[ 1797.390031]
[ 1797.403003] May be due to missing lock nesting notation
[ 1797.403003]
[ 1797.414691] 3 locks held by handler10/9296:
[ 1797.421465] #0: ffff889cf2c5a110 (&block->cb_lock){++++}, at:
tc_setup_cb_add+0x70/0x250
[ 1797.432810] #1: ffff88a030081490 (&comp->sem){++++}, at:
mlx5_devcom_get_peer_data+0x4c/0xb0 [mlx5_core]
[ 1797.445829] #2: ffff889ad399a0a0 (&node->lock){++++}, at:
nested_down_write_ref_node.part.33+0x1a/0x60 [mlx5_core]
[ 1797.459913]
[ 1797.459913] stack backtrace:
[ 1797.469436] CPU: 1 PID: 9296 Comm: handler10 Kdump: loaded Not
tainted 5.5.0-rc5+ #10
[ 1797.480643] Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS
2.4.3 01/17/2017
[ 1797.491480] Call Trace:
[ 1797.496701] dump_stack+0x96/0xe0
[ 1797.502864] __lock_acquire.cold.63+0xf8/0x212
[ 1797.510301] ? lockdep_hardirqs_on+0x250/0x250
[ 1797.517701] ? mark_held_locks+0x55/0xa0
[ 1797.524547] ? quarantine_put+0xb7/0x160
[ 1797.531422] ? lockdep_hardirqs_on+0x17d/0x250
[ 1797.538913] lock_acquire+0xd6/0x1f0
[ 1797.545529] ? tree_put_node+0x1d5/0x210 [mlx5_core]
[ 1797.553701] down_write+0x94/0x140
[ 1797.560206] ? tree_put_node+0x1d5/0x210 [mlx5_core]
[ 1797.568464] ? down_write_killable_nested+0x170/0x170
[ 1797.576925] ? del_hw_flow_group+0xde/0x1f0 [mlx5_core]
[ 1797.585629] tree_put_node+0x1d5/0x210 [mlx5_core]
[ 1797.593891] ? free_match_list.part.25+0x147/0x170 [mlx5_core]
[ 1797.603389] free_match_list.part.25+0xe0/0x170 [mlx5_core]
[ 1797.612654] _mlx5_add_flow_rules+0x17e2/0x20b0 [mlx5_core]
[ 1797.621838] ? lock_acquire+0xd6/0x1f0
[ 1797.629028] ? esw_get_prio_table+0xb0/0x3e0 [mlx5_core]
[ 1797.637981] ? alloc_insert_flow_group+0x420/0x420 [mlx5_core]
[ 1797.647459] ? try_to_wake_up+0x4c7/0xc70
[ 1797.654881] ? lock_downgrade+0x350/0x350
[ 1797.662271] ? __mutex_unlock_slowpath+0xb1/0x3f0
[ 1797.670396] ? find_held_lock+0xac/0xd0
[ 1797.677540] ? mlx5_add_flow_rules+0xdc/0x360 [mlx5_core]
[ 1797.686467] mlx5_add_flow_rules+0xdc/0x360 [mlx5_core]
[ 1797.695134] ? _mlx5_add_flow_rules+0x20b0/0x20b0 [mlx5_core]
[ 1797.704270] ? irq_exit+0xa5/0x170
[ 1797.710764] ? retint_kernel+0x10/0x10
[ 1797.717698] ? mlx5_eswitch_set_rule_source_port.isra.9+0x122/0x230
[mlx5_core]
[ 1797.728708] mlx5_eswitch_add_offloaded_rule+0x465/0x6d0 [mlx5_core]
[ 1797.738713] ? mlx5_eswitch_get_prio_range+0x30/0x30 [mlx5_core]
[ 1797.748384] ? mlx5_fc_stats_work+0x670/0x670 [mlx5_core]
[ 1797.757400] mlx5e_tc_offload_fdb_rules.isra.27+0x24/0x90 [mlx5_core]
[ 1797.767665] mlx5e_tc_add_fdb_flow+0xaf8/0xd40 [mlx5_core]
[ 1797.776886] ? mlx5e_encap_put+0xd0/0xd0 [mlx5_core]
[ 1797.785562] ? mlx5e_alloc_flow.isra.43+0x18c/0x1c0 [mlx5_core]
[ 1797.795353] __mlx5e_add_fdb_flow+0x2e2/0x440 [mlx5_core]
[ 1797.804558] ? mlx5e_tc_update_neigh_used_value+0x8c0/0x8c0
[mlx5_core]
[ 1797.815093] ? wait_for_completion+0x260/0x260
[ 1797.823272] mlx5e_configure_flower+0xe94/0x1620 [mlx5_core]
[ 1797.832792] ? __mlx5e_add_fdb_flow+0x440/0x440 [mlx5_core]
[ 1797.842096] ? down_read+0x11a/0x2e0
[ 1797.849090] ? down_write+0x140/0x140
[ 1797.856142] ? mlx5e_rep_indr_setup_block_cb+0xc0/0xc0 [mlx5_core]
[ 1797.866027] tc_setup_cb_add+0x11a/0x250
[ 1797.873339] fl_hw_replace_filter+0x25e/0x320 [cls_flower]
[ 1797.882385] ? fl_hw_destroy_filter+0x1c0/0x1c0 [cls_flower]
[ 1797.891607] fl_change+0x1d54/0x1fb6 [cls_flower]
[ 1797.899772] ? __rhashtable_insert_fast.constprop.50+0x9f0/0x9f0
[cls_flower]
[ 1797.910728] ? lock_downgrade+0x350/0x350
[ 1797.918187] ? __radix_tree_lookup+0xa5/0x130
[ 1797.926046] ? fl_set_key+0x1590/0x1590 [cls_flower]
[ 1797.934611] ? __rhashtable_insert_fast.constprop.50+0x9f0/0x9f0
[cls_flower]
[ 1797.945673] tc_new_tfilter+0xcd1/0x1240
[ 1797.953138] ? tc_del_tfilter+0xb10/0xb10
[ 1797.960688] ? avc_has_perm_noaudit+0x92/0x320
[ 1797.968721] ? avc_has_perm_noaudit+0x1df/0x320
[ 1797.976816] ? avc_has_extended_perms+0x990/0x990
[ 1797.985090] ? mark_lock+0xaa/0x9e0
[ 1797.991988] ? match_held_lock+0x1b/0x240
[ 1797.999457] ? match_held_lock+0x1b/0x240
[ 1798.006859] ? find_held_lock+0xac/0xd0
[ 1798.014045] ? symbol_put_addr+0x40/0x40
[ 1798.021317] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1798.029460] ? tc_del_tfilter+0xb10/0xb10
[ 1798.036810] rtnetlink_rcv_msg+0x4d5/0x620
[ 1798.044236] ? rtnl_bridge_getlink+0x460/0x460
[ 1798.052034] ? lockdep_hardirqs_on+0x250/0x250
[ 1798.059837] ? match_held_lock+0x1b/0x240
[ 1798.067146] ? find_held_lock+0xac/0xd0
[ 1798.074246] netlink_rcv_skb+0xc6/0x1f0
[ 1798.081339] ? rtnl_bridge_getlink+0x460/0x460
[ 1798.089104] ? netlink_ack+0x440/0x440
[ 1798.096061] netlink_unicast+0x2d4/0x3b0
[ 1798.103189] ? netlink_attachskb+0x3f0/0x3f0
[ 1798.110724] ? _copy_from_iter_full+0xda/0x370
[ 1798.118415] netlink_sendmsg+0x3ba/0x6a0
[ 1798.125478] ? netlink_unicast+0x3b0/0x3b0
[ 1798.132705] ? netlink_unicast+0x3b0/0x3b0
[ 1798.139880] sock_sendmsg+0x94/0xa0
[ 1798.146332] ____sys_sendmsg+0x36c/0x3f0
[ 1798.153251] ? copy_msghdr_from_user+0x165/0x230
[ 1798.160941] ? kernel_sendmsg+0x30/0x30
[ 1798.167738] ___sys_sendmsg+0xeb/0x150
[ 1798.174411] ? sendmsg_copy_msghdr+0x30/0x30
[ 1798.181649] ? lock_downgrade+0x350/0x350
[ 1798.188559] ? rcu_read_lock_sched_held+0xd0/0xd0
[ 1798.196239] ? __fget+0x21d/0x320
[ 1798.202335] ? do_dup2+0x2a0/0x2a0
[ 1798.208499] ? lock_downgrade+0x350/0x350
[ 1798.215366] ? __fget_light+0xd6/0xf0
[ 1798.221808] ? syscall_trace_enter+0x369/0x5d0
[ 1798.229112] __sys_sendmsg+0xd3/0x160
[ 1798.235511] ? __sys_sendmsg_sock+0x60/0x60
[ 1798.242478] ? syscall_trace_enter+0x233/0x5d0
[ 1798.249721] ? syscall_slow_exit_work+0x280/0x280
[ 1798.257211] ? do_syscall_64+0x1e/0x2e0
[ 1798.263680] do_syscall_64+0x72/0x2e0
[ 1798.269950] entry_SYSCALL_64_after_hwframe+0x49/0xbe
Fixes: bd71b08ec2ee ("net/mlx5: Support multiple updates of steering rules in parallel")
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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After a number of suspend and resume cycles, it is possible for the RBUF
to be stuck in Wake-on-LAN mode, despite the MPD enable bit being
cleared which instructed the RBUF to exit that mode.
Avoid creating that problematic condition by clearing the RX_EN and
TX_EN bits in the UniMAC prior to disable the Magic Packet Detector
logic which is guaranteed to make the RBUF exit Wake-on-LAN mode.
Fixes: 83e82f4c706b ("net: systemport: add Wake-on-LAN support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It turned out that on low performance systems the original change can
cause lower tx performance. On a N3450-based mini-PC tx performance
in iperf3 was reduced from 950Mbps to ~900Mbps. Therefore effectively
revert the original change, just use pcie_set_readrq() now instead of
changing the PCIe capability register directly.
Fixes: 2df49d365498 ("r8169: remove fiddling with the PCIe max read request size")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move rx_dropped and rx_errors counters in mvneta_pcpu_stats in order to
avoid possible races updating statistics
Fixes: 562e2f467e71 ("net: mvneta: Improve the buffer allocation method for SWBM")
Fixes: dc35a10f68d3 ("net: mvneta: bm: add support for hardware buffer management")
Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Added debugfs entry to show the tls stats.
Signed-off-by: Devulapally Shiva Krishna <shiva@chelsio.com>
Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit cedeac9df4b8 ("qed: Add support for Timestamping the unicast
PTP packets.") handles the timestamping of L4 ptp packets only.
This patch adds driver changes to detect/timestamp both L2/L4 unicast
PTP packets.
Fixes: cedeac9df4b8 ("qed: Add support for Timestamping the unicast PTP packets.")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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GEM_MAX_TX_LEN currently resolves to 0x3FF8 for any IP version supporting
TSO with full 14bits of length field in payload descriptor. But an IP
errata causes false amba_error (bit 6 of ISR) when length in payload
descriptors is specified above 16387. The error occurs because the DMA
falsely concludes that there is not enough space in SRAM for incoming
payload. These errors were observed continuously under stress of large
packets using iperf on a version where SRAM was 16K for each queue. This
errata will be documented shortly and affects all versions since TSO
functionality was added. Hence limit the max length to 0x3FC0 (rounded).
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The IP TSO implementation does NOT require the length to be a
multiple of 8. That is only a requirement for UFO as per IP
documentation. Hence, exit macb_features_check function in the
beginning if the protocol is not UDP. Only when it is UDP,
proceed further to the alignment checks. Update comments to
reflect the same. Also remove dead code checking for protocol
TCP when calculating header length.
Fixes: 1629dd4f763c ("cadence: Add LSO support.")
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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syzbot managed to send an IPX packet through bond_alb_xmit()
and af_packet and triggered a use-after-free.
First, bond_alb_xmit() was using ipx_hdr() helper to reach
the IPX header, but ipx_hdr() was using the transport offset
instead of the network offset. In the particular syzbot
report transport offset was 0xFFFF
This patch removes ipx_hdr() since it was only (mis)used from bonding.
Then we need to make sure IPv4/IPv6/IPX headers are pulled
in skb->head before dereferencing anything.
BUG: KASAN: use-after-free in bond_alb_xmit+0x153a/0x1590 drivers/net/bonding/bond_alb.c:1452
Read of size 2 at addr ffff8801ce56dfff by task syz-executor.2/18108
(if (ipx_hdr(skb)->ipx_checksum != IPX_NO_CHECKSUM) ...)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
[<ffffffff8441fc42>] __dump_stack lib/dump_stack.c:17 [inline]
[<ffffffff8441fc42>] dump_stack+0x14d/0x20b lib/dump_stack.c:53
[<ffffffff81a7dec4>] print_address_description+0x6f/0x20b mm/kasan/report.c:282
[<ffffffff81a7e0ec>] kasan_report_error mm/kasan/report.c:380 [inline]
[<ffffffff81a7e0ec>] kasan_report mm/kasan/report.c:438 [inline]
[<ffffffff81a7e0ec>] kasan_report.cold+0x8c/0x2a0 mm/kasan/report.c:422
[<ffffffff81a7dc4f>] __asan_report_load_n_noabort+0xf/0x20 mm/kasan/report.c:469
[<ffffffff82c8c00a>] bond_alb_xmit+0x153a/0x1590 drivers/net/bonding/bond_alb.c:1452
[<ffffffff82c60c74>] __bond_start_xmit drivers/net/bonding/bond_main.c:4199 [inline]
[<ffffffff82c60c74>] bond_start_xmit+0x4f4/0x1570 drivers/net/bonding/bond_main.c:4224
[<ffffffff83baa558>] __netdev_start_xmit include/linux/netdevice.h:4525 [inline]
[<ffffffff83baa558>] netdev_start_xmit include/linux/netdevice.h:4539 [inline]
[<ffffffff83baa558>] xmit_one net/core/dev.c:3611 [inline]
[<ffffffff83baa558>] dev_hard_start_xmit+0x168/0x910 net/core/dev.c:3627
[<ffffffff83bacf35>] __dev_queue_xmit+0x1f55/0x33b0 net/core/dev.c:4238
[<ffffffff83bae3a8>] dev_queue_xmit+0x18/0x20 net/core/dev.c:4278
[<ffffffff84339189>] packet_snd net/packet/af_packet.c:3226 [inline]
[<ffffffff84339189>] packet_sendmsg+0x4919/0x70b0 net/packet/af_packet.c:3252
[<ffffffff83b1ac0c>] sock_sendmsg_nosec net/socket.c:673 [inline]
[<ffffffff83b1ac0c>] sock_sendmsg+0x12c/0x160 net/socket.c:684
[<ffffffff83b1f5a2>] __sys_sendto+0x262/0x380 net/socket.c:1996
[<ffffffff83b1f700>] SYSC_sendto net/socket.c:2008 [inline]
[<ffffffff83b1f700>] SyS_sendto+0x40/0x60 net/socket.c:2004
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The receive frame length calculation uses a wrong mask to calculate the
length of the received frames.
Per spec table 4-1 the length is contained in the FL (Frame Length)
field in bits 30:16.
This didn't show up as an issue so far since frames were limited to
1500 bytes which falls within the 11 bit window.
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Our static-static calculation returns a failure if the public key is of
low order. We check for this when peers are added, and don't allow them
to be added if they're low order, except in the case where we haven't
yet been given a private key. In that case, we would defer the removal
of the peer until we're given a private key, since at that point we're
doing new static-static calculations which incur failures we can act on.
This meant, however, that we wound up removing peers rather late in the
configuration flow.
Syzkaller points out that peer_remove calls flush_workqueue, which in
turn might then wait for sending a handshake initiation to complete.
Since handshake initiation needs the static identity lock, holding the
static identity lock while calling peer_remove can result in a rare
deadlock. We have precisely this case in this situation of late-stage
peer removal based on an invalid public key. We can't drop the lock when
removing, because then incoming handshakes might interact with a bogus
static-static calculation.
While the band-aid patch for this would involve breaking up the peer
removal into two steps like wg_peer_remove_all does, in order to solve
the locking issue, there's actually a much more elegant way of fixing
this:
If the static-static calculation succeeds with one private key, it
*must* succeed with all others, because all 32-byte strings map to valid
private keys, thanks to clamping. That means we can get rid of this
silly dance and locking headaches of removing peers late in the
configuration flow, and instead just reject them early on, regardless of
whether the device has yet been assigned a private key. For the case
where the device doesn't yet have a private key, we safely use zeros
just for the purposes of checking for low order points by way of
checking the output of the calculation.
The following PoC will trigger the deadlock:
ip link add wg0 type wireguard
ip addr add 10.0.0.1/24 dev wg0
ip link set wg0 up
ping -f 10.0.0.2 &
while true; do
wg set wg0 private-key /dev/null peer AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= allowed-ips 10.0.0.0/24 endpoint 10.0.0.3:1234
wg set wg0 private-key <(echo AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=)
done
[ 0.949105] ======================================================
[ 0.949550] WARNING: possible circular locking dependency detected
[ 0.950143] 5.5.0-debug+ #18 Not tainted
[ 0.950431] ------------------------------------------------------
[ 0.950959] wg/89 is trying to acquire lock:
[ 0.951252] ffff8880333e2128 ((wq_completion)wg-kex-wg0){+.+.}, at: flush_workqueue+0xe3/0x12f0
[ 0.951865]
[ 0.951865] but task is already holding lock:
[ 0.952280] ffff888032819bc0 (&wg->static_identity.lock){++++}, at: wg_set_device+0x95d/0xcc0
[ 0.953011]
[ 0.953011] which lock already depends on the new lock.
[ 0.953011]
[ 0.953651]
[ 0.953651] the existing dependency chain (in reverse order) is:
[ 0.954292]
[ 0.954292] -> #2 (&wg->static_identity.lock){++++}:
[ 0.954804] lock_acquire+0x127/0x350
[ 0.955133] down_read+0x83/0x410
[ 0.955428] wg_noise_handshake_create_initiation+0x97/0x700
[ 0.955885] wg_packet_send_handshake_initiation+0x13a/0x280
[ 0.956401] wg_packet_handshake_send_worker+0x10/0x20
[ 0.956841] process_one_work+0x806/0x1500
[ 0.957167] worker_thread+0x8c/0xcb0
[ 0.957549] kthread+0x2ee/0x3b0
[ 0.957792] ret_from_fork+0x24/0x30
[ 0.958234]
[ 0.958234] -> #1 ((work_completion)(&peer->transmit_handshake_work)){+.+.}:
[ 0.958808] lock_acquire+0x127/0x350
[ 0.959075] process_one_work+0x7ab/0x1500
[ 0.959369] worker_thread+0x8c/0xcb0
[ 0.959639] kthread+0x2ee/0x3b0
[ 0.959896] ret_from_fork+0x24/0x30
[ 0.960346]
[ 0.960346] -> #0 ((wq_completion)wg-kex-wg0){+.+.}:
[ 0.960945] check_prev_add+0x167/0x1e20
[ 0.961351] __lock_acquire+0x2012/0x3170
[ 0.961725] lock_acquire+0x127/0x350
[ 0.961990] flush_workqueue+0x106/0x12f0
[ 0.962280] peer_remove_after_dead+0x160/0x220
[ 0.962600] wg_set_device+0xa24/0xcc0
[ 0.962994] genl_rcv_msg+0x52f/0xe90
[ 0.963298] netlink_rcv_skb+0x111/0x320
[ 0.963618] genl_rcv+0x1f/0x30
[ 0.963853] netlink_unicast+0x3f6/0x610
[ 0.964245] netlink_sendmsg+0x700/0xb80
[ 0.964586] __sys_sendto+0x1dd/0x2c0
[ 0.964854] __x64_sys_sendto+0xd8/0x1b0
[ 0.965141] do_syscall_64+0x90/0xd9a
[ 0.965408] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 0.965769]
[ 0.965769] other info that might help us debug this:
[ 0.965769]
[ 0.966337] Chain exists of:
[ 0.966337] (wq_completion)wg-kex-wg0 --> (work_completion)(&peer->transmit_handshake_work) --> &wg->static_identity.lock
[ 0.966337]
[ 0.967417] Possible unsafe locking scenario:
[ 0.967417]
[ 0.967836] CPU0 CPU1
[ 0.968155] ---- ----
[ 0.968497] lock(&wg->static_identity.lock);
[ 0.968779] lock((work_completion)(&peer->transmit_handshake_work));
[ 0.969345] lock(&wg->static_identity.lock);
[ 0.969809] lock((wq_completion)wg-kex-wg0);
[ 0.970146]
[ 0.970146] *** DEADLOCK ***
[ 0.970146]
[ 0.970531] 5 locks held by wg/89:
[ 0.970908] #0: ffffffff827433c8 (cb_lock){++++}, at: genl_rcv+0x10/0x30
[ 0.971400] #1: ffffffff82743480 (genl_mutex){+.+.}, at: genl_rcv_msg+0x642/0xe90
[ 0.971924] #2: ffffffff827160c0 (rtnl_mutex){+.+.}, at: wg_set_device+0x9f/0xcc0
[ 0.972488] #3: ffff888032819de0 (&wg->device_update_lock){+.+.}, at: wg_set_device+0xb0/0xcc0
[ 0.973095] #4: ffff888032819bc0 (&wg->static_identity.lock){++++}, at: wg_set_device+0x95d/0xcc0
[ 0.973653]
[ 0.973653] stack backtrace:
[ 0.973932] CPU: 1 PID: 89 Comm: wg Not tainted 5.5.0-debug+ #18
[ 0.974476] Call Trace:
[ 0.974638] dump_stack+0x97/0xe0
[ 0.974869] check_noncircular+0x312/0x3e0
[ 0.975132] ? print_circular_bug+0x1f0/0x1f0
[ 0.975410] ? __kernel_text_address+0x9/0x30
[ 0.975727] ? unwind_get_return_address+0x51/0x90
[ 0.976024] check_prev_add+0x167/0x1e20
[ 0.976367] ? graph_lock+0x70/0x160
[ 0.976682] __lock_acquire+0x2012/0x3170
[ 0.976998] ? register_lock_class+0x1140/0x1140
[ 0.977323] lock_acquire+0x127/0x350
[ 0.977627] ? flush_workqueue+0xe3/0x12f0
[ 0.977890] flush_workqueue+0x106/0x12f0
[ 0.978147] ? flush_workqueue+0xe3/0x12f0
[ 0.978410] ? find_held_lock+0x2c/0x110
[ 0.978662] ? lock_downgrade+0x6e0/0x6e0
[ 0.978919] ? queue_rcu_work+0x60/0x60
[ 0.979166] ? netif_napi_del+0x151/0x3b0
[ 0.979501] ? peer_remove_after_dead+0x160/0x220
[ 0.979871] peer_remove_after_dead+0x160/0x220
[ 0.980232] wg_set_device+0xa24/0xcc0
[ 0.980516] ? deref_stack_reg+0x8e/0xc0
[ 0.980801] ? set_peer+0xe10/0xe10
[ 0.981040] ? __ww_mutex_check_waiters+0x150/0x150
[ 0.981430] ? __nla_validate_parse+0x163/0x270
[ 0.981719] ? genl_family_rcv_msg_attrs_parse+0x13f/0x310
[ 0.982078] genl_rcv_msg+0x52f/0xe90
[ 0.982348] ? genl_family_rcv_msg_attrs_parse+0x310/0x310
[ 0.982690] ? register_lock_class+0x1140/0x1140
[ 0.983049] netlink_rcv_skb+0x111/0x320
[ 0.983298] ? genl_family_rcv_msg_attrs_parse+0x310/0x310
[ 0.983645] ? netlink_ack+0x880/0x880
[ 0.983888] genl_rcv+0x1f/0x30
[ 0.984168] netlink_unicast+0x3f6/0x610
[ 0.984443] ? netlink_detachskb+0x60/0x60
[ 0.984729] ? find_held_lock+0x2c/0x110
[ 0.984976] netlink_sendmsg+0x700/0xb80
[ 0.985220] ? netlink_broadcast_filtered+0xa60/0xa60
[ 0.985533] __sys_sendto+0x1dd/0x2c0
[ 0.985763] ? __x64_sys_getpeername+0xb0/0xb0
[ 0.986039] ? sockfd_lookup_light+0x17/0x160
[ 0.986397] ? __sys_recvmsg+0x8c/0xf0
[ 0.986711] ? __sys_recvmsg_sock+0xd0/0xd0
[ 0.987018] __x64_sys_sendto+0xd8/0x1b0
[ 0.987283] ? lockdep_hardirqs_on+0x39b/0x5a0
[ 0.987666] do_syscall_64+0x90/0xd9a
[ 0.987903] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 0.988223] RIP: 0033:0x7fe77c12003e
[ 0.988508] Code: c3 8b 07 85 c0 75 24 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 4
[ 0.989666] RSP: 002b:00007fffada2ed58 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 0.990137] RAX: ffffffffffffffda RBX: 00007fe77c159d48 RCX: 00007fe77c12003e
[ 0.990583] RDX: 0000000000000040 RSI: 000055fd1d38e020 RDI: 0000000000000004
[ 0.991091] RBP: 000055fd1d38e020 R08: 000055fd1cb63358 R09: 000000000000000c
[ 0.991568] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000002c
[ 0.992014] R13: 0000000000000004 R14: 000055fd1d38e020 R15: 0000000000000001
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the unlikely case a new node could not be allocated, we need to
remove @newnode from @peer->allowedips_list before freeing it.
syzbot reported:
BUG: KASAN: use-after-free in __list_del_entry_valid+0xdc/0xf5 lib/list_debug.c:54
Read of size 8 at addr ffff88809881a538 by task syz-executor.4/30133
CPU: 0 PID: 30133 Comm: syz-executor.4 Not tainted 5.5.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
print_address_description.constprop.0.cold+0xd4/0x30b mm/kasan/report.c:374
__kasan_report.cold+0x1b/0x32 mm/kasan/report.c:506
kasan_report+0x12/0x20 mm/kasan/common.c:639
__asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:135
__list_del_entry_valid+0xdc/0xf5 lib/list_debug.c:54
__list_del_entry include/linux/list.h:132 [inline]
list_del include/linux/list.h:146 [inline]
root_remove_peer_lists+0x24f/0x4b0 drivers/net/wireguard/allowedips.c:65
wg_allowedips_free+0x232/0x390 drivers/net/wireguard/allowedips.c:300
wg_peer_remove_all+0xd5/0x620 drivers/net/wireguard/peer.c:187
wg_set_device+0xd01/0x1350 drivers/net/wireguard/netlink.c:542
genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
genl_rcv_msg+0x67d/0xea0 net/netlink/genetlink.c:734
netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
genl_rcv+0x29/0x40 net/netlink/genetlink.c:745
netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1328
netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:672
____sys_sendmsg+0x753/0x880 net/socket.c:2343
___sys_sendmsg+0x100/0x170 net/socket.c:2397
__sys_sendmsg+0x105/0x1d0 net/socket.c:2430
__do_sys_sendmsg net/socket.c:2439 [inline]
__se_sys_sendmsg net/socket.c:2437 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b399
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f99a9bcdc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f99a9bce6d4 RCX: 000000000045b399
RDX: 0000000000000000 RSI: 0000000020001340 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000000009ba R14: 00000000004cb2b8 R15: 0000000000000009
Allocated by task 30103:
save_stack+0x23/0x90 mm/kasan/common.c:72
set_track mm/kasan/common.c:80 [inline]
__kasan_kmalloc mm/kasan/common.c:513 [inline]
__kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:486
kasan_kmalloc+0x9/0x10 mm/kasan/common.c:527
kmem_cache_alloc_trace+0x158/0x790 mm/slab.c:3551
kmalloc include/linux/slab.h:556 [inline]
kzalloc include/linux/slab.h:670 [inline]
add+0x70a/0x1970 drivers/net/wireguard/allowedips.c:236
wg_allowedips_insert_v4+0xf6/0x160 drivers/net/wireguard/allowedips.c:320
set_allowedip drivers/net/wireguard/netlink.c:343 [inline]
set_peer+0xfb9/0x1150 drivers/net/wireguard/netlink.c:468
wg_set_device+0xbd4/0x1350 drivers/net/wireguard/netlink.c:591
genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
genl_rcv_msg+0x67d/0xea0 net/netlink/genetlink.c:734
netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
genl_rcv+0x29/0x40 net/netlink/genetlink.c:745
netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1328
netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:672
____sys_sendmsg+0x753/0x880 net/socket.c:2343
___sys_sendmsg+0x100/0x170 net/socket.c:2397
__sys_sendmsg+0x105/0x1d0 net/socket.c:2430
__do_sys_sendmsg net/socket.c:2439 [inline]
__se_sys_sendmsg net/socket.c:2437 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Freed by task 30103:
save_stack+0x23/0x90 mm/kasan/common.c:72
set_track mm/kasan/common.c:80 [inline]
kasan_set_free_info mm/kasan/common.c:335 [inline]
__kasan_slab_free+0x102/0x150 mm/kasan/common.c:474
kasan_slab_free+0xe/0x10 mm/kasan/common.c:483
__cache_free mm/slab.c:3426 [inline]
kfree+0x10a/0x2c0 mm/slab.c:3757
add+0x12d2/0x1970 drivers/net/wireguard/allowedips.c:266
wg_allowedips_insert_v4+0xf6/0x160 drivers/net/wireguard/allowedips.c:320
set_allowedip drivers/net/wireguard/netlink.c:343 [inline]
set_peer+0xfb9/0x1150 drivers/net/wireguard/netlink.c:468
wg_set_device+0xbd4/0x1350 drivers/net/wireguard/netlink.c:591
genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
genl_rcv_msg+0x67d/0xea0 net/netlink/genetlink.c:734
netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
genl_rcv+0x29/0x40 net/netlink/genetlink.c:745
netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1328
netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:672
____sys_sendmsg+0x753/0x880 net/socket.c:2343
___sys_sendmsg+0x100/0x170 net/socket.c:2397
__sys_sendmsg+0x105/0x1d0 net/socket.c:2430
__do_sys_sendmsg net/socket.c:2439 [inline]
__se_sys_sendmsg net/socket.c:2437 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
The buggy address belongs to the object at ffff88809881a500
which belongs to the cache kmalloc-64 of size 64
The buggy address is located 56 bytes inside of
64-byte region [ffff88809881a500, ffff88809881a540)
The buggy address belongs to the page:
page:ffffea0002620680 refcount:1 mapcount:0 mapping:ffff8880aa400380 index:0x0
raw: 00fffe0000000200 ffffea000250b748 ffffea000254bac8 ffff8880aa400380
raw: 0000000000000000 ffff88809881a000 0000000100000020 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88809881a400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff88809881a480: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
>ffff88809881a500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff88809881a580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff88809881a600: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: wireguard@lists.zx2c4.com
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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drivers/net/netdevsim/dev.c:937:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Fixes: 6556ff32f12d ("netdevsim: use IS_ERR instead of IS_ERR_OR_NULL for debugfs")
CC: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 0ce5ebd24d25 ("mfd: ioc3: Add driver for SGI IOC3 chip") moved
request_irq() from ioc3_open into probe function, but forgot to remove
free_irq() from ioc3_close.
Fixes: 0ce5ebd24d25 ("mfd: ioc3: Add driver for SGI IOC3 chip")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This is a merge error on my part - the driver was merged into mainline
by commit c5951e7c8ee5 ("Merge tag 'mips_5.6' of git://../mips/linux")
over a week ago, but nobody apparently noticed that it didn't actually
build due to still having a reference to the devm_ioremap_nocache()
function, removed a few days earlier through commit 6a1000bd2703 ("Merge
tag 'ioremap-5.6' of git://../ioremap").
Apparently this didn't get any build testing anywhere. Not perhaps all
that surprising: it's restricted to 64-bit MIPS only, and only with the
new SGI_MFD_IOC3 support enabled.
I only noticed because the ioremap conflicts in the ARM SoC driver
update made me check there weren't any others hiding, and I found this
one.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull ARM SoC late updates from Olof Johansson:
"This is some material that we picked up into our tree late, or that
had more complex dependencies on more than one topic branch that makes
sense to keep separately.
- TI support for secure accelerators and hwrng on OMAP4/5
- TI camera changes for dra7 and am437x and SGX improvement due to
better reset control support on am335x, am437x and dra7
- Davinci moves to proper clocksource on DM365, and regulator/audio
improvements for DM365 and DM644x eval boards"
* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (32 commits)
ARM: dts: omap4-droid4: Enable hdq for droid4 ds250x 1-wire battery nvmem
ARM: dts: motorola-cpcap-mapphone: Configure calibration interrupt
ARM: dts: Configure interconnect target module for am437x sgx
ARM: dts: Configure sgx for dra7
ARM: dts: Configure rstctrl reset for am335x SGX
ARM: dts: dra7: Add ti-sysc node for VPE
ARM: dts: dra7: add vpe clkctrl node
ARM: dts: am43x-epos-evm: Add VPFE and OV2659 entries
ARM: dts: am437x-sk-evm: Add VPFE and OV2659 entries
ARM: dts: am43xx: add support for clkout1 clock
arm: dts: dra76-evm: Add CAL and OV5640 nodes
arm: dtsi: dra76x: Add CAL dtsi node
arm: dts: dra72-evm-common: Add entries for the CSI2 cameras
ARM: dts: DRA72: Add CAL dtsi node
ARM: dts: dra7-l4: Add ti-sysc node for CAM
ARM: OMAP: DRA7xx: Make CAM clock domain SWSUP only
ARM: dts: dra7: add cam clkctrl node
ARM: OMAP2+: Drop legacy platform data for omap4 des
ARM: OMAP2+: Drop legacy platform data for omap4 sham
ARM: OMAP2+: Drop legacy platform data for omap4 aes
...
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git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into arm/late
DaVinci SoC updates for v5.6 include migrating DM365 SoC to use
drivers/clocksource based driver for timer. This leads to removal
of machine specific timer driver.
There are two patches adding missing fixed regulators for audio codecs
on DM365 and DM644x EVMs.
* tag 'davinci-for-v5.6/soc' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: dm644x-evm: Add Fixed regulators needed for tlv320aic33
ARM: davinci: dm365-evm: Add Fixed regulators needed for tlv320aic3101
ARM: davinci: remove legacy timer support
ARM: davinci: dm365: switch to using the clocksource driver
clocksource: davinci: only enable clockevents once tim34 is initialized
Link: https://lore.kernel.org/r/043eb5b2-a302-4de6-a3e8-8238e49483b1@ti.com/
Signed-off-by: Olof Johansson <olof@lixom.net>
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The DM365 platform has a strange quirk (only present when using ancient
u-boot - mainline u-boot v2013.01 and later works fine) where if we
enable the second half of the timer in periodic mode before we do its
initialization - the time won't start flowing and we can't boot.
When using more recent u-boot, we can enable the timer, then reinitialize
it and all works fine.
To work around this issue only enable clockevents once tim34 is
initialized i.e. move clockevents_config_and_register() below tim34
initialization.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/late
Late changes for omap secure accelerators for v5.6 merge window
A series of changes to configure secure accelerators for omap4 & 5
to finally get hardware random number generator working.
Apologies on a late pull request on these changes, but this pull
request could not be sent out earlier because of a dependency to
recent clock changes. This is based on earlier changes to drop omap
legacy platform data with Tero Kristo's for-5.6-ti-clk branch merged
in.
* tag 'omap-for-v5.6/ti-sysc-drop-pdata-crypto-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (98 commits)
ARM: OMAP2+: Drop legacy platform data for omap4 des
ARM: OMAP2+: Drop legacy platform data for omap4 sham
ARM: OMAP2+: Drop legacy platform data for omap4 aes
ARM: dts: Configure interconnect target module for omap4 des
ARM: dts: Configure interconnect target module for omap4 aes
ARM: dts: Configure interconnect target module for omap4 sham
ARM: dts: Configure omap5 rng to probe with ti-sysc
ARM: dts: Configure omap4 rng to probe with ti-sysc
ARM: dts: Add missing omap5 secure clocks
ARM: dts: Add missing omap4 secure clocks
clk: ti: clkctrl: Fix hidden dependency to node name
clk: ti: add clkctrl data dra7 sgx
clk: ti: omap5: Add missing AESS clock
clk: ti: dra7: fix parent for gmac_clkctrl
clk: ti: dra7: add vpe clkctrl data
clk: ti: dra7: add cam clkctrl data
dt-bindings: clock: Move ti-dra7-atl.h to dt-bindings/clock
dmaengine: ti: omap-dma: don't allow a null od->plat pointer to be dereferenced
ARM: OMAP2+: Drop legacy platform data for sdma
ARM: OMAP2+: Drop legacy init for sdma
...
Link: https://lore.kernel.org/r/pull-1579896427-50330@atomide.com-2
Signed-off-by: Olof Johansson <olof@lixom.net>
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omap-for-v5.6/ti-sysc-drop-pdata
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The secure clocks on omap5 are similar to what we already have for dra7
with dra7_l4sec_clkctrl_regs and documented in the omap5432 TRM in
"Table 3-1044. CORE_CM_CORE Registers Mapping Summary".
The secure clocks are part of the l4per clock manager. As the l4per
clock manager has now two clock domains as children, let's also update
the l4per clockdomain node name to follow the "clock" node naming with
a domain specific compatible property.
Compared to omap4, omap5 has more clocks working in hardare autogating
mode.
Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The secure clocks on omap4 are similar to what we already have for dra7
in dra7_l4sec_clkctrl_regs and documented in the omap4460 TRM "Table
3-1346 L4PER_CM2 Registers Mapping Summary".
The secure clocks are part of the l4_per clock manager. As the l4_per
clock manager has now two clock domains as children, let's also update
the l4_per clockdomain node name to follow the "clock" node naming with
a domain specific compatible property.
Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC-related driver updates from Olof Johansson:
"Various driver updates for platforms:
- Nvidia: Fuse support for Tegra194, continued memory controller
pieces for Tegra30
- NXP/FSL: Refactorings of QuickEngine drivers to support
ARM/ARM64/PPC
- NXP/FSL: i.MX8MP SoC driver pieces
- TI Keystone: ring accelerator driver
- Qualcomm: SCM driver cleanup/refactoring + support for new SoCs.
- Xilinx ZynqMP: feature checking interface for firmware. Mailbox
communication for power management
- Overall support patch set for cpuidle on more complex hierarchies
(PSCI-based)
and misc cleanups, refactorings of Marvell, TI, other platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (166 commits)
drivers: soc: xilinx: Use mailbox IPI callback
dt-bindings: power: reset: xilinx: Add bindings for ipi mailbox
drivers: soc: ti: knav_qmss_queue: Pass lockdep expression to RCU lists
MAINTAINERS: Add brcmstb PCIe controller entry
soc/tegra: fuse: Unmap registers once they are not needed anymore
soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
soc/tegra: fuse: Warn if straps are not ready
soc/tegra: fuse: Cache values of straps and Chip ID registers
memory: tegra30-emc: Correct error message for timed out auto calibration
memory: tegra30-emc: Firm up hardware programming sequence
memory: tegra30-emc: Firm up suspend/resume sequence
soc/tegra: regulators: Do nothing if voltage is unchanged
memory: tegra: Correct reset value of xusb_hostr
soc/tegra: fuse: Add APB DMA dependency for Tegra20
bus: tegra-aconnect: Remove PM_CLK dependency
dt-bindings: mediatek: add MT6765 power dt-bindings
soc: mediatek: cmdq: delete not used define
memory: tegra: Add support for the Tegra194 memory controller
memory: tegra: Only include support for enabled SoCs
memory: tegra: Support DVFS on Tegra186 and later
...
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arm/drivers
arm64: soc: ZynqMP SoC changes for v5.6
- Extend firmware interface for feature checking
- Use mailbox for communication with firmware for power management
* tag 'zynqmp-soc-for-v5.6' of https://github.com/Xilinx/linux-xlnx:
drivers: soc: xilinx: Use mailbox IPI callback
dt-bindings: power: reset: xilinx: Add bindings for ipi mailbox
drivers: firmware: xilinx: Add support for feature check
Link: https://lore.kernel.org/r/f6fb26f8-b00d-a3e8-bf7d-c7ff2a8483b1@monstr.eu
Signed-off-by: Olof Johansson <olof@lixom.net>
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Add support for init suspend callback through mailbox IPI callback.
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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Query for corresponding feature before calling EEMI API
from the driver.
Signed-off-by: Ravi Patel <ravi.patel@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/drivers
cmdq:
- clean ups of unused code and debuggability
- add cmdq_instruction to make the function call interface more readable
- add functions for polling and providing info for the user of cmdq
scpsys:
- add bindings for MT6765
* tag 'v5.5-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
dt-bindings: mediatek: add MT6765 power dt-bindings
soc: mediatek: cmdq: delete not used define
soc: mediatek: cmdq: add cmdq_dev_get_client_reg function
soc: mediatek: cmdq: add polling function
soc: mediatek: cmdq: define the instruction struct
soc: mediatek: cmdq: remove OR opertaion from err return
Link: https://lore.kernel.org/r/9b365e76-e346-f813-d750-d7cfd0d16e4e@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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Define CMDQ_EOC_CMD was actually never used. Delete it.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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inst->handles is traversed using list_for_each_entry_rcu
outside an RCU read-side critical section but under the protection
of knav_dev_lock.
Hence, add corresponding lockdep expression to silence false-positive
lockdep warnings, and harden RCU lists.
Add macro for the corresponding lockdep expression.
Link: https://lore.kernel.org/r/20200118042433.4968-1-frextrite@gmail.com
Signed-off-by: Amol Grover <frextrite@gmail.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into arm/drivers
SOC: TI Keystone Ring Accelerator driver
The Ring Accelerator (RINGACC or RA) provides hardware acceleration to
enable straightforward passing of work between a producer and a consumer.
There is one RINGACC module per NAVSS on TI AM65x SoCs.
* tag 'drivers_soc_for_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
soc: ti: k3: add navss ringacc driver
bindings: soc: ti: add documentation for k3 ringacc
Link: https://lore.kernel.org/r/1579205259-4845-1-git-send-email-santosh.shilimkar@oracle.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/drivers
ti-sysc driver changes for omaps for v5.6 merge window
Few changes to implement quirk handling for cases where we need to block
clockdomain autoidle, drop old MMU specific quirks, and simplify the
return code for sysc_init_resets().
* tag 'omap-for-v5.6/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
bus: ti-sysc: Use PTR_ERR_OR_ZERO() to simplify code
bus: ti-sysc: Drop MMU quirks
bus: ti-sysc: Implement quirk handling for CLKDM_NOAUTO
Link: https://lore.kernel.org/r/pull-1579200367-372444@atomide.com-3
Signed-off-by: Olof Johansson <olof@lixom.net>
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Fixes coccicheck warning:
drivers/bus/ti-sysc.c:506:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The OMAP IOMMU driver no longer uses the pm_runtime_irq_safe() API
after commit 1432ebbd6003 ("iommu/omap: remove pm_runtime_irq_safe
flag for OMAP IOMMUs"), so the SYSC_QUIRK_LEGACY_IDLE quirk is no
longer needed for MMU devices. Drop the same.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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For dra7 dcan and dwc3 instances we need to block clockdomain autoidle.
Let's do this with CLKDM_NOAUTO quirk flag and enable it for dcan and
dwc3.
Cc: Keerthy <j-keerthy@ti.com>
Cc: Roger Quadros <rogerq@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers
Qualcomm driver updates for v5.6
* SCM major refactoring and cleanup
* Properly flag active only power domains as active only
* Add SC7180 and SM8150 RPMH power domains
* Return EPROBE_DEFER from QMI if packet family is not yet available
* tag 'qcom-drivers-for-5.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (27 commits)
firmware: qcom_scm: Dynamically support SMCCC and legacy conventions
firmware: qcom_scm: Remove thin wrappers
firmware: qcom_scm: Order functions, definitions by service/command
firmware: qcom_scm-32: Add device argument to atomic calls
firmware: qcom_scm-32: Create common legacy atomic call
firmware: qcom_scm-32: Move SMCCC register filling to qcom_scm_call
firmware: qcom_scm-32: Use qcom_scm_desc in non-atomic calls
firmware: qcom_scm-32: Add funcnum IDs
firmware: qcom_scm-32: Use SMC arch wrappers
firmware: qcom_scm-64: Improve SMC convention detection
firmware: qcom_scm-64: Move SMC register filling to qcom_scm_call_smccc
firmware: qcom_scm-64: Add SCM results struct
firmware: qcom_scm-64: Move svc/cmd/owner into qcom_scm_desc
firmware: qcom_scm-64: Make SMC macros less magical
firmware: qcom_scm: Remove unused qcom_scm_get_version
firmware: qcom_scm: Apply consistent naming scheme to command IDs
firmware: qcom_scm: Rename macros and structures
soc: qcom: rpmhpd: Set 'active_only' for active only power domains
firmware: scm: Add stubs for OCMEM and restore_sec_cfg_available
dt-bindings: power: rpmpd: Convert rpmpd bindings to yaml
...
Link: https://lore.kernel.org/r/20200113204405.GD3325@yoga
Signed-off-by: Olof Johansson <olof@lixom.net>
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Dynamically support SMCCCC and legacy conventions by detecting which
convention to use at runtime. qcom_scm_call_atomic and qcom_scm_call can
then be moved in qcom_scm.c and use underlying convention backend as
appropriate. Thus, rename qcom_scm-64,-32 to reflect that they are
backends for -smc and -legacy, respectively.
Also add support for making SCM calls earlier than when SCM driver
probes to support use cases such as qcom_scm_set_cold_boot_addr. Support
is added by lazily initializing the convention and guarding the query
with a spin lock. The limitation of these early SCM calls is that they
cannot use DMA, as in the case of >4 arguments for SMC convention and
any non-atomic call for legacy convention.
Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-18-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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qcom_scm-32 and qcom_scm-64 implementations are nearly identical, so
make qcom_scm_call and qcom_scm_call_atomic unique to each and the SCM
descriptor creation common to each. There are the following catches:
- __qcom_scm_is_call_available is still in each -32,-64 implementation
as the argument is unique to each convention
- For some functions, only one implementation was provided in -32 or
-64. The actual implementation was moved into qcom_scm.c
- io_writel and io_readl in -64 were non-atomic calls and in -32 they
were. Atomic is the better option, so use it.
Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-17-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Definitions throughout qcom_scm are loosely grouped and loosely ordered.
Sort all the functions/definitions by service ID/command ID to improve
sanity when needing to add new functionality to this driver.
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-16-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add unused "device" parameter to reduce merge friction between SMCCC and
legacy based conventions in an upcoming patch.
Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-15-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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