Pavel Belous [Wed, 22 Mar 2017 23:20:39 +0000 (02:20 +0300)]
net:ethernet:aquantia: Fix for RX checksum offload.
Since AQC-100/107/108 chips supports hardware checksums for RX we should indicate this
via NETIF_F_RXCSUM flag.
v1->v2: 'Signed-off-by' tag added.
Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lendacky, Thomas [Wed, 22 Mar 2017 22:25:27 +0000 (17:25 -0500)]
amd-xgbe: Fix the ECC-related bit position definitions
The ECC bit positions that describe whether the ECC interrupt is for
Tx, Rx or descriptor memory and whether the it is a single correctable
or double detected error were defined in incorrectly (reversed order).
Fix the bit position definitions for these settings so that the proper
ECC handling is performed.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Wed, 22 Mar 2017 09:10:02 +0000 (12:10 +0300)]
sfc: cleanup a condition in efx_udp_tunnel_del()
Presumably if there is an "add" function, there is also a "del"
function. But it causes a static checker warning because it looks like
a common cut and paste bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Mon, 20 Mar 2017 22:31:10 +0000 (15:31 -0700)]
Bluetooth: btqcomsmd: fix compile-test dependency
compile-testing fails when QCOM_SMD is a loadable module:
drivers/bluetooth/built-in.o: In function `btqcomsmd_send':
btqca.c:(.text+0xa8): undefined reference to `qcom_smd_send'
drivers/bluetooth/built-in.o: In function `btqcomsmd_probe':
btqca.c:(.text+0x3ec): undefined reference to `qcom_wcnss_open_channel'
btqca.c:(.text+0x46c): undefined reference to `qcom_smd_set_drvdata'
This clarifies the dependency to allow compile-testing only when
SMD is completely disabled, otherwise the dependency on QCOM_SMD
will make sure we can link against it.
Fixes:
e27ee2b16bad ("Bluetooth: btqcomsmd: Allow driver to build if COMPILE_TEST is enabled")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[bjorn: Restructure and clarify dependency to QCOM_WCNSS_CTRL]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 22 Mar 2017 15:57:15 +0000 (08:57 -0700)]
inet: frag: release spinlock before calling icmp_send()
Dmitry reported a lockdep splat [1] (false positive) that we can fix
by releasing the spinlock before calling icmp_send() from ip_expire()
This is a false positive because sending an ICMP message can not
possibly re-enter the IP frag engine.
[1]
[ INFO: possible circular locking dependency detected ]
4.10.0+ #29 Not tainted
-------------------------------------------------------
modprobe/12392 is trying to acquire lock:
(_xmit_ETHER#2){+.-...}, at: [<
ffffffff837a8182>] spin_lock
include/linux/spinlock.h:299 [inline]
(_xmit_ETHER#2){+.-...}, at: [<
ffffffff837a8182>] __netif_tx_lock
include/linux/netdevice.h:3486 [inline]
(_xmit_ETHER#2){+.-...}, at: [<
ffffffff837a8182>]
sch_direct_xmit+0x282/0x6d0 net/sched/sch_generic.c:180
but task is already holding lock:
(&(&q->lock)->rlock){+.-...}, at: [<
ffffffff8389a4d1>] spin_lock
include/linux/spinlock.h:299 [inline]
(&(&q->lock)->rlock){+.-...}, at: [<
ffffffff8389a4d1>]
ip_expire+0x51/0x6c0 net/ipv4/ip_fragment.c:201
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&(&q->lock)->rlock){+.-...}:
validate_chain kernel/locking/lockdep.c:2267 [inline]
__lock_acquire+0x2149/0x3430 kernel/locking/lockdep.c:3340
lock_acquire+0x2a1/0x630 kernel/locking/lockdep.c:3755
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x33/0x50 kernel/locking/spinlock.c:151
spin_lock include/linux/spinlock.h:299 [inline]
ip_defrag+0x3a2/0x4130 net/ipv4/ip_fragment.c:669
ip_check_defrag+0x4e3/0x8b0 net/ipv4/ip_fragment.c:713
packet_rcv_fanout+0x282/0x800 net/packet/af_packet.c:1459
deliver_skb net/core/dev.c:1834 [inline]
dev_queue_xmit_nit+0x294/0xa90 net/core/dev.c:1890
xmit_one net/core/dev.c:2903 [inline]
dev_hard_start_xmit+0x16b/0xab0 net/core/dev.c:2923
sch_direct_xmit+0x31f/0x6d0 net/sched/sch_generic.c:182
__dev_xmit_skb net/core/dev.c:3092 [inline]
__dev_queue_xmit+0x13e5/0x1e60 net/core/dev.c:3358
dev_queue_xmit+0x17/0x20 net/core/dev.c:3423
neigh_resolve_output+0x6b9/0xb10 net/core/neighbour.c:1308
neigh_output include/net/neighbour.h:478 [inline]
ip_finish_output2+0x8b8/0x15a0 net/ipv4/ip_output.c:228
ip_do_fragment+0x1d93/0x2720 net/ipv4/ip_output.c:672
ip_fragment.constprop.54+0x145/0x200 net/ipv4/ip_output.c:545
ip_finish_output+0x82d/0xe10 net/ipv4/ip_output.c:314
NF_HOOK_COND include/linux/netfilter.h:246 [inline]
ip_output+0x1f0/0x7a0 net/ipv4/ip_output.c:404
dst_output include/net/dst.h:486 [inline]
ip_local_out+0x95/0x170 net/ipv4/ip_output.c:124
ip_send_skb+0x3c/0xc0 net/ipv4/ip_output.c:1492
ip_push_pending_frames+0x64/0x80 net/ipv4/ip_output.c:1512
raw_sendmsg+0x26de/0x3a00 net/ipv4/raw.c:655
inet_sendmsg+0x164/0x5b0 net/ipv4/af_inet.c:761
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
___sys_sendmsg+0x4a3/0x9f0 net/socket.c:1985
__sys_sendmmsg+0x25c/0x750 net/socket.c:2075
SYSC_sendmmsg net/socket.c:2106 [inline]
SyS_sendmmsg+0x35/0x60 net/socket.c:2101
do_syscall_64+0x2e8/0x930 arch/x86/entry/common.c:281
return_from_SYSCALL_64+0x0/0x7a
-> #0 (_xmit_ETHER#2){+.-...}:
check_prev_add kernel/locking/lockdep.c:1830 [inline]
check_prevs_add+0xa8f/0x19f0 kernel/locking/lockdep.c:1940
validate_chain kernel/locking/lockdep.c:2267 [inline]
__lock_acquire+0x2149/0x3430 kernel/locking/lockdep.c:3340
lock_acquire+0x2a1/0x630 kernel/locking/lockdep.c:3755
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x33/0x50 kernel/locking/spinlock.c:151
spin_lock include/linux/spinlock.h:299 [inline]
__netif_tx_lock include/linux/netdevice.h:3486 [inline]
sch_direct_xmit+0x282/0x6d0 net/sched/sch_generic.c:180
__dev_xmit_skb net/core/dev.c:3092 [inline]
__dev_queue_xmit+0x13e5/0x1e60 net/core/dev.c:3358
dev_queue_xmit+0x17/0x20 net/core/dev.c:3423
neigh_hh_output include/net/neighbour.h:468 [inline]
neigh_output include/net/neighbour.h:476 [inline]
ip_finish_output2+0xf6c/0x15a0 net/ipv4/ip_output.c:228
ip_finish_output+0xa29/0xe10 net/ipv4/ip_output.c:316
NF_HOOK_COND include/linux/netfilter.h:246 [inline]
ip_output+0x1f0/0x7a0 net/ipv4/ip_output.c:404
dst_output include/net/dst.h:486 [inline]
ip_local_out+0x95/0x170 net/ipv4/ip_output.c:124
ip_send_skb+0x3c/0xc0 net/ipv4/ip_output.c:1492
ip_push_pending_frames+0x64/0x80 net/ipv4/ip_output.c:1512
icmp_push_reply+0x372/0x4d0 net/ipv4/icmp.c:394
icmp_send+0x156c/0x1c80 net/ipv4/icmp.c:754
ip_expire+0x40e/0x6c0 net/ipv4/ip_fragment.c:239
call_timer_fn+0x241/0x820 kernel/time/timer.c:1268
expire_timers kernel/time/timer.c:1307 [inline]
__run_timers+0x960/0xcf0 kernel/time/timer.c:1601
run_timer_softirq+0x21/0x80 kernel/time/timer.c:1614
__do_softirq+0x31f/0xbe7 kernel/softirq.c:284
invoke_softirq kernel/softirq.c:364 [inline]
irq_exit+0x1cc/0x200 kernel/softirq.c:405
exiting_irq arch/x86/include/asm/apic.h:657 [inline]
smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:962
apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:707
__read_once_size include/linux/compiler.h:254 [inline]
atomic_read arch/x86/include/asm/atomic.h:26 [inline]
rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:350 [inline]
__rcu_is_watching kernel/rcu/tree.c:1133 [inline]
rcu_is_watching+0x83/0x110 kernel/rcu/tree.c:1147
rcu_read_lock_held+0x87/0xc0 kernel/rcu/update.c:293
radix_tree_deref_slot include/linux/radix-tree.h:238 [inline]
filemap_map_pages+0x6d4/0x1570 mm/filemap.c:2335
do_fault_around mm/memory.c:3231 [inline]
do_read_fault mm/memory.c:3265 [inline]
do_fault+0xbd5/0x2080 mm/memory.c:3370
handle_pte_fault mm/memory.c:3600 [inline]
__handle_mm_fault+0x1062/0x2cb0 mm/memory.c:3714
handle_mm_fault+0x1e2/0x480 mm/memory.c:3751
__do_page_fault+0x4f6/0xb60 arch/x86/mm/fault.c:1397
do_page_fault+0x54/0x70 arch/x86/mm/fault.c:1460
page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1011
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&(&q->lock)->rlock);
lock(_xmit_ETHER#2);
lock(&(&q->lock)->rlock);
lock(_xmit_ETHER#2);
*** DEADLOCK ***
10 locks held by modprobe/12392:
#0: (&mm->mmap_sem){++++++}, at: [<
ffffffff81329758>]
__do_page_fault+0x2b8/0xb60 arch/x86/mm/fault.c:1336
#1: (rcu_read_lock){......}, at: [<
ffffffff8188cab6>]
filemap_map_pages+0x1e6/0x1570 mm/filemap.c:2324
#2: (&(ptlock_ptr(page))->rlock#2){+.+...}, at: [<
ffffffff81984a78>]
spin_lock include/linux/spinlock.h:299 [inline]
#2: (&(ptlock_ptr(page))->rlock#2){+.+...}, at: [<
ffffffff81984a78>]
pte_alloc_one_map mm/memory.c:2944 [inline]
#2: (&(ptlock_ptr(page))->rlock#2){+.+...}, at: [<
ffffffff81984a78>]
alloc_set_pte+0x13b8/0x1b90 mm/memory.c:3072
#3: (((&q->timer))){+.-...}, at: [<
ffffffff81627e72>]
lockdep_copy_map include/linux/lockdep.h:175 [inline]
#3: (((&q->timer))){+.-...}, at: [<
ffffffff81627e72>]
call_timer_fn+0x1c2/0x820 kernel/time/timer.c:1258
#4: (&(&q->lock)->rlock){+.-...}, at: [<
ffffffff8389a4d1>] spin_lock
include/linux/spinlock.h:299 [inline]
#4: (&(&q->lock)->rlock){+.-...}, at: [<
ffffffff8389a4d1>]
ip_expire+0x51/0x6c0 net/ipv4/ip_fragment.c:201
#5: (rcu_read_lock){......}, at: [<
ffffffff8389a633>]
ip_expire+0x1b3/0x6c0 net/ipv4/ip_fragment.c:216
#6: (slock-AF_INET){+.-...}, at: [<
ffffffff839b3313>] spin_trylock
include/linux/spinlock.h:309 [inline]
#6: (slock-AF_INET){+.-...}, at: [<
ffffffff839b3313>] icmp_xmit_lock
net/ipv4/icmp.c:219 [inline]
#6: (slock-AF_INET){+.-...}, at: [<
ffffffff839b3313>]
icmp_send+0x803/0x1c80 net/ipv4/icmp.c:681
#7: (rcu_read_lock_bh){......}, at: [<
ffffffff838ab9a1>]
ip_finish_output2+0x2c1/0x15a0 net/ipv4/ip_output.c:198
#8: (rcu_read_lock_bh){......}, at: [<
ffffffff836d1dee>]
__dev_queue_xmit+0x23e/0x1e60 net/core/dev.c:3324
#9: (dev->qdisc_running_key ?: &qdisc_running_key){+.....}, at:
[<
ffffffff836d3a27>] dev_queue_xmit+0x17/0x20 net/core/dev.c:3423
stack backtrace:
CPU: 0 PID: 12392 Comm: modprobe Not tainted 4.10.0+ #29
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0x2ee/0x3ef lib/dump_stack.c:52
print_circular_bug+0x307/0x3b0 kernel/locking/lockdep.c:1204
check_prev_add kernel/locking/lockdep.c:1830 [inline]
check_prevs_add+0xa8f/0x19f0 kernel/locking/lockdep.c:1940
validate_chain kernel/locking/lockdep.c:2267 [inline]
__lock_acquire+0x2149/0x3430 kernel/locking/lockdep.c:3340
lock_acquire+0x2a1/0x630 kernel/locking/lockdep.c:3755
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x33/0x50 kernel/locking/spinlock.c:151
spin_lock include/linux/spinlock.h:299 [inline]
__netif_tx_lock include/linux/netdevice.h:3486 [inline]
sch_direct_xmit+0x282/0x6d0 net/sched/sch_generic.c:180
__dev_xmit_skb net/core/dev.c:3092 [inline]
__dev_queue_xmit+0x13e5/0x1e60 net/core/dev.c:3358
dev_queue_xmit+0x17/0x20 net/core/dev.c:3423
neigh_hh_output include/net/neighbour.h:468 [inline]
neigh_output include/net/neighbour.h:476 [inline]
ip_finish_output2+0xf6c/0x15a0 net/ipv4/ip_output.c:228
ip_finish_output+0xa29/0xe10 net/ipv4/ip_output.c:316
NF_HOOK_COND include/linux/netfilter.h:246 [inline]
ip_output+0x1f0/0x7a0 net/ipv4/ip_output.c:404
dst_output include/net/dst.h:486 [inline]
ip_local_out+0x95/0x170 net/ipv4/ip_output.c:124
ip_send_skb+0x3c/0xc0 net/ipv4/ip_output.c:1492
ip_push_pending_frames+0x64/0x80 net/ipv4/ip_output.c:1512
icmp_push_reply+0x372/0x4d0 net/ipv4/icmp.c:394
icmp_send+0x156c/0x1c80 net/ipv4/icmp.c:754
ip_expire+0x40e/0x6c0 net/ipv4/ip_fragment.c:239
call_timer_fn+0x241/0x820 kernel/time/timer.c:1268
expire_timers kernel/time/timer.c:1307 [inline]
__run_timers+0x960/0xcf0 kernel/time/timer.c:1601
run_timer_softirq+0x21/0x80 kernel/time/timer.c:1614
__do_softirq+0x31f/0xbe7 kernel/softirq.c:284
invoke_softirq kernel/softirq.c:364 [inline]
irq_exit+0x1cc/0x200 kernel/softirq.c:405
exiting_irq arch/x86/include/asm/apic.h:657 [inline]
smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:962
apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:707
RIP: 0010:__read_once_size include/linux/compiler.h:254 [inline]
RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:350 [inline]
RIP: 0010:__rcu_is_watching kernel/rcu/tree.c:1133 [inline]
RIP: 0010:rcu_is_watching+0x83/0x110 kernel/rcu/tree.c:1147
RSP: 0000:
ffff8801c391f120 EFLAGS:
00000a03 ORIG_RAX:
ffffffffffffff10
RAX:
dffffc0000000000 RBX:
ffff8801c391f148 RCX:
0000000000000000
RDX:
0000000000000000 RSI:
000055edd4374000 RDI:
ffff8801dbe1ae0c
RBP:
ffff8801c391f1a0 R08:
0000000000000002 R09:
0000000000000000
R10:
dffffc0000000000 R11:
0000000000000002 R12:
1ffff10038723e25
R13:
ffff8801dbe1ae00 R14:
ffff8801c391f680 R15:
dffffc0000000000
</IRQ>
rcu_read_lock_held+0x87/0xc0 kernel/rcu/update.c:293
radix_tree_deref_slot include/linux/radix-tree.h:238 [inline]
filemap_map_pages+0x6d4/0x1570 mm/filemap.c:2335
do_fault_around mm/memory.c:3231 [inline]
do_read_fault mm/memory.c:3265 [inline]
do_fault+0xbd5/0x2080 mm/memory.c:3370
handle_pte_fault mm/memory.c:3600 [inline]
__handle_mm_fault+0x1062/0x2cb0 mm/memory.c:3714
handle_mm_fault+0x1e2/0x480 mm/memory.c:3751
__do_page_fault+0x4f6/0xb60 arch/x86/mm/fault.c:1397
do_page_fault+0x54/0x70 arch/x86/mm/fault.c:1460
page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1011
RIP: 0033:0x7f83172f2786
RSP: 002b:
00007fffe859ae80 EFLAGS:
00010293
RAX:
000055edd4373040 RBX:
00007f83175111c8 RCX:
000055edd4373238
RDX:
0000000000000000 RSI:
0000000000000000 RDI:
00007f8317510970
RBP:
00007fffe859afd0 R08:
0000000000000009 R09:
0000000000000000
R10:
0000000000000064 R11:
0000000000000000 R12:
000055edd4373040
R13:
0000000000000000 R14:
00007fffe859afe8 R15:
0000000000000000
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 22 Mar 2017 15:10:21 +0000 (08:10 -0700)]
tcp: initialize icsk_ack.lrcvtime at session start time
icsk_ack.lrcvtime has a 0 value at socket creation time.
tcpi_last_data_recv can have bogus value if no payload is ever received.
This patch initializes icsk_ack.lrcvtime for active sessions
in tcp_finish_connect(), and for passive sessions in
tcp_create_openreq_child()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stanislaw Gruszka [Wed, 22 Mar 2017 15:08:33 +0000 (16:08 +0100)]
genetlink: fix counting regression on ctrl_dumpfamily()
Commit
2ae0f17df1cd ("genetlink: use idr to track families") replaced
if (++n < fams_to_skip)
continue;
into:
if (n++ < fams_to_skip)
continue;
This subtle change cause that on retry ctrl_dumpfamily() call we omit
one family that failed to do ctrl_fill_info() on previous call, because
cb->args[0] = n number counts also family that failed to do
ctrl_fill_info().
Patch fixes the problem and avoid confusion in the future just decrease
n counter when ctrl_fill_info() fail.
User visible problem caused by this bug is failure to get access to
some genetlink family i.e. nl80211. However problem is reproducible
only if number of registered genetlink families is big enough to
cause second call of ctrl_dumpfamily().
Cc: Xose Vazquez Perez <xose.vazquez@gmail.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Johannes Berg <johannes@sipsolutions.net>
Fixes:
2ae0f17df1cd ("genetlink: use idr to track families")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Wed, 22 Mar 2017 12:08:08 +0000 (13:08 +0100)]
socket, bpf: fix sk_filter use after free in sk_clone_lock
In sk_clone_lock(), we create a new socket and inherit most of the
parent's members via sock_copy() which memcpy()'s various sections.
Now, in case the parent socket had a BPF socket filter attached,
then newsk->sk_filter points to the same instance as the original
sk->sk_filter.
sk_filter_charge() is then called on the newsk->sk_filter to take a
reference and should that fail due to hitting max optmem, we bail
out and release the newsk instance.
The issue is that commit
278571baca2a ("net: filter: simplify socket
charging") wrongly combined the dismantle path with the failure path
of xfrm_sk_clone_policy(). This means, even when charging failed, we
call sk_free_unlock_clone() on the newsk, which then still points to
the same sk_filter as the original sk.
Thus, sk_free_unlock_clone() calls into __sk_destruct() eventually
where it tests for present sk_filter and calls sk_filter_uncharge()
on it, which potentially lets sk_omem_alloc wrap around and releases
the eBPF prog and sk_filter structure from the (still intact) parent.
Fix it by making sure that when sk_filter_charge() failed, we reset
newsk->sk_filter back to NULL before passing to sk_free_unlock_clone(),
so that we don't mess with the parents sk_filter.
Only if xfrm_sk_clone_policy() fails, we did reach the point where
either the parent's filter was NULL and as a result newsk's as well
or where we previously had a successful sk_filter_charge(), thus for
that case, we do need sk_filter_uncharge() to release the prior taken
reference on sk_filter.
Fixes:
278571baca2a ("net: filter: simplify socket charging")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 22 Mar 2017 02:22:28 +0000 (19:22 -0700)]
ipv4: provide stronger user input validation in nl_fib_input()
Alexander reported a KMSAN splat caused by reads of uninitialized
field (tb_id_in) from user provided struct fib_result_nl
It turns out nl_fib_input() sanity tests on user input is a bit
wrong :
User can pretend nlh->nlmsg_len is big enough, but provide
at sendmsg() time a too small buffer.
Reported-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov [Wed, 22 Mar 2017 02:05:04 +0000 (19:05 -0700)]
bpf: fix hashmap extra_elems logic
In both kmalloc and prealloc mode the bpf_map_update_elem() is using
per-cpu extra_elems to do atomic update when the map is full.
There are two issues with it. The logic can be misused, since it allows
max_entries+num_cpus elements to be present in the map. And alloc_extra_elems()
at map creation time can fail percpu alloc for large map values with a warn:
WARNING: CPU: 3 PID: 2752 at ../mm/percpu.c:892 pcpu_alloc+0x119/0xa60
illegal size (32824) or align (8) for percpu allocation
The fixes for both of these issues are different for kmalloc and prealloc modes.
For prealloc mode allocate extra num_possible_cpus elements and store
their pointers into extra_elems array instead of actual elements.
Hence we can use these hidden(spare) elements not only when the map is full
but during bpf_map_update_elem() that replaces existing element too.
That also improves performance, since pcpu_freelist_pop/push is avoided.
Unfortunately this approach cannot be used for kmalloc mode which needs
to kfree elements after rcu grace period. Therefore switch it back to normal
kmalloc even when full and old element exists like it was prior to
commit
6c9059817432 ("bpf: pre-allocate hash map elements").
Add tests to check for over max_entries and large map values.
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Fixes:
6c9059817432 ("bpf: pre-allocate hash map elements")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Govindarajulu Varadarajan [Tue, 21 Mar 2017 22:07:48 +0000 (15:07 -0700)]
enic: update enic maintainers
update enic maintainers
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Doug Berger [Tue, 21 Mar 2017 21:01:06 +0000 (14:01 -0700)]
net: bcmgenet: remove bcmgenet_internal_phy_setup()
Commit
6ac3ce8295e6 ("net: bcmgenet: Remove excessive PHY reset")
removed the bcmgenet_mii_reset() function from bcmgenet_power_up() and
bcmgenet_internal_phy_setup() functions. In so doing it broke the reset
of the internal PHY devices used by the GENETv1-GENETv3 which required
this reset before the UniMAC was enabled. It also broke the internal
GPHY devices used by the GENETv4 because the config_init that installed
the AFE workaround was no longer occurring after the reset of the GPHY
performed by bcmgenet_phy_power_set() in bcmgenet_internal_phy_setup().
In addition the code in bcmgenet_internal_phy_setup() related to the
"enable APD" comment goes with the bcmgenet_mii_reset() so it should
have also been removed.
Commit
bd4060a6108b ("net: bcmgenet: Power on integrated GPHY in
bcmgenet_power_up()") moved the bcmgenet_phy_power_set() call to the
bcmgenet_power_up() function, but failed to remove it from the
bcmgenet_internal_phy_setup() function. Had it done so, the
bcmgenet_internal_phy_setup() function would have been empty and could
have been removed at that time.
Commit
5dbebbb44a6a ("net: bcmgenet: Software reset EPHY after power on")
was submitted to correct the functional problems introduced by
commit
6ac3ce8295e6 ("net: bcmgenet: Remove excessive PHY reset"). It
was included in v4.4 and made available on 4.3-stable. Unfortunately,
it didn't fully revert the commit because this bcmgenet_mii_reset()
doesn't apply the soft reset to the internal GPHY used by GENETv4 like
the previous one did. This prevents the restoration of the AFE work-
arounds for internal GPHY devices after the bcmgenet_phy_power_set() in
bcmgenet_internal_phy_setup().
This commit takes the alternate approach of removing the unnecessary
bcmgenet_internal_phy_setup() function which shouldn't have been in v4.3
so that when bcmgenet_mii_reset() was restored it should have only gone
into bcmgenet_power_up(). This will avoid the problems while also
removing the redundancy (and hopefully some of the confusion).
Fixes:
6ac3ce8295e6 ("net: bcmgenet: Remove excessive PHY reset")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Potapenko [Tue, 21 Mar 2017 16:14:27 +0000 (17:14 +0100)]
ipv6: make sure to initialize sockc.tsflags before first use
In the case udp_sk(sk)->pending is AF_INET6, udpv6_sendmsg() would
jump to do_append_data, skipping the initialization of sockc.tsflags.
Fix the problem by moving sockc.tsflags initialization earlier.
The bug was detected with KMSAN.
Fixes:
c14ac9451c34 ("sock: enable timestamping using control messages")
Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 22 Mar 2017 19:38:17 +0000 (12:38 -0700)]
Merge branch 'fjes-fixes'
YASUAKI ISHIMATSU says:
====================
fjes: Do not load fjes driver
The fjes driver is used only by FUJITSU servers and almost of all
servers in the world never use it. But currently if ACPI PNP0C02
is defined in the ACPI table, the following message is always shown:
"FUJITSU Extended Socket Network Device Driver - version 1.2
- Copyright (c) 2015 FUJITSU LIMITED"
The message makes users confused because there is no reason that
the message is shown in other vendor servers.
To avoid the confusion, the patch adds several checks.
v3:
- Rebase on latest net tree.
- Add _STA method check to avoid loading fjes driver.
v2:
- Order local variable declarations from longest to shortest line
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Yasuaki Ishimatsu [Tue, 21 Mar 2017 15:46:35 +0000 (11:46 -0400)]
fjes: Do not load fjes driver if extended socket device is not power on.
The extended device socket cannot turn on/off while system is running.
So when system boots up and the device is not power on, the fjes driver
does not need be loaded.
To check the status of the device, the patch adds ACPI _STA method check.
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
CC: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yasuaki Ishimatsu [Tue, 21 Mar 2017 15:44:25 +0000 (11:44 -0400)]
fjes: Do not load fjes driver if system does not have extended socket device.
The fjes driver is used only by FUJITSU servers and almost of all
servers in the world never use it. But currently if ACPI PNP0C02
is defined in the ACPI table, the following message is always shown:
"FUJITSU Extended Socket Network Device Driver - version 1.2
- Copyright (c) 2015 FUJITSU LIMITED"
The message makes users confused because there is no reason that
the message is shown in other vendor servers.
To avoid the confusion, the patch adds a check that the server
has a extended socket device or not.
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
CC: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 22 Mar 2017 19:11:14 +0000 (12:11 -0700)]
Merge branch 'mlx5-fixes'
Saeed Mahameed says:
====================
Mellanox mlx5 fixes 2017-03-21
This series contains some mlx5 core and ethernet driver fixes.
For -stable:
net/mlx5e: Count LRO packets correctly (for kernel >= 4.2)
net/mlx5e: Count GSO packets correctly (for kernel >= 4.2)
net/mlx5: Increase number of max QPs in default profile (for kernel >= 4.0)
net/mlx5e: Avoid supporting udp tunnel port ndo for VF reps (for kernel >= 4.10)
net/mlx5e: Use the proper UAPI values when offloading TC vlan actions (for kernel >= v4.9)
net/mlx5: E-Switch, Don't allow changing inline mode when flows are configured (for kernel >= 4.10)
net/mlx5e: Change the TC offload rule add/del code path to be per NIC or E-Switch (for kernel >= 4.10)
net/mlx5: Add missing entries for set/query rate limit commands (for kernel >= 4.8)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Gal Pressman [Tue, 21 Mar 2017 13:59:19 +0000 (15:59 +0200)]
net/mlx5e: Count LRO packets correctly
RX packets statistics ('rx_packets' counter) used to count LRO packets
as one, even though it contains multiple segments.
This patch will increment the counter by the number of segments, and
align the driver with the behavior of other drivers in the stack.
Note that no information is lost in this patch due to 'rx_lro_packets'
counter existence.
Before, ethtool showed:
$ ethtool -S ens6 | egrep "rx_packets|rx_lro_packets"
rx_packets: 435277
rx_lro_packets: 35847
rx_packets_phy: 1935066
Now, we will see the more logical statistics:
$ ethtool -S ens6 | egrep "rx_packets|rx_lro_packets"
rx_packets: 1935066
rx_lro_packets: 35847
rx_packets_phy: 1935066
Fixes:
e586b3b0baee ("net/mlx5: Ethernet Datapath files")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Cc: kernel-team@fb.com
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gal Pressman [Tue, 21 Mar 2017 13:59:18 +0000 (15:59 +0200)]
net/mlx5e: Count GSO packets correctly
TX packets statistics ('tx_packets' counter) used to count GSO packets
as one, even though it contains multiple segments.
This patch will increment the counter by the number of segments, and
align the driver with the behavior of other drivers in the stack.
Note that no information is lost in this patch due to 'tx_tso_packets'
counter existence.
Before, ethtool showed:
$ ethtool -S ens6 | egrep "tx_packets|tx_tso_packets"
tx_packets: 61340
tx_tso_packets: 60954
tx_packets_phy: 2451115
Now, we will see the more logical statistics:
$ ethtool -S ens6 | egrep "tx_packets|tx_tso_packets"
tx_packets: 2451115
tx_tso_packets: 60954
tx_packets_phy: 2451115
Fixes:
e586b3b0baee ("net/mlx5: Ethernet Datapath files")
Signed-off-by: Gal Pressman <galp@mellanox.com>
Cc: kernel-team@fb.com
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Maor Gottlieb [Tue, 21 Mar 2017 13:59:17 +0000 (15:59 +0200)]
net/mlx5: Increase number of max QPs in default profile
With ConnectX-4 sharing SRQs from the same space as QPs, we hit a
limit preventing some applications to allocate needed QPs amount.
Double the size to 256K.
Fixes:
e126ba97dba9e ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Blakey [Tue, 21 Mar 2017 13:59:16 +0000 (15:59 +0200)]
net/mlx5e: Avoid supporting udp tunnel port ndo for VF reps
This was added to allow the TC offloading code to identify offloading
encap/decap vxlan rules.
The VF reps are effectively related to the same mlx5 PCI device as the
PF. Since the kernel invokes the (say) delete ndo for each netdev, the
FW erred on multiple vxlan dst port deletes when the port was deleted
from the system.
We fix that by keeping the registration to be carried out only by the
PF. Since the PF serves as the uplink device, the VF reps will look
up a port there and realize if they are ok to offload that.
Tested:
<SETUP VFS>
<SETUP switchdev mode to have representors>
ip link add vxlan1 type vxlan id 44 dev ens5f0 dstport 9999
ip link set vxlan1 up
ip link del dev vxlan1
Fixes:
4a25730eb202 ('net/mlx5e: Add ndo_udp_tunnel_add to VF representors')
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Tue, 21 Mar 2017 13:59:15 +0000 (15:59 +0200)]
net/mlx5e: Use the proper UAPI values when offloading TC vlan actions
Currently we use the non UAPI values and we miss erring on
the modify action which is not supported, fix that.
Fixes:
8b32580df1cb ('net/mlx5e: Add TC vlan action for SRIOV offloads')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roi Dayan [Tue, 21 Mar 2017 13:59:14 +0000 (15:59 +0200)]
net/mlx5: E-Switch, Don't allow changing inline mode when flows are configured
Changing the eswitch inline mode can potentially cause already configured
flows not to match the policy. E.g. set policy L4, add some L4 rules,
set policy to L2 --> bad! Hence we disallow it.
Keep track of how many offloaded rules are now set and refuse
inline mode changes if this isn't zero.
Fixes:
bffaa916588e ("net/mlx5: E-Switch, Add control for inline mode")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Tue, 21 Mar 2017 13:59:13 +0000 (15:59 +0200)]
net/mlx5e: Change the TC offload rule add/del code path to be per NIC or E-Switch
Refactor the code to deal with add/del TC rules to have handler per NIC/E-switch
offloading use case, and push the latter into the e-switch code. This provides
better separation and is to be used in down-stream patch for applying a fix.
Fixes:
bffaa916588e ("net/mlx5: E-Switch, Add control for inline mode")
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Tue, 21 Mar 2017 13:59:12 +0000 (15:59 +0200)]
net/mlx5: Add missing entries for set/query rate limit commands
The switch cases for the rate limit set and query commands were
missing, which could get us wrong under fw error or driver reset
flow, fix that.
Fixes:
1466cc5b23d1 ('net/mlx5: Rate limit tables support')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 22 Mar 2017 19:06:49 +0000 (12:06 -0700)]
Merge tag 'wireless-drivers-for-davem-2017-03-21' of git://git./linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 4.11
iwlwifi
* fix a user reported warning in DQA
mwifiex
* fix a potential double free
* fix lost early debug logs
* fix init wakeup warning message from device framework
* add Ganapathi and Xinming as maintainers
ath10k
* fix regression with QCA6174 during resume and firmware crash
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ying Xue [Tue, 21 Mar 2017 09:47:49 +0000 (10:47 +0100)]
tipc: fix nametbl deadlock at tipc_nametbl_unsubscribe
Until now, tipc_nametbl_unsubscribe() is called at subscriptions
reference count cleanup. Usually the subscriptions cleanup is
called at subscription timeout or at subscription cancel or at
subscriber delete.
We have ignored the possibility of this being called from other
locations, which causes deadlock as we try to grab the
tn->nametbl_lock while holding it already.
CPU1: CPU2:
---------- ----------------
tipc_nametbl_publish
spin_lock_bh(&tn->nametbl_lock)
tipc_nametbl_insert_publ
tipc_nameseq_insert_publ
tipc_subscrp_report_overlap
tipc_subscrp_get
tipc_subscrp_send_event
tipc_close_conn
tipc_subscrb_release_cb
tipc_subscrb_delete
tipc_subscrp_put
tipc_subscrp_put
tipc_subscrp_kref_release
tipc_nametbl_unsubscribe
spin_lock_bh(&tn->nametbl_lock)
<<grab nametbl_lock again>>
CPU1: CPU2:
---------- ----------------
tipc_nametbl_stop
spin_lock_bh(&tn->nametbl_lock)
tipc_purge_publications
tipc_nameseq_remove_publ
tipc_subscrp_report_overlap
tipc_subscrp_get
tipc_subscrp_send_event
tipc_close_conn
tipc_subscrb_release_cb
tipc_subscrb_delete
tipc_subscrp_put
tipc_subscrp_put
tipc_subscrp_kref_release
tipc_nametbl_unsubscribe
spin_lock_bh(&tn->nametbl_lock)
<<grab nametbl_lock again>>
In this commit, we advance the calling of tipc_nametbl_unsubscribe()
from the refcount cleanup to the intended callers.
Fixes:
d094c4d5f5c7 ("tipc: add subscription refcount to avoid invalid delete")
Reported-by: John Thompson <thompa.atl@gmail.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 20 Mar 2017 10:00:28 +0000 (18:00 +0800)]
sctp: remove useless err from sctp_association_init
This patch is to remove the unnecessary temporary variable 'err' from
sctp_association_init.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 20 Mar 2017 09:46:27 +0000 (17:46 +0800)]
sctp: declare struct sctp_stream before using it
sctp_stream_free uses struct sctp_stream as a param, but struct sctp_stream
is defined after it's declaration.
This patch is to declare struct sctp_stream before sctp_stream_free.
Fixes:
a83863174a61 ("sctp: prepare asoc stream for stream reconf")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Mon, 20 Mar 2017 08:58:33 +0000 (09:58 +0100)]
cpsw/netcp: cpts depends on posix_timers
With posix timers having become optional, we get a build error with
the cpts time sync option of the CPSW driver:
drivers/net/ethernet/ti/cpts.c: In function 'cpts_find_ts':
drivers/net/ethernet/ti/cpts.c:291:23: error: implicit declaration of function 'ptp_classify_raw';did you mean 'ptp_classifier_init'? [-Werror=implicit-function-declaration]
This adds a hard dependency on PTP_CLOCK to avoid the problem, as
building it without PTP support makes no sense anyway.
Fixes:
baa73d9e478f ("posix-timers: Make them configurable")
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Mon, 20 Mar 2017 08:52:50 +0000 (09:52 +0100)]
cpsw/netcp: work around reverse cpts dependency
The dependency is reversed: cpsw and netcp call into cpts,
but cpts depends on the other two in Kconfig. This can lead
to cpts being a loadable module and its callers built-in:
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_remove':
cpsw.c:(.text.cpsw_remove+0xd0): undefined reference to `cpts_release'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_rx_handler':
cpsw.c:(.text.cpsw_rx_handler+0x2dc): undefined reference to `cpts_rx_timestamp'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_tx_handler':
cpsw.c:(.text.cpsw_tx_handler+0x7c): undefined reference to `cpts_tx_timestamp'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_ndo_stop':
As a workaround, I'm introducing another Kconfig symbol to
control the compilation of cpts, while making the actual
module controlled by a silent symbol that is =y when necessary.
Fixes:
6246168b4a38 ("net: ethernet: ti: netcp: add support of cpts")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 22 Mar 2017 17:50:37 +0000 (10:50 -0700)]
Merge branch 'r8152-rx-settings'
Hayes Wang says:
====================
r8152: fix the rx settings of RTL8153
The RMS and the rx early size should base on the same rx size. However,
the RMS is set to 9K bytes now and the rx early depends on mtu. For using
the rx buffer effectively, sync the two settings according to the mtu.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Mon, 20 Mar 2017 08:13:45 +0000 (16:13 +0800)]
r8152: fix the rx early size of RTL8153
revert commit
a59e6d815226 ("r8152: correct the rx early size") and
fix the rx early size as
(rx buffer size - rx packet size - rx desc size - alignment) / 4
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Mon, 20 Mar 2017 08:13:44 +0000 (16:13 +0800)]
r8152: set the RMS of RTL8153 according to the mtu
Set the received maximum size (RMS) according to the mtu size. It is
unnecessary to receive a packet which is more than the size we could
transmit. Besides, this could let the rx buffer be used effectively.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tejun Heo [Tue, 14 Mar 2017 23:25:56 +0000 (19:25 -0400)]
cgroup, net_cls: iterate the fds of only the tasks which are being migrated
The net_cls controller controls the classid field of each socket which
is associated with the cgroup. Because the classid is per-socket
attribute, when a task migrates to another cgroup or the configured
classid of the cgroup changes, the controller needs to walk all
sockets and update the classid value, which was implemented by
3b13758f51de ("cgroups: Allow dynamically changing net_classid").
While the approach is not scalable, migrating tasks which have a lot
of fds attached to them is rare and the cost is born by the ones
initiating the operations. However, for simplicity, both the
migration and classid config change paths call update_classid() which
scans all fds of all tasks in the target css. This is an overkill for
the migration path which only needs to cover a much smaller subset of
tasks which are actually getting migrated in.
On cgroup v1, this can lead to unexpected scalability issues when one
tries to migrate a task or process into a net_cls cgroup which already
contains a lot of fds. Even if the migration traget doesn't have many
to get scanned, update_classid() ends up scanning all fds in the
target cgroup which can be extremely numerous.
Unfortunately, on cgroup v2 which doesn't use net_cls, the problem is
even worse. Before
bfc2cf6f61fc ("cgroup: call subsys->*attach() only
for subsystems which are actually affected by migration"), cgroup core
would call the ->css_attach callback even for controllers which don't
see actual migration to a different css.
As net_cls is always disabled but still mounted on cgroup v2, whenever
a process is migrated on the cgroup v2 hierarchy, net_cls sees
identity migration from root to root and cgroup core used to call
->css_attach callback for those. The net_cls ->css_attach ends up
calling update_classid() on the root net_cls css to which all
processes on the system belong to as the controller isn't used. This
makes any cgroup v2 migration O(total_number_of_fds_on_the_system)
which is horrible and easily leads to noticeable stalls triggering RCU
stall warnings and so on.
The worst symptom is already fixed in upstream by
bfc2cf6f61fc
("cgroup: call subsys->*attach() only for subsystems which are
actually affected by migration"); however, backporting that commit is
too invasive and we want to avoid other cases too.
This patch updates net_cls's cgrp_attach() to iterate fds of only the
processes which are actually getting migrated. This removes the
surprising migration cost which is dependent on the total number of
fds in the target cgroup. As this leaves write_classid() the only
user of update_classid(), open-code the helper into write_classid().
Reported-by: David Goode <dgoode@fb.com>
Fixes:
3b13758f51de ("cgroups: Allow dynamically changing net_classid")
Cc: stable@vger.kernel.org # v4.4+
Cc: Nina Schiff <ninasc@fb.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Lindgren [Sun, 19 Mar 2017 16:19:57 +0000 (09:19 -0700)]
net: qmi_wwan: Add USB IDs for MDM6600 modem on Motorola Droid 4
This gets qmicli working with the MDM6600 modem.
Cc: Bjørn Mork <bjorn@mork.no>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Tested-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Zi Shen Lim [Mon, 20 Mar 2017 06:03:14 +0000 (23:03 -0700)]
selftests/bpf: fix broken build, take 2
Merge of 'linux-kselftest-4.11-rc1':
1. Partially removed use of 'test_objs' target, breaking force rebuild of
BPFOBJ, introduced in commit
d498f8719a09 ("bpf: Rebuild bpf.o for any
dependency update").
Update target so dependency on BPFOBJ is restored.
2. Introduced commit
2047f1d8ba28 ("selftests: Fix the .c linking rule")
which fixes order of LDLIBS.
Commit
d02d8986a768 ("bpf: Always test unprivileged programs") added
libcap dependency into CFLAGS. Use LDLIBS instead to fix linking of
test_verifier.
3. Introduced commit
d83c3ba0b926 ("selftests: Fix selftests build to
just build, not run tests").
Reordering the Makefile allows us to remove the 'all' target.
Tested both:
selftests/bpf$ make
and
selftests$ make TARGETS=bpf
on Ubuntu 16.04.2.
Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Soheil Hassas Yeganeh [Sat, 18 Mar 2017 21:03:00 +0000 (17:03 -0400)]
tcp: mark skbs with SCM_TIMESTAMPING_OPT_STATS
SOF_TIMESTAMPING_OPT_STATS can be enabled and disabled
while packets are collected on the error queue.
So, checking SOF_TIMESTAMPING_OPT_STATS in sk->sk_tsflags
is not enough to safely assume that the skb contains
OPT_STATS data.
Add a bit in sock_exterr_skb to indicate whether the
skb contains opt_stats data.
Fixes:
1c885808e456 ("tcp: SOF_TIMESTAMPING_OPT_STATS option for SO_TIMESTAMPING")
Reported-by: JongHwan Kim <zzoru007@gmail.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Soheil Hassas Yeganeh [Sat, 18 Mar 2017 21:02:59 +0000 (17:02 -0400)]
tcp: fix SCM_TIMESTAMPING_OPT_STATS for normal skbs
__sock_recv_timestamp can be called for both normal skbs (for
receive timestamps) and for skbs on the error queue (for transmit
timestamps).
Commit
1c885808e456
(tcp: SOF_TIMESTAMPING_OPT_STATS option for SO_TIMESTAMPING)
assumes any skb passed to __sock_recv_timestamp are from
the error queue, containing OPT_STATS in the content of the skb.
This results in accessing invalid memory or generating junk
data.
To fix this, set skb->pkt_type to PACKET_OUTGOING for packets
on the error queue. This is safe because on the receive path
on local sockets skb->pkt_type is never set to PACKET_OUTGOING.
With that, copy OPT_STATS from a packet, only if its pkt_type
is PACKET_OUTGOING.
Fixes:
1c885808e456 ("tcp: SOF_TIMESTAMPING_OPT_STATS option for SO_TIMESTAMPING")
Reported-by: JongHwan Kim <zzoru007@gmail.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Sat, 18 Mar 2017 12:03:59 +0000 (20:03 +0800)]
sctp: out_qlen should be updated when pruning unsent queue
This patch is to fix the issue that sctp_prsctp_prune_sent forgot
to update q->out_qlen when removing a chunk from unsent queue.
Fixes:
8dbdf1f5b09c ("sctp: implement prsctp PRIO policy")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Sat, 18 Mar 2017 11:27:23 +0000 (19:27 +0800)]
sctp: define dst_pending_confirm as a bit in sctp_transport
As tp->dst_pending_confirm's value can only be set 0 or 1, this
patch is to change to define it as a bit instead of __u32.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Sat, 18 Mar 2017 11:12:22 +0000 (19:12 +0800)]
sctp: remove temporary variable confirm from sctp_packet_transmit
Commit
c86a773c7802 ("sctp: add dst_pending_confirm flag") introduced
a temporary variable "confirm" in sctp_packet_transmit.
But it broke the rule that longer lines should be above shorter ones.
Besides, this variable is not necessary, so this patch is to just
remove it and use tp->dst_pending_confirm directly.
Fixes:
c86a773c7802 ("sctp: add dst_pending_confirm flag")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Fri, 17 Mar 2017 23:07:11 +0000 (16:07 -0700)]
net: vrf: Reset rt6i_idev in local dst after put
The VRF driver takes a reference to the inet6_dev on the VRF device for
its rt6_local dst when handling local traffic through the VRF device as
a loopback. When the device is deleted the driver does a put on the idev
but does not reset rt6i_idev in the rt6_info struct. When the dst is
destroyed, dst_destroy calls ip6_dst_destroy which does a second put for
what is essentially the same reference causing it to be prematurely freed.
Reset rt6i_idev after the put in the vrf driver.
Fixes:
b4869aa2f881e ("net: vrf: ipv6 support for local traffic to
local addresses")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Fri, 17 Mar 2017 20:52:35 +0000 (23:52 +0300)]
bna: integer overflow bug in debugfs
We could allocate less memory than intended because we do:
bnad->regdata = kzalloc(len << 2, GFP_KERNEL);
The shift can overflow leading to a crash. This is debugfs code so the
impact is very small.
Fixes:
7afc5dbde091 ("bna: Add debugfs interface.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rasesh Mody <rasesh.mody@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Fri, 17 Mar 2017 16:20:48 +0000 (17:20 +0100)]
qmi_wwan: add Dell DW5811e
This is a Dell branded Sierra Wireless EM7455. It is operating in
MBIM mode by default, but can be configured to provide two QMI/RMNET
functions.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 17 Mar 2017 15:05:28 +0000 (08:05 -0700)]
sch_dsmark: fix invalid skb_cow() usage
skb_cow(skb, sizeof(ip header)) is not very helpful in this context.
First we need to use pskb_may_pull() to make sure the ip header
is in skb linear part, then use skb_try_make_writable() to
address clones issues.
Fixes:
4c30719f4f55 ("[PKT_SCHED] dsmark: handle cloned and non-linear skb's")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yaroslav Isakov [Thu, 16 Mar 2017 19:44:10 +0000 (22:44 +0300)]
tun: fix inability to set offloads after disabling them via ethtool
Added missing logic in tun driver, which prevents apps to set
offloads using tun ioctl, if offloads were previously disabled via ethtool
Signed-off-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrey Ulanov [Wed, 15 Mar 2017 03:16:42 +0000 (20:16 -0700)]
net: unix: properly re-increment inflight counter of GC discarded candidates
Dmitry has reported that a BUG_ON() condition in unix_notinflight()
may be triggered by a simple code that forwards unix socket in an
SCM_RIGHTS message.
That is caused by incorrect unix socket GC implementation in unix_gc().
The GC first collects list of candidates, then (a) decrements their
"children's" inflight counter, (b) checks which inflight counters are
now 0, and then (c) increments all inflight counters back.
(a) and (c) are done by calling scan_children() with inc_inflight or
dec_inflight as the second argument.
Commit
6209344f5a37 ("net: unix: fix inflight counting bug in garbage
collector") changed scan_children() such that it no longer considers
sockets that do not have UNIX_GC_CANDIDATE flag. It also added a block
of code that that unsets this flag _before_ invoking
scan_children(, dec_iflight, ). This may lead to incorrect inflight
counters for some sockets.
This change fixes this bug by changing order of operations:
UNIX_GC_CANDIDATE is now unset only after all inflight counters are
restored to the original state.
kernel BUG at net/unix/garbage.c:149!
RIP: 0010:[<
ffffffff8717ebf4>] [<
ffffffff8717ebf4>]
unix_notinflight+0x3b4/0x490 net/unix/garbage.c:149
Call Trace:
[<
ffffffff8716cfbf>] unix_detach_fds.isra.19+0xff/0x170 net/unix/af_unix.c:1487
[<
ffffffff8716f6a9>] unix_destruct_scm+0xf9/0x210 net/unix/af_unix.c:1496
[<
ffffffff86a90a01>] skb_release_head_state+0x101/0x200 net/core/skbuff.c:655
[<
ffffffff86a9808a>] skb_release_all+0x1a/0x60 net/core/skbuff.c:668
[<
ffffffff86a980ea>] __kfree_skb+0x1a/0x30 net/core/skbuff.c:684
[<
ffffffff86a98284>] kfree_skb+0x184/0x570 net/core/skbuff.c:705
[<
ffffffff871789d5>] unix_release_sock+0x5b5/0xbd0 net/unix/af_unix.c:559
[<
ffffffff87179039>] unix_release+0x49/0x90 net/unix/af_unix.c:836
[<
ffffffff86a694b2>] sock_release+0x92/0x1f0 net/socket.c:570
[<
ffffffff86a6962b>] sock_close+0x1b/0x20 net/socket.c:1017
[<
ffffffff81a76b8e>] __fput+0x34e/0x910 fs/file_table.c:208
[<
ffffffff81a771da>] ____fput+0x1a/0x20 fs/file_table.c:244
[<
ffffffff81483ab0>] task_work_run+0x1a0/0x280 kernel/task_work.c:116
[< inline >] exit_task_work include/linux/task_work.h:21
[<
ffffffff8141287a>] do_exit+0x183a/0x2640 kernel/exit.c:828
[<
ffffffff8141383e>] do_group_exit+0x14e/0x420 kernel/exit.c:931
[<
ffffffff814429d3>] get_signal+0x663/0x1880 kernel/signal.c:2307
[<
ffffffff81239b45>] do_signal+0xc5/0x2190 arch/x86/kernel/signal.c:807
[<
ffffffff8100666a>] exit_to_usermode_loop+0x1ea/0x2d0
arch/x86/entry/common.c:156
[< inline >] prepare_exit_to_usermode arch/x86/entry/common.c:190
[<
ffffffff81009693>] syscall_return_slowpath+0x4d3/0x570
arch/x86/entry/common.c:259
[<
ffffffff881478e6>] entry_SYSCALL_64_fastpath+0xc4/0xc6
Link: https://lkml.org/lkml/2017/3/6/252
Signed-off-by: Andrey Ulanov <andreyu@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Fixes: 6209344 ("net: unix: fix inflight counting bug in garbage collector")
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 21 Mar 2017 21:41:47 +0000 (14:41 -0700)]
Merge branch 'vsock-pkt-cancel'
Peng Tao says:
====================
vsock: cancel connect packets when failing to connect
Currently, if a connect call fails on a signal or timeout (e.g., guest is still
in the process of starting up), we'll just return to caller and leave the connect
packet queued and they are sent even though the connection is considered a failure,
which can confuse applications with unwanted false connect attempt.
The patchset enables vsock (both host and guest) to cancel queued packets when
a connect attempt is considered to fail.
v5 changelog:
- change virtio_vsock_pkt->cancel_token back to virtio_vsock_pkt->vsk
v4 changelog:
- drop two unnecessary void * cast
- update new callback comment
v3 changelog:
- define cancel_pkt callback in struct vsock_transport rather than struct virtio_transport
- rename virtio_vsock_pkt->vsk to virtio_vsock_pkt->cancel_token
v2 changelog:
- fix queued_replies counting and resume tx/rx when necessary
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Tao [Wed, 15 Mar 2017 01:32:17 +0000 (09:32 +0800)]
vsock: cancel packets when failing to connect
Otherwise we'll leave the packets queued until releasing vsock device.
E.g., if guest is slow to start up, resulting ETIMEDOUT on connect, guest
will get the connect requests from failed host sockets.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Tao [Wed, 15 Mar 2017 01:32:16 +0000 (09:32 +0800)]
vsock: add pkt cancel capability
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Tao [Wed, 15 Mar 2017 01:32:15 +0000 (09:32 +0800)]
vhost-vsock: add pkt cancel capability
To allow canceling all packets of a connection.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Tao [Wed, 15 Mar 2017 01:32:14 +0000 (09:32 +0800)]
vsock: track pkt owner vsock
So that we can cancel a queued pkt later if necessary.
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu [Tue, 14 Mar 2017 10:25:57 +0000 (18:25 +0800)]
crypto: deadlock between crypto_alg_sem/rtnl_mutex/genl_mutex
On Tue, Mar 14, 2017 at 10:44:10AM +0100, Dmitry Vyukov wrote:
>
> Yes, please.
> Disregarding some reports is not a good way long term.
Please try this patch.
---8<---
Subject: netlink: Annotate nlk cb_mutex by protocol
Currently all occurences of nlk->cb_mutex are annotated by lockdep
as a single class. This causes a false lcokdep cycle involving
genl and crypto_user.
This patch fixes it by dividing cb_mutex into individual classes
based on the netlink protocol. As genl and crypto_user do not
use the same netlink protocol this breaks the false dependency
loop.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Tue, 14 Mar 2017 06:15:20 +0000 (14:15 +0800)]
r8152: fix the list rx_done may be used without initialization
The list rx_done would be initialized when the linking on occurs.
Therefore, if a napi is scheduled without any linking on before,
the following kernel panic would happen.
BUG: unable to handle kernel NULL pointer dereference at
000000000000008
IP: [<
ffffffffc085efde>] r8152_poll+0xe1e/0x1210 [r8152]
PGD 0
Oops: 0002 [#1] SMP
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ryan Hsu [Mon, 13 Mar 2017 22:49:03 +0000 (15:49 -0700)]
ath10k: fix incorrect wlan_mac_base in qca6174_regs
In the 'commit
ebee76f7fa46 ("ath10k: allow setting coverage class")',
it inherits the design and the address offset from ath9k, but the address
is not applicable to QCA6174, which leads to a random crash while doing the
resume() operation, since the set_coverage_class.ops will be called from
ieee80211_reconfig() when resume() (if the wow is not configured).
Fix the incorrect address offset here to avoid the random crash.
Verified on QCA6174/hw3.0 with firmware WLAN.RM.4.4-00022-QCARMSWPZ-2.
kvalo: this also seems to fix a regression with firmware restart.
Fixes:
ebee76f7fa46 ("ath10k: allow setting coverage class")
Cc: <stable@vger.kernel.org> # v4.10
Signed-off-by: Ryan Hsu <ryanhsu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Eric Dumazet [Thu, 16 Mar 2017 22:43:19 +0000 (15:43 -0700)]
tcp: tcp_get_info() should read tcp_time_stamp later
Commit
b369e7fd41f7 ("tcp: make TCP_INFO more consistent") moved
lock_sock_fast() earlier in tcp_get_info()
This has the minor effect that jiffies value being sampled at the
beginning of tcp_get_info() is more likely to be off by one, and we
report big tcpi_last_data_sent values (like 0xFFFFFFFF).
Since we lock the socket, fetching tcp_time_stamp right before
doing the jiffies_to_msecs() calls is enough to remove these
wrong values.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Thu, 16 Mar 2017 19:21:32 +0000 (12:21 -0700)]
netvsc: fix race during initialization
When device is being setup on boot, there is a small race where
network device callback is registered, but the netvsc_device pointer
is not set yet. This can cause a NULL ptr dereference if packet
arrives during this window.
Fixes:
46b4f7f5d1f7 ("netvsc: eliminate per-device outstanding send counter")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
WANG Cong [Thu, 16 Mar 2017 17:32:42 +0000 (10:32 -0700)]
bridge: resolve a false alarm of lockdep
Andrei reported a false alarm of lockdep at net/bridge/br_fdb.c:109,
this is because in Andrei's case, a spin_bug() was already triggered
before this, therefore the debug_locks is turned off, lockdep_is_held()
is no longer accurate after that. We should use lockdep_assert_held_once()
instead of lockdep_is_held() to respect debug_locks.
Fixes:
410b3d48f5111 ("bridge: fdb: add proper lock checks in searching functions")
Reported-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Howells [Thu, 16 Mar 2017 16:27:10 +0000 (16:27 +0000)]
rxrpc: Ignore BUSY packets on old calls
If we receive a BUSY packet for a call we think we've just completed, the
packet is handed off to the connection processor to deal with - but the
connection processor doesn't expect a BUSY packet and so flags a protocol
error.
Fix this by simply ignoring the BUSY packet for the moment.
The symptom of this may appear as a system call failing with EPROTO. This
may be triggered by pressing ctrl-C under some circumstances.
This comes about we abort calls due to interruption by a signal (which we
shouldn't do, but that's going to be a large fix and mostly in fs/afs/).
What happens is that we abort the call and may also abort follow up calls
too (this needs offloading somehoe). So we see a transmission of something
like the following sequence of packets:
DATA for call N
ABORT call N
DATA for call N+1
ABORT call N+1
in very quick succession on the same channel. However, the peer may have
deferred the processing of the ABORT from the call N to a background thread
and thus sees the DATA message from the call N+1 coming in before it has
cleared the channel. Thus it sends a BUSY packet[*].
[*] Note that some implementations (OpenAFS, for example) mark the BUSY
packet with one plus the callNumber of the call prior to call N.
Ordinarily, this would be call N, but there's no requirement for the
calls on a channel to be numbered strictly sequentially (the number is
required to increase).
This is wrong and means that the callNumber in the BUSY packet should
be ignored (it really ought to be N+1 since that's what it's in
response to).
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nathan Fontenot [Thu, 16 Mar 2017 03:38:07 +0000 (23:38 -0400)]
ibmvnic: Free tx/rx scrq pointer array when releasing sub-crqs
The pointer array for the tx/rx sub crqs should be free'ed when
releasing the tx/rx sub crqs.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Thu, 16 Mar 2017 01:14:33 +0000 (18:14 -0700)]
net: ipv6: set route type for anycast routes
Anycast routes have the RTF_ANYCAST flag set, but when dumping routes
for userspace the route type is not set to RTN_ANYCAST. Make it so.
Fixes:
58c4fb86eabcb ("[IPV6]: Flag RTF_ANYCAST for anycast routes")
CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 13 Mar 2017 23:49:10 +0000 (16:49 -0700)]
net: mpls: Fix nexthop alive tracking on down events
Alive tracking of nexthops can account for a link twice if the carrier
goes down followed by an admin down of the same link rendering multipath
routes useless. This is similar to
79099aab38c8 for UNREGISTER events and
DOWN events.
Fix by tracking number of alive nexthops in mpls_ifdown similar to the
logic in mpls_ifup. Checking the flags per nexthop once after all events
have been processed is simpler than trying to maintian a running count
through all event combinations.
Also, WRITE_ONCE is used instead of ACCESS_ONCE to set rt_nhn_alive
per a comment from checkpatch:
WARNING: Prefer WRITE_ONCE(<FOO>, <BAR>) over ACCESS_ONCE(<FOO>) = <BAR>
Fixes:
c89359a42e2a4 ("mpls: support for dead routes")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Arcari [Mon, 13 Mar 2017 23:07:16 +0000 (19:07 -0400)]
net: ethernet: aquantia: set net_device mtu when mtu is changed
When the aquantia device mtu is changed the net_device structure is not
updated. As a result the ip command does not properly reflect the mtu change.
Commit
5513e16421cb incorrectly assumed that __dev_set_mtu() was making the
assignment ndev->mtu = new_mtu; This is not true in the case where the driver
has a ndo_change_mtu routine.
Fixes:
5513e16421cb ("net: ethernet: aquantia: Fixes for aq_ndev_change_mtu")
Cc: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: David Arcari <darcari@redhat.com>
Tested-by: Pavel Belous <pavel.belous@aquantia.com>
Reviewed-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jack Morgenstein [Mon, 13 Mar 2017 17:29:08 +0000 (19:29 +0200)]
net/mlx4_core: Avoid delays during VF driver device shutdown
Some Hypervisors detach VFs from VMs by instantly causing an FLR event
to be generated for a VF.
In the mlx4 case, this will cause that VF's comm channel to be disabled
before the VM has an opportunity to invoke the VF device's "shutdown"
method.
For such Hypervisors, there is a race condition between the VF's
shutdown method and its internal-error detection/reset thread.
The internal-error detection/reset thread (which runs every 5 seconds) also
detects a disabled comm channel. If the internal-error detection/reset
flow wins the race, we still get delays (while that flow tries repeatedly
to detect comm-channel recovery).
The cited commit fixed the command timeout problem when the
internal-error detection/reset flow loses the race.
This commit avoids the unneeded delays when the internal-error
detection/reset flow wins.
Fixes:
d585df1c5ccf ("net/mlx4_core: Avoid command timeouts during VF driver device shutdown")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Reported-by: Simon Xiao <sixiao@microsoft.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 16 Mar 2017 19:05:38 +0000 (12:05 -0700)]
Merge tag 'batadv-net-for-davem-
20170316' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
Here are two batman-adv bugfixes:
- Keep fragments equally sized, avoids some problems with too small fragments,
by Sven Eckelmann
- Initialize gateway class correctly when BATMAN V is compiled in,
by Sven Eckelmann
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Kris Murphy [Thu, 16 Mar 2017 15:51:28 +0000 (10:51 -0500)]
openvswitch: Add missing case OVS_TUNNEL_KEY_ATTR_PAD
Added a case for OVS_TUNNEL_KEY_ATTR_PAD to the switch statement
in ip_tun_from_nlattr in order to prevent the default case
returning an error.
Fixes:
b46f6ded906e ("libnl: nla_put_be64(): align on a 64-bit area")
Signed-off-by: Kris Murphy <kriskend@linux.vnet.ibm.com>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Johannes Berg [Wed, 15 Mar 2017 13:26:04 +0000 (14:26 +0100)]
nl80211: fix dumpit error path RTNL deadlocks
Sowmini pointed out Dmitry's RTNL deadlock report to me, and it turns out
to be perfectly accurate - there are various error paths that miss unlock
of the RTNL.
To fix those, change the locking a bit to not be conditional in all those
nl80211_prepare_*_dump() functions, but make those require the RTNL to
start with, and fix the buggy error paths. This also let me use sparse
(by appropriately overriding the rtnl_lock/rtnl_unlock functions) to
validate the changes.
Cc: stable@vger.kernel.org
Reported-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Amitkumar Karwar [Tue, 28 Feb 2017 13:24:31 +0000 (18:54 +0530)]
MAINTAINERS: update for mwifiex driver maintainers
Ganapathi & Xinming are starting to take a more active role in the
mwifiex driver maintainership here onwards on account of organizational
changes.
CC: Xinming Hu <huxm@marvell.com>
CC: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Brian Norris [Sat, 11 Mar 2017 01:39:23 +0000 (17:39 -0800)]
mwifiex: uninit wakeup info when removing device
We manually init wakeup info, but we don't detach it on device removal.
This means that if we (for example) rmmod + modprobe the driver, the
device framework might return -EEXIST the second time, and we'll
complain in the logs:
[ 839.311881] mwifiex_pcie 0000:01:00.0: fail to init wakeup for mwifiex
AFAICT, there's no other negative effect.
But we can fix this by disabling wakeup on remove, similar to what a few
other drivers do (e.g., the power supply framework).
This code (and bug) has existed on SDIO for a while, but it got moved
around and enabled for PCIe with commit
853402a00823 ("mwifiex: Enable
WoWLAN for both sdio and pcie").
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Brian Norris [Sat, 11 Mar 2017 01:39:22 +0000 (17:39 -0800)]
mwifiex: set adapter->dev before starting to use mwifiex_dbg()
The mwifiex_dbg() log handler utilizes the struct device in
adapter->dev. Without it, it decides not to print anything.
As of commit
2e02b5814217 ("mwifiex: Allow mwifiex early access to device
structure"), we started assigning that pointer only after we finished
mwifiex_register() -- this effectively neuters any mwifiex_dbg() logging
done before this point.
Let's move the device assignment into mwifiex_register().
Fixes:
2e02b5814217 ("mwifiex: Allow mwifiex early access to device structure")
Cc: Rajat Jain <rajatja@google.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Brian Norris [Sat, 11 Mar 2017 01:39:21 +0000 (17:39 -0800)]
mwifiex: pcie: don't leak DMA buffers when removing
When PCIe FLR support was added, much of the remove/release code for
PCIe was migrated to ->down_dev(), but ->down_dev() is never called for
device removal. Let's refactor the cleanup to be done in both cases.
Also, drop the comments above mwifiex_cleanup_pcie(), because they were
clearly wrong, and it's better to have clear and obvious code than to
detail the code steps in comments anyway.
Fixes:
4c5dae59d2e9 ("mwifiex: add PCIe function level reset support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Sara Sharon [Tue, 14 Mar 2017 07:50:35 +0000 (09:50 +0200)]
iwlwifi: mvm: cleanup pending frames in DQA mode
When a station is asleep, the fw will set it as "asleep".
All queues that are used only by one station will be stopped by
the fw.
In pre-DQA mode this was relevant for aggregation queues. However,
in DQA mode a queue is owned by one station only, so all queues
will be stopped.
As a result, we don't expect to get filtered frames back to
mac80211 and don't have to maintain the entire pending_frames
state logic, the same way as we do in aggregations.
The correct behavior is to align DQA behavior with the aggregation
queue behaviour pre-DQA:
- Don't count pending frames.
- Let mac80211 know we have frames in these queues so that it can
properly handle trigger frames.
When a trigger frame is received, mac80211 tells the driver to send
frames from the queues using release_buffered_frames.
The driver will tell the fw to let frames out even if the station
is asleep. This is done by iwl_mvm_sta_modify_sleep_tx_count.
Reported-and-tested-by: Jens Axboe <axboe@kernel.dk>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Eric Dumazet [Wed, 15 Mar 2017 20:21:28 +0000 (13:21 -0700)]
net: properly release sk_frag.page
I mistakenly added the code to release sk->sk_frag in
sk_common_release() instead of sk_destruct()
TCP sockets using sk->sk_allocation == GFP_ATOMIC do no call
sk_common_release() at close time, thus leaking one (order-3) page.
iSCSI is using such sockets.
Fixes:
5640f7685831 ("net: use a per task frag allocator")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lendacky, Thomas [Wed, 15 Mar 2017 20:11:23 +0000 (15:11 -0500)]
amd-xgbe: Fix jumbo MTU processing on newer hardware
Newer hardware does not provide a cumulative payload length when multiple
descriptors are needed to handle the data. Once the MTU increases beyond
the size that can be handled by a single descriptor, the SKB does not get
built properly by the driver.
The driver will now calculate the size of the data buffers used by the
hardware. The first buffer of the first descriptor is for packet headers
or packet headers and data when the headers can't be split. Subsequent
descriptors in a multi-descriptor chain will not use the first buffer. The
second buffer is used by all the descriptors in the chain for payload data.
Based on whether the driver is processing the first, intermediate, or last
descriptor it can calculate the buffer usage and build the SKB properly.
Tested and verified on both old and new hardware.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Wed, 15 Mar 2017 19:57:21 +0000 (12:57 -0700)]
net: bcmgenet: Do not suspend PHY if Wake-on-LAN is enabled
Suspending the PHY would be putting it in a low power state where it
may no longer allow us to do Wake-on-LAN.
Fixes:
cc013fb48898 ("net: bcmgenet: correctly suspend and resume PHY device")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira [Wed, 15 Mar 2017 17:39:46 +0000 (18:39 +0100)]
MAINTAINERS: remove MACVLAN and VLAN entries
macvlan.c file seems to be both in VLAN and MACVLAN DRIVER, so remove
the MACVLAN DRIVER since this is redundant.
I propose with this patch to remove the VLAN (802.1Q) entry so this just
falls into the NETWORKING [GENERAL].
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 15 Mar 2017 22:13:13 +0000 (15:13 -0700)]
Merge git://git./pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for your net tree, a
rather large batch of fixes targeted to nf_tables, conntrack and bridge
netfilter. More specifically, they are:
1) Don't track fragmented packets if the socket option IP_NODEFRAG is set.
From Florian Westphal.
2) SCTP protocol tracker assumes that ICMP error messages contain the
checksum field, what results in packet drops. From Ying Xue.
3) Fix inconsistent handling of AH traffic from nf_tables.
4) Fix new bitmap set representation with big endian. Fix mismatches in
nf_tables due to incorrect big endian handling too. Both patches
from Liping Zhang.
5) Bridge netfilter doesn't honor maximum fragment size field, cap to
largest fragment seen. From Florian Westphal.
6) Fake conntrack entry needs to be aligned to 8 bytes since the 3 LSB
bits are now used to store the ctinfo. From Steven Rostedt.
7) Fix element comments with the bitmap set type. Revert the flush
field in the nft_set_iter structure, not required anymore after
fixing up element comments.
8) Missing error on invalid conntrack direction from nft_ct, also from
Liping Zhang.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Wed, 15 Mar 2017 16:10:47 +0000 (18:10 +0200)]
net/openvswitch: Set the ipv6 source tunnel key address attribute correctly
When dealing with ipv6 source tunnel key address attribute
(OVS_TUNNEL_KEY_ATTR_IPV6_SRC) we are wrongly setting the tunnel
dst ip, fix that.
Fixes:
6b26ba3a7d95 ('openvswitch: netlink attributes for IPv6 tunneling')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Paul Blakey <paulb@mellanox.com>
Acked-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Taku Izumi [Wed, 15 Mar 2017 04:47:50 +0000 (13:47 +0900)]
fjes: Fix wrong netdevice feature flags
This patch fixes netdev->features for Extended Socket network device.
Currently Extended Socket network device's netdev->feature claims
NETIF_F_HW_CSUM, however this is completely wrong. There's no feature
of checksum offloading.
That causes invalid TCP/UDP checksum and packet rejection when IP
forwarding from Extended Socket network device to other network device.
NETIF_F_HW_CSUM should be omitted.
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 15 Mar 2017 17:44:19 +0000 (10:44 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a rather large set of fixes. The bulk are for lpfc correcting
a lot of issues in the new NVME driver code which just went in in the
merge window.
The others are:
- fix a hang in the vmware paravirt driver caused by incorrect
handling of the new MSI vector allocation
- long standing bug in storvsc, which recent block changes turned
from being a harmless annoyance into a hang
- yet more fallout (in mpt3sas) from the changes to device blocking
The remainder are small fixes and updates"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (34 commits)
scsi: lpfc: Add shutdown method for kexec
scsi: storvsc: Workaround for virtual DVD SCSI version
scsi: lpfc: revise version number to 11.2.0.10
scsi: lpfc: code cleanups in NVME initiator discovery
scsi: lpfc: code cleanups in NVME initiator base
scsi: lpfc: correct rdp diag portnames
scsi: lpfc: remove dead sli3 nvme code
scsi: lpfc: correct double print
scsi: lpfc: Rename LPFC_MAX_EQ_DELAY to LPFC_MAX_EQ_DELAY_EQID_CNT
scsi: lpfc: Rework lpfc Kconfig for NVME options
scsi: lpfc: add transport eh_timed_out reference
scsi: lpfc: Fix eh_deadline setting for sli3 adapters.
scsi: lpfc: add NVME exchange aborts
scsi: lpfc: Fix nvme allocation bug on failed nvme_fc_register_localport
scsi: lpfc: Fix IO submission if WQ is full
scsi: lpfc: Fix NVME CMD IU byte swapped word 1 problem
scsi: lpfc: Fix RCTL value on NVME LS request and response
scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters
scsi: lpfc: fix missing spin_unlock on sql_list_lock
scsi: lpfc: don't dereference dma_buf->iocbq before null check
...
Linus Torvalds [Wed, 15 Mar 2017 16:33:15 +0000 (09:33 -0700)]
Merge tag 'gfs2-4.11-rc3.fixes' of git://git./linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fix from Bob Peterson:
"This is an emergency patch for 4.11-rc3
The GFS2 developers uncovered a really nasty problem that can lead to
random corruption and kernel panic, much like the last one. Andreas
Gruenbacher wrote a simple one-line patch to fix the problem."
* tag 'gfs2-4.11-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Avoid alignment hole in struct lm_lockname
Linus Torvalds [Wed, 15 Mar 2017 16:26:04 +0000 (09:26 -0700)]
Merge branch 'linus' of git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
- self-test failure of crc32c on powerpc
- regressions of ecb(aes) when used with xts/lrw in s5p-sss
- a number of bugs in the omap RNG driver
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: s5p-sss - Fix spinlock recursion on LRW(AES)
hwrng: omap - Do not access INTMASK_REG on EIP76
hwrng: omap - use devm_clk_get() instead of of_clk_get()
hwrng: omap - write registers after enabling the clock
crypto: s5p-sss - Fix completing crypto request in IRQ handler
crypto: powerpc - Fix initialisation of crc32c context
Liping Zhang [Wed, 15 Mar 2017 14:22:08 +0000 (22:22 +0800)]
netfilter: nft_ct: do cleanup work when NFTA_CT_DIRECTION is invalid
We should jump to invoke __nft_ct_set_destroy() instead of just
return error.
Fixes:
edee4f1e9245 ("netfilter: nft_ct: add zone id set support")
Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Andreas Gruenbacher [Mon, 6 Mar 2017 17:58:42 +0000 (12:58 -0500)]
gfs2: Avoid alignment hole in struct lm_lockname
Commit
88ffbf3e03 switches to using rhashtables for glocks, hashing over
the entire struct lm_lockname instead of its individual fields. On some
architectures, struct lm_lockname contains a hole of uninitialized
memory due to alignment rules, which now leads to incorrect hash values.
Get rid of that hole.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
CC: <stable@vger.kernel.org> #v4.3+
Linus Torvalds [Wed, 15 Mar 2017 04:31:23 +0000 (21:31 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Ensure that mtu is at least IPV6_MIN_MTU in ipv6 VTI tunnel driver,
from Steffen Klassert.
2) Fix crashes when user tries to get_next_key on an LPM bpf map, from
Alexei Starovoitov.
3) Fix detection of VLAN fitlering feature for bnx2x VF devices, from
Michal Schmidt.
4) We can get a divide by zero when TCP socket are morphed into
listening state, fix from Eric Dumazet.
5) Fix socket refcounting bugs in skb_complete_wifi_ack() and
skb_complete_tx_timestamp(). From Eric Dumazet.
6) Use after free in dccp_feat_activate_values(), also from Eric
Dumazet.
7) Like bonding team needs to use ETH_MAX_MTU as netdev->max_mtu, from
Jarod Wilson.
8) Fix use after free in vrf_xmit(), from David Ahern.
9) Don't do UDP Fragmentation Offload on IPComp ipsec packets, from
Alexey Kodanev.
10) Properly check napi_complete_done() return value in order to decide
whether to re-enable IRQs or not in amd-xgbe driver, from Thomas
Lendacky.
11) Fix double free of hwmon device in marvell phy driver, from Andrew
Lunn.
12) Don't crash on malformed netlink attributes in act_connmark, from
Etienne Noss.
13) Don't remove routes with a higher metric in ipv6 ECMP route replace,
from Sabrina Dubroca.
14) Don't write into a cloned SKB in ipv6 fragmentation handling, from
Florian Westphal.
15) Fix routing redirect races in dccp and tcp, basically the ICMP
handler can't modify the socket's cached route in it's locked by the
user at this moment. From Jon Maxwell.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (108 commits)
qed: Enable iSCSI Out-of-Order
qed: Correct out-of-bound access in OOO history
qed: Fix interrupt flags on Rx LL2
qed: Free previous connections when releasing iSCSI
qed: Fix mapping leak on LL2 rx flow
qed: Prevent creation of too-big u32-chains
qed: Align CIDs according to DORQ requirement
mlxsw: reg: Fix SPVMLR max record count
mlxsw: reg: Fix SPVM max record count
net: Resend IGMP memberships upon peer notification.
dccp: fix memory leak during tear-down of unsuccessful connection request
tun: fix premature POLLOUT notification on tun devices
dccp/tcp: fix routing redirect race
ucc/hdlc: fix two little issue
vxlan: fix ovs support
net: use net->count to check whether a netns is alive or not
bridge: drop netfilter fake rtable unconditionally
ipv6: avoid write to a possibly cloned skb
net: wimax/i2400m: fix NULL-deref at probe
isdn/gigaset: fix NULL-deref at probe
...
Linus Torvalds [Tue, 14 Mar 2017 22:11:19 +0000 (15:11 -0700)]
Merge branch 'for-4.11-fixes' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"Three cgroup fixes. Nothing critical:
- the pids controller could trigger suspicious RCU warning
spuriously. Fixed.
- in the debug controller, %p -> %pK to protect kernel pointer
from getting exposed.
- documentation formatting fix"
* 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroups: censor kernel pointer in debug files
cgroup/pids: remove spurious suspicious RCU usage warning
cgroup: Fix indenting in PID controller documentation
Linus Torvalds [Tue, 14 Mar 2017 22:00:43 +0000 (15:00 -0700)]
Merge branch 'for-4.11-fixes' of git://git./linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
"Three libata fixes:
- fix for a circular reference bug in sysfs code which prevented
pata_legacy devices from being released after probe failure, which
in turn prevented devres from releasing the associated resources.
- drop spurious WARN in the command issue path which can be triggered
by a legitimate passthrough command.
- an ahci_qoriq specific fix"
* 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: qoriq: correct the sata ecc setting error
libata: drop WARN from protocol error in ata_sff_qc_issue()
libata: transport: Remove circular dependency at free time
Linus Torvalds [Tue, 14 Mar 2017 21:52:08 +0000 (14:52 -0700)]
Merge branch 'for-4.11-fixes' of git://git./linux/kernel/git/tj/wq
Pull workqueue fix from Tejun Heo:
"If a delayed work is queued with NULL @wq, workqueue code explodes
after the timer expires at which point it's difficult to tell who the
culprit was.
This actually happened and the offender was net/smc this time.
Add an explicit sanity check for it in the queueing path"
* 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: trigger WARN if queue_delayed_work() is called with NULL @wq
Linus Torvalds [Tue, 14 Mar 2017 21:48:50 +0000 (14:48 -0700)]
Merge branch 'for-4.11-fixes' of git://git./linux/kernel/git/tj/percpu
Pull percpu fixes from Tejun Heo:
- the allocation path was updating pcpu_nr_empty_pop_pages without the
required locking which can lead to incorrect handling of empty chunks
(e.g. keeping too many around), which is buggy but shouldn't lead to
critical failures. Fixed by adding the locking
- a trivial patch to drop an unused param from pcpu_get_pages()
* 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: remove unused chunk_alloc parameter from pcpu_get_pages()
percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages
David S. Miller [Tue, 14 Mar 2017 18:37:06 +0000 (11:37 -0700)]
Merge branch 'qed-fixes'
Yuval Mintz says:
====================
qed: Fixes series
This address several different issues in qed.
The more significant portions:
Patch #1 would cause timeout when qedr utilizes the highest
CIDs availble for it [or when future qede adapters would utilize
queues in some constellations].
Patch #4 fixes a leak of mapped addresses; When iommu is enabled,
offloaded storage protocols might eventually run out of resources
and fail to map additional buffers.
Patches #6,#7 were missing in the initial iSCSI infrastructure
submissions, and would hamper qedi's stability when it reaches
out-of-order scenarios.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Mintz, Yuval [Tue, 14 Mar 2017 13:26:04 +0000 (15:26 +0200)]
qed: Enable iSCSI Out-of-Order
Missing in the initial submission, qed fails to propagate qedi's
request to enable OOO to firmware.
Fixes:
fc831825f99e ("qed: Add support for hardware offloaded iSCSI")
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mintz, Yuval [Tue, 14 Mar 2017 13:26:03 +0000 (15:26 +0200)]
qed: Correct out-of-bound access in OOO history
Need to set the number of entries in database, otherwise the logic
would quickly surpass the array.
Fixes:
1d6cff4fca43 ("qed: Add iSCSI out of order packet handling")
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ram Amrani [Tue, 14 Mar 2017 13:26:02 +0000 (15:26 +0200)]
qed: Fix interrupt flags on Rx LL2
Before iterating over the the LL2 Rx ring, the ring's
spinlock is taken via spin_lock_irqsave().
The actual processing of the packet [including handling
by the protocol driver] is done without said lock,
so qed releases the spinlock and re-claims it afterwards.
Problem is that the final spin_lock_irqrestore() at the end
of the iteration uses the original flags saved from the
initial irqsave() instead of the flags from the most recent
irqsave(). So it's possible that the interrupt status would
be incorrect at the end of the processing.
Fixes:
0a7fb11c23c0 ("qed: Add Light L2 support");
CC: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mintz, Yuval [Tue, 14 Mar 2017 13:26:01 +0000 (15:26 +0200)]
qed: Free previous connections when releasing iSCSI
Fixes:
fc831825f99e ("qed: Add support for hardware offloaded iSCSI")
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mintz, Yuval [Tue, 14 Mar 2017 13:26:00 +0000 (15:26 +0200)]
qed: Fix mapping leak on LL2 rx flow
When receiving an Rx LL2 packet, qed fails to unmap the previous buffer.
Fixes:
0a7fb11c23c0 ("qed: Add Light L2 support");
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tomer Tayar [Tue, 14 Mar 2017 13:25:59 +0000 (15:25 +0200)]
qed: Prevent creation of too-big u32-chains
Current Logic would allow the creation of a chain with U32_MAX + 1
elements, when the actual maximum supported by the driver infrastructure
is U32_MAX.
Fixes:
a91eb52abb50 ("qed: Revisit chain implementation")
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ram Amrani [Tue, 14 Mar 2017 13:25:58 +0000 (15:25 +0200)]
qed: Align CIDs according to DORQ requirement
The Doorbell HW block can be configured at a granularity
of 16 x CIDs, so we need to make sure that the actual number
of CIDs configured would be a multiplication of 16.
Today, when RoCE is enabled - given that the number is unaligned,
doorbelling the higher CIDs would fail to reach the firmware and
would eventually timeout.
Fixes:
dbb799c39717 ("qed: Initialize hardware for new protocols")
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 14 Mar 2017 18:35:11 +0000 (11:35 -0700)]
Merge branch 'mlxsw-small-fixes'
Jiri Pirko says:
====================
mlxsw: Couple of fixes
Couple or small fixes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Tue, 14 Mar 2017 13:00:01 +0000 (14:00 +0100)]
mlxsw: reg: Fix SPVMLR max record count
The num_rec field is 8 bit, so the maximal count number is 255.
This fixes vlans learning not being enabled for wider ranges than 255.
Fixes:
a4feea74cd7a ("mlxsw: reg: Add Switch Port VLAN MAC Learning register definition")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>