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877304 Commits (169bf660646afa69967f05f1527f29048d9444eb)

Author SHA1 Message Date
Mahesh Bandewar e4d08bef04 ipvlan: add cond_resched_rcu() while processing muticast backlog
[ Upstream commit e18b353f10 ]

If there are substantial number of slaves created as simulated by
Syzbot, the backlog processing could take much longer and result
into the issue found in the Syzbot report.

INFO: rcu_sched detected stalls on CPUs/tasks:
        (detected by 1, t=10502 jiffies, g=5049, c=5048, q=752)
All QSes seen, last rcu_sched kthread activity 10502 (4294965563-4294955061), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.1  R  running task on cpu   1  10984 11210   3866 0x30020008 179034491270
Call Trace:
 <IRQ>
 [<ffffffff81497163>] _sched_show_task kernel/sched/core.c:8063 [inline]
 [<ffffffff81497163>] _sched_show_task.cold+0x2fd/0x392 kernel/sched/core.c:8030
 [<ffffffff8146a91b>] sched_show_task+0xb/0x10 kernel/sched/core.c:8073
 [<ffffffff815c931b>] print_other_cpu_stall kernel/rcu/tree.c:1577 [inline]
 [<ffffffff815c931b>] check_cpu_stall kernel/rcu/tree.c:1695 [inline]
 [<ffffffff815c931b>] __rcu_pending kernel/rcu/tree.c:3478 [inline]
 [<ffffffff815c931b>] rcu_pending kernel/rcu/tree.c:3540 [inline]
 [<ffffffff815c931b>] rcu_check_callbacks.cold+0xbb4/0xc29 kernel/rcu/tree.c:2876
 [<ffffffff815e3962>] update_process_times+0x32/0x80 kernel/time/timer.c:1635
 [<ffffffff816164f0>] tick_sched_handle+0xa0/0x180 kernel/time/tick-sched.c:161
 [<ffffffff81616ae4>] tick_sched_timer+0x44/0x130 kernel/time/tick-sched.c:1193
 [<ffffffff815e75f7>] __run_hrtimer kernel/time/hrtimer.c:1393 [inline]
 [<ffffffff815e75f7>] __hrtimer_run_queues+0x307/0xd90 kernel/time/hrtimer.c:1455
 [<ffffffff815e90ea>] hrtimer_interrupt+0x2ea/0x730 kernel/time/hrtimer.c:1513
 [<ffffffff844050f4>] local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1031 [inline]
 [<ffffffff844050f4>] smp_apic_timer_interrupt+0x144/0x5e0 arch/x86/kernel/apic/apic.c:1056
 [<ffffffff84401cbe>] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:778
RIP: 0010:do_raw_read_lock+0x22/0x80 kernel/locking/spinlock_debug.c:153
RSP: 0018:ffff8801dad07ab8 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff12
RAX: 0000000000000000 RBX: ffff8801c4135680 RCX: 0000000000000000
RDX: 1ffff10038826afe RSI: ffff88019d816bb8 RDI: ffff8801c41357f0
RBP: ffff8801dad07ac0 R08: 0000000000004b15 R09: 0000000000310273
R10: ffff88019d816bb8 R11: 0000000000000001 R12: ffff8801c41357e8
R13: 0000000000000000 R14: ffff8801cfb19850 R15: ffff8801cfb198b0
 [<ffffffff8101460e>] __raw_read_lock_bh include/linux/rwlock_api_smp.h:177 [inline]
 [<ffffffff8101460e>] _raw_read_lock_bh+0x3e/0x50 kernel/locking/spinlock.c:240
 [<ffffffff840d78ca>] ipv6_chk_mcast_addr+0x11a/0x6f0 net/ipv6/mcast.c:1006
 [<ffffffff84023439>] ip6_mc_input+0x319/0x8e0 net/ipv6/ip6_input.c:482
 [<ffffffff840211c8>] dst_input include/net/dst.h:449 [inline]
 [<ffffffff840211c8>] ip6_rcv_finish+0x408/0x610 net/ipv6/ip6_input.c:78
 [<ffffffff840214de>] NF_HOOK include/linux/netfilter.h:292 [inline]
 [<ffffffff840214de>] NF_HOOK include/linux/netfilter.h:286 [inline]
 [<ffffffff840214de>] ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:278
 [<ffffffff83a29efa>] __netif_receive_skb_one_core+0x12a/0x1f0 net/core/dev.c:5303
 [<ffffffff83a2a15c>] __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:5417
 [<ffffffff83a2f536>] process_backlog+0x216/0x6c0 net/core/dev.c:6243
 [<ffffffff83a30d1b>] napi_poll net/core/dev.c:6680 [inline]
 [<ffffffff83a30d1b>] net_rx_action+0x47b/0xfb0 net/core/dev.c:6748
 [<ffffffff846002c8>] __do_softirq+0x2c8/0x99a kernel/softirq.c:317
 [<ffffffff813e656a>] invoke_softirq kernel/softirq.c:399 [inline]
 [<ffffffff813e656a>] irq_exit+0x16a/0x1a0 kernel/softirq.c:439
 [<ffffffff84405115>] exiting_irq arch/x86/include/asm/apic.h:561 [inline]
 [<ffffffff84405115>] smp_apic_timer_interrupt+0x165/0x5e0 arch/x86/kernel/apic/apic.c:1058
 [<ffffffff84401cbe>] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:778
 </IRQ>
RIP: 0010:__sanitizer_cov_trace_pc+0x26/0x50 kernel/kcov.c:102
RSP: 0018:ffff880196033bd8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff12
RAX: ffff88019d8161c0 RBX: 00000000ffffffff RCX: ffffc90003501000
RDX: 0000000000000002 RSI: ffffffff816236d1 RDI: 0000000000000005
RBP: ffff880196033bd8 R08: ffff88019d8161c0 R09: 0000000000000000
R10: 1ffff10032c067f0 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000000
 [<ffffffff816236d1>] do_futex+0x151/0x1d50 kernel/futex.c:3548
 [<ffffffff816260f0>] C_SYSC_futex kernel/futex_compat.c:201 [inline]
 [<ffffffff816260f0>] compat_SyS_futex+0x270/0x3b0 kernel/futex_compat.c:175
 [<ffffffff8101da17>] do_syscall_32_irqs_on arch/x86/entry/common.c:353 [inline]
 [<ffffffff8101da17>] do_fast_syscall_32+0x357/0xe1c arch/x86/entry/common.c:415
 [<ffffffff84401a9b>] entry_SYSENTER_compat+0x8b/0x9d arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f23c69
RSP: 002b:00000000f5d1f12c EFLAGS: 00000282 ORIG_RAX: 00000000000000f0
RAX: ffffffffffffffda RBX: 000000000816af88 RCX: 0000000000000080
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000816af8c
RBP: 00000000f5d1f228 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu_sched kthread starved for 10502 jiffies! g5049 c5048 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1
rcu_sched       R  running task on cpu   1  13048     8      2 0x90000000 179099587640
Call Trace:
 [<ffffffff8147321f>] context_switch+0x60f/0xa60 kernel/sched/core.c:3209
 [<ffffffff8100095a>] __schedule+0x5aa/0x1da0 kernel/sched/core.c:3934
 [<ffffffff810021df>] schedule+0x8f/0x1b0 kernel/sched/core.c:4011
 [<ffffffff8101116d>] schedule_timeout+0x50d/0xee0 kernel/time/timer.c:1803
 [<ffffffff815c13f1>] rcu_gp_kthread+0xda1/0x3b50 kernel/rcu/tree.c:2327
 [<ffffffff8144b318>] kthread+0x348/0x420 kernel/kthread.c:246
 [<ffffffff84400266>] ret_from_fork+0x56/0x70 arch/x86/entry/entry_64.S:393

Fixes: ba35f8588f (“ipvlan: Defer multicast / broadcast processing to a work-queue”)
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:38 +01:00
Hangbin Liu 1f905985fe ipv6/addrconf: call ipv6_mc_up() for non-Ethernet interface
[ Upstream commit 60380488e4 ]

Rafał found an issue that for non-Ethernet interface, if we down and up
frequently, the memory will be consumed slowly.

The reason is we add allnodes/allrouters addressed in multicast list in
ipv6_add_dev(). When link down, we call ipv6_mc_down(), store all multicast
addresses via mld_add_delrec(). But when link up, we don't call ipv6_mc_up()
for non-Ethernet interface to remove the addresses. This makes idev->mc_tomb
getting bigger and bigger. The call stack looks like:

addrconf_notify(NETDEV_REGISTER)
	ipv6_add_dev
		ipv6_dev_mc_inc(ff01::1)
		ipv6_dev_mc_inc(ff02::1)
		ipv6_dev_mc_inc(ff02::2)

addrconf_notify(NETDEV_UP)
	addrconf_dev_config
		/* Alas, we support only Ethernet autoconfiguration. */
		return;

addrconf_notify(NETDEV_DOWN)
	addrconf_ifdown
		ipv6_mc_down
			igmp6_group_dropped(ff02::2)
				mld_add_delrec(ff02::2)
			igmp6_group_dropped(ff02::1)
			igmp6_group_dropped(ff01::1)

After investigating, I can't found a rule to disable multicast on
non-Ethernet interface. In RFC2460, the link could be Ethernet, PPP, ATM,
tunnels, etc. In IPv4, it doesn't check the dev type when calls ip_mc_up()
in inetdev_event(). Even for IPv6, we don't check the dev type and call
ipv6_add_dev(), ipv6_dev_mc_inc() after register device.

So I think it's OK to fix this memory consumer by calling ipv6_mc_up() for
non-Ethernet interface.

v2: Also check IFF_MULTICAST flag to make sure the interface supports
    multicast

Reported-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Rafał Miłecki <zajec5@gmail.com>
Fixes: 74235a25c6 ("[IPV6] addrconf: Fix IPv6 on tuntap tunnels")
Fixes: 1666d49e1d ("mld: do not remove mld souce list info when set link down")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:38 +01:00
Dmitry Yakunin 8be8c45554 inet_diag: return classid for all socket types
[ Upstream commit 83f73c5bb7 ]

In commit 1ec17dbd90 ("inet_diag: fix reporting cgroup classid and
fallback to priority") croup classid reporting was fixed. But this works
only for TCP sockets because for other socket types icsk parameter can
be NULL and classid code path is skipped. This change moves classid
handling to inet_diag_msg_attrs_fill() function.

Also inet_diag_msg_attrs_size() helper was added and addends in
nlmsg_new() were reordered to save order from inet_sk_diag_fill().

Fixes: 1ec17dbd90 ("inet_diag: fix reporting cgroup classid and fallback to priority")
Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:38 +01:00
Eric Dumazet aece82f5de gre: fix uninit-value in __iptunnel_pull_header
[ Upstream commit 17c25cafd4 ]

syzbot found an interesting case of the kernel reading
an uninit-value [1]

Problem is in the handling of ETH_P_WCCP in gre_parse_header()

We look at the byte following GRE options to eventually decide
if the options are four bytes longer.

Use skb_header_pointer() to not pull bytes if we found
that no more bytes were needed.

All callers of gre_parse_header() are properly using pskb_may_pull()
anyway before proceeding to next header.

[1]
BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2303 [inline]
BUG: KMSAN: uninit-value in __iptunnel_pull_header+0x30c/0xbd0 net/ipv4/ip_tunnel_core.c:94
CPU: 1 PID: 11784 Comm: syz-executor940 Not tainted 5.6.0-rc2-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+0x1c9/0x220 lib/dump_stack.c:118
 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215
 pskb_may_pull include/linux/skbuff.h:2303 [inline]
 __iptunnel_pull_header+0x30c/0xbd0 net/ipv4/ip_tunnel_core.c:94
 iptunnel_pull_header include/net/ip_tunnels.h:411 [inline]
 gre_rcv+0x15e/0x19c0 net/ipv6/ip6_gre.c:606
 ip6_protocol_deliver_rcu+0x181b/0x22c0 net/ipv6/ip6_input.c:432
 ip6_input_finish net/ipv6/ip6_input.c:473 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ip6_input net/ipv6/ip6_input.c:482 [inline]
 ip6_mc_input+0xdf2/0x1460 net/ipv6/ip6_input.c:576
 dst_input include/net/dst.h:442 [inline]
 ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ipv6_rcv+0x683/0x710 net/ipv6/ip6_input.c:306
 __netif_receive_skb_one_core net/core/dev.c:5198 [inline]
 __netif_receive_skb net/core/dev.c:5312 [inline]
 netif_receive_skb_internal net/core/dev.c:5402 [inline]
 netif_receive_skb+0x66b/0xf20 net/core/dev.c:5461
 tun_rx_batched include/linux/skbuff.h:4321 [inline]
 tun_get_user+0x6aef/0x6f60 drivers/net/tun.c:1997
 tun_chr_write_iter+0x1f2/0x360 drivers/net/tun.c:2026
 call_write_iter include/linux/fs.h:1901 [inline]
 new_sync_write fs/read_write.c:483 [inline]
 __vfs_write+0xa5a/0xca0 fs/read_write.c:496
 vfs_write+0x44a/0x8f0 fs/read_write.c:558
 ksys_write+0x267/0x450 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __ia32_sys_write+0xdb/0x120 fs/read_write.c:620
 do_syscall_32_irqs_on arch/x86/entry/common.c:339 [inline]
 do_fast_syscall_32+0x3c7/0x6e0 arch/x86/entry/common.c:410
 entry_SYSENTER_compat+0x68/0x77 arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f62d99
Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000fffedb2c EFLAGS: 00000217 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020002580
RDX: 0000000000000fca RSI: 0000000000000036 RDI: 0000000000000004
RBP: 0000000000008914 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Uninit was created at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline]
 kmsan_internal_poison_shadow+0x66/0xd0 mm/kmsan/kmsan.c:127
 kmsan_slab_alloc+0x8a/0xe0 mm/kmsan/kmsan_hooks.c:82
 slab_alloc_node mm/slub.c:2793 [inline]
 __kmalloc_node_track_caller+0xb40/0x1200 mm/slub.c:4401
 __kmalloc_reserve net/core/skbuff.c:142 [inline]
 __alloc_skb+0x2fd/0xac0 net/core/skbuff.c:210
 alloc_skb include/linux/skbuff.h:1051 [inline]
 alloc_skb_with_frags+0x18c/0xa70 net/core/skbuff.c:5766
 sock_alloc_send_pskb+0xada/0xc60 net/core/sock.c:2242
 tun_alloc_skb drivers/net/tun.c:1529 [inline]
 tun_get_user+0x10ae/0x6f60 drivers/net/tun.c:1843
 tun_chr_write_iter+0x1f2/0x360 drivers/net/tun.c:2026
 call_write_iter include/linux/fs.h:1901 [inline]
 new_sync_write fs/read_write.c:483 [inline]
 __vfs_write+0xa5a/0xca0 fs/read_write.c:496
 vfs_write+0x44a/0x8f0 fs/read_write.c:558
 ksys_write+0x267/0x450 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __ia32_sys_write+0xdb/0x120 fs/read_write.c:620
 do_syscall_32_irqs_on arch/x86/entry/common.c:339 [inline]
 do_fast_syscall_32+0x3c7/0x6e0 arch/x86/entry/common.c:410
 entry_SYSENTER_compat+0x68/0x77 arch/x86/entry/entry_64_compat.S:139

Fixes: 95f5c64c3c ("gre: Move utility functions to common headers")
Fixes: c544193214 ("GRE: Refactor GRE tunneling code.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:38 +01:00
Dmitry Yakunin 0a062dd0d4 cgroup, netclassid: periodically release file_lock on classid updating
[ Upstream commit 018d26fcd1 ]

In our production environment we have faced with problem that updating
classid in cgroup with heavy tasks cause long freeze of the file tables
in this tasks. By heavy tasks we understand tasks with many threads and
opened sockets (e.g. balancers). This freeze leads to an increase number
of client timeouts.

This patch implements following logic to fix this issue:
аfter iterating 1000 file descriptors file table lock will be released
thus providing a time gap for socket creation/deletion.

Now update is non atomic and socket may be skipped using calls:

dup2(oldfd, newfd);
close(oldfd);

But this case is not typical. Moreover before this patch skip is possible
too by hiding socket fd in unix socket buffer.

New sockets will be allocated with updated classid because cgroup state
is updated before start of the file descriptors iteration.

So in common cases this patch has no side effects.

Signed-off-by: Dmitry Yakunin <zeil@yandex-team.ru>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:38 +01:00
Kailang Yang 8d22f41473 ALSA: hda/realtek - Fixed one of HP ALC671 platform Headset Mic supported
commit f2adbae0cb upstream.

HP want to keep BIOS verb table for release platform.
So, it need to add 0x19 pin for quirk.

Fixes: 5af29028fd ("ALSA: hda/realtek - Add Headset Mic supported for HP cPC")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Link: https://lore.kernel.org/r/74636ccb700a4cbda24c58a99dc430ce@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:38 +01:00
Kailang Yang 986af74c63 ALSA: hda/realtek - Add Headset Mic supported for HP cPC
commit 5af29028fd upstream.

HP ALC671 need to support Headset Mic.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Link: https://lore.kernel.org/r/06a9d2b176e14706976d6584cbe2d92a@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:37 +01:00
Takashi Iwai effe2041c3 ALSA: hda/realtek - More constifications
commit 6b0f95c49d upstream.

Apply const prefix to each coef table array.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:37 +01:00
Nathan Chancellor 8f310017aa virtio_balloon: Adjust label in virtballoon_probe
commit 6ae4edab2f upstream.

Clang warns when CONFIG_BALLOON_COMPACTION is unset:

../drivers/virtio/virtio_balloon.c:963:1: warning: unused label
'out_del_vqs' [-Wunused-label]
out_del_vqs:
^~~~~~~~~~~~
1 warning generated.

Move the label within the preprocessor block since it is only used when
CONFIG_BALLOON_COMPACTION is set.

Fixes: 1ad6f58ea9 ("virtio_balloon: Fix memory leaks on errors in virtballoon_probe()")
Link: https://github.com/ClangBuiltLinux/linux/issues/886
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20200216004039.23464-1-natechancellor@gmail.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:37 +01:00
Greg Kroah-Hartman 18fe53f6df Linux 5.4.25 2020-03-12 13:00:32 +01:00
Stephen Rothwell 564f7c2b56 drm/virtio: module_param_named() requires linux/moduleparam.h
commit b0138364da upstream.

Fixes: 3e93bc2a58 ("drm/virtio: make resource id workaround runtime switchable.")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: http://patchwork.freedesktop.org/patch/msgid/20190828185516.22b03da8@canb.auug.org.au
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:32 +01:00
Guo Ren 09a8dd779e csky: Implement copy_thread_tls
commit 0b9f386c4b upstream.

This is required for clone3 which passes the TLS value through a
struct rather than a register.

Cc: Amanieu d'Antras <amanieu@gmail.com>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:32 +01:00
Paolo Valente e28c9b3caf block, bfq: remove ifdefs from around gets/puts of bfq groups
commit 4d8340d0d4 upstream.

ifdefs around gets and puts of bfq groups reduce readability, remove them.

Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:32 +01:00
Paolo Valente 92ed51e651 block, bfq: get a ref to a group when adding it to a service tree
commit db37a34c56 upstream.

BFQ schedules generic entities, which may represent either bfq_queues
or groups of bfq_queues. When an entity is inserted into a service
tree, a reference must be taken, to make sure that the entity does not
disappear while still referred in the tree. Unfortunately, such a
reference is mistakenly taken only if the entity represents a
bfq_queue. This commit takes a reference also in case the entity
represents a group.

Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Chris Evich <cevich@redhat.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:32 +01:00
Jason A. Donenfeld e657b1f6b9 efi: READ_ONCE rng seed size before munmap
commit be36f9e751 upstream.

This function is consistent with using size instead of seed->size
(except for one place that this patch fixes), but it reads seed->size
without using READ_ONCE, which means the compiler might still do
something unwanted. So, this commit simply adds the READ_ONCE
wrapper.

Fixes: 636259880a ("efi: Add support for seeding the RNG from a UEFI ...")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200217123354.21140-1-Jason@zx2c4.com
Link: https://lore.kernel.org/r/20200221084849.26878-5-ardb@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:31 +01:00
Ard Biesheuvel cca130fc00 efi/x86: Handle by-ref arguments covering multiple pages in mixed mode
commit 8319e9d5ad upstream.

The mixed mode runtime wrappers are fragile when it comes to how the
memory referred to by its pointer arguments are laid out in memory, due
to the fact that it translates these addresses to physical addresses that
the runtime services can dereference when running in 1:1 mode. Since
vmalloc'ed pages (including the vmap'ed stack) are not contiguous in the
physical address space, this scheme only works if the referenced memory
objects do not cross page boundaries.

Currently, the mixed mode runtime service wrappers require that all by-ref
arguments that live in the vmalloc space have a size that is a power of 2,
and are aligned to that same value. While this is a sensible way to
construct an object that is guaranteed not to cross a page boundary, it is
overly strict when it comes to checking whether a given object violates
this requirement, as we can simply take the physical address of the first
and the last byte, and verify that they point into the same physical page.

When this check fails, we emit a WARN(), but then simply proceed with the
call, which could cause data corruption if the next physical page belongs
to a mapping that is entirely unrelated.

Given that with vmap'ed stacks, this condition is much more likely to
trigger, let's relax the condition a bit, but fail the runtime service
call if it does trigger.

Fixes: f6697df36b ("x86/efi: Prevent mixed mode boot corruption with CONFIG_VMAP_STACK=y")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200221084849.26878-4-ardb@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:31 +01:00
Ard Biesheuvel 61a7f1e13b efi/x86: Align GUIDs to their size in the mixed mode runtime wrapper
commit 63056e8b5e upstream.

Hans reports that his mixed mode systems running v5.6-rc1 kernels hit
the WARN_ON() in virt_to_phys_or_null_size(), caused by the fact that
efi_guid_t objects on the vmap'ed stack happen to be misaligned with
respect to their sizes. As a quick (i.e., backportable) fix, copy GUID
pointer arguments to the local stack into a buffer that is naturally
aligned to its size, so that it is guaranteed to cover only one
physical page.

Note that on x86, we cannot rely on the stack pointer being aligned
the way the compiler expects, so we need to allocate an 8-byte aligned
buffer of sufficient size, and copy the GUID into that buffer at an
offset that is aligned to 16 bytes.

Fixes: f6697df36b ("x86/efi: Prevent mixed mode boot corruption with CONFIG_VMAP_STACK=y")
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Cc: linux-efi@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200221084849.26878-2-ardb@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:31 +01:00
Desnes A. Nunes do Rosario da44902fcf powerpc: fix hardware PMU exception bug on PowerVM compatibility mode systems
commit fc37a1632d upstream.

PowerVM systems running compatibility mode on a few Power8 revisions are
still vulnerable to the hardware defect that loses PMU exceptions arriving
prior to a context switch.

The software fix for this issue is enabled through the CPU_FTR_PMAO_BUG
cpu_feature bit, nevertheless this bit also needs to be set for PowerVM
compatibility mode systems.

Fixes: 68f2f0d431 ("powerpc: Add a cpu feature CPU_FTR_PMAO_BUG")
Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.ibm.com>
Reviewed-by: Leonardo Bras <leonardo@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200227134715.9715-1-desnesn@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:31 +01:00
Sherry Sun 90335d6681 EDAC/synopsys: Do not print an error with back-to-back snprintf() calls
commit dfc6014e3b upstream.

handle_error() currently calls snprintf() a couple of times in
succession to output the message for a CE/UE, therefore overwriting each
part of the message which was formatted with the previous snprintf()
call. As a result, only the part of the message from the last snprintf()
call will be printed.

The simplest and most effective way to fix this problem is to combine
the whole string into one which to supply to a single snprintf() call.

 [ bp: Massage. ]

Fixes: b500b4a029 ("EDAC, synopsys: Add ECC support for ZynqMP DDR controller")
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: James Morse <james.morse@arm.com>
Cc: Manish Narani <manish.narani@xilinx.com>
Link: https://lkml.kernel.org/r/1582792452-32575-1-git-send-email-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:31 +01:00
Tony Lindgren 956ba569cc bus: ti-sysc: Fix 1-wire reset quirk
commit aec551c7a0 upstream.

Because of the i2c quirk we have the reset quirks named in a confusing
way. Let's fix the 1-wire quirk accordinlyg. Then let's switch to using
better naming later on.

Fixes: 4e23be473e ("bus: ti-sysc: Add support for module specific reset quirks")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:31 +01:00
Christian Hewitt 8937a74575 arm64: dts: meson: fix gxm-khadas-vim2 wifi
commit 146033562e upstream.

before

[6.418252] brcmfmac: F1 signature read @0x18000000=0x17224356
[6.435663] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4356-sdio for chip BCM4356/2
[6.551259] brcmfmac: brcmf_sdiod_ramrw: membytes transfer failed
[6.551275] brcmfmac: brcmf_sdio_verifymemory: error -84 on reading 2048 membytes at 0x00184000
[6.551352] brcmfmac: brcmf_sdio_download_firmware: dongle image file download failed

after

[6.657165] brcmfmac: F1 signature read @0x18000000=0x17224356
[6.660807] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4356-sdio for chip BCM4356/2
[6.918643] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4356-sdio for chip BCM4356/2
[6.918734] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[6.922724] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4356/2 wl0: Jun 16 2015 14:25:06 version 7.35.184.r1 (TOB) (r559293) FWID 01-b22ae69c

Fixes: adc52bf7ef ("arm64: dts: meson: fix mmc v2 chips max frequencies")
Suggested-by: Art Nikpal <email2tema@gmail.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/1582212790-11402-1-git-send-email-christianshewitt@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:31 +01:00
Dan Carpenter 5293e17978 dmaengine: coh901318: Fix a double lock bug in dma_tc_handle()
commit 36d5d22090 upstream.

The caller is already holding the lock so this will deadlock.

Fixes: 0b58828c92 ("DMAENGINE: COH 901 318 remove irq counting")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200217144050.3i4ymbytogod4ijn@kili.mountain
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:30 +01:00
Cong Wang 08d67499d2 dma-buf: free dmabuf->name in dma_buf_release()
commit d1f3722643 upstream.

dma-buf name can be set via DMA_BUF_SET_NAME ioctl, but once set
it never gets freed.

Free it in dma_buf_release().

Fixes: bb2bb90304 ("dma-buf: add DMA_BUF_SET_NAME ioctls")
Reported-by: syzbot+b2098bc44728a4efb3e9@syzkaller.appspotmail.com
Cc: Greg Hackmann <ghackmann@google.com>
Cc: Chenbo Feng <fengc@google.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Chenbo Feng <fengc@google.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191227063204.5813-1-xiyou.wangcong@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:30 +01:00
Dan Carpenter 709c6990ae hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT()
commit 44f2f88290 upstream.

This is only called from adt7462_update_device().  The caller expects it
to return zero on error.  I fixed a similar issue earlier in commit
a4bf06d58f ("hwmon: (adt7462) ADT7462_REG_VOLT_MAX() should return 0")
but I missed this one.

Fixes: c0b4e3ab0c ("adt7462: new hwmon driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Link: https://lore.kernel.org/r/20200303101608.kqjwfcazu2ylhi2a@kili.mountain
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:30 +01:00
Oleksandr Suvorov 61f64d9de2 ARM: dts: imx7-colibri: Fix frequency for sd/mmc
commit 2773fe1d31 upstream.

SD/MMC on Colibri iMX7S/D modules successfully support
200Mhz frequency in HS200 mode.

Removing the unnecessary max-frequency limit significantly
increases the performance:

== before fix ====
root@colibri-imx7-emmc:~# hdparm -t /dev/mmcblk0
/dev/mmcblk0:
 Timing buffered disk reads: 252 MB in  3.02 seconds =  83.54 MB/sec
==================

=== after fix ====
root@colibri-imx7-emmc:~# hdparm -t /dev/mmcblk0
/dev/mmcblk0:
 Timing buffered disk reads: 408 MB in  3.00 seconds = 135.94 MB/sec
==================

Fixes: f928a4a377 ("ARM: dts: imx7: add Toradex Colibri iMX7D 1GB (eMMC) support")
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:30 +01:00
Suman Anna 1439f05ce9 ARM: dts: dra7xx-clocks: Fixup IPU1 mux clock parent source
commit 78722d37b2 upstream.

The IPU1 functional clock is the output of a mux clock (represented
by ipu1_gfclk_mux previously) and the clock source for this has been
updated to be sourced from dpll_core_h22x2_ck in commit 39879c7d96
("ARM: dts: dra7xx-clocks: Source IPU1 functional clock from CORE DPLL").
ipu1_gfclk_mux is an obsolete clock now with the clkctrl conversion,
and this clock source parenting is lost during the new clkctrl layout
conversion.

Remove this stale clock and fix up the clock source for this mux
clock using the latest equivalent clkctrl clock. This restores the
previous logic and ensures that the IPU1 continues to run at the
same frequency of IPU2 and independent of the ABE DPLL.

Fixes: b5f8ffbb6f ("ARM: dts: dra7: convert to use new clkctrl layout")
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:30 +01:00
Suman Anna 9113989a57 ARM: dts: am437x-idk-evm: Fix incorrect OPP node names
commit 31623468be upstream.

The commit 337c6c9a69 ("ARM: dts: am437x-idk-evm: Disable
OPP50 for MPU") adjusts couple of OPP nodes defined in the
common am4372.dtsi file, but used outdated node names. This
results in these getting treated as new OPP nodes with missing
properties.

Fix this properly by using the correct node names as updated in
commit b9cb2ba718 ("ARM: dts: Use - instead of @ for DT OPP
entries for TI SoCs").

Reported-by: Roger Quadros <rogerq@ti.com>
Fixes: 337c6c9a69 ("ARM: dts: am437x-idk-evm: Disable OPP50 for MPU")
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:30 +01:00
Ahmad Fatoum dc06a09777 ARM: imx: build v7_cpu_resume() unconditionally
commit 512a928aff upstream.

This function is not only needed by the platform suspend code, but is also
reused as the CPU resume function when the ARM cores can be powered down
completely in deep idle, which is the case on i.MX6SX and i.MX6UL(L).

Providing the static inline stub whenever CONFIG_SUSPEND is disabled means
that those platforms will hang on resume from cpuidle if suspend is disabled.

So there are two problems:

  - The static inline stub masks the linker error
  - The function is not available where needed

Fix both by just building the function unconditionally, when
CONFIG_SOC_IMX6 is enabled. The actual code is three instructions long,
so it's arguably ok to just leave it in for all i.MX6 kernel configurations.

Fixes: 05136f0897 ("ARM: imx: support arm power off in cpuidle for i.mx6sx")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:30 +01:00
Dennis Dalessandro dc04fb60d7 IB/hfi1, qib: Ensure RCU is locked when accessing list
commit 817a68a658 upstream.

The packet handling function, specifically the iteration of the qp list
for mad packet processing misses locking RCU before running through the
list. Not only is this incorrect, but the list_for_each_entry_rcu() call
can not be called with a conditional check for lock dependency. Remedy
this by invoking the rcu lock and unlock around the critical section.

This brings MAD packet processing in line with what is done for non-MAD
packets.

Fixes: 7724105686 ("IB/hfi1: add driver files")
Link: https://lore.kernel.org/r/20200225195445.140896.41873.stgit@awfm-01.aw.intel.com
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:30 +01:00
Jason Gunthorpe 3286ef3a16 RMDA/cm: Fix missing ib_cm_destroy_id() in ib_cm_insert_listen()
commit c14dfddbd8 upstream.

The algorithm pre-allocates a cm_id since allocation cannot be done while
holding the cm.lock spinlock, however it doesn't free it on one error
path, leading to a memory leak.

Fixes: 067b171b86 ("IB/cm: Share listening CM IDs")
Link: https://lore.kernel.org/r/20200221152023.GA8680@ziepe.ca
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:29 +01:00
Fabrice Gasnier 3d5d75f8c2 regulator: stm32-vrefbuf: fix a possible overshoot when re-enabling
commit 02fbabd5f4 upstream.

There maybe an overshoot, when disabling, then re-enabling vrefbuf
too quickly. VREFBUF is used by ADC/DAC on some boards. When re-enabling
too quickly, an overshoot on the reference voltage make the conversions
inaccurate for a short period of time.
- Don't put the VREFBUF in HiZ when disabling, to force an active
discharge.
- Enforce a 1ms OFF/ON delay

Fixes: 0cdbf481e9 ("regulator: Add support for stm32-vrefbuf")

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Message-Id: <1583312132-20932-1-git-send-email-fabrice.gasnier@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:29 +01:00
Maor Gottlieb baec58de4a RDMA/core: Fix protection fault in ib_mr_pool_destroy
commit e38b55ea04 upstream.

Fix NULL pointer dereference in the error flow of ib_create_qp_user
when accessing to uninitialized list pointers - rdma_mrs and sig_mrs.
The following crash from syzkaller revealed it.

  kasan: GPF could be caused by NULL-ptr deref or user memory access
  general protection fault: 0000 [#1] SMP KASAN PTI
  CPU: 1 PID: 23167 Comm: syz-executor.1 Not tainted 5.5.0-rc5 #2
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
  rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
  RIP: 0010:ib_mr_pool_destroy+0x81/0x1f0
  Code: 00 00 fc ff df 49 c1 ec 03 4d 01 fc e8 a8 ea 72 fe 41 80 3c 24 00
  0f 85 62 01 00 00 48 8b 13 48 89 d6 4c 8d 6a c8 48 c1 ee 03 <42> 80 3c
  3e 00 0f 85 34 01 00 00 48 8d 7a 08 4c 8b 02 48 89 fe 48
  RSP: 0018:ffffc9000951f8b0 EFLAGS: 00010046
  RAX: 0000000000040000 RBX: ffff88810f268038 RCX: ffffffff82c41628
  RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000951f850
  RBP: ffff88810f268020 R08: 0000000000000004 R09: fffff520012a3f0a
  R10: 0000000000000001 R11: fffff520012a3f0a R12: ffffed1021e4d007
  R13: ffffffffffffffc8 R14: 0000000000000246 R15: dffffc0000000000
  FS:  00007f54bc788700(0000) GS:ffff88811b100000(0000)
  knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000000 CR3: 0000000116920002 CR4: 0000000000360ee0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Call Trace:
   rdma_rw_cleanup_mrs+0x15/0x30
   ib_destroy_qp_user+0x674/0x7d0
   ib_create_qp_user+0xb01/0x11c0
   create_qp+0x1517/0x2130
   ib_uverbs_create_qp+0x13e/0x190
   ib_uverbs_write+0xaa5/0xdf0
   __vfs_write+0x7c/0x100
   vfs_write+0x168/0x4a0
   ksys_write+0xc8/0x200
   do_syscall_64+0x9c/0x390
   entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x465b49
  Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
  RSP: 002b:00007f54bc787c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
  RAX: ffffffffffffffda RBX: 000000000073bf00 RCX: 0000000000465b49
  RDX: 0000000000000040 RSI: 0000000020000540 RDI: 0000000000000003
  RBP: 00007f54bc787c70 R08: 0000000000000000 R09: 0000000000000000
  R10: 0000000000000000 R11: 0000000000000246 R12: 00007f54bc7886bc
  R13: 00000000004ca2ec R14: 000000000070ded0 R15: 0000000000000005

Fixes: a060b5629a ("IB/core: generic RDMA READ/WRITE API")
Link: https://lore.kernel.org/r/20200227112708.93023-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:29 +01:00
Bernard Metzler 785823b3b2 RDMA/iwcm: Fix iwcm work deallocation
commit 810dbc6908 upstream.

The dealloc_work_entries() function must update the work_free_list pointer
while freeing its entries, since potentially called again on same list. A
second iteration of the work list caused system crash. This happens, if
work allocation fails during cma_iw_listen() and free_cm_id() tries to
free the list again during cleanup.

Fixes: 922a8e9fb2 ("RDMA: iWARP Connection Manager.")
Link: https://lore.kernel.org/r/20200302181614.17042-1-bmt@zurich.ibm.com
Reported-by: syzbot+cb0c054eabfba4342146@syzkaller.appspotmail.com
Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:29 +01:00
Bernard Metzler a793097d7c RDMA/siw: Fix failure handling during device creation
commit 12e5eef0f4 upstream.

A failing call to ib_device_set_netdev() during device creation caused
system crash due to xa_destroy of uninitialized xarray hit by device
deallocation. Fixed by moving xarray initialization before potential
device deallocation.

Fixes: bdcf26bf9b ("rdma/siw: network and RDMA core interface")
Link: https://lore.kernel.org/r/20200302155814.9896-1-bmt@zurich.ibm.com
Reported-by: syzbot+2e80962bedd9559fe0b3@syzkaller.appspotmail.com
Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:29 +01:00
Mark Zhang 10faa91ce4 RDMA/nldev: Fix crash when set a QP to a new counter but QPN is missing
commit 78f34a16c2 upstream.

This fixes the kernel crash when a RDMA_NLDEV_CMD_STAT_SET command is
received, but the QP number parameter is not available.

  iwpm_register_pid: Unable to send a nlmsg (client = 2)
  infiniband syz1: RDMA CMA: cma_listen_on_dev, error -98
  general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
  KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
  CPU: 0 PID: 9754 Comm: syz-executor069 Not tainted 5.6.0-rc2-syzkaller #0
  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  RIP: 0010:nla_get_u32 include/net/netlink.h:1474 [inline]
  RIP: 0010:nldev_stat_set_doit+0x63c/0xb70 drivers/infiniband/core/nldev.c:1760
  Code: fc 01 0f 84 58 03 00 00 e8 41 83 bf fb 4c 8b a3 58 fd ff ff 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 6d
  RSP: 0018:ffffc900068bf350 EFLAGS: 00010247
  RAX: dffffc0000000000 RBX: ffffc900068bf728 RCX: ffffffff85b60470
  RDX: 0000000000000000 RSI: ffffffff85b6047f RDI: 0000000000000004
  RBP: ffffc900068bf750 R08: ffff88808c3ee140 R09: ffff8880a25e6010
  R10: ffffed10144bcddc R11: ffff8880a25e6ee3 R12: 0000000000000000
  R13: ffff88809acb0000 R14: ffff888092a42c80 R15: 000000009ef2e29a
  FS:  0000000001ff0880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007f4733e34000 CR3: 00000000a9b27000 CR4: 00000000001406f0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Call Trace:
    rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:195 [inline]
    rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
    rdma_nl_rcv+0x5d9/0x980 drivers/infiniband/core/netlink.c:259
    netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
    netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1329
    netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1918
    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: 0033:0x4403d9
  Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
  RSP: 002b:00007ffc0efbc5c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
  RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403d9
  RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004
  RBP: 00000000006ca018 R08: 0000000000000008 R09: 00000000004002c8
  R10: 000000000000004a R11: 0000000000000246 R12: 0000000000401c60
  R13: 0000000000401cf0 R14: 0000000000000000 R15: 0000000000000000

Fixes: b389327df9 ("RDMA/nldev: Allow counter manual mode configration through RDMA netlink")
Link: https://lore.kernel.org/r/20200227125111.99142-1-leon@kernel.org
Reported-by: syzbot+bd4af81bc51ee0283445@syzkaller.appspotmail.com
Signed-off-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:29 +01:00
Max Gurtovoy 4a2acf74a8 RDMA/rw: Fix error flow during RDMA context initialization
commit 6affca140c upstream.

In case the SGL was mapped for P2P DMA operation, we must unmap it using
pci_p2pdma_unmap_sg during the error unwind of rdma_rw_ctx_init()

Fixes: 7f73eac3a7 ("PCI/P2PDMA: Introduce pci_p2pdma_unmap_sg()")
Link: https://lore.kernel.org/r/20200220100819.41860-1-maxg@mellanox.com
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:29 +01:00
Parav Pandit 194f9e8e3d Revert "RDMA/cma: Simplify rdma_resolve_addr() error flow"
commit e4103312d7 upstream.

This reverts commit 219d2e9dfd.

The call chain below requires the cm_id_priv's destination address to be
setup before performing rdma_bind_addr(). Otherwise source port allocation
fails as cma_port_is_unique() no longer sees the correct tuple to allow
duplicate users of the source port.

rdma_resolve_addr()
  cma_bind_addr()
    rdma_bind_addr()
      cma_get_port()
        cma_alloc_any_port()
          cma_port_is_unique() <- compared with zero daddr

This can result in false failures to connect, particularly if the source
port range is restricted.

Fixes: 219d2e9dfd ("RDMA/cma: Simplify rdma_resolve_addr() error flow")
Link: https://lore.kernel.org/r/20200212072635.682689-4-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:28 +01:00
Leonard Crestez 80ccc2588f soc: imx-scu: Align imx sc msg structs to 4
commit f10e58a5d2 upstream.

The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: 73feb4d0f8 ("soc: imx-scu: Add SoC UID(unique identifier) support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:28 +01:00
Leonard Crestez 30eb1ea78a firmware: imx: Align imx_sc_msg_req_cpu_start to 4
commit f5bfeff446 upstream.

The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: d90bf296ae ("firmware: imx: Add support to start/stop a CPU")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:28 +01:00
Leonard Crestez a3bede27ca firmware: imx: scu-pd: Align imx sc msg structs to 4
commit 7c1a1c814c upstream.

The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: c800cd7824 ("firmware: imx: add SCU power domain driver")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:28 +01:00
Leonard Crestez 1bebf41fb8 firmware: imx: misc: Align imx sc msg structs to 4
commit 1e6a4eba69 upstream.

The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y:

    BUG: KASAN: stack-out-of-bounds in imx_mu_send_data+0x108/0x1f0

It shouldn't cause an issues in normal use because these structs are
always allocated on the stack.

Fixes: 15e1f2bc8b ("firmware: imx: add misc svc support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:28 +01:00
Fabio Estevam 67a6b0adb1 arm64: dts: imx8qxp-mek: Remove unexisting Ethernet PHY
commit 26c4b4758f upstream.

There is only on Ethernet port and one Ethernet PHY on imx8qxp-mek.

Remove the unexisting ethphy1 port.

This fixes a run-time warning:

mdio_bus 5b040000.ethernet-1: MDIO device at address 1 is missing.

Fixes: fdea904e85 ("arm64: dts: imx: add imx8qxp mek support")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:27 +01:00
Marco Felsch 14bd791e38 ARM: dts: imx6: phycore-som: fix emmc supply
commit eb0bbba763 upstream.

Currently the vmmc is supplied by the 1.8V pmic rail but this is wrong.
The default module behaviour is to power VCCQ and VCC by the 3.3V power
rail. Optional the user can connect the VCCQ to the pmic 1.8V emmc
power rail using a solder jumper.

Fixes: ddec5d1c00 ("ARM: dts: imx6: Add initial support for phyCORE-i.MX 6 SOM")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:27 +01:00
Tony Lindgren 4115c053a3 phy: mapphone-mdm6600: Fix write timeouts with shorter GPIO toggle interval
commit 46b7edf1c7 upstream.

I've noticed that when writing data to the modem the writes can time out
at some point eventually. Looks like kicking the modem idle GPIO every
600 ms instead of once a second fixes the issue. Note that this rate is
different from our runtime PM autosuspend rate MDM6600_MODEM_IDLE_DELAY_MS
that we still want to keep at 1 second, so let's add a separate define for
PHY_MDM6600_IDLE_KICK_MS.

Fixes: f7f50b2a7b ("phy: mapphone-mdm6600: Add runtime PM support for n_gsm on USB suspend")
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Michael Scott <hashcode0f@gmail.com>
Cc: NeKit <nekit1000@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:27 +01:00
Tony Lindgren 6cc80013ad phy: mapphone-mdm6600: Fix timeouts by adding wake-up handling
commit be4e3c737e upstream.

We have an interrupt handler for the wake-up GPIO pin, but we're missing
the code to wake-up the system. This can cause timeouts receiving data
for the UART that shares the wake-up GPIO pin with the USB PHY.

All we need to do is just wake the system and kick the autosuspend
timeout to fix the issue.

Fixes: 5d1ebbda03 ("phy: mapphone-mdm6600: Add USB PHY driver for MDM6600 on Droid 4")
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Michael Scott <hashcode0f@gmail.com>
Cc: NeKit <nekit1000@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:27 +01:00
Dan Carpenter 362fbe8e9d drm/i915/selftests: Fix return in assert_mmap_offset()
commit f4aaa44e8b upstream.

The assert_mmap_offset() returns type bool so if we return an error
pointer that is "return true;" or success.  If we have an error, then
we should return false.

Fixes: 3d81d589d6 ("drm/i915: Test exhaustion of the mmap space")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200228141413.qfjf4abr323drlo4@kili.mountain
(cherry picked from commit efbf928824)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:27 +01:00
Matt Roper 2845fe63f7 drm/i915: Program MBUS with rmw during initialization
commit c725161924 upstream.

It wasn't terribly clear from the bspec's wording, but after discussion
with the hardware folks, it turns out that we need to preserve the
pre-existing contents of the MBUS ABOX control register when
initializing a few specific bits.

Bspec: 49213
Bspec: 50096
Fixes: 4cb4585e5a ("drm/i915/icl: initialize MBus during display init")
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200204011032.582737-1-matthew.d.roper@intel.com
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
(cherry picked from commit 837b63e608)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200228004320.127142-1-matthew.d.roper@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:27 +01:00
Jernej Skrabec 609b392e85 drm/sun4i: de2/de3: Remove unsupported VI layer formats
commit a4769905f0 upstream.

YUV444 and YVU444 are planar formats, but HW format RGB888 is packed.
This means that those two mappings were never correct. Remove them.

Fixes: 60a3dcf96a ("drm/sun4i: Add DE2 definitions for YUV formats")
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-2-jernej.skrabec@siol.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:27 +01:00
Jernej Skrabec a49ddfae6c drm/sun4i: Fix DE2 VI layer format support
commit 20896ef137 upstream.

DE2 VI layer doesn't support blending which means alpha channel is
ignored. Replace all formats with alpha with "don't care" (X) channel.

Fixes: 7480ba4d75 ("drm/sun4i: Add support for DE2 VI planes")
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-4-jernej.skrabec@siol.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:26 +01:00
Jernej Skrabec dfe25f9a1c drm/sun4i: Add separate DE3 VI layer formats
commit 169ca4b389 upstream.

DE3 VI layers support alpha blending, but DE2 VI layers do not.
Additionally, DE3 VI layers support 10-bit RGB and YUV formats.

Make a separate list for DE3.

Fixes: c50519e6db ("drm/sun4i: Add basic support for DE3")
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-3-jernej.skrabec@siol.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-12 13:00:26 +01:00