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cl2n: correct syntax errors in dts, revert vmmc/vqmmc swap #27

Merged
merged 1 commit into from
Apr 8, 2021
Merged

cl2n: correct syntax errors in dts, revert vmmc/vqmmc swap #27

merged 1 commit into from
Apr 8, 2021

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KaiJan57
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@KaiJan57 KaiJan57 commented Apr 8, 2021

External sd card slot finally works!

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digetx commented Apr 8, 2021

Awesome!

@digetx digetx merged commit 1cceaa6 into grate-driver:master Apr 8, 2021
digetx pushed a commit that referenced this pull request Apr 9, 2021
@ian-abbott @gregkh
staging: comedi: tests: ni_routes_test: Avoid CamelCase: <RVi>
2628ca5 
Rename the `RVi` macro to `RVI` to avoid this checkpatch.pl issue:

CHECK: #27: FILE: drivers/staging/comedi/drivers/tests/ni_routes_test.c:27:
+#define RVi(table, src, dest)	((table)[(dest) * NI_NUM_NAMES + (src)])

Cc: Spencer E. Olson <olsonse@umich.edu>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20210407140142.447250-4-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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digetx commented Apr 10, 2021

@KaiJan57 Could you please show /sys/kernel/debug/tegra_pinmux /sys/kernel/debug/tegra_pinmux_drive from downstream kernel?

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pinmux-ds.txt
Everything in one file. May I ask what you need it for? Just curious. And happy to see others interested in getting that stone age tablet to work :)

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digetx commented Apr 10, 2021

Needed that for verifying the pinmux in device-tree. I fixed pinmux and also cleaned up other things, everything is pushed to grate-kernel/master, please give it a test and let me know if it works.

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Most error messages are gone, good job! Please find attached this device-tree's dmesg boot output(booting arch linux, that's why there is systemd involved).
However, there are a few changes missing I made to my device tree, as the touchscreen node is incomplete; it is should have width and height information. Maybe I can make a PR later.
BTW, do you happen to know how to get that darn BCM4330 chip working?

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Oh, and another BTW: before your changes there was a peculiarity concerning my device-tree's clock configuration making the tablet freeze without this (clk_ignore_unused) kernel parameter. What did you do to fix that? I had spent hours reading through documentation and source code, but to no avail…

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I just noticed that actual backlight brightness became less linear to setting, probably because you removed calibration data given in downstream kernel.

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digetx commented Apr 10, 2021

Please always feel free make a PR, I'll merge it and help to complete if needed.

For BCM4330 you should try the firmware from the Android ROM, the default upstream one doesn't work well on Nexus 7 for example. You should also use the NVRAM file from the Android ROM.

I don't recall changing anything specific which could fix clk_ignore_unused, maybe corrected pinmux helped.

I'll add back the original backlight levels on next kernel update, thank you for the feedback!

okias pushed a commit to okias/linux that referenced this pull request Sep 16, 2021
@borkmann
bpf, selftests: Add test case for mixed cgroup v1/v2
43d2b88 
Minimal selftest which implements a small BPF policy program to the
connect(2) hook which rejects TCP connection requests to port 60123
with EPERM. This is being attached to a non-root cgroup v2 path. The
test asserts that this works under cgroup v2-only and under a mixed
cgroup v1/v2 environment where net_classid is set in the former case.

Before fix:

  # ./test_progs -t cgroup_v1v2
  test_cgroup_v1v2:PASS:server_fd 0 nsec
  test_cgroup_v1v2:PASS:client_fd 0 nsec
  test_cgroup_v1v2:PASS:cgroup_fd 0 nsec
  test_cgroup_v1v2:PASS:server_fd 0 nsec
  run_test:PASS:skel_open 0 nsec
  run_test:PASS:prog_attach 0 nsec
  test_cgroup_v1v2:PASS:cgroup-v2-only 0 nsec
  run_test:PASS:skel_open 0 nsec
  run_test:PASS:prog_attach 0 nsec
  run_test:PASS:join_classid 0 nsec
  (network_helpers.c:219: errno: None) Unexpected success to connect to server
  test_cgroup_v1v2:FAIL:cgroup-v1v2 unexpected error: -1 (errno 0)
  grate-driver#27 cgroup_v1v2:FAIL
  Summary: 0/0 PASSED, 0 SKIPPED, 1 FAILED

After fix:

  # ./test_progs -t cgroup_v1v2
  grate-driver#27 cgroup_v1v2:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210913230759.2313-3-daniel@iogearbox.net
digetx pushed a commit that referenced this pull request Sep 28, 2021
@rleon @davem330
net/mlx5: Accept devlink user input after driver initialization complete
64ea2d0 
The change of devlink_alloc() to accept device makes sure that device
is fully initialized and device_register() does nothing except allowing
users to use that devlink instance.

Such change ensures that no user input will be usable till that point and
it eliminates the need to worry about internal locking as long as devlink_register
is called last since all accesses to the devlink are during initialization.

This change fixes the following lockdep warning.

 ======================================================
 WARNING: possible circular locking dependency detected
 5.14.0-rc2+ #27 Not tainted
 ------------------------------------------------------
 devlink/265 is trying to acquire lock:
 ffff8880133c2bc0 (&dev->intf_state_mutex){+.+.}-{3:3}, at: mlx5_unload_one+0x1e/0xa0 [mlx5_core]
 but task is already holding lock:
 ffffffff8362b468 (devlink_mutex){+.+.}-{3:3}, at: devlink_nl_pre_doit+0x2b/0x8d0
 which lock already depends on the new lock.
 the existing dependency chain (in reverse order) is:

 -> #1 (devlink_mutex){+.+.}-{3:3}:
        __mutex_lock+0x149/0x1310
        devlink_register+0xe7/0x280
        mlx5_devlink_register+0x118/0x480 [mlx5_core]
        mlx5_init_one+0x34b/0x440 [mlx5_core]
        probe_one+0x480/0x6e0 [mlx5_core]
        pci_device_probe+0x2a0/0x4a0
        really_probe+0x1cb/0xba0
        __driver_probe_device+0x18f/0x470
        driver_probe_device+0x49/0x120
        __driver_attach+0x1ce/0x400
        bus_for_each_dev+0x11e/0x1a0
        bus_add_driver+0x309/0x570
        driver_register+0x20f/0x390
        0xffffffffa04a0062
        do_one_initcall+0xd5/0x400
        do_init_module+0x1c8/0x760
        load_module+0x7d9d/0xa4b0
        __do_sys_finit_module+0x118/0x1a0
        do_syscall_64+0x3d/0x90
        entry_SYSCALL_64_after_hwframe+0x44/0xae

 -> #0 (&dev->intf_state_mutex){+.+.}-{3:3}:
        __lock_acquire+0x2999/0x5a40
        lock_acquire+0x1a9/0x4a0
        __mutex_lock+0x149/0x1310
        mlx5_unload_one+0x1e/0xa0 [mlx5_core]
        mlx5_devlink_reload_down+0x185/0x2b0 [mlx5_core]
        devlink_reload+0x1f2/0x640
        devlink_nl_cmd_reload+0x6c3/0x10d0
        genl_family_rcv_msg_doit+0x1e9/0x2f0
        genl_rcv_msg+0x27f/0x4a0
        netlink_rcv_skb+0x11e/0x340
        genl_rcv+0x24/0x40
        netlink_unicast+0x433/0x700
        netlink_sendmsg+0x6fb/0xbe0
        sock_sendmsg+0xb0/0xe0
        __sys_sendto+0x192/0x240
        __x64_sys_sendto+0xdc/0x1b0
        do_syscall_64+0x3d/0x90
        entry_SYSCALL_64_after_hwframe+0x44/0xae

 other info that might help us debug this:

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(devlink_mutex);
                                lock(&dev->intf_state_mutex);
                                lock(devlink_mutex);
   lock(&dev->intf_state_mutex);

  *** DEADLOCK ***

 3 locks held by devlink/265:
  #0: ffffffff836371d0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40
  #1: ffffffff83637288 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x31a/0x4a0
  #2: ffffffff8362b468 (devlink_mutex){+.+.}-{3:3}, at: devlink_nl_pre_doit+0x2b/0x8d0

 stack backtrace:
 CPU: 0 PID: 265 Comm: devlink Not tainted 5.14.0-rc2+ #27
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
 Call Trace:
  dump_stack_lvl+0x45/0x59
  check_noncircular+0x268/0x310
  ? print_circular_bug+0x460/0x460
  ? __kernel_text_address+0xe/0x30
  ? alloc_chain_hlocks+0x1e6/0x5a0
  __lock_acquire+0x2999/0x5a40
  ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0
  ? add_lock_to_list.constprop.0+0x6c/0x530
  lock_acquire+0x1a9/0x4a0
  ? mlx5_unload_one+0x1e/0xa0 [mlx5_core]
  ? lock_release+0x6c0/0x6c0
  ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0
  ? lock_is_held_type+0x98/0x110
  __mutex_lock+0x149/0x1310
  ? mlx5_unload_one+0x1e/0xa0 [mlx5_core]
  ? lock_is_held_type+0x98/0x110
  ? mlx5_unload_one+0x1e/0xa0 [mlx5_core]
  ? find_held_lock+0x2d/0x110
  ? mutex_lock_io_nested+0x1160/0x1160
  ? mlx5_lag_is_active+0x72/0x90 [mlx5_core]
  ? lock_downgrade+0x6d0/0x6d0
  ? do_raw_spin_lock+0x12e/0x270
  ? rwlock_bug.part.0+0x90/0x90
  ? mlx5_unload_one+0x1e/0xa0 [mlx5_core]
  mlx5_unload_one+0x1e/0xa0 [mlx5_core]
  mlx5_devlink_reload_down+0x185/0x2b0 [mlx5_core]
  ? netlink_broadcast_filtered+0x308/0xac0
  ? mlx5_devlink_info_get+0x1f0/0x1f0 [mlx5_core]
  ? __build_skb_around+0x110/0x2b0
  ? __alloc_skb+0x113/0x2b0
  devlink_reload+0x1f2/0x640
  ? devlink_unregister+0x1e0/0x1e0
  ? security_capable+0x51/0x90
  devlink_nl_cmd_reload+0x6c3/0x10d0
  ? devlink_nl_cmd_get_doit+0x1e0/0x1e0
  ? devlink_nl_pre_doit+0x72/0x8d0
  genl_family_rcv_msg_doit+0x1e9/0x2f0
  ? __lock_acquire+0x15e2/0x5a40
  ? genl_family_rcv_msg_attrs_parse.constprop.0+0x240/0x240
  ? mutex_lock_io_nested+0x1160/0x1160
  ? security_capable+0x51/0x90
  genl_rcv_msg+0x27f/0x4a0
  ? genl_get_cmd+0x3c0/0x3c0
  ? lock_acquire+0x1a9/0x4a0
  ? devlink_nl_cmd_get_doit+0x1e0/0x1e0
  ? lock_release+0x6c0/0x6c0
  netlink_rcv_skb+0x11e/0x340
  ? genl_get_cmd+0x3c0/0x3c0
  ? netlink_ack+0x930/0x930
  genl_rcv+0x24/0x40
  netlink_unicast+0x433/0x700
  ? netlink_attachskb+0x750/0x750
  ? __alloc_skb+0x113/0x2b0
  netlink_sendmsg+0x6fb/0xbe0
  ? netlink_unicast+0x700/0x700
  ? netlink_unicast+0x700/0x700
  sock_sendmsg+0xb0/0xe0
  __sys_sendto+0x192/0x240
  ? __x64_sys_getpeername+0xb0/0xb0
  ? do_sys_openat2+0x10a/0x370
  ? down_write_nested+0x150/0x150
  ? do_user_addr_fault+0x215/0xd50
  ? __x64_sys_openat+0x11f/0x1d0
  ? __x64_sys_open+0x1a0/0x1a0
  __x64_sys_sendto+0xdc/0x1b0
  ? syscall_enter_from_user_mode+0x1d/0x50
  do_syscall_64+0x3d/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xae
 RIP: 0033:0x7f50b50b6b3a
 Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 76 c3 0f 1f 44 00 00 55 48 83 ec 30 44 89 4c
 RSP: 002b:00007fff6c0d3f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f50b50b6b3a
 RDX: 0000000000000038 RSI: 000055763ac08440 RDI: 0000000000000003
 RBP: 000055763ac08410 R08: 00007f50b5192200 R09: 000000000000000c
 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
 R13: 0000000000000000 R14: 000055763ac08410 R15: 000055763ac08440
 mlx5_core 0000:00:09.0: firmware version: 4.8.9999
 mlx5_core 0000:00:09.0: 0.000 Gb/s available PCIe bandwidth (8.0 GT/s PCIe x255 link)
 mlx5_core 0000:00:09.0 eth1: Link up

Fixes: a6f3b62 ("net/mlx5: Move devlink registration before interfaces load")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
digetx pushed a commit that referenced this pull request Oct 22, 2021
@anakryiko
selftests/bpf: Fix perf_buffer test on system with offline cpus
d412137 
The perf_buffer fails on system with offline cpus:

  # test_progs -t perf_buffer
  test_perf_buffer:PASS:nr_cpus 0 nsec
  test_perf_buffer:PASS:nr_on_cpus 0 nsec
  test_perf_buffer:PASS:skel_load 0 nsec
  test_perf_buffer:PASS:attach_kprobe 0 nsec
  test_perf_buffer:PASS:perf_buf__new 0 nsec
  test_perf_buffer:PASS:epoll_fd 0 nsec
  skipping offline CPU #24
  skipping offline CPU #25
  skipping offline CPU #26
  skipping offline CPU #27
  skipping offline CPU #28
  skipping offline CPU #29
  skipping offline CPU #30
  skipping offline CPU #31
  test_perf_buffer:PASS:perf_buffer__poll 0 nsec
  test_perf_buffer:PASS:seen_cpu_cnt 0 nsec
  test_perf_buffer:FAIL:buf_cnt got 24, expected 32
  Summary: 0/0 PASSED, 0 SKIPPED, 1 FAILED

Changing the test to check online cpus instead of possible.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20211021114132.8196-2-jolsa@kernel.org
digetx pushed a commit that referenced this pull request Nov 12, 2021
@TaeheeYoo @kuba-moo
amt: use cancel_delayed_work() instead of flush_delayed_work() in amt…
43aa493 
…_fini()

When the amt module is being removed, it calls flush_delayed_work() to exit
source_gc_wq. But it wouldn't be exited properly because the
amt_source_gc_work(), which is the callback function of source_gc_wq
internally calls mod_delayed_work() again.
So, amt_source_gc_work() would be called after the amt module is removed.
Therefore kernel panic would occur.
In order to avoid it, cancel_delayed_work() should be used instead of
flush_delayed_work().

Test commands:
   modprobe amt
   modprobe -rv amt

Splat looks like:
 BUG: unable to handle page fault for address: fffffbfff80f50db
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 1237ee067 P4D 1237ee067 PUD 1237b2067 PMD 100c11067 PTE 0
 Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN PTI
 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.15.0+ #27
 5a0ebebc29fe5c40c68bea90197606c3a832b09f
 RIP: 0010:run_timer_softirq+0x221/0xfc0
 Code: 00 00 4c 89 e1 4c 8b 30 48 c1 e9 03 80 3c 29 00 0f 85 ed 0b 00 00
 4d 89 34 24 4d 85 f6 74 19 49 8d 7e 08 48 89 f9 48 c1 e9 03 <80> 3c 29 00
 0f 85 fa 0b 00 00 4d 89 66 08 83 04 24 01 49 89 d4 48
 RSP: 0018:ffff888119009e50 EFLAGS: 00010806
 RAX: ffff8881191f8a80 RBX: 00000000007ffe2a RCX: 1ffffffff80f50db
 RDX: ffff888119009ed0 RSI: 0000000000000008 RDI: ffffffffc07a86d8
 RBP: dffffc0000000000 R08: ffff8881191f8280 R09: ffffed102323f061
 R10: ffff8881191f8307 R11: ffffed102323f060 R12: ffff888119009ec8
 R13: 00000000000000c0 R14: ffffffffc07a86d0 R15: ffff8881191f82e8
 FS:  0000000000000000(0000) GS:ffff888119000000(0000)
 knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: fffffbfff80f50db CR3: 00000001062dc002 CR4: 00000000003706e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  <IRQ>
  ? add_timer+0x650/0x650
  ? kvm_clock_read+0x14/0x30
  ? ktime_get+0xb9/0x180
  ? rcu_read_lock_held_common+0xe/0xa0
  ? rcu_read_lock_sched_held+0x56/0xc0
  ? rcu_read_lock_bh_held+0xa0/0xa0
  ? hrtimer_interrupt+0x271/0x790
  __do_softirq+0x1d0/0x88f
  irq_exit_rcu+0xe7/0x120
  sysvec_apic_timer_interrupt+0x8a/0xb0
  </IRQ>
  <TASK>
[ ... ]

Fixes: bc54e49 ("amt: add multicast(IGMP) report message handler")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Link: https://lore.kernel.org/r/20211108145340.17208-1-ap420073@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@KaiJan57 @digetx