2b94f5266c
Commit 0366f7e06a6b ("net: stmmac: add ethtool support for get/set
channels") refactored channel initialization, but during that operation,
the spinlock initialization got lost. Fix this. This fixes the following
lockdep warning:
meson8b-dwmac ff3f0000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 331 Comm: kworker/1:2H Not tainted 5.9.0-rc3+ #1858
Hardware name: Hardkernel ODROID-N2 (DT)
Workqueue: kblockd blk_mq_run_work_fn
Call trace:
dump_backtrace+0x0/0x1d0
show_stack+0x14/0x20
dump_stack+0xe8/0x154
register_lock_class+0x58c/0x590
__lock_acquire+0x7c/0x1790
lock_acquire+0xf4/0x440
_raw_spin_lock_irqsave+0x80/0xb0
stmmac_tx_timer+0x4c/0xb0 [stmmac]
call_timer_fn+0xc4/0x3e8
run_timer_softirq+0x2b8/0x6c0
efi_header_end+0x114/0x5f8
irq_exit+0x104/0x110
__handle_domain_irq+0x60/0xb8
gic_handle_irq+0x58/0xb0
el1_irq+0xbc/0x180
_raw_spin_unlock_irqrestore+0x48/0x90
mmc_blk_rw_wait+0x70/0x160
mmc_blk_mq_issue_rq+0x510/0x830
mmc_mq_queue_rq+0x13c/0x278
blk_mq_dispatch_rq_list+0x2a0/0x698
__blk_mq_do_dispatch_sched+0x254/0x288
__blk_mq_sched_dispatch_requests+0x190/0x1d8
blk_mq_sched_dispatch_requests+0x34/0x70
__blk_mq_run_hw_queue+0xcc/0x148
blk_mq_run_work_fn+0x20/0x28
process_one_work+0x2a8/0x718
worker_thread+0x48/0x460
kthread+0x134/0x160
ret_from_fork+0x10/0x1c
Fixes: 0366f7e06a6b ("net: stmmac: add ethtool support for get/set channels")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20201029185011.4749-1-m.szyprowski@samsung.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
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https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.