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7cba8c30aa
Fix the following kernel warning that occurs if scan work is scheduled and the hw scan has been cancelled by mac80211 WARNING: CPU: 1 PID: 502 at net/mac80211/scan.c:391 __ieee80211_scan_completed+0x299/0x690 Modules linked in: CPU: 1 PID: 502 Comm: kworker/u4:4 Not tainted 5.7.0-rc1+ #2882 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014 Workqueue: phy0 ieee80211_scan_work RIP: 0010:__ieee80211_scan_completed+0x299/0x690 RSP: 0018:ffffc9000036fda8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 8c6318c6318c6320 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff88803bb129b8 RBP: ffff88803bb10d80 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88803bb12ae8 FS: 0000000000000000(0000) GS:ffff88803ec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f13ee5c1470 CR3: 000000003c790000 CR4: 00000000000006a0 Call Trace: ieee80211_scan_work+0x170/0x850 ? sched_clock_cpu+0x11/0xb0 process_one_work+0x24f/0x580 ? worker_thread+0xcc/0x3e0 worker_thread+0x4f/0x3e0 ? process_one_work+0x580/0x580 kthread+0x11b/0x140 ? __kthread_bind_mask+0x60/0x60 ret_from_fork+0x3a/0x50 irq event stamp: 9255532 hardirqs last enabled at (9255531): [<ffffffff81a504e4>] _raw_spin_unlock_irq+0x24/0x30 hardirqs last disabled at (9255532): [<ffffffff81001b3f>] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (9255526): [<ffffffff8107c9ef>] process_one_work+0x24f/0x580 softirqs last disabled at (9255524): [<ffffffff815f2f41>] mt7615_scan_work+0x91/0xc0 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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
``make pdfdocs``. The formatted documentation can also be read online at:
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.