linux-kernel - Geode LX AES driver warning, kernel 4.9.10

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Date:   Fri, 17 Feb 2017 09:11:05 +0100
From:   Boszormenyi Zoltan <zboszor@...hu>
To:     lkml <linux-kernel@...r.kernel.org>
Subject: Geode LX AES driver warning, kernel 4.9.10

Hi,

this did not occur in the 4.8.x series but I get this with 4.9.9 and 4.9.10:

[   13.785289] ------------[ cut here ]------------
[   13.785314] WARNING: CPU: 0 PID: 1 at drivers/base/dd.c:344 driver_probe_device+0x3f7/0x430
[   13.785319] Modules linked in:
[   13.785339] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.10 #1
[   13.785347]  ce0bddd0 cbb0050a 00000000 cc03db65 ce0bde00 cb853a5a cbff2e50 00000000
[   13.785381]  00000001 cc03db65 00000158 cbc1a987 00000158 ce00b068 cc166c14 cc166c14
[   13.785416]  ce0bde14 cb853b2a 00000009 00000000 00000000 ce0bde44 cbc1a987 cbb4ac19
[   13.785449] Call Trace:
[   13.785481]  [<cbb0050a>] dump_stack+0x58/0x7e
[   13.785497]  [<cb853a5a>] __warn+0xea/0x110
[   13.785514]  [<cbc1a987>] ? driver_probe_device+0x3f7/0x430
[   13.785530]  [<cb853b2a>] warn_slowpath_null+0x2a/0x30
[   13.785545]  [<cbc1a987>] driver_probe_device+0x3f7/0x430
[   13.785562]  [<cbb4ac19>] ? pci_match_id+0x9/0x90
[   13.785578]  [<cbb4ad74>] ? pci_match_device+0xd4/0xf0
[   13.785594]  [<cbc1aab1>] __driver_attach+0xf1/0x100
[   13.785618]  [<cbebf409>] ? _raw_spin_lock+0x9/0x30
[   13.785634]  [<cbeb992b>] ? klist_next+0x1b/0xf0
[   13.785649]  [<cbc1a9c0>] ? driver_probe_device+0x430/0x430
[   13.785675]  [<cbc18917>] bus_for_each_dev+0x47/0x80
[   13.785690]  [<cbc1a11e>] driver_attach+0x1e/0x20
[   13.785705]  [<cbc1a9c0>] ? driver_probe_device+0x430/0x430
[   13.785719]  [<cbc19bf7>] bus_add_driver+0x147/0x260
[   13.785737]  [<cbc1b469>] driver_register+0x59/0xe0
[   13.785753]  [<cbd9d694>] ? cleanup_entry_list+0xa/0x3d
[   13.785773]  [<cbd77cb8>] ? efivars_kobject+0x8/0x20
[   13.785794]  [<cc1f1ac5>] ? efibc_init+0x3a/0x3a
[   13.785809]  [<cbb49ae3>] __pci_register_driver+0x33/0x40
[   13.785826]  [<cc1f1ad9>] geode_aes_driver_init+0x14/0x16
[   13.785841]  [<cb8004e2>] do_one_initcall+0x42/0x180
[   13.785862]  [<cb86e288>] ? parameq+0x18/0x70
[   13.785879]  [<cb86e458>] ? parse_args+0x178/0x4c0
[   13.785903]  [<cc1a0df6>] kernel_init_freeable+0x146/0x1dd
[   13.785919]  [<cc1a05eb>] ? set_debug_rodata+0xf/0xf
[   13.785933]  [<cbeb9d20>] ? rest_init+0x70/0x70
[   13.785948]  [<cbeb9d30>] kernel_init+0x10/0x100
[   13.785964]  [<cb87a461>] ? schedule_tail+0x11/0x50
[   13.785978]  [<cbeb9d20>] ? rest_init+0x70/0x70
[   13.785996]  [<cbebf683>] ret_from_fork+0x1b/0x28
[   13.786064] ---[ end trace 2345b58de526115e ]---
[   13.786216] Geode LX AES 0000:00:01.2: guessed PCI INT A -> IRQ 10
[   13.786291] Geode LX AES 0000:00:01.2: sharing IRQ 10 with 0000:00:01.1
[   13.797843] Geode LX AES 0000:00:01.2: GEODE AES engine enabled.

What has changed in 4.9.x that causes this?

Best regards,
Zoltán Böszörményi