drm/i915/perf: Initialise dynamic sysfs group before creation
Another case where we need to call sysfs_attr_init() to setup the
internal lockdep class prior to use:
[ 9.325229] BUG: key
ffff880168bc7bb0 not in .data!
[ 9.325240] DEBUG_LOCKS_WARN_ON(1)
[ 9.325250] ------------[ cut here ]------------
[ 9.325280] WARNING: CPU: 1 PID: 275 at kernel/locking/lockdep.c:3156 lockdep_init_map+0x1b2/0x1c0
[ 9.325301] Modules linked in: intel_powerclamp(+) coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i915(+) snd_hda_intel snd_hda_codec snd_hwdep r8169 mii snd_hda_core snd_pcm prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
[ 9.325375] CPU: 1 PID: 275 Comm: modprobe Not tainted 4.13.0-rc4-CI-Trybot_1040+ #1
[ 9.325395] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0045.B51.
1704281422 04/28/2017
[ 9.325422] task:
ffff8801721a4ec0 task.stack:
ffffc900001dc000
[ 9.325440] RIP: 0010:lockdep_init_map+0x1b2/0x1c0
[ 9.325456] RSP: 0018:
ffffc900001dfa10 EFLAGS:
00010282
[ 9.325473] RAX:
0000000000000016 RBX:
ffff880168d54b80 RCX:
0000000000000000
[ 9.325488] RDX:
0000000080000001 RSI:
0000000000000001 RDI:
ffffffff810f0800
[ 9.325505] RBP:
ffffc900001dfa30 R08:
0000000000000001 R09:
0000000000000000
[ 9.325521] R10:
0000000000000000 R11:
0000000000000000 R12:
ffff880168bc7bb0
[ 9.325537] R13:
0000000000000000 R14:
ffff880168bc7b98 R15:
ffffffff81a263a0
[ 9.325554] FS:
00007fb60c3fd700(0000) GS:
ffff88017fc80000(0000) knlGS:
0000000000000000
[ 9.325574] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 9.325588] CR2:
0000006582777d80 CR3:
000000016d818000 CR4:
00000000003406e0
[ 9.325604] Call Trace:
[ 9.325618] __kernfs_create_file+0x76/0xe0
[ 9.325632] sysfs_add_file_mode_ns+0x8a/0x1a0
[ 9.325646] internal_create_group+0xea/0x2c0
[ 9.325660] sysfs_create_group+0x13/0x20
[ 9.325737] i915_perf_register+0xde/0x220 [i915]
[ 9.325800] i915_driver_load+0xa77/0x16c0 [i915]
[ 9.325863] i915_pci_probe+0x37/0x90 [i915]
[ 9.325880] pci_device_probe+0xa8/0x130
[ 9.325894] driver_probe_device+0x29c/0x450
[ 9.325908] __driver_attach+0xe3/0xf0
[ 9.325922] ? driver_probe_device+0x450/0x450
[ 9.325935] bus_for_each_dev+0x62/0xa0
[ 9.325948] driver_attach+0x1e/0x20
[ 9.325960] bus_add_driver+0x173/0x270
[ 9.325974] driver_register+0x60/0xe0
[ 9.325986] __pci_register_driver+0x60/0x70
[ 9.326044] i915_init+0x6f/0x78 [i915]
[ 9.326066] ? 0xffffffffa024e000
[ 9.326079] do_one_initcall+0x43/0x170
[ 9.326094] ? rcu_read_lock_sched_held+0x7a/0x90
[ 9.326109] ? kmem_cache_alloc_trace+0x261/0x2d0
[ 9.326124] do_init_module+0x5f/0x206
[ 9.326137] load_module+0x2561/0x2da0
[ 9.326150] ? show_coresize+0x30/0x30
[ 9.326165] ? kernel_read_file+0x105/0x190
[ 9.326180] SyS_finit_module+0xc1/0x100
[ 9.326192] ? SyS_finit_module+0xc1/0x100
[ 9.326210] entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 9.326223] RIP: 0033:0x7fb60bf359f9
[ 9.326234] RSP: 002b:
00007fff92b47c48 EFLAGS:
00000246 ORIG_RAX:
0000000000000139
[ 9.326255] RAX:
ffffffffffffffda RBX:
ffffffff814898a3 RCX:
00007fb60bf359f9
[ 9.326271] RDX:
0000000000000000 RSI:
00000028a9ceef8b RDI:
0000000000000000
[ 9.326287] RBP:
ffffc900001dff88 R08:
0000000000000000 R09:
0000000000000000
[ 9.326303] R10:
0000000000000000 R11:
0000000000000246 R12:
0000000000040000
[ 9.326319] R13:
00000028aaef2a70 R14:
0000000000000000 R15:
00000028aaeee5d0
[ 9.326339] ? __this_cpu_preempt_check+0x13/0x20
[ 9.326353] Code: f1 39 00 85 c0 0f 84 38 ff ff ff 83 3d 9f 44 ce 01 00 0f 85 2b ff ff ff 48 c7 c6 b2 a2 c7 81 48 c7 c7 53 40 c5 81 e8 3f 82 01 00 <0f> ff e9 11 ff ff ff 0f 1f 80 00 00 00 00 55 31 c9 31 d2 31 f6
Fixes: 701f8231a2fe ("drm/i915/perf: prune OA configs")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170810175743.25401-1-chris@chris-wilson.co.uk
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
projects / openwrt / staging / blogic.git / commit