rs600 warn on while booting 3.7-rc8

From: Dave Jones
Date: Sat Dec 08 2012 - 20:27:21 EST


[ 66.104790] WARNING: at drivers/gpu/drm/radeon/rs600.c:571 rs600_irq_set+0x1e2/0x200()
[ 66.105748] Hardware name: GA-MA78GM-S2H
[ 66.106220] Can't enable IRQ/MSI because no handler is installed
[ 66.106935] Modules linked in:
[ 66.107329] Pid: 43, comm: kworker/0:1 Not tainted 3.7.0-rc8+ #8
[ 66.108044] Call Trace:
[ 66.108350] [<ffffffff8104da4f>] warn_slowpath_common+0x7f/0xc0
[ 66.109067] [<ffffffff8104db46>] warn_slowpath_fmt+0x46/0x50
[ 66.109749] [<ffffffff81480762>] rs600_irq_set+0x1e2/0x200
[ 66.110416] [<ffffffff8146fa92>] ? radeon_irq_kms_enable_hpd+0x32/0x90
[ 66.111203] [<ffffffff8146faca>] radeon_irq_kms_enable_hpd+0x6a/0x90
[ 66.111965] [<ffffffff81480123>] rs600_hpd_init+0xb3/0xc0
[ 66.112627] [<ffffffff814680f3>] radeon_modeset_init+0x323/0xb90
[ 66.113355] [<ffffffff81444f40>] radeon_driver_load_kms+0xf0/0x180
[ 66.114103] [<ffffffff8140f356>] drm_get_pci_dev+0x186/0x2c0
[ 66.114790] [<ffffffff8119dda8>] ? kfree+0x298/0x2a0
[ 66.115397] [<ffffffff8171e22a>] radeon_pci_probe+0xb1/0xb9
[ 66.116074] [<ffffffff81357679>] local_pci_probe+0x79/0x100
[ 66.116751] [<ffffffff8106db18>] work_for_cpu_fn+0x18/0x30
[ 66.117418] [<ffffffff810711c7>] process_one_work+0x207/0x750
[ 66.118109] [<ffffffff81071157>] ? process_one_work+0x197/0x750
[ 66.118825] [<ffffffff8106db00>] ? too_many_workers+0x40/0x40
[ 66.119517] [<ffffffff8107173c>] process_scheduled_works+0x2c/0x40
[ 66.120259] [<ffffffff81071c82>] worker_thread+0x2f2/0x440
[ 66.120925] [<ffffffff81071990>] ? rescuer_thread+0x240/0x240
[ 66.121622] [<ffffffff8107844d>] kthread+0xed/0x100
[ 66.122218] [<ffffffff810b7f1e>] ? put_lock_stats.isra.23+0xe/0x40
[ 66.122961] [<ffffffff81078360>] ? kthread_create_on_node+0x160/0x160
[ 66.123739] [<ffffffff81742e1c>] ret_from_fork+0x7c/0xb0
[ 66.124384] [<ffffffff81078360>] ? kthread_create_on_node+0x160/0x160

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