Linux 4.1 WARNING in drm_ioctl.c

2015-06-23 Thread Fabio Coatti 
In data martedì 23 giugno 2015 15:29:41, Daniel Vetter ha scritto:
> On Tue, Jun 23, 2015 at 12:46:09PM +0200, Fabio Coatti wrote:
> > In data martedì 23 giugno 2015 11:48:47, Daniel Vetter ha scritto:
> > > On Tue, Jun 23, 2015 at 08:27:13AM +0100, Daniel Stone wrote:
> > > > Hi,
> > > > 
> > > > On 23 June 2015 at 07:39, Daniel Vetter  wrote:
> > > > > Which drm driver are you using? I didn't spot anything in your
> > > > > module
> > > > > list
> > > > > but might have missed it. Booting with drm.debug=0xe and grabbing
> > > > > dmesg
> > > > > will tell us for sure.
> > > > 
> > > > That'd be vgem.
> > > 
> > > If so then the below diff should help.
> > > -Daniel
> > > diff --git a/drivers/gpu/drm/vgem/vgem_drv.c
> > > b/drivers/gpu/drm/vgem/vgem_drv.c index 7a207ca547be..b491fb32cddb
> > > 100644
> > > --- a/drivers/gpu/drm/vgem/vgem_drv.c
> > > +++ b/drivers/gpu/drm/vgem/vgem_drv.c
> > > @@ -328,6 +328,8 @@ static int __init vgem_init(void)
> > > 
> > >   goto out;
> > >   
> > >   }
> > > 
> > > + drm_dev_set_unique(drm, "vgem");
> > > +
> > > 
> > >   ret  = drm_dev_register(vgem_device, 0);
> > >   
> > >   if (ret)
> > 
> > Not really sure about "drm" in drm_dev_set_unique():
> >   CHK include/generated/compile.h
> >   GZIPkernel/config_data.gz
> >   CHK kernel/config_data.h
> >   CC  drivers/gpu/drm/vgem/vgem_drv.o
> > 
> > drivers/gpu/drm/vgem/vgem_drv.c: In function ‘vgem_init’:
> > drivers/gpu/drm/vgem/vgem_drv.c:331:21: error: ‘drm’ undeclared (first 
> > use
> > in this function)
> 
> s/drm/vgem_device/ ... copypaste fail without running gcc.
> -Daniel


Ok, that fixed, it; no more drm WARNING messages in dmesg. 

Many thanks!
-- 
Fabio

Linux 4.1 WARNING in drm_ioctl.c

2015-06-23 Thread Fabio Coatti 
In data martedì 23 giugno 2015 11:48:47, Daniel Vetter ha scritto:
> On Tue, Jun 23, 2015 at 08:27:13AM +0100, Daniel Stone wrote:
> > Hi,
> > 
> > On 23 June 2015 at 07:39, Daniel Vetter  wrote:
> > > Which drm driver are you using? I didn't spot anything in your module
> > > list
> > > but might have missed it. Booting with drm.debug=0xe and grabbing dmesg
> > > will tell us for sure.
> > 
> > That'd be vgem.
> 
> If so then the below diff should help.
> -Daniel
> diff --git a/drivers/gpu/drm/vgem/vgem_drv.c
> b/drivers/gpu/drm/vgem/vgem_drv.c index 7a207ca547be..b491fb32cddb 100644
> --- a/drivers/gpu/drm/vgem/vgem_drv.c
> +++ b/drivers/gpu/drm/vgem/vgem_drv.c
> @@ -328,6 +328,8 @@ static int __init vgem_init(void)
>   goto out;
>   }
> 
> + drm_dev_set_unique(drm, "vgem");
> +
>   ret  = drm_dev_register(vgem_device, 0);
> 
>   if (ret)


Not really sure about "drm" in drm_dev_set_unique():

  CHK include/generated/compile.h
  GZIPkernel/config_data.gz
  CHK kernel/config_data.h
  CC  drivers/gpu/drm/vgem/vgem_drv.o
drivers/gpu/drm/vgem/vgem_drv.c: In function ‘vgem_init’:
drivers/gpu/drm/vgem/vgem_drv.c:331:21: error: ‘drm’ undeclared (first use 
in 
this function)



-- 
Fabio

Linux 4.1 WARNING in drm_ioctl.c

2015-06-23 Thread Fabio Coatti 
In data martedì 23 giugno 2015 08:39:47, Daniel Vetter ha scritto:
> On Mon, Jun 22, 2015 at 04:04:20PM +0200, Fabio Coatti wrote:
> > Hi All,
> > 
> > just compiled 4.1 and just got this warning, twice, in my dmesg:
> > 
> > 
> > [lun giu 22 11:43:18 2015] [ cut here ]
> > [lun giu 22 11:43:18 2015] WARNING: CPU: 1 PID: 2184 at
> > drivers/gpu/drm/drm_ioctl.c:144 drm_setversion+0xe1/0x179()
> > [lun giu 22 11:43:18 2015] No drm_driver.set_busid() implementation
> > provided by 0x81ec3980. Use drm_dev_set_unique() to set the
> > unique name explicitly.
> > [lun giu 22 11:43:18 2015] Modules linked in:
> > [lun giu 22 11:43:18 2015]  bnep algif_skcipher cdc_wdm cdc_acm uvcvideo
> > videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev
> > btusb btbcm btintel bluetooth hp_wmi sparse_keymap intel_rapl iosf_mbi
> > x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_hdmi coretemp
> > kvm_intel
> > kvm snd_hda_codec_generic crct10dif_pclmul crc32_pclmul snd_hda_intel
> > iwldvm snd_hda_controller snd_hda_codec snd_hwdep psmouse snd_hda_core
> > iwlwifi snd_pcm snd_timer snd soundcore wmi hp_accel(+) hp_wireless
> > lis3lv02d sch_fq_codel dm_zero dm_persistent_data dm_service_time
> > dm_round_robin dm_queue_length dm_multipath dm_delay virtio_pci
> > virtio_blk virtio_balloon virtio_ring virtio fuse overlay linear raid0
> > dm_raid dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log ohci_pci
> > ohci_hcd uhci_hcd
> > [lun giu 22 11:43:18 2015] CPU: 1 PID: 2184 Comm: X Tainted: GW
> > 4.1.0 #1
> > [lun giu 22 11:43:18 2015] Hardware name: Hewlett-Packard HP EliteBook
> > Folio 9470m/18DF, BIOS 68IBD Ver. F.40 02/01/2013
> > [lun giu 22 11:43:18 2015]   0009
> > 818d8bfd 8800b226fd38
> > [lun giu 22 11:43:18 2015]  810c5426 880235437240
> > 8152870c 8800b2f16000
> > [lun giu 22 11:43:18 2015]  880234ffc000 8800b226fdf0
> > 8800b2c8f300 c0106407
> > [lun giu 22 11:43:18 2015] Call Trace:
> > [lun giu 22 11:43:18 2015]  [] ? dump_stack+0x47/0x67
> > [lun giu 22 11:43:18 2015]  [] ?
> > warn_slowpath_common+0x9d/0xb5
> > [lun giu 22 11:43:18 2015]  [] ?
> > drm_setversion+0xe1/0x179 [lun giu 22 11:43:18 2015] 
> > [] ? warn_slowpath_fmt+0x4a/0x4f [lun giu 22 11:43:18
> > 2015]  [] ? drm_setversion+0xe1/0x179 [lun giu 22
> > 11:43:18 2015]  [] ? drm_ioctl+0x376/0x3dd [lun giu 22
> > 11:43:18 2015]  [] ? drm_version+0x8d/0x8d [lun giu 22
> > 11:43:18 2015]  [] ? do_filp_open+0x30/0x74 [lun giu 22
> > 11:43:18 2015]  [] ? do_vfs_ioctl+0x379/0x431 [lun giu
> > 22 11:43:18 2015]  [] ? __fd_install+0x20/0x52 [lun giu
> > 22 11:43:18 2015]  [] ? do_sys_open+0x1c0/0x1d2 [lun
> > giu 22 11:43:18 2015]  [] ? SyS_ioctl+0x3e/0x5a [lun
> > giu 22 11:43:18 2015]  [] ?
> > system_call_fastpath+0x16/0x6e
> > [lun giu 22 11:43:18 2015] ---[ end trace 46364eedd82ef148 ]---
> > 
> > It does not seems to affect normal behaviour, but maybe the report could
> > be
> > interesting for maintainers.
> > 
> > Sorry if this has already been reported; if more information is needed
> > just
> > let me know (please CC: me as I'm not subscribed to lists.)
> 
> Which drm driver are you using? I didn't spot anything in your module list
> but might have missed it. Booting with drm.debug=0xe and grabbing dmesg
> will tell us for sure.
> -Daniel

Attached the drm.debug output, grepped for "drm". Let me know if I stripped 
something useful. 

Thanks,
-- 
Fabio

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Linux 4.1 WARNING in drm_ioctl.c

2015-06-22 Thread Fabio Coatti 
Hi All,

just compiled 4.1 and just got this warning, twice, in my dmesg:


[lun giu 22 11:43:18 2015] [ cut here ]
[lun giu 22 11:43:18 2015] WARNING: CPU: 1 PID: 2184 at 
drivers/gpu/drm/drm_ioctl.c:144 drm_setversion+0xe1/0x179()
[lun giu 22 11:43:18 2015] No drm_driver.set_busid() implementation provided 
by 0x81ec3980. Use drm_dev_set_unique() to set the unique name 
explicitly.
[lun giu 22 11:43:18 2015] Modules linked in:
[lun giu 22 11:43:18 2015]  bnep algif_skcipher cdc_wdm cdc_acm uvcvideo 
videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev btusb 
btbcm btintel bluetooth hp_wmi sparse_keymap intel_rapl iosf_mbi 
x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_hdmi coretemp kvm_intel 
kvm snd_hda_codec_generic crct10dif_pclmul crc32_pclmul snd_hda_intel iwldvm 
snd_hda_controller snd_hda_codec snd_hwdep psmouse snd_hda_core iwlwifi 
snd_pcm snd_timer snd soundcore wmi hp_accel(+) hp_wireless lis3lv02d 
sch_fq_codel dm_zero dm_persistent_data dm_service_time dm_round_robin 
dm_queue_length dm_multipath dm_delay virtio_pci virtio_blk virtio_balloon 
virtio_ring virtio fuse overlay linear raid0 dm_raid dm_snapshot dm_bufio 
dm_mirror dm_region_hash dm_log ohci_pci ohci_hcd uhci_hcd
[lun giu 22 11:43:18 2015] CPU: 1 PID: 2184 Comm: X Tainted: GW   
4.1.0 #1
[lun giu 22 11:43:18 2015] Hardware name: Hewlett-Packard HP EliteBook Folio 
9470m/18DF, BIOS 68IBD Ver. F.40 02/01/2013
[lun giu 22 11:43:18 2015]   0009 818d8bfd 
8800b226fd38
[lun giu 22 11:43:18 2015]  810c5426 880235437240 8152870c 
8800b2f16000
[lun giu 22 11:43:18 2015]  880234ffc000 8800b226fdf0 8800b2c8f300 
c0106407
[lun giu 22 11:43:18 2015] Call Trace:
[lun giu 22 11:43:18 2015]  [] ? dump_stack+0x47/0x67
[lun giu 22 11:43:18 2015]  [] ? 
warn_slowpath_common+0x9d/0xb5
[lun giu 22 11:43:18 2015]  [] ? drm_setversion+0xe1/0x179
[lun giu 22 11:43:18 2015]  [] ? warn_slowpath_fmt+0x4a/0x4f
[lun giu 22 11:43:18 2015]  [] ? drm_setversion+0xe1/0x179
[lun giu 22 11:43:18 2015]  [] ? drm_ioctl+0x376/0x3dd
[lun giu 22 11:43:18 2015]  [] ? drm_version+0x8d/0x8d
[lun giu 22 11:43:18 2015]  [] ? do_filp_open+0x30/0x74
[lun giu 22 11:43:18 2015]  [] ? do_vfs_ioctl+0x379/0x431
[lun giu 22 11:43:18 2015]  [] ? __fd_install+0x20/0x52
[lun giu 22 11:43:18 2015]  [] ? do_sys_open+0x1c0/0x1d2
[lun giu 22 11:43:18 2015]  [] ? SyS_ioctl+0x3e/0x5a
[lun giu 22 11:43:18 2015]  [] ? 
system_call_fastpath+0x16/0x6e
[lun giu 22 11:43:18 2015] ---[ end trace 46364eedd82ef148 ]---

It does not seems to affect normal behaviour, but maybe the report could be 
interesting for maintainers.

Sorry if this has already been reported; if more information is needed just 
let me know (please CC: me as I'm not subscribed to lists.)

Many thanks.

-- 
Fabio