ACK: [PATCH][Zesty][SRU 1/1] UBUNTU: SAUCE: drm: hibmc: Use set_busid function from drm core

[Stefan Bader]

On 20.06.2017 05:53, Daniel Axtens wrote:
> BugLink: https://bugs.launchpad.net/bugs/1698700
> 
> Currently, calling drmGetBusid from libdrm on a hibmc VGA
> card returns a string like "0007:a1:00.0".
> 
> The busid reported by most cards begins with "pci:". For
> example, on an amd64 system, a VGA card reported
> "pci:0000:00:02.0".
> 
> The missing "pci:" prefix confuses Xorg and leads to crashes
> and other misbehaviour.[0]
> 
> Use the standard helper from the drm core to set the busid to
> include the "pci:" prefix. This is done by many other drivers.
> 
> With this patch, Xorg can be run successfully.
> 
> [0]: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991
> 
> Cc: Xinliang Liu <z.liuxinliang at hisilicon.com>
> Cc: Rongrong Zou <zourongrong at gmail.com>
> Signed-off-by: Daniel Axtens <dja at axtens.net>
Acked-by: Stefan Bader <stefan.bader at canonical.com>

> ---
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> index 7e2043f4348c..65e0b3c65fa3 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
> @@ -92,6 +92,7 @@ static struct drm_driver hibmc_driver = {
>  	.dumb_map_offset        = hibmc_dumb_mmap_offset,
>  	.dumb_destroy           = drm_gem_dumb_destroy,
>  	.irq_handler		= hibmc_drm_interrupt,
> +	.set_busid		= drm_pci_set_busid,
>  };
>  
>  static int __maybe_unused hibmc_pm_suspend(struct device *dev)
> 


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