Re: [PATCH] pci: Don't set RCB bit in LNKCTL if the upstream bridge hasn't

[Hannes Reinecke]

On 10/26/2016 03:53 PM, Johannes Thumshirn wrote:
> The Read Completion Boundary bit must only be set on a device or endpoint if
> it is set on the upstream bridge.
> 
> Fixes: 7a1562d4f ("PCI: Apply _HPX Link Control settings to all devices with a link")
> Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
> ---
>  drivers/pci/probe.c | 26 ++++++++++++++++++++++++--
>  1 file changed, 24 insertions(+), 2 deletions(-)
> 
This fixes a regression where the mlx4 driver would not load (and, in
fact, crash) on certain Ivybridge servers.

Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@xxxxxxx			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)