On 2013/8/6 15:23, Yijing Wang wrote: > v1->v2: Update patch log, remove Joe's reported-by, because his problem > was mainly caused by BIOS incorrect setting. But this patch mainly > to fix the bug caused by device hot add. Conservatively, this > version only update the mps problem when hot add. When the device > mps < parent mps found, this patch try to update device mps. > It seems unlikely device mps > parent mps after hot add device. > So we don't care that situation. > > This patch need to be applied to stable 3.4+ In this case... > > Currently we don't update device's mps vaule when doing > pci device hot-add. The hot-added device's mps will be set > to default value (128B). But the upstream port device's mps > may be larger than 128B which was set by firmware during > system bootup. In this case the new added device may not > work normally. This patch try to update the hot added device > mps euqal to its parent mps, if device mpss < parent mps, > print warning. > > References: https://bugzilla.kernel.org/show_bug.cgi?id=60671 > Reported-by: Yijing Wang <wangyijing@xxxxxxxxxx> > Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx> > Cc: Jon Mason <jdmason@xxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx The better tag is: Cc: <stable@xxxxxxxxxxxxxxx> # 3.4+ Otherwise you won't be notified if it can be applied to the most recent stable version but failed in older versions. -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html