Re: [PATCH rdma-next] RDMA/hfi1: Use PCI-ID as an identification in debugfs

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On Tue, Dec 11, 2018 at 07:03:46AM -0500, Dennis Dalessandro wrote:
> On 12/11/2018 6:36 AM, Yuval Shaia wrote:
> > On Tue, Dec 11, 2018 at 12:06:30PM +0200, Leon Romanovsky wrote:
> > > From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> > >
> > > Update hfi1 to use PCI-IDs as an identification in debugfs, instead
> > > of device name which can be changed after user executes device rename.
> > >
> > > Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> > > ---
> > >   drivers/infiniband/hw/hfi1/debugfs.c | 11 ++++++-----
> > >   1 file changed, 6 insertions(+), 5 deletions(-)
> > >
> > > diff --git a/drivers/infiniband/hw/hfi1/debugfs.c b/drivers/infiniband/hw/hfi1/debugfs.c
> > > index 0a557795563c..54b579d8ec07 100644
> > > --- a/drivers/infiniband/hw/hfi1/debugfs.c
> > > +++ b/drivers/infiniband/hw/hfi1/debugfs.c
> > > @@ -1166,23 +1166,24 @@ void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd)
> > >   	char name[sizeof("port0counters") + 1];
> > >   	char link[10];
> > >   	struct hfi1_devdata *dd = dd_from_dev(ibd);
> > > +	struct pci_dev *pdev = dd->pcidev;
> > >   	struct hfi1_pportdata *ppd;
> > >   	int unit = dd->unit;
> > >   	int i, j;
> > >
> > >   	if (!hfi1_dbg_root)
> > >   		return;
> > > -	snprintf(name, sizeof(name), "%s_%d", class_name(), unit);
> > > +
> > >   	snprintf(link, sizeof(link), "%d", unit);
> > > -	ibd->hfi1_ibdev_dbg = debugfs_create_dir(name, hfi1_dbg_root);
> > > +	ibd->hfi1_ibdev_dbg = debugfs_create_dir(pci_name(pdev), hfi1_dbg_root);
> > >   	if (!ibd->hfi1_ibdev_dbg) {
> > > -		pr_warn("create of %s failed\n", name);
> > > +		pr_warn("create of %s failed\n", pci_name(pdev));
> > >   		return;
> > >   	}
> > >   	ibd->hfi1_ibdev_link =
> > > -		debugfs_create_symlink(link, hfi1_dbg_root, name);
> > > +		debugfs_create_symlink(link, hfi1_dbg_root, pci_name(pdev));
> > >   	if (!ibd->hfi1_ibdev_link) {
> > > -		pr_warn("create of %s symlink failed\n", name);
> > > +		pr_warn("create of %s symlink failed\n", pci_name(pdev));
> > >   		return;
> > >   	}
> > >   	DEBUGFS_SEQ_FILE_CREATE(opcode_stats, ibd->hfi1_ibdev_dbg, ibd);
> >
> > Reviewed-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
> >
>
> Nak for now. This isn't quite what we have in mind. Patch is on the way,
> going through review and testing. Will post soon to for-next.

Awesome, can you shed the light and summarize why this patch isn't good
fit for you?

Thanks

>
> -Denny
>

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