| Message ID | 1568282211-24713-1-git-send-email-hayashi.kunihiko@socionext.com |
|---|---|
| State | New |
| Delegated to: | Lorenzo Pieralisi |
| Headers | show |
| Series | PCI: endpoint: Fix clearing start entry in configfs | expand |
Hi, Is there any comments about this? I think this fix needs to stop and restart endpoint controller using configfs 'logically' at least. Thank you, On Thu, 12 Sep 2019 18:56:51 +0900 <hayashi.kunihiko@socionext.com> wrote: > The value of 'start' entry is no change whenever writing 0 to configfs. > So the endpoint that stopped once can't restart. > > Fixes: d74679911610 ("PCI: endpoint: Introduce configfs entry for configuring EP functions") > Cc: Kishon Vijay Abraham I <kishon@ti.com> > Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> > --- > drivers/pci/endpoint/pci-ep-cfs.c | 1 + > 1 file changed, 1 insertion(+) > > Since the possibility of restarting endpoint is up to each controller, > if restart is prohibited on purpose for some reason, this patch can be > ignored. > > diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c > index d1288a0..4fead88 100644 > --- a/drivers/pci/endpoint/pci-ep-cfs.c > +++ b/drivers/pci/endpoint/pci-ep-cfs.c > @@ -58,6 +58,7 @@ static ssize_t pci_epc_start_store(struct config_item *item, const char *page, > > if (!start) { > pci_epc_stop(epc); > + epc_group->start = 0; > return len; > } > > -- > 2.7.4 --- Best Regards, Kunihiko Hayashi
diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c index d1288a0..4fead88 100644 --- a/drivers/pci/endpoint/pci-ep-cfs.c +++ b/drivers/pci/endpoint/pci-ep-cfs.c @@ -58,6 +58,7 @@ static ssize_t pci_epc_start_store(struct config_item *item, const char *page, if (!start) { pci_epc_stop(epc); + epc_group->start = 0; return len; }
The value of 'start' entry is no change whenever writing 0 to configfs. So the endpoint that stopped once can't restart. Fixes: d74679911610 ("PCI: endpoint: Introduce configfs entry for configuring EP functions") Cc: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> --- drivers/pci/endpoint/pci-ep-cfs.c | 1 + 1 file changed, 1 insertion(+) Since the possibility of restarting endpoint is up to each controller, if restart is prohibited on purpose for some reason, this patch can be ignored.