| Message ID | 20230314044623.10254-3-manivannan.sadhasivam@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add support for MHI Endpoint function driver | expand |
diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c index 4b8ac0ac84d5..62c8e09c59f4 100644 --- a/drivers/pci/endpoint/pci-ep-cfs.c +++ b/drivers/pci/endpoint/pci-ep-cfs.c @@ -178,6 +178,9 @@ static ssize_t pci_epc_start_store(struct config_item *item, const char *page, if (kstrtobool(page, &start) < 0) return -EINVAL; + if (WARN_ON_ONCE(start == epc_group->start)) + return 0; + if (!start) { pci_epc_stop(epc); epc_group->start = 0;
When the EPC is started or stopped multiple times from configfs, just emit a once time warning and return. There is no need to call the EPC start/stop functions in those cases. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- drivers/pci/endpoint/pci-ep-cfs.c | 3 +++ 1 file changed, 3 insertions(+)