The pci bdf number check is added for qos written by using the pci api.
Directly get the devfn by pci_dev, so delete some redundant code.
And use the kstrtoul instead of sscanf to simplify code.
Signed-off-by: Kai Ye <yekai13@xxxxxxxxxx>
---
drivers/crypto/hisilicon/qm.c | 37 ++++++++++++-----------------------
1 file changed, 12 insertions(+), 25 deletions(-)
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 5d79e9f0e7e1..80eeb966cf89 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -4589,49 +4589,36 @@ static ssize_t qm_algqos_read(struct file *filp, char __user *buf,
return ret;
}
-static ssize_t qm_qos_value_init(const char *buf, unsigned long *val)
-{
- int buflen = strlen(buf);
- int ret, i;
-
- for (i = 0; i < buflen; i++) {
- if (!isdigit(buf[i]))
- return -EINVAL;
- }
-
- ret = sscanf(buf, "%lu", val);
- if (ret != QM_QOS_VAL_NUM)
- return -EINVAL;
-
- return 0;
-}
-
static ssize_t qm_get_qos_value(struct hisi_qm *qm, const char *buf,
unsigned long *val,
unsigned int *fun_index)
{
+ struct bus_type *bus_type = qm->pdev->dev.bus;
char tbuf_bdf[QM_DBG_READ_LEN] = {0};
char val_buf[QM_DBG_READ_LEN] = {0};
- u32 tmp1, device, function;
- int ret, bus;
+ struct pci_dev *pdev;
+ struct device *dev;
+ int ret;
ret = sscanf(buf, "%s %s", tbuf_bdf, val_buf);
if (ret != QM_QOS_PARAM_NUM)
return -EINVAL;
- ret = qm_qos_value_init(val_buf, val);
+ ret = kstrtoul(val_buf, 10, val);
if (ret || *val == 0 || *val > QM_QOS_MAX_VAL) {
pci_err(qm->pdev, "input qos value is error, please set 1~1000!\n");
return -EINVAL;
}
- ret = sscanf(tbuf_bdf, "%u:%x:%u.%u", &tmp1, &bus, &device, &function);
- if (ret != QM_QOS_BDF_PARAM_NUM) {
- pci_err(qm->pdev, "input pci bdf value is error!\n");
- return -EINVAL;
+ dev = bus_find_device_by_name(bus_type, NULL, tbuf_bdf);
+ if (!dev) {
+ pci_err(qm->pdev, "input pci bdf number is error!\n");
+ return -ENODEV;
}
- *fun_index = PCI_DEVFN(device, function);
+ pdev = container_of(dev, struct pci_dev, dev);
+
+ *fun_index = pdev->devfn;
return 0;
}
--
2.17.1
