Read dev_port with the EAL routine rather than opening the file and
parsing it with fscanf().

The value was read with fscanf("%d") and is now converted with base
0, so a value with a leading zero would parse as octal. The kernel
does not print dev_port with leading zeros.

Signed-off-by: Stephen Hemminger <[email protected]>
---
 drivers/net/mana/mana.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/net/mana/mana.c b/drivers/net/mana/mana.c
index 0b72f711a1..39bfb5b4b7 100644
--- a/drivers/net/mana/mana.c
+++ b/drivers/net/mana/mana.c
@@ -14,6 +14,7 @@
 #include <rte_kvargs.h>
 #include <rte_eal_paging.h>
 #include <rte_pci.h>
+#include <rte_sysfs.h>
 
 #include <infiniband/verbs.h>
 #include <infiniband/manadv.h>
@@ -1282,6 +1283,7 @@ get_port_mac(struct ibv_device *device, unsigned int port,
        DIR *dir;
        struct dirent *dent;
        unsigned int dev_port;
+       unsigned long val;
 
        MANA_MKSTR(path, "%s/device/net", device->ibdev_path);
 
@@ -1293,23 +1295,15 @@ get_port_mac(struct ibv_device *device, unsigned int 
port,
                char *name = dent->d_name;
                char *mac = NULL;
 
-               MANA_MKSTR(port_path, "%s/%s/dev_port", path, name);
-
                /* Ignore . and .. */
                if ((name[0] == '.') &&
                    ((name[1] == '\0') ||
                     ((name[1] == '.') && (name[2] == '\0'))))
                        continue;
 
-               file = fopen(port_path, "r");
-               if (!file)
-                       continue;
-
-               ret = fscanf(file, "%u", &dev_port);
-               fclose(file);
-
-               if (ret != 1)
+               if (rte_sysfs_parse_uint(&val, "%s/%s/dev_port", path, name) != 
0)
                        continue;
+               dev_port = val;
 
                /* Ethernet ports start at 0, IB port start at 1 */
                if (dev_port == port - 1) {
-- 
2.53.0

Reply via email to