net/mlx5: remove kernel version check

Kernel version check was introduced in
commit 3a49ffe38a95 ("net/mlx5: fix link status query")
due to a bug fixed by
commit ef09a7fc7620 ("net/mlx5: fix inconsistent link status query")

This patch restore the previous behavior as described in Linux API.

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index dd46124..26f13fb 100644 (file)
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -18,11 +18,9 @@
 #include <net/if.h>
 #include <sys/ioctl.h>
 #include <sys/socket.h>
-#include <sys/utsname.h>
 #include <netinet/in.h>
 #include <linux/ethtool.h>
 #include <linux/sockios.h>
-#include <linux/version.h>
 #include <fcntl.h>
 #include <stdalign.h>
 #include <sys/un.h>
@@ -734,20 +732,15 @@ mlx5_force_link_status_change(struct rte_eth_dev *dev, int status)
 int
 mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused)
 {
-       struct utsname utsname;
-       int ver[3];
        int ret;
        struct rte_eth_link dev_link = dev->data->dev_link;
 
-       if (uname(&utsname) == -1 ||
-           sscanf(utsname.release, "%d.%d.%d",
-                  &ver[0], &ver[1], &ver[2]) != 3 ||
-           KERNEL_VERSION(ver[0], ver[1], ver[2]) < KERNEL_VERSION(4, 9, 0))
-               ret = mlx5_link_update_unlocked_gset(dev);
-       else
+       ret = mlx5_link_update_unlocked_gset(dev);
+       if (ret) {
                ret = mlx5_link_update_unlocked_gs(dev);
-       if (ret)
-               return ret;
+               if (ret)
+                       return ret;
+       }
        /* If lsc interrupt is disabled, should always be ready for traffic. */
        if (!dev->data->dev_conf.intr_conf.lsc) {
                mlx5_link_start(dev);