common/mlx5: replace strsep with strtok_r

strsep() is a non-standardized API (by C or POSIX) and thus it is
non-portable between different operating systems. Replace it with
strtok_r() which is standardized by the C standard, and hence also by
POSIX.
The replacement occurs in the code that extracts individual PCI class
names (e.g. class=net:vdpa:foo:bar).

Signed-off-by: Ophir Munk <ophirmu@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>

diff --git a/drivers/common/mlx5/mlx5_common_pci.c b/drivers/common/mlx5/mlx5_common_pci.c
index d4ff039..02417c6 100644 (file)
--- a/drivers/common/mlx5/mlx5_common_pci.c
+++ b/drivers/common/mlx5/mlx5_common_pci.c
@@ -72,6 +72,7 @@ bus_cmdline_options_handler(__rte_unused const char *key,
        int class_val;
        char *found;
        char *nstr;
+       char *refstr = NULL;
 
        *ret = 0;
        nstr = strdup(class_names);
@@ -80,21 +81,22 @@ bus_cmdline_options_handler(__rte_unused const char *key,
                return *ret;
        }
        nstr_org = nstr;
-       while (nstr) {
+       found = strtok_r(nstr, ":", &refstr);
+       if (!found)
+               goto err;
+       do {
                /* Extract each individual class name. Multiple
                 * class key,value is supplied as class=net:vdpa:foo:bar.
                 */
-               found = strsep(&nstr, ":");
-               if (!found)
-                       continue;
-               /* Check if its a valid class. */
                class_val = class_name_to_value(found);
+               /* Check if its a valid class. */
                if (class_val < 0) {
                        *ret = -EINVAL;
                        goto err;
                }
                *ret |= class_val;
-       }
+               found = strtok_r(NULL, ":", &refstr);
+       } while (found);
 err:
        free(nstr_org);
        if (*ret < 0)