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* [dpdk-dev] [PATCH v1] common/mlx5: replace strsep with strtok_r
@ 2020-08-05  8:56 Ophir Munk
  0 siblings, 0 replies; only message in thread
From: Ophir Munk @ 2020-08-05  8:56 UTC (permalink / raw)
  To: dev, Raslan Darawsheh; +Cc: Ophir Munk

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>
---
 drivers/common/mlx5/mlx5_common_pci.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/common/mlx5/mlx5_common_pci.c b/drivers/common/mlx5/mlx5_common_pci.c
index d4ff039..02417c6 100644
--- 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)
-- 
2.8.4


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2020-08-05  8:56 [dpdk-dev] [PATCH v1] common/mlx5: replace strsep with strtok_r Ophir Munk

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