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ethdev: report error on ring name truncation

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Currently this api doesn't report error if name is
truncated and so user is not sure about uniqueness
of name. This change reports error to help user.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
This commit is contained in:
Nithin Dabilpuram 2019-01-17 14:13:54 +00:00 committed by Ferruh Yigit
parent 48670ed6f7
commit e1e1c08a53
1 changed files with 8 additions and 2 deletions
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10
lib/librte_ethdev/rte_ethdev.c
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@ -3588,9 +3588,15 @@ rte_eth_dma_zone_reserve(const struct rte_eth_dev *dev, const char *ring_name,
{
char z_name[RTE_MEMZONE_NAMESIZE];
const struct rte_memzone *mz;
int rc;
snprintf(z_name, sizeof(z_name), "eth_p%d_q%d_%s",
dev->data->port_id, queue_id, ring_name);
rc = snprintf(z_name, sizeof(z_name), "eth_p%d_q%d_%s",
dev->data->port_id, queue_id, ring_name);
if (rc >= RTE_MEMZONE_NAMESIZE) {
RTE_ETHDEV_LOG(ERR, "ring name too long\n");
rte_errno = ENAMETOOLONG;
return NULL;
}
mz = rte_memzone_lookup(z_name);
if (mz)