[dpdk-dev] [PATCH] net/ixgbe: prevent duplicate callback on list
E. Scott Daniels
daniels at research.att.com
Thu Oct 20 00:23:07 CEST 2016
This change prevents the attempt to add a structure which is
already on the callback list. If a struct with matching
parameters is found on the list, then no action is taken. If
a struct with matching parameters is found on the list, then
no action is taken.
Signed-off-by: E. Scott Daniels <daniels at research.att.com>
---
lib/librte_ether/rte_ethdev.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 0d9d9c1..fde8112 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -2449,14 +2449,15 @@ rte_eth_dev_callback_register(uint8_t port_id,
}
/* create a new callback. */
- if (user_cb == NULL)
+ if (user_cb == NULL) {
user_cb = rte_zmalloc("INTR_USER_CALLBACK",
sizeof(struct rte_eth_dev_callback), 0);
- if (user_cb != NULL) {
- user_cb->cb_fn = cb_fn;
- user_cb->cb_arg = cb_arg;
- user_cb->event = event;
- TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
+ if (user_cb != NULL) {
+ user_cb->cb_fn = cb_fn;
+ user_cb->cb_arg = cb_arg;
+ user_cb->event = event;
+ TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
+ }
}
rte_spinlock_unlock(&rte_eth_dev_cb_lock);
--
1.9.1
More information about the dev
mailing list