[RFC 6/6] intel/iavf: remove use of pthread_cancel
Stephen Hemminger
stephen at networkplumber.org
Wed Sep 24 18:51:13 CEST 2025
The iavf driver uses a pipe to communicate with control thread.
By closing the write side of the pipe, the main thread can
tell the control thread to exit without use of pthread_cancel.
Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
drivers/net/intel/iavf/iavf_vchnl.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/intel/iavf/iavf_vchnl.c b/drivers/net/intel/iavf/iavf_vchnl.c
index b1b7a5bf94..781bae11be 100644
--- a/drivers/net/intel/iavf/iavf_vchnl.c
+++ b/drivers/net/intel/iavf/iavf_vchnl.c
@@ -161,14 +161,14 @@ iavf_dev_event_handler_fini(void)
if (rte_atomic_fetch_sub_explicit(&handler->ndev, 1, rte_memory_order_relaxed) - 1 != 0)
return;
- int unused = pthread_cancel((pthread_t)handler->tid.opaque_id);
- RTE_SET_USED(unused);
- close(handler->fd[0]);
+ /* closing the write side of the pipe will cause read() to return 0 in thread */
close(handler->fd[1]);
- handler->fd[0] = -1;
handler->fd[1] = -1;
rte_thread_join(handler->tid, NULL);
+ close(handler->fd[0]);
+ handler->fd[0] = -1;
+
pthread_mutex_destroy(&handler->lock);
struct iavf_event_element *pos, *save_next;
--
2.47.3
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