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rptun: add ns_match callback to resolve rptun deadlock

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thread A: accept -> net_lock -> socket_rpmsg_accept
          -> rpmsg_register_callabck -> rptun_lock
thread B: ns_bind -> rpmsg_socket_ns_bind -> get_tx_payload_buffer
          -> rptun_wait_tx -> usrsock_rpmsg_ept_cb -> usrsockdev_write
          -> net_lock -> deadlock

fix:
add ns_match callback

Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd
2022-06-06 16:38:11 +08:00
committed by Xiang Xiao
parent 033cd4d7df
commit 8a3683fb9f
15 changed files with 213 additions and 112 deletions
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include/nuttx/rptun/openamp.h
+5
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@@ -38,6 +38,9 @@
typedef void (*rpmsg_dev_cb_t)(FAR struct rpmsg_device *rdev,
FAR void *priv);
typedef bool (*rpmsg_match_cb_t)(FAR struct rpmsg_device *rdev,
FAR void *priv, FAR const char *name,
uint32_t dest);
typedef void (*rpmsg_bind_cb_t)(FAR struct rpmsg_device *rdev,
FAR void *priv, FAR const char *name,
uint32_t dest);
@@ -62,10 +65,12 @@ const char *rpmsg_get_cpuname(FAR struct rpmsg_device *rdev);
int rpmsg_register_callback(FAR void *priv,
rpmsg_dev_cb_t device_created,
rpmsg_dev_cb_t device_destroy,
rpmsg_match_cb_t ns_match,
rpmsg_bind_cb_t ns_bind);
void rpmsg_unregister_callback(FAR void *priv,
rpmsg_dev_cb_t device_created,
rpmsg_dev_cb_t device_destroy,
rpmsg_match_cb_t ns_match,
rpmsg_bind_cb_t ns_bind);
#ifdef __cplusplus