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cpu/esp: api change in esp_now_netdev::_recv

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Newest version of API requires to drop the frame when if parameter len is smaller than the received packet.
This commit is contained in:
Gunar Schorcht 2019-01-02 19:01:04 +01:00
parent 49c64c01a8
commit a36366f9a9
1 changed files with 2 additions and 0 deletions
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2
cpu/esp_common/esp-now/esp_now_netdev.c
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@ -577,6 +577,8 @@ static int _recv(netdev_t *netdev, void *buf, size_t len, void *info)
if (len < size) {
/* buffer is smaller than the number of received bytes */
DEBUG("[esp_now] No space in receive buffers\n");
/* newest API requires to drop the frame in that case */
ringbuffer_remove(&dev->rx_buf, 1 + size);
mutex_unlock(&dev->dev_lock);
return -ENOBUFS;
}