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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2019-10-10 17:34:12 +0200
committerKeith Busch <kbusch@kernel.org>2019-10-14 23:27:01 +0900
commitac1c4e18858cb1da6abe1932a7ca001c37f62372 (patch)
treefd5d5f55819e3e916fdfdf31e69e078a853b3bcd
parentc1ac9a4b0797ca8bb4470f863a5f78ef1ab13bed (diff)
downloadblackbird-op-linux-ac1c4e18858cb1da6abe1932a7ca001c37f62372.tar.gz
blackbird-op-linux-ac1c4e18858cb1da6abe1932a7ca001c37f62372.zip
nvme-tcp: Initialize sk->sk_ll_usec only with NET_RX_BUSY_POLL
The access to sk->sk_ll_usec should be hidden behind CONFIG_NET_RX_BUSY_POLL like the definition of sk_ll_usec. Put access to ->sk_ll_usec behind CONFIG_NET_RX_BUSY_POLL. Fixes: 1a9460cef5711 ("nvme-tcp: support simple polling") Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
-rw-r--r--drivers/nvme/host/tcp.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 33de2fddfbb2..820dac10fa9e 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1386,7 +1386,9 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl,
queue->sock->sk->sk_data_ready = nvme_tcp_data_ready;
queue->sock->sk->sk_state_change = nvme_tcp_state_change;
queue->sock->sk->sk_write_space = nvme_tcp_write_space;
+#ifdef CONFIG_NET_RX_BUSY_POLL
queue->sock->sk->sk_ll_usec = 1;
+#endif
write_unlock_bh(&queue->sock->sk->sk_callback_lock);
return 0;
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