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authorDave Jiang <dave.jiang@intel.com>2023-08-22 09:05:02 -0700
committerJon Mason <jdmason@kudzu.us>2023-08-22 12:38:19 -0400
commit643982232860887fed493144957ea5794b6557d1 (patch)
treecf1d163baad1e20518161ab258d0d6759097eeeb /drivers/ntb
parent5a7693e6bbf19b22fd6c1d2c4b7beb0a03969e2c (diff)
downloadlwn-643982232860887fed493144957ea5794b6557d1.tar.gz
lwn-643982232860887fed493144957ea5794b6557d1.zip
ntb: Check tx descriptors outstanding instead of head/tail for tx queue
Use existing function ntb_transport_tx_free_entry() instead of open coding the check to see if there are outstanding tx descriptors. Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb')
-rw-r--r--drivers/ntb/ntb_transport.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 9532108d2dce..f9e7847a378e 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -1901,7 +1901,7 @@ err:
static int ntb_process_tx(struct ntb_transport_qp *qp,
struct ntb_queue_entry *entry)
{
- if (qp->tx_index == qp->remote_rx_info->entry) {
+ if (!ntb_transport_tx_free_entry(qp)) {
qp->tx_ring_full++;
return -EAGAIN;
}