netdev - [PATCH net-next 5/5] s390/qeth: remove check for packing mode in qeth_check_outbound

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Message-Id: <20211207090452.1155688-6-wintera@linux.ibm.com>
Date:   Tue,  7 Dec 2021 10:04:52 +0100
From:   Alexandra Winter <wintera@...ux.ibm.com>
To:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, linux-s390@...r.kernel.org,
        Heiko Carstens <hca@...ux.ibm.com>,
        Julian Wiedmann <jwi@...ux.ibm.com>,
        Alexandra Winter <wintera@...ux.ibm.com>
Subject: [PATCH net-next 5/5] s390/qeth: remove check for packing mode in qeth_check_outbound_queue()

From: Julian Wiedmann <jwi@...ux.ibm.com>

If qeth_check_outbound_queue() finds a partially filled TX buffer on
the queue and flushes it, then the queue _must_ have been in packing
mode.

Remove the redundant check when updating the relevant statistics.

Signed-off-by: Julian Wiedmann <jwi@...ux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@...ux.ibm.com>
Signed-off-by: Alexandra Winter <wintera@...ux.ibm.com>
---
 drivers/s390/net/qeth_core_main.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 093ee14e8051..c296e0556f49 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -3635,12 +3635,10 @@ static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
 	if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
 	    !atomic_read(&queue->set_pci_flags_count)) {
 		unsigned int index, flush_cnt;
-		bool q_was_packing;
 
 		spin_lock(&queue->lock);
 
 		index = queue->next_buf_to_fill;
-		q_was_packing = queue->do_pack;
 
 		flush_cnt = qeth_switch_to_nonpacking_if_needed(queue);
 		if (!flush_cnt && !atomic_read(&queue->set_pci_flags_count))
@@ -3648,8 +3646,7 @@ static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
 
 		if (flush_cnt) {
 			qeth_flush_buffers(queue, index, flush_cnt);
-			if (q_was_packing)
-				QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_cnt);
+			QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_cnt);
 		}
 
 		spin_unlock(&queue->lock);
-- 
2.32.0