[PATCH 5.4 105/344] NFC: port100: Convert cpu_to_le16(le16_to_cpu(E1) + E2) to use le16_add_cpu().

Greg Kroah-Hartman
2020-02-21T08:06:37Z

From: Mao Wenan <maowenan@huawei.com>

[ Upstream commit 718eae277e62a26e5862eb72a830b5e0fe37b04a ]

Convert cpu_to_le16(le16_to_cpu(frame->datalen) + len) to
use le16_add_cpu(), which is more concise and does the same thing.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nfc/port100.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index 604dba4f18afd..8e4d355dc3aec 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -565,7 +565,7 @@ static void port100_tx_update_payload_len(void *_frame, int len)
{
struct port100_frame *frame = _frame;

- frame->datalen = cpu_to_le16(le16_to_cpu(frame->datalen) + len);
+ le16_add_cpu(&frame->datalen, len);
}

static bool port100_rx_frame_is_valid(void *_frame)
--
2.20.1