linux-kernel - [PATCH 2/4] serial: amba-pl011: move variable into CONFIG_DMA

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Date: Sun,  7 Apr 2024 02:27:07 +0200
From: Lino Sanfilippo <l.sanfilippo@...bus.com>
To: gregkh@...uxfoundation.org,
	jirislaby@...nel.org
Cc: LinoSanfilippo@....de,
	lukas@...ner.de,
	p.rosenberger@...bus.com,
	ilpo.jarvinen@...ux.intel.com,
	linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	Lino Sanfilippo <l.sanfilippo@...bus.com>
Subject: [PATCH 2/4] serial: amba-pl011: move variable into CONFIG_DMA_ENGINE conditional

Variable dmacr is only used if DMA is enabled, so move it into the
CONFIG_DMA_ENGINE conditional.

Signed-off-by: Lino Sanfilippo <l.sanfilippo@...bus.com>
---
 drivers/tty/serial/amba-pl011.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 3d2dac0ebcde..349005e6ab9f 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -256,7 +256,6 @@ struct uart_amba_port {
 	const u16		*reg_offset;
 	struct clk		*clk;
 	const struct vendor_data *vendor;
-	unsigned int		dmacr;		/* dma control reg */
 	unsigned int		im;		/* interrupt mask */
 	unsigned int		old_status;
 	unsigned int		fifosize;	/* vendor-specific */
@@ -266,6 +265,7 @@ struct uart_amba_port {
 	unsigned int		rs485_tx_drain_interval; /* usecs */
 #ifdef CONFIG_DMA_ENGINE
 	/* DMA stuff */
+	unsigned int		dmacr;		/* dma control reg */
 	bool			using_tx_dma;
 	bool			using_rx_dma;
 	struct pl011_dmarx_data dmarx;
-- 
2.43.2