[PATCH v1 02/12] serial: cpm_uart: Remove stale prototypes and table and macros

Christophe Leroy christophe.leroy at csgroup.eu
Thu Aug 3 23:56:43 AEST 2023


Those functions were removed by commit 0b2a2e5b7747 ("cpm_uart: Remove
!CONFIG_PPC_CPM_NEW_BINDING code"). Remove stale prototypes.

UART_SMC{1..2} and UART_SCC{1..4} and SCC_WAIT_CLOSING macros are not
used anymore since the above commit.

cpm_uart_ports[] isn't used outside cpm_uart_core.c since the
same commit, so make it static.

cpm_uart_init_smc() and cpm_uart_init_scc() don't need a forward

FLAG_DISCARDING and IS_DISCARDING have never been used since at
least 2.6.12 and the start of git repository for kernel.

Signed-off-by: Christophe Leroy <christophe.leroy at csgroup.eu>
 drivers/tty/serial/cpm_uart/cpm_uart.h      | 21 ---------------------
 drivers/tty/serial/cpm_uart/cpm_uart_core.c |  4 +---
 2 files changed, 1 insertion(+), 24 deletions(-)

diff --git a/drivers/tty/serial/cpm_uart/cpm_uart.h b/drivers/tty/serial/cpm_uart/cpm_uart.h
index 46c03ed71c31..687b48fc6fb6 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart.h
+++ b/drivers/tty/serial/cpm_uart/cpm_uart.h
@@ -25,18 +25,9 @@ struct gpio_desc;
 #define SERIAL_CPM_MINOR	46
 #define IS_SMC(pinfo)		(pinfo->flags & FLAG_SMC)
-#define IS_DISCARDING(pinfo)	(pinfo->flags & FLAG_DISCARDING)
-#define FLAG_DISCARDING	0x00000004	/* when set, don't discard */
 #define FLAG_SMC	0x00000002
 #define FLAG_CONSOLE	0x00000001
-#define UART_SMC1	fsid_smc1_uart
-#define UART_SMC2	fsid_smc2_uart
-#define UART_SCC1	fsid_scc1_uart
-#define UART_SCC2	fsid_scc2_uart
-#define UART_SCC3	fsid_scc3_uart
-#define UART_SCC4	fsid_scc4_uart
 #define UART_NR		fs_uart_nr
 #define RX_NUM_FIFO	4
@@ -44,8 +35,6 @@ struct gpio_desc;
 #define TX_NUM_FIFO	4
 #define TX_BUF_SIZE	32
-#define SCC_WAIT_CLOSING 100
 #define GPIO_CTS	0
 #define GPIO_RTS	1
 #define GPIO_DCD	2
@@ -85,24 +74,14 @@ struct uart_cpm_port {
 	struct gpio_desc	*gpios[NUM_GPIOS];
-extern struct uart_cpm_port cpm_uart_ports[UART_NR];
 /* these are located in their respective files */
 void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd);
 void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port,
 				struct device_node *np);
 void cpm_uart_unmap_pram(struct uart_cpm_port *port, void __iomem *pram);
-int cpm_uart_init_portdesc(void);
 int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con);
 void cpm_uart_freebuf(struct uart_cpm_port *pinfo);
-void smc1_lineif(struct uart_cpm_port *pinfo);
-void smc2_lineif(struct uart_cpm_port *pinfo);
-void scc1_lineif(struct uart_cpm_port *pinfo);
-void scc2_lineif(struct uart_cpm_port *pinfo);
-void scc3_lineif(struct uart_cpm_port *pinfo);
-void scc4_lineif(struct uart_cpm_port *pinfo);
    virtual to phys transtalion
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 71366a4cea22..d804dd4019c0 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -48,8 +48,6 @@
 static int  cpm_uart_tx_pump(struct uart_port *port);
-static void cpm_uart_init_smc(struct uart_cpm_port *pinfo);
-static void cpm_uart_init_scc(struct uart_cpm_port *pinfo);
 static void cpm_uart_initbd(struct uart_cpm_port *pinfo);
@@ -1128,7 +1126,7 @@ static const struct uart_ops cpm_uart_pops = {
-struct uart_cpm_port cpm_uart_ports[UART_NR];
+static struct uart_cpm_port cpm_uart_ports[UART_NR];
 static int cpm_uart_init_port(struct device_node *np,
                               struct uart_cpm_port *pinfo)

More information about the Linuxppc-dev mailing list