From a82a312d8541b92b0c34403b8723c9caaec89ab7 Mon Sep 17 00:00:00 2001
From: David Ward <david.ward@gatech.edu>
Date: Tue, 8 Mar 2022 19:00:00 -0500
Subject: [PATCH] Remove unused functions which cause compiler warnings

---
 backend/epson2.c      | 15 ---------------
 backend/kvs20xx_opt.c |  5 -----
 backend/kvs40xx.c     |  5 -----
 backend/kvs40xx_opt.c |  5 -----
 sanei/sanei_pio.c     | 34 ----------------------------------
 5 files changed, 64 deletions(-)

diff --git a/backend/epson2.c b/backend/epson2.c
index 3efbfa3ee..cfc2aca00 100644
--- a/backend/epson2.c
+++ b/backend/epson2.c
@@ -2297,21 +2297,6 @@ sane_start(SANE_Handle handle)
 	return status;
 }
 
-static inline int
-get_color(int status)
-{
-	switch ((status >> 2) & 0x03) {
-	case 1:
-		return 1;
-	case 2:
-		return 0;
-	case 3:
-		return 2;
-	default:
-		return 0;	/* required to make the compiler happy */
-	}
-}
-
 /* this moves data from our buffers to SANE */
 
 SANE_Status
diff --git a/backend/kvs20xx_opt.c b/backend/kvs20xx_opt.c
index 3e8276452..229bf851f 100644
--- a/backend/kvs20xx_opt.c
+++ b/backend/kvs20xx_opt.c
@@ -673,11 +673,6 @@ mm2scanner_units (unsigned mm)
 {
   return mm * 12000 / 254;
 }
-static inline unsigned
-scanner_units2mm (unsigned u)
-{
-  return u * 254 / 12000;
-}
 
 void
 kvs20xx_init_window (struct scanner *s, struct window *wnd, int wnd_id)
diff --git a/backend/kvs40xx.c b/backend/kvs40xx.c
index 230bdc293..ce1c055cf 100644
--- a/backend/kvs40xx.c
+++ b/backend/kvs40xx.c
@@ -118,11 +118,6 @@ static inline void buf_set_st(struct buf *b, SANE_Status st)
 	pthread_mutex_unlock(&b->mu);
 }
 
-static inline void buf_cancel(struct buf *b)
-{
-	buf_set_st(b, SANE_STATUS_CANCELLED);
-}
-
 static inline void push_buf(struct buf *b, SANE_Int sz)
 {
 	pthread_mutex_lock(&b->mu);
diff --git a/backend/kvs40xx_opt.c b/backend/kvs40xx_opt.c
index 8c3771141..2d8d870c9 100644
--- a/backend/kvs40xx_opt.c
+++ b/backend/kvs40xx_opt.c
@@ -29,11 +29,6 @@ mm2scanner_units (unsigned mm)
 {
   return (mm * 12000 / 254.0 + .5);
 }
-static inline unsigned
-scanner_units2mm (unsigned u)
-{
-  return (u * 254.0 / 12000 + .5);
-}
 struct restriction
 {
   unsigned ux, uy, ux_pix, uy_pix;
diff --git a/sanei/sanei_pio.c b/sanei/sanei_pio.c
index 4f2d89958..cd379ddb8 100644
--- a/sanei/sanei_pio.c
+++ b/sanei/sanei_pio.c
@@ -131,8 +131,6 @@ static PortRec port[] =
 
 extern int setuid (uid_t);
 
-static inline int pio_outb (const Port port, u_char val, u_long addr);
-static inline int pio_inb (const Port port, u_char * val, u_long addr);
 static inline int pio_wait (const Port port, u_char val, u_char mask);
 static inline void pio_ctrl (const Port port, u_char val);
 static inline void pio_delay (const Port port);
@@ -142,38 +140,6 @@ static int pio_write (const Port port, const u_char * buf, int n);
 static int pio_read (const Port port, u_char * buf, int n);
 static int pio_open (const char *dev, SANE_Status * status);
 
-static inline int
-pio_outb (const Port port, u_char val, u_long addr)
-{
-
-  if (-1 == port->fd)
-    sanei_outb (addr, val);
-  else
-    {
-      if (addr != (u_long)lseek (port->fd, addr, SEEK_SET))
-	return -1;
-      if (1 != write (port->fd, &val, 1))
-	return -1;
-    }
-  return 0;
-}
-
-static inline int
-pio_inb (const Port port, u_char * val, u_long addr)
-{
-
-  if (-1 == port->fd)
-    *val = sanei_inb (addr);
-  else
-    {
-      if (addr != (u_long)lseek (port->fd, addr, SEEK_SET))
-	return -1;
-      if (1 != read (port->fd, val, 1))
-	return -1;
-    }
-  return 0;
-}
-
 static inline int
 pio_wait (const Port port, u_char val, u_char mask)
 {