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driver/serial: remove return value of up_putc()

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modify the prototype of up_putc(): remove the return value

The architecture code does not care about the return value of up_putc(), so removing it saves two statements:

Before:                                                    After:
de4c: e52de004  push  {lr}    @ (str lr, [sp, #-4]!)    |  de4c: e52de004  push  {lr}    @ (str lr, [sp, #-4]!)
de50: e24dd014  sub sp, sp, #20                         |  de50: e24dd014  sub sp, sp, #20
de54: e58d0004  str r0, [sp, #4]                        |  de54: e58d0004  str r0, [sp, #4]
de58: e30030f8  movw  r3, #248  @ 0xf8                  |  de58: e30030f8  movw  r3, #248  @ 0xf8
de5c: e3423000  movt  r3, #8192 @ 0x2000                |  de5c: e3423000  movt  r3, #8192 @ 0x2000
de60: e58d300c  str r3, [sp, #12]                       |  de60: e58d300c  str r3, [sp, #12]
de64: e59d1004  ldr r1, [sp, #4]                        |  de64: e59d1004  ldr r1, [sp, #4]
de68: e59d000c  ldr r0, [sp, #12]                       |  de68: e59d000c  ldr r0, [sp, #12]
de6c: ebfffe66  bl  d80c <pl011_putc>                   |  de6c: ebfffe66  bl  d80c <pl011_putc>
de70: e59d3004  ldr r3, [sp, #4]                        |  de70: e28dd014  add sp, sp, #20
de74: e1a00003  mov r0, r3                              |  de74: e49df004  pop {pc}    @ (ldr pc, [sp], #4)
de78: e28dd014  add sp, sp, #20                         |
de7c: e49df004  pop {pc}    @ (ldr pc, [sp], #4)        |

Signed-off-by: chao an <anchao@lixiang.com>
This commit is contained in:
chao an
2024-10-25 17:58:49 +08:00
committed by Xiang Xiao
parent d0f957ae85
commit c6591c0f49
115 changed files with 211 additions and 446 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/sparc/src/bm3803/bm3803-serial.c
+3 -6
View File
@@ -870,7 +870,7 @@ void sparc_serialinit(void)
*
****************************************************************************/
int up_putc(int ch)
void up_putc(int ch)
{
#ifdef HAVE_SERIAL_CONSOLE
struct uart_dev_s *dev = (struct uart_dev_s *)&CONSOLE_DEV;
@@ -880,7 +880,6 @@ int up_putc(int ch)
sparc_lowputc(ch);
up_restoreuartint(dev, imr);
#endif
return ch;
}
/****************************************************************************
@@ -902,9 +901,8 @@ void sparc_serialinit(void)
{
}
int up_putc(int ch)
void up_putc(int ch)
{
return ch;
}
#endif /* HAVE_UART_DEVICE */
@@ -918,12 +916,11 @@ int up_putc(int ch)
*
****************************************************************************/
int up_putc(int ch)
void up_putc(int ch)
{
#ifdef HAVE_SERIAL_CONSOLE
sparc_lowputc(ch);
#endif
return ch;
}
#endif /* USE_SERIALDRIVER */
arch/sparc/src/bm3823/bm3823-serial.c
+3 -6
View File
@@ -865,7 +865,7 @@ void sparc_serialinit(void)
*
****************************************************************************/
int up_putc(int ch)
void up_putc(int ch)
{
#ifdef HAVE_SERIAL_CONSOLE
struct uart_dev_s *dev = (struct uart_dev_s *)&CONSOLE_DEV;
@@ -875,7 +875,6 @@ int up_putc(int ch)
sparc_lowputc(ch);
up_restoreuartint(dev, imr);
#endif
return ch;
}
/****************************************************************************
@@ -897,9 +896,8 @@ void sparc_serialinit(void)
{
}
int up_putc(int ch)
void up_putc(int ch)
{
return ch;
}
#endif /* HAVE_UART_DEVICE */
@@ -913,12 +911,11 @@ int up_putc(int ch)
*
****************************************************************************/
int up_putc(int ch)
void up_putc(int ch)
{
#ifdef HAVE_SERIAL_CONSOLE
sparc_lowputc(ch);
#endif
return ch;
}
#endif /* USE_SERIALDRIVER */
arch/sparc/src/s698pm/s698pm-serial.c
+3 -6
View File
@@ -951,7 +951,7 @@ void sparc_serialinit(void)
*
****************************************************************************/
int up_putc(int ch)
void up_putc(int ch)
{
#ifdef HAVE_SERIAL_CONSOLE
struct uart_dev_s *dev = (struct uart_dev_s *)&CONSOLE_DEV;
@@ -961,7 +961,6 @@ int up_putc(int ch)
sparc_lowputc(ch);
up_restoreuartint(dev, imr);
#endif
return ch;
}
/****************************************************************************
@@ -983,9 +982,8 @@ void sparc_serialinit(void)
{
}
int up_putc(int ch)
void up_putc(int ch)
{
return ch;
}
#endif /* HAVE_UART_DEVICE */
@@ -999,12 +997,11 @@ int up_putc(int ch)
*
****************************************************************************/
int up_putc(int ch)
void up_putc(int ch)
{
#ifdef HAVE_SERIAL_CONSOLE
sparc_lowputc(ch);
#endif
return ch;
}
#endif /* USE_SERIALDRIVER */