[intel-lts:pr/59 1/1] drivers/tty/serial/8250/8250_port.c:2054:25: warning: unused variable 'up'

[intel-lts:pr/59 1/1] drivers/tty/serial/8250/8250_port.c:2054:25: warning: unused variable 'up'

[kernel test robot]

tree:   https://github.com/intel/linux-intel-lts.git pr/59
head:   19ae9bc73680fd6c1c95edb5b7e2aaa790e7f011
commit: 20d2b572f04e7777c14c00eae743d7a4fd329653 [1/1] serial: 8250_port: Remove calls to runtime PM
config: sparc-randconfig-002-20250218 (https://download.01.org/0day-ci/archive/20250220/202502201313.wKrf30dc-lkp@intel.com/config)
compiler: sparc-linux-gcc (GCC) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250220/202502201313.wKrf30dc-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502201313.wKrf30dc-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   drivers/tty/serial/8250/8250_port.c: In function 'serial8250_get_poll_char':
>> drivers/tty/serial/8250/8250_port.c:2054:25: warning: unused variable 'up' [-Wunused-variable]
     struct uart_8250_port *up = up_to_u8250p(port);
                            ^~
--
   arch/sparc/kernel/head_32.o: in function `current_pc':
>> (.head.text+0x2040): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
   arch/sparc/kernel/head_32.o: in function `halt_notsup':
   (.head.text+0x2100): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
   arch/sparc/kernel/process_32.o:(.fixup+0x4): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
   arch/sparc/kernel/process_32.o:(.fixup+0xc): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
   arch/sparc/kernel/signal_32.o:(.fixup+0x0): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
   arch/sparc/kernel/signal_32.o:(.fixup+0x8): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
   arch/sparc/kernel/signal_32.o:(.fixup+0x10): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
   arch/sparc/kernel/signal_32.o:(.fixup+0x18): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
   arch/sparc/kernel/signal_32.o:(.fixup+0x20): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
   arch/sparc/kernel/signal_32.o:(.fixup+0x28): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
   arch/sparc/kernel/signal_32.o:(.fixup+0x30): additional relocation overflows omitted from the output


vim +/up +2054 drivers/tty/serial/8250/8250_port.c

b6830f6df8914fa Peter Hurley    2015-06-27  2045  
b6830f6df8914fa Peter Hurley    2015-06-27  2046  #ifdef CONFIG_CONSOLE_POLL
b6830f6df8914fa Peter Hurley    2015-06-27  2047  /*
b6830f6df8914fa Peter Hurley    2015-06-27  2048   * Console polling routines for writing and reading from the uart while
b6830f6df8914fa Peter Hurley    2015-06-27  2049   * in an interrupt or debug context.
b6830f6df8914fa Peter Hurley    2015-06-27  2050   */
b6830f6df8914fa Peter Hurley    2015-06-27  2051  
b6830f6df8914fa Peter Hurley    2015-06-27  2052  static int serial8250_get_poll_char(struct uart_port *port)
b6830f6df8914fa Peter Hurley    2015-06-27  2053  {
b6830f6df8914fa Peter Hurley    2015-06-27 @2054  	struct uart_8250_port *up = up_to_u8250p(port);
b6830f6df8914fa Peter Hurley    2015-06-27  2055  	unsigned char lsr;
b6830f6df8914fa Peter Hurley    2015-06-27  2056  
b6830f6df8914fa Peter Hurley    2015-06-27  2057  	lsr = serial_port_in(port, UART_LSR);
20d2b572f04e777 Andy Shevchenko 2016-11-16  2058  	if (!(lsr & UART_LSR_DR))
20d2b572f04e777 Andy Shevchenko 2016-11-16  2059  		return NO_POLL_CHAR;
b6830f6df8914fa Peter Hurley    2015-06-27  2060  
20d2b572f04e777 Andy Shevchenko 2016-11-16  2061  	return serial_port_in(port, UART_RX);
b6830f6df8914fa Peter Hurley    2015-06-27  2062  }
b6830f6df8914fa Peter Hurley    2015-06-27  2063  

:::::: The code at line 2054 was first introduced by commit
:::::: b6830f6df8914faae9561bb245860c21af9b9e9b serial: 8250: Split base port operations from universal driver

:::::: TO: Peter Hurley <peter@hurleysoftware.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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