[tty:tty-testing 23/75] drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
head:   82cfd2e62b354840af6a045e084f6e9e7c49584d
commit: 1997e9dfdc84c8f73d6fc318355cf9e313aba183 [23/75] serial_core: Un-ifdef sysrq SUPPORT_SYSRQ
config: arm-randconfig-a001-20191219 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 1997e9dfdc84c8f73d6fc318355cf9e313aba183
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

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

   In file included from include/linux/kernel.h:11:0,
                    from include/linux/list.h:9,
                    from include/linux/module.h:12,
                    from drivers/tty/serial/21285.c:7:
   drivers/tty/serial/21285.c: In function 'serial21285_stop_tx':
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
    #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
                                                       ^~~~
>> drivers/tty/serial/21285.c:60:2: note: in expansion of macro 'if'
     if (tx_enabled(port)) {
     ^~
>> drivers/tty/serial/21285.c:60:6: note: in expansion of macro 'tx_enabled'
     if (tx_enabled(port)) {
         ^~~~~~~~~~
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   include/linux/compiler.h:58:61: note: in definition of macro '__trace_if_var'
    #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
                                                                ^~~~
>> drivers/tty/serial/21285.c:60:2: note: in expansion of macro 'if'
     if (tx_enabled(port)) {
     ^~
>> drivers/tty/serial/21285.c:60:6: note: in expansion of macro 'tx_enabled'
     if (tx_enabled(port)) {
         ^~~~~~~~~~
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   include/linux/compiler.h:69:3: note: in definition of macro '__trace_if_value'
     (cond) ?     \
      ^~~~
   include/linux/compiler.h:56:28: note: in expansion of macro '__trace_if_var'
    #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
                               ^~~~~~~~~~~~~~
>> drivers/tty/serial/21285.c:60:2: note: in expansion of macro 'if'
     if (tx_enabled(port)) {
     ^~
>> drivers/tty/serial/21285.c:60:6: note: in expansion of macro 'tx_enabled'
     if (tx_enabled(port)) {
         ^~~~~~~~~~
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   drivers/tty/serial/21285.c:62:3: note: in expansion of macro 'tx_enabled'
      tx_enabled(port) = 0;
      ^~~~~~~~~~
   In file included from include/linux/kernel.h:11:0,
                    from include/linux/list.h:9,
                    from include/linux/module.h:12,
                    from drivers/tty/serial/21285.c:7:
   drivers/tty/serial/21285.c: In function 'serial21285_start_tx':
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
    #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
                                                       ^~~~
   drivers/tty/serial/21285.c:68:2: note: in expansion of macro 'if'
     if (!tx_enabled(port)) {
     ^~
   drivers/tty/serial/21285.c:68:7: note: in expansion of macro 'tx_enabled'
     if (!tx_enabled(port)) {
          ^~~~~~~~~~
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   include/linux/compiler.h:58:61: note: in definition of macro '__trace_if_var'
    #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
                                                                ^~~~
   drivers/tty/serial/21285.c:68:2: note: in expansion of macro 'if'
     if (!tx_enabled(port)) {
     ^~
   drivers/tty/serial/21285.c:68:7: note: in expansion of macro 'tx_enabled'
     if (!tx_enabled(port)) {
          ^~~~~~~~~~
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   include/linux/compiler.h:69:3: note: in definition of macro '__trace_if_value'
     (cond) ?     \
      ^~~~
   include/linux/compiler.h:56:28: note: in expansion of macro '__trace_if_var'
    #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
                               ^~~~~~~~~~~~~~
   drivers/tty/serial/21285.c:68:2: note: in expansion of macro 'if'
     if (!tx_enabled(port)) {
     ^~
   drivers/tty/serial/21285.c:68:7: note: in expansion of macro 'tx_enabled'
     if (!tx_enabled(port)) {
          ^~~~~~~~~~
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   drivers/tty/serial/21285.c:70:3: note: in expansion of macro 'tx_enabled'
      tx_enabled(port) = 1;
      ^~~~~~~~~~
   In file included from include/linux/kernel.h:11:0,
                    from include/linux/list.h:9,
                    from include/linux/module.h:12,
                    from drivers/tty/serial/21285.c:7:
   drivers/tty/serial/21285.c: In function 'serial21285_stop_rx':
   drivers/tty/serial/21285.c:45:41: error: subscripted value is neither array nor pointer nor vector
    #define rx_enabled(port) ((port)->unused[1])
                                            ^
   include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
    #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
                                                       ^~~~
   drivers/tty/serial/21285.c:76:2: note: in expansion of macro 'if'
     if (rx_enabled(port)) {
     ^~
>> drivers/tty/serial/21285.c:76:6: note: in expansion of macro 'rx_enabled'
     if (rx_enabled(port)) {
         ^~~~~~~~~~
   drivers/tty/serial/21285.c:45:41: error: subscripted value is neither array nor pointer nor vector
    #define rx_enabled(port) ((port)->unused[1])
                                            ^
   include/linux/compiler.h:58:61: note: in definition of macro '__trace_if_var'
    #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
                                                                ^~~~
   drivers/tty/serial/21285.c:76:2: note: in expansion of macro 'if'
     if (rx_enabled(port)) {
     ^~
>> drivers/tty/serial/21285.c:76:6: note: in expansion of macro 'rx_enabled'
     if (rx_enabled(port)) {
         ^~~~~~~~~~
   drivers/tty/serial/21285.c:45:41: error: subscripted value is neither array nor pointer nor vector
    #define rx_enabled(port) ((port)->unused[1])
                                            ^
   include/linux/compiler.h:69:3: note: in definition of macro '__trace_if_value'
     (cond) ?     \
      ^~~~
   include/linux/compiler.h:56:28: note: in expansion of macro '__trace_if_var'
    #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
                               ^~~~~~~~~~~~~~
   drivers/tty/serial/21285.c:76:2: note: in expansion of macro 'if'
     if (rx_enabled(port)) {
     ^~
>> drivers/tty/serial/21285.c:76:6: note: in expansion of macro 'rx_enabled'
     if (rx_enabled(port)) {
         ^~~~~~~~~~
   drivers/tty/serial/21285.c:45:41: error: subscripted value is neither array nor pointer nor vector
    #define rx_enabled(port) ((port)->unused[1])
                                            ^
   drivers/tty/serial/21285.c:78:3: note: in expansion of macro 'rx_enabled'
      rx_enabled(port) = 0;
      ^~~~~~~~~~
   drivers/tty/serial/21285.c: In function 'serial21285_startup':
>> drivers/tty/serial/21285.c:44:41: error: subscripted value is neither array nor pointer nor vector
    #define tx_enabled(port) ((port)->unused[0])
                                            ^
   drivers/tty/serial/21285.c:188:2: note: in expansion of macro 'tx_enabled'
     tx_enabled(port) = 1;
     ^~~~~~~~~~
   drivers/tty/serial/21285.c:45:41: error: subscripted value is neither array nor pointer nor vector
    #define rx_enabled(port) ((port)->unused[1])
                                            ^
   drivers/tty/serial/21285.c:189:2: note: in expansion of macro 'rx_enabled'
     rx_enabled(port) = 1;
     ^~~~~~~~~~

vim +44 drivers/tty/serial/21285.c

^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  @7  #include <linux/module.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16   8  #include <linux/tty.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16   9  #include <linux/ioport.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  10  #include <linux/init.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  11  #include <linux/console.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  12  #include <linux/device.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  13  #include <linux/tty_flip.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  14  #include <linux/serial_core.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  15  #include <linux/serial.h>
997302259f386b drivers/serial/21285.c     Russell King   2009-03-25  16  #include <linux/io.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  17  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  18  #include <asm/irq.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  19  #include <asm/mach-types.h>
9f97da78bf0182 drivers/tty/serial/21285.c David Howells  2012-03-28  20  #include <asm/system_info.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  21  #include <asm/hardware/dec21285.h>
a09e64fbc0094e drivers/serial/21285.c     Russell King   2008-08-05  22  #include <mach/hardware.h>
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  23  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  24  #define BAUD_BASE		(mem_fclk_21285/64)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  25  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  26  #define SERIAL_21285_NAME	"ttyFB"
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  27  #define SERIAL_21285_MAJOR	204
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  28  #define SERIAL_21285_MINOR	4
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  29  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  30  #define RXSTAT_DUMMY_READ	0x80000000
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  31  #define RXSTAT_FRAME		(1 << 0)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  32  #define RXSTAT_PARITY		(1 << 1)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  33  #define RXSTAT_OVERRUN		(1 << 2)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  34  #define RXSTAT_ANYERR		(RXSTAT_FRAME|RXSTAT_PARITY|RXSTAT_OVERRUN)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  35  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  36  #define H_UBRLCR_BREAK		(1 << 0)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  37  #define H_UBRLCR_PARENB		(1 << 1)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  38  #define H_UBRLCR_PAREVN		(1 << 2)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  39  #define H_UBRLCR_STOPB		(1 << 3)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  40  #define H_UBRLCR_FIFO		(1 << 4)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  41  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  42  static const char serial21285_name[] = "Footbridge UART";
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  43  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16 @44  #define tx_enabled(port)	((port)->unused[0])
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16 @45  #define rx_enabled(port)	((port)->unused[1])
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  46  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  47  /*
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  48   * The documented expression for selecting the divisor is:
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  49   *  BAUD_BASE / baud - 1
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  50   * However, typically BAUD_BASE is not divisible by baud, so
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  51   * we want to select the divisor that gives us the minimum
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  52   * error.  Therefore, we want:
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  53   *  int(BAUD_BASE / baud - 0.5) ->
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  54   *  int(BAUD_BASE / baud - (baud >> 1) / baud) ->
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  55   *  int((BAUD_BASE - (baud >> 1)) / baud)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  56   */
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  57  
b129a8ccd53f74 drivers/serial/21285.c     Russell King   2005-08-31  58  static void serial21285_stop_tx(struct uart_port *port)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  59  {
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16 @60  	if (tx_enabled(port)) {
cc20b900be7aa8 drivers/serial/21285.c     Simon Kagstrom 2010-01-11  61  		disable_irq_nosync(IRQ_CONTX);
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  62  		tx_enabled(port) = 0;
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  63  	}
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  64  }
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  65  
b129a8ccd53f74 drivers/serial/21285.c     Russell King   2005-08-31  66  static void serial21285_start_tx(struct uart_port *port)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  67  {
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  68  	if (!tx_enabled(port)) {
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  69  		enable_irq(IRQ_CONTX);
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  70  		tx_enabled(port) = 1;
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  71  	}
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  72  }
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  73  
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  74  static void serial21285_stop_rx(struct uart_port *port)
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  75  {
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16 @76  	if (rx_enabled(port)) {
cc20b900be7aa8 drivers/serial/21285.c     Simon Kagstrom 2010-01-11  77  		disable_irq_nosync(IRQ_CONRX);
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  78  		rx_enabled(port) = 0;
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  79  	}
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  80  }
^1da177e4c3f41 drivers/serial/21285.c     Linus Torvalds 2005-04-16  81  

:::::: The code at line 44 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation

Attachment: .config.gz
Description: application/gzip


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