:::::: 
:::::: Manual check reason: "low confidence static check warning: drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Trying to use reserved word 'void' as identifier"
:::::: 

BCC: lkp(a)intel.com
CC: kbuild-all(a)lists.01.org
In-Reply-To: <20220901110657.3305-3-jslaby@suse.cz>
References: <20220901110657.3305-3-jslaby@suse.cz>
TO: Jiri Slaby <jslaby@suse.cz>

Hi Jiri,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tty/tty-testing]
[also build test WARNING on usb/usb-testing shawnguo/for-next linus/master v6.0-rc3 next-20220901]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Jiri-Slaby/tty-TX-helpers/20220901-190806
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
:::::: branch date: 3 days ago
:::::: commit date: 3 days ago
config: m68k-randconfig-s031-20220904
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/393b592949b2c633992ae9bdf00d3cffdd9a85d7
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jiri-Slaby/tty-TX-helpers/20220901-190806
        git checkout 393b592949b2c633992ae9bdf00d3cffdd9a85d7
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k SHELL=/bin/bash drivers/tty/serial/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

sparse warnings: (new ones prefixed by >>)
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got __VA_OPT__
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got ;
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Trying to use reserved word 'for' as identifier
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got &&
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ) in nested declarator
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got {
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got (
>> drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Trying to use reserved word 'void' as identifier
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got ->
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Trying to use reserved word 'continue' as identifier
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got }
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got (
>> drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Trying to use reserved word 'void' as identifier
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got ->
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got }
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got <
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Trying to use reserved word 'if' as identifier
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got ==
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Trying to use reserved word 'if' as identifier
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got }
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: Expected ;@the end of type declaration
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: got }
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: symbol 'true' redeclared with different type (different signedness):
   drivers/tty/serial/vt8500_serial.c:197:8: sparse:    int [addressable] [toplevel] true
   drivers/tty/serial/vt8500_serial.c: note: in included file (through include/uapi/linux/posix_types.h, include/uapi/linux/types.h, include/linux/types.h, ...):
   include/linux/stddef.h:12:9: sparse: note: previously declared as:
   include/linux/stddef.h:12:9: sparse:    unsigned int enum <noident> [toplevel] true
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: undefined identifier 'xmit'
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: undefined identifier 'xmit'
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: symbol 'ch' redeclared with different type (different type sizes):
   drivers/tty/serial/vt8500_serial.c:197:8: sparse:    int [addressable] [toplevel] ch
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: note: previously declared as:
   drivers/tty/serial/vt8500_serial.c:197:8: sparse:    unsigned char [addressable] [toplevel] [usertype] ch
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: cannot dereference this type
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: cannot dereference this type
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: sparse: symbol 'pending' redeclared with different type (different signedness):
   drivers/tty/serial/vt8500_serial.c:197:8: sparse:    int [addressable] [toplevel] pending
   drivers/tty/serial/vt8500_serial.c:197:8: sparse: note: previously declared as:
   drivers/tty/serial/vt8500_serial.c:197:8: sparse:    unsigned int [addressable] [toplevel] pending
--
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got __VA_OPT__
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got ;
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Trying to use reserved word 'for' as identifier
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got &&
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ) in nested declarator
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got {
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got (
>> drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Trying to use reserved word 'void' as identifier
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got ->
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Trying to use reserved word 'continue' as identifier
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got }
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got (
>> drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Trying to use reserved word 'void' as identifier
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got ->
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got }
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got <
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Trying to use reserved word 'if' as identifier
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got ==
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Trying to use reserved word 'if' as identifier
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got }
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: Expected ;@the end of type declaration
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: got }
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: symbol 'true' redeclared with different type (different signedness):
   drivers/tty/serial/lantiq.c:149:8: sparse:    int [addressable] [toplevel] true
   drivers/tty/serial/lantiq.c: note: in included file (through include/uapi/linux/posix_types.h, include/uapi/linux/types.h, include/linux/types.h, ...):
   include/linux/stddef.h:12:9: sparse: note: previously declared as:
   include/linux/stddef.h:12:9: sparse:    unsigned int enum <noident> [toplevel] true
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: undefined identifier 'xmit'
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: undefined identifier 'xmit'
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: symbol 'ch' redeclared with different type (different type sizes):
   drivers/tty/serial/lantiq.c:149:8: sparse:    int [addressable] [toplevel] ch
   drivers/tty/serial/lantiq.c:149:8: sparse: note: previously declared as:
   drivers/tty/serial/lantiq.c:149:8: sparse:    unsigned char [addressable] [toplevel] [usertype] ch
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: cannot dereference this type
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: cannot dereference this type
   drivers/tty/serial/lantiq.c:149:8: sparse: sparse: symbol 'pending' redeclared with different type (different signedness):
   drivers/tty/serial/lantiq.c:149:8: sparse:    int [addressable] [toplevel] pending
   drivers/tty/serial/lantiq.c:149:8: sparse: note: previously declared as:
   drivers/tty/serial/lantiq.c:149:8: sparse:    unsigned int [addressable] [toplevel] pending
--
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got __VA_OPT__
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got ;
>> drivers/tty/serial/mcf.c:327:8: sparse: sparse: Trying to use reserved word 'for' as identifier
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got &&
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got }
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ) in nested declarator
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got {
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got (
>> drivers/tty/serial/mcf.c:327:8: sparse: sparse: Trying to use reserved word 'void' as identifier
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got ->
>> drivers/tty/serial/mcf.c:327:8: sparse: sparse: Trying to use reserved word 'continue' as identifier
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got }
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got (
>> drivers/tty/serial/mcf.c:327:8: sparse: sparse: Trying to use reserved word 'void' as identifier
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ; at end of declaration
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got ->
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got }
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got <
>> drivers/tty/serial/mcf.c:327:8: sparse: sparse: Trying to use reserved word 'if' as identifier
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ) in function declarator
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got ==
>> drivers/tty/serial/mcf.c:327:8: sparse: sparse: Trying to use reserved word 'if' as identifier
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got }
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: Expected ; at the end of type declaration
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: got }
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: symbol 'true' redeclared with different type (different signedness):
>> drivers/tty/serial/mcf.c:327:8: sparse:    int [addressable] [toplevel] true
   drivers/tty/serial/mcf.c: note: in included file (through include/uapi/linux/posix_types.h, include/uapi/linux/types.h, include/linux/types.h, ...):
   include/linux/stddef.h:12:9: sparse: note: previously declared as:
   include/linux/stddef.h:12:9: sparse:    unsigned int enum <noident> [toplevel] true
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: undefined identifier 'xmit'
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: undefined identifier 'xmit'
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: symbol 'ch' redeclared with different type (different type sizes):
>> drivers/tty/serial/mcf.c:327:8: sparse:    int [addressable] [toplevel] ch
   drivers/tty/serial/mcf.c:327:8: sparse: note: previously declared as:
>> drivers/tty/serial/mcf.c:327:8: sparse:    unsigned char [addressable] [toplevel] [usertype] ch
>> drivers/tty/serial/mcf.c:327:8: sparse: sparse: cannot dereference this type
>> drivers/tty/serial/mcf.c:327:8: sparse: sparse: cannot dereference this type
   drivers/tty/serial/mcf.c:327:8: sparse: sparse: symbol 'pending' redeclared with different type (different signedness):
>> drivers/tty/serial/mcf.c:327:8: sparse:    int [addressable] [toplevel] pending
   drivers/tty/serial/mcf.c:327:8: sparse: note: previously declared as:
>> drivers/tty/serial/mcf.c:327:8: sparse:    unsigned int [addressable] [toplevel] pending

vim +/void +197 drivers/tty/serial/vt8500_serial.c

304e12665a4a7b drivers/serial/vt8500_serial.c     Alexey Charkov 2010-11-08  196  
393b592949b2c6 drivers/tty/serial/vt8500_serial.c Jiri Slaby     2022-09-01 @197  static DEFINE_UART_PORT_TX_HELPER(handle_tx, port, ch,
393b592949b2c6 drivers/tty/serial/vt8500_serial.c Jiri Slaby     2022-09-01  198  		vt8500_tx_empty(port),
393b592949b2c6 drivers/tty/serial/vt8500_serial.c Jiri Slaby     2022-09-01  199  		writeb(ch, port->membase + VT8500_TXFIFO));
304e12665a4a7b drivers/serial/vt8500_serial.c     Alexey Charkov 2010-11-08  200  

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