Hi Al,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   0044cdeb731313f20b63cb5644de7588731de32b
commit: a0d32ad366bb4235267380b341fcae8307f51044 switch 
sparc_remap_file_pages() to SYSCALL_DEFINE
date:   2 months ago
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 8.1.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout a0d32ad366bb4235267380b341fcae8307f51044
        # save the attached .config to linux build tree
        make.cross ARCH=sparc 

All errors (new ones prefixed by >>):

   In file included from arch/sparc/kernel/sys_sparc_32.c:21:
   include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions 
of incompatible types 'long int(long unsigned int,  long unsigned int,  long 
unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 
'long int(long int,  long int,  long int,  long int,  long int,  long int)' 
[-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 
'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 
'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between 
functions of incompatible types 'long int(char *, int)' and 'long int(long int, 
 long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 
'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 
'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between 
functions of incompatible types 'long int(int,  const struct sigaction *, 
struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct 
sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long 
int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 
'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 
'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between 
functions of incompatible types 'long int(int,  struct old_sigaction *, struct 
old_sigaction *)' and 'long int(long int,  long int,  long int)' 
[-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 
'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 
'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_sparc_remap_file_pages' alias 
>> between functions of incompatible types 'long int(long unsigned int,  long 
>> unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' 
>> and 'long int(long int,  long int,  long int,  long int,  long int)' 
>> [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:119:1: note: in expansion of macro 
'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned 
long, size,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:119:1: note: in expansion of macro 
'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned 
long, size,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions 
of incompatible types 'long int(long unsigned int,  long unsigned int,  long 
unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 
'long int(long int,  long int,  long int,  long int,  long int,  long int)' 
[-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 
'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 
'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
   In file included from arch/sparc//kernel/sys_sparc_32.c:21:
   include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions 
of incompatible types 'long int(long unsigned int,  long unsigned int,  long 
unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 
'long int(long int,  long int,  long int,  long int,  long int,  long int)' 
[-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 
'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 
'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between 
functions of incompatible types 'long int(char *, int)' and 'long int(long int, 
 long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 
'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 
'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between 
functions of incompatible types 'long int(int,  const struct sigaction *, 
struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct 
sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long 
int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 
'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 
'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between 
functions of incompatible types 'long int(int,  struct old_sigaction *, struct 
old_sigaction *)' and 'long int(long int,  long int,  long int)' 
[-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 
'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 
'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_sparc_remap_file_pages' alias 
>> between functions of incompatible types 'long int(long unsigned int,  long 
>> unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' 
>> and 'long int(long int,  long int,  long int,  long int,  long int)' 
>> [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:119:1: note: in expansion of macro 
'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned 
long, size,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:119:1: note: in expansion of macro 
'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned 
long, size,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions 
of incompatible types 'long int(long unsigned int,  long unsigned int,  long 
unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 
'long int(long int,  long int,  long int,  long int,  long int,  long int)' 
[-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 
'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro 
'__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 
'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 
'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +211 include/linux/syscalls.h

609320c8 Yonghong Song       2017-09-07  204  
bed1ffca Frederic Weisbecker 2009-03-13  205  #define SYSCALL_DEFINEx(x, sname, 
...)                            \
99e621f7 Al Viro             2013-03-05  206    SYSCALL_METADATA(sname, x, 
__VA_ARGS__)                 \
bed1ffca Frederic Weisbecker 2009-03-13 @207    __SYSCALL_DEFINEx(x, sname, 
__VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  208  
2cf09666 Al Viro             2013-01-21  209  #define __PROTECT(...) 
asmlinkage_protect(__VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  210  #define __SYSCALL_DEFINEx(x, 
name, ...)                                   \
83460ec8 Andi Kleen          2013-11-12 @211    asmlinkage long 
sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))       \
83460ec8 Andi Kleen          2013-11-12  212            
__attribute__((alias(__stringify(SyS##name))));         \
07fe6e00 Al Viro             2013-01-21  213    static inline long 
SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));  \
f9597f24 Sergei Trofimovich  2013-09-11  214    asmlinkage long 
SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));      \
07fe6e00 Al Viro             2013-01-21  215    asmlinkage long 
SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))       \
1a94bc34 Heiko Carstens      2009-01-14  216    {                               
                                \
2cf09666 Al Viro             2013-01-21  217            long ret = 
SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));  \
07fe6e00 Al Viro             2013-01-21  218            
__MAP(x,__SC_TEST,__VA_ARGS__);                         \
2cf09666 Al Viro             2013-01-21  219            __PROTECT(x, 
ret,__MAP(x,__SC_ARGS,__VA_ARGS__));       \
2cf09666 Al Viro             2013-01-21  220            return ret;             
                                \
1a94bc34 Heiko Carstens      2009-01-14  221    }                               
                                \
07fe6e00 Al Viro             2013-01-21  222    static inline long 
SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
1a94bc34 Heiko Carstens      2009-01-14  223  

:::::: The code at line 211 was first introduced by commit
:::::: 83460ec8dcac14142e7860a01fa59c267ac4657c syscalls.h: use gcc alias 
instead of assembler aliases for syscalls

:::::: TO: Andi Kleen <a...@linux.intel.com>
:::::: CC: Linus Torvalds <torva...@linux-foundation.org>

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

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