[LLVMbugs] [Bug 6934] New: clang: should have a -Wno-* flag to turn off "initializer overrides prior initialization of this subobject"

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=6934

           Summary: clang: should have a -Wno-* flag to turn off
                    "initializer overrides prior initialization of this
                    subobject"
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Driver
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: edwintorok at gmail.com
                CC: llvmbugs at cs.uiuc.edu
            Blocks: 4068


Testcase from Linux kernel, there should be a way to turn off this warning,
since it serves no useful purpose here:
typedef void (*sys_call_ptr_t)(void);
extern void sys_ni_syscall(void);
#define __SYSCALL(nr, call) [nr] = (call),
#define __NR_syscall_max 299
extern void sys_read(void) ;
const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
        [0 ... __NR_syscall_max] = &sys_ni_syscall,
#define __NR_read                               0
__SYSCALL(__NR_read, sys_read)
};

$ clang p3.c
p3.c:9:1: warning: initializer overrides prior initialization of this subobject
__SYSCALL(__NR_read, sys_read)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
p3.c:3:36: note: instantiated from:
#define __SYSCALL(nr, call) [nr] = (call),
                                   ^~~~~~
p3.c:7:29: note: previous initialization is here
        [0 ... __NR_syscall_max] = &sys_ni_syscall,
                                   ^~~~~~~~~~~~~~~
2 diagnostics generated.

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