arch/tile: Use <asm-generic/syscalls.h>

With this change we now include <asm-generic/syscalls.h> into the "tile"
version of the header.  To take full advantage of the prototypes there,
we also change our naming convention for "struct pt_regs *" syscalls so
that, e.g., _sys_execve() is the "true" syscall entry, which sets the
appropriate register to point to the pt_regs before calling sys_execve().

While doing this I realized I no longer needed the fork and vfork
entry point stubs, since those functions aren't in the generic
syscall ABI, so I removed them as well.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 704f3e8a4385..94f579d0a494 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -66,10 +66,10 @@ static noinline void force_sig_info_fault(int si_signo, int si_code,
 #ifndef __tilegx__
 /*
  * Synthesize the fault a PL0 process would get by doing a word-load of
- * an unaligned address or a high kernel address.  Called indirectly
- * from sys_cmpxchg() in kernel/intvec.S.
+ * an unaligned address or a high kernel address.
  */
-int _sys_cmpxchg_badaddr(unsigned long address, struct pt_regs *regs)
+SYSCALL_DEFINE2(cmpxchg_badaddr, unsigned long, address,
+                struct pt_regs *, regs)
 {
         if (address >= PAGE_OFFSET)
                 force_sig_info_fault(SIGSEGV, SEGV_MAPERR, address,