x86: switch to generic compat rt_sigqueueinfo()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/x86/Kconfig

@@ -114,6 +114,7 @@ config X86
 	select MODULES_USE_ELF_RELA if X86_64
 	select CLONE_BACKWARDS if X86_32
 	select GENERIC_SIGALTSTACK
+	select GENERIC_COMPAT_RT_SIGQUEUEINFO
 	select GENERIC_COMPAT_RT_SIGPENDING
 
 config INSTRUCTION_DECODER

arch/x86/ia32/sys_ia32.c

@@ -310,21 +310,6 @@ asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
 	return ret;
 }
 
-asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
-				      compat_siginfo_t __user *uinfo)
-{
-	siginfo_t info;
-	int ret;
-	mm_segment_t old_fs = get_fs();
-
-	if (copy_siginfo_from_user32(&info, uinfo))
-		return -EFAULT;
-	set_fs(KERNEL_DS);
-	ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info);
-	set_fs(old_fs);
-	return ret;
-}
-
 /* warning: next two assume little endian */
 asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
 			    u32 poslo, u32 poshi)

arch/x86/include/asm/sys_ia32.h

@@ -45,7 +45,6 @@ asmlinkage long sys32_sysfs(int, u32, u32);
 
 asmlinkage long sys32_sched_rr_get_interval(compat_pid_t,
 					    struct compat_timespec __user *);
-asmlinkage long sys32_rt_sigqueueinfo(int, int, compat_siginfo_t __user *);
 
 asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);
 asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32);

arch/x86/syscalls/syscall_32.tbl

@@ -184,7 +184,7 @@
 175	i386	rt_sigprocmask		sys_rt_sigprocmask
 176	i386	rt_sigpending		sys_rt_sigpending		compat_sys_rt_sigpending
 177	i386	rt_sigtimedwait		sys_rt_sigtimedwait		compat_sys_rt_sigtimedwait
-178	i386	rt_sigqueueinfo		sys_rt_sigqueueinfo		sys32_rt_sigqueueinfo
+178	i386	rt_sigqueueinfo		sys_rt_sigqueueinfo		compat_sys_rt_sigqueueinfo
 179	i386	rt_sigsuspend		sys_rt_sigsuspend
 180	i386	pread64			sys_pread64			sys32_pread
 181	i386	pwrite64		sys_pwrite64			sys32_pwrite

arch/x86/syscalls/syscall_64.tbl

@@ -337,7 +337,7 @@
 521	x32	ptrace			compat_sys_ptrace
 522	x32	rt_sigpending		compat_sys_rt_sigpending
 523	x32	rt_sigtimedwait		compat_sys_rt_sigtimedwait
-524	x32	rt_sigqueueinfo		sys32_rt_sigqueueinfo
+524	x32	rt_sigqueueinfo		compat_sys_rt_sigqueueinfo
 525	x32	sigaltstack		compat_sys_sigaltstack
 526	x32	timer_create		compat_sys_timer_create
 527	x32	mq_notify		compat_sys_mq_notify