[SPARC64]: Fix arg passing to compat_sys_ipc().

Do not sign extend args using the sys32_ipc stub, that is
buggy and unnecessary.

Based upon an excellent report by Mikael Pettersson.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>

diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S
index c4a1cef4b1e547992ae671b7710f4952f1c291f1..28a99033565bbdfcfa188f0eebb23be149d973fd 100644 (file)
--- a/arch/sparc64/kernel/sys32.S
+++ b/arch/sparc64/kernel/sys32.S
@@ -92,7 +92,6 @@ SIGN1(sys32_select, compat_sys_select, %o0)
 SIGN1(sys32_mkdir, sys_mkdir, %o1)
 SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
 SIGN1(sys32_sysfs, compat_sys_sysfs, %o0)
-SIGN3(sys32_ipc, compat_sys_ipc, %o1, %o2, %o3)
 SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1)
 SIGN2(sys32_sendfile64, compat_sys_sendfile64, %o0, %o1)
 SIGN1(sys32_prctl, sys_prctl, %o0)

diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index c3adb7ac167d1b84c8bfd13cb412a98804d90951..f2ee1cbe56bcc5b9951bb9982e97a2aca2e98ca4 100644 (file)
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -63,7 +63,7 @@ sys_call_table32:
 /*200*/        .word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
        .word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64
 /*210*/        .word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, sys32_sysinfo
-       .word sys32_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, sys32_adjtimex
+       .word compat_sys_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, sys32_adjtimex
 /*220*/        .word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid
        .word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys32_setfsuid16, sys32_setfsgid16
 /*230*/        .word sys32_select, compat_sys_time, sys_nis_syscall, compat_sys_stime, compat_sys_statfs64