From 80b8585b07feede94a742c4cdb80ab607a8813b3 Mon Sep 17 00:00:00 2001 From: Wu Zhangjin Date: Sat, 10 Oct 2009 19:19:49 +0800 Subject: [PATCH] MIPS: 64-bit: Fix o32 lookup_dcookie syscall An o32 aplication passes a 64-bit value in a pair of registers; a 64-bit kernel expects a 64-bit argument in a single register. Signed-off-by: Chen Jie Signed-off-by: Hu Hongbing Signed-off-by: Wu Zhangjin Signed-off-by: Ralf Baechle --- arch/mips/kernel/linux32.c | 6 ++++++ arch/mips/kernel/scall64-o32.S | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index 6242bc68add..b77fefaff9d 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -428,3 +428,9 @@ _sys32_clone(nabi_no_regargs struct pt_regs regs) return do_fork(clone_flags, newsp, ®s, 0, parent_tidptr, child_tidptr); } + +asmlinkage long sys32_lookup_dcookie(u32 a0, u32 a1, char __user *buf, + size_t len) +{ + return sys_lookup_dcookie(merge_64(a0, a1), buf, len); +} diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 9bbf9775e0b..ba0dde6465a 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -450,7 +450,7 @@ sys_call_table: PTR sys_io_submit PTR sys_io_cancel /* 4245 */ PTR sys_exit_group - PTR sys_lookup_dcookie + PTR sys32_lookup_dcookie PTR sys_epoll_create PTR sys_epoll_ctl PTR sys_epoll_wait /* 4250 */ -- 2.20.1