mips: switch to saner kernel_execve() semantics

Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ede301f..4183e62 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -41,6 +41,7 @@ config MIPS
        select MODULES_USE_ELF_REL
        select MODULES_USE_ELF_RELA if 64BIT
        select GENERIC_KERNEL_THREAD
+       select GENERIC_KERNEL_EXECVE
 
 menu "Machine selection"
 

diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 8ae908c..b306e20 100644 (file)
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -18,7 +18,6 @@
 #ifndef __ASSEMBLY__
 
 #define __ARCH_OMIT_COMPAT_SYS_GETDENTS64
-#define __ARCH_WANT_KERNEL_EXECVE
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_EXECVE

diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index 5dcb5fb..3320cb4 100644 (file)
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -69,8 +69,7 @@ FEXPORT(ret_from_kernel_thread)
        jal     schedule_tail           # a0 = struct task_struct *prev
        move    a0, s1
        jal     s0
-       li      a0, 0
-       j       sys_exit
+       j       syscall_exit
 
 FEXPORT(ret_from_fork)
        jal     schedule_tail           # a0 = struct task_struct *prev
@@ -192,15 +191,6 @@ syscall_exit_work:
        jal     syscall_trace_leave
        b       resume_userspace
 
-LEAF(ret_from_kernel_execve)
-       move    sp, a0
-       ori     $28,  sp, _THREAD_SIZE - 1
-       xori    $28, $28, _THREAD_SIZE - 1
-       li      v0, 0
-       li      a3, 0
-       j       syscall_exit_partial
-       END(ret_from_kernel_execve)
-
 #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT)
 
 /*