Drop struct pt_regs * argument in compat_sys_execve()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 3063e6f..3bcf1b9 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -275,9 +275,6 @@
struct compat_sigaction;
struct compat_siginfo;
struct compat_sigaltstack;
-long compat_sys_execve(const char __user *path,
- compat_uptr_t __user *argv,
- compat_uptr_t __user *envp, struct pt_regs *);
long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
struct compat_sigaction __user *oact,
size_t sigsetsize);
@@ -304,9 +301,6 @@
struct compat_timespec __user *interval);
/* These are the intvec_64.S trampolines. */
-long _compat_sys_execve(const char __user *path,
- const compat_uptr_t __user *argv,
- const compat_uptr_t __user *envp);
long _compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
struct compat_sigaltstack __user *uoss_ptr);
long _compat_sys_rt_sigreturn(void);
diff --git a/arch/tile/include/asm/processor.h b/arch/tile/include/asm/processor.h
index 8c4dd9f..9a83e53 100644
--- a/arch/tile/include/asm/processor.h
+++ b/arch/tile/include/asm/processor.h
@@ -239,6 +239,9 @@
#define KSTK_TOP(task) (task_ksp0(task) - STACK_TOP_DELTA)
#define task_pt_regs(task) \
((struct pt_regs *)(task_ksp0(task) - KSTK_PTREGS_GAP) - 1)
+#define current_pt_regs() \
+ ((struct pt_regs *)((stack_pointer | (THREAD_SIZE - 1)) - \
+ (KSTK_PTREGS_GAP - 1)) - 1)
#define task_sp(task) (task_pt_regs(task)->sp)
#define task_pc(task) (task_pt_regs(task)->pc)
/* Aliases for pc and sp (used in fs/proc/array.c) */
diff --git a/arch/tile/kernel/compat.c b/arch/tile/kernel/compat.c
index d67459b..a8e5a84 100644
--- a/arch/tile/kernel/compat.c
+++ b/arch/tile/kernel/compat.c
@@ -103,7 +103,6 @@
#define compat_sys_readahead sys32_readahead
/* Call the trampolines to manage pt_regs where necessary. */
-#define compat_sys_execve _compat_sys_execve
#define compat_sys_sigaltstack _compat_sys_sigaltstack
#define compat_sys_rt_sigreturn _compat_sys_rt_sigreturn
#define sys_clone _sys_clone
diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S
index 7c06d59..73f6c0a 100644
--- a/arch/tile/kernel/intvec_64.S
+++ b/arch/tile/kernel/intvec_64.S
@@ -1194,7 +1194,6 @@
PTREGS_SYSCALL(sys_sigaltstack, r2)
PTREGS_SYSCALL_SIGRETURN(sys_rt_sigreturn, r0)
#ifdef CONFIG_COMPAT
-PTREGS_SYSCALL(compat_sys_execve, r3)
PTREGS_SYSCALL(compat_sys_sigaltstack, r2)
PTREGS_SYSCALL_SIGRETURN(compat_sys_rt_sigreturn, r0)
#endif
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 307d010..9dc1391 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -614,8 +614,7 @@
#ifdef CONFIG_COMPAT
long compat_sys_execve(const char __user *path,
compat_uptr_t __user *argv,
- compat_uptr_t __user *envp,
- struct pt_regs *regs)
+ compat_uptr_t __user *envp)
{
long error;
struct filename *filename;
@@ -624,7 +623,8 @@
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
- error = compat_do_execve(filename->name, argv, envp, regs);
+ error = compat_do_execve(filename->name, argv, envp,
+ current_pt_regs());
putname(filename);
if (error == 0)
single_step_execve();
diff --git a/include/linux/compat.h b/include/linux/compat.h
index d0ced10..d2db710 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -286,10 +286,8 @@
int compat_do_execve(const char *filename, const compat_uptr_t __user *argv,
const compat_uptr_t __user *envp, struct pt_regs *regs);
-#ifdef __ARCH_WANT_SYS_EXECVE
asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
const compat_uptr_t __user *envp);
-#endif
asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp,
