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 3063e6fc8daaa0dd3dd982a857889ffec74f451e..3bcf1b94b5632ffca23aee6b39ee386973fec02c 100644 (file)
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -275,9 +275,6 @@ extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka,
 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 @@ long compat_sys_sched_rr_get_interval(compat_pid_t pid,
                                      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 8c4dd9ff91eb91745e8918506375f2d4cb10d588..9a83e531e843368c8d667f9c594a2132dcf5ec3f 100644 (file)
--- a/arch/tile/include/asm/processor.h
+++ b/arch/tile/include/asm/processor.h
@@ -239,6 +239,9 @@ unsigned long get_wchan(struct task_struct *p);
 #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 d67459b9ac2aa43f4c44eb50125c0143509e873f..a8e5a847037c4850329d446a144444dc07f2987b 100644 (file)
--- a/arch/tile/kernel/compat.c
+++ b/arch/tile/kernel/compat.c
@@ -103,7 +103,6 @@ long compat_sys_sched_rr_get_interval(compat_pid_t pid,
 #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 7c06d597ffd0263875d0d67565f487df608575de..73f6c0a648c46d9f8fd27d0e50d39fb200acb933 100644 (file)
--- a/arch/tile/kernel/intvec_64.S
+++ b/arch/tile/kernel/intvec_64.S
@@ -1194,7 +1194,6 @@ PTREGS_SYSCALL(sys_execve, r3)
 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 307d010696c994d1db638accea596c01ba46ebbf..9dc139127f8682d2c4ef6d0399dbda1c947a6168 100644 (file)
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -614,8 +614,7 @@ out:
 #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 @@ long compat_sys_execve(const char __user *path,
        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 d0ced1011f2fa28cf96087880d6cddda011de13f..d2db71077d932a371652e884617006f68d0fa2c1 100644 (file)
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -286,10 +286,8 @@ asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
 
 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,