sparc: switch to {get,put}_compat_sigset()

slightly more complicated than usual, since old sigframe layout
on sparc keeps the first 32 bits of mask away from the rest

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index 0e4c08c..36ad830 100644 (file)
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -248,7 +248,6 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
        compat_uptr_t fpu_save;
        compat_uptr_t rwin_save;
        sigset_t set;
-       compat_sigset_t seta;
        int err, i;
        
        /* Always make any pending restarted system calls return -EINTR */
@@ -311,7 +310,7 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
        err |= __get_user(fpu_save, &sf->fpu_save);
        if (!err && fpu_save)
                err |= restore_fpu_state(regs, compat_ptr(fpu_save));
-       err |= copy_from_user(&seta, &sf->mask, sizeof(compat_sigset_t));
+       err |= get_compat_sigset(&set, &sf->mask);
        err |= compat_restore_altstack(&sf->stack);
        if (err)
                goto segv;
@@ -322,7 +321,6 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
                        goto segv;
        }
 
-       set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32);
        set_current_blocked(&set);
        return;
 segv:
@@ -554,7 +552,6 @@ static int setup_rt_frame32(struct ksignal *ksig, struct pt_regs *regs,
        void __user *tail;
        int sigframe_size;
        u32 psr;
-       compat_sigset_t seta;
 
        /* 1. Make sure everything is clean */
        synchronize_user_stack();
@@ -624,9 +621,7 @@ static int setup_rt_frame32(struct ksignal *ksig, struct pt_regs *regs,
        /* Setup sigaltstack */
        err |= __compat_save_altstack(&sf->stack, regs->u_regs[UREG_FP]);
 
-       seta.sig[1] = (oldset->sig[0] >> 32);
-       seta.sig[0] = oldset->sig[0];
-       err |= __copy_to_user(&sf->mask, &seta, sizeof(compat_sigset_t));
+       err |= put_compat_sigset(&sf->mask, oldset, sizeof(compat_sigset_t));
 
        if (!wsaved) {
                err |= copy_in_user((u32 __user *)sf,