diff options
| -rw-r--r-- | arch/s390/kernel/compat_signal.c | 23 | ||||
| -rw-r--r-- | arch/s390/kernel/traps.c | 3 | ||||
| -rw-r--r-- | arch/s390/lib/uaccess_pt.c | 6 |
3 files changed, 18 insertions, 14 deletions
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index c68ea9c1804..4f68c81d3ff 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -141,7 +141,8 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) break; case __SI_FAULT >> 16: err |= __get_user(tmp, &from->si_addr); - to->si_addr = (void __user *)(u64) (tmp & PSW32_ADDR_INSN); + to->si_addr = (void __force __user *) + (u64) (tmp & PSW32_ADDR_INSN); break; case __SI_POLL >> 16: err |= __get_user(to->si_band, &from->si_band); @@ -482,7 +483,7 @@ static int setup_frame32(int sig, struct k_sigaction *ka, } else { regs->gprs[14] = (__u64) frame->retcode | PSW32_ADDR_AMODE; if (__put_user(S390_SYSCALL_OPCODE | __NR_sigreturn, - (u16 __user *)(frame->retcode))) + (u16 __force __user *)(frame->retcode))) goto give_sigsegv; } @@ -491,12 +492,12 @@ static int setup_frame32(int sig, struct k_sigaction *ka, goto give_sigsegv; /* Set up registers for signal handler */ - regs->gprs[15] = (__u64) frame; + regs->gprs[15] = (__force __u64) frame; regs->psw.mask |= PSW_MASK_BA; /* force amode 31 */ - regs->psw.addr = (__u64) ka->sa.sa_handler; + regs->psw.addr = (__force __u64) ka->sa.sa_handler; regs->gprs[2] = map_signal(sig); - regs->gprs[3] = (__u64) &frame->sc; + regs->gprs[3] = (__force __u64) &frame->sc; /* We forgot to include these in the sigcontext. To avoid breaking binary compatibility, they are passed as args. */ @@ -504,7 +505,7 @@ static int setup_frame32(int sig, struct k_sigaction *ka, regs->gprs[5] = current->thread.prot_addr; /* Place signal number on stack to allow backtrace from handler. */ - if (__put_user(regs->gprs[2], (int __user *) &frame->signo)) + if (__put_user(regs->gprs[2], (int __force __user *) &frame->signo)) goto give_sigsegv; return 0; @@ -547,21 +548,21 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info, } else { regs->gprs[14] = (__u64) frame->retcode; err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn, - (u16 __user *)(frame->retcode)); + (u16 __force __user *)(frame->retcode)); } /* Set up backchain. */ - if (__put_user(regs->gprs[15], (unsigned int __user *) frame)) + if (__put_user(regs->gprs[15], (unsigned int __force __user *) frame)) goto give_sigsegv; /* Set up registers for signal handler */ - regs->gprs[15] = (__u64) frame; + regs->gprs[15] = (__force __u64) frame; regs->psw.mask |= PSW_MASK_BA; /* force amode 31 */ regs->psw.addr = (__u64) ka->sa.sa_handler; regs->gprs[2] = map_signal(sig); - regs->gprs[3] = (__u64) &frame->info; - regs->gprs[4] = (__u64) &frame->uc; + regs->gprs[3] = (__force __u64) &frame->info; + regs->gprs[4] = (__force __u64) &frame->uc; return 0; give_sigsegv: diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 79eee3f27af..a9807dd8627 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -334,7 +334,8 @@ void __kprobes do_per_trap(struct pt_regs *regs) info.si_signo = SIGTRAP; info.si_errno = 0; info.si_code = TRAP_HWBKPT; - info.si_addr = (void *) current->thread.per_event.address; + info.si_addr = + (void __force __user *) current->thread.per_event.address; force_sig_info(SIGTRAP, &info, current); } diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 74833831417..342ae35a5ba 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -342,7 +342,8 @@ int futex_atomic_op_pt(int op, u32 __user *uaddr, int oparg, int *old) if (segment_eq(get_fs(), KERNEL_DS)) return __futex_atomic_op_pt(op, uaddr, oparg, old); spin_lock(¤t->mm->page_table_lock); - uaddr = (int __user *) __dat_user_addr((unsigned long) uaddr); + uaddr = (u32 __force __user *) + __dat_user_addr((__force unsigned long) uaddr); if (!uaddr) { spin_unlock(¤t->mm->page_table_lock); return -EFAULT; @@ -378,7 +379,8 @@ int futex_atomic_cmpxchg_pt(u32 *uval, u32 __user *uaddr, if (segment_eq(get_fs(), KERNEL_DS)) return __futex_atomic_cmpxchg_pt(uval, uaddr, oldval, newval); spin_lock(¤t->mm->page_table_lock); - uaddr = (int __user *) __dat_user_addr((unsigned long) uaddr); + uaddr = (u32 __force __user *) + __dat_user_addr((__force unsigned long) uaddr); if (!uaddr) { spin_unlock(¤t->mm->page_table_lock); return -EFAULT; |