From b50511e41aa51a89b4176784a670582424bc7db6 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Sun, 30 Oct 2011 15:16:50 +0100 Subject: [S390] cleanup psw related bits and pieces Split out addressing mode bits from PSW_BASE_BITS, rename PSW_BASE_BITS to PSW_MASK_BASE, get rid of psw_user32_bits, remove unused function enabled_wait(), introduce PSW_MASK_USER, and drop PSW_MASK_MERGE macros. Change psw_kernel_bits / psw_user_bits to contain only the bits that are always set in the respective mode. Signed-off-by: Martin Schwidefsky --- arch/s390/lib/delay.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/s390/lib') diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c index a65229d91c92..db92f044024c 100644 --- a/arch/s390/lib/delay.c +++ b/arch/s390/lib/delay.c @@ -32,7 +32,8 @@ static void __udelay_disabled(unsigned long long usecs) u64 clock_saved; u64 end; - mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT; + mask = psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_WAIT | + PSW_MASK_EXT | PSW_MASK_MCHECK; end = get_clock() + (usecs << 12); clock_saved = local_tick_disable(); __ctl_store(cr0_saved, 0, 0); -- cgit v1.2.3 From 3c52e49d7c81434e3d2ccb520b3a654c2cc7d03d Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Sun, 30 Oct 2011 15:17:15 +0100 Subject: [S390] sparse: fix sparse warnings with __user pointers Use __force to quiet sparse warnings about user address space. Signed-off-by: Martin Schwidefsky --- arch/s390/lib/uaccess_pt.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/s390/lib') diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 74833831417f..342ae35a5ba9 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; -- cgit v1.2.3