diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-10-06 16:23:29 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-10-14 14:32:14 +0200 |
| commit | ac25e790d9c3c9b5d34609b7dc1d60c09494c668 (patch) | |
| tree | 1ea07858e445c49e5529f2058977ed95b751c015 /arch/s390/include/asm/ptrace.h | |
| parent | db7e007fd61ca07e5f3b04cf2168531b074d318d (diff) | |
s390/flags: fix flag handling
The cpu flags and pt_regs flags fields are each 64 bits in size. A flag can
be set with helper functions like set_cpu_flags().
These functions create a mask using "1U << flag". This doesn't work if flag
is larger than 31, since 1U << 32 == 0.
So fix this in case we ever will have such flag numbers.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/ptrace.h')
| -rw-r--r-- | arch/s390/include/asm/ptrace.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index 6feda2599282..b60f840f601d 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -128,17 +128,17 @@ struct per_struct_kernel { static inline void set_pt_regs_flag(struct pt_regs *regs, int flag) { - regs->flags |= (1U << flag); + regs->flags |= (1UL << flag); } static inline void clear_pt_regs_flag(struct pt_regs *regs, int flag) { - regs->flags &= ~(1U << flag); + regs->flags &= ~(1UL << flag); } static inline int test_pt_regs_flag(struct pt_regs *regs, int flag) { - return !!(regs->flags & (1U << flag)); + return !!(regs->flags & (1UL << flag)); } /* |