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| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-09 15:52:17 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-09 15:52:17 -0400 |
| commit | d69e8c63fcbbf695ff7ff2c6d26efead23cfbb3a (patch) | |
| tree | 4d714ecd331233069ab718989bb017dfd934e129 /arch/s390/include/asm/processor.h | |
| parent | 6cfe7bd0dfd33033683639039b5608d6534c19eb (diff) | |
| parent | 76dcd734eca23168cb008912c0f69ff408905235 (diff) | |
Merge tag 'v6.1-rc8' into rdma.git for-next
For dependencies in following patches
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'arch/s390/include/asm/processor.h')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 87be3e855bf7..c907f747d2a0 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -199,7 +199,16 @@ unsigned long __get_wchan(struct task_struct *p); /* Has task runtime instrumentation enabled ? */ #define is_ri_task(tsk) (!!(tsk)->thread.ri_cb) -register unsigned long current_stack_pointer asm("r15"); +/* avoid using global register due to gcc bug in versions < 8.4 */ +#define current_stack_pointer (__current_stack_pointer()) + +static __always_inline unsigned long __current_stack_pointer(void) +{ + unsigned long sp; + + asm volatile("lgr %0,15" : "=d" (sp)); + return sp; +} static __always_inline unsigned short stap(void) { |