diff options
| author | Thomas Richter <tmricht@linux.ibm.com> | 2024-06-27 09:02:06 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2024-08-07 20:52:52 +0200 |
| commit | ea95be4bda694d9000677c04efd15a09cd3ee1d2 (patch) | |
| tree | 78395aba303f9a13f41f2c48babd96e61caa3c81 /arch/s390/include/asm | |
| parent | ba38df7a9b2c3d38a53bb26443add88ca24c970e (diff) | |
s390/cpum_sf: Remove unused defines REG_NONE and REG_OVERFLOW
Member hw_perf_event::reg.reg is set but never used, so remove it.
Defines REG_NONE and REG_OVERFLOW are not referenced anymore.
The initialization to zero takes place in function
perf_event_alloc() where
...
event = kmem_cache_alloc_node(perf_event_cache,
GFP_KERNEL | __GFP_ZERO, node);
...
makes sure memory allocated for the event is zero'ed.
This is done in the kernel's common code in kernel/events/core.c
The struct perf_event contains member hw_perf_event as in
struct perf_event {
....
struct hw_perf_event hw;
....
};
This contained sub-structure is also initialized to zero.
No functional change.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm')
| -rw-r--r-- | arch/s390/include/asm/perf_event.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index 4879f3a5c474..05be93b5905d 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -60,8 +60,6 @@ struct perf_sf_sde_regs { #define PERF_CPUM_SF_DIAG_MODE 0x0002 /* Diagnostic-sampling flag */ #define PERF_CPUM_SF_FREQ_MODE 0x0008 /* Sampling with frequency */ -#define REG_NONE 0 -#define REG_OVERFLOW 1 #define OVERFLOW_REG(hwc) ((hwc)->extra_reg.config) #define SFB_ALLOC_REG(hwc) ((hwc)->extra_reg.alloc) #define TEAR_REG(hwc) ((hwc)->last_tag) |