[PATCH AUTOSEL 6.10 17/70] s390/cpum_sf: Remove WARN_ON_ONCE statements

Sasha Levin
2024-10-04T18:22:32Z

From: Thomas Richter <tmricht@linux.ibm.com>

[ Upstream commit b495e710157606889f2d8bdc62aebf2aa02f67a7 ]

Remove WARN_ON_ONCE statements. These have not triggered in the
past.

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/kernel/perf_cpum_sf.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 06efad5b4f931..a3169193775f7 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1463,7 +1463,7 @@ static int aux_output_begin(struct perf_output_handle *handle,
unsigned long range, i, range_scan, idx, head, base, offset;
struct hws_trailer_entry *te;

- if (WARN_ON_ONCE(handle->head & ~PAGE_MASK))
+ if (handle->head & ~PAGE_MASK)
return -EINVAL;

aux->head = handle->head >> PAGE_SHIFT;
@@ -1642,7 +1642,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
unsigned long num_sdb;

aux = perf_get_aux(handle);
- if (WARN_ON_ONCE(!aux))
+ if (!aux)
return;

/* Inform user space new data arrived */
@@ -1661,7 +1661,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
num_sdb);
break;
}
- if (WARN_ON_ONCE(!aux))
+ if (!aux)
return;

/* Update head and alert_mark to new position */
@@ -1896,12 +1896,8 @@ static void cpumsf_pmu_start(struct perf_event *event, int flags)
{
struct cpu_hw_sf *cpuhw = this_cpu_ptr(&cpu_hw_sf);

- if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
+ if (!(event->hw.state & PERF_HES_STOPPED))
return;
-
- if (flags & PERF_EF_RELOAD)
- WARN_ON_ONCE(!(event->hw.state & PERF_HES_UPTODATE));
-
perf_pmu_disable(event->pmu);
event->hw.state = 0;
cpuhw->lsctl.cs = 1;
--
2.43.0