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ftrace: Do not read-verify buffer_size_kb value

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The sysfs documentation mentions that the value written
to buffer_size_kb ftrace field may be rounded up.
So skip the verify loop on this field.

The case we are worried about, a requested buffer
size that the target cannot fulfill is caught anyway,
as the sysfs write returns with an error that is caught.

Signed-off-by: Christian Loehle <christian.loehle@arm.com>
This commit is contained in:
Christian Loehle 2023-09-21 15:51:30 +01:00 committed by Marc Bonnici
parent 14bb86efad
commit 9199d8884e
1 changed files with 1 additions and 1 deletions
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devlib/collector/ftrace.py
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@ -251,7 +251,7 @@ class FtraceCollector(CollectorBase):
if top_buffer_size: if top_buffer_size:
self.target.write_value( self.target.write_value(
self.target.path.join(self.tracing_path, 'buffer_size_kb'), self.target.path.join(self.tracing_path, 'buffer_size_kb'),
top_buffer_size, top_buffer_size, verify=False
) )
if self.functions: if self.functions: