Michael J. Ruhl 73521f1855 platform/x86/intel/pmt: allow user offset for PMT callbacks ...

[ Upstream commit 0c32840763 ]

Usage of the telem sysfs file allows for partial reads at an offset.
The current callback method returns the buffer starting from offset 0
only.

Include the requested offset in the callback and update the necessary
address calculations with the offset.

Note: offset addition is moved from the caller to the local usage. For
non-callback usage this is unchanged behavior.

Fixes: e92affc74c ("platform/x86/intel/vsec: Add PMT read callbacks")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://lore.kernel.org/r/20241114130358.2467787-2-michael.j.ruhl@intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-12-05 14:01:35 +01:00

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