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| author | Naoya Tezuka <naoyatezuka@chromium.org> | 2025-06-20 15:28:22 +0900 |
|---|---|---|
| committer | Tzung-Bi Shih <tzungbi@kernel.org> | 2025-06-23 02:36:23 +0000 |
| commit | 545daf90910ec83e167cf3fbcc31fcf5467432b8 (patch) | |
| tree | a943f7898cdc1f7dd4d9aeeacd00e0f3cb112dd4 /scripts/lib/kdoc/kdoc_parser.py | |
| parent | 8866f4e557eba43e991f99711515217a95f62d2e (diff) | |
platform/chrome: chromeos_pstore: Add ecc_size module parameter
On ChromiumOS devices, the `ecc_size` is set to 0 (check dmesg | grep ecc
to see `ecc: 0`): this disables ECC for ramoops region, even when
`ramoops.ecc=1` is given to kernel command line parameter.
Introduce `ecc_size` module parameter to provide a method to turn on ECC
for ramoops and set different values of ecc_size per devices.
A large `ecc_size` value can cause a kernel panic due to a constraint in
Reed-Solomon code library. The validation for this constraint should
belong to the common pstore RAM layer, not in each individual driver. So
this check is handled by a separate patch [1].
[1] https://lore.kernel.org/lkml/20250620054757.1006729-1-naoyatezuka@chromium.org
Signed-off-by: Naoya Tezuka <naoyatezuka@chromium.org>
Link: https://lore.kernel.org/r/20250620062822.1018798-1-naoyatezuka@chromium.org
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_parser.py')
0 files changed, 0 insertions, 0 deletions