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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-05-09 17:17:21 +0300 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-05-15 12:07:40 +0300 |
| commit | 9b4bbbd2aebb2630c587faae911463198172a7e0 (patch) | |
| tree | b421c4728fe5e9457369392315f7fbd6f091d549 /drivers/platform | |
| parent | 5cac62ac92689e361ef6b83c1984e3fdf76b6766 (diff) | |
| download | linux-stable-9b4bbbd2aebb2630c587faae911463198172a7e0.tar.gz linux-stable-9b4bbbd2aebb2630c587faae911463198172a7e0.tar.bz2 linux-stable-9b4bbbd2aebb2630c587faae911463198172a7e0.zip | |
platform/x86: thinkpad_acpi: Add a comment about 0 in module_param_call()
As per discussion [1] there are only few users of module_param_call() in
kernel which prevent to read module parameters back.
It thinkpad_acpi driver there is even no method do so. Thus, for now,
add just a comment to explain why 0 is used as permissions in
module_param_call().
[1]: https://patchwork.ozlabs.org/patch/713245/
Cc: Richard Weinberger <richard.weinberger@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index d2f67a8071a6..cab115bece15 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -9664,6 +9664,7 @@ module_param_named(enable, alsa_enable, bool, 0444); MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ +/* The module parameter can't be read back, that's why 0 is used here */ #define TPACPI_PARAM(feature) \ module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command at module load, see documentation") |