On Fri, Jun 14, 2024 at 02:47:25PM +0200, Takashi Iwai wrote: > Although we have already a mechanism for sanity checks of input values > for control writes, it's not applied unless the kconfig > CONFIG_SND_CTL_INPUT_VALIDATION is set due to the performance reason. > Nevertheless, it still makes sense to apply the check for user > elements despite of its cost, as that's the only way to filter out the > invalid values; the user controls are handled solely in ALSA core > code, and there is no corresponding driver, after all. > > This patch enables the input value validation for user control > elements no matter whether CONFIG_SND_CTL_INPUT_VALIDATION is set or > not. The kselftest will be happier with this change, as the incorrect > values will be bailed out now with errors. Reviewed-by: Mark Brown <broonie@xxxxxxxxxx>
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