Re: [PATCH 3/3] hwmon: (occ) Provide the SBEFIFO FFDC in binary sysfs

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On Tue, Sep 14, 2021 at 04:35:43PM -0500, Eddie James wrote:
> Save any FFDC provided by the OCC driver, and provide it to userspace
> through a binary sysfs entry. Do some basic state management to
> ensure that userspace can always collect the data if there was an
> error. Notify polling userspace when there is an error too.
> 
> Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxx>
> ---
>  drivers/hwmon/occ/p9_sbe.c | 98 +++++++++++++++++++++++++++++++++++++-
>  1 file changed, 97 insertions(+), 1 deletion(-)

You forgot a Documentation/ABI/ entry :(

Binary sysfs files are for "pass through to the hardware" only, you
should not be dumping kernel data to userspace through them.  I can't
really determine if this is the case here or not, as there's no
documentation saying what you are trying to represent here...

thanks,

greg k-h



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