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Re: [PATCH] staging: rtl8723au: Fix sparse warnings

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Krzysztof Konopko <kris@xxxxxxxxxxx> writes:
> On 12/12/14 00:53, Larry Finger wrote:
>> In RTL8188EU, both BA_starting_seqctrl and TXOP_limit are unsigned short.
>> 
>
> That's not quite the case.  `TXOP_limit` is __le16 in RTL8188EU [1].
> It's __le16 even in your GitHub repo [2].  And that made me thinking
> that there's probably some inconsistency in the header.
>
> I'm _far_ from being a wireless expert but doesn't data coming out of
> the wire/air have the endianess defined explicitly?  And both `AC_param`
> and `ADDBA_request` come out of air?
>
> I was hunting particularly for inconsistencies with `sparse` and came
> across this one.  But I dug a bit further and I wonder why the driver is
> not using standard stuff like the one in `include/linux/ieee80211.h`
> where any data wider than one byte is clearly declared as __le<nn>?

In general all over the wire data is little-endian. The driver has been
slowly moved towards using the standard defines from the Linux headers,
but this is a *lot* of work, and it requires testing. I really don't get
warm fuzzy feelings from patches that blindly make these kinds of
changes without also testing them.

Jes
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