Re: [PATCH v2 1/9] drivers/char: Add support for Xue USB3 debugger

[Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>]

On Thu, Jul 14, 2022 at 08:05:28AM +0200, Jan Beulich wrote:
> On 06.07.2022 17:32, Marek Marczykowski-Górecki wrote:
> > +struct xue {
> > +    struct xue_dbc_reg *dbc_reg;
> > +    struct xue_dbc_ctx *dbc_ctx;
> > +    struct xue_erst_segment *dbc_erst;
> > +    struct xue_trb_ring dbc_ering;
> > +    struct xue_trb_ring dbc_oring;
> > +    struct xue_trb_ring dbc_iring;
> > +    struct xue_work_ring dbc_owork;
> > +    char *dbc_str;
> > +
> > +    pci_sbdf_t sbdf;
> > +    uint64_t xhc_mmio_phys;
> > +    uint64_t xhc_mmio_size;
> > +    uint64_t xhc_dbc_offset;
> 
> One more observation: None of these four field look to be needed.
> They're all used only in a single function, so could be local
> variables there (and xhc_dbc_offset is only ever written, so
> could be dropped altogether).

While xhc_mmio_size indeed isn't used outside of this function,
xhc_mmio_phys and xhc_dbc_offset are in later patches.

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab

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