Re: [PATCH v19 2/9] usb: dwc3: core: Access XHCI address space temporarily to read port info

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On Thu, Apr 04, 2024 at 02:58:29PM +0200, Greg Kroah-Hartman wrote:
> On Thu, Apr 04, 2024 at 10:07:27AM +0200, Krzysztof Kozlowski wrote:
> > On 04/04/2024 09:21, Johan Hovold wrote:
> > > On Thu, Apr 04, 2024 at 10:42:22AM +0530, Krishna Kurapati wrote:
> > >  
> > >> +static int dwc3_get_num_ports(struct dwc3 *dwc)
> > >> +{
> > >> +	void __iomem *base;
> > >> +	u8 major_revision;
> > >> +	u32 offset;
> > >> +	u32 val;
> > >> +
> > >> +	/*
> > >> +	 * Remap xHCI address space to access XHCI ext cap regs since it is
> > >> +	 * needed to get information on number of ports present.
> > >> +	 */
> > >> +	base = ioremap(dwc->xhci_resources[0].start,
> > >> +		       resource_size(&dwc->xhci_resources[0]));
> > >> +	if (!base)
> > >> +		return PTR_ERR(base);
> > > 
> > > This is obviously still broken. You need to update the return value as
> > > well.
> > > 
> > > Fix in v20.
> > 
> > If one patchset reaches 20 versions, I think it is time to stop and
> > really think from the beginning, why issues keep appearing and reviewers
> > are still not happy.
> > 
> > Maybe you did not perform extensive internal review, which you are
> > encouraged to by your own internal policies, AFAIR. Before posting next
> > version, please really get some internal review first.
> 
> Also get those internal reviewers to sign-off on the commits and have
> that show up when you post them next.  That way they are also
> responsible for this patchset, it's not fair that they are making you do
> all the work here :)

"you" meaning Krishna, sorry for any confusion here.




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