* Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> [150401 14:36]:
> On Wed, 18 Mar 2015 15:48:02 -0700 Tony Lindgren <tony@xxxxxxxxxxx> wrote:
>
> > Looks like dm81xx can only do 32-bit fifo reads like am35x. Let's set
> > up musb-dsps with a custom read_fifo function based on the compatible
> > flag.
> >
> > Otherwise we can get the following errors when starting dhclient on a
> > asix USB Ethernet adapter:
> >
> > asix 2-1:1.0 eth2: asix_rx_fixup() Bad Header Length 0xffff003c, offset 4
> >
> > While at it, let's also remove pointless cast of the driver data.
>
> This breaks my i386 allmodconfig build.
>
> > +/* Similar to am35x, dm81xx support only 32-bit read operation */
> > +static void dsps_read_fifo32(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
> > +{
> > + void __iomem *fifo = hw_ep->fifo;
> > + u32 val;
> > + int i;
> > +
> > + /* Read for 32bit-aligned destination address */
> > + if (likely((0x03 & (unsigned long)dst) == 0) && len >= 4) {
> > + readsl(fifo, dst, len >> 2);
>
> akpm3:/usr/src/linux-4.0-rc6> grep -r readsl arch/x86
> akpm3:/usr/src/linux-4.0-rc6>
Yes sorry, the fix is to use ioread32_rep() instead. I already sent a fix
for that on the 25th as:
"[PATCH 1/1] usb: musb: dsps: fix build on i386 when COMPILE_TEST is set"
https://www.marc.info/?l=linux-usb&m=142731859732737&w=1
Felipe, can you please get that into Linux next?
Regards,
Tony
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