Hi,
I'm upgrading from 2.6.36 to 2.6.37 on a MPC8313 ERDB-like board. On
the new kernel, it seems like the USB gadget driver (fsl_usb2_udc) is
never initialized, so USB no longer works.
Adding some printks to the code shows that udc_init() is being run,
which calls platform_driver_probe(). Howe
Hello,
Sometimes (but rather often) I get SPI tasks hanging.
I get the following trace, as if both tasks where blocking each other,
or they are waiting for a third task ?
Can someone help or tell what I should look at ?
[ 240.939898] INFO: task ff000a80.spi:197 blocked for more than 120 seco
Thanks David for review comments!!
Please find my reply in-lined
> -Original Message-
> From: David Laight [mailto:david.lai...@aculab.com]
> Sent: Friday, February 18, 2011 2:12 PM
> To: Kushwaha Prabhakar-B32579; linuxppc-dev@lists.ozlabs.org
> Cc: Kalra Ashish-B00888
> Subject: RE: [P
Thanks David for review comments!!
Please find my reply in-lined
> -Original Message-
> From: David Laight [mailto:david.lai...@aculab.com]
> Sent: Friday, February 18, 2011 2:12 PM
> To: Kushwaha Prabhakar-B32579; linuxppc-dev@lists.ozlabs.org
> Cc: Kalra Ashish-B00888
> Subject: RE: [PA
> + if ((ffs(dereg)-1) < ap->nr_pmp_links) {
> + /* array start from 0 */
> + link = &ap->pmp_link[ffs(dereg)-1];
I'd only call ffs() once - it could be a slow library function.
Any comment should note that ffs() returns
