Messages in this thread | | | Date | Sat, 9 May 2015 18:59:01 -0300 | Subject | Re: [PATCH] net: fec: add support of ethtool get_regs | From | Fabio Estevam <> |
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Philippe,
On Sat, May 9, 2015 at 6:17 PM, Russell King - ARM Linux <linux@arm.linux.org.uk> wrote:
> Using memcpy_fromio() to copy device registers is not a good idea - > it can use a variable access size which can cause bus faults.
An example on how memcpy_fromio() can be avoided in get_regs: drivers/net/ethernet/samsung/sxgbe/sxgbe_ethtool.c
Regards,
Fabio Estevam
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